]> git.mxchange.org Git - friendica-addons.git/blobdiff - privacy_image_cache/privacy_image_cache.php
Merge remote branch 'upstream/master'
[friendica-addons.git] / privacy_image_cache / privacy_image_cache.php
index f179a7ba21ab55bb1ccb4f7d08f42ff83c2bf3e7..8c68ef9a4bf555a3b7f2d92151c8cdfa363c7594 100644 (file)
@@ -11,7 +11,8 @@ define("PRIVACY_IMAGE_CACHE_DEFAULT_TIME", 86400); // 1 Day
 require_once('include/security.php');
 
 function privacy_image_cache_install() {
-    register_hook('bbcode',       'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_bbcode_hook');
+    register_hook('prepare_body', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_prepare_body_hook');
+ //   register_hook('bbcode',       'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_bbcode_hook');
     register_hook('display_item', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_display_item_hook');
     register_hook('ping_xmlize',  'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_ping_xmlize_hook');
     register_hook('cron',         'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_cron');
@@ -19,6 +20,7 @@ function privacy_image_cache_install() {
 
 
 function privacy_image_cache_uninstall() {
+    unregister_hook('prepare_body', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_prepare_body_hook');
     unregister_hook('bbcode',       'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_bbcode_hook');
     unregister_hook('display_item', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_display_item_hook');
     unregister_hook('ping_xmlize',  'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_ping_xmlize_hook');
@@ -30,19 +32,78 @@ function privacy_image_cache_module() {}
 
 
 function privacy_image_cache_init() {
-    $urlhash = 'pic:' . sha1($_REQUEST['url']);
-    $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' LIMIT 1", $urlhash );
-    if (count($r)) {
-        $img_str = $r[0]['data'];
+       global $a;
+
+       if ($a->config["system"]["db_log"] != "")
+               $stamp1 = microtime(true);
+
+       if(function_exists('header_remove')) {
+               header_remove('Pragma');
+               header_remove('pragma');
+       }
+
+       $urlhash = 'pic:' . sha1($_REQUEST['url']);
+       // Double encoded url - happens with Diaspora
+       $urlhash2 = 'pic:' . sha1(urldecode($_REQUEST['url']));
+
+       $cache = get_config('system','itemcache');
+       if (($cache != '') and is_dir($cache)) {
+               $cachefile = $cache."/".hash("md5", $_REQUEST['url']);
+               if (file_exists($cachefile)) {
+                       $img_str = file_get_contents($cachefile);
+
+                       $mime = image_type_to_mime_type(exif_imagetype($cachefile));
+
+                       header("Content-type: $mime");
+                       header("Expires: " . gmdate("D, d M Y H:i:s", time() + (3600*24)) . " GMT");
+                       header("Cache-Control: max-age=" . (3600*24));
+
+                       echo $img_str;
+
+                       if ($a->config["system"]["db_log"] != "") {
+                               $stamp2 = microtime(true);
+                               $duration = round($stamp2-$stamp1, 3);
+                               if ($duration > $a->config["system"]["db_loglimit"])
+                                       @file_put_contents($a->config["system"]["db_log"], $duration."\t".strlen($img_str)."\t".$_REQUEST['url']."\n", FILE_APPEND);
+                       }
+
+                       killme();
+               }
+       }
+
+       require_once("Photo.php");
+
+       $r = q("SELECT * FROM `photo` WHERE `resource-id` in ('%s', '%s') LIMIT 1", $urlhash, $urlhash2);
+       if (count($r)) {
+               $img_str = $r[0]['data'];
                $mime = $r[0]["desc"];
                if ($mime == "") $mime = "image/jpeg";
-    }
-    else {
-        require_once("Photo.php");
 
-        $img_str = fetch_url($_REQUEST['url'],true);
-               if (substr($img_str, 0, 6) == "GIF89a") {
-                       $mime = "image/gif";
+               // Test
+               //if ($mime == "image/jpeg") {
+               //      $img = new Photo($img_str);
+               //      if($img->is_valid()) {
+               //              $img->scaleImage(1000);
+               //              $img_str = $img->imageString();
+               //      }
+               //}
+       } else {
+               // It shouldn't happen but it does - spaces in URL
+               $_REQUEST['url'] = str_replace(" ", "+", $_REQUEST['url']);
+
+               $img_str = fetch_url($_REQUEST['url'],true);
+
+               $tempfile = tempnam("", "cache");
+               file_put_contents($tempfile, $img_str);
+               $mime = image_type_to_mime_type(exif_imagetype($tempfile));
+               unlink($tempfile);
+
+               // If there is an error then return a blank image
+               if ((substr($a->get_curl_code(), 0, 1) == "4") or (!$img_str)) {
+                       $img_str = file_get_contents("images/blank.png");
+                       $mime = "image/png";
+               //} else if (substr($img_str, 0, 6) == "GIF89a") {
+               } else if ($mime != "image/jpeg") {
                        $image = @imagecreatefromstring($img_str);
 
                        if($image === FALSE) die();
@@ -57,7 +118,7 @@ function privacy_image_cache_init() {
                                dbesc(''),
                                intval(imagesy($image)),
                                intval(imagesx($image)),
-                               'image/gif',
+                               $mime,
                                dbesc($img_str),
                                100,
                                intval(0),
@@ -68,20 +129,31 @@ function privacy_image_cache_init() {
                        $img = new Photo($img_str);
                        if($img->is_valid()) {
                                $img->store(0, 0, $urlhash, $_REQUEST['url'], '', 100);
+                               //$img->scaleImage(1000); // Test
                                $img_str = $img->imageString();
                        }
                        $mime = "image/jpeg";
                }
-    }
+       }
+
+       // Writing in cachefile
+       if (isset($cachefile) && ($cachefile != '') and (exif_imagetype($cachefile) > 0))
+               file_put_contents($cachefile, $img_str);
 
+       header("Content-type: $mime");
+       header("Expires: " . gmdate("D, d M Y H:i:s", time() + (3600*24)) . " GMT");
+       header("Cache-Control: max-age=" . (3600*24));
 
-    header("Content-type: $mime");
-    header("Expires: " . gmdate("D, d M Y H:i:s", time() + (3600*24)) . " GMT");
-    header("Cache-Control: max-age=" . (3600*24));
+       echo $img_str;
 
-    echo $img_str;
+       if ($a->config["system"]["db_log"] != "") {
+               $stamp2 = microtime(true);
+               $duration = round($stamp2-$stamp1, 3);
+               if ($duration > $a->config["system"]["db_loglimit"])
+                       @file_put_contents($a->config["system"]["db_log"], $duration."\t".strlen($img_str)."\t".$_REQUEST['url']."\n", FILE_APPEND);
+       }
 
-    killme();
+       killme();
 }
 
 /**
@@ -90,6 +162,8 @@ function privacy_image_cache_init() {
  */
 function privacy_image_cache_is_local_image($url) {
     if ($url[0] == '/') return true;
+       if (strtolower(substr($url, 0, 5)) == "data:") return true;
+
        // links normalised - bug #431
     $baseurl = normalise_link(get_app()->get_baseurl());
        $url = normalise_link($url);
@@ -102,16 +176,27 @@ function privacy_image_cache_is_local_image($url) {
  */
 function privacy_image_cache_img_cb($matches) {
        // following line changed per bug #431
-    if (privacy_image_cache_is_local_image($matches[2])) return $matches[1] . $matches[2] . $matches[3];
-    return $matches[1] . get_app()->get_baseurl() . "/privacy_image_cache/?url=" . escape_tags(addslashes(rawurlencode($matches[2]))) . $matches[3];
+       if (privacy_image_cache_is_local_image($matches[2]))
+               return $matches[1] . $matches[2] . $matches[3];
+
+       return $matches[1] . get_app()->get_baseurl() . "/privacy_image_cache/?url=" . addslashes(rawurlencode(htmlspecialchars_decode($matches[2]))) . $matches[3];
+}
+
+/**
+ * @param App $a
+ * @param string $o
+ */
+function privacy_image_cache_prepare_body_hook(&$a, &$o) {
+       $o["html"] = preg_replace_callback("/(<img [^>]*src *= *[\"'])([^\"']+)([\"'][^>]*>)/siU", "privacy_image_cache_img_cb", $o["html"]);
 }
 
 /**
  * @param App $a
  * @param string $o
+ * Function disabled because the plugin moved
  */
 function privacy_image_cache_bbcode_hook(&$a, &$o) {
-    $o = preg_replace_callback("/(<img [^>]*src *= *[\"'])([^\"']+)([\"'][^>]*>)/siU", "privacy_image_cache_img_cb", $o);
+       //$o = preg_replace_callback("/(<img [^>]*src *= *[\"'])([^\"']+)([\"'][^>]*>)/siU", "privacy_image_cache_img_cb", $o);
 }
 
 
@@ -203,4 +288,4 @@ function privacy_image_cache_plugin_admin_post(&$a = null, &$o = null){
     if (isset($_REQUEST['delete_all'])) {
         q('DELETE FROM `photo` WHERE `uid` = 0 AND `resource-id` LIKE "pic:%%"');
     }
-}
\ No newline at end of file
+}