GUAC-608: Convert VNC outbound clipboard to common code. Stub inbound clipboard.

src/protocols/vnc/Makefile.am

@@ -31,12 +31,14 @@ lib_LTLIBRARIES = libguac-client-vnc.la
 
 libguac_client_vnc_la_SOURCES = \
     client.c                    \
+    clipboard.c                 \
     convert.c                   \
     guac_handlers.c             \
     vnc_handlers.c              
     
 noinst_HEADERS =      \
     client.h          \
+    clipboard.h       \
     convert.h         \
     guac_handlers.h   \
     vnc_handlers.h    

src/protocols/vnc/client.c

@@ -23,6 +23,7 @@
 #include "config.h"
 
 #include "client.h"
+#include "guac_clipboard.h"
 #include "guac_dot_cursor.h"
 #include "guac_handlers.h"
 #include "guac_pointer_cursor.h"
@@ -266,6 +267,9 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
         guac_client_data->listen_timeout = 5000;
 #endif
 
+    /* Init clipboard */
+    guac_client_data->clipboard = guac_common_clipboard_alloc(GUAC_VNC_CLIPBOARD_MAX_LENGTH);
+
     /* Ensure connection is kept alive during lengthy connects */
     guac_socket_require_keep_alive(client->socket);
 

src/protocols/vnc/client.h

@@ -25,6 +25,7 @@
 #define __GUAC_VNC_CLIENT_H
 
 #include "config.h"
+#include "guac_clipboard.h"
 
 #include <guacamole/audio.h>
 #include <guacamole/client.h>
@@ -51,6 +52,11 @@
  */
 #define GUAC_VNC_CONNECT_INTERVAL 1000
 
+/**
+ * The maximum number of bytes to allow within the clipboard.
+ */
+#define GUAC_VNC_CLIPBOARD_MAX_LENGTH 262144
+
 extern char* __GUAC_CLIENT;
 
 /**
@@ -168,7 +174,12 @@ typedef struct vnc_guac_client_data {
      */
     pa_threaded_mainloop* pa_mainloop;
 #endif
-    
+
+    /**
+     * Internal clipboard.
+     */
+    guac_common_clipboard* clipboard;
+
 } vnc_guac_client_data;
 
 #endif

src/protocols/vnc/clipboard.c

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2014 Glyptodon LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "config.h"
+#include "clipboard.h"
+
+int guac_vnc_clipboard_handler(guac_client* client, guac_stream* stream,
+        char* mimetype) {
+    /* STUB */
+    return 0;
+}
+
+int guac_vnc_clipboard_blob_handler(guac_client* client, guac_stream* stream,
+        void* data, int length) {
+    /* STUB */
+    return 0;
+}
+
+int guac_vnc_clipboard_end_handler(guac_client* client, guac_stream* stream) {
+    /* STUB */
+    return 0;
+}
+

src/protocols/vnc/clipboard.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2014 Glyptodon LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef _GUAC_VNC_CLIPBOARD_H
+#define _GUAC_VNC_CLIPBOARD_H
+
+#include "config.h"
+
+#include <guacamole/client.h>
+#include <guacamole/stream.h>
+
+/**
+ * Handler for inbound clipboard data.
+ */
+int guac_vnc_clipboard_handler(guac_client* client, guac_stream* stream,
+        char* mimetype);
+
+/**
+ * Handler for stream data related to clipboard.
+ */
+int guac_vnc_clipboard_blob_handler(guac_client* client, guac_stream* stream,
+        void* data, int length);
+
+/**
+ * Handler for end-of-stream related to clipboard.
+ */
+int guac_vnc_clipboard_end_handler(guac_client* client, guac_stream* stream);
+
+#endif
+

src/protocols/vnc/guac_handlers.c

@@ -24,6 +24,7 @@
 
 #include "client.h"
 #include "convert.h"
+#include "guac_clipboard.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -96,8 +97,8 @@ int vnc_guac_client_key_handler(guac_client* client, int keysym, int pressed) {
     return 0;
 }
 
-int vnc_guac_client_clipboard_handler(guac_client* client, char* data) {
+int vnc_guac_client_clipboard_handler(guac_client* client, guac_stream* stream, char* mimetype) {
-
+#if 0
     rfbClient* rfb_client = ((vnc_guac_client_data*) client->data)->rfb_client;
 
     /* Convert UTF-8 character data to ISO_8859-1 */
@@ -115,7 +116,7 @@ int vnc_guac_client_clipboard_handler(guac_client* client, char* data) {
     } 
     else
         SendClientCutText(rfb_client, "", 0);
-
+#endif
     return 0;
 }
 
@@ -134,6 +135,9 @@ int vnc_guac_client_free_handler(guac_client* client) {
     if (guac_client_data->encodings != NULL)
         free(guac_client_data->encodings);
 
+    /* Free clipboard */
+    guac_common_clipboard_free(guac_client_data->clipboard);
+
     /* Free generic data struct */
     free(client->data);
 

src/protocols/vnc/guac_handlers.h

@@ -31,7 +31,7 @@
 int vnc_guac_client_handle_messages(guac_client* client);
 int vnc_guac_client_mouse_handler(guac_client* client, int x, int y, int mask);
 int vnc_guac_client_key_handler(guac_client* client, int keysym, int pressed);
-int vnc_guac_client_clipboard_handler(guac_client* client, char* data);
+int vnc_guac_client_clipboard_handler(guac_client* client, guac_stream* stream, char* mimetype);
 int vnc_guac_client_free_handler(guac_client* client);
 
 #endif

src/protocols/vnc/vnc_handlers.c

@@ -23,9 +23,8 @@
 #include "config.h"
 
 #include "client.h"
-#include "convert.h"
+#include "guac_iconv.h"
 
-#include <iconv.h>
 #include <stdlib.h>
 #include <syslog.h>
 #include <time.h>
@@ -298,14 +297,21 @@ rfbBool guac_vnc_malloc_framebuffer(rfbClient* rfb_client) {
 void guac_vnc_cut_text(rfbClient* client, const char* text, int textlen) {
 
     guac_client* gc = rfbClientGetClientData(client, __GUAC_CLIENT);
-    guac_socket* socket = gc->socket;
+    vnc_guac_client_data* client_data = (vnc_guac_client_data*) gc->data;
 
-    /* Convert ASCII character data to UTF-8 */
+    char received_data[GUAC_VNC_CLIPBOARD_MAX_LENGTH];
-    char* utf8_text = convert("ISO_8859-1", "UTF-8", text);
 
-    guac_protocol_send_clipboard(socket, utf8_text);
+    const char* input = text;
+    char* output = received_data;
 
-    free(utf8_text);
+    /* Convert clipboard contents */
+    guac_iconv(GUAC_READ_ISO8859_1, &input, textlen,
+               GUAC_WRITE_UTF8, &output, sizeof(received_data));
+
+    /* Send converted data */
+    guac_common_clipboard_reset(client_data->clipboard, "text/plain");
+    guac_common_clipboard_append(client_data->clipboard, received_data, output - received_data);
+    guac_common_clipboard_send(client_data->clipboard, gc);
 
 }