diff -r 12fc4e8b6fde -r bb7808e180c3 Utils/WikiTagUtils.php
--- a/Utils/WikiTagUtils.php	Mon Feb 20 12:09:41 2012 +0100
+++ b/Utils/WikiTagUtils.php	Thu Feb 23 18:52:59 2012 +0100
@@ -200,9 +200,25 @@
         $ch = curl_init();
         curl_setopt($ch, CURLOPT_URL, $url);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
-        //TODO: change
-        curl_setopt($ch, CURLOPT_USERAGENT, 'http://www.iri.centrepompidou.fr');
+        // default values
+        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:10.0.1) Gecko/20100101 Firefox/10.0.1');
         curl_setopt($ch, CURLOPT_TIMEOUT_MS, 5000);
+        // Set options if they are set in the config.yml file, typically for proxy configuration.
+        // Thanks to the configuration file, it will execute commands like "curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);" or "curl_setopt($ch, CURLOPT_PROXY, "xxx.yyy.zzz:PORT");"
+        $curl_options = $GLOBALS["kernel"]->getContainer()->getParameter("wiki_tag.curl_options");
+        foreach ($curl_options as $key => $value) {
+            if(strtoupper($value)=='TRUE'){
+                $value = TRUE;
+            }
+            else if (strtoupper($value)=='FALSE'){
+                $value = FALSE;
+            }
+            else if (defined($value)){
+                $value = constant($value);
+            }
+            curl_setopt($ch, constant($key), $value);
+        }
+        // end of treatment
         $res = curl_exec($ch);
         $curl_errno = curl_errno($ch);
         $curl_error = curl_error($ch);