return false;
}
- function sanitize($str, $force_remove_images = false, $owner = false, $site_url = false, $highlight_words = false, $article_id = false) {
- if (!$owner) $owner = $_SESSION["uid"];
-
- $res = trim($str); if (!$res) return '';
+ // check for locally cached (media) URLs and rewrite to local versions
+ // this is called separately after sanitize() and plugin render article hooks to allow
+ // plugins work on original source URLs used before caching
+ function rewrite_cached_urls($str) {
$charset_hack = '<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>';
- $res = trim($res); if (!$res) return '';
-
- libxml_use_internal_errors(true);
+ $res = trim($str); if (!$res) return '';
$doc = new DOMDocument();
$doc->loadHTML($charset_hack . $res);
$xpath = new DOMXPath($doc);
- $rewrite_base_url = $site_url ? $site_url : get_self_url_prefix();
+ $entries = $xpath->query('(//img[@src]|//video/source[@src]|//audio/source[@src])');
- $entries = $xpath->query('(//a[@href]|//img[@src]|//video/source[@src]|//audio/source[@src])');
+ $need_saving = false;
foreach ($entries as $entry) {
- if ($entry->hasAttribute('href')) {
- $entry->setAttribute('href',
- rewrite_relative_url($rewrite_base_url, $entry->getAttribute('href')));
-
- $entry->setAttribute('rel', 'noopener noreferrer');
- }
-
if ($entry->hasAttribute('src')) {
- $src = rewrite_relative_url($rewrite_base_url, $entry->getAttribute('src'));
+
+ // should be already absolutized because this is called after sanitize()
+ $src = $entry->getAttribute('src');
$cached_filename = CACHE_DIR . '/images/' . sha1($src);
if (file_exists($cached_filename)) {
$src = get_self_url_prefix() . '/public.php?op=cached_url&hash=' . sha1($src) . $suffix;
- if ($entry->hasAttribute('srcset')) {
- $entry->removeAttribute('srcset');
- }
-
- if ($entry->hasAttribute('sizes')) {
- $entry->removeAttribute('sizes');
- }
+ $entry->setAttribute('src', $src);
+ $need_saving = true;
}
+ }
+ }
+
+ if ($need_saving) {
+ $doc->removeChild($doc->firstChild); //remove doctype
+ $res = $doc->saveHTML();
+ }
+
+ return $res;
+ }
+
+ function sanitize($str, $force_remove_images = false, $owner = false, $site_url = false, $highlight_words = false, $article_id = false) {
+ if (!$owner) $owner = $_SESSION["uid"];
+
+ $res = trim($str); if (!$res) return '';
+
+ $charset_hack = '<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+ </head>';
+
+ $res = trim($res); if (!$res) return '';
+
+ libxml_use_internal_errors(true);
+
+ $doc = new DOMDocument();
+ $doc->loadHTML($charset_hack . $res);
+ $xpath = new DOMXPath($doc);
+
+ $rewrite_base_url = $site_url ? $site_url : get_self_url_prefix();
+
+ $entries = $xpath->query('(//a[@href]|//img[@src]|//video/source[@src]|//audio/source[@src])');
+
+ foreach ($entries as $entry) {
+
+ if ($entry->hasAttribute('href')) {
+ $entry->setAttribute('href',
+ rewrite_relative_url($rewrite_base_url, $entry->getAttribute('href')));
+
+ $entry->setAttribute('rel', 'noopener noreferrer');
+ }
+
+ if ($entry->hasAttribute('src')) {
+ $src = rewrite_relative_url($rewrite_base_url, $entry->getAttribute('src'));
+
+ // cache stuff has gone to rewrite_cached_urls()
$entry->setAttribute('src', $src);
}
}
$mimetype = mime_content_type($filename);
+
+ // this is hardly ideal but 1) only media is cached in images/ and 2) seemingly only mp4
+ // video files are detected as octet-stream by mime_content_type()
+
+ if ($mimetype == "application/octet-stream")
+ $mimetype = "video/mp4";
+
header("Content-type: $mimetype");
$stamp = gmdate("D, d M Y H:i:s", filemtime($filename)) . " GMT";
header("Last-Modified: $stamp", true);
- return readfile($filename);
+ if (defined('_NGINX_XACCEL_PREFIX') && _NGINX_XACCEL_PREFIX) {
+ header("X-Accel-Redirect: " . _NGINX_XACCEL_PREFIX . "/" . $filename);
+
+ return false;
+ } else {
+ return readfile($filename);
+ }
} else {
return false;
}
git.wh0rd.org / tt-rss.git / blobdiff