From 3e0ef647a370f98aa638a7163730d4a7ffdfed5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20SAUVAGE?= <sebsauvage@sebsauvage.net>
Date: Thu, 28 Feb 2013 14:48:11 +0100
Subject: [PATCH] RSS patch for Thunderbird (and some RSS clients).

In the RSS specifications, the "link" tags contains the URL to follow,
and the "guid" contains a unique identifier (which may or may not be an
URL).
RSS clients should always use "link" to follow the link (and most do),
but Thunderbird uses the "guid" if it find a valid URL inside (and only
falls back to "link" if "guid" is not an URL).

I have patched the RSS feed so that Thunderbird ignores the URL in guid.
---
 index.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.php b/index.php
index d66da41..afe2d03 100644
--- a/index.php
+++ b/index.php
@@ -904,9 +904,9 @@ function showRSS()
         $absurl = htmlspecialchars($link['url']);
         if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl;  // make permalink URL absolute
         if ($usepermalinks===true)
-            echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid>'.$guid.'</guid><link>'.$guid.'</link>';
+            echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$guid.'</link>';
         else
-            echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid>'.$guid.'</guid><link>'.$absurl.'</link>';
+            echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>';
         if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.htmlspecialchars($rfc822date)."</pubDate>\n";
         if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification)
         {