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Base.php	3.34 MB	View DL Edit
DB.php	4.58 MB	View DL Edit
File.php	4.18 MB	View DL Edit
Memcache.php	4.8 MB	View DL Edit
Memcached.php	5.26 MB	View DL Edit
MySQL.php	12.54 MB	View DL Edit
Redis.php	3.98 MB	View DL Edit

Edit file: /home/mhhtmff/www/site BKP/wp-includes/SimplePie/Cache/MySQL.php

<?php
/**
 * SimplePie
 *
 * A PHP-Based RSS and Atom Feed Framework.
 * Takes the hard work out of managing a complete RSS/Atom solution.
 *
 * Copyright (c) 2004-2016, 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
 */

/**
 * 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
 */
class SimplePie_Cache_MySQL extends SimplePie_Cache_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 string $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data
	 */
	public function __construct($location, $name, $type)
	{
		$this->options = array(
			'user' => null,
			'pass' => null,
			'host' => '127.0.0.1',
			'port' => '3306',
			'path' => '',
			'extras' => array(
				'prefix' => '',
				'cache_purge_time' => 2592000
			),
		);

$this->options = SimplePie_Misc::array_merge_recursive($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'], array(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;
		}

$db = array();
		while ($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 $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)
		{
			$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())
					{
						$existing_ids = array();
						while ($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', $this->id);
					if ($this->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_NAMESPACE_ATOM_10]['feed'][0]))
				{
					$feed =& $data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0];
				}
				elseif (isset($data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]))
				{
					$feed =& $data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0];
				}
				elseif (isset($data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]))
				{
					$feed =& $data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0];
				}
				elseif (isset($data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]))
				{
					$feed =& $data['child'][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())
						{
							$feed['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry'][] = unserialize($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();
	}
}

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