# HG changeset patch
# User Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
# Date 1310303782 -7200
# Node ID 27eaec05cfd042bc8230ba4aacc98fdd33424def
# Parent  6689cc444617cd52832a044a2ccc98e4e9358f89
Expire the avatar after a configurable amount of time.

diff --git a/avatar.js b/avatar.js
--- a/avatar.js
+++ b/avatar.js
@@ -189,7 +189,8 @@ var getVCard = function(jid, res) {
 var showImage = function(jid, res) {
 	var extension = jids[jid];
 	var file = config.directory+'/'+jid+'.'+extension;
-	res.writeHead(200, {'Content-Type': extensions[extension]});
+	var now = new Date;
+	res.writeHead(200, {'Content-Type': extensions[extension], Expires: new Date(config.expire * 1000 + now.getTime())});
 	fs.readFile(file, function(err, data) {
 		res.end(data);
 	});
@@ -200,9 +201,8 @@ var showImage = function(jid, res) {
 		}
 
 		var last = new Date(stats.mtime);
-		var now = new Date;
 
-		if (now - last > 24*60*60*1000)
+		if (now - last > config.expire * 1000)
 			getVCard(jid, res);
 	});
 	return;
diff --git a/configuration.js.example b/configuration.js.example
--- a/configuration.js.example
+++ b/configuration.js.example
@@ -42,3 +42,6 @@ config.directory = 'data';
 // specified.  Warning: it doesn’t follow the spec and is only a
 // workaround for buggy clients.
 config.guessType = false;
+
+// Time after which the avatar will be retrieved again, in seconds.
+config.expire = 24*60*60;