GUAC-236: Add screen recording support to telnet.

src/protocols/telnet/settings.c

@@ -46,6 +46,9 @@ const char* GUAC_TELNET_CLIENT_ARGS[] = {
     "typescript-path",
     "typescript-name",
     "create-typescript-path",
+    "recording-path",
+    "recording-name",
+    "create-recording-path",
     NULL
 };
 
@@ -120,6 +123,24 @@ enum TELNET_ARGS_IDX {
      */
     IDX_CREATE_TYPESCRIPT_PATH,
 
+    /**
+     * 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 recording which are written in
+     * the given path.
+     */
+    IDX_RECORDING_NAME,
+
+    /**
+     * Whether the specified screen recording path should automatically be
+     * created if it does not yet exist.
+     */
+    IDX_CREATE_RECORDING_PATH,
+
     TELNET_ARGS_COUNT
 };
 
@@ -239,6 +260,21 @@ guac_telnet_settings* guac_telnet_parse_args(guac_user* user,
         guac_user_parse_args_boolean(user, GUAC_TELNET_CLIENT_ARGS, argv,
                 IDX_CREATE_TYPESCRIPT_PATH, false);
 
+    /* Read recording path */
+    settings->recording_path =
+        guac_user_parse_args_string(user, GUAC_TELNET_CLIENT_ARGS, argv,
+                IDX_RECORDING_PATH, NULL);
+
+    /* Read recording name */
+    settings->recording_name =
+        guac_user_parse_args_string(user, GUAC_TELNET_CLIENT_ARGS, argv,
+                IDX_RECORDING_NAME, GUAC_TELNET_DEFAULT_RECORDING_NAME);
+
+    /* Parse path creation flag */
+    settings->create_recording_path =
+        guac_user_parse_args_boolean(user, GUAC_TELNET_CLIENT_ARGS, argv,
+                IDX_CREATE_RECORDING_PATH, false);
+
     /* Parsing was successful */
     return settings;
 
@@ -274,6 +310,10 @@ void guac_telnet_settings_free(guac_telnet_settings* settings) {
     free(settings->typescript_name);
     free(settings->typescript_path);
 
+    /* Free screen recording settings */
+    free(settings->recording_name);
+    free(settings->recording_path);
+
     /* Free overall structure */
     free(settings);
 

src/protocols/telnet/settings.h

@@ -53,6 +53,11 @@
  */
 #define GUAC_TELNET_DEFAULT_TYPESCRIPT_NAME "typescript" 
 
+/**
+ * The filename to use for the screen recording, if not specified.
+ */
+#define GUAC_TELNET_DEFAULT_RECORDING_NAME "recording"
+
 /**
  * The regular expression to use when searching for the username/login prompt
  * if no other regular expression is specified.
@@ -157,6 +162,23 @@ typedef struct guac_telnet_settings {
      */
     bool create_typescript_path;
 
+    /**
+     * 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;
+
 } guac_telnet_settings;
 
 /**

src/protocols/telnet/telnet.c

@@ -21,6 +21,7 @@
  */
 
 #include "config.h"
+#include "guac_recording.h"
 #include "telnet.h"
 #include "terminal.h"
 
@@ -468,6 +469,14 @@ void* guac_telnet_client_thread(void* data) {
     char buffer[8192];
     int wait_result;
 
+    /* Set up screen recording, if requested */
+    if (settings->recording_path != NULL) {
+        guac_common_recording_create(client,
+                settings->recording_path,
+                settings->recording_name,
+                settings->create_recording_path);
+    }
+
     /* Create terminal */
     telnet_client->term = guac_terminal_create(client,
             settings->font_name, settings->font_size,