From 2428c7eb148649e031258e7201491bbd1a66514b Mon Sep 17 00:00:00 2001
From: Michael Jumper <mjumper@apache.org>
Date: Thu, 17 Feb 2022 14:34:51 -0800
Subject: [PATCH] GUACAMOLE-462: Report size of files downloaded via the static
 HTTP tunnel.

---
 guacamole-common-js/src/main/webapp/modules/Tunnel.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/guacamole-common-js/src/main/webapp/modules/Tunnel.js b/guacamole-common-js/src/main/webapp/modules/Tunnel.js
index 677c570bf..23657cddc 100644
--- a/guacamole-common-js/src/main/webapp/modules/Tunnel.js
+++ b/guacamole-common-js/src/main/webapp/modules/Tunnel.js
@@ -1365,6 +1365,14 @@ Guacamole.StaticHTTPTunnel = function StaticHTTPTunnel(url, crossDomain, extraTu
      */
     var extraHeaders = extraTunnelHeaders || {};
 
+    /**
+     * The number of bytes in the file being downloaded, or null if this is not
+     * known.
+     *
+     * @type {number}
+     */
+    this.size = null;
+
     this.sendMessage = function sendMessage(elements) {
         // Do nothing
     };
@@ -1411,6 +1419,9 @@ Guacamole.StaticHTTPTunnel = function StaticHTTPTunnel(url, crossDomain, extraTu
 
             }
 
+            // Report overall size of stream in bytes, if known
+            tunnel.size = response.headers.get('Content-Length');
+
             // Connection is open
             tunnel.setState(Guacamole.Tunnel.State.OPEN);