--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/SimplePie/src/Locator.php Fri Sep 05 18:52:52 2025 +0200
@@ -0,0 +1,369 @@
+<?php
+
+/**
+ * SimplePie
+ *
+ * A PHP-Based RSS and Atom Feed Framework.
+ * Takes the hard work out of managing a complete RSS/Atom solution.
+ *
+ * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * * Neither the name of the SimplePie Team nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
+ * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package SimplePie
+ * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
+ * @author Ryan Parman
+ * @author Sam Sneddon
+ * @author Ryan McCue
+ * @link http://simplepie.org/ SimplePie
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ */
+
+namespace SimplePie;
+
+/**
+ * Used for feed auto-discovery
+ *
+ *
+ * This class can be overloaded with {@see \SimplePie\SimplePie::set_locator_class()}
+ *
+ * @package SimplePie
+ */
+class Locator implements RegistryAware
+{
+ public $useragent;
+ public $timeout;
+ public $file;
+ public $local = [];
+ public $elsewhere = [];
+ public $cached_entities = [];
+ public $http_base;
+ public $base;
+ public $base_location = 0;
+ public $checked_feeds = 0;
+ public $max_checked_feeds = 10;
+ public $force_fsockopen = false;
+ public $curl_options = [];
+ public $dom;
+ protected $registry;
+
+ public function __construct(\SimplePie\File $file, $timeout = 10, $useragent = null, $max_checked_feeds = 10, $force_fsockopen = false, $curl_options = [])
+ {
+ $this->file = $file;
+ $this->useragent = $useragent;
+ $this->timeout = $timeout;
+ $this->max_checked_feeds = $max_checked_feeds;
+ $this->force_fsockopen = $force_fsockopen;
+ $this->curl_options = $curl_options;
+
+ if (class_exists('DOMDocument') && $this->file->body != '') {
+ $this->dom = new \DOMDocument();
+
+ set_error_handler(['SimplePie\Misc', 'silence_errors']);
+ try {
+ $this->dom->loadHTML($this->file->body);
+ } catch (\Throwable $ex) {
+ $this->dom = null;
+ }
+ restore_error_handler();
+ } else {
+ $this->dom = null;
+ }
+ }
+
+ public function set_registry(\SimplePie\Registry $registry)/* : void */
+ {
+ $this->registry = $registry;
+ }
+
+ public function find($type = \SimplePie\SimplePie::LOCATOR_ALL, &$working = null)
+ {
+ if ($this->is_feed($this->file)) {
+ return $this->file;
+ }
+
+ if ($this->file->method & \SimplePie\SimplePie::FILE_SOURCE_REMOTE) {
+ $sniffer = $this->registry->create(Content\Type\Sniffer::class, [$this->file]);
+ if ($sniffer->get_type() !== 'text/html') {
+ return null;
+ }
+ }
+
+ if ($type & ~\SimplePie\SimplePie::LOCATOR_NONE) {
+ $this->get_base();
+ }
+
+ if ($type & \SimplePie\SimplePie::LOCATOR_AUTODISCOVERY && $working = $this->autodiscovery()) {
+ return $working[0];
+ }
+
+ if ($type & (\SimplePie\SimplePie::LOCATOR_LOCAL_EXTENSION | \SimplePie\SimplePie::LOCATOR_LOCAL_BODY | \SimplePie\SimplePie::LOCATOR_REMOTE_EXTENSION | \SimplePie\SimplePie::LOCATOR_REMOTE_BODY) && $this->get_links()) {
+ if ($type & \SimplePie\SimplePie::LOCATOR_LOCAL_EXTENSION && $working = $this->extension($this->local)) {
+ return $working[0];
+ }
+
+ if ($type & \SimplePie\SimplePie::LOCATOR_LOCAL_BODY && $working = $this->body($this->local)) {
+ return $working[0];
+ }
+
+ if ($type & \SimplePie\SimplePie::LOCATOR_REMOTE_EXTENSION && $working = $this->extension($this->elsewhere)) {
+ return $working[0];
+ }
+
+ if ($type & \SimplePie\SimplePie::LOCATOR_REMOTE_BODY && $working = $this->body($this->elsewhere)) {
+ return $working[0];
+ }
+ }
+ return null;
+ }
+
+ public function is_feed($file, $check_html = false)
+ {
+ if ($file->method & \SimplePie\SimplePie::FILE_SOURCE_REMOTE) {
+ $sniffer = $this->registry->create(Content\Type\Sniffer::class, [$file]);
+ $sniffed = $sniffer->get_type();
+ $mime_types = ['application/rss+xml', 'application/rdf+xml',
+ 'text/rdf', 'application/atom+xml', 'text/xml',
+ 'application/xml', 'application/x-rss+xml'];
+ if ($check_html) {
+ $mime_types[] = 'text/html';
+ }
+
+ return in_array($sniffed, $mime_types);
+ } elseif ($file->method & \SimplePie\SimplePie::FILE_SOURCE_LOCAL) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ public function get_base()
+ {
+ if ($this->dom === null) {
+ throw new \SimplePie\Exception('DOMDocument not found, unable to use locator');
+ }
+ $this->http_base = $this->file->url;
+ $this->base = $this->http_base;
+ $elements = $this->dom->getElementsByTagName('base');
+ foreach ($elements as $element) {
+ if ($element->hasAttribute('href')) {
+ $base = $this->registry->call(Misc::class, 'absolutize_url', [trim($element->getAttribute('href')), $this->http_base]);
+ if ($base === false) {
+ continue;
+ }
+ $this->base = $base;
+ $this->base_location = method_exists($element, 'getLineNo') ? $element->getLineNo() : 0;
+ break;
+ }
+ }
+ }
+
+ public function autodiscovery()
+ {
+ $done = [];
+ $feeds = [];
+ $feeds = array_merge($feeds, $this->search_elements_by_tag('link', $done, $feeds));
+ $feeds = array_merge($feeds, $this->search_elements_by_tag('a', $done, $feeds));
+ $feeds = array_merge($feeds, $this->search_elements_by_tag('area', $done, $feeds));
+
+ if (!empty($feeds)) {
+ return array_values($feeds);
+ }
+
+ return null;
+ }
+
+ protected function search_elements_by_tag($name, &$done, $feeds)
+ {
+ if ($this->dom === null) {
+ throw new \SimplePie\Exception('DOMDocument not found, unable to use locator');
+ }
+
+ $links = $this->dom->getElementsByTagName($name);
+ foreach ($links as $link) {
+ if ($this->checked_feeds === $this->max_checked_feeds) {
+ break;
+ }
+ if ($link->hasAttribute('href') && $link->hasAttribute('rel')) {
+ $rel = array_unique($this->registry->call(Misc::class, 'space_separated_tokens', [strtolower($link->getAttribute('rel'))]));
+ $line = method_exists($link, 'getLineNo') ? $link->getLineNo() : 1;
+
+ if ($this->base_location < $line) {
+ $href = $this->registry->call(Misc::class, 'absolutize_url', [trim($link->getAttribute('href')), $this->base]);
+ } else {
+ $href = $this->registry->call(Misc::class, 'absolutize_url', [trim($link->getAttribute('href')), $this->http_base]);
+ }
+ if ($href === false) {
+ continue;
+ }
+
+ if (!in_array($href, $done) && in_array('feed', $rel) || (in_array('alternate', $rel) && !in_array('stylesheet', $rel) && $link->hasAttribute('type') && in_array(strtolower($this->registry->call(Misc::class, 'parse_mime', [$link->getAttribute('type')])), ['text/html', 'application/rss+xml', 'application/atom+xml'])) && !isset($feeds[$href])) {
+ $this->checked_feeds++;
+ $headers = [
+ 'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
+ ];
+ $feed = $this->registry->create(File::class, [$href, $this->timeout, 5, $headers, $this->useragent, $this->force_fsockopen, $this->curl_options]);
+ if ($feed->success && ($feed->method & \SimplePie\SimplePie::FILE_SOURCE_REMOTE === 0 || ($feed->status_code === 200 || $feed->status_code > 206 && $feed->status_code < 300)) && $this->is_feed($feed, true)) {
+ $feeds[$href] = $feed;
+ }
+ }
+ $done[] = $href;
+ }
+ }
+
+ return $feeds;
+ }
+
+ public function get_links()
+ {
+ if ($this->dom === null) {
+ throw new \SimplePie\Exception('DOMDocument not found, unable to use locator');
+ }
+
+ $links = $this->dom->getElementsByTagName('a');
+ foreach ($links as $link) {
+ if ($link->hasAttribute('href')) {
+ $href = trim($link->getAttribute('href'));
+ $parsed = $this->registry->call(Misc::class, 'parse_url', [$href]);
+ if ($parsed['scheme'] === '' || preg_match('/^(https?|feed)?$/i', $parsed['scheme'])) {
+ if (method_exists($link, 'getLineNo') && $this->base_location < $link->getLineNo()) {
+ $href = $this->registry->call(Misc::class, 'absolutize_url', [trim($link->getAttribute('href')), $this->base]);
+ } else {
+ $href = $this->registry->call(Misc::class, 'absolutize_url', [trim($link->getAttribute('href')), $this->http_base]);
+ }
+ if ($href === false) {
+ continue;
+ }
+
+ $current = $this->registry->call(Misc::class, 'parse_url', [$this->file->url]);
+
+ if ($parsed['authority'] === '' || $parsed['authority'] === $current['authority']) {
+ $this->local[] = $href;
+ } else {
+ $this->elsewhere[] = $href;
+ }
+ }
+ }
+ }
+ $this->local = array_unique($this->local);
+ $this->elsewhere = array_unique($this->elsewhere);
+ if (!empty($this->local) || !empty($this->elsewhere)) {
+ return true;
+ }
+ return null;
+ }
+
+ public function get_rel_link($rel)
+ {
+ if ($this->dom === null) {
+ throw new \SimplePie\Exception('DOMDocument not found, unable to use '.
+ 'locator');
+ }
+ if (!class_exists('DOMXpath')) {
+ throw new \SimplePie\Exception('DOMXpath not found, unable to use '.
+ 'get_rel_link');
+ }
+
+ $xpath = new \DOMXpath($this->dom);
+ $query = '//a[@rel and @href] | //link[@rel and @href]';
+ foreach ($xpath->query($query) as $link) {
+ $href = trim($link->getAttribute('href'));
+ $parsed = $this->registry->call(Misc::class, 'parse_url', [$href]);
+ if ($parsed['scheme'] === '' ||
+ preg_match('/^https?$/i', $parsed['scheme'])) {
+ if (method_exists($link, 'getLineNo') &&
+ $this->base_location < $link->getLineNo()) {
+ $href = $this->registry->call(
+ Misc::class,
+ 'absolutize_url',
+ [trim($link->getAttribute('href')), $this->base]
+ );
+ } else {
+ $href = $this->registry->call(
+ Misc::class,
+ 'absolutize_url',
+ [trim($link->getAttribute('href')), $this->http_base]
+ );
+ }
+ if ($href === false) {
+ return null;
+ }
+ $rel_values = explode(' ', strtolower($link->getAttribute('rel')));
+ if (in_array($rel, $rel_values)) {
+ return $href;
+ }
+ }
+ }
+ return null;
+ }
+
+ public function extension(&$array)
+ {
+ foreach ($array as $key => $value) {
+ if ($this->checked_feeds === $this->max_checked_feeds) {
+ break;
+ }
+ if (in_array(strtolower(strrchr($value, '.')), ['.rss', '.rdf', '.atom', '.xml'])) {
+ $this->checked_feeds++;
+
+ $headers = [
+ 'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
+ ];
+ $feed = $this->registry->create(File::class, [$value, $this->timeout, 5, $headers, $this->useragent, $this->force_fsockopen, $this->curl_options]);
+ if ($feed->success && ($feed->method & \SimplePie\SimplePie::FILE_SOURCE_REMOTE === 0 || ($feed->status_code === 200 || $feed->status_code > 206 && $feed->status_code < 300)) && $this->is_feed($feed)) {
+ return [$feed];
+ } else {
+ unset($array[$key]);
+ }
+ }
+ }
+ return null;
+ }
+
+ public function body(&$array)
+ {
+ foreach ($array as $key => $value) {
+ if ($this->checked_feeds === $this->max_checked_feeds) {
+ break;
+ }
+ if (preg_match('/(feed|rss|rdf|atom|xml)/i', $value)) {
+ $this->checked_feeds++;
+ $headers = [
+ 'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
+ ];
+ $feed = $this->registry->create(File::class, [$value, $this->timeout, 5, null, $this->useragent, $this->force_fsockopen, $this->curl_options]);
+ if ($feed->success && ($feed->method & \SimplePie\SimplePie::FILE_SOURCE_REMOTE === 0 || ($feed->status_code === 200 || $feed->status_code > 206 && $feed->status_code < 300)) && $this->is_feed($feed)) {
+ return [$feed];
+ } else {
+ unset($array[$key]);
+ }
+ }
+ }
+ return null;
+ }
+}
+
+class_alias('SimplePie\Locator', 'SimplePie_Locator', false);