From 6883a60f5d024437a3a8b8a60688a5d73844a91e Mon Sep 17 00:00:00 2001
From: John Supplee <john@supplee.com>
Date: Sun, 3 Mar 2019 19:15:59 +0200
Subject: [PATCH] load images as base64

---
 management/daemon.py                |  9 +++-----
 management/templates/mailgraph.html | 33 +++++++++++++++++------------
 2 files changed, 23 insertions(+), 19 deletions(-)

diff --git a/management/daemon.py b/management/daemon.py
index b53c3c40..7e0d4936 100755
--- a/management/daemon.py
+++ b/management/daemon.py
@@ -521,7 +521,7 @@ def privacy_status_set():
 	return "OK"
 
 # Mailgraph
-
+import base64
 @app.route('/mailgraph/image.cgi', methods=['GET'])
 @authorized_personnel_only
 def mailgraph():
@@ -540,11 +540,8 @@ def mailgraph():
 			return ('Error generating mailgraph image: %s' % request.query_string, 500)
 
 		headers, image_bytes = bin_out.split(b'\n\n', 1)
-		response = make_response(image_bytes)
-		for line in headers.splitlines():
-			name, value = line.decode("utf8").split(':', 1)
-			response.headers[name] = value
-		return response
+
+		return base64.b64encode(image_bytes)
 
 	return ('Mailgraph: no image requested', 500)
 
diff --git a/management/templates/mailgraph.html b/management/templates/mailgraph.html
index 086aa9cc..25428509 100644
--- a/management/templates/mailgraph.html
+++ b/management/templates/mailgraph.html
@@ -7,24 +7,24 @@
 </ul>
 
 <h3 id="G0">Last Day</h3>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?0-n" alt="mailgraph"/></p>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?0-e" alt="mailgraph"/></p>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?0-g" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?0-n" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?0-e" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?0-g" alt="mailgraph"/></p>
 
 <h3 id="G1">Last Week</h3>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?1-n" alt="mailgraph"/></p>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?1-e" alt="mailgraph"/></p>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?1-g" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?1-n" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?1-e" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?1-g" alt="mailgraph"/></p>
 
 <h3 id="G2">Last Month</h3>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?2-n" alt="mailgraph"/></p>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?2-e" alt="mailgraph"/></p>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?2-g" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?2-n" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?2-e" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?2-g" alt="mailgraph"/></p>
 
 <h3 id="G3">Last Year</h3>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?3-n" alt="mailgraph"/></p>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?3-e" alt="mailgraph"/></p>
-<p><img src="" data-src="/admin/mailgraph/image.cgi?3-g" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?3-n" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?3-e" alt="mailgraph"/></p>
+<p><img src="" data-src="/mailgraph/image.cgi?3-g" alt="mailgraph"/></p>
 
 <hr/>
 
@@ -34,7 +34,14 @@
 <script type="text/javascript">
     function show_mailgraph() {
         $('[data-src]').each(function() {
-            $(this).attr('src', $(this).attr('data-src'));
+            api(
+                $(this).attr('data-src'),
+                'GET',
+                '',
+                function(data) {
+                    $(this).attr('src', 'data:image/gif;base64,' + data);
+                }
+            );
         });
     }
 </script>