[WIP]: Code cleanup

Makefile.am

@@ -37,6 +37,7 @@ DIST_SUBDIRS =               \
     src/pulse                \
     src/protocols/kubernetes \
     src/protocols/rdp        \
+    src/protocols/spice      \
     src/protocols/ssh        \
     src/protocols/telnet     \
     src/protocols/vnc
@@ -65,6 +66,10 @@ if ENABLE_RDP
 SUBDIRS += src/protocols/rdp
 endif
 
+if ENABLE_SPICE
+SUBDIRS += src/protocols/spice
+endif
+
 if ENABLE_SSH
 SUBDIRS += src/protocols/ssh
 endif

bin/guacctl

@@ -117,7 +117,7 @@ error() {
 ##
 usage() {
     cat >&2 <<END
-guacctl 1.5.0, Apache Guacamole terminal session control utility.
+guacctl 1.4.0, Apache Guacamole terminal session control utility.
 Usage: guacctl [OPTION] [FILE or NAME]...
 
     -d, --download         download each of the files listed.

configure.ac

@@ -18,7 +18,7 @@
 #
 
 AC_PREREQ([2.61])
-AC_INIT([guacamole-server], [1.5.0])
+AC_INIT([guacamole-server], [1.4.0])
 AC_CONFIG_AUX_DIR([build-aux])
 AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects])
 AM_SILENT_RULES([yes])
@@ -634,6 +634,27 @@ then
 
 fi
 
+#
+# spice-glib
+#
+
+have_spice_glib=disabled
+AC_ARG_WITH([spice],
+            [AS_HELP_STRING([--with-spice],
+                            [support SPICE @<:@default=check@:>@])],
+            [],
+            [with_spice=check])
+
+if test "x$with_spice" != "xno"
+then
+    have_spice_glib=yes
+    PKG_CHECK_MODULES([GLIB2], [glib-2.0],, [have_spice_glib=no])
+    PKG_CHECK_MODULES([SPICE], [spice-client-glib-2.0],, [have_spice_glib=no])
+fi
+
+AM_CONDITIONAL([ENABLE_SPICE], [test "x${have_spice_glib}" = "xyes"])
+AC_SUBST(SPICE_LIBS)
+
 
 #
 # FreeRDP 2 (libfreerdp2, libfreerdp-client2, and libwinpr2)
@@ -1188,6 +1209,7 @@ AC_CONFIG_FILES([Makefile
                  src/protocols/kubernetes/tests/Makefile
                  src/protocols/rdp/Makefile
                  src/protocols/rdp/tests/Makefile
+                 src/protocols/spice/Makefile
                  src/protocols/ssh/Makefile
                  src/protocols/telnet/Makefile
                  src/protocols/vnc/Makefile])
@@ -1199,6 +1221,7 @@ AC_OUTPUT
 
 AM_COND_IF([ENABLE_KUBERNETES], [build_kubernetes=yes], [build_kubernetes=no])
 AM_COND_IF([ENABLE_RDP],        [build_rdp=yes],        [build_rdp=no])
+AM_COND_IF([ENABLE_SPICE],      [build_spice=yes],      [build_spice=no])
 AM_COND_IF([ENABLE_SSH],        [build_ssh=yes],        [build_ssh=no])
 AM_COND_IF([ENABLE_TELNET],     [build_telnet=yes],     [build_telnet=no])
 AM_COND_IF([ENABLE_VNC],        [build_vnc=yes],        [build_vnc=no])
@@ -1260,6 +1283,7 @@ $PACKAGE_NAME version $PACKAGE_VERSION
 
       Kubernetes .... ${build_kubernetes}
       RDP ........... ${build_rdp}
+      SPICE ......... ${build_spice}
       SSH ........... ${build_ssh}
       Telnet ........ ${build_telnet}
       VNC ........... ${build_vnc}

src/common-ssh/ssh.c

@@ -22,7 +22,6 @@
 #include "common-ssh/user.h"
 
 #include <guacamole/client.h>
-#include <guacamole/fips.h>
 #include <libssh2.h>
 
 #ifdef LIBSSH2_USES_GCRYPT
@@ -47,20 +46,6 @@
 GCRY_THREAD_OPTION_PTHREAD_IMPL;
 #endif
 
-/**
- * A list of all key exchange algorithms that are both FIPS-compliant, and
- * OpenSSL-supported. Note that "ext-info-c" is also included. While not a key
- * exchange algorithm per se, it must be in the list to ensure that the server
- * will send a SSH_MSG_EXT_INFO response, which is required to perform RSA key
- * upgrades.
- */
-#define FIPS_COMPLIANT_KEX_ALGORITHMS "diffie-hellman-group-exchange-sha256,ext-info-c"
-
-/**
- * A list of ciphers that are both FIPS-compliant, and OpenSSL-supported.
- */
-#define FIPS_COMPLIANT_CIPHERS "aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,aes192-cbc,aes256-cbc"
-
 #ifdef OPENSSL_REQUIRES_THREADING_CALLBACKS
 /**
  * Array of mutexes, used by OpenSSL.
@@ -501,17 +486,6 @@ guac_common_ssh_session* guac_common_ssh_create_session(guac_client* client,
         return NULL;
     }
 
-    /*
-     * If FIPS mode is enabled, prefer only FIPS-compatible algorithms and
-     * ciphers that are also supported by libssh2. For more info, see:
-     * https://csrc.nist.gov/CSRC/media/projects/cryptographic-module-validation-program/documents/security-policies/140sp2906.pdf
-     */
-    if (guac_fips_enabled()) {
-        libssh2_session_method_pref(session, LIBSSH2_METHOD_KEX, FIPS_COMPLIANT_KEX_ALGORITHMS);
-        libssh2_session_method_pref(session, LIBSSH2_METHOD_CRYPT_CS, FIPS_COMPLIANT_CIPHERS);
-        libssh2_session_method_pref(session, LIBSSH2_METHOD_CRYPT_SC, FIPS_COMPLIANT_CIPHERS);
-    }
-
     /* Perform handshake */
     if (libssh2_session_handshake(session, fd)) {
         guac_client_abort(client, GUAC_PROTOCOL_STATUS_UPSTREAM_ERROR,

src/common/display.c

@@ -166,8 +166,6 @@ void guac_common_display_free(guac_common_display* display) {
 void guac_common_display_dup(guac_common_display* display, guac_user* user,
         guac_socket* socket) {
 
-    guac_client* client = user->client;
-
     pthread_mutex_lock(&display->_lock);
 
     /* Sunchronize shared cursor */
@@ -180,9 +178,6 @@ void guac_common_display_dup(guac_common_display* display, guac_user* user,
     guac_common_display_dup_layers(display->layers, user, socket);
     guac_common_display_dup_layers(display->buffers, user, socket);
 
-    /* Sends a sync instruction to mark the boundary of the first frame */
-    guac_protocol_send_sync(socket, client->last_sent_timestamp, 1);
-
     pthread_mutex_unlock(&display->_lock);
 
 }
@@ -389,3 +384,4 @@ void guac_common_display_free_buffer(guac_common_display* display,
     pthread_mutex_unlock(&display->_lock);
 
 }
+

src/guacenc/ffmpeg-compat.c

@@ -213,7 +213,7 @@ int guacenc_avcodec_encode_video(guacenc_video* video, AVFrame* frame) {
 #endif
 }
 
-AVCodecContext* guacenc_build_avcodeccontext(AVStream* stream, const AVCodec* codec,
+AVCodecContext* guacenc_build_avcodeccontext(AVStream* stream, AVCodec* codec, 
         int bitrate, int width, int height, int gop_size, int qmax, int qmin,
         int pix_fmt, AVRational time_base) {
 
@@ -249,7 +249,7 @@ AVCodecContext* guacenc_build_avcodeccontext(AVStream* stream, const AVCodec* co
 }
 
 int guacenc_open_avcodec(AVCodecContext *avcodec_context,
-        const AVCodec *codec, AVDictionary **options,
+        AVCodec *codec, AVDictionary **options,
         AVStream* stream) {
 
     int ret = avcodec_open2(avcodec_context, codec, options);

src/guacenc/ffmpeg-compat.h

@@ -128,7 +128,7 @@ int guacenc_avcodec_encode_video(guacenc_video* video, AVFrame* frame);
  *     The pointer to the configured AVCodecContext.
  *
  */
-AVCodecContext* guacenc_build_avcodeccontext(AVStream* stream, const AVCodec* codec,
+AVCodecContext* guacenc_build_avcodeccontext(AVStream* stream, AVCodec* codec,
         int bitrate, int width, int height, int gop_size, int qmax, int qmin,
         int pix_fmt, AVRational time_base);
 
@@ -158,7 +158,7 @@ AVCodecContext* guacenc_build_avcodeccontext(AVStream* stream, const AVCodec* co
  *     Zero on success, a negative value on error.
  */
 int guacenc_open_avcodec(AVCodecContext *avcodec_context,
-        const AVCodec *codec, AVDictionary **options,
+        AVCodec *codec, AVDictionary **options,
         AVStream* stream);
 
 #endif

src/guacenc/video.c

@@ -47,7 +47,7 @@
 guacenc_video* guacenc_video_alloc(const char* path, const char* codec_name,
         int width, int height, int bitrate) {
 
-    const AVOutputFormat *container_format;
+    AVOutputFormat *container_format;
     AVFormatContext *container_format_context;
     AVStream *video_stream;
     int ret;
@@ -63,7 +63,7 @@ guacenc_video* guacenc_video_alloc(const char* path, const char* codec_name,
     container_format = container_format_context->oformat;
 
     /* Pull codec based on name */
-    const AVCodec* codec = avcodec_find_encoder_by_name(codec_name);
+    AVCodec* codec = avcodec_find_encoder_by_name(codec_name);
     if (codec == NULL) {
         guacenc_log(GUAC_LOG_ERROR, "Failed to locate codec \"%s\".",
                 codec_name);

src/libguac/Makefile.am

@@ -44,7 +44,6 @@ libguacinc_HEADERS =                  \
     guacamole/client-types.h          \
     guacamole/error.h                 \
     guacamole/error-types.h           \
-    guacamole/fips.h                  \
     guacamole/hash.h                  \
     guacamole/layer.h                 \
     guacamole/layer-types.h           \
@@ -94,7 +93,6 @@ libguac_la_SOURCES =   \
     encode-jpeg.c      \
     encode-png.c       \
     error.c            \
-    fips.c             \
     hash.c             \
     id.c               \
     palette.c          \
@@ -102,7 +100,7 @@ libguac_la_SOURCES =   \
     pool.c             \
     protocol.c         \
     raw_encoder.c      \
-    recording.c        \
+    recording.c             \
     socket.c           \
     socket-broadcast.c \
     socket-fd.c        \
@@ -139,7 +137,7 @@ libguac_la_CFLAGS = \
     -Werror -Wall -pedantic
 
 libguac_la_LDFLAGS =     \
-    -version-info 21:0:0 \
+    -version-info 20:0:0 \
     -no-undefined        \
     @CAIRO_LIBS@         \
     @DL_LIBS@            \

src/libguac/client.c

@@ -307,10 +307,6 @@ int guac_client_add_user(guac_client* client, guac_user* user, int argc, char**
 
     pthread_rwlock_unlock(&(client->__users_lock));
 
-    /* Notify owner of user joining connection. */
-    if (retval == 0 && !user->owner)
-        guac_client_owner_notify_join(client, user);
-
     return retval;
 
 }
@@ -337,10 +333,6 @@ void guac_client_remove_user(guac_client* client, guac_user* user) {
 
     pthread_rwlock_unlock(&(client->__users_lock));
 
-    /* Update owner of user having left the connection. */
-    if (!user->owner)
-        guac_client_owner_notify_leave(client, user);
-
     /* Call handler, if defined */
     if (user->leave_handler)
         user->leave_handler(user);
@@ -683,36 +675,6 @@ static void* __webp_support_callback(guac_user* user, void* data) {
 }
 #endif
 
-/**
- * A callback function which is invoked by guac_client_owner_supports_msg()
- * to determine if the owner of a client supports the "msg" instruction,
- * returning zero if the user does not support the instruction or non-zero if
- * the user supports it.
- * 
- * @param user
- *     The guac_user that will be checked for "msg" instruction support.
- * 
- * @param data
- *     Data provided to the callback. This value is never used within this
- *     callback.
- * 
- * @return
- *     A non-zero integer if the provided user who owns the connection supports
- *     the "msg" instruction, or zero if the user does not. The integer is cast
- *     as a void*.
- */
-static void* guac_owner_supports_msg_callback(guac_user* user, void* data) {
-
-    return (void*) ((intptr_t) guac_user_supports_msg(user));
-
-}
-
-int guac_client_owner_supports_msg(guac_client* client) {
-
-    return (int) ((intptr_t) guac_client_for_owner(client, guac_owner_supports_msg_callback, NULL));
-
-}
-
 /**
  * A callback function which is invoked by guac_client_owner_supports_required()
  * to determine if the owner of a client supports the "required" instruction,
@@ -743,124 +705,6 @@ int guac_client_owner_supports_required(guac_client* client) {
     
 }
 
-/**
- * A callback function that is invokved by guac_client_owner_notify_join() to
- * notify the owner of a connection that another user has joined the
- * connection, returning zero if the message is sent successfully, or non-zero
- * if an error occurs.
- *
- * @param user
- *     The user to send the notification to, which will be the owner of the
- *     connection.
- *
- * @param data
- *     The data provided to the callback, which is the user that is joining the
- *     connection.
- *
- * @return
- *     Zero if the message is sent successfully to the owner, otherwise
- *     non-zero, cast as a void*.
- */
-static void* guac_client_owner_notify_join_callback(guac_user* user, void* data) {
-
-    const guac_user* joiner = (const guac_user *) data;
-
-    if (user == NULL)
-        return (void*) ((intptr_t) -1);
-
-    char* log_owner = "owner";
-    if (user->info.name != NULL)
-        log_owner = (char *) user->info.name;
-
-    char* log_joiner = "anonymous";
-    char* send_joiner = "";
-    if (joiner->info.name != NULL) {
-        log_joiner = (char *) joiner->info.name;
-        send_joiner = (char *) joiner->info.name;
-    }
-
-    guac_user_log(user, GUAC_LOG_DEBUG, "Notifying owner \"%s\" of \"%s\" joining.",
-            log_owner, log_joiner);
-    
-    /* Send user joined notification to owner. */
-    const char* args[] = { (const char*)joiner->user_id, (const char*)send_joiner, NULL };
-    return (void*) ((intptr_t) guac_protocol_send_msg(user->socket, GUAC_MESSAGE_USER_JOINED, args));
-
-}
-
-int guac_client_owner_notify_join(guac_client* client, guac_user* joiner) {
-
-    /* Don't send msg instruction if client does not support it. */
-    if (!guac_client_owner_supports_msg(client)) {
-        guac_client_log(client, GUAC_LOG_DEBUG,
-                        "Client does not support the \"msg\" instruction and "
-                        "will not be notified of the user joining the connection.");
-        return -1;
-    }
-
-    return (int) ((intptr_t) guac_client_for_owner(client, guac_client_owner_notify_join_callback, joiner));
-
-}
-
-/**
- * A callback function that is invokved by guac_client_owner_notify_leave() to
- * notify the owner of a connection that another user has left the connection,
- * returning zero if the message is sent successfully, or non-zero
- * if an error occurs.
- *
- * @param user
- *     The user to send the notification to, which will be the owner of the
- *     connection.
- *
- * @param data
- *     The data provided to the callback, which is the user that is leaving the
- *     connection.
- *
- * @return
- *     Zero if the message is sent successfully to the owner, otherwise
- *     non-zero, cast as a void*.
- */
-static void* guac_client_owner_notify_leave_callback(guac_user* user, void* data) {
-
-    const guac_user* quitter = (const guac_user *) data;
-
-    if (user == NULL)
-        return (void*) ((intptr_t) -1);
-
-    char* log_owner = "owner";
-    if (user->info.name != NULL)
-        log_owner = (char *) user->info.name;
-
-    char* log_quitter = "anonymous";
-    char* send_quitter = "";
-    if (quitter->info.name != NULL) {
-        log_quitter = (char *) quitter->info.name;
-        send_quitter = (char *) quitter->info.name;
-    }
-
-    guac_user_log(user, GUAC_LOG_DEBUG, "Notifying owner \"%s\" of \"%s\" leaving.",
-            log_owner, log_quitter);
-    
-    /* Send user left notification to owner. */
-    const char* args[] = { (const char*)quitter->user_id, (const char*)send_quitter, NULL };
-    return (void*) ((intptr_t) guac_protocol_send_msg(user->socket, GUAC_MESSAGE_USER_LEFT, args));
-
-}
-
-int guac_client_owner_notify_leave(guac_client* client, guac_user* quitter) {
-
-    /* Don't send msg instruction if client does not support it. */
-    if (!guac_client_owner_supports_msg(client)) {
-        guac_client_log(client, GUAC_LOG_DEBUG,
-                        "Client does not support the \"msg\" instruction and "
-                        "will not be notified of the user leaving the connection.");
-        return -1;
-    }
-
-    return (int) ((intptr_t) guac_client_for_owner(client, guac_client_owner_notify_leave_callback, quitter));
-
-}
-
 int guac_client_supports_webp(guac_client* client) {
 
 #ifdef ENABLE_WEBP

src/libguac/fips.c

@@ -1,51 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-#include "config.h"
-#include "guacamole/fips.h"
-
-/* If OpenSSL is available, include header for version numbers */
-#ifdef ENABLE_SSL
-    #include <openssl/opensslv.h>
-
-    /* OpenSSL versions prior to 0.9.7e did not have FIPS support */
-    #if !defined(OPENSSL_VERSION_NUMBER) || (OPENSSL_VERSION_NUMBER < 0x00090705f)
-    #define GUAC_FIPS_ENABLED 0
-
-    /* OpenSSL 3+ uses EVP_default_properties_is_fips_enabled() */
-    #elif defined(OPENSSL_VERSION_MAJOR) && (OPENSSL_VERSION_MAJOR >= 3)
-    #include <openssl/evp.h>
-    #define GUAC_FIPS_ENABLED EVP_default_properties_is_fips_enabled(NULL)
-
-    /* For OpenSSL versions between 0.9.7e and 3.0, use FIPS_mode() */
-    #else
-    #include <openssl/crypto.h>
-    #define GUAC_FIPS_ENABLED FIPS_mode()
-    #endif
-
-/* FIPS support does not exist if OpenSSL is not available. */
-#else
-#define GUAC_FIPS_ENABLED 0
-#endif
-
-int guac_fips_enabled() {
-
-    return GUAC_FIPS_ENABLED;
-
-}

src/libguac/guacamole/client.h

@@ -737,21 +737,6 @@ void guac_client_stream_webp(guac_client* client, guac_socket* socket,
         guac_composite_mode mode, const guac_layer* layer, int x, int y,
         cairo_surface_t* surface, int quality, int lossless);
 
-/**
- * Returns whether the owner of the given client supports the "msg"
- * instruction, returning non-zero if the client owner does support the
- * instruction, or zero if the owner does not.
- * 
- * @param client
- *     The Guacamole client whose owner should be checked for supporting
- *     the "msg" instruction.
- * 
- * @return 
- *     Non-zero if the owner of the given client supports the "msg"
- *     instruction, zero otherwise.
- */
-int guac_client_owner_supports_msg(guac_client* client);
-
 /**
  * Returns whether the owner of the given client supports the "required"
  * instruction, returning non-zero if the client owner does support the
@@ -767,42 +752,6 @@ int guac_client_owner_supports_msg(guac_client* client);
  */
 int guac_client_owner_supports_required(guac_client* client);
 
-/**
- * Notifies the owner of the given client that a user has joined the connection,
- * and returns zero if the message was sent successfully, or non-zero if the
- * notification failed.
- *
- * @param client
- *     The Guacamole Client whose owner should be notified of a user joining
- *     the connection.
- *
- * @param joiner
- *     The Guacamole User who joined the connection.
- * 
- * @return
- *     Zero if the notification to the owner was sent successfully, or non-zero
- *     if an error occurred.
- */
-int guac_client_owner_notify_join(guac_client* client, guac_user* joiner);
-
-/**
- * Notifies the owner of the given client that a user has left the connection,
- * and returns zero if the message was sent successfully, or non-zero if the
- * notification failed.
- *
- * @param client
- *     The Guacamole Client whose owner should be notified of a user leaving
- *     the connection.
- *
- * @param quitter
- *     The Guacamole User who left the connection.
- * 
- * @return
- *     Zero if the notification to the owner was sent successfully, or non-zero
- *     if an error occurred.
- */
-int guac_client_owner_notify_leave(guac_client* client, guac_user* quitter);
-
 /**
  * Returns whether all users of the given client support WebP. If any user does
  * not support WebP, or the server cannot encode WebP images, zero is returned.

src/libguac/guacamole/protocol-constants.h

@@ -38,7 +38,7 @@
  * This version is passed by the __guac_protocol_send_args() function from the
  * server to the client during the client/server handshake.
  */
-#define GUACAMOLE_PROTOCOL_VERSION "VERSION_1_5_0"
+#define GUACAMOLE_PROTOCOL_VERSION "VERSION_1_3_0"
 
 /**
  * The maximum number of bytes that should be sent in any one blob instruction

src/libguac/guacamole/protocol-types.h

@@ -306,40 +306,9 @@ typedef enum guac_protocol_version {
      * allowing connections in guacd to request information from the client and
      * await a response.
      */
-    GUAC_PROTOCOL_VERSION_1_3_0 = 0x010300,
+    GUAC_PROTOCOL_VERSION_1_3_0 = 0x010300
-
-    /**
-     * Protocol version 1.5.0, which supports the "msg" instruction, allowing
-     * messages to be sent to the client, and adds support for the "name"
-     * handshake instruction.
-     */
-    GUAC_PROTOCOL_VERSION_1_5_0 = 0x010500
 
 } guac_protocol_version;
 
-/**
- * A type that represents codes for human-readable messages sent by the "msg"
- * instruction to the Client, that will be displayed in the client's browser.
- * The codes will be interpreted by the client into translatable messages, and
- * make take arguments, as noted below.
- */
-typedef enum guac_message_type {
-
-    /**
-     * A message that notifies the owner of a connection that another user has
-     * joined their connection. There should be a single argument provided, the
-     * name of the user who has joined.
-     */
-    GUAC_MESSAGE_USER_JOINED = 0x0001,
-
-    /**
-     * A message that notifies the owner of a connection that another user has
-     * left their connection. There should be a single argument provided, the
-     * name of the user who has left.
-     */
-    GUAC_MESSAGE_USER_LEFT = 0x0002
-
-} guac_message_type;
-
 #endif
 

src/libguac/guacamole/protocol.h

@@ -171,27 +171,6 @@ int guac_protocol_send_log(guac_socket* socket, const char* format, ...);
 int vguac_protocol_send_log(guac_socket* socket, const char* format,
         va_list args);
 
-/**
- * Sends the given string over the socket to be displayed on the client. Returns
- * zero if the message was sent successfully or non-zero if an error occurs.
- *
- * @param socket
- *     The guac_socket connection to send the message to.
- *
- * @param msg
- *     The message code to send to the client.
- *
- * @param args
- *     A null-terminated array of strings that will be provided to the client
- *     as part of the message, that the client may then place in the message,
- *     or null if the message requires no arguments.
- *
- * @return
- *     Zero if the message is sent successfully; otherwise non-zero.
- */
-int guac_protocol_send_msg(guac_socket* socket, guac_message_type msg,
-        const char** args);
-
 /**
  * Sends a mouse instruction over the given guac_socket connection.
  *

src/libguac/guacamole/user.h

@@ -88,7 +88,7 @@ struct guac_user_info {
      * stated resolution of the display size request is recommended.
      */
     int optimal_resolution;
-
+    
     /**
      * The timezone of the remote system.  If the client does not provide
      * a specific timezone then this will be NULL.  The format of the timezone
@@ -102,14 +102,6 @@ struct guac_user_info {
      */
     guac_protocol_version protocol_version;
 
-    /**
-     * The human-readable name of the Guacamole user, supplied by the client
-     * during the handshake. This is an arbitrary value, with no requirements or
-     * constraints, including that it need not uniquely identify the user.
-     * If the client does not provide a name then this will be NULL.
-     */
-    const char* name;
-
 };
 
 struct guac_user {
@@ -858,17 +850,6 @@ void guac_user_stream_webp(guac_user* user, guac_socket* socket,
         guac_composite_mode mode, const guac_layer* layer, int x, int y,
         cairo_surface_t* surface, int quality, int lossless);
 
-/**
- * Returns whether the given user supports the "msg" instruction.
- * 
- * @param user
- *     The Guacamole user to check for support of the "msg" instruction.
- * 
- * @return 
- *     Non-zero if the user supports the "msg" instruction, otherwise zero.
- */
-int guac_user_supports_msg(guac_user* user);
-
 /**
  * Returns whether the given user supports the "required" instruction.
  * 

src/libguac/protocol.c

@@ -65,7 +65,6 @@ guac_protocol_version_mapping guac_protocol_version_table[] = {
     { GUAC_PROTOCOL_VERSION_1_0_0,   "VERSION_1_0_0" },
     { GUAC_PROTOCOL_VERSION_1_1_0,   "VERSION_1_1_0" },
     { GUAC_PROTOCOL_VERSION_1_3_0,   "VERSION_1_3_0" },
-    { GUAC_PROTOCOL_VERSION_1_5_0,   "VERSION_1_5_0" },
     { GUAC_PROTOCOL_VERSION_UNKNOWN, NULL }
 };
 
@@ -659,23 +658,6 @@ int guac_protocol_send_log(guac_socket* socket, const char* format, ...) {
 
 }
 
-int guac_protocol_send_msg(guac_socket* socket, guac_message_type msg,
-        const char** args) {
-
-    int ret_val;
-
-    guac_socket_instruction_begin(socket);
-    ret_val =
-           guac_socket_write_string(socket, "3.msg,")
-        || __guac_socket_write_length_int(socket, msg)
-        || guac_socket_write_array(socket, args)
-        || guac_socket_write_string(socket, ";");
-
-    guac_socket_instruction_end(socket);
-    return ret_val;
-
-}
-
 int guac_protocol_send_file(guac_socket* socket, const guac_stream* stream,
         const char* mimetype, const char* name) {
 

src/libguac/tests/protocol/guac_protocol_version.c

@@ -27,11 +27,11 @@
  */
 void test_guac_protocol__version_to_string() {
     
-    guac_protocol_version version_a = GUAC_PROTOCOL_VERSION_1_5_0;
+    guac_protocol_version version_a = GUAC_PROTOCOL_VERSION_1_3_0;
     guac_protocol_version version_b = GUAC_PROTOCOL_VERSION_1_0_0;
     guac_protocol_version version_c = GUAC_PROTOCOL_VERSION_UNKNOWN;
     
-    CU_ASSERT_STRING_EQUAL(guac_protocol_version_to_string(version_a), "VERSION_1_5_0");
+    CU_ASSERT_STRING_EQUAL(guac_protocol_version_to_string(version_a), "VERSION_1_3_0");
     CU_ASSERT_STRING_EQUAL(guac_protocol_version_to_string(version_b), "VERSION_1_0_0");
     CU_ASSERT_PTR_NULL(guac_protocol_version_to_string(version_c));
     

src/libguac/user-handlers.c

@@ -64,7 +64,6 @@ __guac_instruction_handler_mapping __guac_handshake_handler_map[] = {
     {"video",    __guac_handshake_video_handler},
     {"image",    __guac_handshake_image_handler},
     {"timezone", __guac_handshake_timezone_handler},
-    {"name",     __guac_handshake_name_handler},
     {NULL,       NULL}
 };
 
@@ -685,23 +684,6 @@ int __guac_handshake_image_handler(guac_user* user, int argc, char** argv) {
     
 }
 
-int __guac_handshake_name_handler(guac_user* user, int argc, char** argv) {
-
-    /* Free any past value for the user's name */
-    free((char *) user->info.name);
-
-    /* If a value is provided for the name, copy it into guac_user. */
-    if (argc > 0 && strcmp(argv[0], ""))
-        user->info.name = (const char*) strdup(argv[0]);
-
-    /* No or empty value was provided, so make sure this is NULLed out. */
-    else
-        user->info.name = NULL;
-
-    return 0;
-
-}
-
 int __guac_handshake_timezone_handler(guac_user* user, int argc, char** argv) {
     
     /* Free any past value */

src/libguac/user-handlers.h

@@ -218,13 +218,6 @@ __guac_instruction_handler __guac_handshake_video_handler;
  */
 __guac_instruction_handler __guac_handshake_image_handler;
 
-/**
- * Internal handler function that is called when the name instruction is
- * received during the handshake process, specifying the name of the Guacamole
- * user establishing the connection.
- */
-__guac_instruction_handler __guac_handshake_name_handler;
-
 /**
  * Internal handler function that is called when the timezone instruction is
  * received during the handshake process, specifying the timezone of the

src/libguac/user-handshake.c

@@ -296,7 +296,6 @@ int guac_user_handle_connection(guac_user* user, int usec_timeout) {
     user->info.audio_mimetypes = NULL;
     user->info.image_mimetypes = NULL;
     user->info.video_mimetypes = NULL;
-    user->info.name = NULL;
     user->info.timezone = NULL;
     
     /* Count number of arguments. */
@@ -371,8 +370,7 @@ int guac_user_handle_connection(guac_user* user, int usec_timeout) {
     guac_free_mimetypes((char **) user->info.image_mimetypes);
     guac_free_mimetypes((char **) user->info.video_mimetypes);
     
-    /* Free name and timezone info. */
+    /* Free timezone info. */
-    free((char *) user->info.name);
     free((char *) user->info.timezone);
     
     guac_parser_free(parser);

src/libguac/user.c

@@ -316,15 +316,6 @@ void guac_user_stream_webp(guac_user* user, guac_socket* socket,
 
 }
 
-int guac_user_supports_msg(guac_user* user) {
-
-    if (user == NULL)
-        return 0;
-
-    return (user->info.protocol_version >= GUAC_PROTOCOL_VERSION_1_5_0);
-
-}
-
 int guac_user_supports_required(guac_user* user) {
     
     if (user == NULL)

src/protocols/rdp/Makefile.am

@@ -230,7 +230,6 @@ BUILT_SOURCES =                         \
 rdp_keymaps =                                \
     $(srcdir)/keymaps/base.keymap            \
     $(srcdir)/keymaps/failsafe.keymap        \
-    $(srcdir)/keymaps/cs-cz-qwertz.keymap    \
     $(srcdir)/keymaps/de_de_qwertz.keymap    \
     $(srcdir)/keymaps/de_ch_qwertz.keymap    \
     $(srcdir)/keymaps/en_gb_qwerty.keymap    \

src/protocols/rdp/keymaps/cs-cz-qwertz.keymap

@@ -1,79 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
-#
-
-parent  "base"
-name    "cs-cz-qwertz"
-freerdp "KBD_CZECH"
-
-#
-# Basic keys
-#
-
-map -caps -altgr -shift 0x29 0x02..0x0D      ~ ";+ěščřžýáíé=´"
-map -caps -altgr -shift      0x10..0x1B      ~ "qwertzuıopú)"
-map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjklů§¨"
-map -caps -altgr -shift      0x2C..0x35      ~ "yxcvbnm,.-"
-
-map -caps -altgr +shift 0x29 0x02..0x0D      ~ "°1234567890%ˇ"
-map -caps -altgr +shift      0x10..0x1B      ~ "QWERTZUIOP/("
-map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKL"!'"
-map -caps -altgr +shift      0x2C..0x35      ~ "YXCVBNM?:_"
-
-map +caps -altgr -shift 0x29 0x02..0x0D      ~ ";+ĚŠČŘŽÝÁÍÉ=´"
-map +caps -altgr -shift      0x10..0x1B      ~ "QWERTZUIOPÚ)"
-map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKL٧¨"
-map +caps -altgr -shift      0x2C..0x35      ~ "YXCVBNM,.-"
-
-map +caps -altgr +shift 0x29 0x02..0x0D      ~ "°1234567890%ˇ"
-map +caps -altgr +shift      0x10..0x1B      ~ "qwertzuiop/("
-map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjkl"!'"
-map +caps -altgr +shift      0x2C..0x35      ~ "yxcvbnm?:_"
-
-#
-# Keys requiring AltGr
-#
-
-map +altgr -shift 0x02 ~ "~"
-
-map +altgr -shift 0x10 ~ "\"
-map +altgr -shift 0x11 ~ "|"
-map +altgr -shift 0x12 ~ "€"
-map +altgr -shift 0x1A ~ "÷"
-map +altgr -shift 0x1B ~ "×"
-
-map +altgr -shift 0x1F ~ "đ"
-map +altgr -shift 0x20 ~ "Đ"
-map +altgr -shift 0x21 ~ "["
-map +altgr -shift 0x22 ~ "]"
-map +altgr -shift 0x25 ~ "ł"
-map +altgr -shift 0x26 ~ "Ł"
-map +altgr -shift 0x27 ~ "$"
-map +altgr -shift 0x28 ~ "ß"
-map +altgr -shift 0x2B ~ "¤"
-
-map +altgr -shift 0x2D ~ "#"
-map +altgr -shift 0x2E ~ "&"
-map +altgr -shift 0x2F ~ "@"
-map +altgr -shift 0x30 ~ "{"
-map +altgr -shift 0x31 ~ "}"
-map +altgr -shift 0x33 ~ "<"
-map +altgr -shift 0x34 ~ ">"
-map +altgr -shift 0x35 ~ "*"
-
-# END

src/protocols/rdp/settings.c

@@ -28,7 +28,6 @@
 #include <freerdp/settings.h>
 #include <freerdp/freerdp.h>
 #include <guacamole/client.h>
-#include <guacamole/fips.h>
 #include <guacamole/string.h>
 #include <guacamole/user.h>
 #include <guacamole/wol-constants.h>
@@ -40,16 +39,6 @@
 #include <stdlib.h>
 #include <string.h>
 
-/**
- * A warning to log when NLA mode is selected while FIPS mode is active on the
- * guacd server.
- */
-const char fips_nla_mode_warning[] = (
-        "NLA security mode was selected, but is known to be currently incompatible "
-        "with FIPS mode (see FreeRDP/FreeRDP#3412). Security negotiation with the "
-        "RDP server may fail unless TLS security mode is selected instead."
-);
-
 /* Client plugin arguments */
 const char* GUAC_RDP_CLIENT_ARGS[] = {
     "hostname",
@@ -717,27 +706,12 @@ guac_rdp_settings* guac_rdp_parse_args(guac_user* user,
     if (strcmp(argv[IDX_SECURITY], "nla") == 0) {
         guac_user_log(user, GUAC_LOG_INFO, "Security mode: NLA");
         settings->security_mode = GUAC_SECURITY_NLA;
-
-        /*
-         * NLA is known not to work with FIPS; allow the mode selection but
-         * warn that it will not work.
-         */
-        if (guac_fips_enabled())
-            guac_user_log(user, GUAC_LOG_WARNING, fips_nla_mode_warning);
-
     }
 
     /* Extended NLA security */
     else if (strcmp(argv[IDX_SECURITY], "nla-ext") == 0) {
         guac_user_log(user, GUAC_LOG_INFO, "Security mode: Extended NLA");
         settings->security_mode = GUAC_SECURITY_EXTENDED_NLA;
-
-        /*
-         * NLA is known not to work with FIPS; allow the mode selection but
-         * warn that it will not work.
-         */
-        if (guac_fips_enabled())
-            guac_user_log(user, GUAC_LOG_WARNING, fips_nla_mode_warning);
     }
 
     /* TLS security */
@@ -1555,21 +1529,7 @@ void guac_rdp_push_settings(guac_client* client,
         case GUAC_SECURITY_ANY:
             rdp_settings->RdpSecurity = TRUE;
             rdp_settings->TlsSecurity = TRUE;
-
+            rdp_settings->NlaSecurity = guac_settings->username && guac_settings->password;
-            /* Explicitly disable NLA if FIPS mode is enabled - it won't work */
-            if (guac_fips_enabled()) {
-
-                guac_client_log(client, GUAC_LOG_INFO,
-                        "FIPS mode is enabled. Excluding NLA security mode from security negotiation "
-                        "(see: https://github.com/FreeRDP/FreeRDP/issues/3412).");
-                rdp_settings->NlaSecurity = FALSE;
-
-            }
-
-            /* NLA mode is allowed if FIPS is not enabled */
-            else
-                rdp_settings->NlaSecurity = TRUE;
-
             rdp_settings->ExtSecurity = FALSE;
             break;
 

src/protocols/spice/Makefile.am

@@ -0,0 +1,139 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+# NOTE: Parts of this file (Makefile.am) are automatically transcluded verbatim
+# into Makefile.in. Though the build system (GNU Autotools) automatically adds
+# its own license boilerplate to the generated Makefile.in, that boilerplate
+# does not apply to the transcluded portions of Makefile.am which are licensed
+# to you by the ASF under the Apache License, Version 2.0, as described above.
+#
+
+AUTOMAKE_OPTIONS = foreign
+ACLOCAL_AMFLAGS = -I m4
+
+lib_LTLIBRARIES = libguac-client-spice.la
+
+nodist_libguac_client_spice_la_SOURCES =  \
+    _generated_keymaps.c
+
+libguac_client_spice_la_SOURCES = \
+    argv.c                        \
+    auth.c                        \
+    channels/audio.c              \
+    channels/clipboard.c          \
+    channels/cursor.c             \
+    channels/display.c            \
+    channels/file.c               \
+    channels/file-download.c      \
+    channels/file-ls.c            \
+    channels/file-upload.c        \
+    client.c                      \
+    decompose.c                   \
+    input.c                       \
+    keyboard.c                    \
+    keymap.c                      \
+    log.c                         \
+    settings.c                    \
+    spice.c                       \
+    user.c                      
+    
+noinst_HEADERS =             \
+    argv.h                   \
+    auth.h                   \
+    channels/audio.h         \
+    channels/clipboard.h     \
+    channels/cursor.h        \
+    channels/display.h       \
+    channels/file.h          \
+    channels/file-download.h \
+    channels/file-ls.h       \
+    channels/file-upload.h   \
+    client.h                 \
+    decompose.h              \
+    input.h                  \
+    keyboard.h               \
+    keymap.h                 \
+    log.h                    \
+    settings.h               \
+    spice.h                  \
+    user.h            
+
+libguac_client_spice_la_CFLAGS =      \
+    -Werror -Wall -pedantic -Iinclude \
+    @COMMON_INCLUDE@                  \
+    @COMMON_SSH_INCLUDE@              \
+    @LIBGUAC_INCLUDE@                 \
+    @GLIB2_CFLAGS@                    \
+    @SPICE_CFLAGS@
+
+libguac_client_spice_la_LDFLAGS = \
+    -version-info 0:0:0           \
+    @CAIRO_LIBS@                  \
+    @GLIB2_LIBS@                  \
+    @SPICE_LIBS@
+
+libguac_client_spice_la_LIBADD = \
+    @COMMON_LTLIB@               \
+    @LIBGUAC_LTLIB@
+
+# Optional SFTP support
+if ENABLE_COMMON_SSH
+libguac_client_spice_la_SOURCES += sftp.c
+noinst_HEADERS                  += sftp.h
+libguac_client_spice_la_LIBADD  += @COMMON_SSH_LTLIB@
+endif
+
+#
+# Autogenerated keymaps and channel wrapper functions
+#
+
+CLEANFILES =              \
+    _generated_keymaps.c
+
+BUILT_SOURCES =           \
+    _generated_keymaps.c
+
+spice_keymaps =                              \
+    $(srcdir)/keymaps/base.keymap            \
+    $(srcdir)/keymaps/failsafe.keymap        \
+    $(srcdir)/keymaps/de_de_qwertz.keymap    \
+    $(srcdir)/keymaps/de_ch_qwertz.keymap    \
+    $(srcdir)/keymaps/en_gb_qwerty.keymap    \
+    $(srcdir)/keymaps/en_us_qwerty.keymap    \
+    $(srcdir)/keymaps/es_es_qwerty.keymap    \
+    $(srcdir)/keymaps/es_latam_qwerty.keymap \
+    $(srcdir)/keymaps/fr_be_azerty.keymap    \
+    $(srcdir)/keymaps/fr_ca_qwerty.keymap    \
+    $(srcdir)/keymaps/fr_ch_qwertz.keymap    \
+    $(srcdir)/keymaps/fr_fr_azerty.keymap    \
+    $(srcdir)/keymaps/hu_hu_qwertz.keymap    \
+    $(srcdir)/keymaps/it_it_qwerty.keymap    \
+    $(srcdir)/keymaps/ja_jp_qwerty.keymap    \
+    $(srcdir)/keymaps/no_no_qwerty.keymap    \
+    $(srcdir)/keymaps/pl_pl_qwerty.keymap    \
+    $(srcdir)/keymaps/pt_br_qwerty.keymap    \
+    $(srcdir)/keymaps/sv_se_qwerty.keymap    \
+    $(srcdir)/keymaps/da_dk_qwerty.keymap    \
+    $(srcdir)/keymaps/tr_tr_qwerty.keymap
+
+_generated_keymaps.c: $(spice_keymaps) $(srcdir)/keymaps/generate.pl
+	$(AM_V_GEN) $(srcdir)/keymaps/generate.pl $(spice_keymaps)
+
+EXTRA_DIST =                           \
+    $(spice_keymaps)                   \
+    keymaps/generate.pl

src/protocols/spice/argv.c

@@ -0,0 +1,53 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+#include "argv.h"
+#include "spice.h"
+
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <guacamole/user.h>
+
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+
+int guac_spice_argv_callback(guac_user* user, const char* mimetype,
+        const char* name, const char* value, void* data) {
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_spice_settings* settings = spice_client->settings;
+
+    /* Update username */
+    if (strcmp(name, GUAC_SPICE_ARGV_USERNAME) == 0) {
+        free(settings->username);
+        settings->username = strdup(value);
+    }
+    
+    /* Update password */
+    else if (strcmp(name, GUAC_SPICE_ARGV_PASSWORD) == 0) {
+        free(settings->password);
+        settings->password = strdup(value);
+    }
+
+    return 0;
+
+}

src/protocols/spice/argv.h

@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_ARGV_H
+#define GUAC_SPICE_ARGV_H
+
+#include "config.h"
+
+#include <guacamole/argv.h>
+#include <guacamole/user.h>
+
+/**
+ * Handles a received argument value from a Guacamole "argv" instruction,
+ * updating the given connection parameter.
+ */
+guac_argv_callback guac_spice_argv_callback;
+
+/**
+ * The name of the parameter Guacamole will use to specify/update the username
+ * for the Spice connection.
+ */
+#define GUAC_SPICE_ARGV_USERNAME "username"
+
+/**
+ * The name of the parameter Guacamole will use to specify/update the password
+ * for the Spice connection.
+ */
+#define GUAC_SPICE_ARGV_PASSWORD "password"
+
+#endif /* GUAC_SPICE_ARGV_H */
+

src/protocols/spice/auth.c

@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "argv.h"
+#include "auth.h"
+#include "spice.h"
+
+#include <guacamole/argv.h>
+#include <guacamole/client.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <guacamole/string.h>
+
+#include <glib-unix.h>
+#include <pthread.h>
+#include <string.h>
+
+gboolean guac_spice_get_credentials(guac_client* client) {
+    
+    guac_spice_client* spice_client = ((guac_spice_client*) client->data);
+    guac_spice_settings* settings = spice_client->settings;
+    
+    char* params[3] = {NULL};
+    int i = 0;
+    
+    /* Check if username is not provided. */
+    if (settings->username == NULL) {
+        guac_argv_register(GUAC_SPICE_ARGV_USERNAME, guac_spice_argv_callback, NULL, 0);
+        params[i] = GUAC_SPICE_ARGV_USERNAME;
+        i++;
+    }
+
+    /* Check if password is not provided. */
+    if (settings->password == NULL) {
+        guac_argv_register(GUAC_SPICE_ARGV_PASSWORD, guac_spice_argv_callback, NULL, 0);
+        params[i] = GUAC_SPICE_ARGV_PASSWORD;
+        i++;
+    }
+
+    params[i] = NULL;
+
+    /* If we have empty parameters, request them and await response. */
+    if (i > 0) {
+        guac_client_owner_send_required(client, (const char**) params);
+        guac_argv_await((const char**) params);
+        return true;
+    }
+    
+    guac_client_log(client, GUAC_LOG_DEBUG,
+            "Unable to retrieve any credentials from the user.");
+    return false;
+    
+}

src/protocols/spice/auth.h

@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_AUTH_H
+#define GUAC_SPICE_AUTH_H
+
+#include "config.h"
+
+#include <guacamole/client.h>
+
+#include <glib-unix.h>
+
+/**
+ * Handler invoked when an authentication error is received from the Spice
+ * server, which retrieves the credentials from the Guacamole Client accessing
+ * the connection, if those credentials have not been explicitly set in the
+ * configuration. Returns TRUE if credentials are successfully retrieved, or
+ * FALSE otherwise.
+ * 
+ * @param client
+ *     The guac_client that is attempting to connect to the Spice server and
+ *     that will be asked for the credentials.
+ * 
+ * @return
+ *     TRUE if the credentials are retrieved from the users; otherwise FALSE.
+ */
+gboolean guac_spice_get_credentials(guac_client* client);
+
+#endif /* GUAC_SPICE_AUTH_H */
+

src/protocols/spice/channels/audio.c

@@ -0,0 +1,360 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "audio.h"
+#include "spice.h"
+
+#include <guacamole/audio.h>
+#include <guacamole/client.h>
+
+#include <errno.h>
+#include <time.h>
+
+void guac_spice_client_audio_playback_data_handler(
+        SpicePlaybackChannel* channel, gpointer data, gint size,
+        guac_client* client) {
+    
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_audio_stream_write_pcm(spice_client->audio_playback, data, size);
+    
+}
+
+void guac_spice_client_audio_playback_delay_handler(
+        SpicePlaybackChannel* channel, guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_WARNING,
+            "Delay handler for audio playback is not currently implemented.");
+    
+}
+
+void guac_spice_client_audio_playback_start_handler(
+        SpicePlaybackChannel* channel, gint format, gint channels, gint rate,
+        guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Starting audio playback.");
+    guac_client_log(client, GUAC_LOG_DEBUG, "Format: %d", format);
+    guac_client_log(client, GUAC_LOG_DEBUG, "Channels: %d", channels);
+    guac_client_log(client, GUAC_LOG_DEBUG, "Rate: %d", rate);
+
+    /* Spice only supports a single audio format. */
+    if (format != SPICE_AUDIO_FMT_S16) {
+        guac_client_log(client, GUAC_LOG_WARNING, "Unknown Spice audio format: %d", format);
+        return;
+    }
+
+    /* Allocate the stream. */
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    spice_client->audio_playback = guac_audio_stream_alloc(client, NULL, rate, channels, 16);
+    
+}
+
+void guac_spice_client_audio_playback_stop_handler(
+        SpicePlaybackChannel* channel, guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Stoppig audio playback..");
+
+    /* Free the audio stream. */
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_audio_stream_free(spice_client->audio_playback);
+    
+}
+
+/**
+ * Parses the given raw audio mimetype, producing the corresponding rate,
+ * number of channels, and bytes per sample.
+ *
+ * @param mimetype
+ *     The raw audio mimetype to parse.
+ *
+ * @param rate
+ *     A pointer to an int where the sample rate for the PCM format described
+ *     by the given mimetype should be stored.
+ *
+ * @param channels
+ *     A pointer to an int where the number of channels used by the PCM format
+ *     described by the given mimetype should be stored.
+ *
+ * @param bps
+ *     A pointer to an int where the number of bytes used the PCM format for
+ *     each sample (independent of number of channels) described by the given
+ *     mimetype should be stored.
+ *
+ * @return
+ *     Zero if the given mimetype is a raw audio mimetype and has been parsed
+ *     successfully, non-zero otherwise.
+ */
+static int guac_spice_audio_parse_mimetype(const char* mimetype, int* rate,
+        int* channels, int* bps) {
+
+    int parsed_rate = -1;
+    int parsed_channels = 1;
+    int parsed_bps;
+
+    /* PCM audio with two bytes per sample */
+    if (strncmp(mimetype, "audio/L16;", 10) == 0) {
+        mimetype += 9; /* Advance to semicolon ONLY */
+        parsed_bps = 2;
+    }
+
+    /* Unsupported mimetype */
+    else
+        return 1;
+
+    /* Parse each parameter name/value pair within the mimetype */
+    do {
+
+        /* Advance to first character of parameter (current is either a
+         * semicolon or a comma) */
+        mimetype++;
+
+        /* Parse number of channels */
+        if (strncmp(mimetype, "channels=", 9) == 0) {
+
+            mimetype += 9;
+            parsed_channels = strtol(mimetype, (char**) &mimetype, 10);
+
+            /* Fail if value invalid / out of range */
+            if (errno == EINVAL || errno == ERANGE)
+                return 1;
+
+        }
+
+        /* Parse number of rate */
+        else if (strncmp(mimetype, "rate=", 5) == 0) {
+
+            mimetype += 5;
+            parsed_rate = strtol(mimetype, (char**) &mimetype, 10);
+
+            /* Fail if value invalid / out of range */
+            if (errno == EINVAL || errno == ERANGE)
+                return 1;
+
+        }
+
+        /* Advance to next parameter */
+        mimetype = strchr(mimetype, ',');
+
+    } while (mimetype != NULL);
+
+    /* Mimetype is invalid if rate was not specified */
+    if (parsed_rate == -1)
+        return 1;
+
+    /* Parse success */
+    *rate = parsed_rate;
+    *channels = parsed_channels;
+    *bps = parsed_bps;
+
+    return 0;
+
+}
+
+/**
+ * A callback function that is invoked to send audio data from the given
+ * stream to the Spice server.
+ *
+ * @param user
+ *     The user who owns the connection and the stream. This is unused by
+ *     this function.
+ *
+ * @param stream
+ *     The stream where the audio data originated. This is unused by this
+ *     function.
+ * 
+ * @param data
+ *     The audio data to send.
+ * 
+ * @param length
+ *     The number of bytes of audio data to send.
+ *
+ * @return
+ *     Zero on success, non-zero on error.
+ */
+static int guac_spice_audio_blob_handler(guac_user* user, guac_stream* stream,
+        void* data, int length) {
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    /* Write blob to audio stream */
+    spice_record_channel_send_data(spice_client->record_channel, data, length, (unsigned long) time(NULL));
+
+    return 0;
+
+}
+
+/**
+ * A callback function that is called when the audio stream ends sending data
+ * to the Spice server.
+ *
+ * @param user
+ *     The user who owns the connection and the stream.
+ *
+ * @param stream
+ *     The stream that was sending the audio data.
+ *
+ * @return
+ *     Zero on success, non-zero on failure.
+ */
+static int guac_spice_audio_end_handler(guac_user* user, guac_stream* stream) {
+
+    /* Ignore - the RECORD_CHANNEL channel will simply not receive anything */
+    return 0;
+
+}
+
+
+int guac_spice_client_audio_record_handler(guac_user* user, guac_stream* stream,
+        char* mimetype) {
+
+    guac_user_log(user, GUAC_LOG_DEBUG, "Calling audio input handler.");
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    spice_client->audio_input = stream;
+
+    int rate;
+    int channels;
+    int bps;
+
+    /* Parse mimetype, abort on parse error */
+    if (guac_spice_audio_parse_mimetype(mimetype, &rate, &channels, &bps)) {
+        guac_user_log(user, GUAC_LOG_WARNING, "Denying user audio stream with "
+                "unsupported mimetype: \"%s\"", mimetype);
+        guac_protocol_send_ack(user->socket, stream, "Unsupported audio "
+                "mimetype", GUAC_PROTOCOL_STATUS_CLIENT_BAD_TYPE);
+        return 0;
+    }
+
+    /* Initialize stream handlers */
+    stream->blob_handler = guac_spice_audio_blob_handler;
+    stream->end_handler = guac_spice_audio_end_handler;
+
+    return 0;
+
+
+}
+
+/**
+ * Sends an "ack" instruction over the socket associated with the Guacamole
+ * stream over which audio data is being received. The "ack" instruction will
+ * only be sent if the Guacamole audio stream has been established (through
+ * receipt of an "audio" instruction), is still open (has not received an "end"
+ * instruction nor been associated with an "ack" having an error code), and is
+ * associated with an active Spice RECORD_CHANNEL channel.
+ *
+ * @param user
+ *     The guac_user associated with the audio input stream.
+ *
+ * @param stream
+ *     The guac_stream associated with the audio input for the client.
+ *
+ * @param message
+ *     An arbitrary human-readable message to send along with the "ack".
+ *
+ * @param status
+ *     The Guacamole protocol status code to send with the "ack". This should
+ *     be GUAC_PROTOCOL_STATUS_SUCCESS if the audio stream has been set up
+ *     successfully or GUAC_PROTOCOL_STATUS_RESOURCE_CLOSED if the audio stream
+ *     has been closed (but may usable again if reopened).
+ */
+static void guac_spice_audio_stream_ack(guac_user* user, guac_stream* stream,
+        const char* message, guac_protocol_status status) {
+
+    /* Do not send if the connection owner or stream is null. */
+    if (user == NULL || stream == NULL)
+        return;
+
+    /* Send ack instruction */
+    guac_protocol_send_ack(user->socket, stream, message, status);
+    guac_socket_flush(user->socket);
+
+}
+
+/**
+ * A callback that is invoked for the connection owner when audio recording
+ * starts, which will notify the client the owner is connected from to start
+ * sending audio data.
+ *
+ * @param owner
+ *     The owner of the connection.
+ *
+ * @param data
+ *     A pointer to the guac_client associated with this connection.
+ *
+ * @return
+ *     Always NULL;
+ */
+static void* spice_client_record_start_callback(guac_user* owner, void* data) {
+    
+    guac_spice_client* spice_client = (guac_spice_client*) data;
+
+    guac_spice_audio_stream_ack(owner, spice_client->audio_input, "OK",
+            GUAC_PROTOCOL_STATUS_SUCCESS);
+
+    return NULL;
+
+}
+
+/**
+ * A callback that is invoked for the connection owner when audio recording
+ * is stopped, telling the client to stop sending audio data.
+ * 
+ * @param owner
+ *     The user who owns this connection.
+ *
+ * @param data
+ *     A pointer to the guac_client associated with this connection.
+ *
+ * @return
+ *     Always NULL;
+ */
+static void* spice_client_record_stop_callback(guac_user* owner, void* data) {
+
+    guac_spice_client* spice_client = (guac_spice_client*) data;
+
+    /* The stream is now closed */
+    guac_spice_audio_stream_ack(owner, spice_client->audio_input, "CLOSED",
+            GUAC_PROTOCOL_STATUS_RESOURCE_CLOSED);
+
+    return NULL;
+
+}
+
+void guac_spice_client_audio_record_start_handler(SpiceRecordChannel* channel,
+        gint format, gint channels, gint rate, guac_client* client) {
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Calling audio record start handler.");
+
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_client_for_owner(client, spice_client_record_start_callback, spice_client);
+    
+}
+
+void guac_spice_client_audio_record_stop_handler(SpiceRecordChannel* channel,
+        guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Calling audio record stop handler.");
+
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_client_for_owner(client, spice_client_record_stop_callback, spice_client);
+
+}

src/protocols/spice/channels/audio.h

@@ -0,0 +1,138 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_AUDIO_H
+#define GUAC_SPICE_AUDIO_H
+
+#include "config.h"
+
+#include <guacamole/client.h>
+
+#include <spice-client-glib-2.0/spice-client.h>
+
+/**
+ * A callback function invoked with the SPICE client receives audio playback
+ * data from the Spice server.
+ * 
+ * @param channel
+ *     The SpicePlaybackChannel on which the data was sent.
+ * 
+ * @param data
+ *     The audio data.
+ * 
+ * @param size
+ *     The number of bytes of data sent.
+ * 
+ * @param client
+ *     The guac_client associated with this event.
+ */
+void guac_spice_client_audio_playback_data_handler(
+        SpicePlaybackChannel* channel, gpointer data, gint size,
+        guac_client* client);
+
+/**
+ * A callback function invoked when the Spice server requests the audio playback
+ * delay value from the client.
+ * 
+ * @param channel
+ *     The SpicePlaybackChannel channel on which this event occurred.
+ * 
+ * @param client
+ *     The guac_client associated with this event.
+ */
+void guac_spice_client_audio_playback_delay_handler(
+        SpicePlaybackChannel* channel, guac_client* client);
+
+/**
+ * A callback function invoked by the client when the Spice server sends a 
+ * signal indicating that it is starting an audio transmission.
+ * 
+ * @param channel
+ *     The SpicePlaybackChannel on which this event occurred.
+ * 
+ * @param format
+ *     The SPICE_AUDIO_FMT value of the format of the audio data.
+ * 
+ * @param channels
+ *     The number of channels of audio data present.
+ * 
+ * @param rate
+ *     The audio sampling rate at which the data will be sent.
+ * 
+ * @param client
+ *     The guac_client associated with this event.
+ */
+void guac_spice_client_audio_playback_start_handler(
+        SpicePlaybackChannel* channel, gint format, gint channels, gint rate,
+        guac_client* client);
+
+/**
+ * The callback function invoked by the client when the SPICE server sends
+ * an event indicating that audio playback will cease.
+ * 
+ * @param channel
+ *     The SpicePlaybackChannel on which the recording is being halted.
+ * 
+ * @param client
+ *     The guac_client associated with this event.
+ */
+void guac_spice_client_audio_playback_stop_handler(
+        SpicePlaybackChannel* channel, guac_client* client);
+
+/**
+ * Handler for inbound audio data (audio input).
+ */
+guac_user_audio_handler guac_spice_client_audio_record_handler;
+
+/**
+ * The callback function invoked by the Spice client when the Spice server
+ * requests that the client begin recording audio data to send to the server.
+ * 
+ * @param channel
+ *     The SpiceRecordChannel on which the record event is being requested.
+ * 
+ * @param format
+ *     The SPICE_AUDIO_FMT value representing the required recording format.
+ * 
+ * @param channels
+ *     The number of audio channels that should be recorded.
+ * 
+ * @param rate
+ *     The rate at which the recording should take place.
+ * 
+ * @param client
+ *     The guac_client associated with this event.
+ */
+void guac_spice_client_audio_record_start_handler(SpiceRecordChannel* channel,
+        gint format, gint channels, gint rate, guac_client* client);
+
+/**
+ * The callback function invoked by the Spice client when the Spice server sends
+ * an event requesting that recording be stopped.
+ * 
+ * @param channel
+ *     The channel associated with the event.
+ * 
+ * @param client
+ *     The guac_client associated with the event.
+ */
+void guac_spice_client_audio_record_stop_handler(SpiceRecordChannel* channel,
+        guac_client* client);
+#endif /* GUAC_SPICE_AUDIO_H */
+

src/protocols/spice/channels/clipboard.c

@@ -0,0 +1,184 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+#include "client.h"
+#include "clipboard.h"
+#include "common/clipboard.h"
+#include "common/iconv.h"
+#include "spice.h"
+#include "spice-constants.h"
+#include "user.h"
+
+#include <guacamole/client.h>
+#include <guacamole/stream.h>
+#include <guacamole/user.h>
+
+#include <spice-1/spice/vd_agent.h>
+
+int guac_spice_clipboard_handler(guac_user* user, guac_stream* stream,
+        char* mimetype) {
+
+    guac_spice_client* spice_client = (guac_spice_client*) user->client->data;
+
+    /* Some versions of VDAgent do not support sending clipboard data. */
+    if (!spice_main_channel_agent_test_capability(spice_client->main_channel, VD_AGENT_CAP_CLIPBOARD_BY_DEMAND)) {
+        guac_client_log(user->client, GUAC_LOG_WARNING, "Spice guest agent does"
+            " not support sending clipboard data on demand.");
+        return 0;
+    }
+
+    /* Clear the current clipboard and send the grab command to the agent. */
+    guac_common_clipboard_reset(spice_client->clipboard, mimetype);
+    guint32 clipboard_types[] = { VD_AGENT_CLIPBOARD_UTF8_TEXT };
+    spice_main_channel_clipboard_selection_grab(spice_client->main_channel,
+            VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD, clipboard_types, 1);
+
+    /* Set handlers for clipboard stream */
+    stream->blob_handler = guac_spice_clipboard_blob_handler;
+    stream->end_handler = guac_spice_clipboard_end_handler;
+
+    return 0;
+}
+
+int guac_spice_clipboard_blob_handler(guac_user* user, guac_stream* stream,
+        void* data, int length) {
+
+    /* Append new data */
+    guac_spice_client* spice_client = (guac_spice_client*) user->client->data;
+    guac_common_clipboard_append(spice_client->clipboard, (char*) data, length);
+
+    return 0;
+}
+
+int guac_spice_clipboard_end_handler(guac_user* user, guac_stream* stream) {
+
+    guac_spice_client* spice_client = (guac_spice_client*) user->client->data;
+
+    /* Send via Spice only if finished connecting */
+    if (spice_client->main_channel != NULL) {
+        spice_main_channel_clipboard_selection_notify(spice_client->main_channel,
+            VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD,
+            VD_AGENT_CLIPBOARD_UTF8_TEXT,
+            (const unsigned char*) spice_client->clipboard->buffer,
+            spice_client->clipboard->length);
+    }
+
+    return 0;
+}
+
+void guac_spice_clipboard_selection_handler(SpiceMainChannel* channel,
+        guint selection, guint type, gpointer data, guint size,
+        guac_client* client) {
+
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    /* Loop through clipboard types - currently Guacamole only supports text. */
+    switch (type) {
+        case VD_AGENT_CLIPBOARD_UTF8_TEXT:
+            guac_client_log(client, GUAC_LOG_DEBUG, "Notifying client of text "
+                    " on clipboard from server: %s", (char *) data);
+            guac_common_clipboard_append(spice_client->clipboard, (char *) data, size);
+            break;
+
+        default:
+            guac_client_log(client, GUAC_LOG_WARNING, "Guacamole currently does"
+                " not support clipboard data other than plain text.");
+    }
+
+    guac_common_clipboard_send(spice_client->clipboard, client);
+
+}
+
+void guac_spice_clipboard_selection_grab_handler(SpiceMainChannel* channel,
+        guint selection, guint32* types, guint ntypes, guac_client* client) {
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Notifying client of clipboard grab"
+            " in the guest.");
+    guac_client_log(client, GUAC_LOG_DEBUG, "Arg: channel: 0x%08x", channel);
+    guac_client_log(client, GUAC_LOG_DEBUG, "Arg: selection: 0x%08x", selection);
+    guac_client_log(client, GUAC_LOG_DEBUG, "Arg: types: 0x%08x", types);
+    guac_client_log(client, GUAC_LOG_DEBUG, "Arg: ntypes: 0x%08x", ntypes);
+
+    /* Ignore selection types other than clipboard. */
+    if (selection != VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD) {
+        guac_client_log(client, GUAC_LOG_WARNING, "Unsupported clipboard grab type: %d", selection);
+        return;
+    }
+
+    /* Loop through the data types sent by the Spice server and process them. */
+    for (int i = 0; i < ntypes; i++) {
+
+        /* Currently Guacamole only supports text. */
+        if (types[i] != VD_AGENT_CLIPBOARD_UTF8_TEXT) {
+            guac_client_log(client, GUAC_LOG_WARNING, "Unsupported clipboard data type: %d", types[i]);
+            continue;
+        }
+
+        /* Reset our clipboard and request the data from the Spice serer. */
+        guac_spice_client* spice_client = (guac_spice_client*) client->data;
+        guac_common_clipboard_reset(spice_client->clipboard, "text/plain");
+        spice_main_channel_clipboard_selection_request(channel, selection, types[i]);
+    }
+
+    
+
+}
+
+void guac_spice_clipboard_selection_release_handler(SpiceMainChannel* channel,
+        guint selection, guac_client* client) {
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Notifying client of clipboard"
+            " release in the guest.");
+
+    /* Transfer data from guest to Guacamole clipboard. */
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_common_clipboard_send(spice_client->clipboard, client);
+
+}
+
+void guac_spice_clipboard_selection_request_handler(SpiceMainChannel* channel,
+        guint selection, guint type, guac_client* client) {
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Requesting clipboard data from"
+            " the client.");
+
+    /* Guacamole only supports one clipboard selection type. */
+    if (selection != VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD) {
+        guac_client_log(client, GUAC_LOG_WARNING, "Unsupported selection type: %d", selection);
+        return;
+    }
+
+    /* Currently Guacamole only implements text support - other types are images. */
+    if (type != VD_AGENT_CLIPBOARD_UTF8_TEXT) {
+        guac_client_log(client, GUAC_LOG_WARNING, "Unsupported clipboard data type: %d", type);
+        return;
+    }
+
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_client_log(client, GUAC_LOG_DEBUG, "Sending clipboard data to server: %s", spice_client->clipboard->buffer);
+
+    /* Send the clipboard data to the guest. */
+    spice_main_channel_clipboard_selection_notify(channel,
+            selection,
+            type,
+            (const unsigned char*) spice_client->clipboard->buffer,
+            spice_client->clipboard->length);
+
+}

src/protocols/spice/channels/clipboard.h

@@ -0,0 +1,131 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_CLIPBOARD_H
+#define GUAC_SPICE_CLIPBOARD_H
+
+#include "config.h"
+
+#include <guacamole/client.h>
+#include <guacamole/user.h>
+
+#include <spice-client-glib-2.0/spice-client.h>
+
+/**
+ * Handler for inbound clipboard data from Guacamole users.
+ */
+guac_user_clipboard_handler guac_spice_clipboard_handler;
+
+/**
+ * Handler for stream data related to clipboard.
+ */
+guac_user_blob_handler guac_spice_clipboard_blob_handler;
+
+/**
+ * Handler for end-of-stream related to clipboard.
+ */
+guac_user_end_handler guac_spice_clipboard_end_handler;
+
+/**
+ * A handler that will be registered with the Spice client to handle clipboard
+ * data sent from the Spice server to the client.
+ * 
+ * @param channel
+ *     The main Spice channel on which this event was fired.
+ * 
+ * @param selection
+ *     The clipboard on which the selection occurred.
+ * 
+ * @param type
+ *     The type of the data that is on the clipboard.
+ * 
+ * @param data
+ *     A pointer to the location containing the data that is on the clipboard.
+ * 
+ * @param size
+ *     The amount of data in bytes.
+ * 
+ * @param client
+ *     The guac_client associated with this event handler, passed when the
+ *     handler was registered.
+ */
+void guac_spice_clipboard_selection_handler(SpiceMainChannel* channel,
+        guint selection, guint type, gpointer data, guint size,
+        guac_client* client);
+
+/**
+ * A handler that will be registered with the Spice client to handle clipboard
+ * events where the guest (vdagent) within the Spice server notifies the client
+ * that data is available on the clipboard.
+ * 
+ * @param channel
+ *     The main SpiceChannel on which this event is fired.
+ * 
+ * @param selection
+ *     The Spice clipboard from which the event is fired.
+ * 
+ * @param types
+ *     The type of data being sent by the agent.
+ * 
+ * @param ntypes
+ *     The number of data types represented.
+ * 
+ * @param client
+ *     The guac_client that was passed in when the callback was registered.
+ */
+void guac_spice_clipboard_selection_grab_handler(SpiceMainChannel* channel,
+        guint selection, guint32* types, guint ntypes, guac_client* client);
+
+/**
+ * A handler that will be called by the Spice client when the Spice server
+ * is done with the clipboard and releases control of it. 
+ * 
+ * @param chennl
+ *     The main Spice channel on which this event is fired.
+ * 
+ * @param selection
+ *     The Spice server clipboard releasing control.
+ * 
+ * @param client
+ *     The guac_client that was registered with the callback.
+ */
+void guac_spice_clipboard_selection_release_handler(SpiceMainChannel* channel,
+        guint selection, guac_client* client);
+
+/**
+ * A handler that will be called by the Spice client when the Spice server
+ * would like to check and receive the contents of the client's clipboard.
+ * 
+ * @param channel
+ *     The main Spice channel on which this event is fired.
+ * 
+ * @param selection
+ *     The Spice server clipboard that is requesting data.
+ * 
+ * @param type
+ *     The type of data to be sent to the Spice server.
+ * 
+ * @param client
+ *     The guac_client object that was registered with the callback.
+ */
+void guac_spice_clipboard_selection_request_handler(SpiceMainChannel* channel,
+        guint selection, guint type, guac_client* client);
+
+#endif /* GUAC_SPICE_CLIPBOARD_H */
+

src/protocols/spice/channels/cursor.c

@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "client.h"
+#include "common/cursor.h"
+#include "common/display.h"
+#include "common/surface.h"
+#include "spice.h"
+#include "spice-constants.h"
+
+#include <cairo/cairo.h>
+#include <guacamole/client.h>
+#include <guacamole/layer.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <syslog.h>
+
+void guac_spice_cursor_hide(SpiceChannel* channel, guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_TRACE, "Hiding the cursor.");
+
+    /* Set the cursor to a blank image, hiding it. */
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_common_cursor_set_blank(spice_client->display->cursor);  
+}
+
+void guac_spice_cursor_move(SpiceChannel* channel, int x, int y,
+        guac_client* client) {
+
+    guac_client_log(client, GUAC_LOG_TRACE, "Cursor move signal received: %d, %d", x, y);
+
+    /* Update the cursor with the new coordinates. */
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_common_cursor_update(spice_client->display->cursor, client->__owner, x, y, spice_client->display->cursor->button_mask);
+}
+
+void guac_spice_cursor_reset(SpiceChannel* channel, guac_client* client) {
+    guac_client_log(client, GUAC_LOG_DEBUG,
+            "Cursor reset signal received, not yet implemented");
+}
+
+void guac_spice_cursor_set(SpiceChannel* channel, int width, int height,
+        int x, int y, gpointer* rgba, guac_client* client) {
+
+    guac_client_log(client, GUAC_LOG_TRACE, "Cursor set signal received.");
+
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width);
+
+    /* Update stored cursor information */
+    guac_common_cursor_set_argb(spice_client->display->cursor, x, y,
+            (const unsigned char*) rgba, width, height, stride);
+
+}

src/protocols/spice/channels/cursor.h

@@ -0,0 +1,101 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_CURSOR_H
+#define GUAC_SPICE_CURSOR_H
+
+#include "config.h"
+
+#include <spice-client-glib-2.0/spice-client.h>
+
+/**
+ * The callback function that is executed when the cursor hide signal is
+ * received from the Spice server.
+ * 
+ * @param channel
+ *     The channel which received the cursor hide event.
+ * 
+ * @param client
+ *     The guac_client associated with this Spice session.
+ */
+void guac_spice_cursor_hide(SpiceCursorChannel* channel, guac_client* client);
+
+/**
+ * The callback function that is executed when the cursor move signal is
+ * received from the Spice server.
+ * 
+ * @param channel
+ *     The channel that received the cursor move event.
+ * 
+ * @param x
+ *     The x position of the cursor.
+ * 
+ * @param y
+ *     The y position of the cursor.
+ * 
+ * @param client
+ *     The guac_client associated with this Spice session.
+ */
+void guac_spice_cursor_move(SpiceCursorChannel* channel, int x, int y,
+        guac_client* client);
+
+/**
+ * The callback function that is executed in response to the cursor reset
+ * signal, resetting the cursor to the default context.
+ * 
+ * @param channel
+ *     The channel that received the cursor reset signal.
+ * 
+ * @param client
+ *     The guac_client associated with this Spice session.
+ */
+void guac_spice_cursor_reset(SpiceCursorChannel* channel, guac_client* client);
+
+/**
+ * The callback function that is executed in response to receiving the cursor
+ * set signal from the Spice server, which sets the width, height, and image
+ * of the cursor, and the x and y coordinates of the cursor hotspot.
+ * 
+ * @param channel
+ *     The channel that received the cursor set signal.
+ * 
+ * @param width
+ *     The width of the cursor image.
+ * 
+ * @param height
+ *     The height of the cursor image.
+ * 
+ * @param x
+ *     The x coordinate of the cursor hotspot.
+ * 
+ * @param y
+ *     The y coordinate of the cursor hotspot.
+ * 
+ * @param rgba
+ *     A pointer to the memory region containing the image data for the cursor,
+ *     or NULL if the default cursor image should be used.
+ * 
+ * @param client
+ *     The guac_client associated with this Spice session.
+ */
+void guac_spice_cursor_set(SpiceCursorChannel* channel, int width, int height,
+        int x, int y, gpointer* rgba, guac_client* client);
+
+#endif /* GUAC_SPICE_CURSOR_H */
+

src/protocols/spice/channels/display.c

@@ -0,0 +1,167 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "client.h"
+#include "common/display.h"
+#include "common/iconv.h"
+#include "common/surface.h"
+#include "spice.h"
+
+#include <cairo/cairo.h>
+#include <guacamole/client.h>
+#include <guacamole/layer.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <syslog.h>
+
+void guac_spice_client_display_update(SpiceChannel* channel, int x,
+        int y, int w, int h, guac_client* client) {
+
+    guac_client_log(client, GUAC_LOG_TRACE,
+            "Received request to update Spice display: %d, %d, %d, %d",
+            x, y, w, h);
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    /* Retrieve the primary display buffer */
+    SpiceDisplayPrimary primary;
+    if (spice_display_channel_get_primary(channel, 0, &primary)) {
+
+        /* Create cairo surface from decoded buffer */
+        cairo_surface_t* surface = cairo_image_surface_create_for_data(
+                primary.data,
+                CAIRO_FORMAT_RGB24,
+                primary.width,
+                primary.height,
+                primary.stride);
+
+        /* A region smaller than the entire display should be updated. */
+        if ((x > 0 || y > 0 ) && (w < primary.width || h < primary.height)) {
+
+            cairo_surface_t* updateArea = cairo_surface_create_similar_image(surface, CAIRO_FORMAT_RGB24, w, h);
+            cairo_t* updateContext = cairo_create(updateArea);
+            cairo_set_operator(updateContext, CAIRO_OPERATOR_SOURCE);
+            cairo_set_source_surface(updateContext, surface, 0 - x, 0 - y);
+            cairo_rectangle(updateContext, 0, 0, w, h);
+            cairo_fill(updateContext);
+            guac_common_surface_draw(spice_client->display->default_surface, x, y, updateArea);
+            cairo_surface_destroy(updateArea);
+
+        }
+    
+        /* The entire display should be updated. */
+        else {
+            guac_common_surface_draw(spice_client->display->default_surface,
+                    0, 0, surface);
+        }
+
+        /* Free surfaces */
+        cairo_surface_destroy(surface);
+    }
+
+    /* Flush surface and mark end of frame. */
+    guac_common_surface_flush(spice_client->display->default_surface);
+    guac_client_end_frame(client);
+    guac_socket_flush(client->socket);
+}
+
+void guac_spice_client_display_gl_draw(SpiceChannel* channel, int x,
+        int y, int w, int h, guac_client* client) {
+
+    guac_client_log(client, GUAC_LOG_TRACE, "Received GL draw request.");
+
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    /* Copy specified rectangle within default layer */
+    guac_common_surface_copy(spice_client->display->default_surface,
+            x, y, w, h,
+            spice_client->display->default_surface, x, y);
+    
+
+}
+
+void guac_spice_client_display_mark(SpiceChannel* channel, gint mark,
+        guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_DEBUG,
+            "Received signal to mark display, which currently has no effect.");
+    
+}
+
+void guac_spice_client_display_primary_create(SpiceChannel* channel,
+        gint format, gint width, gint height, gint stride, gint shmid,
+        gpointer imgdata, guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Received request to create primary display.");
+
+    /* Allocate the Guacamole display. */
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    spice_client->display = guac_common_display_alloc(client,
+            width, height);
+
+    /* Create a matching Cairo image surface. */
+    guac_client_log(client, GUAC_LOG_TRACE, "Creating Cairo image surface.");
+    cairo_surface_t* surface = cairo_image_surface_create_for_data(imgdata, CAIRO_FORMAT_RGB24,
+            width, height, stride);
+
+    /* Draw directly to default layer */
+    guac_client_log(client, GUAC_LOG_TRACE, "Drawing to the default surface.");
+    guac_common_surface_draw(spice_client->display->default_surface,
+            0, 0, surface);
+
+    /* Flush the default surface. */
+    guac_client_log(client, GUAC_LOG_TRACE, "Flushing the default surface.");
+    guac_common_surface_flush(spice_client->display->default_surface);
+
+    /* Mark the end of the frame and flush the socket. */
+    guac_client_end_frame(client);
+    guac_socket_flush(client->socket);
+    
+    
+}
+
+void guac_spice_client_display_primary_destroy(SpiceChannel* channel,
+        guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Received request to destroy the primary display.");
+
+    /* Free the Guacamole display. */
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_common_display_free(spice_client->display);
+    
+}
+    
+void* guac_spice_client_streaming_handler(SpiceChannel* channel,
+        gboolean streaming_mode, guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Received call to streaming handler.");
+
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    return spice_client->display;
+    
+}
+
+

src/protocols/spice/channels/display.h

@@ -0,0 +1,187 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_DISPLAY_H
+#define GUAC_SPICE_DISPLAY_H
+
+#include "config.h"
+
+#include <spice-client-glib-2.0/spice-client.h>
+
+/* Define cairo_format_stride_for_width() if missing */
+#ifndef HAVE_CAIRO_FORMAT_STRIDE_FOR_WIDTH
+#define cairo_format_stride_for_width(format, width) (width*4)
+#endif
+
+/**
+ * Callback invoked by the Spice library when it receives a new binary image
+ * data from the Spice server. The image itself will be stored in the designated
+ * sub-rectangle of client->framebuffer.
+ *
+ * @param channel
+ *     The SpiceDisplayChannel that received the update event.
+ *
+ * @param x
+ *     The X coordinate of the upper-left corner of the destination rectangle
+ *     in which the image should be drawn, in pixels.
+ *
+ * @param y
+ *     The Y coordinate of the upper-left corner of the destination rectangle
+ *     in which the image should be drawn, in pixels.
+ *
+ * @param w
+ *     The width of the image, in pixels.
+ *
+ * @param h
+ *     The height of the image, in pixels.
+ * 
+ * @param guac_client
+ *     The guac_client associated with the event.
+ */
+void guac_spice_client_display_update(SpiceDisplayChannel* channel, int x,
+        int y, int w, int h, guac_client* client);
+
+/**
+ * The callback function invoked when the RED_DISPLAY_MARK command is received
+ * from the Spice server and the display should be exposed.
+ * 
+ * @param channel
+ *     The SpiceDisplayChannel on which the event was received.
+ * 
+ * @param mark
+ *     Non-zero when the display mark has been received.
+ * 
+ * @param client
+ *     The guac_client associated with this channel and event.
+ */
+void guac_spice_client_display_mark(SpiceDisplayChannel* channel, gint mark,
+        guac_client* client);
+
+/**
+ * The callback function invoked when primary display buffer data is sent from
+ * the Spice server to the client.
+ * 
+ * @param channel
+ *     The SpiceDisplayChannel on which this event was received.
+ * 
+ * @param format
+ *     The Spice format of the received data.
+ * 
+ * @param width
+ *     The total width of the display.
+ * 
+ * @param height
+ *     The total height of the display.
+ * 
+ * @param stride
+ *     The buffer width padding.
+ * 
+ * @param shmid
+ *     The identifier of the shared memory segment associated with the data, or
+ *     -1 if shared memory is not in use.
+ * 
+ * @param imgdata
+ *     A pointer to the buffer containing the surface data.
+ * 
+ * @param client
+ *     The guac_client associated with this channel/event.
+ */
+void guac_spice_client_display_primary_create(SpiceDisplayChannel* channel,
+        gint format, gint width, gint height, gint stride, gint shmid,
+        gpointer imgdata, guac_client* client);
+
+/**
+ * The callback function invoked by the client when the primary surface is
+ * destroyed and should no longer be accessed.
+ * 
+ * @param channel
+ *     The SpiceDisplayChannel on which the primary surface destroy event was
+ *     received.
+ * 
+ * @param client
+ *     The guac_client associated with this channel/event.
+ */
+void guac_spice_client_display_primary_destroy(SpiceDisplayChannel* channel,
+        guac_client* client);
+
+/**
+ * Callback function that is invoked when a channel specifies that a display
+ * is marked as active and should be exposed.
+ * 
+ * @param channel
+ *     The channel on which the mark was received.
+ * 
+ * @param marked
+ *     TRUE if the display should be marked; otherwise false.
+ * 
+ * @param client
+ *     The guac_client associated with the channel/event.
+ */
+void guac_spice_client_display_mark(SpiceDisplayChannel* channel,
+        gboolean marked, guac_client* client);
+
+/**
+ * Callback invoked by the Spice client when it receives a CopyRect message.
+ * CopyRect specified a rectangle of source data within the display and a
+ * set of X/Y coordinates to which that rectangle should be copied.
+ *
+ * @param channel
+ *     The SpiceDisplayChannel that received the gl_draw event.
+ *
+ * @param x
+ *     The X coordinate of the upper-left corner of the source rectangle
+ *     from which the image data should be copied, in pixels.
+ *
+ * @param y
+ *     The Y coordinate of the upper-left corner of the source rectangle
+ *     from which the image data should be copied, in pixels.
+ *
+ * @param w
+ *     The width of the source and destination rectangles, in pixels.
+ *
+ * @param h
+ *     The height of the source and destination rectangles, in pixels.
+ * 
+ * @param guac_client
+ *     The guac_client associated with this gl_draw event.
+ */
+void guac_spice_client_display_gl_draw(SpiceDisplayChannel* channel, int x,
+        int y, int w, int h, guac_client* client);
+
+/**
+ * The callback function invoked by the client when it receives a request to
+ * change streaming mode.
+ * 
+ * @param channel
+ *     The SpiceDisplayChannel that received the streaming mode change request.
+ * 
+ * @param streaming_mode
+ *     TRUE if the display channel should be in streaming mode; otherwise FALSE.
+ * 
+ * @param guac_client
+ *     The guac_client associated with this event.
+ * 
+ * @return
+ *     A pointer to the display.
+ */
+void* guac_spice_client_streaming_handler(SpiceDisplayChannel* channel,
+        gboolean streaming_mode, guac_client* client);
+
+#endif /* GUAC_SPICE_DISPLAY_H */
+

src/protocols/spice/channels/file-download.c

@@ -0,0 +1,321 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "common/json.h"
+#include "file-download.h"
+#include "file-ls.h"
+#include "file.h"
+#include "spice.h"
+
+#include <guacamole/client.h>
+#include <guacamole/object.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <guacamole/stream.h>
+#include <guacamole/string.h>
+#include <guacamole/user.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <sys/inotify.h>
+
+void* guac_spice_file_download_monitor(void* data) {
+
+    guac_spice_folder* folder = (guac_spice_folder*) data;
+    char download_path[GUAC_SPICE_FOLDER_MAX_PATH];
+    char download_events[GUAC_SPICE_FOLDER_MAX_EVENTS];
+    char file_path[GUAC_SPICE_FOLDER_MAX_PATH];
+    const struct inotify_event *event;
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG, "%s: Starting up file monitor thread.", __func__);
+
+    /* If folder has already been freed, or isn't open, yet, don't do anything. */
+    if (folder == NULL)
+        return NULL;
+
+    download_path[0] = '\0';
+    guac_strlcat(download_path, folder->path, GUAC_SPICE_FOLDER_MAX_PATH);
+    guac_strlcat(download_path, "/Download", GUAC_SPICE_FOLDER_MAX_PATH);
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG, "%s: Watching folder at path \"%s\".", __func__, download_path);
+
+    int notify = inotify_init();
+
+    if (notify == -1) {
+        guac_client_log(folder->client, GUAC_LOG_ERROR,
+                "%s: Failed to start inotify, automatic downloads will not work: %s",
+                __func__, strerror(errno));
+        return NULL;
+    }
+
+    if(inotify_add_watch(notify, download_path, IN_CREATE | IN_ATTRIB | IN_CLOSE_WRITE | IN_MOVED_TO | IN_ONLYDIR | IN_EXCL_UNLINK) == -1) {
+        guac_client_log(folder->client, GUAC_LOG_ERROR,
+                "%s: Failed to set inotify flags for \"%s\".",
+                __func__, download_path);
+        return NULL;
+    }
+
+    while (true) {
+        int events = read(notify, download_events, sizeof(download_events));
+        if (events == -1 && errno != EAGAIN) {
+            guac_client_log(folder->client, GUAC_LOG_ERROR,
+                    "%s: Failed to read inotify events: %s",
+                    __func__, strerror(errno));
+            return NULL;
+        }
+
+        if (events <= 0)
+            continue;
+
+        
+        for (char* ptr = download_events; ptr < download_events + events; ptr += sizeof(struct inotify_event) + event->len) {
+            
+            event = (const struct inotify_event *) ptr;
+
+            if (event->mask & IN_ISDIR) {
+                guac_client_log(folder->client, GUAC_LOG_DEBUG, "%s: Ignoring event 0x%x for directory %s.", __func__, event->mask, event->name);
+                continue;
+            }
+
+            guac_client_log(folder->client, GUAC_LOG_ERROR,
+                    "%s: 0x%x - Downloading the file: %s", __func__, event->mask, event->name, event->cookie);
+
+            file_path[0] = '\0';
+            guac_strlcat(file_path, "/Download/", GUAC_SPICE_FOLDER_MAX_PATH);
+            guac_strlcat(file_path, event->name, GUAC_SPICE_FOLDER_MAX_PATH);
+            // guac_client_for_owner(folder->client, guac_spice_file_download_to_user, file_path);
+            //int fileid = guac_spice_folder_open(folder, file_path, O_WRONLY, 0, 0);
+            // guac_spice_folder_delete(folder, fileid);
+            
+
+        }
+
+    }
+
+    return NULL;
+
+}
+
+int guac_spice_file_download_ack_handler(guac_user* user, guac_stream* stream,
+        char* message, guac_protocol_status status) {
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_spice_file_download_status* download_status = (guac_spice_file_download_status*) stream->data;
+
+    /* Get folder, return error if no folder */
+    guac_spice_folder* folder = spice_client->shared_folder;
+    if (folder == NULL) {
+        guac_protocol_send_ack(user->socket, stream, "FAIL (NO FOLDER)",
+                GUAC_PROTOCOL_STATUS_SERVER_ERROR);
+        guac_socket_flush(user->socket);
+        return 0;
+    }
+
+    /* If successful, read data */
+    if (status == GUAC_PROTOCOL_STATUS_SUCCESS) {
+
+        /* Attempt read into buffer */
+        char buffer[4096];
+        int bytes_read = guac_spice_folder_read(folder,
+                download_status->file_id,
+                download_status->offset, buffer, sizeof(buffer));
+
+        /* If bytes read, send as blob */
+        if (bytes_read > 0) {
+            download_status->offset += bytes_read;
+            guac_protocol_send_blob(user->socket, stream,
+                    buffer, bytes_read);
+        }
+
+        /* If EOF, send end */
+        else if (bytes_read == 0) {
+            guac_protocol_send_end(user->socket, stream);
+            guac_user_free_stream(user, stream);
+            free(download_status);
+        }
+
+        /* Otherwise, fail stream */
+        else {
+            guac_user_log(user, GUAC_LOG_ERROR,
+                    "Error reading file for download");
+            guac_protocol_send_end(user->socket, stream);
+            guac_user_free_stream(user, stream);
+            free(download_status);
+        }
+
+        guac_socket_flush(user->socket);
+
+    }
+
+    /* Otherwise, return stream to user */
+    else
+        guac_user_free_stream(user, stream);
+
+    return 0;
+
+}
+
+int guac_spice_file_download_get_handler(guac_user* user, guac_object* object,
+        char* name) {
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    int flags = 0;
+
+    /* Get folder, ignore request if no folder */
+    guac_spice_folder* folder = spice_client->shared_folder;
+    if (folder == NULL)
+        return 0;
+
+    flags |= O_RDONLY;
+
+    guac_user_log(user, GUAC_LOG_DEBUG, "%s: folder->path=%s, name=%s", __func__, folder->path, name);
+
+    /* Attempt to open file for reading */
+    int file_id = guac_spice_folder_open(folder, name, flags, 0, 0);
+    if (file_id < 0) {
+        guac_user_log(user, GUAC_LOG_INFO, "Unable to read file \"%s\"",
+                name);
+        return 0;
+    }
+
+    /* Get opened file */
+    guac_spice_folder_file* file = guac_spice_folder_get_file(folder, file_id);
+    if (file == NULL) {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: Successful open produced bad file_id: %i",
+                __func__, file_id);
+        return 0;
+    }
+
+    /* If directory, send contents of directory */
+    if (S_ISDIR(file->stmode)) {
+
+        /* Create stream data */
+        guac_spice_file_ls_status* ls_status = malloc(sizeof(guac_spice_file_ls_status));
+        ls_status->folder = folder;
+        ls_status->file_id = file_id;
+        guac_strlcpy(ls_status->directory_name, name,
+                sizeof(ls_status->directory_name));
+
+        /* Allocate stream for body */
+        guac_stream* stream = guac_user_alloc_stream(user);
+        stream->ack_handler = guac_spice_file_ls_ack_handler;
+        stream->data = ls_status;
+
+        /* Init JSON object state */
+        guac_common_json_begin_object(user, stream,
+                &ls_status->json_state);
+
+        /* Associate new stream with get request */
+        guac_protocol_send_body(user->socket, object, stream,
+                GUAC_USER_STREAM_INDEX_MIMETYPE, name);
+
+    }
+
+    /* Otherwise, send file contents if downloads are allowed */
+    else if (!folder->disable_download) {
+
+        /* Create stream data */
+        guac_spice_file_download_status* download_status = malloc(sizeof(guac_spice_file_download_status));
+        download_status->file_id = file_id;
+        download_status->offset = 0;
+
+        /* Allocate stream for body */
+        guac_stream* stream = guac_user_alloc_stream(user);
+        stream->data = download_status;
+        stream->ack_handler = guac_spice_file_download_ack_handler;
+
+        /* Associate new stream with get request */
+        guac_protocol_send_body(user->socket, object, stream,
+                "application/octet-stream", name);
+
+    }
+
+    else
+        guac_client_log(client, GUAC_LOG_INFO, "Unable to download file "
+                "\"%s\", file downloads have been disabled.", name);
+
+    guac_socket_flush(user->socket);
+    return 0;
+}
+
+void* guac_spice_file_download_to_user(guac_user* user, void* data) {
+
+    /* Do not bother attempting the download if the user has left */
+    if (user == NULL)
+        return NULL;
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_spice_folder* folder = spice_client->shared_folder;
+    int flags = 0;
+
+    /* Ignore download if folder has been unloaded */
+    if (folder == NULL)
+        return NULL;
+
+    /* Ignore download if downloads have been disabled */
+    if (folder->disable_download) {
+        guac_client_log(client, GUAC_LOG_WARNING, "A download attempt has "
+                "been blocked due to downloads being disabled, however it "
+                "should have been blocked at a higher level. This is likely "
+                "a bug.");
+        return NULL;
+    }
+
+    /* Attempt to open requested file */
+    char* path = (char*) data;
+    flags |= O_RDONLY;
+    int file_id = guac_spice_folder_open(folder, path,
+            flags, 0, 0);
+
+    /* If file opened successfully, start stream */
+    if (file_id >= 0) {
+
+        /* Associate stream with transfer status */
+        guac_stream* stream = guac_user_alloc_stream(user);
+        guac_spice_file_download_status* download_status = malloc(sizeof(guac_spice_file_download_status));
+        stream->data = download_status;
+        stream->ack_handler = guac_spice_file_download_ack_handler;
+        download_status->file_id = file_id;
+        download_status->offset = 0;
+
+        guac_user_log(user, GUAC_LOG_DEBUG, "%s: Initiating download "
+                "of \"%s\"", __func__, path);
+
+        /* Begin stream */
+        guac_protocol_send_file(user->socket, stream,
+                "application/octet-stream", guac_spice_folder_basename(path));
+        guac_socket_flush(user->socket);
+
+        /* Download started successfully */
+        return stream;
+
+    }
+
+    /* Download failed */
+    guac_user_log(user, GUAC_LOG_ERROR, "Unable to download \"%s\"", path);
+    return NULL;
+
+}
+

src/protocols/spice/channels/file-download.h

@@ -0,0 +1,83 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_FILE_DOWNLOAD_H
+#define GUAC_SPICE_FILE_DOWNLOAD_H
+
+#include "common/json.h"
+
+#include <guacamole/protocol.h>
+#include <guacamole/stream.h>
+#include <guacamole/user.h>
+
+#include <stdint.h>
+
+/**
+ * The transfer status of a file being downloaded.
+ */
+typedef struct guac_spice_file_download_status {
+
+    /**
+     * The file ID of the file being downloaded.
+     */
+    int file_id;
+
+    /**
+     * The current position within the file.
+     */
+    uint64_t offset;
+
+} guac_spice_file_download_status;
+
+/**
+ * Function which uses Linux's inotify facility to monitor the "Download"
+ * directory of a shared folder for changes and trigger the automatic download
+ * of that data to the Guacamole user who has access to the shared folder.
+ *
+ * @param data
+ *     A pointer to the guac_spice_folder structure in which the Download
+ *     folder is located.
+ * 
+ * @return
+ *     Always NULL
+ */
+void* guac_spice_file_download_monitor(void* data);
+
+/**
+ * Handler for acknowledgements of receipt of data related to file downloads.
+ */
+guac_user_ack_handler guac_spice_file_download_ack_handler;
+
+/**
+ * Handler for get messages. In context of downloads and the filesystem exposed
+ * via the Guacamole protocol, get messages request the body of a file within
+ * the filesystem.
+ */
+guac_user_get_handler guac_spice_file_download_get_handler;
+
+/**
+ * Callback for guac_client_for_user() and similar functions which initiates a
+ * file download to a specific user if that user is still connected. The path
+ * for the file to be downloaded must be passed as the arbitrary data parameter
+ * for the function invoking this callback.
+ */
+guac_user_callback guac_spice_file_download_to_user;
+
+#endif
+

src/protocols/spice/channels/file-ls.c

@@ -0,0 +1,127 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "file.h"
+#include "file-ls.h"
+
+#include <guacamole/client.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <guacamole/stream.h>
+#include <guacamole/user.h>
+
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+int guac_spice_file_ls_ack_handler(guac_user* user, guac_stream* stream,
+        char* message, guac_protocol_status status) {
+
+    int blob_written = 0;
+    const char* filename;
+
+    guac_spice_file_ls_status* ls_status = (guac_spice_file_ls_status*) stream->data;
+
+    guac_user_log(user, GUAC_LOG_DEBUG, "%s: folder=\"%s\"", __func__, ls_status->folder->path);
+
+    /* If unsuccessful, free stream and abort */
+    if (status != GUAC_PROTOCOL_STATUS_SUCCESS) {
+        guac_spice_folder_close(ls_status->folder, ls_status->file_id);
+        guac_user_free_stream(user, stream);
+        free(ls_status);
+        return 0;
+    }
+
+    /* While directory entries remain */
+    while ((filename = guac_spice_folder_read_dir(ls_status->folder,
+                    ls_status->file_id)) != NULL
+            && !blob_written) {
+
+        char absolute_path[GUAC_SPICE_FOLDER_MAX_PATH];
+
+        /* Skip current and parent directory entries */
+        if (strcmp(filename, ".") == 0 || strcmp(filename, "..") == 0)
+            continue;
+
+        /* Concatenate into absolute path - skip if invalid */
+        if (!guac_spice_folder_append_filename(absolute_path,
+                    ls_status->directory_name, filename)) {
+
+            guac_user_log(user, GUAC_LOG_DEBUG,
+                    "Skipping filename \"%s\" - filename is invalid or "
+                    "resulting path is too long", filename);
+
+            continue;
+        }
+
+        guac_user_log(user, GUAC_LOG_DEBUG, "%s: absolute_path=\"%s\"", __func__, absolute_path);
+
+        /* Attempt to open file to determine type */
+        int flags = (0 | O_RDONLY);
+        int file_id = guac_spice_folder_open(ls_status->folder, absolute_path,
+                flags, 0, 0);
+        if (file_id < 0)
+            continue;
+
+        /* Get opened file */
+        guac_spice_folder_file* file = guac_spice_folder_get_file(ls_status->folder, file_id);
+        if (file == NULL) {
+            guac_user_log(user, GUAC_LOG_DEBUG, "%s: Successful open produced "
+                    "bad file_id: %i", __func__, file_id);
+            return 0;
+        }
+
+        /* Determine mimetype */
+        const char* mimetype;
+        if (S_ISDIR(file->stmode))
+            mimetype = GUAC_USER_STREAM_INDEX_MIMETYPE;
+        else
+            mimetype = "application/octet-stream";
+
+        /* Write entry */
+        blob_written |= guac_common_json_write_property(user, stream,
+                &ls_status->json_state, absolute_path, mimetype);
+
+        guac_spice_folder_close(ls_status->folder, file_id);
+
+    }
+
+    /* Complete JSON and cleanup at end of directory */
+    if (filename == NULL) {
+
+        /* Complete JSON object */
+        guac_common_json_end_object(user, stream, &ls_status->json_state);
+        guac_common_json_flush(user, stream, &ls_status->json_state);
+
+        /* Clean up resources */
+        guac_spice_folder_close(ls_status->folder, ls_status->file_id);
+        free(ls_status);
+
+        /* Signal of stream */
+        guac_protocol_send_end(user->socket, stream);
+        guac_user_free_stream(user, stream);
+
+    }
+
+    guac_socket_flush(user->socket);
+    return 0;
+
+}
+

src/protocols/spice/channels/file-ls.h

@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_RDP_LS_H
+#define GUAC_RDP_LS_H
+
+#include "common/json.h"
+#include "file.h"
+
+#include <guacamole/protocol.h>
+#include <guacamole/stream.h>
+#include <guacamole/user.h>
+
+#include <stdint.h>
+
+/**
+ * The current state of a directory listing operation.
+ */
+typedef struct guac_spice_file_ls_status {
+
+    /**
+     * The filesystem associated with the directory being listed.
+     */
+    guac_spice_folder* folder;
+
+    /**
+     * The file ID of the directory being listed.
+     */
+    int file_id;
+
+    /**
+     * The absolute path of the directory being listed.
+     */
+    char directory_name[GUAC_SPICE_FOLDER_MAX_PATH];
+
+    /**
+     * The current state of the JSON directory object being written.
+     */
+    guac_common_json_state json_state;
+
+} guac_spice_file_ls_status;
+
+/**
+ * Handler for ack messages received due to receipt of a "body" or "blob"
+ * instruction associated with a directory list operation.
+ */
+guac_user_ack_handler guac_spice_file_ls_ack_handler;
+
+#endif
+

src/protocols/spice/channels/file-upload.c

@@ -0,0 +1,261 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "file.h"
+#include "spice.h"
+#include "file-upload.h"
+
+#include <guacamole/client.h>
+#include <guacamole/object.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <guacamole/stream.h>
+#include <guacamole/user.h>
+
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+/**
+ * Writes the given filename to the given upload path, sanitizing the filename
+ * and translating the filename to the root directory.
+ *
+ * @param filename
+ *     The filename to sanitize and move to the root directory.
+ *
+ * @param path
+ *     A pointer to a buffer which should receive the sanitized path. The
+ *     buffer must have at least GUAC_RDP_FS_MAX_PATH bytes available.
+ */
+static void __generate_upload_path(const char* filename, char* path) {
+
+    int i;
+
+    /* Add initial backslash */
+    *(path++) = '\\';
+
+    for (i=1; i<GUAC_SPICE_FOLDER_MAX_PATH; i++) {
+
+        /* Get current, stop at end */
+        char c = *(filename++);
+        if (c == '\0')
+            break;
+
+        /* Replace special characters with underscores */
+        if (c == '/' || c == '\\')
+            c = '_';
+
+        *(path++) = c;
+
+    }
+
+    /* Terminate path */
+    *path = '\0';
+
+}
+
+int guac_spice_file_upload_file_handler(guac_user* user, guac_stream* stream,
+        char* mimetype, char* filename) {
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    int file_id;
+    char file_path[GUAC_SPICE_FOLDER_MAX_PATH];
+
+    /* Get filesystem, return error if no filesystem */
+    guac_spice_folder* folder = spice_client->shared_folder;
+    if (folder == NULL) {
+        guac_protocol_send_ack(user->socket, stream, "FAIL (NO FS)",
+                GUAC_PROTOCOL_STATUS_SERVER_ERROR);
+        guac_socket_flush(user->socket);
+        return 0;
+    }
+
+    /* Ignore upload if uploads have been disabled */
+    if (folder->disable_upload) {
+        guac_client_log(client, GUAC_LOG_WARNING, "A upload attempt has "
+                "been blocked due to uploads being disabled, however it "
+                "should have been blocked at a higher level. This is likely "
+                "a bug.");
+        guac_protocol_send_ack(user->socket, stream, "FAIL (UPLOAD DISABLED)",
+                GUAC_PROTOCOL_STATUS_CLIENT_FORBIDDEN);
+        guac_socket_flush(user->socket);
+        return 0;
+    }
+
+    /* Translate name */
+    __generate_upload_path(filename, file_path);
+
+    /* Open file */
+    file_id = guac_spice_folder_open(folder, file_path, (O_WRONLY | O_CREAT | O_TRUNC),
+            1, 0);
+    if (file_id < 0) {
+        guac_protocol_send_ack(user->socket, stream, "FAIL (CANNOT OPEN)",
+                GUAC_PROTOCOL_STATUS_CLIENT_FORBIDDEN);
+        guac_socket_flush(user->socket);
+        return 0;
+    }
+
+    /* Init upload status */
+    guac_spice_file_upload_status* upload_status = malloc(sizeof(guac_spice_file_upload_status));
+    upload_status->offset = 0;
+    upload_status->file_id = file_id;
+    stream->data = upload_status;
+    stream->blob_handler = guac_spice_file_upload_blob_handler;
+    stream->end_handler = guac_spice_file_upload_end_handler;
+
+    guac_protocol_send_ack(user->socket, stream, "OK (STREAM BEGIN)",
+            GUAC_PROTOCOL_STATUS_SUCCESS);
+    guac_socket_flush(user->socket);
+    return 0;
+
+}
+
+int guac_spice_file_upload_blob_handler(guac_user* user, guac_stream* stream,
+        void* data, int length) {
+
+    int bytes_written;
+    guac_spice_file_upload_status* upload_status = (guac_spice_file_upload_status*) stream->data;
+
+    /* Get filesystem, return error if no filesystem */
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_spice_folder* folder = spice_client->shared_folder;
+    if (folder == NULL) {
+        guac_protocol_send_ack(user->socket, stream, "FAIL (NO FOLDER)",
+                GUAC_PROTOCOL_STATUS_SERVER_ERROR);
+        guac_socket_flush(user->socket);
+        return 0;
+    }
+
+    /* Write entire block */
+    while (length > 0) {
+
+        /* Attempt write */
+        bytes_written = guac_spice_folder_write(folder, upload_status->file_id,
+                upload_status->offset, data, length);
+
+        /* On error, abort */
+        if (bytes_written < 0) {
+            guac_protocol_send_ack(user->socket, stream,
+                    "FAIL (BAD WRITE)",
+                    GUAC_PROTOCOL_STATUS_CLIENT_FORBIDDEN);
+            guac_socket_flush(user->socket);
+            return 0;
+        }
+
+        /* Update counters */
+        upload_status->offset += bytes_written;
+        data = (char *)data + bytes_written;
+        length -= bytes_written;
+
+    }
+
+    guac_protocol_send_ack(user->socket, stream, "OK (DATA RECEIVED)",
+            GUAC_PROTOCOL_STATUS_SUCCESS);
+    guac_socket_flush(user->socket);
+    return 0;
+
+}
+
+int guac_spice_file_upload_end_handler(guac_user* user, guac_stream* stream) {
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_spice_file_upload_status* upload_status = (guac_spice_file_upload_status*) stream->data;
+
+    /* Get folder, return error if no filesystem */
+    guac_spice_folder* folder = spice_client->shared_folder;
+    if (folder == NULL) {
+        guac_protocol_send_ack(user->socket, stream, "FAIL (NO FOLDER)",
+                GUAC_PROTOCOL_STATUS_SERVER_ERROR);
+        guac_socket_flush(user->socket);
+        return 0;
+    }
+
+    /* Close file */
+    guac_spice_folder_close(folder, upload_status->file_id);
+
+    /* Acknowledge stream end */
+    guac_protocol_send_ack(user->socket, stream, "OK (STREAM END)",
+            GUAC_PROTOCOL_STATUS_SUCCESS);
+    guac_socket_flush(user->socket);
+
+    free(upload_status);
+    return 0;
+
+}
+
+int guac_spice_file_upload_put_handler(guac_user* user, guac_object* object,
+        guac_stream* stream, char* mimetype, char* name) {
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    /* Get folder, return error if no filesystem */
+    guac_spice_folder* folder = spice_client->shared_folder;
+    if (folder == NULL) {
+        guac_protocol_send_ack(user->socket, stream, "FAIL (NO FOLDER)",
+                GUAC_PROTOCOL_STATUS_SERVER_ERROR);
+        guac_socket_flush(user->socket);
+        return 0;
+    }
+
+    /* Ignore upload if uploads have been disabled */
+    if (folder->disable_upload) {
+        guac_client_log(client, GUAC_LOG_WARNING, "A upload attempt has "
+                "been blocked due to uploads being disabled, however it "
+                "should have been blocked at a higher level. This is likely "
+                "a bug.");
+        guac_protocol_send_ack(user->socket, stream, "FAIL (UPLOAD DISABLED)",
+                GUAC_PROTOCOL_STATUS_CLIENT_FORBIDDEN);
+        guac_socket_flush(user->socket);
+        return 0;
+    }
+
+    /* Open file */
+    int file_id = guac_spice_folder_open(folder, name, (O_WRONLY | O_CREAT | O_TRUNC),
+            1, 0);
+
+    /* Abort on failure */
+    if (file_id < 0) {
+        guac_protocol_send_ack(user->socket, stream, "FAIL (CANNOT OPEN)",
+                GUAC_PROTOCOL_STATUS_CLIENT_FORBIDDEN);
+        guac_socket_flush(user->socket);
+        return 0;
+    }
+
+    /* Init upload stream data */
+    guac_spice_file_upload_status* upload_status = malloc(sizeof(guac_spice_file_upload_status));
+    upload_status->offset = 0;
+    upload_status->file_id = file_id;
+
+    /* Allocate stream, init for file upload */
+    stream->data = upload_status;
+    stream->blob_handler = guac_spice_file_upload_blob_handler;
+    stream->end_handler = guac_spice_file_upload_end_handler;
+
+    /* Acknowledge stream creation */
+    guac_protocol_send_ack(user->socket, stream, "OK (STREAM BEGIN)",
+            GUAC_PROTOCOL_STATUS_SUCCESS);
+    guac_socket_flush(user->socket);
+    return 0;
+}
+

src/protocols/spice/channels/file-upload.h

@@ -0,0 +1,72 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_FILE_UPLOAD_H
+#define GUAC_SPICE_FILE_UPLOAD_H
+
+#include "common/json.h"
+
+#include <guacamole/protocol.h>
+#include <guacamole/stream.h>
+#include <guacamole/user.h>
+
+#include <stdint.h>
+
+/**
+ * Structure which represents the current state of an upload.
+ */
+typedef struct guac_spice_file_upload_status {
+
+    /**
+     * The overall offset within the file that the next write should
+     * occur at.
+     */
+    uint64_t offset;
+
+    /**
+     * The ID of the file being written to.
+     */
+    int file_id;
+
+} guac_spice_file_upload_status;
+
+/**
+ * Handler for inbound files related to file uploads.
+ */
+guac_user_file_handler guac_spice_file_upload_file_handler;
+
+/**
+ * Handler for stream data related to file uploads.
+ */
+guac_user_blob_handler guac_spice_file_upload_blob_handler;
+
+/**
+ * Handler for end-of-stream related to file uploads.
+ */
+guac_user_end_handler guac_spice_file_upload_end_handler;
+
+/**
+ * Handler for put messages. In context of uploads and the filesystem exposed
+ * via the Guacamole protocol, put messages request write access to a file
+ * within the filesystem.
+ */
+guac_user_put_handler guac_spice_file_upload_put_handler;
+
+#endif
+

src/protocols/spice/channels/file.c

@@ -0,0 +1,701 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "file.h"
+#include "file-download.h"
+#include "file-ls.h"
+#include "file-upload.h"
+
+#include <guacamole/client.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <guacamole/string.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <sys/stat.h>
+
+/**
+ * Translates an absolute path for a shared folder to an absolute path which is
+ * within the real "shared folder" path specified in the connection settings.
+ * No checking is performed on the path provided, which is assumed to have
+ * already been normalized and validated as absolute.
+ *
+ * @param folder
+ *     The folder containing the file whose path is being translated.
+ *
+ * @param virtual_path
+ *     The absolute path to the file on the simulated folder, relative to the
+ *     shared folder root.
+ *
+ * @param real_path
+ *     The buffer in which to store the absolute path to the real file on the
+ *     local filesystem.
+ */
+static void __guac_spice_folder_translate_path(guac_spice_folder* folder,
+        const char* virtual_path, char* real_path) {
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG, "%s: virtual_path=\"%s\", drive_path=\"%s\"", __func__, virtual_path, folder->path);
+
+    /* Get drive path */
+    char* path = folder->path;
+
+    int i;
+
+    /* Start with path from settings */
+    for (i=0; i<GUAC_SPICE_FOLDER_MAX_PATH-1; i++) {
+
+        /* Break on end-of-string */
+        char c = *(path++);
+        if (c == 0)
+            break;
+
+        /* Copy character */
+        *(real_path++) = c;
+
+    }
+
+    /* Translate path */
+    for (; i<GUAC_SPICE_FOLDER_MAX_PATH-1; i++) {
+
+        /* Stop at end of string */
+        char c = *(virtual_path++);
+        if (c == 0)
+            break;
+
+        /* Translate backslashes to forward slashes */
+        if (c == '\\')
+            c = '/';
+
+        /* Store in real path buffer */
+        *(real_path++)= c;
+
+    }
+
+    /* Null terminator */
+    *real_path = 0;
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG, "%s: virtual_path=\"%s\", real_path=\"%s\"", __func__, virtual_path, real_path);
+
+}
+
+guac_spice_folder* guac_spice_folder_alloc(guac_client* client, const char* folder_path,
+        int create_folder, int disable_download, int disable_upload) {
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Initializing shared folder at "
+            "\"%s\".", folder_path);
+
+    /* Create folder if it does not exist */
+    if (create_folder) {
+        guac_client_log(client, GUAC_LOG_DEBUG,
+               "%s: Creating folder \"%s\" if necessary.",
+               __func__, folder_path);
+
+        /* Log error if directory creation fails */
+        if (mkdir(folder_path, S_IRWXU) && errno != EEXIST) {
+            guac_client_log(client, GUAC_LOG_ERROR,
+                    "Unable to create folder \"%s\": %s",
+                    folder_path, strerror(errno));
+        }
+    }
+
+    guac_spice_folder* folder = malloc(sizeof(guac_spice_folder));
+
+    folder->client = client;
+    folder->path = strdup(folder_path);
+    folder->file_id_pool = guac_pool_alloc(0);
+    folder->open_files = 0;
+    folder->disable_download = disable_download;
+    folder->disable_upload = disable_upload;
+
+    /* Set up Download directory and watch it. */
+    if (!disable_download) {
+
+        guac_client_log(client, GUAC_LOG_DEBUG, "%s: Setting up Download/ folder watch.", __func__);
+
+        if (create_folder) {
+            guac_client_log(client, GUAC_LOG_DEBUG, "%s: Creating Download/ folder.",
+                    __func__);
+
+            char *download_path;
+            download_path = guac_strdup(folder_path);
+
+            guac_strlcat(download_path, "/Download", GUAC_SPICE_FOLDER_MAX_PATH);
+
+            if (mkdir(folder_path, S_IRWXU) && errno != EEXIST) {
+                guac_client_log(client, GUAC_LOG_ERROR,
+                        "%s: Unable to create folder \"%s\": %s", __func__,
+                        download_path, strerror(errno));
+            }
+
+        }
+
+        if(pthread_create(&(folder->download_thread), NULL, guac_spice_file_download_monitor, (void*) folder)) {
+            guac_client_log(client, GUAC_LOG_ERROR,
+                    "%s: Unable to create Download folder thread monitor.", __func__);
+        }
+
+    }
+
+    return folder;
+
+}
+
+void guac_spice_folder_free(guac_spice_folder* folder) {
+    guac_pool_free(folder->file_id_pool);
+    free(folder->path);
+    free(folder);
+}
+
+guac_object* guac_spice_folder_alloc_object(guac_spice_folder *folder, guac_user* user) {
+    
+    /* Init folder */
+    guac_object* folder_object = guac_user_alloc_object(user);
+    folder_object->get_handler = guac_spice_file_download_get_handler;
+    
+    /* Assign upload handler only if uploads are not disabled. */
+    if (!folder->disable_upload)
+        folder_object->put_handler = guac_spice_file_upload_put_handler;
+    
+    folder_object->data = folder;
+
+    /* Send filesystem to user */
+    guac_protocol_send_filesystem(user->socket, folder_object, "Shared Folder");
+    guac_socket_flush(user->socket);
+
+    return folder_object;
+
+}
+
+int guac_spice_folder_append_filename(char* fullpath, const char* path,
+        const char* filename) {
+
+    int i;
+
+    /* Disallow "." as a filename */
+    if (strcmp(filename, ".") == 0)
+        return 0;
+
+    /* Disallow ".." as a filename */
+    if (strcmp(filename, "..") == 0)
+        return 0;
+
+    /* Copy path, append trailing slash */
+    for (i=0; i<GUAC_SPICE_FOLDER_MAX_PATH; i++) {
+
+        /*
+         * Append trailing slash only if:
+         *  1) Trailing slash is not already present
+         *  2) Path is non-empty
+         */
+
+        char c = path[i];
+        if (c == '\0') {
+            if (i > 0 && path[i-1] != '/' && path[i-1] != '\\')
+                fullpath[i++] = '/';
+            break;
+        }
+
+        /* Copy character if not end of string */
+        fullpath[i] = c;
+
+    }
+
+    /* Append filename */
+    for (; i<GUAC_SPICE_FOLDER_MAX_PATH; i++) {
+
+        char c = *(filename++);
+        if (c == '\0')
+            break;
+
+        /* Filenames may not contain slashes */
+        if (c == '\\' || c == '/')
+            return 0;
+
+        /* Append each character within filename */
+        fullpath[i] = c;
+
+    }
+
+    /* Verify path length is within maximum */
+    if (i == GUAC_SPICE_FOLDER_MAX_PATH)
+        return 0;
+
+    /* Terminate path string */
+    fullpath[i] = '\0';
+
+    /* Append was successful */
+    return 1;
+
+}
+
+const char* guac_spice_folder_basename(const char* path) {
+
+    for (const char* c = path; *c != '\0'; c++) {
+
+        /* Reset beginning of path if a path separator is found */
+        if (*c == '/' || *c == '\\')
+            path = c + 1;
+
+    }
+
+    /* path now points to the first character after the last path separator */
+    return path;
+
+}
+
+void guac_spice_folder_close(guac_spice_folder* folder, int file_id) {
+
+    guac_spice_folder_file* file = guac_spice_folder_get_file(folder, file_id);
+    if (file == NULL) {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: Ignoring close for bad file_id: %i",
+                __func__, file_id);
+        return;
+    }
+
+    file = &(folder->files[file_id]);
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG,
+            "%s: Closed \"%s\" (file_id=%i)",
+            __func__, file->absolute_path, file_id);
+
+    /* Close directory, if open */
+    if (file->dir != NULL)
+        closedir(file->dir);
+
+    /* Close file */
+    close(file->fd);
+
+    /* Free paths */
+    free(file->absolute_path);
+    free(file->real_path);
+
+    /* Free ID back to pool */
+    guac_pool_free_int(folder->file_id_pool, file_id);
+    folder->open_files--;
+
+}
+
+int guac_spice_folder_delete(guac_spice_folder* folder, int file_id) {
+
+    /* Get file */
+    guac_spice_folder_file* file = guac_spice_folder_get_file(folder, file_id);
+    if (file == NULL) {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: Delete of bad file_id: %i", __func__, file_id);
+        return GUAC_SPICE_FOLDER_EINVAL;
+    }
+
+    /* If directory, attempt removal */
+    if (S_ISDIR(file->stmode)) {
+        if (rmdir(file->real_path)) {
+            guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                    "%s: rmdir() failed: \"%s\"", __func__, file->real_path);
+            return guac_spice_folder_get_errorcode(errno);
+        }
+    }
+
+    /* Otherwise, attempt deletion */
+    else if (unlink(file->real_path)) {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: unlink() failed: \"%s\"", __func__, file->real_path);
+        return guac_spice_folder_get_errorcode(errno);
+    }
+
+    return 0;
+
+}
+
+void* guac_spice_folder_expose(guac_user* user, void* data) {
+
+    guac_spice_folder* folder = (guac_spice_folder*) data;
+
+    guac_user_log(user, GUAC_LOG_DEBUG, "%s: Exposing folder \"%s\" to user.", __func__, folder->path);
+
+    /* No need to expose if there is no folder or the user has left */
+    if (user == NULL || folder == NULL)
+        return NULL;
+
+    /* Allocate and expose folder object for user */
+    return guac_spice_folder_alloc_object(folder, user);
+
+}
+
+int guac_spice_folder_get_errorcode(int err) {
+
+    /* Translate errno codes to GUAC_SPICE_FOLDER codes */
+    switch(err) {
+        case ENFILE:
+            return GUAC_SPICE_FOLDER_ENFILE;
+
+        case ENOENT:
+            return GUAC_SPICE_FOLDER_ENOENT;
+
+        case ENOTDIR:
+            return GUAC_SPICE_FOLDER_ENOTDIR;
+
+        case ENOSPC:
+            return GUAC_SPICE_FOLDER_ENOSPC;
+
+        case EISDIR:
+            return GUAC_SPICE_FOLDER_EISDIR;
+
+        case EACCES:
+            return GUAC_SPICE_FOLDER_EACCES;
+        
+        case EEXIST:
+            return GUAC_SPICE_FOLDER_EEXIST;
+
+        case EINVAL:
+            return GUAC_SPICE_FOLDER_EINVAL;
+
+        case ENOSYS:
+            return GUAC_SPICE_FOLDER_ENOSYS;
+
+        case ENOTSUP:
+            return GUAC_SPICE_FOLDER_ENOTSUP;
+
+        default:
+            return GUAC_SPICE_FOLDER_EINVAL;
+
+    }
+
+}
+
+guac_spice_folder_file* guac_spice_folder_get_file(guac_spice_folder* folder,
+        int file_id) {
+
+    /* Validate ID */
+    if (file_id < 0 || file_id >= GUAC_SPICE_FOLDER_MAX_FILES)
+        return NULL;
+
+    /* Return file at given ID */
+    return &(folder->files[file_id]);
+
+}
+
+int guac_spice_folder_normalize_path(const char* path, char* abs_path) {
+
+    int path_depth = 0;
+    const char* path_components[GUAC_SPICE_FOLDER_MAX_PATH_DEPTH];
+
+    /* If original path is not absolute, normalization fails */
+    if (path[0] != '/')
+        return 1;
+
+    /* Create scratch copy of path excluding leading slash (we will be
+     * replacing path separators with null terminators and referencing those
+     * substrings directly as path components) */
+    char path_scratch[GUAC_SPICE_FOLDER_MAX_PATH - 1];
+    int length = guac_strlcpy(path_scratch, path + 1,
+            sizeof(path_scratch));
+
+    /* Fail if provided path is too long */
+    if (length >= sizeof(path_scratch))
+        return 1;
+
+    /* Locate all path components within path */
+    const char* current_path_component = &(path_scratch[0]);
+    for (int i = 0; i <= length; i++) {
+
+        /* If current character is a path separator, parse as component */
+        char c = path_scratch[i];
+        if (c == '/' || c == '\0') {
+
+            /* Terminate current component */
+            path_scratch[i] = '\0';
+
+            /* If component refers to parent, just move up in depth */
+            if (strcmp(current_path_component, "..") == 0) {
+                if (path_depth > 0)
+                    path_depth--;
+            }
+
+            /* Otherwise, if component not current directory, add to list */
+            else if (strcmp(current_path_component, ".") != 0
+                    && strcmp(current_path_component, "") != 0) {
+
+                /* Fail normalization if path is too deep */
+                if (path_depth >= GUAC_SPICE_FOLDER_MAX_PATH_DEPTH)
+                    return 1;
+
+                path_components[path_depth++] = current_path_component;
+
+            }
+
+            /* Update start of next component */
+            current_path_component = &(path_scratch[i+1]);
+
+        } /* end if separator */
+
+        /* We do not currently support named streams */
+        else if (c == ':')
+            return 1;
+
+    } /* end for each character */
+
+    /* Add leading slash for resulting absolute path */
+    abs_path[0] = '/';
+
+    /* Append normalized components to path, separated by slashes */
+    guac_strljoin(abs_path + 1, path_components, path_depth,
+            "/", GUAC_SPICE_FOLDER_MAX_PATH - 1);
+
+    return 0;
+
+}
+
+int guac_spice_folder_open(guac_spice_folder* folder, const char* path,
+        int flags, bool overwrite, bool directory) {
+
+    char real_path[GUAC_SPICE_FOLDER_MAX_PATH];
+    char normalized_path[GUAC_SPICE_FOLDER_MAX_PATH];
+
+    struct stat file_stat;
+    int fd;
+    int file_id;
+    guac_spice_folder_file* file;
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG,
+            "%s: path=\"%s\", flags=0x%x, overwrite=0x%x, "
+            "directory=0x%x", __func__, path, flags, overwrite, directory);
+
+    /* If no files available, return too many open */
+    if (folder->open_files >= GUAC_SPICE_FOLDER_MAX_FILES) {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: Too many open files.",
+                __func__, path);
+        return GUAC_SPICE_FOLDER_ENFILE;
+    }
+
+    /* If path empty, return an error */
+    if (path[0] == '\0')
+        return GUAC_SPICE_FOLDER_EINVAL;
+
+    /* If path is relative, the file does not exist */
+    else if (path[0] != '\\' && path[0] != '/') {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: Access denied - supplied path \"%s\" is relative.",
+                __func__, path);
+        return GUAC_SPICE_FOLDER_ENOENT;
+    }
+
+    /* Translate access into flags */
+    if (directory)
+        flags |= O_DIRECTORY;
+
+    else if (overwrite)
+        flags |= O_TRUNC;
+
+    /* Normalize path, return no-such-file if invalid  */
+    if (guac_spice_folder_normalize_path(path, normalized_path)) {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: Normalization of path \"%s\" failed.", __func__, path);
+        return GUAC_SPICE_FOLDER_ENOENT;
+    }
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG,
+            "%s: Normalized path \"%s\" to \"%s\".",
+            __func__, path, normalized_path);
+
+        /* Translate normalized path to real path */
+    __guac_spice_folder_translate_path(folder, normalized_path, real_path);
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG,
+            "%s: Translated path \"%s\" to \"%s\".",
+            __func__, normalized_path, real_path);
+
+    /* Create directory first, if necessary */
+    if (directory && (flags & O_CREAT)) {
+
+        /* Create directory */
+        if (mkdir(real_path, S_IRWXU)) {
+            if (errno != EEXIST || (flags & O_EXCL)) {
+                guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                        "%s: mkdir() failed: %s",
+                        __func__, strerror(errno));
+                return guac_spice_folder_get_errorcode(errno);
+            }
+        }
+
+        /* Unset O_CREAT and O_EXCL as directory must exist before open() */
+        flags &= ~(O_CREAT | O_EXCL);
+
+    }
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG,
+            "%s: native open: real_path=\"%s\", flags=0x%x",
+            __func__, real_path, flags);
+
+    /* Open file */
+    fd = open(real_path, flags, S_IRUSR | S_IWUSR);
+
+    /* If file open failed as we're trying to write a dir, retry as read-only */
+    if (fd == -1 && errno == EISDIR) {
+        flags &= ~(O_WRONLY | O_RDWR);
+        flags |= O_RDONLY;
+        fd = open(real_path, flags, S_IRUSR | S_IWUSR);
+    }
+
+    if (fd == -1) {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: open() failed: %s", __func__, strerror(errno));
+        return guac_spice_folder_get_errorcode(errno);
+    }
+
+    /* Get file ID, init file */
+    file_id = guac_pool_next_int(folder->file_id_pool);
+    file = &(folder->files[file_id]);
+    file->id = file_id;
+    file->fd  = fd;
+    file->dir = NULL;
+    file->dir_pattern[0] = '\0';
+    file->absolute_path = strdup(normalized_path);
+    file->real_path = strdup(real_path);
+    file->bytes_written = 0;
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG,
+            "%s: Opened \"%s\" as file_id=%i",
+            __func__, normalized_path, file_id);
+
+    /* Attempt to pull file information */
+    if (fstat(fd, &file_stat) == 0) {
+
+        /* Load size and times */
+        file->size  = file_stat.st_size;
+        file->ctime = file_stat.st_ctime;
+        file->mtime = file_stat.st_mtime;
+        file->atime = file_stat.st_atime;
+        file->stmode = file_stat.st_mode;
+
+    }
+
+    /* If information cannot be retrieved, fake it */
+    else {
+
+        /* Init information to 0, lacking any alternative */
+        file->size  = 0;
+        file->ctime = 0;
+        file->mtime = 0;
+        file->atime = 0;
+        file->stmode = 0;
+
+    }
+
+    folder->open_files++;
+
+    return file_id;
+
+}
+
+int guac_spice_folder_read(guac_spice_folder* folder, int file_id, uint64_t offset,
+        void* buffer, int length) {
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG, "%s: Attempt to read from file: %s", __func__, folder->path);
+
+    int bytes_read;
+
+    guac_spice_folder_file* file = guac_spice_folder_get_file(folder, file_id);
+    if (file == NULL) {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: Read from bad file_id: %i", __func__, file_id);
+        return GUAC_SPICE_FOLDER_EINVAL;
+    }
+
+    /* Attempt read */
+    lseek(file->fd, offset, SEEK_SET);
+    bytes_read = read(file->fd, buffer, length);
+
+    /* Translate errno on error */
+    if (bytes_read < 0)
+        return guac_spice_folder_get_errorcode(errno);
+
+    return bytes_read;
+
+}
+
+const char* guac_spice_folder_read_dir(guac_spice_folder* folder, int file_id) {
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG, "%s: Attempt to read directory: %s", __func__, folder->path);
+
+    guac_spice_folder_file* file;
+
+    struct dirent* result;
+
+    /* Only read if file ID is valid */
+    if (file_id < 0 || file_id >= GUAC_SPICE_FOLDER_MAX_FILES)
+        return NULL;
+
+    file = &(folder->files[file_id]);
+
+    /* Open directory if not yet open, stop if error */
+    if (file->dir == NULL) {
+        file->dir = fdopendir(file->fd);
+        if (file->dir == NULL)
+            return NULL;
+    }
+
+    /* Read next entry, stop if error or no more entries */
+    if ((result = readdir(file->dir)) == NULL)
+        return NULL;
+
+    /* Return filename */
+    return result->d_name;
+
+}
+
+int guac_spice_folder_write(guac_spice_folder* folder, int file_id, uint64_t offset,
+        void* buffer, int length) {
+
+    guac_client_log(folder->client, GUAC_LOG_DEBUG, "%s: Attempt to write file: %s", __func__, folder->path);
+
+    int bytes_written;
+
+    guac_spice_folder_file* file = guac_spice_folder_get_file(folder, file_id);
+    if (file == NULL) {
+        guac_client_log(folder->client, GUAC_LOG_DEBUG,
+                "%s: Write to bad file_id: %i", __func__, file_id);
+        return GUAC_SPICE_FOLDER_EINVAL;
+    }
+
+    /* Attempt write */
+    lseek(file->fd, offset, SEEK_SET);
+    bytes_written = write(file->fd, buffer, length);
+
+    /* Translate errno on error */
+    if (bytes_written < 0)
+        return guac_spice_folder_get_errorcode(errno);
+
+    file->bytes_written += bytes_written;
+    return bytes_written;
+
+}
+
+void guac_spice_client_file_transfer_handler(SpiceMainChannel* main_channel,
+        SpiceFileTransferTask* task, guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "File transfer handler.");
+    
+}
+
+#include "file.h"

src/protocols/spice/channels/file.h

@@ -0,0 +1,461 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+
+#ifndef GUAC_SPICE_FILE_H
+#define GUAC_SPICE_FILE_H
+
+#include "config.h"
+
+#include "spice-constants.h"
+
+#include <guacamole/client.h>
+#include <guacamole/object.h>
+#include <guacamole/pool.h>
+#include <guacamole/user.h>
+
+#include <dirent.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+/**
+ * An arbitrary file on the shared folder.
+ */
+typedef struct guac_spice_folder_file {
+
+    /**
+     * The ID of this file.
+     */
+    int id;
+
+    /**
+     * The absolute path, including filename, of this file on the simulated filesystem.
+     */
+    char* absolute_path;
+
+    /**
+     * The real path, including filename, of this file on the local filesystem.
+     */
+    char* real_path;
+
+    /**
+     * Associated local file descriptor.
+     */
+    int fd;
+
+    /**
+     * Associated directory stream, if any. This field only applies
+     * if the file is being used as a directory.
+     */
+    DIR* dir;
+
+    /**
+     * The pattern the check directory contents against, if any.
+     */
+    char dir_pattern[GUAC_SPICE_FOLDER_MAX_PATH];
+
+    /**
+     * The size of this file, in bytes.
+     */
+    uint64_t size;
+
+    /**
+     * The time this file was created, as a UNIX timestamp.
+     */
+    uint64_t ctime;
+
+    /**
+     * The time this file was last modified, as a UNIX timestamp.
+     */
+    uint64_t mtime;
+
+    /**
+     * The time this file was last accessed, as a UNIX timestamp.
+     */
+    uint64_t atime;
+
+    /**
+     * THe mode field of the file, as retrieved by a call to the stat() family
+     * of functions;
+     */
+    mode_t stmode;
+
+    /**
+     * The number of bytes written to the file.
+     */
+    uint64_t bytes_written;
+
+} guac_spice_folder_file;
+
+/**
+ * A shared folder for the Spice protocol.
+ */
+typedef struct guac_spice_folder {
+
+    /**
+     * The guac_client object this folder is associated with.
+     */
+    guac_client* client;
+
+    /**
+     * The path to the shared folder.
+     */
+    char* path;
+
+    /**
+     * The number of currently open files in the folder.
+     */
+    int open_files;
+
+    /**
+     * A pool of file IDs.
+     */
+    guac_pool* file_id_pool;
+
+    /**
+     * All available file structures.
+     */
+    guac_spice_folder_file files[GUAC_SPICE_FOLDER_MAX_FILES];
+
+    /**
+     * Whether uploads from the client to the shared folder should be disabled.
+     */
+    int disable_download;
+
+    /**
+     * Whether downloads from the shared folder to the client should be disabled.
+     */
+    int disable_upload;
+
+    /**
+     * Thread which watches the Download folder and triggers the automatic
+     * download of files within this subfolder.
+     */
+    pthread_t download_thread;
+
+} guac_spice_folder;
+
+/**
+ * Allocates a new filesystem given a root path which will be shared with the
+ * user and the remote server via WebDAV.
+ *
+ * @param client
+ *     The guac_client associated with the current RDP session.
+ *
+ * @param folder_path
+ *     The local directory to use as the root directory of the shared folder.
+ *
+ * @param create_folder
+ *     Non-zero if the folder at the path specified should be automatically
+ *     created if it does not yet exist, zero otherwise.
+ * 
+ * @param disable_download
+ *     Non-zero if downloads from the remote server to the local browser should
+ *     be disabled.
+ * 
+ * @param disable_upload
+ *     Non-zero if uploads from the browser to the remote server should be
+ *     disabled.
+ *
+ * @return
+ *     The newly-allocated filesystem.
+ */
+guac_spice_folder* guac_spice_folder_alloc(guac_client* client, const char* folder_path,
+        int create_folder, int disable_download, int disable_upload);
+
+/**
+ * Frees the given filesystem.
+ *
+ * @param folder
+ *     The folder to free.
+ */
+void guac_spice_folder_free(guac_spice_folder* folder);
+
+/**
+ * Creates and exposes a new filesystem guac_object to the given user,
+ * providing access to the files within the given Spice shared folder. The
+ * allocated guac_object must eventually be freed via guac_user_free_object().
+ *
+ * @param folder
+ *     The guac_spice_folder object to expose.
+ *
+ * @param user
+ *     The user that the folder should be exposed to.
+ *
+ * @return
+ *     A new Guacamole filesystem object, configured to use Spice for uploading
+ *     and downloading files.
+ */
+guac_object* guac_spice_folder_alloc_object(guac_spice_folder* folder, guac_user* user);
+
+/**
+ * Concatenates the given filename with the given path, separating the two
+ * with a single forward slash. The full result must be no more than
+ * GUAC_SPICE_FOLDER_MAX_PATH bytes long, counting null terminator.
+ *
+ * @param fullpath
+ *     The buffer to store the result within. This buffer must be at least
+ *     GUAC_SPICE_FOLDER_MAX_PATH bytes long.
+ *
+ * @param path
+ *     The path to append the filename to.
+ *
+ * @param filename
+ *     The filename to append to the path.
+ *
+ * @return
+ *     Non-zero if the filename is valid and was successfully appended to the
+ *     path, zero otherwise.
+ */
+int guac_spice_folder_append_filename(char* fullpath, const char* path,
+        const char* filename);
+
+/**
+ * Given an arbitrary path, returns a pointer to the first character following
+ * the last path separator in the path (the basename of the path). For example,
+ * given "/foo/bar/baz", this function would return a pointer to "baz".
+ *
+ * @param path
+ *     The path to determine the basename of.
+ *
+ * @return
+ *     A pointer to the first character of the basename within the path.
+ */
+const char* guac_spice_folder_basename(const char* path);
+
+/**
+ * Frees the given file ID, allowing future open operations to reuse it.
+ *
+ * @param folder
+ *     The folder containing the file to close.
+ *
+ * @param file_id
+ *     The ID of the file to close, as returned by guac_spice_folder_open().
+ */
+void guac_spice_folder_close(guac_spice_folder* folder, int file_id);
+
+/**
+ * Deletes the file with the given ID.
+ *
+ * @param folder
+ *     The folder containing the file to delete.
+ *
+ * @param file_id
+ *     The ID of the file to delete, as returned by guac_spice_folder_open().
+ *
+ * @return
+ *     Zero if deletion succeeded, or an error code if an error occurs. All
+ *     error codes are negative values and correspond to GUAC_SPICE_FOLDER
+ *     constants, such as GUAC_SPICE_FOLDER_ENOENT.
+ */
+int guac_spice_folder_delete(guac_spice_folder* folder, int file_id);
+
+/**
+ * Allocates a new filesystem guac_object for the given user, returning the
+ * resulting guac_object. This function is provided for convenience, as it is
+ * can be used as the callback for guac_client_foreach_user() or
+ * guac_client_for_owner(). Note that this guac_object will be tracked
+ * internally by libguac, will be provided to us in the parameters of handlers
+ * related to that guac_object, and will automatically be freed when the
+ * associated guac_user is freed, so the return value of this function can
+ * safely be ignored.
+ *
+ * If either the given user or the given filesystem are NULL, then this
+ * function has no effect.
+ *
+ * @param user
+ *     The use to expose the filesystem to, or NULL if nothing should be
+ *     exposed.
+ *
+ * @param data
+ *     A pointer to the guac_spice_folder instance to expose to the given user,
+ *     or NULL if nothing should be exposed.
+ *
+ * @return
+ *     The guac_object allocated for the newly-exposed filesystem, or NULL if
+ *     no filesystem object could be allocated.
+ */
+void* guac_spice_folder_expose(guac_user* user, void* data);
+
+/**
+ * Translates the given errno error code to a GUAC_SPICE_FOLDER error code.
+ *
+ * @param err
+ *     The error code, as returned within errno by a system call.
+ *
+ * @return
+ *     A GUAC_SPICE_FOLDER error code, such as GUAC_SPICE_FOLDER_ENFILE,
+ *     GUAC_SPICE_FOLDER_ENOENT, etc.
+ */
+int guac_spice_folder_get_errorcode(int err);
+
+/**
+ * Returns the file having the given ID, or NULL if no such file exists.
+ *
+ * @param folder
+ *     The folder containing the desired file.
+ *
+ * @param file_id
+ *     The ID of the desired, as returned by guac_spice_folder_open().
+ *
+ * @return
+ *     The file having the given ID, or NULL is no such file exists.
+ */
+guac_spice_folder_file* guac_spice_folder_get_file(guac_spice_folder* folder,
+        int file_id);
+
+/**
+ * Given an arbitrary path, which may contain ".." and ".", creates an
+ * absolute path which does NOT contain ".." or ".". The given path MUST
+ * be absolute.
+ *
+ * @param path
+ *     The path to normalize.
+ *
+ * @param abs_path
+ *     The buffer to populate with the normalized path. The normalized path
+ *     will not contain relative path components like ".." or ".".
+ *
+ * @return
+ *     Zero if normalization succeeded, non-zero otherwise.
+ */
+int guac_spice_folder_normalize_path(const char* path, char* abs_path);
+
+/**
+ * Opens the given file, returning the a new file ID, or an error code less
+ * than zero if an error occurs. The given path MUST be absolute, and will be
+ * translated to be relative to the drive path of the simulated filesystem.
+ *
+ * @param folder
+ *     The shared folder to use when opening the file.
+ *
+ * @param path
+ *     The absolute path to the file within the simulated filesystem.
+ *
+ * @param flags
+ *     A bitwise-OR of various standard POSIX flags to use when opening the
+ *     file or directory.
+ *
+ * @param overwrite
+ *     True if the file should be overwritten when opening it, otherwise false.
+ *
+ * @param directory
+ *     True if the path specified is a directory, otherwise false.
+ *
+ * @return
+ *     A new file ID, which will always be a positive value, or an error code
+ *     if an error occurs. All error codes are negative values and correspond
+ *     to GUAC_SPICE_FOLDER constants, such as GUAC_SPICE_FOLDER_ENOENT.
+ */
+int guac_spice_folder_open(guac_spice_folder* folder, const char* path,
+        int flags, bool overwrite, bool directory);
+
+/**
+ * Reads up to the given length of bytes from the given offset within the
+ * file having the given ID. Returns the number of bytes read, zero on EOF,
+ * and an error code if an error occurs.
+ *
+ * @param folder
+ *     The folder containing the file from which data is to be read.
+ *
+ * @param file_id
+ *     The ID of the file to read data from, as returned by guac_spice_folder_open().
+ *
+ * @param offset
+ *     The byte offset within the file to start reading from.
+ *
+ * @param buffer
+ *     The buffer to fill with data from the file.
+ *
+ * @param length
+ *     The maximum number of bytes to read from the file.
+ *
+ * @return
+ *     The number of bytes actually read, zero on EOF, or an error code if an
+ *     error occurs. All error codes are negative values and correspond to
+ *     GUAC_SPICE_FOLDER constants, such as GUAC_SPICE_FOLDER_ENOENT.
+ */
+int guac_spice_folder_read(guac_spice_folder* folder, int file_id, uint64_t offset,
+        void* buffer, int length);
+
+/**
+ * Returns the next filename within the directory having the given file ID,
+ * or NULL if no more files.
+ *
+ * @param folder
+ *     The foleer containing the file to read directory entries from.
+ *
+ * @param file_id
+ *     The ID of the file to read directory entries from, as returned by
+ *     guac_spice_folder_open().
+ *
+ * @return
+ *     The name of the next filename within the directory, or NULL if the last
+ *     file in the directory has already been returned by a previous call.
+ */
+const char* guac_spice_folder_read_dir(guac_spice_folder* folder, int file_id);
+
+/**
+ * Writes up to the given length of bytes from the given offset within the
+ * file having the given ID. Returns the number of bytes written, and an
+ * error code if an error occurs.
+ *
+ * @param folder
+ *     The folder containing the file to which data is to be written.
+ *
+ * @param file_id
+ *     The ID of the file to write data to, as returned by guac_spice_folder_open().
+ *
+ * @param offset
+ *     The byte offset within the file to start writinging at.
+ *
+ * @param buffer
+ *     The buffer containing the data to write.
+ *
+ * @param length
+ *     The maximum number of bytes to write to the file.
+ *
+ * @return
+ *     The number of bytes actually written, or an error code if an error
+ *     occurs. All error codes are negative values and correspond to
+ *     GUAC_SPICE_FOLDER constants, such as GUAC_SPICE_FOLDER_ENOENT.
+ */
+int guac_spice_folder_write(guac_spice_folder* folder, int file_id, uint64_t offset,
+        void* buffer, int length);
+
+/**
+ * A handler that is called when the SPICE client receives notification of 
+ * a new file transfer task.
+ * 
+ * @param main_channel
+ *     The main channel associated with the SPICE session.
+ * 
+ * @param task
+ *     The file transfer task that triggered this function call.
+ * 
+ * @param client
+ *     The guac_client object associated with this session.
+ */
+void guac_spice_client_file_transfer_handler(SpiceMainChannel* main_channel,
+        SpiceFileTransferTask* task, guac_client* client);
+
+#endif /* GUAC_SPICE_FILE_H */
+

src/protocols/spice/client.c

@@ -0,0 +1,382 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "auth.h"
+#include "client.h"
+#include "channels/audio.h"
+#include "channels/clipboard.h"
+#include "channels/cursor.h"
+#include "channels/display.h"
+#include "channels/file.h"
+#include "input.h"
+#include "keyboard.h"
+#include "user.h"
+#include "spice.h"
+#include "spice-constants.h"
+
+#ifdef ENABLE_COMMON_SSH
+#include "common-ssh/sftp.h"
+#include "common-ssh/ssh.h"
+#include "common-ssh/user.h"
+#endif
+
+#include <guacamole/client.h>
+#include <guacamole/recording.h>
+
+#include <glib/gmain.h>
+#include <pthread.h>
+#include <spice-client-glib-2.0/spice-client.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * Handle events for the main Spice channel, taking the appropriate action
+ * for known events, and logging warnings for unknowns and non-fatal events.
+ * 
+ * @param channel
+ *     The channel for which to handle events.
+ * 
+ * @param event
+ *     The event that is being handled.
+ * 
+ * @param client
+ *     The guacamole_client associated with this event.
+ */
+static void guac_spice_client_main_channel_handler(SpiceChannel *channel,
+        SpiceChannelEvent event, guac_client* client) {
+    
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_client_log(client, GUAC_LOG_DEBUG, "Received new main channel event: %u", event);
+    
+    /* Handle the various possible SPICE events. */
+    switch (event) {
+        
+        /* Channel has been closed, so we abort the connection. */
+        case SPICE_CHANNEL_CLOSED:
+            guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR,
+                    "Disconnected from Spice server.");
+            break;
+            
+        /* Channel has been opened - log it and do nothing else. */
+        case SPICE_CHANNEL_OPENED:
+            guac_client_log(client, GUAC_LOG_DEBUG, "Channel opened.");
+            break;
+            
+        /* Error authenticating, log a warning and prompt user. */
+        case SPICE_CHANNEL_ERROR_AUTH:
+            guac_client_log(client, GUAC_LOG_WARNING,
+                    "Channel authentication failed.");
+            
+            /* Trigger a credential prompt. */
+            if (guac_spice_get_credentials(client) 
+                    && spice_session_connect(spice_client->spice_session))
+                guac_client_log(client, GUAC_LOG_DEBUG, "Session connection started.");
+            
+            else
+                guac_client_abort(client,
+                        GUAC_PROTOCOL_STATUS_CLIENT_UNAUTHORIZED,
+                        "Failed to get credentials to connect to server.");
+            
+            break;
+            
+        /* TLS error, abort the connection with a warning. */
+        case SPICE_CHANNEL_ERROR_TLS:
+            guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR,
+                    "TLS failure connecting to Spice server.");
+            break;
+            
+        /* I/O error, abort the connection with a warning. */
+        case SPICE_CHANNEL_ERROR_IO:
+            guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR,
+                    "IO error communicating with Spice server.");
+            break;
+            
+        /* SPICE link error, abort the connection with a warning. */
+        case SPICE_CHANNEL_ERROR_LINK:
+            guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR,
+                    "Link error communicating with Spice server.");
+            break;
+            
+        /* Connect error, abort the connection with a warning. */
+        case SPICE_CHANNEL_ERROR_CONNECT:
+            guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR,
+                    "Connection error communicating with Spice server.");
+            break;
+            
+        /* Some other unknown event - log it and move on. */
+        default:
+            guac_client_log(client, GUAC_LOG_WARNING,
+                    "Unknown event received on channel.");
+    }
+    
+}
+
+int guac_client_init(guac_client* client) {
+
+    /* Set client args */
+    client->args = GUAC_SPICE_CLIENT_ARGS;
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Initializing Spice client.");
+
+    /* Alloc client data */
+    guac_spice_client* spice_client = calloc(1, sizeof(guac_spice_client));
+    client->data = spice_client;
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Initializing clipboard.");
+
+    /* Init clipboard */
+    spice_client->clipboard =
+            guac_common_clipboard_alloc(GUAC_SPICE_CLIPBOARD_MAX_LENGTH);
+
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Setting up user handlers.");
+
+    /* Set handlers */
+    client->join_handler = guac_spice_user_join_handler;
+    client->leave_handler = guac_spice_user_leave_handler;
+    client->free_handler = guac_spice_client_free_handler;
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Setting up mutex locks.");
+
+    /* Recursive attribute for locks */
+    pthread_mutexattr_init(&(spice_client->attributes));
+    pthread_mutexattr_settype(&(spice_client->attributes),
+            PTHREAD_MUTEX_RECURSIVE);
+
+    /* Init required locks */
+    pthread_rwlock_init(&(spice_client->lock), NULL);
+    pthread_mutex_init(&(spice_client->message_lock), &(spice_client->attributes));
+
+    return 0;
+}
+
+int guac_spice_client_free_handler(guac_client* client) {
+
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_spice_settings* settings = spice_client->settings;
+
+    /* Clean up SPICE client*/
+    SpiceSession* spice_session = spice_client->spice_session;
+    if (spice_session != NULL) {
+
+        /* Wait for client thread to finish */
+        pthread_join(spice_client->client_thread, NULL);
+        
+        /* Disconnect the session, destroying data */
+        spice_session_disconnect(spice_session);
+
+        /* Free up the glib main loop. */
+        g_main_loop_unref(spice_client->spice_mainloop);
+
+    }
+
+#ifdef ENABLE_COMMON_SSH
+    /* Free SFTP filesystem, if loaded */
+    if (spice_client->sftp_filesystem)
+        guac_common_ssh_destroy_sftp_filesystem(spice_client->sftp_filesystem);
+
+    /* Free SFTP session */
+    if (spice_client->sftp_session)
+        guac_common_ssh_destroy_session(spice_client->sftp_session);
+
+    /* Free SFTP user */
+    if (spice_client->sftp_user)
+        guac_common_ssh_destroy_user(spice_client->sftp_user);
+
+    guac_common_ssh_uninit();
+#endif
+
+    /* Clean up recording, if in progress */
+    if (spice_client->recording != NULL)
+        guac_recording_free(spice_client->recording);
+
+    /* Free clipboard */
+    if (spice_client->clipboard != NULL)
+        guac_common_clipboard_free(spice_client->clipboard);
+
+    /* Free display */
+    if (spice_client->display != NULL)
+        guac_common_display_free(spice_client->display);
+
+    /* Free SPICE keyboard state */
+    guac_spice_keyboard_free(spice_client->keyboard);
+    spice_client->keyboard = NULL;
+
+    /* Free parsed settings */
+    if (settings != NULL)
+        guac_spice_settings_free(settings);
+
+    pthread_rwlock_destroy(&(spice_client->lock));
+    pthread_mutex_destroy(&(spice_client->message_lock));
+
+    /* Free generic data struct */
+    free(client->data);
+
+    return 0;
+}
+
+void guac_spice_client_channel_handler(SpiceSession *spice_session,
+        SpiceChannel *channel, guac_client* client) {
+    
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_spice_settings* settings = spice_client->settings;
+    int id, type;
+    
+    /* Get the channel ID and type. */
+    g_object_get(channel, SPICE_PROPERTY_CHANNEL_ID, &id, NULL);
+    g_object_get(channel, SPICE_PROPERTY_CHANNEL_TYPE, &type, NULL);
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "New channel created: %i", id);
+    guac_client_log(client, GUAC_LOG_DEBUG, "New channel type: %i", type);
+    
+    /* Check if this is the main channel and register handlers. */
+    if (SPICE_IS_MAIN_CHANNEL(channel)) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Setting up main channel.");
+        spice_client->main_channel = SPICE_MAIN_CHANNEL(channel);
+
+        /* Register the main channel event handler and return. */
+        g_signal_connect(channel, SPICE_SIGNAL_CHANNEL_EVENT,
+                G_CALLBACK(guac_spice_client_main_channel_handler), client);
+
+        /* Register clipboard handlers. */
+        g_signal_connect(channel, SPICE_SIGNAL_MAIN_CLIPBOARD_SELECTION,
+                G_CALLBACK(guac_spice_clipboard_selection_handler), client);
+        g_signal_connect(channel, SPICE_SIGNAL_MAIN_CLIPBOARD_SELECTION_GRAB,
+                G_CALLBACK(guac_spice_clipboard_selection_grab_handler), client);
+        g_signal_connect(channel, SPICE_SIGNAL_MAIN_CLIPBOARD_SELECTION_RELEASE,
+                G_CALLBACK(guac_spice_clipboard_selection_release_handler), client);
+        g_signal_connect(channel, SPICE_SIGNAL_MAIN_CLIPBOARD_SELECTION_REQUEST,
+                G_CALLBACK(guac_spice_clipboard_selection_request_handler), client);
+
+        /* Update the main display with our size. */
+        if (client->__owner != NULL)
+            spice_main_channel_update_display(spice_client->main_channel,
+                GUAC_SPICE_DEFAULT_DISPLAY_ID,
+                0,
+                0,
+                client->__owner->info.optimal_width,
+                client->__owner->info.optimal_height, TRUE);
+        return;
+    }
+    
+    /* Check if this is the display channel and register display handlers. */
+    if (SPICE_IS_DISPLAY_CHANNEL(channel) && id == 0) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Setting up display channel.");
+        int width, height;
+        SpiceDisplayPrimary primary;
+        g_object_get(channel, "width", &width, "height", &height, NULL);
+        spice_client->spice_display = SPICE_DISPLAY_CHANNEL(channel);
+        spice_client->display = guac_common_display_alloc(client, width, height);
+
+        /* Register callbacks fr the various display signals. */
+        g_signal_connect(channel, SPICE_SIGNAL_DISPLAY_INVALIDATE,
+                G_CALLBACK(guac_spice_client_display_update), client);
+        g_signal_connect(channel, SPICE_SIGNAL_DISPLAY_MARK,
+                G_CALLBACK(guac_spice_client_display_mark), client);
+        g_signal_connect(channel, SPICE_SIGNAL_DISPLAY_PRIMARY_CREATE,
+                G_CALLBACK(guac_spice_client_display_primary_create), client);
+        g_signal_connect(channel, SPICE_SIGNAL_DISPLAY_PRIMARY_DESTROY,
+                G_CALLBACK(guac_spice_client_display_primary_destroy), client);
+        g_signal_connect(channel, SPICE_SIGNAL_GL_DRAW,
+                G_CALLBACK(guac_spice_client_display_gl_draw), client);
+        g_signal_connect(channel, SPICE_SIGNAL_STREAMING_MODE,
+                G_CALLBACK(guac_spice_client_streaming_handler), client);
+        
+        /* Attempt to get the primary display, and set it up. */
+        if (spice_display_channel_get_primary(channel, 0, &primary)) {
+            guac_spice_client_display_primary_create(
+                    spice_client->spice_display, primary.format,
+                    primary.width, primary.height, primary.stride,
+                    primary.shmid, primary.data, client);
+            guac_spice_client_display_mark(spice_client->spice_display,
+                    primary.marked, client);
+        }
+        
+    }
+    
+    /* Check for audio playback channel and set up the channel. */
+    if (SPICE_IS_PLAYBACK_CHANNEL(channel) && settings->audio_enabled) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Setting up audio playback channel.");
+        spice_client->playback_channel = SPICE_PLAYBACK_CHANNEL(channel);
+        g_signal_connect(channel, SPICE_SIGNAL_PLAYBACK_DATA,
+                G_CALLBACK(guac_spice_client_audio_playback_data_handler), client);
+        g_signal_connect(channel, SPICE_SIGNAL_PLAYBACK_GET_DELAY,
+                G_CALLBACK(guac_spice_client_audio_playback_delay_handler), client);
+        g_signal_connect(channel, SPICE_SIGNAL_PLAYBACK_START,
+                G_CALLBACK(guac_spice_client_audio_playback_start_handler), client);
+        g_signal_connect(channel, SPICE_SIGNAL_PLAYBACK_STOP,
+                G_CALLBACK(guac_spice_client_audio_playback_stop_handler), client);
+    }
+    
+    /* Check for audio recording channel and set up the channel. */
+    if (SPICE_IS_RECORD_CHANNEL(channel) && settings->audio_input_enabled) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Setting up audio record channel.");
+        spice_client->record_channel = SPICE_RECORD_CHANNEL(channel);
+        g_signal_connect(channel, SPICE_SIGNAL_RECORD_START,
+                G_CALLBACK(guac_spice_client_audio_record_start_handler), client);
+        g_signal_connect(channel, SPICE_SIGNAL_RECORD_STOP,
+                G_CALLBACK(guac_spice_client_audio_record_stop_handler), client);
+    }
+    
+    /* Check for cursor channel and set it up. */
+    if (SPICE_IS_CURSOR_CHANNEL(channel)) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Setting up cursor channel.");
+        spice_client->cursor_channel = SPICE_CURSOR_CHANNEL(channel);
+        g_signal_connect(channel, SPICE_SIGNAL_CURSOR_HIDE,
+                G_CALLBACK(guac_spice_cursor_hide), client);
+        g_signal_connect(channel, SPICE_SIGNAL_CURSOR_MOVE,
+                G_CALLBACK(guac_spice_cursor_move), client);
+        g_signal_connect(channel, SPICE_SIGNAL_CURSOR_RESET,
+                G_CALLBACK(guac_spice_cursor_reset), client);
+        g_signal_connect(channel, SPICE_SIGNAL_CURSOR_SET,
+                G_CALLBACK(guac_spice_cursor_set), client);
+    }
+    
+    /* Check if this is an inputs channel and set it up. */
+    if (SPICE_IS_INPUTS_CHANNEL(channel)) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Setting up inputs channel.");
+        spice_client->inputs_channel = SPICE_INPUTS_CHANNEL(channel);
+
+        /* Register callback that sets keyboard modifiers */
+        g_signal_connect(channel, SPICE_SIGNAL_INPUTS_MODIFIERS,
+                G_CALLBACK(guac_spice_keyboard_set_indicators), client);
+    }
+    
+    /* File transfer channel */
+    if (SPICE_IS_WEBDAV_CHANNEL(channel)) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Setting up webdav channel.");
+        if (settings->file_transfer
+                && settings->file_directory != NULL
+                && strcmp(settings->file_directory, "") != 0) {
+        }
+    }
+
+    if (SPICE_IS_USBREDIR_CHANNEL(channel)) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "USB redirection is not yet implemented.");
+        return;
+    }
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Calling spice_channel_connect for channel %d.", id);
+    if (!spice_channel_connect(channel))
+        guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR,
+                "Unable to connect the channel.");
+    
+}

src/protocols/spice/client.h

@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+
+#ifndef GUAC_SPICE_CLIENT_H
+#define GUAC_SPICE_CLIENT_H
+
+#include "config.h"
+
+#include <guacamole/client.h>
+
+#include <spice-client-glib-2.0/spice-client.h>
+
+/**
+ * The maximum duration of a frame in milliseconds.
+ */
+#define GUAC_SPICE_FRAME_DURATION 40
+
+/**
+ * The amount of time to allow per message read within a frame, in
+ * milliseconds. If the server is silent for at least this amount of time, the
+ * frame will be considered finished.
+ */
+#define GUAC_SPICE_FRAME_TIMEOUT 0
+
+/**
+ * The amount of time to wait for a new message from the Spice server when
+ * beginning a new frame. This value must be kept reasonably small such that
+ * a slow Spice server will not prevent external events from being handled (such
+ * as the stop signal from guac_client_stop()), but large enough that the
+ * message handling loop does not eat up CPU spinning.
+ */
+#define GUAC_SPICE_FRAME_START_TIMEOUT 1000000
+
+/**
+ * The number of milliseconds to wait between connection attempts.
+ */
+#define GUAC_SPICE_CONNECT_INTERVAL 1000
+
+/**
+ * The maximum number of bytes to allow within the clipboard.
+ */
+#define GUAC_SPICE_CLIPBOARD_MAX_LENGTH 262144
+
+/**
+ * Handler which frees all data associated with the guac_client.
+ */
+guac_client_free_handler guac_spice_client_free_handler;
+
+/**
+ * Handler for new channel events.
+ */
+void guac_spice_client_channel_handler(SpiceSession *spice_session,
+        SpiceChannel *channel, guac_client* client);
+
+#endif /* GUAC_SPICE_CLIENT_H */
+

src/protocols/spice/decompose.c

@@ -0,0 +1,176 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "keyboard.h"
+
+/**
+ * The X11 keysym for the dead key which types a grave (`).
+ */
+#define DEAD_GRAVE 0xFE50
+
+/**
+ * The X11 keysym for the dead key which types an acute (´). Note that this is
+ * NOT equivalent to an apostrophe or single quote.
+ */
+#define DEAD_ACUTE 0xFE51
+
+/**
+ * The X11 keysym for the dead key which types a circumflex/caret (^).
+ */
+#define DEAD_CIRCUMFLEX 0xFE52
+
+/**
+ * The X11 keysym for the dead key which types a tilde (~).
+ */
+#define DEAD_TILDE 0xFE53
+
+/**
+ * The X11 keysym for the dead key which types a dieresis/umlaut (¨).
+ */
+#define DEAD_DIERESIS 0xFE57
+
+/**
+ * The X11 keysym for the dead key which types an abovering (˚). Note that this
+ * is NOT equivalent to the degree symbol.
+ */
+#define DEAD_ABOVERING 0xFE58
+
+/**
+ * The decomposed form of a key that can be typed using two keypresses: a dead
+ * key followed by a base key. For example, on a keyboard which lacks a single
+ * dedicated key for doing the same, "ó" would be typed using the dead acute
+ * key followed by the "o" key. The dead key and base key are pressed and
+ * released in sequence; they are not held down.
+ */
+typedef struct guac_spice_decomposed_key {
+
+    /**
+     * The keysym of the dead key which must first be pressed and released to
+     * begin typing the desired character. The dead key defines the diacritic
+     * which will be applied to the character typed by the base key.
+     */
+    int dead_keysym;
+
+    /**
+     * The keysym of the base key which must be pressed and released to finish
+     * typing the desired character. The base key defines the normal form of
+     * the character (the form which lacks any diacritic) to which the
+     * diacritic defined by the previously-pressed dead key will be applied.
+     */
+    int base_keysym;
+
+} guac_spice_decomposed_key;
+
+/**
+ * A lookup table of all known decomposed forms of various keysyms. Keysyms map
+ * directly to entries within this table. A keysym which has no entry within
+ * this table does not have a defined decomposed form (or at least does not
+ * have a decomposed form relevant to SPICE).
+ */
+guac_spice_decomposed_key guac_spice_decomposed_keys[256] = {
+
+    /* ^ */ [0x005E] = { DEAD_CIRCUMFLEX, ' ' },
+    /* ` */ [0x0060] = { DEAD_GRAVE,      ' ' },
+    /* ~ */ [0x007E] = { DEAD_TILDE,      ' ' },
+    /* ¨ */ [0x00A8] = { DEAD_DIERESIS,   ' ' },
+    /* ´ */ [0x00B4] = { DEAD_ACUTE,      ' ' },
+    /* À */ [0x00C0] = { DEAD_GRAVE,      'A' },
+    /* Á */ [0x00C1] = { DEAD_ACUTE,      'A' },
+    /* Â */ [0x00C2] = { DEAD_CIRCUMFLEX, 'A' },
+    /* Ã */ [0x00C3] = { DEAD_TILDE,      'A' },
+    /* Ä */ [0x00C4] = { DEAD_DIERESIS,   'A' },
+    /* Å */ [0x00C5] = { DEAD_ABOVERING,  'A' },
+    /* È */ [0x00C8] = { DEAD_GRAVE,      'E' },
+    /* É */ [0x00C9] = { DEAD_ACUTE,      'E' },
+    /* Ê */ [0x00CA] = { DEAD_CIRCUMFLEX, 'E' },
+    /* Ë */ [0x00CB] = { DEAD_DIERESIS,   'E' },
+    /* Ì */ [0x00CC] = { DEAD_GRAVE,      'I' },
+    /* Í */ [0x00CD] = { DEAD_ACUTE,      'I' },
+    /* Î */ [0x00CE] = { DEAD_CIRCUMFLEX, 'I' },
+    /* Ï */ [0x00CF] = { DEAD_DIERESIS,   'I' },
+    /* Ñ */ [0x00D1] = { DEAD_TILDE,      'N' },
+    /* Ò */ [0x00D2] = { DEAD_GRAVE,      'O' },
+    /* Ó */ [0x00D3] = { DEAD_ACUTE,      'O' },
+    /* Ô */ [0x00D4] = { DEAD_CIRCUMFLEX, 'O' },
+    /* Õ */ [0x00D5] = { DEAD_TILDE,      'O' },
+    /* Ö */ [0x00D6] = { DEAD_DIERESIS,   'O' },
+    /* Ù */ [0x00D9] = { DEAD_GRAVE,      'U' },
+    /* Ú */ [0x00DA] = { DEAD_ACUTE,      'U' },
+    /* Û */ [0x00DB] = { DEAD_CIRCUMFLEX, 'U' },
+    /* Ü */ [0x00DC] = { DEAD_DIERESIS,   'U' },
+    /* Ý */ [0x00DD] = { DEAD_ACUTE,      'Y' },
+    /* à */ [0x00E0] = { DEAD_GRAVE,      'a' },
+    /* á */ [0x00E1] = { DEAD_ACUTE,      'a' },
+    /* â */ [0x00E2] = { DEAD_CIRCUMFLEX, 'a' },
+    /* ã */ [0x00E3] = { DEAD_TILDE,      'a' },
+    /* ä */ [0x00E4] = { DEAD_DIERESIS,   'a' },
+    /* å */ [0x00E5] = { DEAD_ABOVERING,  'a' },
+    /* è */ [0x00E8] = { DEAD_GRAVE,      'e' },
+    /* é */ [0x00E9] = { DEAD_ACUTE,      'e' },
+    /* ê */ [0x00EA] = { DEAD_CIRCUMFLEX, 'e' },
+    /* ë */ [0x00EB] = { DEAD_DIERESIS,   'e' },
+    /* ì */ [0x00EC] = { DEAD_GRAVE,      'i' },
+    /* í */ [0x00ED] = { DEAD_ACUTE,      'i' },
+    /* î */ [0x00EE] = { DEAD_CIRCUMFLEX, 'i' },
+    /* ï */ [0x00EF] = { DEAD_DIERESIS,   'i' },
+    /* ñ */ [0x00F1] = { DEAD_TILDE,      'n' },
+    /* ò */ [0x00F2] = { DEAD_GRAVE,      'o' },
+    /* ó */ [0x00F3] = { DEAD_ACUTE,      'o' },
+    /* ô */ [0x00F4] = { DEAD_CIRCUMFLEX, 'o' },
+    /* õ */ [0x00F5] = { DEAD_TILDE,      'o' },
+    /* ö */ [0x00F6] = { DEAD_DIERESIS,   'o' },
+    /* ù */ [0x00F9] = { DEAD_GRAVE,      'u' },
+    /* ú */ [0x00FA] = { DEAD_ACUTE,      'u' },
+    /* û */ [0x00FB] = { DEAD_CIRCUMFLEX, 'u' },
+    /* ü */ [0x00FC] = { DEAD_DIERESIS,   'u' },
+    /* ý */ [0x00FD] = { DEAD_ACUTE,      'y' },
+    /* ÿ */ [0x00FF] = { DEAD_DIERESIS,   'y' } 
+
+};
+
+int guac_spice_decompose_keysym(guac_spice_keyboard* keyboard, int keysym) {
+
+    /* Verify keysym is within range of lookup table */
+    if (keysym < 0x00 || keysym > 0xFF)
+        return 1;
+
+    /* Verify keysym is actually defined within lookup table */
+    guac_spice_decomposed_key* key = &guac_spice_decomposed_keys[keysym];
+    if (!key->dead_keysym)
+        return 1;
+
+    /* Cannot type using decomposed keys if those keys are not defined within
+     * the current layout */
+    if (!guac_spice_keyboard_is_defined(keyboard, key->dead_keysym)
+            || !guac_spice_keyboard_is_defined(keyboard, key->base_keysym))
+        return 1;
+
+    /* Press dead key */
+    guac_spice_keyboard_update_keysym(keyboard, key->dead_keysym, 1, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+    guac_spice_keyboard_update_keysym(keyboard, key->dead_keysym, 0, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+
+    /* Press base key */
+    guac_spice_keyboard_update_keysym(keyboard, key->base_keysym, 1, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+    guac_spice_keyboard_update_keysym(keyboard, key->base_keysym, 0, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+
+    /* Decomposed key successfully typed */
+    return 0;
+
+}
+

src/protocols/spice/decompose.h

@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_DECOMPOSE_H
+#define GUAC_SPICE_DECOMPOSE_H
+
+#include "config.h"
+#include "keyboard.h"
+
+/**
+ * Attempts to type the given keysym by decomposing the associated character
+ * into the dead key and base key pair which would be used to type that
+ * character on a keyboard which lacks the necessary dedicated key. The key
+ * events for the dead key and base key are sent only if the keyboard layout of
+ * the given keyboard defines those keys.
+ *
+ * For example, the keysym for "ò" (0x00F2) would decompose into a dead grave
+ * (`) and the base key "o". May it rest in peace.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current SPICE session.
+ *
+ * @param keysym
+ *     The keysym being pressed.
+ *
+ * @return
+ *     Zero if the keysym was successfully decomposed and sent to the Spice
+ *     server as a pair of key events (the dead key and base key), non-zero
+ *     otherwise.
+ */
+int guac_spice_decompose_keysym(guac_spice_keyboard* keyboard, int keysym);
+
+#endif
+

src/protocols/spice/input.c

@@ -0,0 +1,154 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "common/cursor.h"
+#include "common/display.h"
+#include "spice.h"
+#include "spice-constants.h"
+
+#include <guacamole/recording.h>
+#include <guacamole/user.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+int guac_spice_user_mouse_handler(guac_user* user, int x, int y, int mask) {
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    /* Store the old button mask. */
+    int curr_button_mask = spice_client->display->cursor->button_mask;
+
+    guac_user_log(user, GUAC_LOG_TRACE, "Handling mouse event: %d, %d, 0x%08x", x, y, mask);
+
+    /* Update current mouse location/state */
+    guac_common_cursor_update(spice_client->display->cursor, user, x, y, mask);
+
+    /* Report mouse position and button state within recording. */
+    if (spice_client->recording != NULL)
+        guac_recording_report_mouse(spice_client->recording, x, y, mask);
+
+    /* Send SPICE event only if finished connecting */
+    if (spice_client->inputs_channel != NULL) {
+        spice_inputs_channel_position(spice_client->inputs_channel, x, y, GUAC_SPICE_DEFAULT_DISPLAY_ID, mask);
+
+        /* Button state has changed, so we need to evaluate which buttons changed. */
+        if (curr_button_mask != mask) {
+
+            /* Left click. */
+            if (curr_button_mask ^ GUAC_CLIENT_MOUSE_LEFT && mask & GUAC_CLIENT_MOUSE_LEFT) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Left click!");
+                spice_inputs_channel_button_press(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_LEFT, mask);
+            }
+
+            /* Left release. */
+            if (curr_button_mask & GUAC_CLIENT_MOUSE_LEFT && mask ^ GUAC_CLIENT_MOUSE_LEFT) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Left release!");
+                spice_inputs_channel_button_release(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_LEFT, mask);
+            }
+
+            /* Middle click. */
+            if (curr_button_mask ^ GUAC_CLIENT_MOUSE_MIDDLE && mask & GUAC_CLIENT_MOUSE_MIDDLE) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Middle click!");
+                spice_inputs_channel_button_press(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_MIDDLE, mask);
+            }
+
+            /* Middle release. */
+            if (curr_button_mask & GUAC_CLIENT_MOUSE_MIDDLE && mask ^ GUAC_CLIENT_MOUSE_MIDDLE) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Middle release!");
+                spice_inputs_channel_button_release(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_MIDDLE, mask);
+            }
+
+            /* Right click. */
+            if (curr_button_mask ^ GUAC_CLIENT_MOUSE_RIGHT && mask & GUAC_CLIENT_MOUSE_RIGHT) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Right click!");
+                spice_inputs_channel_button_press(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_RIGHT, mask);
+            }
+
+            /* Right release. */
+            if (curr_button_mask & GUAC_CLIENT_MOUSE_RIGHT && mask ^ GUAC_CLIENT_MOUSE_RIGHT) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Right release!");
+                spice_inputs_channel_button_release(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_RIGHT, mask);
+            }
+
+            /* Scroll up. */
+            if (curr_button_mask ^ GUAC_CLIENT_MOUSE_SCROLL_UP && mask & GUAC_CLIENT_MOUSE_SCROLL_UP) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Scroll up!");
+                spice_inputs_channel_button_press(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_UP, mask);
+            }
+
+            /* Scroll up stop. */
+            if (curr_button_mask & GUAC_CLIENT_MOUSE_SCROLL_UP && mask ^ GUAC_CLIENT_MOUSE_SCROLL_UP) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Scroll up stop!");
+                spice_inputs_channel_button_release(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_UP, mask);
+            }
+
+            /* Scroll down. */
+            if (curr_button_mask ^ GUAC_CLIENT_MOUSE_SCROLL_DOWN && mask & GUAC_CLIENT_MOUSE_SCROLL_DOWN) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Scroll down!");
+                spice_inputs_channel_button_press(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_DOWN, mask);
+            }
+
+            /* Scroll down stop. */
+            if (curr_button_mask & GUAC_CLIENT_MOUSE_SCROLL_DOWN && mask ^ GUAC_CLIENT_MOUSE_SCROLL_DOWN) {
+                guac_user_log(user, GUAC_LOG_TRACE, "Scroll down stop!");
+                spice_inputs_channel_button_release(spice_client->inputs_channel, SPICE_MOUSE_BUTTON_DOWN, mask);
+            }
+
+        }
+
+    }
+
+    return 0;
+}
+
+int guac_spice_user_key_handler(guac_user* user, int keysym, int pressed) {
+    
+    guac_spice_client* spice_client = (guac_spice_client*) user->client->data;
+    int retval = 0;
+
+    pthread_rwlock_rdlock(&(spice_client->lock));
+
+    guac_user_log(user, GUAC_LOG_TRACE, "Handling keypress: 0x%08x", keysym);
+    
+    /* Report key state within recording */
+    if (spice_client->recording != NULL)
+        guac_recording_report_key(spice_client->recording,
+                keysym, pressed);
+
+    /* Skip if keyboard not yet ready */
+    if (spice_client->inputs_channel == NULL || spice_client->keyboard == NULL)
+        goto complete;
+        
+    /* Update keysym state */
+    retval = guac_spice_keyboard_update_keysym(spice_client->keyboard,
+                keysym, pressed, GUAC_SPICE_KEY_SOURCE_CLIENT);
+
+complete:
+    pthread_rwlock_unlock(&(spice_client->lock));
+
+    return retval;
+}
+
+void guac_spice_mouse_mode_update(SpiceChannel* channel, guac_client* client) {
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Updating mouse mode, not implemented.");
+    
+}

src/protocols/spice/input.h

@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+
+#ifndef GUAC_SPICE_INPUT_H
+#define GUAC_SPICE_INPUT_H
+
+#include "config.h"
+
+#include <guacamole/user.h>
+
+/**
+ * Handler for Guacamole user mouse events.
+ */
+guac_user_mouse_handler guac_spice_user_mouse_handler;
+
+/**
+ * Handler for Guacamole user key events.
+ */
+guac_user_key_handler guac_spice_user_key_handler;
+
+/**
+ * A callback that is invoked when the Spice server updates the mouse mode.
+ * 
+ * @param channel
+ *     The channel on which the update occurred.
+ * 
+ * @param client
+ *     The guac_client instance associated with this session.
+ */
+void guac_spice_mouse_mode_update(SpiceChannel* channel, guac_client* client);
+
+#endif /* GUAC_SPICE_INPUT_H */
+

src/protocols/spice/keyboard.c

@@ -0,0 +1,652 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "decompose.h"
+#include "keyboard.h"
+#include "keymap.h"
+#include "spice.h"
+#include "spice-constants.h"
+
+#include <guacamole/client.h>
+
+#include <stdlib.h>
+
+/**
+ * Translates the given keysym into the corresponding lock flag, as would be
+ * required by the Spice synchronize event. If the given keysym does not
+ * represent a lock key, zero is returned.
+ *
+ * @param keysym
+ *     The keysym to translate into a Spice lock flag.
+ *
+ * @return
+ *     The Spice lock flag which corresponds to the given keysym, or zero if the
+ *     given keysym does not represent a lock key.
+ */
+static int guac_spice_keyboard_lock_flag(int keysym) {
+
+    /* Translate keysym into corresponding lock flag */
+    switch (keysym) {
+
+        /* Scroll lock */
+        case GUAC_SPICE_KEYSYM_SCROLL_LOCK:
+            return SPICE_INPUTS_SCROLL_LOCK;
+
+        /* Num lock */
+        case GUAC_SPICE_KEYSYM_NUM_LOCK:
+            return SPICE_INPUTS_NUM_LOCK;
+
+        /* Caps lock */
+        case GUAC_SPICE_KEYSYM_CAPS_LOCK:
+            return SPICE_INPUTS_CAPS_LOCK;
+
+    }
+
+    /* Not a lock key */
+    return 0;
+
+}
+
+/**
+ * Immediately sends an Spice key event having the given scancode and flags.
+ *
+ * @param spice_client
+ *     The Spice client instance associated with the SPICE session along which the
+ *     key event should be sent.
+ *
+ * @param scancode
+ *     The scancode of the key to press or release via the Spice key event.
+ *
+ * @param flags
+ *     Any Spice-specific flags required for the provided scancode to have the
+ *     intended meaning, such as KBD_FLAGS_EXTENDED. The possible flags and
+ *     their meanings are dictated by SPICE. KBD_FLAGS_DOWN and KBD_FLAGS_UP
+ *     need not be specified here - they will automatically be added depending
+ *     on the value specified for the pressed parameter.
+ *
+ * @param pressed
+ *     Non-zero if the key is being pressed, zero if the key is being released.
+ */
+static void guac_spice_send_key_event(guac_spice_client* spice_client,
+        int scancode, int flags, int pressed) {
+
+    /* Send actual key press or release */
+    pthread_mutex_lock(&(spice_client->message_lock));
+    if (pressed)
+        spice_inputs_channel_key_press(spice_client->inputs_channel, scancode);
+    else
+        spice_inputs_channel_key_release(spice_client->inputs_channel, scancode);
+    pthread_mutex_unlock(&(spice_client->message_lock));
+
+}
+
+/**
+ * Immediately sends an Spice synchonize event having the given flags. A Spice
+ * synchronize event sets the state of remote lock keys absolutely, where a
+ * lock key will be active only if its corresponding flag is set in the event.
+ *
+ * @param spice_client
+ *     The Spice client instance associated with the Spice session along which the
+ *     synchronize event should be sent.
+ *
+ * @param modifiers
+ *     Bitwise OR of the flags representing the lock keys which should be set,
+ *     if any, as dictated by the Spice protocol. If no flags are set, then no
+ *     lock keys will be active.
+ */
+static void guac_spice_send_synchronize_event(guac_spice_client* spice_client,
+        unsigned int modifiers) {
+
+    /* Skip if inputs channel is not connected */
+    if (spice_client->inputs_channel == NULL)
+        return;
+
+    /* Synchronize lock key states */
+    pthread_mutex_lock(&(spice_client->message_lock));
+    spice_inputs_channel_set_key_locks(spice_client->inputs_channel, modifiers);
+    pthread_mutex_unlock(&(spice_client->message_lock));
+
+}
+
+/**
+ * Given a keyboard instance and X11 keysym, returns a pointer to the
+ * keys_by_keysym entry that represents the key having that keysym within the
+ * keyboard, regardless of whether the key is currently defined. If no such key
+ * can exist (the keysym cannot be mapped or is out of range), NULL is
+ * returned.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current Spice session.
+ *
+ * @param keysym
+ *     The keysym of the key to lookup within the given keyboard.
+ *
+ * @return
+ *     A pointer to the keys_by_keysym entry which represents or can represent
+ *     the key having the given keysym, or NULL if no such keysym can be
+ *     defined within a guac_spice_keyboard structure.
+ */
+static guac_spice_key** guac_spice_keyboard_map_key(guac_spice_keyboard* keyboard,
+        int keysym) {
+
+    int index;
+
+    /* Map keysyms between 0x0000 and 0xFFFF directly */
+    if (keysym >= 0x0000 && keysym <= 0xFFFF)
+        index = keysym;
+
+    /* Map all Unicode keysyms from U+0000 to U+FFFF */
+    else if (keysym >= 0x1000000 && keysym <= 0x100FFFF)
+        index = 0x10000 + (keysym & 0xFFFF);
+
+    /* All other keysyms are unmapped */
+    else
+        return NULL;
+
+    /* Corresponding key mapping (defined or not) has been located */
+    return &(keyboard->keys_by_keysym[index]);
+
+}
+
+/**
+ * Returns the number of bits that are set within the given integer (the number
+ * of 1s in the binary expansion of the given integer).
+ *
+ * @param value
+ *     The integer to read.
+ *
+ * @return
+ *     The number of bits that are set within the given integer.
+ */
+static int guac_spice_count_bits(unsigned int value) {
+
+    int bits = 0;
+
+    while (value) {
+        bits += value & 1;
+        value >>= 1;
+    }
+
+    return bits;
+
+}
+
+/**
+ * Returns an estimated cost for sending the necessary Spice events to type the
+ * key described by the given guac_spice_keysym_desc, given the current lock and
+ * modifier state of the keyboard. A higher cost value indicates that a greater
+ * number of events are expected to be required.
+ *
+ * Lower-cost approaches should be preferred when multiple alternatives exist
+ * for typing a particular key, as the lower cost implies fewer additional key
+ * events required to produce the expected behavior. For example, if Caps Lock
+ * is enabled, typing an uppercase "A" by pressing the "A" key has a lower cost
+ * than disabling Caps Lock and pressing Shift+A.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current SPICE session.
+ *
+ * @param def
+ *     The guac_spice_keysym_desc that describes the key being pressed, as well
+ *     as any requirements that must be satisfied for the key to be interpreted
+ *     as expected.
+ *
+ * @return
+ *     An arbitrary integer value which indicates the overall estimated
+ *     complexity of typing the given key.
+ */
+static int guac_spice_keyboard_get_cost(guac_spice_keyboard* keyboard,
+        const guac_spice_keysym_desc* def) {
+
+    unsigned int modifiers = guac_spice_keyboard_get_modifier_flags(keyboard);
+
+    /* Each change to any key requires one event, by definition */
+    int cost = 1;
+
+    /* Each change to a lock requires roughly two key events */
+    unsigned int update_locks = (def->set_modifiers & ~keyboard->modifiers) | (def->clear_modifiers & keyboard->modifiers);
+    cost += guac_spice_count_bits(update_locks) * 2;
+
+    /* Each change to a modifier requires one key event */
+    unsigned int update_modifiers = (def->clear_modifiers & modifiers) | (def->set_modifiers & ~modifiers);
+    cost += guac_spice_count_bits(update_modifiers);
+
+    return cost;
+
+}
+
+/**
+ * Returns a pointer to the guac_spice_key structure representing the
+ * definition(s) and state of the key having the given keysym. If no such key
+ * is defined within the keyboard layout of the Spice server, NULL is returned.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current Spice session.
+ *
+ * @param keysym
+ *     The keysym of the key to lookup within the given keyboard.
+ *
+ * @return
+ *     A pointer to the guac_spice_key structure representing the definition(s)
+ *     and state of the key having the given keysym, or NULL if no such key is
+ *     defined within the keyboard layout of the Spice server.
+ */
+static guac_spice_key* guac_spice_keyboard_get_key(guac_spice_keyboard* keyboard,
+        int keysym) {
+
+    /* Verify that the key is actually defined */
+    guac_spice_key** key_by_keysym = guac_spice_keyboard_map_key(keyboard, keysym);
+    if (key_by_keysym == NULL)
+        return NULL;
+
+    return *key_by_keysym;
+
+}
+
+/**
+ * Given a key which may have multiple possible definitions, returns the
+ * definition that currently has the lowest cost, taking into account the
+ * current keyboard lock and modifier states.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current Spice session.
+ *
+ * @param key
+ *     The key whose lowest-cost possible definition should be retrieved.
+ *
+ * @return
+ *     A pointer to the guac_spice_keysym_desc which defines the current
+ *     lowest-cost method of typing the given key.
+ */
+static const guac_spice_keysym_desc* guac_spice_keyboard_get_definition(guac_spice_keyboard* keyboard,
+        guac_spice_key* key) {
+
+    /* Consistently map the same entry so long as the key is held */
+    if (key->pressed != NULL)
+        return key->pressed;
+
+    /* Calculate cost of first definition of key (there must always be at least
+     * one definition) */
+    const guac_spice_keysym_desc* best_def = key->definitions[0];
+    int best_cost = guac_spice_keyboard_get_cost(keyboard, best_def);
+
+    /* If further definitions exist, choose the definition with the lowest
+     * overall cost */
+    for (int i = 1; i < key->num_definitions; i++) {
+
+        const guac_spice_keysym_desc* def = key->definitions[i];
+        int cost = guac_spice_keyboard_get_cost(keyboard, def);
+
+        if (cost < best_cost) {
+            best_def = def;
+            best_cost = cost;
+        }
+
+    }
+
+    return best_def;
+
+}
+
+/**
+ * Adds the keysym/scancode mapping described by the given guac_spice_keysym_desc
+ * to the internal mapping of the keyboard. If insufficient space remains for
+ * additional keysyms, or the given keysym has already reached the maximum
+ * number of possible definitions, the mapping is ignored and the failure is
+ * logged.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current Spice session.
+ *
+ * @param mapping
+ *     The keysym/scancode mapping that should be added to the given keyboard.
+ */
+static void guac_spice_keyboard_add_mapping(guac_spice_keyboard* keyboard,
+        const guac_spice_keysym_desc* mapping) {
+
+    /* Locate corresponding keysym-to-key translation entry within keyboard
+     * structure */
+    guac_spice_key** key_by_keysym = guac_spice_keyboard_map_key(keyboard, mapping->keysym);
+    if (key_by_keysym == NULL) {
+        guac_client_log(keyboard->client, GUAC_LOG_DEBUG, "Ignoring unmappable keysym 0x%X", mapping->keysym);
+        return;
+    }
+
+    /* If not yet pointing to a key, point keysym-to-key translation entry at
+     * next available storage */
+    if (*key_by_keysym == NULL) {
+
+        if (keyboard->num_keys == GUAC_SPICE_KEYBOARD_MAX_KEYSYMS) {
+            guac_client_log(keyboard->client, GUAC_LOG_DEBUG, "Key definition "
+                    "for keysym 0x%X dropped: Keymap exceeds maximum "
+                    "supported number of keysyms",
+                    mapping->keysym);
+            return;
+        }
+
+        *key_by_keysym = &keyboard->keys[keyboard->num_keys++];
+
+    }
+
+    guac_spice_key* key = *key_by_keysym;
+
+    /* Add new definition only if sufficient space remains */
+    if (key->num_definitions == GUAC_SPICE_KEY_MAX_DEFINITIONS) {
+        guac_client_log(keyboard->client, GUAC_LOG_DEBUG, "Key definition "
+                "for keysym 0x%X dropped: Maximum number of possible "
+                "definitions has been reached for this keysym",
+                mapping->keysym);
+        return;
+    }
+
+    /* Store new possible definition of key */
+    key->definitions[key->num_definitions++] = mapping;
+
+}
+
+/**
+ * Loads all keysym/scancode mappings declared within the given keymap and its
+ * parent keymap, if any. These mappings are stored within the given
+ * guac_spice_keyboard structure for future use in translating keysyms to the
+ * scancodes required by Spice key events.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard which should be initialized with the
+ *     keysym/scancode mapping defined in the given keymap.
+ *
+ * @param keymap
+ *     The keymap to use to populate the given client's keysym/scancode
+ *     mapping.
+ */
+static void guac_spice_keyboard_load_keymap(guac_spice_keyboard* keyboard,
+        const guac_spice_keymap* keymap) {
+
+    /* If parent exists, load parent first */
+    if (keymap->parent != NULL)
+        guac_spice_keyboard_load_keymap(keyboard, keymap->parent);
+
+    /* Log load */
+    guac_client_log(keyboard->client, GUAC_LOG_INFO,
+            "Loading keymap \"%s\"", keymap->name);
+
+    /* Copy mapping into keymap */
+    const guac_spice_keysym_desc* mapping = keymap->mapping;
+    while (mapping->keysym != 0) {
+        guac_spice_keyboard_add_mapping(keyboard, mapping++);
+    }
+
+}
+
+guac_spice_keyboard* guac_spice_keyboard_alloc(guac_client* client,
+        const guac_spice_keymap* keymap) {
+
+    guac_spice_keyboard* keyboard = calloc(1, sizeof(guac_spice_keyboard));
+    keyboard->client = client;
+
+    /* Load keymap into keyboard */
+    guac_spice_keyboard_load_keymap(keyboard, keymap);
+
+    return keyboard;
+
+}
+
+void guac_spice_keyboard_free(guac_spice_keyboard* keyboard) {
+    free(keyboard);
+}
+
+int guac_spice_keyboard_is_defined(guac_spice_keyboard* keyboard, int keysym) {
+
+    /* Return whether the mapping actually exists */
+    return guac_spice_keyboard_get_key(keyboard, keysym) != NULL;
+
+}
+
+int guac_spice_keyboard_is_pressed(guac_spice_keyboard* keyboard, int keysym) {
+
+    guac_spice_key* key = guac_spice_keyboard_get_key(keyboard, keysym);
+    return key != NULL && key->pressed != NULL;
+
+}
+
+unsigned int guac_spice_keyboard_get_modifier_flags(guac_spice_keyboard* keyboard) {
+
+    unsigned int modifier_flags = 0;
+
+    /* Shift */
+    if (guac_spice_keyboard_is_pressed(keyboard, GUAC_SPICE_KEYSYM_LSHIFT)
+            || guac_spice_keyboard_is_pressed(keyboard, GUAC_SPICE_KEYSYM_RSHIFT))
+        modifier_flags |= GUAC_SPICE_KEYMAP_MODIFIER_SHIFT;
+
+    /* Dedicated AltGr key */
+    if (guac_spice_keyboard_is_pressed(keyboard, GUAC_SPICE_KEYSYM_RALT)
+            || guac_spice_keyboard_is_pressed(keyboard, GUAC_SPICE_KEYSYM_ALTGR))
+        modifier_flags |= GUAC_SPICE_KEYMAP_MODIFIER_ALTGR;
+
+    /* AltGr via Ctrl+Alt */
+    if (guac_spice_keyboard_is_pressed(keyboard, GUAC_SPICE_KEYSYM_LALT)
+            && (guac_spice_keyboard_is_pressed(keyboard, GUAC_SPICE_KEYSYM_RCTRL)
+                || guac_spice_keyboard_is_pressed(keyboard, GUAC_SPICE_KEYSYM_LCTRL)))
+        modifier_flags |= GUAC_SPICE_KEYMAP_MODIFIER_ALTGR;
+
+    return modifier_flags;
+
+}
+
+/**
+ * Presses/releases the requested key by sending one or more Spice key events, as
+ * defined within the keymap defining that key.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current Spice session.
+ *
+ * @param key
+ *     The guac_spice_keysym_desc of the key being pressed or released, as
+ *     retrieved from the relevant keymap.
+ *
+ * @param pressed
+ *     Zero if the key is being released, non-zero otherwise.
+ *
+ * @return
+ *     Zero if the key was successfully pressed/released, non-zero if the key
+ *     cannot be sent using Spice key events.
+ */
+static const guac_spice_keysym_desc* guac_spice_keyboard_send_defined_key(guac_spice_keyboard* keyboard,
+        guac_spice_key* key, int pressed) {
+
+    guac_client* client = keyboard->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    const guac_spice_keysym_desc* keysym_desc = guac_spice_keyboard_get_definition(keyboard, key);
+    if (keysym_desc->scancode == 0)
+        return NULL;
+
+    /* Update state of required locks and modifiers only when key is just
+     * now being pressed */
+    if (pressed) {
+        guac_spice_keyboard_update_locks(keyboard,
+                keysym_desc->set_locks,
+                keysym_desc->clear_locks);
+
+        guac_spice_keyboard_update_modifiers(keyboard,
+                keysym_desc->set_modifiers,
+                keysym_desc->clear_modifiers);
+    }
+
+    /* Fire actual key event for target key */
+    guac_client_log(client, GUAC_LOG_TRACE, "Firing scancode event: %08x", keysym_desc->scancode);
+    guac_spice_send_key_event(spice_client, keysym_desc->scancode,
+            keysym_desc->flags, pressed);
+
+    return keysym_desc;
+
+}
+
+void guac_spice_keyboard_update_locks(guac_spice_keyboard* keyboard,
+        unsigned int set_modifiers, unsigned int clear_modifiers) {
+
+    guac_client* client = keyboard->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    /* Calculate updated lock flags */
+    unsigned int modifiers = (keyboard->modifiers | set_modifiers) & ~clear_modifiers;
+
+    /* Synchronize remote side only if lock flags have changed */
+    if (modifiers != keyboard->modifiers) {
+        guac_spice_send_synchronize_event(spice_client, modifiers);
+        keyboard->modifiers = modifiers;
+    }
+
+}
+
+void guac_spice_keyboard_update_modifiers(guac_spice_keyboard* keyboard,
+        unsigned int set_flags, unsigned int clear_flags) {
+
+    unsigned int modifier_flags = guac_spice_keyboard_get_modifier_flags(keyboard);
+
+    /* Only clear modifiers that are set */
+    clear_flags &= modifier_flags;
+
+    /* Only set modifiers that are currently cleared */
+    set_flags &= ~modifier_flags;
+
+    /* Press/release Shift as needed */
+    if (set_flags & GUAC_SPICE_KEYMAP_MODIFIER_SHIFT) {
+        guac_spice_keyboard_update_keysym(keyboard, GUAC_SPICE_KEYSYM_LSHIFT, 1, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+    }
+    else if (clear_flags & GUAC_SPICE_KEYMAP_MODIFIER_SHIFT) {
+        guac_spice_keyboard_update_keysym(keyboard, GUAC_SPICE_KEYSYM_LSHIFT, 0, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+        guac_spice_keyboard_update_keysym(keyboard, GUAC_SPICE_KEYSYM_RSHIFT, 0, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+    }
+
+    /* Press/release AltGr as needed */
+    if (set_flags & GUAC_SPICE_KEYMAP_MODIFIER_ALTGR) {
+        guac_spice_keyboard_update_keysym(keyboard, GUAC_SPICE_KEYSYM_ALTGR, 1, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+    }
+    else if (clear_flags & GUAC_SPICE_KEYMAP_MODIFIER_ALTGR) {
+        guac_spice_keyboard_update_keysym(keyboard, GUAC_SPICE_KEYSYM_ALTGR, 0, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+        guac_spice_keyboard_update_keysym(keyboard, GUAC_SPICE_KEYSYM_LALT, 0, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+        guac_spice_keyboard_update_keysym(keyboard, GUAC_SPICE_KEYSYM_RALT, 0, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+        guac_spice_keyboard_update_keysym(keyboard, GUAC_SPICE_KEYSYM_LCTRL, 0, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+        guac_spice_keyboard_update_keysym(keyboard, GUAC_SPICE_KEYSYM_RCTRL, 0, GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+    }
+
+}
+
+int guac_spice_keyboard_update_keysym(guac_spice_keyboard* keyboard,
+        int keysym, int pressed, guac_spice_key_source source) {
+
+    /* Synchronize lock keys states, if this has not yet been done */
+    if (!keyboard->synchronized) {
+
+        guac_client* client = keyboard->client;
+        guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+        /* Synchronize remote lock key states with local state */
+        guac_spice_send_synchronize_event(spice_client, keyboard->modifiers);
+        keyboard->synchronized = 1;
+
+    }
+
+    guac_spice_key* key = guac_spice_keyboard_get_key(keyboard, keysym);
+
+    /* Update tracking of client-side keyboard state but only for keys which
+     * are tracked server-side, as well (to ensure that the key count remains
+     * correct, even if a user sends extra unbalanced or excessive press and
+     * release events) */
+    if (source == GUAC_SPICE_KEY_SOURCE_CLIENT && key != NULL) {
+        if (pressed && !key->user_pressed) {
+            keyboard->user_pressed_keys++;
+            key->user_pressed = 1;
+        }
+        else if (!pressed && key->user_pressed) {
+            keyboard->user_pressed_keys--;
+            key->user_pressed = 0;
+        }
+    }
+
+    /* Send events and update server-side lock state only if server-side key
+     * state is changing (or if server-side state of this key is untracked) */
+    if (key == NULL || (pressed && key->pressed == NULL) || (!pressed && key->pressed != NULL)) {
+
+        /* Toggle locks on keydown */
+        if (pressed)
+            keyboard->modifiers ^= guac_spice_keyboard_lock_flag(keysym);
+
+        /* If key is known, update state and attempt to send using normal SPICE key
+         * events */
+        const guac_spice_keysym_desc* definition = NULL;
+        if (key != NULL) {
+            definition = guac_spice_keyboard_send_defined_key(keyboard, key, pressed);
+            key->pressed = pressed ? definition : NULL;
+        }
+
+        /* Fall back to dead keys or Unicode events if otherwise undefined inside
+         * current keymap (note that we only handle "pressed" here, as neither
+         * Unicode events nor dead keys can have a pressed/released state) */
+        if (definition == NULL && pressed) {
+            guac_client_log(keyboard->client, GUAC_LOG_WARNING, 
+                "Undefined key will not be sent: %d", keysym);
+        }
+
+    }
+
+    /* Reset SPICE server keyboard state (releasing any automatically
+     * pressed keys) once all keys have been released on the client
+     * side */
+    if (source == GUAC_SPICE_KEY_SOURCE_CLIENT && keyboard->user_pressed_keys == 0)
+        guac_spice_keyboard_reset(keyboard);
+
+    return 0;
+
+}
+
+void guac_spice_keyboard_reset(guac_spice_keyboard* keyboard) {
+
+    /* Release all pressed keys */
+    for (int i = 0; i < keyboard->num_keys; i++) {
+        guac_spice_key* key = &keyboard->keys[i];
+        if (key->pressed != NULL)
+            guac_spice_keyboard_update_keysym(keyboard, key->pressed->keysym, 0,
+                    GUAC_SPICE_KEY_SOURCE_SYNTHETIC);
+    }
+
+}
+
+void guac_spice_keyboard_set_indicators(SpiceChannel* channel, guac_client* client) {
+
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+
+    pthread_rwlock_rdlock(&(spice_client->lock));
+
+    /* Skip if keyboard not yet ready */
+    guac_spice_keyboard* keyboard = spice_client->keyboard;
+    if (keyboard == NULL)
+        goto complete;
+    
+    unsigned int modifiers;
+    g_object_get(channel, SPICE_PROPERTY_KEY_MODIFIERS, &modifiers, NULL);
+
+    /* Update with received locks */
+    guac_client_log(client, GUAC_LOG_DEBUG, "Received updated keyboard lock flags from Spice server: 0x%X", modifiers);
+    keyboard->modifiers = modifiers;
+
+complete:
+    pthread_rwlock_unlock(&(spice_client->lock));
+
+}

src/protocols/spice/keyboard.h

@@ -0,0 +1,323 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_KEYBOARD_H
+#define GUAC_SPICE_KEYBOARD_H
+
+#include "keymap.h"
+
+#include <guacamole/client.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+/**
+ * The maximum number of distinct keysyms that any particular keyboard may support.
+ */
+#define GUAC_SPICE_KEYBOARD_MAX_KEYSYMS 1024
+
+/**
+ * The maximum number of unique modifier variations that any particular keysym
+ * may define. For example, on a US English keyboard, an uppercase "A" may be
+ * typed by pressing Shift+A with Caps Lock unset, or by pressing A with Caps
+ * Lock set (two variations).
+ */
+#define GUAC_SPICE_KEY_MAX_DEFINITIONS 4
+
+/**
+ * All possible sources of Spice key events tracked by guac_spice_keyboard.
+ */
+typedef enum guac_spice_key_source {
+
+    /**
+     * The key event was received directly from the Guacamole client via a
+     * "key" instruction.
+     */
+    GUAC_SPICE_KEY_SOURCE_CLIENT = 0,
+
+    /**
+     * The key event is being synthesized internally within the Spice support.
+     */
+    GUAC_SPICE_KEY_SOURCE_SYNTHETIC = 1
+
+} guac_spice_key_source;
+
+/**
+ * A representation of a single key within the overall local keyboard,
+ * including the definition of that key within the Spice server's keymap and
+ * whether the key is currently pressed locally.
+ */
+typedef struct guac_spice_key {
+
+    /**
+     * All definitions of this key within the Spice server's keymap (keyboard
+     * layout). Each definition describes which scancode corresponds to this
+     * key from the perspective of the Spice server, as well as which other
+     * scancodes must be pressed/released for this key to have the desired
+     * meaning.
+     */
+    const guac_spice_keysym_desc* definitions[GUAC_SPICE_KEY_MAX_DEFINITIONS];
+
+    /**
+     * The number of definitions within the definitions array. If this key does
+     * not exist within the Spice server's keymap, this will be 0.
+     */
+    int num_definitions;
+
+    /**
+     * The definition of this key that is currently pressed. If this key is not
+     * currently pressed, this will be NULL.
+     */
+    const guac_spice_keysym_desc* pressed;
+
+    /**
+     * Whether this key is currently pressed by the user, and is included among
+     * the total tracked by user_pressed_keys within guac_spice_keyboard.
+     */
+    int user_pressed;
+
+} guac_spice_key;
+
+/**
+ * The current keyboard state of an Spice session.
+ */
+typedef struct guac_spice_keyboard {
+
+    /**
+     * The guac_client associated with the Spice session whose keyboard state is
+     * being managed by this guac_spice_keyboard.
+     */
+    guac_client* client;
+
+    /**
+     * The local state of all known lock keys, as a bitwise OR of all Spice lock
+     * key flags. Legal flags are KBD_SYNC_SCROLL_LOCK, KBD_SYNC_NUM_LOCK,
+     * KBD_SYNC_CAPS_LOCK, and KBD_SYNC_KANA_LOCK.
+     */
+    int modifiers;
+
+    /**
+     * Whether the states of remote lock keys (Caps lock, Num lock, etc.) have
+     * been synchronized with local lock key states.
+     */
+    int synchronized;
+
+    /**
+     * The number of keys stored within the keys array.
+     */
+    unsigned int num_keys;
+
+    /**
+     * The local state of all keys, as well as the necessary information to
+     * translate received keysyms into scancodes or sequences of scancodes for
+     * Spice. The state of each key is updated based on received Guacamole key
+     * events, while the information describing the behavior and scancode
+     * mapping of each key is populated based on an associated keymap.
+     *
+     * Keys within this array are in arbitrary order.
+     */
+    guac_spice_key keys[GUAC_SPICE_KEYBOARD_MAX_KEYSYMS];
+
+    /**
+     * Lookup table into the overall keys array, locating the guac_spice_key
+     * associated with any particular keysym. If a keysym has no corresponding
+     * guac_spice_key within the keys array, its entry within this lookuptable
+     * will be NULL.
+     *
+     * The index of the key for a given keysym is determined based on a
+     * simple transformation of the keysym itself. Keysyms between 0x0000 and
+     * 0xFFFF inclusive are mapped to 0x00000 through 0x0FFFF, while keysyms
+     * between 0x1000000 and 0x100FFFF inclusive (keysyms which are derived
+     * from Unicode) are mapped to 0x10000 through 0x1FFFF.
+     */
+    guac_spice_key* keys_by_keysym[0x20000];
+
+    /**
+     * The total number of keys that the user of the connection is currently
+     * holding down. This value indicates only the client-side keyboard state.
+     * It DOES NOT indicate the number of keys currently pressed within the
+     * Spice server.
+     */
+    int user_pressed_keys;
+
+} guac_spice_keyboard;
+
+/**
+ * Allocates a new guac_spice_keyboard which manages the keyboard state of the
+ * SPICE session associated with the given guac_client. Keyboard events will be
+ * dynamically translated from keysym to Spice scancode according to the
+ * provided keymap. The returned guac_spice_keyboard must eventually be freed
+ * with guac_spice_keyboard_free().
+ *
+ * @param client
+ *     The guac_client associated with the Spice session whose keyboard state is
+ *     to be managed by the newly-allocated guac_spice_keyboard.
+ *
+ * @param keymap
+ *     The keymap which should be used to translate keyboard events.
+ *
+ * @return
+ *     A newly-allocated guac_spice_keyboard which manages the keyboard state
+ *     for the Spice session associated given guac_client.
+ */
+guac_spice_keyboard* guac_spice_keyboard_alloc(guac_client* client,
+        const guac_spice_keymap* keymap);
+
+/**
+ * Frees all memory allocated for the given guac_spice_keyboard. The
+ * guac_spice_keyboard must have been previously allocated via
+ * guac_spice_keyboard_alloc().
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard instance which should be freed.
+ */
+void guac_spice_keyboard_free(guac_spice_keyboard* keyboard);
+
+/**
+ * Returns whether the given keysym is defined for the keyboard layout
+ * associated with the given keyboard.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard instance to check.
+ *
+ * @param keysym
+ *     The keysym of the key being checked against the keyboard layout of the
+ *     given keyboard.
+ *
+ * @return
+ *     Non-zero if the key is explicitly defined within the keyboard layout of
+ *     the given keyboard, zero otherwise.
+ */
+int guac_spice_keyboard_is_defined(guac_spice_keyboard* keyboard, int keysym);
+
+/**
+ * Returns whether the key having the given keysym is currently pressed.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard instance to check.
+ *
+ * @param keysym
+ *     The keysym of the key being checked.
+ *
+ * @return
+ *     Non-zero if the key is currently pressed, zero otherwise.
+ */
+int guac_spice_keyboard_is_pressed(guac_spice_keyboard* keyboard, int keysym);
+
+/**
+ * Returns the local state of all known modifier keys, as a bitwise OR of the
+ * modifier flags used by the keymaps. Alternative methods of producing the
+ * effect of certain modifiers, such as holding Ctrl+Alt for AltGr when a
+ * dedicated AltGr key is unavailable, are taken into account.
+ *
+ * @see GUAC_SPICE_KEYMAP_MODIFIER_SHIFT
+ * @see GUAC_SPICE_KEYMAP_MODIFIER_ALTGR
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current Spice session.
+ *
+ * @return
+ *     The local state of all known modifier keys.
+ */
+unsigned int guac_spice_keyboard_get_modifier_flags(guac_spice_keyboard* keyboard);
+
+/**
+ * Updates the local state of the lock keys (such as Caps lock or Num lock),
+ * synchronizing the remote state of those keys if it is expected to differ.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current Spice session.
+ *
+ * @param set_modifiers
+ *     The lock key flags which should be set. Legal flags are
+ *     KBD_SYNC_SCROLL_LOCK, KBD_SYNC_NUM_LOCK, KBD_SYNC_CAPS_LOCK, and
+ *     KBD_SYNC_KANA_LOCK.
+ *
+ * @param clear_modifiers
+ *     The lock key flags which should be cleared. Legal flags are
+ *     KBD_SYNC_SCROLL_LOCK, KBD_SYNC_NUM_LOCK, KBD_SYNC_CAPS_LOCK, and
+ *     KBD_SYNC_KANA_LOCK.
+ */
+void guac_spice_keyboard_update_locks(guac_spice_keyboard* keyboard,
+        unsigned int set_modifiers, unsigned int clear_modifiers);
+
+/**
+ * Updates the local state of the modifier keys (such as Shift or AltGr),
+ * synchronizing the remote state of those keys if it is expected to differ.
+ * Valid modifier flags are defined by keymap.h.
+ *
+ * @see GUAC_SPICE_KEYMAP_MODIFIER_SHIFT
+ * @see GUAC_SPICE_KEYMAP_MODIFIER_ALTGR
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current Spice session.
+ *
+ * @param set_modifiers
+ *     The modifier key flags which should be set.
+ *
+ * @param clear_modifiers
+ *     The modifier key flags which should be cleared.
+ */
+void guac_spice_keyboard_update_modifiers(guac_spice_keyboard* keyboard,
+        unsigned int set_modifiers, unsigned int clear_modifiers);
+
+/**
+ * Updates the local state of the given keysym, sending the key events required
+ * to replicate that state remotely (on the Spice server). The key events sent
+ * will depend on the current keymap.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current SPICE session.
+ *
+ * @param keysym
+ *     The keysym being pressed or released.
+ *
+ * @param pressed
+ *     Zero if the keysym is being released, non-zero otherwise.
+ *
+ * @param source
+ *     The source of the key event represented by this call to
+ *     guac_spice_keyboard_update_keysym().
+ *
+ * @return
+ *     Zero if the keys were successfully sent, non-zero otherwise.
+ */
+int guac_spice_keyboard_update_keysym(guac_spice_keyboard* keyboard,
+        int keysym, int pressed, guac_spice_key_source source);
+
+/**
+ * Releases all currently pressed keys, sending key release events to the Spice
+ * server as necessary. Lock states (Caps Lock, etc.) are not affected.
+ *
+ * @param keyboard
+ *     The guac_spice_keyboard associated with the current Spice session.
+ */
+void guac_spice_keyboard_reset(guac_spice_keyboard* keyboard);
+
+/**
+ * Callback which is invoked when the Spice server reports changes to keyboard
+ * lock status using a Server Set Keyboard Indicators PDU.
+ *
+ * @param channel
+ *     The spiceContext associated with the current Spice session.
+ *
+ * @param client
+ *     The guac_client object associated with the callback.
+ */
+void guac_spice_keyboard_set_indicators(SpiceChannel* channel, guac_client* client);
+
+#endif

src/protocols/spice/keymap.c

@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "keymap.h"
+
+#include <string.h>
+
+const guac_spice_keymap* guac_spice_keymap_find(const char* name) {
+
+    /* For each keymap */
+    const guac_spice_keymap** current = GUAC_SPICE_KEYMAPS;
+    while (*current != NULL) {
+
+        /* If name matches, done */
+        if (strcmp((*current)->name, name) == 0)
+            return *current;
+
+        current++;
+    }
+
+    /* Failure */
+    return NULL;
+
+}
+

src/protocols/spice/keymap.h

@@ -0,0 +1,202 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_KEYMAP_H
+#define GUAC_SPICE_KEYMAP_H
+
+/**
+ * The X11 keysym for Num Lock.
+ */
+#define GUAC_SPICE_KEYSYM_NUM_LOCK 0xFF7F
+
+/**
+ * The X11 keysym for Scroll Lock.
+ */
+#define GUAC_SPICE_KEYSYM_SCROLL_LOCK 0xFF14
+
+/**
+ * The X11 keysym for Caps Lock.
+ */
+#define GUAC_SPICE_KEYSYM_CAPS_LOCK 0xFFE5
+
+/**
+ * The X11 keysym for Kana Lock.
+ */
+#define GUAC_SPICE_KEYSYM_KANA_LOCK 0xFF2D
+
+/**
+ * The X11 keysym for Left Shift.
+ */
+#define GUAC_SPICE_KEYSYM_LSHIFT 0xFFE1
+
+/**
+ * The X11 keysym for Right Shift.
+ */
+#define GUAC_SPICE_KEYSYM_RSHIFT 0xFFE2
+
+/**
+ * The X11 keysym for Left Ctrl.
+ */
+#define GUAC_SPICE_KEYSYM_LCTRL 0xFFE3
+
+/**
+ * The X11 keysym for Right Ctrl.
+ */
+#define GUAC_SPICE_KEYSYM_RCTRL 0xFFE4
+
+/**
+ * The X11 keysym for Left Alt.
+ */
+#define GUAC_SPICE_KEYSYM_LALT 0xFFE9
+
+/**
+ * The X11 keysym for Right Alt.
+ */
+#define GUAC_SPICE_KEYSYM_RALT 0xFFEA
+
+/**
+ * The X11 keysym for AltGr.
+ */
+#define GUAC_SPICE_KEYSYM_ALTGR 0xFE03
+
+/**
+ * Bitwise flag value representing the Shift modifier.
+ */
+#define GUAC_SPICE_KEYMAP_MODIFIER_SHIFT 1
+
+/**
+ * Bitwise flag value representing the AltGr modifier.
+ */
+#define GUAC_SPICE_KEYMAP_MODIFIER_ALTGR 2
+
+/**
+ * Represents a keysym-to-scancode mapping for Spice, with extra information
+ * about the state of prerequisite keysyms.
+ */
+typedef struct guac_spice_keysym_desc {
+
+    /**
+     * The keysym being mapped.
+     */
+    int keysym;
+
+    /**
+     * The scancode this keysym maps to.
+     */
+    int scancode;
+
+    /**
+     * Required Spice-specific flags that must be sent along with the scancode.
+     */
+    int flags;
+
+    /**
+     * Bitwise-OR of the flags of any modifiers that must be active for the
+     * associated scancode to be interpreted as this keysym.
+     *
+     * If the associated keysym is pressed, and any of these modifiers are not
+     * currently active, Guacamole's Spice support must send additional events
+     * to activate these modifiers prior to sending the scancode for this
+     * keysym.
+     *
+     * @see GUAC_SPICE_KEYMAP_MODIFIER_SHIFT
+     * @see GUAC_SPICE_KEYMAP_MODIFIER_ALTGR
+     */
+    const unsigned int set_modifiers;
+
+    /**
+     * Bitwise-OR of the flags of any modifiers that must NOT be active for the
+     * associated scancode to be interpreted as this keysym.
+     *
+     * If the associated keysym is pressed, and any of these modifiers are
+     * currently active, Guacamole's Spice support must send additional events
+     * to deactivate these modifiers prior to sending the scancode for this
+     * keysym.
+     *
+     * @see GUAC_SPICE_KEYMAP_MODIFIER_SHIFT
+     * @see GUAC_SPICE_KEYMAP_MODIFIER_ALTGR
+     */
+    const unsigned int clear_modifiers;
+
+    /**
+     * Bitwise OR of the flags of all lock keys (ie: Caps lock, Num lock, etc.)
+     * which must be active for this keysym to be properly typed. Legal flags
+     * are KBD_SYNC_SCROLL_LOCK, KBD_SYNC_NUM_LOCK, KBD_SYNC_CAPS_LOCK, and
+     * KBD_SYNC_KANA_LOCK.
+      */
+    const unsigned int set_locks;
+
+    /**
+     * Bitwise OR of the flags of all lock keys (ie: Caps lock, Num lock, etc.)
+     * which must be inactive for this keysym to be properly typed. Legal flags
+     * are KBD_SYNC_SCROLL_LOCK, KBD_SYNC_NUM_LOCK, KBD_SYNC_CAPS_LOCK, and
+     * KBD_SYNC_KANA_LOCK.
+     */
+    const unsigned int clear_locks;
+
+} guac_spice_keysym_desc;
+
+/**
+ * Hierarchical keysym mapping
+ */
+typedef struct guac_spice_keymap guac_spice_keymap;
+struct guac_spice_keymap {
+
+    /**
+     * The parent mapping this map will inherit its initial mapping from.
+     * Any other mapping information will add to or override the mapping
+     * inherited from the parent.
+     */
+    const guac_spice_keymap* parent;
+
+    /**
+     * Descriptive name of this keymap
+     */
+    const char* name;
+
+    /**
+     * Null-terminated array of scancode mappings.
+     */
+    const guac_spice_keysym_desc* mapping;
+
+};
+
+/**
+ * The name of the default keymap, which MUST exist.
+ */
+#define GUAC_SPICE_DEFAULT_KEYMAP "en-us-qwerty"
+
+/**
+ * NULL-terminated array of all keymaps.
+ */
+extern const guac_spice_keymap* GUAC_SPICE_KEYMAPS[];
+
+/**
+ * Return the keymap having the given name, if any, or NULL otherwise.
+ *
+ * @param name
+ *     The name of the keymap to find.
+ *
+ * @return
+ *     The keymap having the given name, or NULL if no such keymap exists.
+ */
+const guac_spice_keymap* guac_spice_keymap_find(const char* name);
+
+#endif
+

src/protocols/spice/keymaps/base.keymap

@@ -0,0 +1,93 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+name "base"
+
+# Typeable characters
+map 0x39 ~ " "    # Space
+map 0x0F ~ 0xff09 # Tab
+
+# Control characters
+map      0x0E ~ 0xff08 # BackSpace
+map      0x1C ~ 0xff0d # Return
+map      0x01 ~ 0xff1b # Escape
+map +ext 0x52 ~ 0xff63 # Insert
+map +ext 0x53 ~ 0xffff # Delete
+map +ext 0x47 ~ 0xff50 # Home
+map +ext 0x4F ~ 0xff57 # End
+map +ext 0x4B ~ 0xff51 # Left
+map +ext 0x48 ~ 0xff52 # Up
+map +ext 0x4D ~ 0xff53 # Right
+map +ext 0x50 ~ 0xff54 # Down
+map +ext 0x49 ~ 0xff55 # Page_Up
+map +ext 0x51 ~ 0xff56 # Page_Down
+map +ext 0x37 ~ 0xff61 # Print Screen
+
+# Locks
+map      0x45 ~ 0xff7f # Num_Lock
+map      0x46 ~ 0xff14 # Scroll_Lock
+map      0x3A ~ 0xffe5 # Caps_Lock
+
+# Keypad numerals
+map -shift +num 0x52 ~ 0xffb0 # KP_0
+map -shift +num 0x4F ~ 0xffb1 # KP_1
+map -shift +num 0x50 ~ 0xffb2 # KP_2
+map -shift +num 0x51 ~ 0xffb3 # KP_3
+map -shift +num 0x4B ~ 0xffb4 # KP_4
+map -shift +num 0x4C ~ 0xffb5 # KP_5
+map -shift +num 0x4D ~ 0xffb6 # KP_6
+map -shift +num 0x47 ~ 0xffb7 # KP_7
+map -shift +num 0x48 ~ 0xffb8 # KP_8
+map -shift +num 0x49 ~ 0xffb9 # KP_9
+
+# Keypad operators
+map      0x37 ~ 0xffaa # KP_multiply
+map      0x4e ~ 0xffab # KP_add
+map      0x4a ~ 0xffad # KP_subtract
+map      0x53 ~ 0xffae # KP_decimal
+map +ext 0x35 ~ 0xffaf # KP_divide
+
+# F keys
+map 0x3B ~ 0xffbe # F1
+map 0x3C ~ 0xffbf # F2
+map 0x3D ~ 0xffc0 # F3
+map 0x3E ~ 0xffc1 # F4
+map 0x3F ~ 0xffc2 # F5
+map 0x40 ~ 0xffc3 # F6
+map 0x41 ~ 0xffc4 # F7
+map 0x42 ~ 0xffc5 # F8
+map 0x43 ~ 0xffc6 # F9
+map 0x44 ~ 0xffc7 # F10
+map 0x57 ~ 0xffc8 # F11
+map 0x58 ~ 0xffc9 # F12
+
+# Modifiers
+map      0x2A ~ 0xffe1 # Shift_L
+map      0x36 ~ 0xffe2 # Shift_R
+map      0x1D ~ 0xffe3 # Control_L
+map +ext 0x1D ~ 0xffe4 # Control_R
+map      0x38 ~ 0xffe9 # Alt_L
+map +ext 0x38 ~ 0xffea # Alt_R
+map +ext 0x38 ~ 0xfe03 # AltGr
+map +ext 0x5B ~ 0xffe7 # Meta_L
+map +ext 0x5C ~ 0xffe8 # Meta_R
+map +ext 0x5B ~ 0xffeb # Super_L
+map +ext 0x5C ~ 0xffec # Super_R
+map +ext 0x5D ~ 0xff67 # Menu
+

src/protocols/spice/keymaps/da_dk_qwerty.keymap

@@ -0,0 +1,73 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "da-dk-qwerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0C      ~ "§1234567890+"
+map -caps -altgr -shift      0x10..0x1A      ~ "qwertyuiopå"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjklæø'"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<zxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0C      ~ "½!"#¤%&/()=?"
+map -caps -altgr +shift      0x10..0x1A      ~ "QWERTYUIOPÅ"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÆØ*"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">ZXCVBNM;:_"
+
+map +caps -altgr -shift 0x29 0x02..0x0C      ~ "§1234567890+"
+map +caps -altgr -shift      0x10..0x1A      ~ "QWERTYUIOPÅ"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÆØ'"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<ZXCVBNM,.-"
+
+map +caps -altgr +shift 0x29 0x02..0x0C      ~ "½!"#¤%&/()=?"
+map +caps -altgr +shift      0x10..0x1A      ~ "qwertyuiopå"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjklæø*"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">zxcvbnm;:_"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x03 ~ "@"
+map +altgr -shift 0x04 ~ "£"
+map +altgr -shift 0x05 ~ "$"
+map +altgr -shift 0x08 ~ "{"
+map +altgr -shift 0x09 ~ "["
+map +altgr -shift 0x0A ~ "]"
+map +altgr -shift 0x0B ~ "}"
+map +altgr -shift 0x56 ~ "\"
+
+map +altgr -shift 0x12 ~ "€"
+
+map +altgr -shift 0x0D ~ "|"
+map +altgr -shift 0x32 ~ "µ"
+
+#
+# Dead keys
+#
+
+map -altgr -shift 0x0D ~ 0xFE51 # Dead acute
+map -altgr +shift 0x0D ~ 0xFE50 # Dead grave
+map -altgr -shift 0x1B ~ 0xFE57 # Dead umlaut
+map -altgr +shift 0x1B ~ 0xFE52 # Dead circumflex
+map +altgr -shift 0x1B ~ 0xFE53 # Dead tilde

src/protocols/spice/keymaps/de_ch_qwertz.keymap

@@ -0,0 +1,67 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "de-ch-qwertz"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0C      ~ "§1234567890'"
+map -caps -altgr -shift      0x10..0x1A      ~ "qwertzuiopü"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjklöä$"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<yxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0C      ~ "°+"*ç%&/()=?"
+map -caps -altgr +shift      0x10..0x1B      ~ "QWERTZUIOPè!"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLéà£"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">YXCVBNM;:_"
+
+map +caps -altgr -shift 0x29 0x02..0x0C      ~ "§1234567890'"
+map +caps -altgr -shift      0x10..0x1A      ~ "QWERTZUIOPÜ"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÖÄ$"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<YXCVBNM,.-"
+
+map +caps -altgr +shift 0x29 0x02..0x0C      ~ "°+"*ç%&/()=?"
+map +caps -altgr +shift      0x10..0x1B      ~ "qwertzuiopÈ!"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjklÉÀ£"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">yxcvbnm;:_"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x02..0x04 ~ "¦@#"
+map +altgr -shift 0x07..0x09 ~ "¬|¢"
+map +altgr -shift 0x1A..0x1B ~ "[]"
+map +altgr -shift 0x28 ~ "{"
+map +altgr -shift 0x2B ~ "}"
+map +altgr -shift 0x56 ~ "\"
+map +altgr -shift 0x12 ~ "€"
+
+#
+# Dead keys
+#
+
+map +altgr -shift 0x0C ~ 0xFE51 # Dead acute
+map -altgr -shift 0x0D ~ 0xFE52 # Dead circumflex
+map -altgr +shift 0x0D ~ 0xFE50 # Dead grave
+map +altgr -shift 0x0D ~ 0xFE53 # Dead tilde
+map -altgr -shift 0x1B ~ 0xFE57 # Dead umlaut

src/protocols/spice/keymaps/de_de_qwertz.keymap

@@ -0,0 +1,74 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "de-de-qwertz"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift      0x02..0x0C      ~ "1234567890ß"
+map -caps -altgr -shift      0x10..0x1B      ~ "qwertzuiopü+"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjklöä#"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<yxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0C      ~ "°!"§$%&/()=?"
+map -caps -altgr +shift      0x10..0x1B      ~ "QWERTZUIOPÜ*"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÖÄ'"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">YXCVBNM;:_"
+
+map +caps -altgr -shift      0x02..0x0C      ~ "!"§$%&/()=?"
+map +caps -altgr -shift      0x10..0x1B      ~ "QWERTZUIOPÜ*"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÖÄ'"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<YXCVBNM;:-"
+
+map +caps -altgr +shift 0x29 0x02..0x0C      ~ "°1234567890ß"
+map +caps -altgr +shift      0x10..0x1B      ~ "qwertzuiopü+"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjklöä#"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">yxcvbnm,._"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x03 ~ "²"
+map +altgr -shift 0x04 ~ "³"
+map +altgr -shift 0x08 ~ "{"
+map +altgr -shift 0x09 ~ "["
+map +altgr -shift 0x0A ~ "]"
+map +altgr -shift 0x0B ~ "}"
+map +altgr -shift 0x0C ~ "\"
+
+map +altgr -shift 0x10 ~ "@"
+map +altgr -shift 0x12 ~ "€"
+map +altgr -shift 0x1B ~ "~"
+
+map +altgr -shift 0x56 ~ "|"
+map +altgr -shift 0x32 ~ "µ"
+
+#
+# Dead keys
+#
+
+map -altgr +shift 0x0D ~ 0xFE50 # Dead grave
+map -altgr -shift 0x0D ~ 0xFE51 # Dead acute
+map -altgr -shift 0x29 ~ 0xFE52 # Dead circumflex
+map +altgr -shift 0x0C ~ 0xFE53 # Dead tilde
+

src/protocols/spice/keymaps/en_gb_qwerty.keymap

@@ -0,0 +1,79 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "en-gb-qwerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0D      ~ "`1234567890-="
+map -caps -altgr -shift      0x10..0x1B      ~ "qwertyuiop[]"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjkl;'#"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "\zxcvbnm,./"
+
+map -caps -altgr +shift 0x29 0x02..0x0D      ~ "¬!"£$%^&*()_+"
+map -caps -altgr +shift      0x10..0x1B      ~ "QWERTYUIOP{}"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKL:@~"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ "|ZXCVBNM<>?"
+
+map +caps -altgr -shift 0x29 0x02..0x0D      ~ "`1234567890-="
+map +caps -altgr -shift      0x10..0x1B      ~ "QWERTYUIOP[]"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKL;'#"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "\ZXCVBNM,./"
+
+map +caps -altgr +shift 0x29 0x02..0x0D      ~ "¬!"£$%^&*()_+"
+map +caps -altgr +shift      0x10..0x1B      ~ "qwertyuiop{}"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjkl:@~"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ "|zxcvbnm<>?"
+
+#
+# Keys requiring AltGr (some of which are affected by Caps Lock)
+#
+
+map +altgr -shift 0x29 ~ "¦"
+map +altgr -shift 0x05 ~ "€"
+
+map -caps +altgr -shift 0x12 ~ "é"
+map -caps +altgr +shift 0x12 ~ "É"
+map -caps +altgr -shift 0x16 ~ "ú"
+map -caps +altgr +shift 0x16 ~ "Ú"
+map -caps +altgr -shift 0x17 ~ "í"
+map -caps +altgr +shift 0x17 ~ "Í"
+map -caps +altgr -shift 0x18 ~ "ó"
+map -caps +altgr +shift 0x18 ~ "Ó"
+map -caps +altgr -shift 0x1E ~ "á"
+map -caps +altgr +shift 0x1E ~ "Á"
+map -caps +altgr -shift 0x2E ~ "ç"
+map -caps +altgr +shift 0x2E ~ "Ç"
+
+map +caps +altgr +shift 0x12 ~ "é"
+map +caps +altgr -shift 0x12 ~ "É"
+map +caps +altgr +shift 0x16 ~ "ú"
+map +caps +altgr -shift 0x16 ~ "Ú"
+map +caps +altgr +shift 0x17 ~ "í"
+map +caps +altgr -shift 0x17 ~ "Í"
+map +caps +altgr +shift 0x18 ~ "ó"
+map +caps +altgr -shift 0x18 ~ "Ó"
+map +caps +altgr +shift 0x1E ~ "á"
+map +caps +altgr -shift 0x1E ~ "Á"
+map +caps +altgr +shift 0x2E ~ "ç"
+map +caps +altgr -shift 0x2E ~ "Ç"
+

src/protocols/spice/keymaps/en_us_qwerty.keymap

@@ -0,0 +1,42 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "en-us-qwerty"
+
+map -caps -shift 0x29 0x02..0x0D      ~ "`1234567890-="
+map -caps -shift      0x10..0x1B 0x2B ~ "qwertyuiop[]\"
+map -caps -shift      0x1E..0x28      ~ "asdfghjkl;'"
+map -caps -shift      0x2C..0x35      ~ "zxcvbnm,./"
+
+map -caps +shift 0x29 0x02..0x0D      ~ "~!@#$%^&*()_+"
+map -caps +shift      0x10..0x1B 0x2B ~ "QWERTYUIOP{}|"
+map -caps +shift      0x1E..0x28      ~ "ASDFGHJKL:""
+map -caps +shift      0x2C..0x35      ~ "ZXCVBNM<>?"
+
+map +caps -shift 0x29 0x02..0x0D      ~ "`1234567890-="
+map +caps -shift      0x10..0x1B 0x2B ~ "QWERTYUIOP[]\"
+map +caps -shift      0x1E..0x28      ~ "ASDFGHJKL;'"
+map +caps -shift      0x2C..0x35      ~ "ZXCVBNM,./"
+
+map +caps +shift 0x29 0x02..0x0D      ~ "~!@#$%^&*()_+"
+map +caps +shift      0x10..0x1B 0x2B ~ "qwertyuiop{}|"
+map +caps +shift      0x1E..0x28      ~ "asdfghjkl:""
+map +caps +shift      0x2C..0x35      ~ "zxcvbnm<>?"
+

src/protocols/spice/keymaps/es_es_qwerty.keymap

@@ -0,0 +1,63 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "es-es-qwerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0D      ~ "º1234567890'¡"
+map -caps -altgr -shift      0x10..0x19 0x1B ~ "qwertyuiop+"
+map -caps -altgr -shift      0x1E..0x27 0x2B ~ "asdfghjklñç"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<zxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0D      ~ "ª!"·$%&/()=?¿"
+map -caps -altgr +shift      0x10..0x19 0x1B ~ "QWERTYUIOP*"
+map -caps -altgr +shift      0x1E..0x27 0x2B ~ "ASDFGHJKLÑÇ"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">ZXCVBNM;:_"
+
+map +caps -altgr -shift 0x29 0x02..0x0D      ~ "º1234567890'¡"
+map +caps -altgr -shift      0x10..0x19 0x1B ~ "QWERTYUIOP+"
+map +caps -altgr -shift      0x1E..0x27 0x2B ~ "ASDFGHJKLÑÇ"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<ZXCVBNM,.-"
+
+map +caps -altgr +shift 0x29 0x02..0x0D      ~ "ª!"·$%&/()=?¿"
+map +caps -altgr +shift      0x10..0x19 0x1B ~ "qwertyuiop*"
+map +caps -altgr +shift      0x1E..0x27 0x2B ~ "asdfghjklñç"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">zxcvbnm;:_"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x29 0x02..0x04 0x07 ~ "\|@#¬"
+map +altgr -shift 0x12 0x1A 0x1B       ~ "€[]"
+map +altgr -shift 0x28 0x2B            ~ "{}"
+
+#
+# Dead keys
+#
+
+map -altgr -shift 0x1A ~ 0xFE50 # Dead grave
+map -altgr -shift 0x28 ~ 0xFE51 # Dead acute
+map -altgr +shift 0x1A ~ 0xFE52 # Dead circumflex
+map +altgr -shift 0x05 ~ 0xFE53 # Dead tilde
+map -altgr +shift 0x28 ~ 0xFE57 # Dead diaeresis (umlaut)

src/protocols/spice/keymaps/es_latam_qwerty.keymap

@@ -0,0 +1,63 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "es-latam-qwerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0D      ~ "|1234567890'¿"
+map -caps -altgr -shift      0x10..0x19 0x1B ~ "qwertyuiop+"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjklñ{}"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<zxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0D      ~ "º!"#$%&/()=?¡"
+map -caps -altgr +shift      0x10..0x19 0x1B ~ "QWERTYUIOP*"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÑ[]"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">ZXCVBNM;:_"
+
+map +caps -altgr -shift 0x29 0x02..0x0D      ~ "|1234567890'¿"
+map +caps -altgr -shift      0x10..0x19 0x1B ~ "QWERTYUIOP+"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÑ{}"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<ZXCVBNM,.-"
+
+map +caps -altgr +shift 0x29 0x02..0x0D      ~ "º!"#$%&/()=?¡"
+map +caps -altgr +shift      0x10..0x19 0x1B ~ "qwertyuiop*"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjklñ[]"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">zxcvbnm;:_"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x29 0x0C ~ "¬\"
+map +altgr -shift 0x10      ~ "€"
+map +altgr -shift 0x28      ~ "^"
+
+#
+# Dead keys
+#
+
+map +altgr -shift 0x2B ~ 0xFE50 # Dead grave
+map -altgr -shift 0x1A ~ 0xFE51 # Dead acute
+map -altgr +shift 0x1A ~ 0xFE57 # Dead diaeresis (umlaut)
+map +altgr -shift 0x1B ~ 0xFE53 # Dead tilde
+

src/protocols/spice/keymaps/failsafe.keymap

@@ -0,0 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "failsafe"
+

src/protocols/spice/keymaps/fr_be_azerty.keymap

@@ -0,0 +1,76 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "fr-be-azerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0D      ~ "²&é"'(§è!çà)-"
+map -caps -altgr -shift      0x10..0x19 0x1B ~ "azertyuiop$"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "qsdfghjklmùµ"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<wxcvbn,;:="
+
+map -caps -altgr +shift 0x29 0x02..0x0D      ~ "³1234567890°_"
+map -caps -altgr +shift      0x10..0x19 0x1B ~ "AZERTYUIOP£"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "QSDFGHJKLM%£"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">WXCVBN?./+"
+
+map +caps -altgr -shift 0x29 0x02..0x0D      ~ "²1234567890°_"
+map +caps -altgr -shift      0x10..0x19 0x1B ~ "AZERTYUIOP£"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "QSDFGHJKLM%£"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<WXCVBN?./+"
+
+map +caps -altgr +shift 0x29 0x02..0x0D      ~ "³&é"'(§è!çà)-"
+map +caps -altgr +shift      0x10..0x19 0x1B ~ "azertyuiop$"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "qsdfghjklmùµ"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">wxcvbn,;:="
+
+#
+# Keys requiring AltGr (unaffected by Caps Lock, but Shift must not be pressed)
+#
+
+map +altgr -shift 0x02..0x04 ~ "|@#"
+map +altgr -shift 0x0A..0x0B ~ "{}"
+map +altgr -shift 0x1A..0x1B ~ "[]"
+
+map +altgr -shift 0x12 ~ "€"
+map +altgr -shift 0x56 ~ "\"
+map +altgr -shift 0x07 ~ "^"
+
+#
+# Dead keys requiring AltGr (unaffected by Caps Lock or Shift)
+#
+
+map +altgr 0x35 ~ 0xFE53 # Dead tilde
+map +altgr 0x28 ~ 0xFE51 # Dead acute
+map +altgr 0x2B ~ 0xFE50 # Dead grave
+
+#
+# Dead keys (affected by Caps Lock and Shift)
+#
+
+map -caps -altgr -shift 0x1A ~ 0xFE52 # Dead circumflex
+map -caps -altgr +shift 0x1A ~ 0xFE57 # Dead umlaut
+
+map +caps -altgr -shift 0x1A ~ 0xFE57 # Dead umlaut
+map +caps -altgr +shift 0x1A ~ 0xFE52 # Dead circumflex
+

src/protocols/spice/keymaps/fr_ca_qwerty.keymap

@@ -0,0 +1,54 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "fr-ca-qwerty"
+
+#
+# Basic keys
+#
+
+map -altgr -shift 0x29 0x02..0x0D      ~ "#1234567890-="
+map -altgr -shift      0x10..0x1B 0x2B ~ "qwertyuiop^¸<"
+map -altgr -shift      0x1E..0x28      ~ "asdfghjkl;`"
+map -altgr -shift      0x2C..0x35      ~ "zxcvbnm,.é"
+
+map -altgr +shift 0x29 0x02..0x0D      ~ "|!"/$%?&*()_+"
+map -altgr +shift      0x10..0x1B 0x2B ~ "QWERTYUIOP^¨>"
+map -altgr +shift      0x1E..0x28      ~ "ASDFGHJKL:`"
+map -altgr +shift      0x2C..0x35      ~ "ZXCVBNM'.É"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x29 0x02..0x0D      ~ "\±@£¢¤¬¦²³¼½¾"
+map +altgr -shift      0x18..0x1B 0x2B ~ "§¶[]}"
+map +altgr -shift      0x27..0x28      ~ "~{"
+map +altgr -shift      0x32..0x33 0x35 ~ "µ¯´"
+
+#
+# Combined accents
+#
+
+map -altgr -shift 0x1A ~ 0x0302 # COMBINING CIRCUMFLEX ACCENT
+map -altgr -shift 0x1B ~ 0x0327 # COMBINING CEDILLA
+map -altgr +shift 0x1B ~ 0x0308 # COMBINING DIAERESIS
+map -altgr -shift 0x28 ~ 0x0300 # COMBINING GRAVE ACCENT
+map +altgr -shift 0x35 ~ 0x0301 # COMBINING ACUTE ACCENT

src/protocols/spice/keymaps/fr_ch_qwertz.keymap

@@ -0,0 +1,68 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "fr-ch-qwertz"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0C      ~ "§1234567890'"
+map -caps -altgr -shift      0x10..0x1A      ~ "qwertzuiopè"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjkléà$"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<yxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0C      ~ "°+"*ç%&/()=?"
+map -caps -altgr +shift      0x10..0x1B      ~ "QWERTZUIOPü!"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLöä£"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">YXCVBNM;:_"
+
+map +caps -altgr -shift 0x29 0x02..0x0C      ~ "§1234567890'"
+map +caps -altgr -shift      0x10..0x1A      ~ "QWERTZUIOPè"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLéà$"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<YXCVBNM,.-"
+
+map +caps -altgr +shift 0x29 0x02..0x0C      ~ "°+"*ç%&/()=?"
+map +caps -altgr +shift      0x10..0x1B      ~ "qwertzuiopü!"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjklöä£"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">yxcvbnm;:_"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x02..0x04 ~ "¦@#"
+map +altgr -shift 0x07..0x09 ~ "¬|¢"
+map +altgr -shift 0x1A 0x1B  ~ "[]"
+map +altgr -shift 0x28 0x2B  ~ "{}"
+map +altgr -shift 0x56       ~ "\"
+
+map +altgr -shift 0x12 ~ "€"
+
+#
+# Dead keys
+#
+
+map -altgr -shift 0x1B ~ 0xFE57 # Dead umlaut
+map +altgr -shift 0x0C ~ 0xFE51 # Dead acute
+map -altgr -shift 0x0D ~ 0xFE52 # Dead circumflex
+map -altgr +shift 0x0D ~ 0xFE50 # Dead grave
+map +altgr -shift 0x0D ~ 0xFE53 # Dead tilde
+

src/protocols/spice/keymaps/fr_fr_azerty.keymap

@@ -0,0 +1,65 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "fr-fr-azerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0D      ~ "²&é"'(-è_çà)="
+map -caps -altgr -shift      0x10..0x19 0x1B ~ "azertyuiop$"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "qsdfghjklmù*"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<wxcvbn,;:!"
+
+map -caps -altgr +shift      0x02..0x0D      ~ "1234567890°+"
+map -caps -altgr +shift      0x10..0x19 0x1B ~ "AZERTYUIOP£"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "QSDFGHJKLM%µ"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">WXCVBN?./§"
+
+map +caps -altgr -shift 0x29 0x02..0x0D      ~ "²1234567890°+"
+map +caps -altgr -shift      0x10..0x19 0x1B ~ "AZERTYUIOP£"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "QSDFGHJKLM%µ"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<WXCVBN?./§"
+
+map +caps -altgr +shift      0x02..0x0D      ~ "&é"'(-è_çà)="
+map +caps -altgr +shift      0x10..0x19 0x1B ~ "azertyuiop$"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "qsdfghjklmù*"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">wxcvbn,;:!"
+
+#
+# Keys requiring AltGr (unaffected by Caps Lock, but Shift must not be pressed)
+#
+
+map +altgr -shift 0x03..0x0D ~ "~#{[|`\^@]}"
+
+map +altgr -shift 0x12 ~ "€"
+map +altgr -shift 0x1B ~ "¤"
+
+#
+# Dead keys (affected by Caps Lock and Shift)
+#
+
+map -caps -altgr -shift 0x1A ~ 0xFE52 # Dead circumflex
+map -caps -altgr +shift 0x1A ~ 0xFE57 # Dead umlaut
+
+map +caps -altgr -shift 0x1A ~ 0xFE57 # Dead umlaut
+map +caps -altgr +shift 0x1A ~ 0xFE52 # Dead circumflex
+

src/protocols/spice/keymaps/generate.pl

@@ -0,0 +1,253 @@
+#!/usr/bin/env perl
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+#
+# generate.pl
+#
+# Parse .keymap files, producing corresponding .c files that can be included
+# into the Spice plugin source.
+#
+
+# We need at least Perl 5.8 for Unicode's sake
+use 5.008;
+
+sub keymap_symbol {
+    my $name = shift;
+    $name =~ s/-/_/g;
+    return 'guac_spice_keymap_' . $name;
+}
+
+#
+# _generated_keymaps.c
+#
+
+my @keymaps = ();
+
+open OUTPUT, ">", "_generated_keymaps.c";
+print OUTPUT 
+       '#include "config.h"'                                . "\n"
+     . '#include "keymap.h"'                                . "\n"
+     .                                                        "\n"
+     . '#include <stddef.h>'                                . "\n"
+     . '#include <spice-client-glib-2.0/spice-client.h>'    . "\n"
+     .                                                        "\n";
+
+for my $filename (@ARGV) {
+
+    my $content = "";
+    my $parent = "";
+    my $layout_name = "";
+
+    # Parse file
+    open INPUT, '<', "$filename";
+    binmode INPUT, ":encoding(utf8)";
+    while (<INPUT>) {
+
+        chomp;
+
+        # Comments
+        if (m/^\s*#/) {}
+
+        # Name
+        elsif ((my $name) = m/^\s*name\s+"(.*)"\s*(?:#.*)?$/) {
+            $layout_name = $name;
+        }
+
+        # Parent map
+        elsif ((my $name) = m/^\s*parent\s+"(.*)"\s*(?:#.*)?$/) {
+            $parent = keymap_symbol($name);
+        }
+
+        # Map
+        elsif ((my $range, my $onto) =
+               m/^\s*map\s+([^~]*)\s+~\s+(".*"|0x[0-9A-Fa-f]+)\s*(?:#.*)?$/) {
+
+            my @keysyms   = ();
+            my @scancodes = ();
+
+            my $ext_flags = 0;
+            my $set_shift = 0;
+            my $set_altgr = 0;
+            my $set_caps  = 0;
+            my $set_num   = 0;
+
+            my $clear_shift = 0;
+            my $clear_altgr = 0;
+            my $clear_caps  = 0;
+            my $clear_num   = 0;
+
+            # Parse ranges and options
+            foreach $_ (split(/\s+/, $range)) {
+
+                # Set option/modifier
+                if ((my $opt) = m/^\+([a-z]+)$/) {
+                    if    ($opt eq "shift") { $set_shift = 1; }
+                    elsif ($opt eq "altgr") { $set_altgr = 1; }
+                    elsif ($opt eq "caps")  { $set_caps  = 1; }
+                    elsif ($opt eq "num")   { $set_num   = 1; }
+                    elsif ($opt eq "ext")   { $ext_flags = 1; }
+                    else {
+                        die "$filename: $.: ERROR: "
+                          . "Invalid set option\n";
+                    }
+                }
+
+                # Clear option/modifier
+                elsif ((my $opt) = m/^-([a-z]+)$/) {
+                    if    ($opt eq "shift") { $clear_shift = 1; }
+                    elsif ($opt eq "altgr") { $clear_altgr = 1; }
+                    elsif ($opt eq "caps")  { $clear_caps  = 1; }
+                    elsif ($opt eq "num")   { $clear_num   = 1; }
+                    else {
+                        die "$filename: $.: ERROR: "
+                          . "Invalid clear option\n";
+                    }
+                }
+
+                # Single scancode
+                elsif ((my $scancode) = m/^(0x[0-9A-Fa-f]+)$/) {
+                    $scancodes[++$#scancodes] = hex($scancode);
+                }
+
+                # Range of scancodes
+                elsif ((my $start, my $end) =
+                       m/^(0x[0-9A-Fa-f]+)\.\.(0x[0-9A-Fa-f]+)$/) {
+                    for (my $i=hex($start); $i<=hex($end); $i++) {
+                        $scancodes[++$#scancodes] = $i;
+                    }
+                }
+
+                # Invalid token
+                else {
+                    die "$filename: $.: ERROR: "
+                      . "Invalid token\n";
+                }
+
+            }
+
+            # Parse onto
+            if ($onto =~ m/^0x/) {
+                $keysyms[0] = hex($onto);
+            }
+            else {
+                foreach my $char (split('',
+                                  substr($onto, 1, length($onto)-2))) {
+                    my $codepoint = ord($char);
+                    if ($codepoint >= 0x0100) {
+                        $keysyms[++$#keysyms] = 0x01000000 | $codepoint;
+                    }
+                    else {
+                        $keysyms[++$#keysyms] = $codepoint;
+                    }
+                }
+            }
+
+            # Check mapping
+            if ($#keysyms != $#scancodes) {
+                die "$filename: $.: ERROR: "
+                  . "Keysym and scancode range lengths differ\n";
+            }
+
+            # Write keysym/scancode pairs
+            for (my $i=0; $i<=$#keysyms; $i++) {
+
+                $content .= "    {"
+                         .  " .keysym = "   . $keysyms[$i] . ","
+                         .  " .scancode = " . $scancodes[$i];
+
+                # Modifiers that must be active
+                $content .= ", .set_modifiers = 0";
+                $content .= " | GUAC_SPICE_KEYMAP_MODIFIER_SHIFT" if $set_shift;
+                $content .= " | GUAC_SPICE_KEYMAP_MODIFIER_ALTGR" if $set_altgr;
+
+                # Modifiers that must be inactive
+                $content .= ", .clear_modifiers = 0";
+                $content .= " | GUAC_SPICE_KEYMAP_MODIFIER_SHIFT" if $clear_shift;
+                $content .= " | GUAC_SPICE_KEYMAP_MODIFIER_ALTGR" if $clear_altgr;
+
+                # Locks that must be set
+                $content .= ", .set_locks = 0";
+                $content .= " | SPICE_INPUTS_NUM_LOCK" if $set_num;
+                $content .= " | SPICE_INPUTS_CAPS_LOCK" if $set_caps;
+
+                # Locks that must NOT be set
+                $content .= ", .clear_locks = 0";
+                $content .= " | SPICE_INPUTS_NUM_LOCK" if $clear_num;
+                $content .= " | SPICE_INPUTS_CAPS_LOCK" if $clear_caps;
+
+                $content .= " },\n";
+
+            }
+
+        }
+
+        # Invalid token
+        elsif (m/\S/) {
+            die "$filename: $.: ERROR: "
+              . "Invalid token\n";
+        }
+
+    }
+    close INPUT;
+
+    # Header
+    my $sym = keymap_symbol($layout_name);
+    print OUTPUT
+                                                                     "\n"
+         . '/* Autogenerated from ' . $filename . ' */'            . "\n"
+         . 'static guac_spice_keysym_desc __' . $sym . '[] = {'    . "\n"
+         .      $content
+         . '    {0}'                                               . "\n"
+         . '};'                                                    . "\n";
+
+    # Desc header
+    print OUTPUT                                                     "\n"
+          . 'static const guac_spice_keymap ' . $sym . ' = { '     . "\n";
+
+    # Layout name
+    print OUTPUT "    .name = \"$layout_name\",\n";
+
+    # Parent layout (if any)
+    if ($parent) {
+        print OUTPUT "    .parent = &$parent,\n";
+    }
+
+    # Desc footer
+    print OUTPUT
+            '    .mapping = __' . $sym                             . "\n"
+          . '};'                                                   . "\n";
+
+    $keymaps[++$#keymaps] = $sym;
+    print STDERR "Added: $layout_name\n";
+
+}
+
+print OUTPUT                                                         "\n"
+      . 'const guac_spice_keymap* GUAC_SPICE_KEYMAPS[] = {'        . "\n";
+
+foreach my $keymap (@keymaps) {
+    print OUTPUT "    &$keymap,\n";
+}
+print OUTPUT
+        '    NULL'                                                 . "\n"
+      . '};'                                                       . "\n";
+
+close OUTPUT;
+

src/protocols/spice/keymaps/hu_hu_qwertz.keymap

@@ -0,0 +1,108 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "hu-hu-qwertz"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0D      ~ "0123456789öüó"
+map -caps -altgr -shift      0x10..0x1B      ~ "qwertzuıopőú"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjkléáű"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "íyxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0D      ~ "§'"+!%/=()ÖÜÓ"
+map -caps -altgr +shift      0x10..0x1B      ~ "QWERTZUIOPŐÚ"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÉÁŰ"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ "ÍYXCVBNM?:_"
+
+map +caps -altgr -shift 0x29 0x02..0x0D      ~ "0123456789ÖÜÓ"
+map +caps -altgr -shift      0x10..0x1B      ~ "QWERTZUIOPŐÚ"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÉÁŰ"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "ÍYXCVBNM,.-"
+
+map +caps -altgr +shift 0x29 0x02..0x0D      ~ "§'"+!%/=()öüó"
+map +caps -altgr +shift      0x10..0x1B      ~ "qwertzuiopőú"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjkléáű"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ "íyxcvbnm?:_"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x02 ~ "~"
+map +altgr -shift 0x08 ~ "`"
+
+map +altgr -shift 0x10 ~ "\"
+map +altgr -shift 0x11 ~ "|"
+map +altgr -shift 0x12 ~ "Ä"
+map +altgr -shift 0x16 ~ "€"
+map +altgr -shift 0x17 ~ "Í"
+map +altgr -shift 0x1A ~ "÷"
+map +altgr -shift 0x1B ~ "×"
+
+map +altgr -shift 0x1E ~ "ä"
+map +altgr -shift 0x1F ~ "đ"
+map +altgr -shift 0x20 ~ "Đ"
+map +altgr -shift 0x21 ~ "["
+map +altgr -shift 0x22 ~ "]"
+map +altgr -shift 0x24 ~ "í"
+map +altgr -shift 0x25 ~ "ł"
+map +altgr -shift 0x26 ~ "Ł"
+map +altgr -shift 0x27 ~ "$"
+map +altgr -shift 0x28 ~ "ß"
+map +altgr -shift 0x2B ~ "¤"
+
+map +altgr -shift 0x56 ~ "<"
+map +altgr -shift 0x2C ~ ">"
+map +altgr -shift 0x2D ~ "#"
+map +altgr -shift 0x2E ~ "&"
+map +altgr -shift 0x2F ~ "@"
+map +altgr -shift 0x30 ~ "{"
+map +altgr -shift 0x31 ~ "}"
+map +altgr -shift 0x32 ~ "<"
+map +altgr -shift 0x33 ~ ";"
+map +altgr -shift 0x34 ~ ">"
+map +altgr -shift 0x35 ~ "*"
+
+
+#
+# Keys requiring AltGr & Shift
+#
+
+
+#
+# Dead keys
+#
+
+map +altgr -shift 0x03 ~ 0xFE5A # Dead caron
+map +altgr -shift 0x04 ~ 0xFE52 # Dead circumflex
+map +altgr -shift 0x05 ~ 0xFE55 # Dead breve
+map +altgr -shift 0x06 ~ 0xFE58 # Dead abovering
+map +altgr -shift 0x07 ~ 0xFE5C # Dead ogonek
+map +altgr -shift 0x09 ~ 0xFE56 # Dead abovedot
+map +altgr -shift 0x0A ~ 0xFE51 # Dead acute
+map +altgr -shift 0x0B ~ 0xFE59 # Dead doubleacute
+map +altgr -shift 0x0C ~ 0xFE57 # Dead diaeresis
+map +altgr -shift 0x0D ~ 0xFE5B # Dead cedilla
+
+
+# END

src/protocols/spice/keymaps/it_it_qwerty.keymap

@@ -0,0 +1,59 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "it-it-qwerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0D      ~ "\1234567890'ì"
+map -caps -altgr -shift      0x10..0x1B      ~ "qwertyuiopè+"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjklòàù"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<zxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0D      ~ "|!"£$%&/()=?^"
+map -caps -altgr +shift      0x10..0x1B      ~ "QWERTYUIOPé*"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLç°§"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">ZXCVBNM;:_"
+
+map +caps -altgr -shift 0x29 0x02..0x0D      ~ "\1234567890'ì"
+map +caps -altgr -shift      0x10..0x1B      ~ "QWERTYUIOPè+"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLòàù"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<ZXCVBNM,.-"
+
+map +caps -altgr +shift 0x29 0x02..0x0D      ~ "|!"£$%&/()=?^"
+map +caps -altgr +shift      0x10..0x1B      ~ "qwertyuiopé*"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjklç°§"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">zxcvbnm;:_"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x12 ~ "€"
+map +altgr -shift 0x1A ~ "["
+map +altgr -shift 0x1B ~ "]"
+map +altgr -shift 0x27 ~ "@"
+map +altgr -shift 0x28 ~ "#"
+
+map +altgr +shift 0x1A ~ "{"
+map +altgr +shift 0x1B ~ "}"
+

src/protocols/spice/keymaps/ja_jp_qwerty.keymap

@@ -0,0 +1,35 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "ja-jp-qwerty"
+
+map -shift      0x02..0x0D 0x7D ~ "1234567890-^\"
+map -shift      0x10..0x1B      ~ "qwertyuiop@["
+map -shift      0x1E..0x28 0x2B ~ "asdfghjkl;:]"
+map -shift      0x2C..0x35 0x73 ~ "zxcvbnm,./\"
+
+map +shift      0x02..0x0A 0x0C 0x0D 0x7D ~ "!"#$%&'()=~|"
+map +shift      0x10..0x1B      ~ "QWERTYUIOP`{"
+map +shift      0x1E..0x28 0x2B ~ "ASDFGHJKL+*}"
+map +shift      0x2C..0x35 0x73 ~ "ZXCVBNM<>?_"
+
+map -shift      0x29            ~ 0xFF28
+map -shift      0x29            ~ 0xFF2A
+map +shift      0x29            ~ 0xFF29

src/protocols/spice/keymaps/no_no_qwerty.keymap

@@ -0,0 +1,75 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "no-no-qwerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0C      ~ "|1234567890+"
+map -caps -altgr -shift      0x10..0x1A      ~ "qwertyuiopå"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjkløæ'"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<zxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0C      ~ "|!"#¤%&/()=?"
+map -caps -altgr +shift      0x10..0x1A      ~ "QWERTYUIOPÅ"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLØÆ*"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">ZXCVBNM;:_"
+
+map +caps -altgr -shift 0x29 0x02..0x0C      ~ "|1234567890+"
+map +caps -altgr -shift      0x10..0x1A      ~ "QWERTYUIOPÅ"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLØÆ'"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<ZXCVBNM,.-"
+
+map +caps -altgr +shift 0x29 0x02..0x0C      ~ "|!"#¤%&/()=?"
+map +caps -altgr +shift      0x10..0x1A      ~ "qwertyuiopå"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjkløæ*"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">zxcvbnm;:_"
+
+map -altgr -shift 0x0D ~ "\"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x03 ~ "@"
+map +altgr -shift 0x04 ~ "£"
+map +altgr -shift 0x05 ~ "$"
+map +altgr -shift 0x08 ~ "{"
+map +altgr -shift 0x09 ~ "["
+map +altgr -shift 0x0A ~ "]"
+map +altgr -shift 0x0B ~ "}"
+map +altgr -shift 0x56 ~ "\"
+
+map +altgr -shift 0x12 ~ "€"
+
+map +altgr -shift 0x0D ~ "|"
+map +altgr -shift 0x32 ~ "µ"
+
+#
+# Dead keys
+#
+
+map +altgr -shift 0x0D ~ 0xFE51 # Dead acute
+map -altgr +shift 0x0D ~ 0xFE50 # Dead grave
+map -altgr -shift 0x1B ~ 0xFE57 # Dead umlaut
+map -altgr +shift 0x1B ~ 0xFE52 # Dead circumflex
+map +altgr -shift 0x1B ~ 0xFE53 # Dead tilde

src/protocols/spice/keymaps/pl_pl_qwerty.keymap

@@ -0,0 +1,63 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "pl-pl-qwerty"
+
+map -caps -shift 0x29 0x02..0x0D      ~ "`1234567890-="
+map -caps -shift      0x10..0x1B 0x2B ~ "qwertyuiop[]\"
+map -caps -shift      0x1E..0x28      ~ "asdfghjkl;'"
+map -caps -shift      0x2C..0x35      ~ "zxcvbnm,./"
+
+map -caps +shift 0x29 0x02..0x0D      ~ "~!@#$%^&*()_+"
+map -caps +shift      0x10..0x1B 0x2B ~ "QWERTYUIOP{}|"
+map -caps +shift      0x1E..0x28      ~ "ASDFGHJKL:""
+map -caps +shift      0x2C..0x35      ~ "ZXCVBNM<>?"
+
+map +caps -shift 0x29 0x02..0x0D      ~ "`1234567890-="
+map +caps -shift      0x10..0x1B 0x2B ~ "QWERTYUIOP[]\"
+map +caps -shift      0x1E..0x28      ~ "ASDFGHJKL;'"
+map +caps -shift      0x2C..0x35      ~ "ZXCVBNM,./"
+
+map +caps +shift 0x29 0x02..0x0D      ~ "~!@#$%^&*()_+"
+map +caps +shift      0x10..0x1B 0x2B ~ "qwertyuiop{}|"
+map +caps +shift      0x1E..0x28      ~ "asdfghjkl:""
+map +caps +shift      0x2C..0x35      ~ "zxcvbnm<>?"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x16      ~ "€"
+
+map -caps -shift +altgr 0x12 0x18           ~ "ęó"
+map -caps -shift +altgr 0x1E 0x1F 0x26      ~ "ąśł"
+map -caps -shift +altgr 0x2C 0x2D 0x2E 0x31 ~ "żźćń"
+
+map -caps +shift +altgr 0x12 0x18           ~ "ĘÓ"
+map -caps +shift +altgr 0x1E 0x1F 0x26      ~ "ĄŚŁ"
+map -caps +shift +altgr 0x2C 0x2D 0x2E 0x31 ~ "ŻŹĆŃ"
+
+map +caps -shift +altgr 0x12 0x18           ~ "ĘÓ"
+map +caps -shift +altgr 0x1E 0x1F 0x26      ~ "ĄŚŁ"
+map +caps -shift +altgr 0x2C 0x2D 0x2E 0x31 ~ "ŻŹĆŃ"
+
+map +caps +shift +altgr 0x12 0x18           ~ "ęó"
+map +caps +shift +altgr 0x1E 0x1F 0x26      ~ "ąśł"
+map +caps +shift +altgr 0x2C 0x2D 0x2E 0x31 ~ "żźćń"

src/protocols/spice/keymaps/pt_br_qwerty.keymap

@@ -0,0 +1,66 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "pt-br-qwerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0D      ~ "'1234567890-="
+map -caps -altgr -shift      0x10..0x19 0x1B ~ "qwertyuiop["
+map -caps -altgr -shift      0x1E..0x27 0x2B ~ "asdfghjklç]"
+map -caps -altgr -shift 0x56 0x2C..0x35 0x73 ~ "\zxcvbnm,.;/"
+
+map -caps -altgr +shift 0x29 0x02..0x06 0x08..0x0D ~ ""!@#$%&*()_+"
+map -caps -altgr +shift      0x10..0x19 0x1B       ~ "QWERTYUIOP{"
+map -caps -altgr +shift      0x1E..0x27 0x2B       ~ "ASDFGHJKLÇ}"
+map -caps -altgr +shift 0x56 0x2C..0x35 0x73       ~ "|ZXCVBNM<>:?"
+
+map +caps -altgr -shift 0x29 0x02..0x0D      ~ "'1234567890-="
+map +caps -altgr -shift      0x10..0x19 0x1B ~ "QWERTYUIOP["
+map +caps -altgr -shift      0x1E..0x27 0x2B ~ "ASDFGHJKLÇ]"
+map +caps -altgr -shift 0x56 0x2C..0x35 0x73 ~ "\ZXCVBNM,.;/"
+
+map +caps -altgr +shift 0x29 0x02..0x06 0x08..0x0D ~ ""!@#$%&*()_+"
+map +caps -altgr +shift      0x10..0x19 0x1B       ~ "qwertyuiop{"
+map +caps -altgr +shift      0x1E..0x27 0x2B       ~ "asdfghjklç}"
+map +caps -altgr +shift 0x56 0x2C..0x35 0x73       ~ "|zxcvbnm<>:?"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x02..0x07 0x0D ~ "¹²³£¢¬§"
+map +altgr -shift 0x10..0x11 ~ "/?"
+map +altgr -shift 0x12 ~ "°"
+map +altgr -shift 0x1B ~ "ª"
+map +altgr -shift 0x2B ~ "º"
+map +altgr -shift 0x2E ~ "₢"
+
+#
+# Dead keys
+#
+
+map -altgr +shift 0x07 ~ 0xFE57 # Dead diaeresis (umlaut)
+map -altgr +shift 0x1A ~ 0xFE50 # Dead grave
+map -altgr -shift 0x1A ~ 0xFE51 # Dead acute
+map -altgr +shift 0x28 ~ 0xFE52 # Dead circumflex
+map -altgr -shift 0x28 ~ 0xFE53 # Dead tilde

src/protocols/spice/keymaps/sv_se_qwerty.keymap

@@ -0,0 +1,74 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "sv-se-qwerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0C      ~ "§1234567890+"
+map -caps -altgr -shift      0x10..0x1A      ~ "qwertyuiopå"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjklöä'"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<zxcvbnm,.-"
+
+map -caps -altgr +shift 0x29 0x02..0x0C      ~ "½!"#¤%&/()=?"
+map -caps -altgr +shift      0x10..0x1A      ~ "QWERTYUIOPÅ"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÖÄ*"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">ZXCVBNM;:_"
+
+map +caps -altgr -shift 0x29 0x02..0x0C      ~ "§1234567890+"
+map +caps -altgr -shift      0x10..0x1A      ~ "QWERTYUIOPÅ"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLÖÄ'"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<ZXCVBNM,.-"
+
+map +caps -altgr +shift 0x29 0x02..0x0C      ~ "½!"#¤%&/()=?"
+map +caps -altgr +shift      0x10..0x1A      ~ "qwertyuiopå"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjklöä*"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">zxcvbnm;:_"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x03 ~ "@"
+map +altgr -shift 0x04 ~ "£"
+map +altgr -shift 0x05 ~ "$"
+map +altgr -shift 0x08 ~ "{"
+map +altgr -shift 0x09 ~ "["
+map +altgr -shift 0x0A ~ "]"
+map +altgr -shift 0x0B ~ "}"
+map +altgr -shift 0x0C ~ "\"
+
+map +altgr -shift 0x12 ~ "€"
+
+map +altgr -shift 0x56 ~ "|"
+map +altgr -shift 0x32 ~ "µ"
+
+#
+# Dead keys
+#
+
+map -altgr -shift 0x0D ~ 0xFE51 # Dead acute
+map -altgr +shift 0x0D ~ 0xFE50 # Dead grave
+map -altgr -shift 0x1B ~ 0xFE57 # Dead umlaut
+map -altgr +shift 0x1B ~ 0xFE52 # Dead circumflex
+map +altgr -shift 0x1B ~ 0xFE53 # Dead tilde
+

src/protocols/spice/keymaps/tr_tr_qwerty.keymap

@@ -0,0 +1,92 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+parent  "base"
+name    "tr-tr-qwerty"
+
+#
+# Basic keys
+#
+
+map -caps -altgr -shift 0x29 0x02..0x0D      ~ ""1234567890*-"
+map -caps -altgr -shift      0x10..0x1B      ~ "qwertyuıopğü"
+map -caps -altgr -shift      0x1E..0x28 0x2B ~ "asdfghjklşi,"
+map -caps -altgr -shift 0x56 0x2C..0x35      ~ "<zxcvbnmöç."
+
+map -caps -altgr +shift 0x29 0x02..0x03      ~ "é!'"
+map -caps -altgr +shift      0x05..0x0D      ~ "+%&/()=?_"
+map -caps -altgr +shift      0x10..0x1B      ~ "QWERTYUIOPĞÜ"
+map -caps -altgr +shift      0x1E..0x28 0x2B ~ "ASDFGHJKLŞİ;"
+map -caps -altgr +shift 0x56 0x2C..0x35      ~ ">ZXCVBNMÖÇ:"
+
+map +caps -altgr -shift 0x29 0x02..0x0D      ~ ""1234567890*-"
+map +caps -altgr -shift      0x10..0x1B      ~ "QWERTYUIOPĞÜ"
+map +caps -altgr -shift      0x1E..0x28 0x2B ~ "ASDFGHJKLŞİ,"
+map +caps -altgr -shift 0x56 0x2C..0x35      ~ "<ZXCVBNMÖÇ."
+
+map +caps -altgr +shift 0x29 0x02..0x03      ~ "é!'"
+map +caps -altgr +shift      0x05..0x0D      ~ "+%&/()=?_"
+map +caps -altgr +shift      0x10..0x1B      ~ "qwertyuıopğü"
+map +caps -altgr +shift      0x1E..0x28 0x2B ~ "asdfghjklşi;"
+map +caps -altgr +shift 0x56 0x2C..0x35      ~ ">zxcvbnmöç:"
+
+#
+# Keys requiring AltGr
+#
+
+map +altgr -shift 0x29 0x02..0x06      ~ "<>£#$½"
+map +altgr -shift      0x08..0x0D      ~ "{[]}\|"
+
+map +altgr -shift 0x10 ~ "@"
+map +altgr -shift 0x12 ~ "€"
+map +altgr -shift 0x14 ~ "₺"
+map +altgr -shift 0x1F ~ "ß"
+
+map +altgr -shift 0x56 ~ "|"
+
+
+#
+# Keys requiring AltGr and vary by Shift and Caps Lock
+#
+
+map -caps +altgr -shift 0x17 ~ "i"
+map -caps +altgr -shift 0x1E ~ "æ"
+
+map -caps +altgr +shift 0x17 ~ "İ"
+map -caps +altgr +shift 0x1E ~ "Æ"
+
+map +caps +altgr -shift 0x17 ~ "İ"
+map +caps +altgr -shift 0x1E ~ "Æ"
+
+map +caps +altgr +shift 0x1E ~ "æ"
+map +caps +altgr +shift 0x17 ~ "i"
+
+#
+# Dead keys
+#
+
+map -altgr +shift 0x04 ~ 0xFE52 # Dead circumflex
+
+map +altgr -shift 0x1A ~ 0xFE57 # Dead diaeresis (umlaut)
+map +altgr -shift 0x1B ~ 0xFE53 # Dead tilde
+
+map +altgr -shift 0x27 ~ 0xFE51 # Dead acute
+map +altgr -shift 0x2B ~ 0xFE50 # Dead grave
+
+# END

src/protocols/spice/log.c

@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "client.h"
+#include "common/iconv.h"
+#include "common/surface.h"
+
+#include <cairo/cairo.h>
+#include <guacamole/client.h>
+#include <guacamole/layer.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <syslog.h>
+
+void guac_spice_client_log_info(const char* format, ...) {
+
+    char message[2048];
+
+    /* Copy log message into buffer */
+    va_list args;
+    va_start(args, format);
+    vsnprintf(message, sizeof(message), format, args);
+    va_end(args);
+
+    /* Log to syslog */
+    syslog(LOG_INFO, "%s", message);
+
+}
+
+void guac_spice_client_log_error(const char* format, ...) {
+
+    char message[2048];
+
+    /* Copy log message into buffer */
+    va_list args;
+    va_start(args, format);
+    vsnprintf(message, sizeof(message), format, args);
+    va_end(args);
+
+    /* Log to syslog */
+    syslog(LOG_ERR, "%s", message);
+
+}
+

src/protocols/spice/log.h

@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_LOG_H
+#define GUAC_SPICE_LOG_H
+
+#include "config.h"
+
+#include "client.h"
+#include "common/iconv.h"
+#include "common/surface.h"
+
+#include <cairo/cairo.h>
+#include <guacamole/client.h>
+#include <guacamole/layer.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <syslog.h>
+
+/**
+ * Callback invoked by Spice when an informational message needs to be
+ * logged.
+ *
+ * @param format
+ *     A printf-style format string to log.
+ *
+ * @param ...
+ *     The values to use when filling the conversion specifiers within the
+ *     format string.
+ */
+void guac_spice_client_log_info(const char* format, ...);
+
+/**
+ * Callback invoked by Spice when an error message needs to be logged.
+ *
+ * @param format
+ *     A printf-style format string to log.
+ *
+ * @param ...
+ *     The values to use when filling the conversion specifiers within the
+ *     format string.
+ */
+void guac_spice_client_log_error(const char* format, ...);
+
+#endif /* GUAC_SPICE_LOG_H */
+

src/protocols/spice/settings.c

@@ -0,0 +1,675 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "argv.h"
+#include "client.h"
+#include "common/defaults.h"
+#include "settings.h"
+#include "spice-defaults.h"
+#include "spice-constants.h"
+
+#include <guacamole/user.h>
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+/* Client plugin arguments */
+const char* GUAC_SPICE_CLIENT_ARGS[] = {
+    "hostname",
+    "port",
+    "tls",
+    "tls-verify",
+    "ca",
+    "ca-file",
+    "pubkey",
+    "proxy",
+    "read-only",
+    "encodings",
+    GUAC_SPICE_ARGV_USERNAME,
+    GUAC_SPICE_ARGV_PASSWORD,
+    "swap-red-blue",
+    "color-depth",
+    "cursor",
+    "autoretry",
+    "clipboard-encoding",
+
+    "enable-audio",
+    "enable-audio-input",
+    "file-transfer",
+    "file-directory",
+    "file-transfer-ro",
+    "file-transfer-create-folder",
+    "disable-download",
+    "disable-upload",
+    "server-layout",
+
+#ifdef ENABLE_COMMON_SSH
+    "enable-sftp",
+    "sftp-hostname",
+    "sftp-host-key",
+    "sftp-port",
+    "sftp-username",
+    "sftp-password",
+    "sftp-private-key",
+    "sftp-passphrase",
+    "sftp-directory",
+    "sftp-root-directory",
+    "sftp-server-alive-interval",
+    "sftp-disable-download",
+    "sftp-disable-upload",
+#endif
+
+    "recording-path",
+    "recording-name",
+    "recording-exclude-output",
+    "recording-exclude-mouse",
+    "recording-include-keys",
+    "create-recording-path",
+    "disable-copy",
+    "disable-paste",
+    
+    NULL
+};
+
+enum SPICE_ARGS_IDX {
+    
+    /**
+     * The hostname of the Spice server to connect to.
+     */
+    IDX_HOSTNAME,
+
+    /**
+     * The port of the Spice server to connect to.
+     */
+    IDX_PORT,
+    
+    /**
+     * Whether or not the connection to the Spice server should be made via
+     * TLS.
+     */
+    IDX_TLS,
+    
+    /**
+     * The verification mode that should be used to validate TLS connections
+     * to the Spice server.
+     */
+    IDX_TLS_VERIFY,
+    
+    /**
+     * One or more Base64-encoded certificates that will be used for TLS
+     * verification.
+     */
+    IDX_CA,
+    
+    /**
+     * A path to a file containing one or more certificates that will be used
+     * when validating TLS connections.
+     */
+    IDX_CA_FILE,
+    
+    /**
+     * The public key of the host for TLS verification.
+     */
+    IDX_PUBKEY,
+    
+    /**
+     * The proxy server to connect through when connecting to the Spice server.
+     */
+    IDX_PROXY,
+
+    /**
+     * "true" if this connection should be read-only (user input should be
+     * dropped), "false" or blank otherwise.
+     */
+    IDX_READ_ONLY,
+
+    /**
+     * Space-separated list of encodings to use within the Spice session. If not
+     * specified, this will be:
+     *
+     *     "zrle ultra copyrect hextile zlib corre rre raw".
+     */
+    IDX_ENCODINGS,
+
+    /**
+     * The username to send to the Spice server if authentication is requested.
+     */
+    IDX_USERNAME,
+    
+    /**
+     * The password to send to the Spice server if authentication is requested.
+     */
+    IDX_PASSWORD,
+
+    /**
+     * "true" if the red and blue components of each color should be swapped,
+     * "false" or blank otherwise. This is mainly used for Spice servers that do
+     * not properly handle colors.
+     */
+    IDX_SWAP_RED_BLUE,
+
+    /**
+     * The color depth to request, in bits.
+     */
+    IDX_COLOR_DEPTH,
+
+    /**
+     * "remote" if the cursor should be rendered on the server instead of the
+     * client. All other values will default to local rendering.
+     */
+    IDX_CURSOR,
+
+    /**
+     * The number of connection attempts to make before giving up. By default,
+     * this will be 0.
+     */
+    IDX_AUTORETRY,
+
+    /**
+     * The encoding to use for clipboard data sent to the Spice server if we are
+     * going to be deviating from the standard (which mandates ISO 8829-1).
+     * Valid values are "ISO8829-1" (the only legal value with respect to the
+     * Spice standard), "UTF-8", "UTF-16", and "CP2252".
+     */
+    IDX_CLIPBOARD_ENCODING,
+
+    /**
+     * "true" if audio should be enabled, "false" or blank otherwise.
+     */
+    IDX_ENABLE_AUDIO,
+
+    /**
+     * "true" if audio input should be enabled, "false" or blank otherwise.
+     */
+    IDX_ENABLE_AUDIO_INPUT,
+
+    /**
+     * "true" if file transfer should be enabled, "false" or blank otherwise.
+     */
+    IDX_FILE_TRANSFER,
+
+    /**
+     * The absolute path to the directory that should be shared from the system
+     * running guacd to the spice server.
+     */
+    IDX_FILE_DIRECTORY,
+    
+    /**
+     * Whether or not the shared directory should be read-only to the Spice
+     * server.
+     */
+    IDX_FILE_TRANSFER_RO,
+
+    /**
+     * Whether or not Guacamole should attempt to create the shared folder
+     * if it does not already exist.
+     */
+    IDX_FILE_TRANSFER_CREATE_FOLDER,
+
+    /**
+     * "true" if downloads from the remote server to Guacamole client should
+     * be disabled, otherwise false or blank.
+     */
+    IDX_DISABLE_DOWNLOAD,
+
+    /**
+     * "true" if uploads from Guacamole Client to the shared folder should be
+     * disabled, otherwise false or blank.
+     */
+    IDX_DISABLE_UPLOAD,
+
+    /**
+     * The name of the keymap chosen as the layout of the server. Legal names
+     * are defined within the *.keymap files in the "keymaps" directory of the
+     * source for Guacamole's Spice support.
+     */
+    IDX_SERVER_LAYOUT,
+
+#ifdef ENABLE_COMMON_SSH
+    /**
+     * "true" if SFTP should be enabled for the Spice connection, "false" or
+     * blank otherwise.
+     */
+    IDX_ENABLE_SFTP,
+
+    /**
+     * The hostname of the SSH server to connect to for SFTP. If blank, the
+     * hostname of the Spice server will be used.
+     */
+    IDX_SFTP_HOSTNAME,
+
+    /**
+     * The public SSH host key to identify the SFTP server.
+     */
+    IDX_SFTP_HOST_KEY,
+
+    /**
+     * The port of the SSH server to connect to for SFTP. If blank, the default
+     * SSH port of "22" will be used.
+     */
+    IDX_SFTP_PORT,
+
+    /**
+     * The username to provide when authenticating with the SSH server for
+     * SFTP.
+     */
+    IDX_SFTP_USERNAME,
+
+    /**
+     * The password to provide when authenticating with the SSH server for
+     * SFTP (if not using a private key).
+     */
+    IDX_SFTP_PASSWORD,
+
+    /**
+     * The base64-encoded private key to use when authenticating with the SSH
+     * server for SFTP (if not using a password).
+     */
+    IDX_SFTP_PRIVATE_KEY,
+
+    /**
+     * The passphrase to use to decrypt the provided base64-encoded private
+     * key.
+     */
+    IDX_SFTP_PASSPHRASE,
+
+    /**
+     * The default location for file uploads within the SSH server. This will
+     * apply only to uploads which do not use the filesystem guac_object (where
+     * the destination directory is otherwise ambiguous).
+     */
+    IDX_SFTP_DIRECTORY,
+
+    /**
+     * The path of the directory within the SSH server to expose as a
+     * filesystem guac_object. If omitted, "/" will be used by default.
+     */
+    IDX_SFTP_ROOT_DIRECTORY,
+
+    /**
+     * The interval at which SSH keepalive messages are sent to the server for
+     * SFTP connections.  The default is 0 (disabling keepalives), and a value
+     * of 1 is automatically incremented to 2 by libssh2 to avoid busy loop corner
+     * cases.
+     */
+    IDX_SFTP_SERVER_ALIVE_INTERVAL,
+    
+    /**
+     * If set to "true", file downloads over SFTP will be blocked.  If set to
+     * "false" or not set, file downloads will be allowed.
+     */
+    IDX_SFTP_DISABLE_DOWNLOAD,
+    
+    /**
+     * If set to "true", file uploads over SFTP will be blocked.  If set to
+     * "false" or not set, file uploads will be allowed.
+     */
+    IDX_SFTP_DISABLE_UPLOAD,
+#endif
+
+    /**
+     * The full absolute path to the directory in which screen recordings
+     * should be written.
+     */
+    IDX_RECORDING_PATH,
+
+    /**
+     * The name that should be given to screen recordings which are written in
+     * the given path.
+     */
+    IDX_RECORDING_NAME,
+
+    /**
+     * Whether output which is broadcast to each connected client (graphics,
+     * streams, etc.) should NOT be included in the session recording. Output
+     * is included by default, as it is necessary for any recording which must
+     * later be viewable as video.
+     */
+    IDX_RECORDING_EXCLUDE_OUTPUT,
+
+    /**
+     * Whether changes to mouse state, such as position and buttons pressed or
+     * released, should NOT be included in the session recording. Mouse state
+     * is included by default, as it is necessary for the mouse cursor to be
+     * rendered in any resulting video.
+     */
+    IDX_RECORDING_EXCLUDE_MOUSE,
+
+    /**
+     * Whether keys pressed and released should be included in the session
+     * recording. Key events are NOT included by default within the recording,
+     * as doing so has privacy and security implications.  Including key events
+     * may be necessary in certain auditing contexts, but should only be done
+     * with caution. Key events can easily contain sensitive information, such
+     * as passwords, credit card numbers, etc.
+     */
+    IDX_RECORDING_INCLUDE_KEYS,
+
+    /**
+     * Whether the specified screen recording path should automatically be
+     * created if it does not yet exist.
+     */
+    IDX_CREATE_RECORDING_PATH,
+
+    /**
+     * Whether outbound clipboard access should be blocked. If set to "true",
+     * it will not be possible to copy data from the remote desktop to the
+     * client using the clipboard. By default, clipboard access is not blocked.
+     */
+    IDX_DISABLE_COPY,
+
+    /**
+     * Whether inbound clipboard access should be blocked. If set to "true", it
+     * will not be possible to paste data from the client to the remote desktop
+     * using the clipboard. By default, clipboard access is not blocked.
+     */
+    IDX_DISABLE_PASTE,
+
+    SPICE_ARGS_COUNT
+};
+
+guac_spice_settings* guac_spice_parse_args(guac_user* user,
+        int argc, const char** argv) {
+
+    /* Validate arg count */
+    if (argc != SPICE_ARGS_COUNT) {
+        guac_user_log(user, GUAC_LOG_WARNING, "Incorrect number of connection "
+                "parameters provided: expected %i, got %i.",
+                SPICE_ARGS_COUNT, argc);
+        return NULL;
+    }
+
+    guac_spice_settings* settings = calloc(1, sizeof(guac_spice_settings));
+
+    settings->hostname =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_HOSTNAME, SPICE_DEFAULT_HOST);
+
+    settings->port =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_PORT, SPICE_DEFAULT_PORT);
+    
+    settings->tls =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_TLS, false);
+    
+    char* verify_mode = guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_TLS_VERIFY, NULL);
+    
+    if (verify_mode != NULL) {
+        if (strcmp(verify_mode, GUAC_SPICE_PARAMETER_TLS_VERIFY_PUBKEY) == 0)
+            settings->tls_verify = SPICE_SESSION_VERIFY_PUBKEY;
+        else if (strcmp(verify_mode, GUAC_SPICE_PARAMETER_TLS_VERIFY_SUBJECT) == 0)
+            settings->tls_verify = SPICE_SESSION_VERIFY_SUBJECT;    
+    }
+    
+    else {
+        settings->tls_verify = SPICE_SESSION_VERIFY_HOSTNAME;
+    }
+    
+    free(verify_mode);
+    
+    settings->ca =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_CA, NULL);
+    
+    settings->ca_file =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_CA_FILE, NULL);
+    
+    settings->pubkey =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_PUBKEY, NULL);
+    
+    settings->proxy =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_PROXY, NULL);
+
+    settings->username =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_USERNAME, NULL);
+    
+    settings->password =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_PASSWORD, NULL);
+
+    /* Read-only mode */
+    settings->read_only =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_READ_ONLY, false);
+
+    /* Parse color depth */
+    settings->color_depth =
+        guac_user_parse_args_int(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_COLOR_DEPTH, 0);
+
+    /* Set encodings if specified */
+    settings->encodings =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_ENCODINGS,
+                SPICE_DEFAULT_ENCODINGS);
+
+    /* Parse autoretry */
+    settings->retries =
+        guac_user_parse_args_int(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_AUTORETRY, 0);
+
+    /* Audio enable/disable */
+    settings->audio_enabled =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_ENABLE_AUDIO, false);
+
+    /* Audio input enable/disable */
+    settings->audio_input_enabled =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_ENABLE_AUDIO_INPUT, false);
+
+    /* File transfer enable/disable */
+    settings->file_transfer =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_FILE_TRANSFER, false);
+    
+    /* The directory on the guacd server to share */
+    settings->file_directory =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_FILE_DIRECTORY, NULL);
+    
+    /* Whether or not the share should be read-only. */
+    settings->file_transfer_ro =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_FILE_TRANSFER_RO, false);
+
+    /* Whether or not Guacamole should attempt to create a non-existent folder. */
+    settings->file_transfer_create_folder =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_FILE_TRANSFER_CREATE_FOLDER, false);
+
+    /* Whether or not downloads (Server -> Client) should be disabled. */
+    settings->disable_download =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_DISABLE_DOWNLOAD, false);
+
+    /* Whether or not uploads (Client -> Server) should be disabled. */
+    settings->disable_upload =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_DISABLE_UPLOAD, false);
+
+    /* Pick keymap based on argument */
+    settings->server_layout = NULL;
+    if (argv[IDX_SERVER_LAYOUT][0] != '\0')
+        settings->server_layout =
+            guac_spice_keymap_find(argv[IDX_SERVER_LAYOUT]);
+
+    /* If no keymap requested, use default */
+    if (settings->server_layout == NULL)
+        settings->server_layout = guac_spice_keymap_find(GUAC_SPICE_DEFAULT_KEYMAP);
+
+    /* Set clipboard encoding if specified */
+    settings->clipboard_encoding =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_CLIPBOARD_ENCODING, NULL);
+
+#ifdef ENABLE_COMMON_SSH
+    /* SFTP enable/disable */
+    settings->enable_sftp =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_ENABLE_SFTP, false);
+
+    /* Hostname for SFTP connection */
+    settings->sftp_hostname =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_HOSTNAME, settings->hostname);
+
+    /* The public SSH host key. */
+    settings->sftp_host_key =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_HOST_KEY, NULL);
+
+    /* Port for SFTP connection */
+    settings->sftp_port =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_PORT, SPICE_DEFAULT_SFTP_PORT);
+
+    /* Username for SSH/SFTP authentication */
+    settings->sftp_username =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_USERNAME, "");
+
+    /* Password for SFTP (if not using private key) */
+    settings->sftp_password =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_PASSWORD, "");
+
+    /* Private key for SFTP (if not using password) */
+    settings->sftp_private_key =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_PRIVATE_KEY, NULL);
+
+    /* Passphrase for decrypting the SFTP private key (if applicable */
+    settings->sftp_passphrase =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_PASSPHRASE, "");
+
+    /* Default upload directory */
+    settings->sftp_directory =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_DIRECTORY, NULL);
+
+    /* SFTP root directory */
+    settings->sftp_root_directory =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_ROOT_DIRECTORY, SPICE_DEFAULT_SFTP_ROOT);
+
+    /* Default keepalive value */
+    settings->sftp_server_alive_interval =
+        guac_user_parse_args_int(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_SERVER_ALIVE_INTERVAL, 0);
+    
+    settings->sftp_disable_download =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_DISABLE_DOWNLOAD, false);
+    
+    settings->sftp_disable_upload =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_SFTP_DISABLE_UPLOAD, false);
+#endif
+
+    /* Read recording path */
+    settings->recording_path =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_RECORDING_PATH, NULL);
+
+    /* Read recording name */
+    settings->recording_name =
+        guac_user_parse_args_string(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_RECORDING_NAME, GUAC_SPICE_DEFAULT_RECORDING_NAME);
+
+    /* Parse output exclusion flag */
+    settings->recording_exclude_output =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_RECORDING_EXCLUDE_OUTPUT, false);
+
+    /* Parse mouse exclusion flag */
+    settings->recording_exclude_mouse =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_RECORDING_EXCLUDE_MOUSE, false);
+
+    /* Parse key event inclusion flag */
+    settings->recording_include_keys =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_RECORDING_INCLUDE_KEYS, false);
+
+    /* Parse path creation flag */
+    settings->create_recording_path =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_CREATE_RECORDING_PATH, false);
+
+    /* Parse clipboard copy disable flag */
+    settings->disable_copy =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_DISABLE_COPY, false);
+
+    /* Parse clipboard paste disable flag */
+    settings->disable_paste =
+        guac_user_parse_args_boolean(user, GUAC_SPICE_CLIENT_ARGS, argv,
+                IDX_DISABLE_PASTE, false);
+
+    return settings;
+
+}
+
+void guac_spice_settings_free(guac_spice_settings* settings) {
+
+    /* Free settings strings */
+    free(settings->clipboard_encoding);
+    free(settings->encodings);
+    free(settings->hostname);
+    free(settings->password);
+    free(settings->recording_name);
+    free(settings->recording_path);
+    free(settings->username);
+
+#ifdef ENABLE_SPICE_REPEATER
+    /* Free Spice repeater settings */
+    free(settings->dest_host);
+#endif
+
+#ifdef ENABLE_COMMON_SSH
+    /* Free SFTP settings */
+    free(settings->sftp_directory);
+    free(settings->sftp_root_directory);
+    free(settings->sftp_host_key);
+    free(settings->sftp_hostname);
+    free(settings->sftp_passphrase);
+    free(settings->sftp_password);
+    free(settings->sftp_port);
+    free(settings->sftp_private_key);
+    free(settings->sftp_username);
+#endif
+
+    /* Free settings structure */
+    free(settings);
+
+}
+

src/protocols/spice/settings.h

@@ -0,0 +1,345 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+
+#ifndef GUAC_SPICE_SETTINGS_H
+#define GUAC_SPICE_SETTINGS_H
+
+#include "config.h"
+#include "keymap.h"
+
+#include <spice-client-glib-2.0/spice-client.h>
+
+#include <stdbool.h>
+
+/**
+ * The filename to use for the screen recording, if not specified.
+ */
+#define GUAC_SPICE_DEFAULT_RECORDING_NAME "recording"
+
+/**
+ * Spice-specific client data.
+ */
+typedef struct guac_spice_settings {
+
+    /**
+     * The hostname of the Spice server (or repeater) to connect to.
+     */
+    char* hostname;
+
+    /**
+     * The port of the Spice server (or repeater) to connect to.
+     */
+    char* port;
+    
+    /**
+     * Whether or not TLS should be used to connect to the SPICE server.
+     */
+    bool tls;
+    
+    /**
+     * The type of TLS validation that should be done for encrypted connections
+     * to Spice servers.
+     */
+    SpiceSessionVerify tls_verify;
+    
+    /**
+     * One or more Base64-encoded certificates to use to validate TLS
+     * connections to the Spice server.
+     */
+    char* ca;
+    
+    /**
+     * A path to a file containing one more certificates that will be used to
+     * validate TLS connections.
+     */
+    char* ca_file;
+    
+    /**
+     * The public key of the Spice server for TLS verification.
+     */
+    char* pubkey;
+    
+    /**
+     * Spice supports connecting to remote servers via a proxy server. You can
+     * specify the proxy server to use in this property.
+     */
+    char* proxy;
+    
+    /**
+     * The username given in the arguments.
+     */
+    char* username;
+    
+    /**
+     * The password given in the arguments.
+     */
+    char* password;
+
+    /**
+     * Space-separated list of encodings to use within the Spice session.
+     */
+    char* encodings;
+
+    /**
+     * The color depth to request, in bits.
+     */
+    int color_depth;
+
+    /**
+     * Whether this connection is read-only, and user input should be dropped.
+     */
+    bool read_only;
+   
+    /**
+     * Whether audio is enabled.
+     */
+    bool audio_enabled;
+
+    /**
+     * Whether audio input is enabled.
+     */
+    bool audio_input_enabled;
+    
+    /**
+     * If file transfer capability should be enabled.
+     */
+    bool file_transfer;
+    
+    /**
+     * The directory on the server where guacd is running that should be
+     * shared.
+     */
+    char* file_directory;
+    
+    /**
+     * If file transfer capability should be limited to read-only.
+     */
+    bool file_transfer_ro;
+
+    /**
+     * If the folder does not exist and this setting is set to True, guacd
+     * will attempt to create the folder.
+     */
+    bool file_transfer_create_folder;
+
+    /**
+     * True if downloads (Remote Server -> Guacamole Client) should be
+     * disabled.
+     */
+    bool disable_download;
+
+    /**
+     * True if uploads (Guacamole Client -> Remote Server) should be disabled.
+     */
+    bool disable_upload;
+
+    /**
+     * The keymap chosen as the layout of the server.
+     */
+    const guac_spice_keymap* server_layout;
+
+    /**
+     * The number of connection attempts to make before giving up.
+     */
+    int retries;
+
+    /**
+     * The encoding to use for clipboard data sent to the Spice server, or NULL
+     * to use the encoding required by the Spice standard.
+     */
+    char* clipboard_encoding;
+
+    /**
+     * Whether outbound clipboard access should be blocked. If set, it will not
+     * be possible to copy data from the remote desktop to the client using the
+     * clipboard.
+     */
+    bool disable_copy;
+
+    /**
+     * Whether inbound clipboard access should be blocked. If set, it will not
+     * be possible to paste data from the client to the remote desktop using
+     * the clipboard.
+     */
+    bool disable_paste;
+
+#ifdef ENABLE_COMMON_SSH
+    /**
+     * Whether SFTP should be enabled for the Spice connection.
+     */
+    bool enable_sftp;
+
+    /**
+     * The hostname of the SSH server to connect to for SFTP.
+     */
+    char* sftp_hostname;
+
+    /**
+     * The public SSH host key.
+     */
+    char* sftp_host_key;
+
+    /**
+     * The port of the SSH server to connect to for SFTP.
+     */
+    char* sftp_port;
+
+    /**
+     * The username to provide when authenticating with the SSH server for
+     * SFTP.
+     */
+    char* sftp_username;
+
+    /**
+     * The password to provide when authenticating with the SSH server for
+     * SFTP (if not using a private key).
+     */
+    char* sftp_password;
+
+    /**
+     * The base64-encoded private key to use when authenticating with the SSH
+     * server for SFTP (if not using a password).
+     */
+    char* sftp_private_key;
+
+    /**
+     * The passphrase to use to decrypt the provided base64-encoded private
+     * key.
+     */
+    char* sftp_passphrase;
+
+    /**
+     * The default location for file uploads within the SSH server. This will
+     * apply only to uploads which do not use the filesystem guac_object (where
+     * the destination directory is otherwise ambiguous).
+     */
+    char* sftp_directory;
+
+    /**
+     * The path of the directory within the SSH server to expose as a
+     * filesystem guac_object.
+     */
+    char* sftp_root_directory;
+
+    /**
+     * The interval at which SSH keepalive messages are sent to the server for
+     * SFTP connections.  The default is 0 (disabling keepalives), and a value
+     * of 1 is automatically increased to 2 by libssh2 to avoid busy loop corner
+     * cases.
+     */
+    int sftp_server_alive_interval;
+    
+    /**
+     * Whether file downloads over SFTP should be blocked.  If set to "true",
+     * the local client will not be able to download files from the SFTP server.
+     * If set to "false" or not set, file downloads will be allowed.
+     */
+    bool sftp_disable_download;
+    
+    /**
+     * Whether file uploads over SFTP should be blocked.  If set to "true", the
+     * local client will not be able to upload files to the SFTP server.  If set
+     * to "false" or not set, file uploads will be allowed.
+     */
+    bool sftp_disable_upload;
+#endif
+
+    /**
+     * The path in which the screen recording should be saved, if enabled. If
+     * no screen recording should be saved, this will be NULL.
+     */
+    char* recording_path;
+
+    /**
+     * The filename to use for the screen recording, if enabled.
+     */
+    char* recording_name;
+
+    /**
+     * Whether the screen recording path should be automatically created if it
+     * does not already exist.
+     */
+    bool create_recording_path;
+
+    /**
+     * Whether output which is broadcast to each connected client (graphics,
+     * streams, etc.) should NOT be included in the session recording. Output
+     * is included by default, as it is necessary for any recording which must
+     * later be viewable as video.
+     */
+    bool recording_exclude_output;
+
+    /**
+     * Whether changes to mouse state, such as position and buttons pressed or
+     * released, should NOT be included in the session recording. Mouse state
+     * is included by default, as it is necessary for the mouse cursor to be
+     * rendered in any resulting video.
+     */
+    bool recording_exclude_mouse;
+
+    /**
+     * Whether keys pressed and released should be included in the session
+     * recording. Key events are NOT included by default within the recording,
+     * as doing so has privacy and security implications.  Including key events
+     * may be necessary in certain auditing contexts, but should only be done
+     * with caution. Key events can easily contain sensitive information, such
+     * as passwords, credit card numbers, etc.
+     */
+    bool recording_include_keys;
+
+} guac_spice_settings;
+
+/**
+ * Parses all given args, storing them in a newly-allocated settings object. If
+ * the args fail to parse, NULL is returned.
+ *
+ * @param user
+ *     The user who submitted the given arguments while joining the
+ *     connection.
+ *
+ * @param argc
+ *     The number of arguments within the argv array.
+ *
+ * @param argv
+ *     The values of all arguments provided by the user.
+ *
+ * @return
+ *     A newly-allocated settings object which must be freed with
+ *     guac_spice_settings_free() when no longer needed. If the arguments fail
+ *     to parse, NULL is returned.
+ */
+guac_spice_settings* guac_spice_parse_args(guac_user* user,
+        int argc, const char** argv);
+
+/**
+ * Frees the given guac_spice_settings object, having been previously allocated
+ * via guac_spice_parse_args().
+ *
+ * @param settings
+ *     The settings object to free.
+ */
+void guac_spice_settings_free(guac_spice_settings* settings);
+
+/**
+ * NULL-terminated array of accepted client args.
+ */
+extern const char* GUAC_SPICE_CLIENT_ARGS[];
+
+#endif /* SPICE_SETTINGS_H */

src/protocols/spice/sftp.c

@@ -0,0 +1,42 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "common-ssh/sftp.h"
+#include "sftp.h"
+#include "spice.h"
+
+#include <guacamole/client.h>
+#include <guacamole/stream.h>
+#include <guacamole/user.h>
+
+int guac_spice_sftp_file_handler(guac_user* user, guac_stream* stream,
+        char* mimetype, char* filename) {
+
+    guac_client* client = user->client;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_common_ssh_sftp_filesystem* filesystem = spice_client->sftp_filesystem;
+
+    /* Handle file upload */
+    return guac_common_ssh_sftp_handle_file_stream(filesystem, user, stream,
+            mimetype, filename);
+
+}
+

src/protocols/spice/sftp.h

@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_SFTP_H
+#define GUAC_SPICE_SFTP_H
+
+#include "config.h"
+
+#include <guacamole/user.h>
+
+/**
+ * Handles an incoming stream from a Guacamole "file" instruction, saving the
+ * contents of that stream to the file having the given name.
+ */
+guac_user_file_handler guac_spice_sftp_file_handler;
+
+#endif /* SPICE_SFTP_H */
+

src/protocols/spice/spice-constants.h

@@ -0,0 +1,445 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef SPICE_CONSTANTS_H
+#define SPICE_CONSTANTS_H
+
+/**
+ * The key used to store and retrieve Guacamole-related data from within the
+ * Spice client structure.
+ */
+#define GUAC_SPICE_CLIENT_KEY "GUAC_SPICE"
+
+/**
+ * The default identifier of the pimary/main display.
+ */
+#define GUAC_SPICE_DEFAULT_DISPLAY_ID 0
+
+/**
+ * Error code returned when no more file IDs can be allocated.
+ */
+#define GUAC_SPICE_FOLDER_ENFILE -1
+
+/**
+ * Error code returned when no such file exists.
+ */
+#define GUAC_SPICE_FOLDER_ENOENT -2
+
+/**
+ * Error code returned when the operation required a directory
+ * but the file was not a directory.
+ */
+#define GUAC_SPICE_FOLDER_ENOTDIR -3
+
+/**
+ * Error code returned when insufficient space exists to complete
+ * the operation.
+ */
+#define GUAC_SPICE_FOLDER_ENOSPC -4
+
+/**
+ * Error code returned when the operation requires a normal file but
+ * a directory was given.
+ */
+#define GUAC_SPICE_FOLDER_EISDIR -5
+
+/**
+ * Error code returned when permission is denied.
+ */
+#define GUAC_SPICE_FOLDER_EACCES -6
+
+/**
+ * Error code returned when the operation cannot be completed because the
+ * file already exists.
+ */
+#define GUAC_SPICE_FOLDER_EEXIST -7
+
+/**
+ * Error code returned when invalid parameters were given.
+ */
+#define GUAC_SPICE_FOLDER_EINVAL -8
+
+/**
+ * Error code returned when the operation is not implemented.
+ */
+#define GUAC_SPICE_FOLDER_ENOSYS -9
+
+/**
+ * Error code returned when the operation is not supported.
+ */
+#define GUAC_SPICE_FOLDER_ENOTSUP -10
+
+/**
+ * The maximum number of events that can be monitored at a given time for
+ * the Spice shared folder Download folder monitor.
+ */
+#define GUAC_SPICE_FOLDER_MAX_EVENTS 256
+
+/**
+ * The maximum length of a path in a shared folder.
+ */
+#define GUAC_SPICE_FOLDER_MAX_PATH 4096
+
+/**
+ * The maximum number of open files in a shared folder.
+ */
+#define GUAC_SPICE_FOLDER_MAX_FILES 128
+
+/**
+ * The maximum level of folder deptch in a shared folder.
+ */
+#define GUAC_SPICE_FOLDER_MAX_PATH_DEPTH 64
+
+/**
+ * The TLS verification value from Guacamole Client that indicates that hostname
+ * verification should be done.
+ */
+#define GUAC_SPICE_PARAMETER_TLS_VERIFY_HOSTNAME "hostname"
+
+/**
+ * The TLS verification value from Guacamole Client that indicates that public
+ * key verification should be performed.
+ */
+#define GUAC_SPICE_PARAMETER_TLS_VERIFY_PUBKEY "pubkey"
+
+/**
+ * The TLS verification value from Guacamole Client that indicates that subject
+ * verification should be performed.
+ */
+#define GUAC_SPICE_PARAMETER_TLS_VERIFY_SUBJECT "subject"
+
+/**
+ * The property within a Spice client channel that indicates if the SPICE
+ * agent is connected.
+ */
+#define SPICE_PROPERTY_AGENT_CONNECTED "agent-connected"
+
+/**
+ * The Spice client property that defines CA certificates used to validate
+ * the TLS connection to the Spice server.
+ */
+#define SPICE_PROPERTY_CA "ca"
+
+/**
+ * The Spice client property that defines a path on the server running guacd
+ * to the file containing the certificate authority certificates to use to
+ * validate the TLS connection to the Spice server.
+ */
+#define SPICE_PROPERTY_CA_FILE "ca-file"
+
+/**
+ * The property that the Spice client uses to set the image cache size. If
+ * undefined a default of 0 will be used.
+ */
+#define SPICE_PROPERTY_CACHE_SIZE "cache-size"
+
+/**
+ * The Spice client channel property that stores the identifier of the channel.
+ */
+#define SPICE_PROPERTY_CHANNEL_ID "channel-id"
+
+/**
+ * THe Spice client channel property that stores the type of the channel.
+ */
+#define SPICE_PROPERTY_CHANNEL_TYPE "channel-type"
+
+/**
+ * Spice library property that determines whether or not the sockets are provided
+ * by the client.
+ */
+#define SPICE_PROPERTY_CLIENT_SOCKETS "client-sockets"
+
+/**
+ * The property that tells the Spice client the color depth to use when
+ * allocating new displays.
+ */
+#define SPICE_PROPERTY_COLOR_DEPTH "color-depth"
+
+/**
+ * The property that tells the Spice client to enable audio playback and
+ * recording. The SPICE client default is TRUE.
+ */
+#define SPICE_PROPERTY_ENABLE_AUDIO "enable-audio"
+
+/**
+ * Property that enables or disables USB redirection.
+ */
+#define SPICE_PROPERTY_ENABLE_USBREDIR "enable-usbredir"
+
+/**
+ * The property that contains the hostname, IP address, or URL of the Spice
+ * server that the client should attempt to connect to.
+ */
+#define SPICE_PROPERTY_HOST "host"
+
+/**
+ * A read-only property exposed by the Spice client library indicating the
+ * current state of key modifiers - such as lock keys - on the server.
+ */
+#define SPICE_PROPERTY_KEY_MODIFIERS "key-modifiers"
+
+/**
+ * The property that indicates the minimum latency for audio playback.
+ */
+#define SPICE_PROPERTY_MIN_LATENCY "min-latency"
+
+/**
+ * The property used to toggle the playback and/or record
+ * mute status on the Spice server.
+ */
+#define SPICE_PROPERTY_MUTE "mute"
+
+/**
+ * The property used to get or set the number of audio playback and/or recording
+ * channels that will be available between the Spice server and client.
+ */
+#define SPICE_PROPERTY_NUM_CHANNELS "nchannels"
+
+/**
+ * The property used to tell the Spice client the password to send on to the
+ * SPICE server for authentication.
+ */
+#define SPICE_PROPERTY_PASSWORD "password"
+
+/**
+ * The property used to set the unencrypted communication port for communicating
+ * with the Spice server.
+ */
+#define SPICE_PROPERTY_PORT "port"
+
+/**
+ * The property that the Spice client uses to set the proxy server that is used
+ * to connect to the Spice server.
+ */
+#define SPICE_PROPERTY_PROXY "proxy"
+
+/**
+ * The property used by the Spice client to tell the server that the session
+ * should be read-only.
+ */
+#define SPICE_PROPERTY_READ_ONLY "read-only"
+
+/**
+ * The property that the Spice client uses to determine a local (to guacd)
+ * directory that will be shared with the Spice server.
+ */
+#define SPICE_PROPERTY_SHARED_DIR "shared-dir"
+
+/**
+ * The property that tells the Spice client that the shared directory should be
+ * read-only to the Spice server and should not allow writes.
+ */
+#define SPICE_PROPERTY_SHARED_DIR_RO "share-dir-ro"
+
+/**
+ * The property within the Spice client that is used to set the port used for
+ * secure, TLS-based communication with the Spice server.
+ */
+#define SPICE_PROPERTY_TLS_PORT "tls-port"
+
+/**
+ * The property that is used to set the username that the Spice client will use
+ * to authenticate with the server.
+ */
+#define SPICE_PROPERTY_USERNAME "username"
+
+/**
+ * The property that tells the Spiec client whether or not to verify the
+ * certificate presented by the Spice server in TLS communications.
+ */
+#define SPICE_PROPERTY_VERIFY "verify"
+
+/**
+ * The property used to get or set the playback and/or recording volume of audio
+ * on the Spice server to the remote client.
+ */
+#define SPICE_PROPERTY_VOLUME "volume"
+
+/**
+ * The signal sent by the Spice client when a new channel is created.
+ */
+#define SPICE_SIGNAL_CHANNEL_NEW "channel-new"
+
+/**
+ * The signal sent by the Spice client when a channel is destroyed.
+ */
+#define SPICE_SIGNAL_CHANNEL_DESTROY "channel-destroy"
+
+/**
+ * The signal sent by the Spice client when an event occurs on a channel.
+ */
+#define SPICE_SIGNAL_CHANNEL_EVENT "channel-event"
+
+/**
+ * A signal that indicates that the cursor should be hidden from the display
+ * area.
+ */
+#define SPICE_SIGNAL_CURSOR_HIDE "cursor-hide"
+
+/**
+ * A signal that indicates a change in position of the cursor in the display
+ * area.
+ */
+#define SPICE_SIGNAL_CURSOR_MOVE "cursor-move"
+
+/**
+ * A signal that indicates the cursor should be reset to its default context.
+ */
+#define SPICE_SIGNAL_CURSOR_RESET "cursor-reset"
+
+/**
+ * A signal sent to modify cursor aspect and position within the display area.
+ */
+#define SPICE_SIGNAL_CURSOR_SET "cursor-set"
+
+/**
+ * The signal sent by the Spice client when the client is disconnected from
+ * the server.
+ */
+#define SPICE_SIGNAL_DISCONNECTED "disconnected"
+
+/**
+ * The signal sent to indicate that a region of the display should be updated.
+ */
+#define SPICE_SIGNAL_DISPLAY_INVALIDATE "display-invalidate"
+
+/**
+ * The signal that indicates that a display is ready to be exposed to the client.
+ */
+#define SPICE_SIGNAL_DISPLAY_MARK "display-mark"
+
+/**
+ * The signal indicating when the primary display data/buffer is ready.
+ */
+#define SPICE_SIGNAL_DISPLAY_PRIMARY_CREATE "display-primary-create"
+
+/**
+ * The signal indicating when the primary display surface should be freed and
+ * not made available anymore.
+ */
+#define SPICE_SIGNAL_DISPLAY_PRIMARY_DESTROY "display-primary-destroy"
+
+/**
+ * The signal indicating that a rectangular region of he display is updated
+ * and should be redrawn.
+ */
+#define SPICE_SIGNAL_GL_DRAW "gl-draw"
+
+/**
+ * The signal sent to indicate that the keyboard modifiers - such as lock keys -
+ * have changed and should be updated.
+ */
+#define SPICE_SIGNAL_INPUTS_MODIFIERS "inputs-modifiers"
+
+/**
+ * The signal sent by the Spice client when the connected status or capabilities
+ * of a channel change.
+ */
+#define SPICE_SIGNAL_MAIN_AGENT_UPDATE "main-agent-update"
+
+/**
+ * Signal fired by the Spice client when clipboard selection data is available.
+ */
+#define SPICE_SIGNAL_MAIN_CLIPBOARD_SELECTION "main-clipboard-selection"
+
+/**
+ * A signal fired by the Spice client when clipboard selection data is available
+ * from the guest, and of what type.
+ */
+#define SPICE_SIGNAL_MAIN_CLIPBOARD_SELECTION_GRAB "main-clipboard-selection-grab"
+
+/**
+ * A signal fired by the Spice client when clipboard selection data is no longer
+ * available from the guest.
+ */
+#define SPICE_SIGNAL_MAIN_CLIPBOARD_SELECTION_RELEASE "main-clipboard-selection-release"
+
+/**
+ * A signal used to request clipboard data from the client.
+ */
+#define SPICE_SIGNAL_MAIN_CLIPBOARD_SELECTION_REQUEST "main-clipboard-selection-request"
+
+/**
+ * A signal used to indicate that the mouse mode has changed.
+ */
+#define SPICE_SIGNAL_MAIN_MOUSE_UPDATE "main-mouse-update"
+
+/**
+ * A signal sent by the Spice client when the server has indicated that live
+ * migration has started.
+ */
+#define SPICE_SIGNAL_MIGRATION_STARTED "migration-started"
+
+/**
+ * The signal sent by the Spice client when a MM time discontinuity is
+ * detected.
+ */
+#define SPICE_SIGNAL_MM_TIME_RESET "mm-time-reset"
+
+/**
+ * The signal fired by the Spice client when a new file transfer task has been
+ * initiated.
+ */
+#define SPICE_SIGNAL_NEW_FILE_TRANSFER "new-file-transfer"
+
+/**
+ * The signal fired when data is available to be played on the client, which
+ * contains a pointer to the data to be played.
+ */
+#define SPICE_SIGNAL_PLAYBACK_DATA "playback-data"
+
+/**
+ * A signal sent when the server is requesting the current audio playback delay.
+ */
+#define SPICE_SIGNAL_PLAYBACK_GET_DELAY "playback-get-delay"
+
+/**
+ * A signal sent when the server is notifying the client that audio playback
+ * should begin, which also contains characteristics of that audio data.
+ */
+#define SPICE_SIGNAL_PLAYBACK_START "playback-start"
+
+/**
+ * A signal sent when audio playback should cease.
+ */
+#define SPICE_SIGNAL_PLAYBACK_STOP "playback-stop"
+
+/**
+ * A signal indicating that the Spice server would like to capture audio data
+ * from the client, along with the required format of that data.
+ */
+#define SPICE_SIGNAL_RECORD_START "record-start"
+
+/**
+ * A signal indicating that audio capture should cease.
+ */
+#define SPICE_SIGNAL_RECORD_STOP "record-stop"
+
+/**
+ * A signal indicating that a share folder is available.
+ */
+#define SPICE_SIGNAL_SHARE_FOLDER "notify::share-folder"
+
+/**
+ * The signal indicating that the Spice server has gone to streaming mode.
+ */
+#define SPICE_SIGNAL_STREAMING_MODE "streaming-mode"
+
+#endif /* SPICE_CONSTANTS_H */
+

src/protocols/spice/spice-defaults.h

@@ -0,0 +1,49 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef SPICE_DEFAULTS_H
+#define SPICE_DEFAULTS_H
+
+/**
+ * The default hostname to connect to if none is specified.
+ */
+#define SPICE_DEFAULT_HOST "localhost"
+
+/**
+ * The default Spice port number to connect to if none is specified.
+ */
+#define SPICE_DEFAULT_PORT "5900"
+
+/**
+ * The default encodings to use for the Spice clipboard.
+ */
+#define SPICE_DEFAULT_ENCODINGS "zrle ultra copyrect hextile zlib corre rre raw"
+
+/**
+ * The default SFTP port to connect to if SFTP is enabled.
+ */
+#define SPICE_DEFAULT_SFTP_PORT "22"
+
+/**
+ * The default root directory to limit SFTP access to.
+ */
+#define SPICE_DEFAULT_SFTP_ROOT "/"
+
+#endif /* SPICE_DEFAULTS_H */
+

src/protocols/spice/spice.c

@@ -0,0 +1,189 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "auth.h"
+#include "client.h"
+#include "common/cursor.h"
+#include "common/display.h"
+#include "channels/audio.h"
+#include "channels/cursor.h"
+#include "channels/display.h"
+#include "channels/file.h"
+#include "log.h"
+#include "settings.h"
+#include "spice.h"
+#include "spice-constants.h"
+
+#ifdef ENABLE_COMMON_SSH
+#include "common-ssh/sftp.h"
+#include "common-ssh/ssh.h"
+#include "sftp.h"
+#endif
+
+#include <glib/gmain.h>
+#include <guacamole/client.h>
+#include <guacamole/protocol.h>
+#include <guacamole/socket.h>
+#include <guacamole/timestamp.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+SpiceSession* guac_spice_get_session(guac_client* client) {
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Initializing new SPICE session.");
+    
+    /* Set up the Spice session and Guacamole client. */
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_spice_settings* spice_settings = spice_client->settings;
+    
+    /* Create a new Spice client. */
+    SpiceSession* spice_session = spice_session_new();
+    
+    /* Register a callback for handling new channel events. */
+    g_signal_connect(spice_session, SPICE_SIGNAL_CHANNEL_NEW,
+            G_CALLBACK(guac_spice_client_channel_handler), client);
+    
+    /* Set hostname and port */
+    g_object_set(spice_session, SPICE_PROPERTY_HOST, spice_settings->hostname, NULL);
+    guac_client_log(client, GUAC_LOG_DEBUG, "Connecting to host %s",
+        spice_settings->hostname);
+    if (spice_settings->tls) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Using TLS mode on port %s",
+            spice_settings->port);
+        g_object_set(spice_session,
+                SPICE_PROPERTY_TLS_PORT, spice_settings->port,
+                SPICE_PROPERTY_VERIFY, spice_settings->tls_verify,
+                NULL);
+        if (spice_settings->ca != NULL)
+            g_object_set(spice_session, SPICE_PROPERTY_CA, spice_settings->ca, NULL);
+        if (spice_settings->ca_file != NULL)
+            g_object_set(spice_session, SPICE_PROPERTY_CA_FILE, spice_settings->ca_file, NULL);
+    }
+    else {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Using plaintext mode on port %s",
+            spice_settings->port);
+        g_object_set(spice_session,
+                SPICE_PROPERTY_PORT, spice_settings->port, NULL);
+    }
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Setting up keyboard layout: %s",
+        spice_settings->server_layout);
+
+    /* Load keymap into client */
+    spice_client->keyboard = guac_spice_keyboard_alloc(client,
+            spice_settings->server_layout);
+
+    /* If file transfer is enabled, set up the required properties. */
+    if (spice_settings->file_transfer) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "File transfer enabled, configuring Spice client.");
+        g_object_set(spice_session, SPICE_PROPERTY_SHARED_DIR, spice_settings->file_directory, NULL);
+        g_object_set(spice_session, SPICE_PROPERTY_SHARED_DIR_RO, spice_settings->file_transfer_ro, NULL);
+        spice_client->shared_folder = guac_spice_folder_alloc(client,
+                spice_settings->file_directory,
+                spice_settings->file_transfer_create_folder,
+                spice_settings->disable_download,
+                spice_settings->disable_upload
+        );
+        guac_client_for_owner(client, guac_spice_folder_expose,
+                spice_client->shared_folder);
+    }
+
+    else
+        g_object_set(spice_session, SPICE_PROPERTY_SHARED_DIR, NULL, NULL);
+    
+    /* Return the configured session. */
+    return spice_session;
+
+}
+
+void* guac_spice_client_thread(void* data) {
+    
+    guac_client* client = (guac_client*) data;
+    guac_spice_client* spice_client = (guac_spice_client*) client->data;
+    guac_spice_settings* settings = spice_client->settings;
+    spice_client->spice_mainloop = g_main_loop_new(NULL, false);
+
+    /* Attempt connection */
+    guac_client_log(client, GUAC_LOG_DEBUG, "Attempting initial connection to SPICE server.");
+    spice_client->spice_session = guac_spice_get_session(client);
+    int retries_remaining = settings->retries;
+
+    /* If unsuccessful, retry as many times as specified */
+    while (spice_client->spice_session == NULL && retries_remaining > 0) {
+
+        guac_client_log(client, GUAC_LOG_INFO,
+                "Connect failed. Waiting %ims before retrying...",
+                GUAC_SPICE_CONNECT_INTERVAL);
+
+        /* Wait for given interval then retry */
+        guac_timestamp_msleep(GUAC_SPICE_CONNECT_INTERVAL);
+        spice_client->spice_session = guac_spice_get_session(client);
+        retries_remaining--;
+
+    }
+
+    /* If the final connect attempt fails, return error */
+    if (spice_client->spice_session == NULL) {
+        guac_client_abort(client, GUAC_PROTOCOL_STATUS_UPSTREAM_NOT_FOUND,
+                "Unable to connect to SPICE server.");
+        return NULL;
+    }
+
+    guac_socket_flush(client->socket);
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Connection configuration finished, calling spice_session_connect.");
+    
+    if(!spice_session_connect(spice_client->spice_session))
+        return NULL;
+    
+    guac_client_log(client, GUAC_LOG_DEBUG, "Session connected, entering main loop.");
+
+    /* Handle messages from SPICE server while client is running */
+    while (client->state == GUAC_CLIENT_RUNNING) {
+
+        /* Run the main loop. */
+        g_main_loop_run(spice_client->spice_mainloop);
+        guac_client_log(client, GUAC_LOG_DEBUG, "Finished main loop.");
+
+        /* Wait for an error on the main channel. */
+        if (spice_client->main_channel != NULL
+                && spice_channel_get_error(SPICE_CHANNEL(spice_client->main_channel)) != NULL)
+            break;
+    }
+
+    guac_client_log(client, GUAC_LOG_DEBUG, "Exited main loop, cleaning up.");
+    
+    /* Kill client and finish connection */
+    if (spice_client->spice_session != NULL) {
+        guac_client_log(client, GUAC_LOG_DEBUG, "Cleaning up SPICE session.");
+        spice_session_disconnect(spice_client->spice_session);
+        g_object_unref(spice_client->spice_session);
+        spice_client->spice_session = NULL;
+    }
+
+    guac_client_stop(client);
+    guac_client_log(client, GUAC_LOG_INFO, "Internal SPICE client disconnected");
+    return NULL;
+
+}

src/protocols/spice/spice.h

@@ -0,0 +1,206 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef GUAC_SPICE_H
+#define GUAC_SPICE_H
+
+#include "config.h"
+
+#include "channels/file.h"
+#include "common/clipboard.h"
+#include "common/display.h"
+#include "common/iconv.h"
+#include "common/surface.h"
+#include "keyboard.h"
+#include "settings.h"
+
+#include <guacamole/audio.h>
+#include <guacamole/client.h>
+#include <guacamole/layer.h>
+#include <guacamole/recording.h>
+#include <glib.h>
+#include <spice-client-glib-2.0/spice-client.h>
+
+#ifdef ENABLE_COMMON_SSH
+#include "common-ssh/sftp.h"
+#include "common-ssh/ssh.h"
+#include "common-ssh/user.h"
+#endif
+
+#include <pthread.h>
+
+/**
+ * Spice-specific client data.
+ */
+typedef struct guac_spice_client {
+
+    /**
+     * The Spice client thread.
+     */
+    pthread_t client_thread;
+
+    /**
+     * The underlying Spice session.
+     */
+    SpiceSession* spice_session;
+    
+    /**
+     * The main Spice channel.
+     */
+    SpiceMainChannel* main_channel;
+    
+    /**
+     * The Spice audio playback channel.
+     */
+    SpicePlaybackChannel* playback_channel;
+    
+    /**
+     * The Spice audio recording/input channel.
+     */
+    SpiceRecordChannel* record_channel;
+    
+    /**
+     * The Spice channel that handles the cursor display and events.
+     */
+    SpiceCursorChannel* cursor_channel;
+    
+    /**
+     * The Spice channel that handles mouse and keyboard inputs.
+     */
+    SpiceInputsChannel* inputs_channel;
+
+    /**
+     * Client settings, parsed from args.
+     */
+    guac_spice_settings* settings;
+
+    /**
+     * The current display state.
+     */
+    guac_common_display* display;
+    
+    /**
+     * The Spice display channel.
+     */
+    SpiceDisplayChannel* spice_display;
+
+    /**
+     * The current state of the keyboard with respect to the RDP session.
+     */
+    guac_spice_keyboard* keyboard;
+
+    /**
+     * The glib main loop
+     */
+    GMainLoop* spice_mainloop;
+
+    /**
+     * Internal clipboard.
+     */
+    guac_common_clipboard* clipboard;
+
+    /**
+     * Shared folder.
+     */
+    guac_spice_folder* shared_folder;
+
+#ifdef ENABLE_COMMON_SSH
+    /**
+     * The user and credentials used to authenticate for SFTP.
+     */
+    guac_common_ssh_user* sftp_user;
+
+    /**
+     * The SSH session used for SFTP.
+     */
+    guac_common_ssh_session* sftp_session;
+
+    /**
+     * An SFTP-based filesystem.
+     */
+    guac_common_ssh_sftp_filesystem* sftp_filesystem;
+#endif
+
+    /**
+     * The in-progress session recording, or NULL if no recording is in
+     * progress.
+     */
+    guac_recording* recording;
+
+    /**
+     * Common attributes for locks.
+     */
+    pthread_mutexattr_t attributes;
+
+    /**
+     * Lock which is used to synchronizes access to Spice data structures
+     * between user input and client threads. It prevents input handlers
+     * from running when Spice data structures are allocated or freed
+     * by the client thread.
+     */
+    pthread_rwlock_t lock;
+
+    /**
+     * Lock which synchronizes the sending of each Spice message, ensuring
+     * attempts to send Spice messages never overlap.
+     */
+    pthread_mutex_t message_lock;
+
+    /**
+     * Audio output stream, if any.
+     */
+    guac_audio_stream* audio_playback;
+
+    /**
+     * Audio input stream, if any.
+     */
+    guac_stream* audio_input;
+
+} guac_spice_client;
+
+/**
+ * Allocates a new Spice client session given the parameters stored within the
+ * client, returning NULL on failure.
+ *
+ * @param client
+ *     The guac_client associated with the settings of the desired Spice
+ *     connection.
+ *
+ * @return
+ *     A new Spice session instance allocated and connected according to the
+ *     parameters stored within the given client, or NULL if connecting to the
+ *     Spice server fails.
+ */
+SpiceSession* guac_spice_get_session(guac_client* client);
+
+/**
+ * Spice client thread. This thread initiates the Spice connection and
+ * ultimately runs throughout the duration of the client, existing as a single
+ * instance, shared by all users.
+ *
+ * @param data
+ *     The guac_client instance associated with the requested Spice connection.
+ *
+ * @return
+ *     Always NULL.
+ */
+void* guac_spice_client_thread(void* data);
+
+#endif /* GUAC_SPICE_H */
+

src/protocols/spice/user.c

@@ -0,0 +1,129 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include "config.h"
+
+#include "channels/audio.h"
+#include "channels/clipboard.h"
+#include "input.h"
+#include "common/display.h"
+#include "common/dot_cursor.h"
+#include "common/pointer_cursor.h"
+#include "user.h"
+#include "sftp.h"
+#include "spice.h"
+
+#include <guacamole/argv.h>
+#include <guacamole/audio.h>
+#include <guacamole/client.h>
+#include <guacamole/socket.h>
+#include <guacamole/user.h>
+
+#include <pthread.h>
+
+int guac_spice_user_join_handler(guac_user* user, int argc, char** argv) {
+
+    guac_spice_client* spice_client = (guac_spice_client*) user->client->data;
+
+    /* Parse provided arguments */
+    guac_spice_settings* settings = guac_spice_parse_args(user,
+            argc, (const char**) argv);
+
+    /* Fail if settings cannot be parsed */
+    if (settings == NULL) {
+        guac_user_log(user, GUAC_LOG_INFO,
+                "Badly formatted client arguments.");
+        return 1;
+    }
+
+    /* Store settings at user level */
+    user->data = settings;
+
+    /* Connect via Spice if owner */
+    if (user->owner) {
+
+        /* Store owner's settings at client level */
+        spice_client->settings = settings;
+
+        /* Start client thread */
+        if (pthread_create(&spice_client->client_thread, NULL, guac_spice_client_thread, user->client)) {
+            guac_user_log(user, GUAC_LOG_ERROR, "Unable to start SPICE client thread.");
+            return 1;
+        }
+
+        /* Handle inbound audio streams if audio input is enabled */
+        if (settings->audio_input_enabled)
+            user->audio_handler = guac_spice_client_audio_record_handler;
+
+    }
+
+    /* If not owner, synchronize with current state */
+    else {
+
+        /* Synchronize with current display */
+        guac_common_display_dup(spice_client->display, user, user->socket);
+        guac_socket_flush(user->socket);
+
+    }
+
+    /* Only handle events if not read-only */
+    if (!settings->read_only) {
+
+        /* General mouse/keyboard events */
+        user->mouse_handler = guac_spice_user_mouse_handler;
+        user->key_handler = guac_spice_user_key_handler;
+
+        /* Inbound (client to server) clipboard transfer */
+        if (!settings->disable_paste)
+            user->clipboard_handler = guac_spice_clipboard_handler;
+        
+        /* Updates to connection parameters if we own the connection */
+        if (user->owner)
+            user->argv_handler = guac_argv_handler;
+
+#ifdef ENABLE_COMMON_SSH
+        /* Set generic (non-filesystem) file upload handler */
+        if (settings->enable_sftp && !settings->sftp_disable_upload)
+            user->file_handler = guac_spice_sftp_file_handler;
+#endif
+
+    }
+
+    return 0;
+
+}
+
+int guac_spice_user_leave_handler(guac_user* user) {
+
+    guac_spice_client* spice_client = (guac_spice_client*) user->client->data;
+
+    if (spice_client->display) {
+        /* Update shared cursor state */
+        guac_common_cursor_remove_user(spice_client->display->cursor, user);
+    }
+
+    /* Free settings if not owner (owner settings will be freed with client) */
+    if (!user->owner) {
+        guac_spice_settings* settings = (guac_spice_settings*) user->data;
+        guac_spice_settings_free(settings);
+    }
+
+    return 0;
+}
+

src/protocols/spice/user.h

@@ -17,17 +17,22 @@
  * under the License.
  */
 
-#ifndef GUAC_FIPS_H
+#ifndef GUAC_SPICE_USER_H
-#define GUAC_FIPS_H
+#define GUAC_SPICE_USER_H
+
+#include "config.h"
+
+#include <guacamole/user.h>
 
 /**
- * Returns a non-zero value if FIPS mode is enabled, or zero if FIPS mode
+ * Handler for joining users.
- * is not enabled.
- *
- * @return
- *      A non-zero value if FIPS mode is enabled, or zero if FIPS mode is
- *      not enabled.
  */
-int guac_fips_enabled();
+guac_user_join_handler guac_spice_user_join_handler;
+
+/**
+ * Handler for leaving users.
+ */
+guac_user_leave_handler guac_spice_user_leave_handler;
+
+#endif /* SPICE_USER_H */
 
-#endif

src/terminal/Makefile.am

@@ -77,8 +77,6 @@ libguac_terminal_la_LIBADD = \
     @LIBGUAC_LTLIB@
 
 libguac_terminal_la_LDFLAGS = \
-    -version-info 0:0:0       \
-    -no-undefined             \
     @CAIRO_LIBS@              \
     @MATH_LIBS@               \
     @PANGO_LIBS@              \

src/terminal/terminal.c

@@ -20,7 +20,6 @@
 
 #include "common/clipboard.h"
 #include "common/cursor.h"
-#include "common/iconv.h"
 #include "terminal/buffer.h"
 #include "terminal/color-scheme.h"
 #include "terminal/common.h"
@@ -937,13 +936,14 @@ void guac_terminal_commit_cursor(guac_terminal* term) {
 
 }
 
-int guac_terminal_write(guac_terminal* term, const char* buffer, int length) {
+int guac_terminal_write(guac_terminal* term, const char* c, int size) {
 
     guac_terminal_lock(term);
-    for (int written = 0; written < length; written++) {
+    while (size > 0) {
 
         /* Read and advance to next character */
-        char current = *(buffer++);
+        char current = *(c++);
+        size--;
 
         /* Write character to typescript, if any */
         if (term->typescript != NULL)
@@ -956,7 +956,7 @@ int guac_terminal_write(guac_terminal* term, const char* buffer, int length) {
     guac_terminal_unlock(term);
 
     guac_terminal_notify(term);
-    return length;
+    return 0;
 
 }
 
@@ -2165,20 +2165,11 @@ void guac_terminal_clipboard_reset(guac_terminal* terminal,
 
 void guac_terminal_clipboard_append(guac_terminal* terminal,
         const char* data, int length) {
-
+    guac_common_clipboard_append(terminal->clipboard, data, length);
-    /* Allocate and clear space for the converted data */
-    char output_data[GUAC_COMMON_CLIPBOARD_MAX_LENGTH];
-    char* output = output_data;
-
-    /* Convert clipboard contents */
-    guac_iconv(GUAC_READ_UTF8_NORMALIZED, &data, length,
-            GUAC_WRITE_UTF8, &output, GUAC_COMMON_CLIPBOARD_MAX_LENGTH);
-
-    guac_common_clipboard_append(terminal->clipboard, output_data, output - output_data);
 }
 
 void guac_terminal_remove_user(guac_terminal* terminal, guac_user* user) {
 
     /* Remove the user from the terminal cursor */
     guac_common_cursor_remove_user(terminal->cursor, user);
-}
+}

src/terminal/terminal/terminal-priv.h

@@ -29,22 +29,6 @@
 #include "terminal.h"
 #include "typescript.h"
 
-/**
- * Handler for characters printed to the terminal. When a character is printed,
- * the current char handler for the terminal is called and given that
- * character.
- *
- * @param term
- *     The terminal receiving the character.
- *
- * @param c
- *     The received character.
- *
- * @return
- *     Zero if the character was handled successfully, non-zero otherwise.
- */
-typedef int guac_terminal_char_handler(guac_terminal* term, unsigned char c);
-
 struct guac_terminal {
 
     /**

src/terminal/terminal/terminal.h

@@ -141,35 +141,19 @@ typedef enum guac_terminal_cursor_type {
 } guac_terminal_cursor_type;
 
 /**
- * Handler that is invoked whenever the necessary terminal codes are sent to
+ * Handler for characters printed to the terminal. When a character is printed,
- * to the given terminal to change the path for future file uploads.
+ * the current char handler for the terminal is called and given that
- *
+ * character.
- * @param client
+ */
- *     The guac_client associated with the terminal receiving the upload path
+typedef int guac_terminal_char_handler(guac_terminal* term, unsigned char c);
- *     change terminal code.
+
- *
+/**
- * @param path
+ * Handler for setting the destination path for file uploads.
- *     The requested path.
  */
 typedef void guac_terminal_upload_path_handler(guac_client* client, char* path);
 
 /**
- * Handler that is invoked whenever the necessary terminal codes are sent to
+ * Handler for creating an outbound file download stream for a specified file.
- * initiate a download of a given remote file.
- *
- * @param client
- *     The guac_client associated with the terminal receiving the file download
- *     terminal code.
- *
- * @param filename
- *     The name of the requested file. This may be a relative or absolute path,
- *     and it is up to the implementation to define how this value is
- *     interpreted.
- *
- * @return
- *     The file stream created for the file download, already configured to
- *     properly handle "ack" responses, etc. from the client, or NULL if the
- *     stream could not be created.
  */
 typedef guac_stream* guac_terminal_file_download_handler(guac_client* client, char* filename);
 
@@ -292,16 +276,11 @@ guac_terminal_options* guac_terminal_options_create(
 
 /**
  * Frees all resources associated with the given terminal.
- *
- * @param term
- *     The terminal to free.
  */
 void guac_terminal_free(guac_terminal* term);
 
 /**
- * Sets the upload path handler for the given terminal. The upload path handler
+ * Set the upload path handler for the given terminal.
- * is invoked whenever the terminal codes requesting an upload path change are
- * sent.
  *
  * @param terminal
  *     The terminal to set the upload path handler for.
@@ -314,14 +293,12 @@ void guac_terminal_set_upload_path_handler(guac_terminal* terminal,
         guac_terminal_upload_path_handler* upload_path_handler);
 
 /**
- * Sets the file download handler for the given terminal. The file download
+ * Set the file download handler for the given terminal.
- * handler is invoked whenever the terminal codes requesting download of a
- * given remote file are sent.
  *
  * @param terminal
  *     The terminal to set the file download handler for.
  *
- * @param file_download_handler
+ * @param upload_path_handler
  *      The handler to be called whenever the necessary terminal codes are sent to
  *      the given terminal to initiate a download of a given remote file.
  */
@@ -331,13 +308,6 @@ void guac_terminal_set_file_download_handler(guac_terminal* terminal,
 /**
  * Renders a single frame of terminal data. If data is not yet available,
  * this function will block until data is written.
- *
- * @param terminal
- *     The terminal that should be rendered.
- *
- * @return
- *     Zero if the frame was rendered successfully, non-zero if an error
- *     occurred.
  */
 int guac_terminal_render_frame(guac_terminal* terminal);
 
@@ -346,19 +316,6 @@ int guac_terminal_render_frame(guac_terminal* terminal);
  * supplied by calls to guac_terminal_send_key(),
  * guac_terminal_send_mouse(), and guac_terminal_send_stream(). If input is not
  * yet available, this function will block.
- *
- * @param terminal
- *     The terminal to read from.
- *
- * @param c
- *     The buffer that should receive the bytes read.
- *
- * @param size
- *     The number of bytes available within the buffer.
- *
- * @return
- *     The number of bytes read into the buffer, zero if end-of-file is reached
- *     (STDIN has been closed), or a negative value if an error occurs.
  */
 int guac_terminal_read_stdin(guac_terminal* terminal, char* c, int size);
 
@@ -420,23 +377,8 @@ char* guac_terminal_prompt(guac_terminal* terminal, const char* title,
 
 /**
  * Writes the given format string and arguments to this terminal's STDOUT in
- * the same manner as printf(). The entire populated format string will always
+ * the same manner as printf(). This function may block until space is
- * be written unless an error occurs. This function may block until space is
  * freed in the output buffer by guac_terminal_render_frame().
- *
- * @param terminal
- *     The terminal to write to.
- *
- * @param format
- *     A printf-style format string describing the data to be written to
- *     STDOUT.
- *
- * @param ...
- *     Any arguments to use when filling the format string.
- *
- * @return
- *     The number of bytes written to STDOUT, or a negative value if an error
- *     occurs preventing the data from being written in its entirety.
  */
 int guac_terminal_printf(guac_terminal* terminal, const char* format, ...);
 
@@ -544,24 +486,9 @@ int guac_terminal_send_data(guac_terminal* term, const char* data, int length);
 int guac_terminal_send_string(guac_terminal* term, const char* data);
 
 /**
- * Writes the given buffer to the given terminal's STDOUT. All requested bytes
+ * Writes the given string of characters to the terminal.
- * will be written unless an error occurs. This function may block until space
- * is freed in the output buffer by guac_terminal_render_frame().
- *
- * @param term
- *     The terminal to write to.
- *
- * @param buffer
- *     A buffer containing the characters to be written to the terminal.
- *
- * @param length
- *     The number of bytes within the given string to write to the terminal.
- *
- * @return
- *     The number of bytes written to STDOUT, or a negative value if an error
- *     occurs preventing the data from being written in its entirety.
  */
-int guac_terminal_write(guac_terminal* term, const char* buffer, int length);
+int guac_terminal_write(guac_terminal* term, const char* c, int size);
 
 /**
  * Initializes the handlers of the given guac_stream such that it serves as the
@@ -605,7 +532,7 @@ int guac_terminal_send_stream(guac_terminal* term, guac_user* user,
  *     STDIN.
  *
  * @param ...
- *     Any arguments to use when filling the format string.
+ *     Any srguments to use when filling the format string.
  *
  * @return
  *     The number of bytes written to STDIN, or a negative value if an error
@@ -633,20 +560,7 @@ void guac_terminal_dup(guac_terminal* term, guac_user* user,
         guac_socket* socket);
 
 /**
- * Resize the client display and terminal to the given pixel dimensions.
+ * Resize the terminal to the given dimensions.
- *
- * @param term
- *     The terminal to resize.
- *
- * @param width
- *     The new terminal width, in pixels.
- *
- * @param height
- *     The new terminal height, in pixels.
- *
- * @return
- *     Zero if the terminal was successfully resized to the given dimensions,
- *     non-zero otherwise.
  */
 int guac_terminal_resize(guac_terminal* term, int width, int height);