From 2085ee7424648cde0bfcdbcda7b507cd1ce9c0dc Mon Sep 17 00:00:00 2001
From: Michael Jumper <mjumper@apache.org>
Date: Tue, 30 Jul 2019 13:02:01 -0700
Subject: [PATCH] GUACAMOLE-629: Allow client to receive connection parameter
 values via "argv" streams.

---
 .../src/main/webapp/modules/Client.js         | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/guacamole-common-js/src/main/webapp/modules/Client.js b/guacamole-common-js/src/main/webapp/modules/Client.js
index e947b7030..07baf7731 100644
--- a/guacamole-common-js/src/main/webapp/modules/Client.js
+++ b/guacamole-common-js/src/main/webapp/modules/Client.js
@@ -649,6 +649,23 @@ Guacamole.Client = function(tunnel) {
      */
     this.onvideo = null;
 
+    /**
+     * Fired when the current value of a connection parameter is being exposed
+     * by the server.
+     *
+     * @event
+     * @param {Guacamole.InputStream} stream
+     *     The stream that will receive connection parameter data from the
+     *     server.
+     *
+     * @param {String} mimetype
+     *     The mimetype of the data which will be received.
+     *
+     * @param {String} name
+     *     The name of the connection parameter whose value is being exposed.
+     */
+    this.onargv = null;
+
     /**
      * Fired when the clipboard of the remote client is changing.
      * 
@@ -846,6 +863,24 @@ Guacamole.Client = function(tunnel) {
 
         },
 
+        "argv": function(parameters) {
+
+            var stream_index = parseInt(parameters[0]);
+            var mimetype = parameters[1];
+            var name = parameters[2];
+
+            // Create stream
+            if (guac_client.onargv) {
+                var stream = streams[stream_index] = new Guacamole.InputStream(guac_client, stream_index);
+                guac_client.onargv(stream, mimetype, name);
+            }
+
+            // Otherwise, unsupported
+            else
+                guac_client.sendAck(stream_index, "Receiving argument values unsupported", 0x0100);
+
+        },
+
         "audio": function(parameters) {
 
             var stream_index = parseInt(parameters[0]);