GUAC-653: Restore file upload for SSH.

src/protocols/ssh/ssh_client.c

@@ -309,6 +309,10 @@ void* ssh_client_thread(void* data) {
     /* Start SFTP session as well, if enabled */
     if (client_data->enable_sftp) {
 
+        /* Init handlers for Guacamole-specific console codes */
+        client_data->term->upload_path_handler = guac_sftp_set_upload_path;
+        client_data->term->file_download_handler = guac_sftp_download_file;
+
         /* Create SSH session specific for SFTP */
         guac_client_log_info(client, "Reconnecting for SFTP...");
         client_data->sftp_ssh_session = __guac_ssh_create_session(client, NULL);

src/terminal/terminal.c

@@ -100,6 +100,8 @@ guac_terminal* guac_terminal_create(guac_client* client,
 
     guac_terminal* term = malloc(sizeof(guac_terminal));
     term->client = client;
+    term->upload_path_handler = NULL;
+    term->file_download_handler = NULL;
 
     /* Init buffer */
     term->buffer = guac_terminal_buffer_alloc(1000, &default_char);

src/terminal/terminal.h

@@ -61,6 +61,16 @@ typedef struct guac_terminal guac_terminal;
  */
 typedef int guac_terminal_char_handler(guac_terminal* term, unsigned char c);
 
+/**
+ * Handler for setting the destination path for file uploads.
+ */
+typedef void guac_terminal_upload_path_handler(guac_client* client, char* path);
+
+/**
+ * Handler for creating an outbound file download stream for a specified file.
+ */
+typedef guac_stream* guac_terminal_file_download_handler(guac_client* client, char* filename);
+
 /**
  * Represents a terminal emulator which uses a given Guacamole client to
  * render itself.
@@ -72,6 +82,18 @@ struct guac_terminal {
      */
     guac_client* client;
 
+    /**
+     * Called whenever the necessary terminal codes are sent to change
+     * the path for future file uploads.
+     */
+    guac_terminal_upload_path_handler* upload_path_handler;
+
+    /**
+     * Called whenever the necessary terminal codes are sent to initiate
+     * a download of a given remote file.
+     */
+    guac_terminal_file_download_handler* file_download_handler;
+
     /**
      * Lock which restricts simultaneous access to this terminal via the root
      * guac_terminal_* functions.

src/terminal/terminal_handlers.c

@@ -884,7 +884,8 @@ int guac_terminal_set_directory(guac_terminal* term, unsigned char c) {
     if (c == 0x9C || c == 0x5C || c == 0x07) {
         filename[length++] = '\0';
         term->char_handler = guac_terminal_echo;
-        /*guac_sftp_set_upload_path(term->client, filename);*/
+        if (term->upload_path_handler)
+            term->upload_path_handler(term->client, filename);
         length = 0;
     }
 
@@ -905,7 +906,8 @@ int guac_terminal_download(guac_terminal* term, unsigned char c) {
     if (c == 0x9C || c == 0x5C || c == 0x07) {
         filename[length++] = '\0';
         term->char_handler = guac_terminal_echo;
-        /*guac_sftp_download_file(term->client, filename);*/
+        if (term->file_download_handler)
+            term->file_download_handler(term->client, filename);
         length = 0;
     }