update_rss_feed: bailout if cache is considered valid, but older than last_updated

[tt-rss.git] / image.php

diff --git a/image.php b/image.php
index 3a2a0d1c583b6cc30facfd866317bb43ac9f3186..36da375aabbde9e4055027f2bb9ba3999b349649 100644 (file)
--- a/image.php
+++ b/image.php
@@ -1,9 +1,40 @@
 <?php
-       set_include_path(get_include_path() . PATH_SEPARATOR . 
-               dirname(__FILE__) . "/include");
+       set_include_path(dirname(__FILE__) ."/include" . PATH_SEPARATOR .
+               get_include_path());
 
        require_once "config.php";
-       require_once "lib/simplepie/simplepie.inc";
 
-       SimplePie_Misc::display_cached_file($_GET['i'], SIMPLEPIE_CACHE_DIR, 'spi');
+       // backwards compatible wrapper for old-style image caching
+       /* if (isset($_GET['url'])) {
+               $url = base64_decode($_GET['url']);
+
+               $filename = CACHE_DIR . '/images/' . sha1($url) . '.png';
+
+               if (file_exists($filename)) {
+                       header("Content-type: image/png");
+                       echo file_get_contents($filename);
+               } else {
+                       header("Location: $url");
+               }
+
+               return;
+       } */
+
+       @$hash = basename($_GET['hash']);
+
+       if ($hash) {
+
+               $filename = CACHE_DIR . '/images/' . $hash . '.png';
+
+               if (file_exists($filename)) {
+                       header("Content-type: image/png");
+                       $stamp = gmdate("D, d M Y H:i:s", filemtime($filename)). " GMT";
+                       header("Last-Modified: $stamp", true);
+                       echo file_get_contents($filename);
+               } else {
+                       header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
+                       echo "File not found.";
+               }
+       }
+
 ?>