?<h3>D¨ızenle: MySQL.php</h3>
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/**
 * 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 &quot;AS IS&quot; 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 &quot;mysql&quot; 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 &quot;Psr\SimpleCache\CacheInterface&quot; 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-&gt;options = [
            &#039;user&#039; =&gt; null,
            &#039;pass&#039; =&gt; null,
            &#039;host&#039; =&gt; &#039;127.0.0.1&#039;,
            &#039;port&#039; =&gt; &#039;3306&#039;,
            &#039;path&#039; =&gt; &#039;&#039;,
            &#039;extras&#039; =&gt; [
                &#039;prefix&#039; =&gt; &#039;&#039;,
                &#039;cache_purge_time&#039; =&gt; 2592000
            ],
        ];

        $this-&gt;options = array_replace_recursive($this-&gt;options, \SimplePie\Cache::parse_URL($location));

        // Path is prefixed with a &quot;/&quot;
        $this-&gt;options[&#039;dbname&#039;] = substr($this-&gt;options[&#039;path&#039;], 1);

        try {
            $this-&gt;mysql = new \PDO(&quot;mysql:dbname={$this-&gt;options[&#039;dbname&#039;]};host={$this-&gt;options[&#039;host&#039;]};port={$this-&gt;options[&#039;port&#039;]}&quot;, $this-&gt;options[&#039;user&#039;], $this-&gt;options[&#039;pass&#039;], [\PDO::MYSQL_ATTR_INIT_COMMAND =&gt; &#039;SET NAMES utf8&#039;]);
        } catch (\PDOException $e) {
            $this-&gt;mysql = null;
            return;
        }

        $this-&gt;id = $name . $type;

        if (!$query = $this-&gt;mysql-&gt;query(&#039;SHOW TABLES&#039;)) {
            $this-&gt;mysql = null;
            return;
        }

        $db = [];
        while ($row = $query-&gt;fetchColumn()) {
            $db[] = $row;
        }

        if (!in_array($this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data&#039;, $db)) {
            $query = $this-&gt;mysql-&gt;exec(&#039;CREATE TABLE `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` (`id` TEXT CHARACTER SET utf8 NOT NULL, `items` SMALLINT NOT NULL DEFAULT 0, `data` BLOB NOT NULL, `mtime` INT UNSIGNED NOT NULL, UNIQUE (`id`(125)))&#039;);
            if ($query === false) {
                trigger_error(&quot;Can&#039;t create &quot; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &quot;cache_data table, check permissions&quot;, \E_USER_WARNING);
                $this-&gt;mysql = null;
                return;
            }
        }

        if (!in_array($this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;items&#039;, $db)) {
            $query = $this-&gt;mysql-&gt;exec(&#039;CREATE TABLE `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;items` (`feed_id` TEXT CHARACTER SET utf8 NOT NULL, `id` TEXT CHARACTER SET utf8 NOT NULL, `data` MEDIUMBLOB NOT NULL, `posted` INT UNSIGNED NOT NULL, INDEX `feed_id` (`feed_id`(125)))&#039;);
            if ($query === false) {
                trigger_error(&quot;Can&#039;t create &quot; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &quot;items table, check permissions&quot;, \E_USER_WARNING);
                $this-&gt;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-&gt;mysql === null) {
            return false;
        }

        $query = $this-&gt;mysql-&gt;prepare(&#039;DELETE i, cd FROM `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` cd, &#039; .
            &#039;`&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;items` i &#039; .
            &#039;WHERE cd.id = i.feed_id &#039; .
            &#039;AND cd.mtime &lt; (unix_timestamp() - :purge_time)&#039;);
        $query-&gt;bindValue(&#039;:purge_time&#039;, $this-&gt;options[&#039;extras&#039;][&#039;cache_purge_time&#039;]);

        if (!$query-&gt;execute()) {
            return false;
        }

        if ($data instanceof \SimplePie\SimplePie) {
            $data = clone $data;

            $prepared = self::prepare_simplepie_object_for_cache($data);

            $query = $this-&gt;mysql-&gt;prepare(&#039;SELECT COUNT(*) FROM `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` WHERE `id` = :feed&#039;);
            $query-&gt;bindValue(&#039;:feed&#039;, $this-&gt;id);
            if ($query-&gt;execute()) {
                if ($query-&gt;fetchColumn() &gt; 0) {
                    $items = count($prepared[1]);
                    if ($items) {
                        $sql = &#039;UPDATE `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` SET `items` = :items, `data` = :data, `mtime` = :time WHERE `id` = :feed&#039;;
                        $query = $this-&gt;mysql-&gt;prepare($sql);
                        $query-&gt;bindValue(&#039;:items&#039;, $items);
                    } else {
                        $sql = &#039;UPDATE `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` SET `data` = :data, `mtime` = :time WHERE `id` = :feed&#039;;
                        $query = $this-&gt;mysql-&gt;prepare($sql);
                    }

                    $query-&gt;bindValue(&#039;:data&#039;, $prepared[0]);
                    $query-&gt;bindValue(&#039;:time&#039;, time());
                    $query-&gt;bindValue(&#039;:feed&#039;, $this-&gt;id);
                    if (!$query-&gt;execute()) {
                        return false;
                    }
                } else {
                    $query = $this-&gt;mysql-&gt;prepare(&#039;INSERT INTO `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` (`id`, `items`, `data`, `mtime`) VALUES(:feed, :count, :data, :time)&#039;);
                    $query-&gt;bindValue(&#039;:feed&#039;, $this-&gt;id);
                    $query-&gt;bindValue(&#039;:count&#039;, count($prepared[1]));
                    $query-&gt;bindValue(&#039;:data&#039;, $prepared[0]);
                    $query-&gt;bindValue(&#039;:time&#039;, time());
                    if (!$query-&gt;execute()) {
                        return false;
                    }
                }

                $ids = array_keys($prepared[1]);
                if (!empty($ids)) {
                    foreach ($ids as $id) {
                        $database_ids[] = $this-&gt;mysql-&gt;quote($id);
                    }

                    $query = $this-&gt;mysql-&gt;prepare(&#039;SELECT `id` FROM `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;items` WHERE `id` = &#039; . implode(&#039; OR `id` = &#039;, $database_ids) . &#039; AND `feed_id` = :feed&#039;);
                    $query-&gt;bindValue(&#039;:feed&#039;, $this-&gt;id);

                    if ($query-&gt;execute()) {
                        $existing_ids = [];
                        while ($row = $query-&gt;fetchColumn()) {
                            $existing_ids[] = $row;
                        }

                        $new_ids = array_diff($ids, $existing_ids);

                        foreach ($new_ids as $new_id) {
                            if (!($date = $prepared[1][$new_id]-&gt;get_date(&#039;U&#039;))) {
                                $date = time();
                            }

                            $query = $this-&gt;mysql-&gt;prepare(&#039;INSERT INTO `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;items` (`feed_id`, `id`, `data`, `posted`) VALUES(:feed, :id, :data, :date)&#039;);
                            $query-&gt;bindValue(&#039;:feed&#039;, $this-&gt;id);
                            $query-&gt;bindValue(&#039;:id&#039;, $new_id);
                            $query-&gt;bindValue(&#039;:data&#039;, serialize($prepared[1][$new_id]-&gt;data));
                            $query-&gt;bindValue(&#039;:date&#039;, $date);
                            if (!$query-&gt;execute()) {
                                return false;
                            }
                        }
                        return true;
                    }
                } else {
                    return true;
                }
            }
        } else {
            $query = $this-&gt;mysql-&gt;prepare(&#039;SELECT `id` FROM `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` WHERE `id` = :feed&#039;);
            $query-&gt;bindValue(&#039;:feed&#039;, $this-&gt;id);
            if ($query-&gt;execute()) {
                if ($query-&gt;rowCount() &gt; 0) {
                    $query = $this-&gt;mysql-&gt;prepare(&#039;UPDATE `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` SET `items` = 0, `data` = :data, `mtime` = :time WHERE `id` = :feed&#039;);
                    $query-&gt;bindValue(&#039;:data&#039;, serialize($data));
                    $query-&gt;bindValue(&#039;:time&#039;, time());
                    $query-&gt;bindValue(&#039;:feed&#039;, $this-&gt;id);
                    if ($query-&gt;execute()) {
                        return true;
                    }
                } else {
                    $query = $this-&gt;mysql-&gt;prepare(&#039;INSERT INTO `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` (`id`, `items`, `data`, `mtime`) VALUES(:id, 0, :data, :time)&#039;);
                    $query-&gt;bindValue(&#039;:id&#039;, $this-&gt;id);
                    $query-&gt;bindValue(&#039;:data&#039;, serialize($data));
                    $query-&gt;bindValue(&#039;:time&#039;, time());
                    if ($query-&gt;execute()) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    /**
     * Retrieve the data saved to the cache
     *
     * @return array Data for SimplePie::$data
     */
    public function load()
    {
        if ($this-&gt;mysql === null) {
            return false;
        }

        $query = $this-&gt;mysql-&gt;prepare(&#039;SELECT `items`, `data` FROM `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` WHERE `id` = :id&#039;);
        $query-&gt;bindValue(&#039;:id&#039;, $this-&gt;id);
        if ($query-&gt;execute() &amp;&amp; ($row = $query-&gt;fetch())) {
            $data = unserialize($row[1]);

            if (isset($this-&gt;options[&#039;items&#039;][0])) {
                $items = (int) $this-&gt;options[&#039;items&#039;][0];
            } else {
                $items = (int) $row[0];
            }

            if ($items !== 0) {
                if (isset($data[&#039;child&#039;][\SimplePie\SimplePie::NAMESPACE_ATOM_10][&#039;feed&#039;][0])) {
                    $feed = &amp;$data[&#039;child&#039;][\SimplePie\SimplePie::NAMESPACE_ATOM_10][&#039;feed&#039;][0];
                } elseif (isset($data[&#039;child&#039;][\SimplePie\SimplePie::NAMESPACE_ATOM_03][&#039;feed&#039;][0])) {
                    $feed = &amp;$data[&#039;child&#039;][\SimplePie\SimplePie::NAMESPACE_ATOM_03][&#039;feed&#039;][0];
                } elseif (isset($data[&#039;child&#039;][\SimplePie\SimplePie::NAMESPACE_RDF][&#039;RDF&#039;][0])) {
                    $feed = &amp;$data[&#039;child&#039;][\SimplePie\SimplePie::NAMESPACE_RDF][&#039;RDF&#039;][0];
                } elseif (isset($data[&#039;child&#039;][\SimplePie\SimplePie::NAMESPACE_RSS_20][&#039;rss&#039;][0])) {
                    $feed = &amp;$data[&#039;child&#039;][\SimplePie\SimplePie::NAMESPACE_RSS_20][&#039;rss&#039;][0];
                } else {
                    $feed = null;
                }

                if ($feed !== null) {
                    $sql = &#039;SELECT `data` FROM `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;items` WHERE `feed_id` = :feed ORDER BY `posted` DESC&#039;;
                    if ($items &gt; 0) {
                        $sql .= &#039; LIMIT &#039; . $items;
                    }

                    $query = $this-&gt;mysql-&gt;prepare($sql);
                    $query-&gt;bindValue(&#039;:feed&#039;, $this-&gt;id);
                    if ($query-&gt;execute()) {
                        while ($row = $query-&gt;fetchColumn()) {
                            $feed[&#039;child&#039;][\SimplePie\SimplePie::NAMESPACE_ATOM_10][&#039;entry&#039;][] = unserialize($row);
                        }
                    } else {
                        return false;
                    }
                }
            }
            return $data;
        }
        return false;
    }

    /**
     * Retrieve the last modified time for the cache
     *
     * @return int Timestamp
     */
    public function mtime()
    {
        if ($this-&gt;mysql === null) {
            return false;
        }

        $query = $this-&gt;mysql-&gt;prepare(&#039;SELECT `mtime` FROM `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` WHERE `id` = :id&#039;);
        $query-&gt;bindValue(&#039;:id&#039;, $this-&gt;id);
        if ($query-&gt;execute() &amp;&amp; ($time = $query-&gt;fetchColumn())) {
            return $time;
        }

        return false;
    }

    /**
     * Set the last modified time to the current time
     *
     * @return bool Success status
     */
    public function touch()
    {
        if ($this-&gt;mysql === null) {
            return false;
        }

        $query = $this-&gt;mysql-&gt;prepare(&#039;UPDATE `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` SET `mtime` = :time WHERE `id` = :id&#039;);
        $query-&gt;bindValue(&#039;:time&#039;, time());
        $query-&gt;bindValue(&#039;:id&#039;, $this-&gt;id);

        return $query-&gt;execute() &amp;&amp; $query-&gt;rowCount() &gt; 0;
    }

    /**
     * Remove the cache
     *
     * @return bool Success status
     */
    public function unlink()
    {
        if ($this-&gt;mysql === null) {
            return false;
        }

        $query = $this-&gt;mysql-&gt;prepare(&#039;DELETE FROM `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;cache_data` WHERE `id` = :id&#039;);
        $query-&gt;bindValue(&#039;:id&#039;, $this-&gt;id);
        $query2 = $this-&gt;mysql-&gt;prepare(&#039;DELETE FROM `&#039; . $this-&gt;options[&#039;extras&#039;][&#039;prefix&#039;] . &#039;items` WHERE `feed_id` = :id&#039;);
        $query2-&gt;bindValue(&#039;:id&#039;, $this-&gt;id);

        return $query-&gt;execute() &amp;&amp; $query2-&gt;execute();
    }
}

class_alias(&#039;SimplePie\Cache\MySQL&#039;, &#039;SimplePie_Cache_MySQL&#039;);
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