X-Git-Url: https://git.ao2.it/GM_direct_download_links.git/blobdiff_plain/1b53269ee66fbdba093c562eec82f976d3c0f632..5acbbffe01cfc5d603dbfc5177b092a879286a75:/direct_download_links.user.js

diff --git a/direct_download_links.user.js b/direct_download_links.user.js
index eac46c9..d430887 100644
--- a/direct_download_links.user.js
+++ b/direct_download_links.user.js
@@ -62,6 +62,11 @@
  *              targetElement: the element in the event handler we want the
  *                urlRegexp is performed on.
  *
+ *  processURL: a function to process the URL before adding the Direct
+ *              Downdload Link to the page, it must accept  a 'site' and a
+ *              'URL' parameters and dispatch the UrlFetched to pass the
+ *              modified URL to _add_link().
+ *
  */
 var supported_sites = [
   {
@@ -93,6 +98,7 @@ var supported_sites = [
     urlContainer: 'Player',
     urlRegexp: /mediaUri=(http:\/\/[^,]*)/,
     onEvent: { evt: 'DOMNodeInserted', targetElement: 'object' },
+    processURL: _rai_get_actual_url,
     linkDest: 'Player',
   },
 ];
@@ -103,10 +109,7 @@ for (i = 0; i < supported_sites.length; i++) {
 
   var result = window.location.href.match(site.locationRegexp);
   if (result) {
-    var ret = direct_download_link_add(window.location.href, site);
-    if (!ret) {
-      DDL_log('Cannot add the link');
-    }
+    direct_download_link_add(window.location.href, site);
   }
 }
 
@@ -124,6 +127,8 @@ function direct_download_link_add(pageURL, site) {
     return null;
   }
 
+  document.addEventListener('UrlFetched', _add_link, true);
+
   // This is used for sites adding the URL to the DOM after DOMContentLoaded,
   // for example by some javascript library (like Silverlight.js on rai.tv).
   if (site.onEvent) {
@@ -133,44 +138,51 @@ function direct_download_link_add(pageURL, site) {
         DDL_log('DirectDL (' + site.pageURL  + '): skipping element ' + e.target.tagName);
         return;
       }
-    var URL = _get_URL(site, element);
-    return _add_link(site, URL);
+     _get_URL(site, element);
     }, false);
-    return true;
   }
 
-  var URL = _get_URL(site, element);
-  if (!URL) {
-    DDL_log('DirectDL (' + site.pageURL + '): cannot get the URL.');
-    return null;
-  }
-
-  return _add_link(site, URL);
+  _get_URL(site, element);
 }
 
 function _get_URL(site, element) {
   var content = element.innerHTML;
   if (!content) {
     DDL_log('DirectDL (' + site.pageURL + '): content is null, cannot find URL.');
-    return null;
+    return;
   }
 
   var matches = content.match(site.urlRegexp);
   if (!matches || matches.length < 2 || !matches[1]) {
       DDL_log('DirectDL (' + site.pageURL + '): URL not found, check the urlRegexp');
-      return null;
+      return;
   }
   var URL = matches[1];
+  if (!URL) {
+    DDL_log('DirectDL (' + site.pageURL + '): cannot get the URL.');
+    return;
+  }
 
-  return URL;
+  if (site.processURL) {
+    site.processURL(site, URL);
+    return;
+  }
+
+  var evt = document.createEvent('Event');  
+  evt.initEvent('UrlFetched', true, true);  
+  evt.site = site;
+  evt.URL = URL;
+  document.dispatchEvent(evt);
 }
 
-function _add_link(site, URL) {
+function _add_link(e) {
+  var site = e.site;
+  var URL = e.URL;;
 
-  var links = document.getElementById(site.linkDest);
-  if (!links) {
+  var destination = document.getElementById(site.linkDest);
+  if (!destination) {
     DDL_log('DirectDl (' + site.pageURL + '): Cannot add the direct download link.');
-    return null;
+    return;
   }
 
   var download_link = document.createElement('a');
@@ -182,9 +194,7 @@ function _add_link(site, URL) {
   style += ' padding: .5em; margin: 1em;'
   download_link.setAttribute('style', style);
 
-  links.insertBefore(download_link, links.firstChild);
-
-  return true;
+  destination.insertBefore(download_link, destination.firstChild);
 }
 
 function DDL_log(message) {
@@ -195,3 +205,33 @@ function DDL_log(message) {
     GM_log(message);
   }
 }
+
+function _rai_get_actual_url(site, URL) {
+  // http://www.neaveru.com/wordpress/index.php/2008/05/09/greasemonkey-bug-domnodeinserted-event-doesnt-allow-gm_xmlhttprequest/
+  setTimeout( function() {
+    GM_xmlhttpRequest({
+      method: "GET",
+      // XXX A custom header. This is the "clever" trick Rai uses to ensure
+      // the content is accessed by www.rai.tv only...
+      headers: {'viaurl': 'www.rai.tv'},
+      url: URL,
+      onload: function(response) {
+        text = response.responseText;
+        text = text.replace(/&/g, '&amp;')
+        parser = new DOMParser();
+        xmlDoc = parser.parseFromString(text, "text/xml");
+
+        ref = xmlDoc.getElementsByTagName('REF');
+        if (ref.length > 0) {
+          href = ref[0].getAttribute('HREF');;
+
+          var evt = document.createEvent('Event');  
+          evt.initEvent('UrlFetched', true, true);  
+          evt.site = site;
+          evt.URL = href;
+          document.dispatchEvent(evt);
+        }
+      }
+    });
+  }, 0);
+}