From 4b7c679808c7c299f6750802af923d5908e03f5b Mon Sep 17 00:00:00 2001
From: Michael Jumper <mjumper@apache.org>
Date: Sun, 23 Apr 2017 15:13:37 -0700
Subject: [PATCH] GUACAMOLE-265: Set connection name when terminal window title
 is changed.

---
 src/terminal/terminal/terminal_handlers.h | 13 +++++++++
 src/terminal/terminal_handlers.c          | 34 +++++++++++++++++++++++
 2 files changed, 47 insertions(+)

diff --git a/src/terminal/terminal/terminal_handlers.h b/src/terminal/terminal/terminal_handlers.h
index 0a8fdcef..0b2f9bb3 100644
--- a/src/terminal/terminal/terminal_handlers.h
+++ b/src/terminal/terminal/terminal_handlers.h
@@ -138,6 +138,19 @@ int guac_terminal_open_pipe_stream(guac_terminal* term, unsigned char c);
  */
 int guac_terminal_close_pipe_stream(guac_terminal* term, unsigned char c);
 
+/**
+ * Parses the remainder of an OSC sequence setting the window title. The
+ * window title is everything after the window title sequence begins, up to
+ * the end of the OSC sequence itself.
+ *
+ * @param term
+ *     The terminal that received the given character of data.
+ *
+ * @param c
+ *     The character that was received by the given terminal.
+ */
+int guac_terminal_window_title(guac_terminal* term, unsigned char c);
+
 /**
  * Parses the remainder of xterm's OSC sequence for redefining the terminal
  * emulator's palette.
diff --git a/src/terminal/terminal_handlers.c b/src/terminal/terminal_handlers.c
index 8e83fb11..633798b1 100644
--- a/src/terminal/terminal_handlers.c
+++ b/src/terminal/terminal_handlers.c
@@ -1156,6 +1156,36 @@ int guac_terminal_close_pipe_stream(guac_terminal* term, unsigned char c) {
 
 }
 
+int guac_terminal_window_title(guac_terminal* term, unsigned char c) {
+
+    static int position = 0;
+    static char title[4096];
+
+    guac_socket* socket = term->client->socket;
+
+    /* Stop on ECMA-48 ST (String Terminator */
+    if (c == 0x9C || c == 0x5C || c == 0x07) {
+
+        /* Terminate and reset stored title */
+        title[position] = '\0';
+        position = 0;
+
+        /* Send title as connection name */
+        guac_protocol_send_name(socket, title);
+        guac_socket_flush(socket);
+
+        term->char_handler = guac_terminal_echo;
+
+    }
+
+    /* Store all other characters within title, space permitting */
+    else if (position < sizeof(title) - 1)
+        title[position++] = (char) c;
+
+    return 0;
+
+}
+
 int guac_terminal_xterm_palette(guac_terminal* term, unsigned char c) {
 
     /* NOTE: Currently unimplemented. Attempts to set the 256-color palette
@@ -1196,6 +1226,10 @@ int guac_terminal_osc(guac_terminal* term, unsigned char c) {
         else if (operation == 482203)
             term->char_handler = guac_terminal_close_pipe_stream;
 
+        /* Set window title OSC */
+        else if (operation == 0 || operation == 2)
+            term->char_handler = guac_terminal_window_title;
+
         /* xterm 256-color palette redefinition */
         else if (operation == 4)
             term->char_handler = guac_terminal_xterm_palette;