+ * {@inheritDoc}
+ */
+ public function finalUrl(string $url, int $depth = 1, bool $fetchbody = false)
+ {
+ $url = Network::stripTrackingQueryParams($url);
+
+ if ($depth > 10) {
+ return $url;
+ }
+
+ $url = trim($url, "'");
+
+ $stamp1 = microtime(true);
+
+ $ch = curl_init();
+ curl_setopt($ch, CURLOPT_URL, $url);
+ curl_setopt($ch, CURLOPT_HEADER, 1);
+ curl_setopt($ch, CURLOPT_NOBODY, 1);
+ curl_setopt($ch, CURLOPT_TIMEOUT, 10);
+ curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+ curl_setopt($ch, CURLOPT_USERAGENT, $this->getUserAgent());
+
+ curl_exec($ch);
+ $curl_info = @curl_getinfo($ch);
+ $http_code = $curl_info['http_code'];
+ curl_close($ch);
+
+ $this->profiler->saveTimestamp($stamp1, "network");
+
+ if ($http_code == 0) {
+ return $url;
+ }
+
+ if (in_array($http_code, ['301', '302'])) {
+ if (!empty($curl_info['redirect_url'])) {
+ return $this->finalUrl($curl_info['redirect_url'], ++$depth, $fetchbody);
+ } elseif (!empty($curl_info['location'])) {
+ return $this->finalUrl($curl_info['location'], ++$depth, $fetchbody);
+ }
+ }
+
+ // Check for redirects in the meta elements of the body if there are no redirects in the header.
+ if (!$fetchbody) {
+ return $this->finalUrl($url, ++$depth, true);
+ }
+
+ // if the file is too large then exit
+ if ($curl_info["download_content_length"] > 1000000) {
+ return $url;
+ }
+
+ // if it isn't a HTML file then exit
+ if (!empty($curl_info["content_type"]) && !strstr(strtolower($curl_info["content_type"]), "html")) {
+ return $url;
+ }
+
+ $stamp1 = microtime(true);
+
+ $ch = curl_init();
+ curl_setopt($ch, CURLOPT_URL, $url);
+ curl_setopt($ch, CURLOPT_HEADER, 0);
+ curl_setopt($ch, CURLOPT_NOBODY, 0);
+ curl_setopt($ch, CURLOPT_TIMEOUT, 10);
+ curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+ curl_setopt($ch, CURLOPT_USERAGENT, $this->getUserAgent());
+
+ $body = curl_exec($ch);
+ curl_close($ch);
+
+ $this->profiler->saveTimestamp($stamp1, "network");
+
+ if (trim($body) == "") {
+ return $url;
+ }
+
+ // Check for redirect in meta elements
+ $doc = new DOMDocument();
+ @$doc->loadHTML($body);
+
+ $xpath = new DomXPath($doc);
+
+ $list = $xpath->query("//meta[@content]");
+ foreach ($list as $node) {
+ $attr = [];
+ if ($node->attributes->length) {
+ foreach ($node->attributes as $attribute) {
+ $attr[$attribute->name] = $attribute->value;
+ }
+ }
+
+ if (@$attr["http-equiv"] == 'refresh') {
+ $path = $attr["content"];
+ $pathinfo = explode(";", $path);
+ foreach ($pathinfo as $value) {
+ if (substr(strtolower($value), 0, 4) == "url=") {
+ return $this->finalUrl(substr($value, 4), ++$depth);
+ }
+ }
+ }
+ }
+
+ return $url;
+ }
+
+ /**
+ * {@inheritDoc}