fbpost: New permissions required for reading all wall posts.

[friendica-addons.git] / privacy_image_cache / privacy_image_cache.php

diff --git a/privacy_image_cache/privacy_image_cache.php b/privacy_image_cache/privacy_image_cache.php
index a47f0e1ac5294b7aa0cf405ed619afa4655f79f9..0e241e7e36825b8aea73635b30aa5fdb396c05cf 100644 (file)
--- a/privacy_image_cache/privacy_image_cache.php
+++ b/privacy_image_cache/privacy_image_cache.php
@@ -119,7 +119,17 @@ function privacy_image_cache_init() {
                // It shouldn't happen but it does - spaces in URL
                $_REQUEST['url'] = str_replace(" ", "+", $_REQUEST['url']);
 
-               $img_str = fetch_url($_REQUEST['url'],true);
+               // if the picture seems to be from another picture cache then take the original source
+               $queryvar = privacy_image_cache_parse_query($_REQUEST['url']);
+               if ($queryvar['url'] != "")
+                       $_REQUEST['url'] = urldecode($queryvar['url']);
+
+               // if fetching facebook pictures don't fetch the thumbnail but the big one
+               if (strpos($_REQUEST['url'], ".fbcdn.net/") and (substr($_REQUEST['url'], -6) == "_s.jpg"))
+                       $_REQUEST['url'] = substr($_REQUEST['url'], 0, -6)."_n.jpg";
+
+               $redirects = 0;
+               $img_str = fetch_url($_REQUEST['url'],true, $redirects, 10);
 
                $tempfile = tempnam(get_config("system","temppath"), "cache");
                file_put_contents($tempfile, $img_str);
@@ -132,9 +142,9 @@ function privacy_image_cache_init() {
                        $mime = "image/png";
                        $cachefile = ""; // Clear the cachefile so that the dummy isn't stored
                        $valid = false;
-                       $img = new Photo($img_str);
+                       $img = new Photo($img_str, "image/png");
                        if($img->is_valid()) {
-                               $img->scaleImage(1);
+                               $img->scaleImage(10);
                                $img_str = $img->imageString();
                        }
                //} else if (substr($img_str, 0, 6) == "GIF89a") {
@@ -226,13 +236,21 @@ function privacy_image_cache_cachename($url, $writemode = false) {
  * @return boolean
  */
 function privacy_image_cache_is_local_image($url) {
-    if ($url[0] == '/') return true;
+       if ($url[0] == '/') return true;
+
        if (strtolower(substr($url, 0, 5)) == "data:") return true;
 
+       // Check if the cached path would be longer than 255 characters - apache doesn't like it
+       if (is_dir($_SERVER["DOCUMENT_ROOT"]."/privacy_image_cache")) {
+               $cachedurl = get_app()->get_baseurl()."/privacy_image_cache/". privacy_image_cache_cachename($url);
+               if (strlen($url) > 255)
+                       return true;
+       }
+
        // links normalised - bug #431
-    $baseurl = normalise_link(get_app()->get_baseurl());
+       $baseurl = normalise_link(get_app()->get_baseurl());
        $url = normalise_link($url);
-    return (substr($url, 0, strlen($baseurl)) == $baseurl);
+       return (substr($url, 0, strlen($baseurl)) == $baseurl);
 }
 
 /**
@@ -311,13 +329,11 @@ function privacy_image_cache_cron(&$a = null, &$b = null) {
 
     logger("Purging old Cache of the Privacy Image Cache", LOGGER_DEBUG);
     q('DELETE FROM `photo` WHERE `uid` = 0 AND `resource-id` LIKE "pic:%%" AND `created` < NOW() - INTERVAL %d SECOND', $cachetime);
-    set_config('pi_cache', 'last_delete', $time);
 
     clear_cache($a->get_basepath(), $a->get_basepath()."/privacy_image_cache");
-}
-
-
 
+    set_config('pi_cache', 'last_delete', $time);
+}
 
 /**
  * @param App $a
@@ -364,3 +380,22 @@ function privacy_image_cache_plugin_admin_post(&$a = null, &$o = null){
         q('DELETE FROM `photo` WHERE `uid` = 0 AND `resource-id` LIKE "pic:%%"');
     }
 }
+
+function privacy_image_cache_parse_query($var) {
+       /**
+        *  Use this function to parse out the query array element from
+        *  the output of parse_url().
+       */
+       $var  = parse_url($var, PHP_URL_QUERY);
+       $var  = html_entity_decode($var);
+       $var  = explode('&', $var);
+       $arr  = array();
+
+       foreach($var as $val) {
+               $x          = explode('=', $val);
+               $arr[$x[0]] = $x[1];
+       }
+
+       unset($val, $x, $var);
+       return $arr;
+}