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<?phpdeclare(strict_types=1);/*** 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\Cache;/*** Caches data to a MySQL database** Registered for URLs with the "mysql" protocol** For example, `mysql://root:password@localhost:3306/mydb?prefix=sp_` will* connect to the `mydb` database on `localhost` on port 3306, with the user* `root` and the password `password`. All tables will be prefixed with `sp_`** @package SimplePie* @subpackage Caching* @deprecated since SimplePie 1.8.0, use implementation of "Psr\SimpleCache\CacheInterface" instead*/class MySQL extends DB{/*** PDO instance** @var \PDO*/protected $mysql;/*** Options** @var array*/protected $options;/*** Cache ID** @var string*/protected $id;/*** Create a new cache object** @param string $location Location string (from SimplePie::$cache_location)* @param string $name Unique ID for the cache* @param Base::TYPE_FEED|Base::TYPE_IMAGE $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data*/public function __construct($location, $name, $type){$this->options = ['user' => null,'pass' => null,'host' => '127.0.0.1','port' => '3306','path' => '','extras' => ['prefix' => '','cache_purge_time' => 2592000],];$this->options = array_replace_recursive($this->options, \SimplePie\Cache::parse_URL($location));// Path is prefixed with a "/"$this->options['dbname'] = substr($this->options['path'], 1);try {$this->mysql = new \PDO("mysql:dbname={$this->options['dbname']};host={$this->options['host']};port={$this->options['port']}", $this->options['user'], $this->options['pass'], [\PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8']);} catch (\PDOException $e) {$this->mysql = null;return;}$this->id = $name . $type;if (!$query = $this->mysql->query('SHOW TABLES')) {$this->mysql = null;return;}$db = [];while ($row = $query->fetchColumn()) {$db[] = $row;}if (!in_array($this->options['extras']['prefix'] . 'cache_data', $db)) {$query = $this->mysql->exec('CREATE TABLE `' . $this->options['extras']['prefix'] . 'cache_data` (`id` TEXT CHARACTER SET utf8 NOT NULL, `items` SMALLINT NOT NULL DEFAULT 0, `data` BLOB NOT NULL, `mtime` INT UNSIGNED NOT NULL, UNIQUE (`id`(125)))');if ($query === false) {trigger_error("Can't create " . $this->options['extras']['prefix'] . "cache_data table, check permissions", \E_USER_WARNING);$this->mysql = null;return;}}if (!in_array($this->options['extras']['prefix'] . 'items', $db)) {$query = $this->mysql->exec('CREATE TABLE `' . $this->options['extras']['prefix'] . 'items` (`feed_id` TEXT CHARACTER SET utf8 NOT NULL, `id` TEXT CHARACTER SET utf8 NOT NULL, `data` MEDIUMBLOB NOT NULL, `posted` INT UNSIGNED NOT NULL, INDEX `feed_id` (`feed_id`(125)))');if ($query === false) {trigger_error("Can't create " . $this->options['extras']['prefix'] . "items table, check permissions", \E_USER_WARNING);$this->mysql = null;return;}}}/*** Save data to the cache** @param array|\SimplePie\SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property* @return bool Successfulness*/public function save($data){if ($this->mysql === null) {return false;}$query = $this->mysql->prepare('DELETE i, cd FROM `' . $this->options['extras']['prefix'] . 'cache_data` cd, ' .'`' . $this->options['extras']['prefix'] . 'items` i ' .'WHERE cd.id = i.feed_id ' .'AND cd.mtime < (unix_timestamp() - :purge_time)');$query->bindValue(':purge_time', $this->options['extras']['cache_purge_time']);if (!$query->execute()) {return false;}if ($data instanceof \SimplePie\SimplePie) {$data = clone $data;$prepared = self::prepare_simplepie_object_for_cache($data);$query = $this->mysql->prepare('SELECT COUNT(*) FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :feed');$query->bindValue(':feed', $this->id);if ($query->execute()) {if ($query->fetchColumn() > 0) {$items = count($prepared[1]);if ($items) {$sql = 'UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `items` = :items, `data` = :data, `mtime` = :time WHERE `id` = :feed';$query = $this->mysql->prepare($sql);$query->bindValue(':items', $items);} else {$sql = 'UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `data` = :data, `mtime` = :time WHERE `id` = :feed';$query = $this->mysql->prepare($sql);}$query->bindValue(':data', $prepared[0]);$query->bindValue(':time', time());$query->bindValue(':feed', $this->id);if (!$query->execute()) {return false;}} else {$query = $this->mysql->prepare('INSERT INTO `' . $this->options['extras']['prefix'] . 'cache_data` (`id`, `items`, `data`, `mtime`) VALUES(:feed, :count, :data, :time)');$query->bindValue(':feed', $this->id);$query->bindValue(':count', count($prepared[1]));$query->bindValue(':data', $prepared[0]);$query->bindValue(':time', time());if (!$query->execute()) {return false;}}$ids = array_keys($prepared[1]);if (!empty($ids)) {foreach ($ids as $id) {$database_ids[] = $this->mysql->quote($id);}$query = $this->mysql->prepare('SELECT `id` FROM `' . $this->options['extras']['prefix'] . 'items` WHERE `id` = ' . implode(' OR `id` = ', $database_ids) . ' AND `feed_id` = :feed');$query->bindValue(':feed', $this->id);if ($query->execute()) {$existing_ids = [];while ($row = $query->fetchColumn()) {$existing_ids[] = $row;}$new_ids = array_diff($ids, $existing_ids);foreach ($new_ids as $new_id) {if (!($date = $prepared[1][$new_id]->get_date('U'))) {$date = time();}$query = $this->mysql->prepare('INSERT INTO `' . $this->options['extras']['prefix'] . 'items` (`feed_id`, `id`, `data`, `posted`) VALUES(:feed, :id, :data, :date)');$query->bindValue(':feed', $this->id);$query->bindValue(':id', $new_id);$query->bindValue(':data', serialize($prepared[1][$new_id]->data));$query->bindValue(':date', $date);if (!$query->execute()) {return false;}}return true;}} else {return true;}}} else {$query = $this->mysql->prepare('SELECT `id` FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :feed');$query->bindValue(':feed', $this->id);if ($query->execute()) {if ($query->rowCount() > 0) {$query = $this->mysql->prepare('UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `items` = 0, `data` = :data, `mtime` = :time WHERE `id` = :feed');$query->bindValue(':data', serialize($data));$query->bindValue(':time', time());$query->bindValue(':feed', $this->id);if ($query->execute()) {return true;}} else {$query = $this->mysql->prepare('INSERT INTO `' . $this->options['extras']['prefix'] . 'cache_data` (`id`, `items`, `data`, `mtime`) VALUES(:id, 0, :data, :time)');$query->bindValue(':id', $this->id);$query->bindValue(':data', serialize($data));$query->bindValue(':time', time());if ($query->execute()) {return true;}}}}return false;}/*** Retrieve the data saved to the cache** @return array Data for SimplePie::$data*/public function load(){if ($this->mysql === null) {return false;}$query = $this->mysql->prepare('SELECT `items`, `data` FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :id');$query->bindValue(':id', $this->id);if ($query->execute() && ($row = $query->fetch())) {$data = unserialize($row[1]);if (isset($this->options['items'][0])) {$items = (int) $this->options['items'][0];} else {$items = (int) $row[0];}if ($items !== 0) {if (isset($data['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_10]['feed'][0])) {$feed =& $data['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_10]['feed'][0];} elseif (isset($data['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_03]['feed'][0])) {$feed =& $data['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_03]['feed'][0];} elseif (isset($data['child'][\SimplePie\SimplePie::NAMESPACE_RDF]['RDF'][0])) {$feed =& $data['child'][\SimplePie\SimplePie::NAMESPACE_RDF]['RDF'][0];} elseif (isset($data['child'][\SimplePie\SimplePie::NAMESPACE_RSS_20]['rss'][0])) {$feed =& $data['child'][\SimplePie\SimplePie::NAMESPACE_RSS_20]['rss'][0];} else {$feed = null;}if ($feed !== null) {$sql = 'SELECT `data` FROM `' . $this->options['extras']['prefix'] . 'items` WHERE `feed_id` = :feed ORDER BY `posted` DESC';if ($items > 0) {$sql .= ' LIMIT ' . $items;}$query = $this->mysql->prepare($sql);$query->bindValue(':feed', $this->id);if ($query->execute()) {while ($row = $query->fetchColumn()) {$feed['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_10]['entry'][] = unserialize($row);}} else {return false;}}}return $data;}return false;}/*** Retrieve the last modified time for the cache** @return int Timestamp*/public function mtime(){if ($this->mysql === null) {return false;}$query = $this->mysql->prepare('SELECT `mtime` FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :id');$query->bindValue(':id', $this->id);if ($query->execute() && ($time = $query->fetchColumn())) {return $time;}return false;}/*** Set the last modified time to the current time** @return bool Success status*/public function touch(){if ($this->mysql === null) {return false;}$query = $this->mysql->prepare('UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `mtime` = :time WHERE `id` = :id');$query->bindValue(':time', time());$query->bindValue(':id', $this->id);return $query->execute() && $query->rowCount() > 0;}/*** Remove the cache** @return bool Success status*/public function unlink(){if ($this->mysql === null) {return false;}$query = $this->mysql->prepare('DELETE FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :id');$query->bindValue(':id', $this->id);$query2 = $this->mysql->prepare('DELETE FROM `' . $this->options['extras']['prefix'] . 'items` WHERE `feed_id` = :id');$query2->bindValue(':id', $this->id);return $query->execute() && $query2->execute();}}class_alias('SimplePie\Cache\MySQL', 'SimplePie_Cache_MySQL');