mike-jumper commented on a change in pull request #219: GUACAMOLE-422: Add
timezone to client handshake
URL: https://github.com/apache/guacamole-server/pull/219#discussion_r279173064
##########
File path: src/libguac/user-handlers.c
##########
@@ -581,3 +593,136 @@ int __guac_handle_disconnect(guac_user* user, int argc,
char** argv) {
return 0;
}
+/* Guacamole handshake handler functions. */
+
+int __guac_handshake_size_handler(guac_user* user, int argc, char** argv) {
+
+ /* Validate size of instruction. */
+ if (argc < 2) {
+ guac_user_log(user, GUAC_LOG_ERROR, "Received \"size\" "
+ "instruction lacked required arguments.");
+ return 1;
+ }
+
+ /* Parse optimal screen dimensions from size instruction */
+ user->info.optimal_width = atoi(argv[0]);
+ user->info.optimal_height = atoi(argv[1]);
+
+ /* If DPI given, set the user resolution */
+ if (argc >= 3)
+ user->info.optimal_resolution = atoi(argv[2]);
+
+ /* Otherwise, use a safe default for rough backwards compatibility */
+ else
+ user->info.optimal_resolution = 96;
+
+ return 0;
+
+}
+
+int __guac_handshake_audio_handler(guac_user* user, int argc, char** argv) {
+
+ guac_free_mimetypes((char **) user->info.audio_mimetypes);
+
+ /* Store audio mimetypes */
+ user->info.audio_mimetypes = (const char**) guac_copy_mimetypes(argv,
argc);
+
+ return 0;
+
+}
+
+int __guac_handshake_video_handler(guac_user* user, int argc, char** argv) {
+
+ guac_free_mimetypes((char **) user->info.video_mimetypes);
+
+ /* Store video mimetypes */
+ user->info.video_mimetypes = (const char**) guac_copy_mimetypes(argv,
argc);
+
+ return 0;
+
+}
+
+int __guac_handshake_image_handler(guac_user* user, int argc, char** argv) {
+
+ guac_free_mimetypes((char **) user->info.image_mimetypes);
+
+ /* Store image mimetypes */
+ user->info.image_mimetypes = (const char**) guac_copy_mimetypes(argv,
argc);
+
+ return 0;
+
+}
+
+int __guac_handshake_timezone_handler(guac_user* user, int argc, char** argv) {
+
+ /* Free any past value */
+ free((char *) user->info.timezone);
+
+ /* Store timezone, if present */
+ if (argc > 0 && strcmp(argv[0], ""))
+ user->info.timezone = (const char*) strdup(argv[0]);
+
+ else
+ user->info.timezone = NULL;
+
+ return 0;
+
+}
+
+char** guac_copy_mimetypes(char** mimetypes, int count) {
+
+ int i;
+
+ /* Allocate sufficient space for NULL-terminated array of mimetypes */
+ char** mimetypes_copy = malloc(sizeof(char*) * (count+1));
+
+ /* Copy each provided mimetype */
+ for (i = 0; i < count; i++)
+ mimetypes_copy[i] = strdup(mimetypes[i]);
+
+ /* Terminate with NULL */
+ mimetypes_copy[count] = NULL;
+
+ return mimetypes_copy;
+
+}
+
+void guac_free_mimetypes(char** mimetypes) {
+
+ if (mimetypes == NULL)
+ return;
+
+ char** current_mimetype = mimetypes;
+
+ /* Free all strings within NULL-terminated mimetype array */
+ while (*current_mimetype != NULL) {
+ free(*current_mimetype);
+ current_mimetype++;
+ }
+
+ /* Free the array itself, now that its contents have been freed */
+ free(mimetypes);
+
+}
+
+int __guac_user_call_opcode_handler(__guac_instruction_handler_mapping* map,
+ guac_user* user, const char* opcode, int argc, char** argv) {
+
+ /* For each defined instruction */
+ __guac_instruction_handler_mapping* current = map;
+ while (current->opcode != NULL) {
+
+ /* If recognized, call handler */
+ if (strcmp(opcode, current->opcode) == 0)
+ return current->handler(user, argc, argv);
+
+ current++;
+ }
+
+ /* If unrecognized, log and ignore */
+ guac_user_log(user, GUAC_LOG_WARNING, "Handler not found for \"%s\"",
Review comment:
I think you mean `GUAC_LOG_DEBUG`.
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