-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2005, 2009 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* ACM for APC

-* @package acm

-*/

-class phpbb_cache_driver_apc extends phpbb_cache_driver_memory

-{

- var $extension = 'apc';

-

- /**

- * Purge cache data

- *

- * @return null

- */

- function purge()

- {

- apc_clear_cache('user');

-

- parent::purge();

- }

-

- /**

- * Fetch an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return mixed Cached data

- */

- function _read($var)

- {

- return apc_fetch($this->key_prefix . $var);

- }

-

- /**

- * Store data in the cache

- *

- * @access protected

- * @param string $var Cache key

- * @param mixed $data Data to store

- * @param int $ttl Time-to-live of cached data

- * @return bool True if the operation succeeded

- */

- function _write($var, $data, $ttl = 2592000)

- {

- return apc_store($this->key_prefix . $var, $data, $ttl);

- }

-

- /**

- * Remove an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return bool True if the operation succeeded

- */

- function _delete($var)

- {

- return apc_delete($this->key_prefix . $var);

- }

-}

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2010 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* @package acm

-*/

-abstract class phpbb_cache_driver_base implements phpbb_cache_driver_interface

-{

-}

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2005, 2009 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* ACM for eAccelerator

-* @package acm

-* @todo Missing locks from destroy() talk with David

-*/

-class phpbb_cache_driver_eaccelerator extends phpbb_cache_driver_memory

-{

- var $extension = 'eaccelerator';

- var $function = 'eaccelerator_get';

-

- var $serialize_header = '#phpbb-serialized#';

-

- /**

- * Purge cache data

- *

- * @return null

- */

- function purge()

- {

- foreach (eaccelerator_list_keys() as $var)

- {

- // @todo Check why the substr()

- // @todo Only unset vars matching $this->key_prefix

- eaccelerator_rm(substr($var['name'], 1));

- }

-

- parent::purge();

- }

-

- /**

- * Perform cache garbage collection

- *

- * @return null

- */

- function tidy()

- {

- eaccelerator_gc();

-

- set_config('cache_last_gc', time(), true);

- }

-

- /**

- * Fetch an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return mixed Cached data

- */

- function _read($var)

- {

- $result = eaccelerator_get($this->key_prefix . $var);

-

- if ($result === null)

- {

- return false;

- }

-

- // Handle serialized objects

- if (is_string($result) && strpos($result, $this->serialize_header . 'O:') === 0)

- {

- $result = unserialize(substr($result, strlen($this->serialize_header)));

- }

-

- return $result;

- }

-

- /**

- * Store data in the cache

- *

- * @access protected

- * @param string $var Cache key

- * @param mixed $data Data to store

- * @param int $ttl Time-to-live of cached data

- * @return bool True if the operation succeeded

- */

- function _write($var, $data, $ttl = 2592000)

- {

- // Serialize objects and make them easy to detect

- $data = (is_object($data)) ? $this->serialize_header . serialize($data) : $data;

-

- return eaccelerator_put($this->key_prefix . $var, $data, $ttl);

- }

-

- /**

- * Remove an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return bool True if the operation succeeded

- */

- function _delete($var)

- {

- return eaccelerator_rm($this->key_prefix . $var);

- }

-}

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2005, 2009 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* ACM File Based Caching

-* @package acm

-*/

-class phpbb_cache_driver_file extends phpbb_cache_driver_base

-{

- var $vars = array();

- var $var_expires = array();

- var $is_modified = false;

-

- var $sql_rowset = array();

- var $sql_row_pointer = array();

- var $cache_dir = '';

-

- /**

- * Set cache path

- */

- function __construct($cache_dir = null)

- {

- global $phpbb_root_path;

- $this->cache_dir = !is_null($cache_dir) ? $cache_dir : $phpbb_root_path . 'cache/';

- }

-

- /**

- * Load global cache

- */

- function load()

- {

- return $this->_read('data_global');

- }

-

- /**

- * Unload cache object

- */

- function unload()

- {

- $this->save();

- unset($this->vars);

- unset($this->var_expires);

- unset($this->sql_rowset);

- unset($this->sql_row_pointer);

-

- $this->vars = array();

- $this->var_expires = array();

- $this->sql_rowset = array();

- $this->sql_row_pointer = array();

- }

-

- /**

- * Save modified objects

- */

- function save()

- {

- if (!$this->is_modified)

- {

- return;

- }

-

- global $phpEx;

-

- if (!$this->_write('data_global'))

- {

- if (!function_exists('phpbb_is_writable'))

- {

- global $phpbb_root_path;

- include($phpbb_root_path . 'includes/functions.' . $phpEx);

- }

-

- // Now, this occurred how often? ... phew, just tell the user then...

- if (!phpbb_is_writable($this->cache_dir))

- {

- // We need to use die() here, because else we may encounter an infinite loop (the message handler calls $cache->unload())

- die('Fatal: ' . $this->cache_dir . ' is NOT writable.');

- exit;

- }

-

- die('Fatal: Not able to open ' . $this->cache_dir . 'data_global.' . $phpEx);

- exit;

- }

-

- $this->is_modified = false;

- }

-

- /**

- * Tidy cache

- */

- function tidy()

- {

- global $phpEx;

-

- $dir = @opendir($this->cache_dir);

-

- if (!$dir)

- {

- return;

- }

-

- $time = time();

-

- while (($entry = readdir($dir)) !== false)

- {

- if (!preg_match('/^(sql_|data_(?!global))/', $entry))

- {

- continue;

- }

-

- if (!($handle = @fopen($this->cache_dir . $entry, 'rb')))

- {

- continue;

- }

-

- // Skip the PHP header

- fgets($handle);

-

- // Skip expiration

- $expires = (int) fgets($handle);

-

- fclose($handle);

-

- if ($time >= $expires)

- {

- $this->remove_file($this->cache_dir . $entry);

- }

- }

- closedir($dir);

-

- if (file_exists($this->cache_dir . 'data_global.' . $phpEx))

- {

- if (!sizeof($this->vars))

- {

- $this->load();

- }

-

- foreach ($this->var_expires as $var_name => $expires)

- {

- if ($time >= $expires)

- {

- $this->destroy($var_name);

- }

- }

- }

-

- set_config('cache_last_gc', time(), true);

- }

-

- /**

- * Get saved cache object

- */

- function get($var_name)

- {

- if ($var_name[0] == '_')

- {

- global $phpEx;

-

- if (!$this->_exists($var_name))

- {

- return false;

- }

-

- return $this->_read('data' . $var_name);

- }

- else

- {

- return ($this->_exists($var_name)) ? $this->vars[$var_name] : false;

- }

- }

-

- /**

- * Put data into cache

- */

- function put($var_name, $var, $ttl = 31536000)

- {

- if ($var_name[0] == '_')

- {

- $this->_write('data' . $var_name, $var, time() + $ttl);

- }

- else

- {

- $this->vars[$var_name] = $var;

- $this->var_expires[$var_name] = time() + $ttl;

- $this->is_modified = true;

- }

- }

-

- /**

- * Purge cache data

- */

- function purge()

- {

- // Purge all phpbb cache files

- $dir = @opendir($this->cache_dir);

-

- if (!$dir)

- {

- return;

- }

-

- while (($entry = readdir($dir)) !== false)

- {

- if (strpos($entry, 'container_') !== 0 &&

- strpos($entry, 'url_matcher') !== 0 &&

- strpos($entry, 'sql_') !== 0 &&

- strpos($entry, 'data_') !== 0 &&

- strpos($entry, 'ctpl_') !== 0 &&

- strpos($entry, 'tpl_') !== 0)

- {

- continue;

- }

-

- $this->remove_file($this->cache_dir . $entry);

- }

- closedir($dir);

-

- unset($this->vars);

- unset($this->var_expires);

- unset($this->sql_rowset);

- unset($this->sql_row_pointer);

-

- $this->vars = array();

- $this->var_expires = array();

- $this->sql_rowset = array();

- $this->sql_row_pointer = array();

-

- $this->is_modified = false;

- }

-

- /**

- * Destroy cache data

- */

- function destroy($var_name, $table = '')

- {

- global $phpEx;

-

- if ($var_name == 'sql' && !empty($table))

- {

- if (!is_array($table))

- {

- $table = array($table);

- }

-

- $dir = @opendir($this->cache_dir);

-

- if (!$dir)

- {

- return;

- }

-

- while (($entry = readdir($dir)) !== false)

- {

- if (strpos($entry, 'sql_') !== 0)

- {

- continue;

- }

-

- if (!($handle = @fopen($this->cache_dir . $entry, 'rb')))

- {

- continue;

- }

-

- // Skip the PHP header

- fgets($handle);

-

- // Skip expiration

- fgets($handle);

-

- // Grab the query, remove the LF

- $query = substr(fgets($handle), 0, -1);

-

- fclose($handle);

-

- foreach ($table as $check_table)

- {

- // Better catch partial table names than no table names. ;)

- if (strpos($query, $check_table) !== false)

- {

- $this->remove_file($this->cache_dir . $entry);

- break;

- }

- }

- }

- closedir($dir);

-

- return;

- }

-

- if (!$this->_exists($var_name))

- {

- return;

- }

-

- if ($var_name[0] == '_')

- {

- $this->remove_file($this->cache_dir . 'data' . $var_name . ".$phpEx", true);

- }

- else if (isset($this->vars[$var_name]))

- {

- $this->is_modified = true;

- unset($this->vars[$var_name]);

- unset($this->var_expires[$var_name]);

-

- // We save here to let the following cache hits succeed

- $this->save();

- }

- }

-

- /**

- * Check if a given cache entry exist

- */

- function _exists($var_name)

- {

- if ($var_name[0] == '_')

- {

- global $phpEx;

- return file_exists($this->cache_dir . 'data' . $var_name . ".$phpEx");

- }

- else

- {

- if (!sizeof($this->vars))

- {

- $this->load();

- }

-

- if (!isset($this->var_expires[$var_name]))

- {

- return false;

- }

-

- return (time() > $this->var_expires[$var_name]) ? false : isset($this->vars[$var_name]);

- }

- }

-

- /**

- * Load cached sql query

- */

- function sql_load($query)

- {

- // Remove extra spaces and tabs

- $query = preg_replace('/[\n\r\s\t]+/', ' ', $query);

-

- if (($rowset = $this->_read('sql_' . md5($query))) === false)

- {

- return false;

- }

-

- $query_id = sizeof($this->sql_rowset);

- $this->sql_rowset[$query_id] = $rowset;

- $this->sql_row_pointer[$query_id] = 0;

-

- return $query_id;

- }

-

- /**

- * {@inheritDoc}

- */

- function sql_save(phpbb_db_driver $db, $query, $query_result, $ttl)

- {

- // Remove extra spaces and tabs

- $query = preg_replace('/[\n\r\s\t]+/', ' ', $query);

-

- $query_id = sizeof($this->sql_rowset);

- $this->sql_rowset[$query_id] = array();

- $this->sql_row_pointer[$query_id] = 0;

-

- while ($row = $db->sql_fetchrow($query_result))

- {

- $this->sql_rowset[$query_id][] = $row;

- }

- $db->sql_freeresult($query_result);

-

- if ($this->_write('sql_' . md5($query), $this->sql_rowset[$query_id], $ttl + time(), $query))

- {

- return $query_id;

- }

-

- return $query_result;

- }

-

- /**

- * Ceck if a given sql query exist in cache

- */

- function sql_exists($query_id)

- {

- return isset($this->sql_rowset[$query_id]);

- }

-

- /**

- * Fetch row from cache (database)

- */

- function sql_fetchrow($query_id)

- {

- if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id]))

- {

- return $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++];

- }

-

- return false;

- }

-

- /**

- * Fetch a field from the current row of a cached database result (database)

- */

- function sql_fetchfield($query_id, $field)

- {

- if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id]))

- {

- return (isset($this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]][$field])) ? $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++][$field] : false;

- }

-

- return false;

- }

-

- /**

- * Seek a specific row in an a cached database result (database)

- */

- function sql_rowseek($rownum, $query_id)

- {

- if ($rownum >= sizeof($this->sql_rowset[$query_id]))

- {

- return false;

- }

-

- $this->sql_row_pointer[$query_id] = $rownum;

- return true;

- }

-

- /**

- * Free memory used for a cached database result (database)

- */

- function sql_freeresult($query_id)

- {

- if (!isset($this->sql_rowset[$query_id]))

- {

- return false;

- }

-

- unset($this->sql_rowset[$query_id]);

- unset($this->sql_row_pointer[$query_id]);

-

- return true;

- }

-

- /**

- * Read cached data from a specified file

- *

- * @access private

- * @param string $filename Filename to write

- * @return mixed False if an error was encountered, otherwise the data type of the cached data

- */

- function _read($filename)

- {

- global $phpEx;

-

- $file = "{$this->cache_dir}$filename.$phpEx";

-

- $type = substr($filename, 0, strpos($filename, '_'));

-

- if (!file_exists($file))

- {

- return false;

- }

-

- if (!($handle = @fopen($file, 'rb')))

- {

- return false;

- }

-

- // Skip the PHP header

- fgets($handle);

-

- if ($filename == 'data_global')

- {

- $this->vars = $this->var_expires = array();

-

- $time = time();

-

- while (($expires = (int) fgets($handle)) && !feof($handle))

- {

- // Number of bytes of data

- $bytes = substr(fgets($handle), 0, -1);

-

- if (!is_numeric($bytes) || ($bytes = (int) $bytes) === 0)

- {

- // We cannot process the file without a valid number of bytes

- // so we discard it

- fclose($handle);

-

- $this->vars = $this->var_expires = array();

- $this->is_modified = false;

-

- $this->remove_file($file);

-

- return false;

- }

-

- if ($time >= $expires)

- {

- fseek($handle, $bytes, SEEK_CUR);

-

- continue;

- }

-

- $var_name = substr(fgets($handle), 0, -1);

-

- // Read the length of bytes that consists of data.

- $data = fread($handle, $bytes - strlen($var_name));

- $data = @unserialize($data);

-

- // Don't use the data if it was invalid

- if ($data !== false)

- {

- $this->vars[$var_name] = $data;

- $this->var_expires[$var_name] = $expires;

- }

-

- // Absorb the LF

- fgets($handle);

- }

-

- fclose($handle);

-

- $this->is_modified = false;

-

- return true;

- }

- else

- {

- $data = false;

- $line = 0;

-

- while (($buffer = fgets($handle)) && !feof($handle))

- {

- $buffer = substr($buffer, 0, -1); // Remove the LF

-

- // $buffer is only used to read integers

- // if it is non numeric we have an invalid

- // cache file, which we will now remove.

- if (!is_numeric($buffer))

- {

- break;

- }

-

- if ($line == 0)

- {

- $expires = (int) $buffer;

-

- if (time() >= $expires)

- {

- break;

- }

-

- if ($type == 'sql')

- {

- // Skip the query

- fgets($handle);

- }

- }

- else if ($line == 1)

- {

- $bytes = (int) $buffer;

-

- // Never should have 0 bytes

- if (!$bytes)

- {

- break;

- }

-

- // Grab the serialized data

- $data = fread($handle, $bytes);

-

- // Read 1 byte, to trigger EOF

- fread($handle, 1);

-

- if (!feof($handle))

- {

- // Somebody tampered with our data

- $data = false;

- }

- break;

- }

- else

- {

- // Something went wrong

- break;

- }

- $line++;

- }

- fclose($handle);

-

- // unserialize if we got some data

- $data = ($data !== false) ? @unserialize($data) : $data;

-

- if ($data === false)

- {

- $this->remove_file($file);

- return false;

- }

-

- return $data;

- }

- }

-

- /**

- * Write cache data to a specified file

- *

- * 'data_global' is a special case and the generated format is different for this file:

- * <code>

- * <?php exit; ?>

- * (expiration)

- * (length of var and serialised data)

- * (var)

- * (serialised data)

- * ... (repeat)

- * </code>

- *

- * The other files have a similar format:

- * <code>

- * <?php exit; ?>

- * (expiration)

- * (query) [SQL files only]

- * (length of serialised data)

- * (serialised data)

- * </code>

- *

- * @access private

- * @param string $filename Filename to write

- * @param mixed $data Data to store

- * @param int $expires Timestamp when the data expires

- * @param string $query Query when caching SQL queries

- * @return bool True if the file was successfully created, otherwise false

- */

- function _write($filename, $data = null, $expires = 0, $query = '')

- {

- global $phpEx;

-

- $file = "{$this->cache_dir}$filename.$phpEx";

-

- $lock = new phpbb_lock_flock($file);

- $lock->acquire();

-

- if ($handle = @fopen($file, 'wb'))

- {

- // File header

- fwrite($handle, '<' . '?php exit; ?' . '>');

-

- if ($filename == 'data_global')

- {

- // Global data is a different format

- foreach ($this->vars as $var => $data)

- {

- if (strpos($var, "\r") !== false || strpos($var, "\n") !== false)

- {

- // CR/LF would cause fgets() to read the cache file incorrectly

- // do not cache test entries, they probably won't be read back

- // the cache keys should really be alphanumeric with a few symbols.

- continue;

- }

- $data = serialize($data);

-

- // Write out the expiration time

- fwrite($handle, "\n" . $this->var_expires[$var] . "\n");

-

- // Length of the remaining data for this var (ignoring two LF's)

- fwrite($handle, strlen($data . $var) . "\n");

- fwrite($handle, $var . "\n");

- fwrite($handle, $data);

- }

- }

- else

- {

- fwrite($handle, "\n" . $expires . "\n");

-

- if (strpos($filename, 'sql_') === 0)

- {

- fwrite($handle, $query . "\n");

- }

- $data = serialize($data);

-

- fwrite($handle, strlen($data) . "\n");

- fwrite($handle, $data);

- }

-

- fclose($handle);

-

- if (!function_exists('phpbb_chmod'))

- {

- global $phpbb_root_path;

- include($phpbb_root_path . 'includes/functions.' . $phpEx);

- }

-

- phpbb_chmod($file, CHMOD_READ | CHMOD_WRITE);

-

- $return_value = true;

- }

- else

- {

- $return_value = false;

- }

-

- $lock->release();

-

- return $return_value;

- }

-

- /**

- * Removes/unlinks file

- */

- function remove_file($filename, $check = false)

- {

- if (!function_exists('phpbb_is_writable'))

- {

- global $phpbb_root_path, $phpEx;

- include($phpbb_root_path . 'includes/functions.' . $phpEx);

- }

-

- if ($check && !phpbb_is_writable($this->cache_dir))

- {

- // E_USER_ERROR - not using language entry - intended.

- trigger_error('Unable to remove files within ' . $this->cache_dir . '. Please check directory permissions.', E_USER_ERROR);

- }

-

- return @unlink($filename);

- }

-}

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2010 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* An interface that all cache drivers must implement

-*

-* @package acm

-*/

-interface phpbb_cache_driver_interface

-{

- /**

- * Load global cache

- */

- public function load();

-

- /**

- * Unload cache object

- */

- public function unload();

-

- /**

- * Save modified objects

- */

- public function save();

-

- /**

- * Tidy cache

- */

- public function tidy();

-

- /**

- * Get saved cache object

- */

- public function get($var_name);

-

- /**

- * Put data into cache

- */

- public function put($var_name, $var, $ttl = 0);

-

- /**

- * Purge cache data

- */

- public function purge();

-

- /**

- * Destroy cache data

- */

- public function destroy($var_name, $table = '');

-

- /**

- * Check if a given cache entry exists

- */

- public function _exists($var_name);

-

- /**

- * Load result of an SQL query from cache.

- *

- * @param string $query SQL query

- *

- * @return int|bool Query ID (integer) if cache contains a rowset

- * for the specified query.

- * False otherwise.

- */

- public function sql_load($query);

-

- /**

- * Save result of an SQL query in cache.

- *

- * In persistent cache stores, this function stores the query

- * result to persistent storage. In other words, there is no need

- * to call save() afterwards.

- *

- * @param phpbb_db_driver $db Database connection

- * @param string $query SQL query, should be used for generating storage key

- * @param mixed $query_result The result from dbal::sql_query, to be passed to

- * dbal::sql_fetchrow to get all rows and store them

- * in cache.

- * @param int $ttl Time to live, after this timeout the query should

- * expire from the cache.

- * @return int|mixed If storing in cache succeeded, an integer $query_id

- * representing the query should be returned. Otherwise

- * the original $query_result should be returned.

- */

- public function sql_save(phpbb_db_driver $db, $query, $query_result, $ttl);

-

- /**

- * Check if result for a given SQL query exists in cache.

- *

- * @param int $query_id

- * @return bool

- */

- public function sql_exists($query_id);

-

- /**

- * Fetch row from cache (database)

- *

- * @param int $query_id

- * @return array|bool The query result if found in the cache, otherwise

- * false.

- */

- public function sql_fetchrow($query_id);

-

- /**

- * Fetch a field from the current row of a cached database result (database)

- *

- * @param int $query_id

- * @param $field The name of the column.

- * @return string|bool The field of the query result if found in the cache,

- * otherwise false.

- */

- public function sql_fetchfield($query_id, $field);

-

- /**

- * Seek a specific row in an a cached database result (database)

- *

- * @param int $rownum Row to seek to.

- * @param int $query_id

- * @return bool

- */

- public function sql_rowseek($rownum, $query_id);

-

- /**

- * Free memory used for a cached database result (database)

- *

- * @param int $query_id

- * @return bool

- */

- public function sql_freeresult($query_id);

-}

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2005, 2009 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-if (!defined('PHPBB_ACM_MEMCACHE_PORT'))

-{

- define('PHPBB_ACM_MEMCACHE_PORT', 11211);

-}

-

-if (!defined('PHPBB_ACM_MEMCACHE_COMPRESS'))

-{

- define('PHPBB_ACM_MEMCACHE_COMPRESS', false);

-}

-

-if (!defined('PHPBB_ACM_MEMCACHE_HOST'))

-{

- define('PHPBB_ACM_MEMCACHE_HOST', 'localhost');

-}

-

-if (!defined('PHPBB_ACM_MEMCACHE'))

-{

- //can define multiple servers with host1/port1,host2/port2 format

- define('PHPBB_ACM_MEMCACHE', PHPBB_ACM_MEMCACHE_HOST . '/' . PHPBB_ACM_MEMCACHE_PORT);

-}

-

-/**

-* ACM for Memcached

-* @package acm

-*/

-class phpbb_cache_driver_memcache extends phpbb_cache_driver_memory

-{

- var $extension = 'memcache';

-

- var $memcache;

- var $flags = 0;

-

- function __construct()

- {

- // Call the parent constructor

- parent::__construct();

-

- $this->memcache = new Memcache;

- foreach(explode(',', PHPBB_ACM_MEMCACHE) as $u)

- {

- $parts = explode('/', $u);

- $this->memcache->addServer(trim($parts[0]), trim($parts[1]));

- }

- $this->flags = (PHPBB_ACM_MEMCACHE_COMPRESS) ? MEMCACHE_COMPRESSED : 0;

- }

-

- /**

- * Unload the cache resources

- *

- * @return null

- */

- function unload()

- {

- parent::unload();

-

- $this->memcache->close();

- }

-

- /**

- * Purge cache data

- *

- * @return null

- */

- function purge()

- {

- $this->memcache->flush();

-

- parent::purge();

- }

-

- /**

- * Fetch an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return mixed Cached data

- */

- function _read($var)

- {

- return $this->memcache->get($this->key_prefix . $var);

- }

-

- /**

- * Store data in the cache

- *

- * @access protected

- * @param string $var Cache key

- * @param mixed $data Data to store

- * @param int $ttl Time-to-live of cached data

- * @return bool True if the operation succeeded

- */

- function _write($var, $data, $ttl = 2592000)

- {

- if (!$this->memcache->replace($this->key_prefix . $var, $data, $this->flags, $ttl))

- {

- return $this->memcache->set($this->key_prefix . $var, $data, $this->flags, $ttl);

- }

- return true;

- }

-

- /**

- * Remove an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return bool True if the operation succeeded

- */

- function _delete($var)

- {

- return $this->memcache->delete($this->key_prefix . $var);

- }

-}

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2005 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* ACM Abstract Memory Class

-* @package acm

-*/

-abstract class phpbb_cache_driver_memory extends phpbb_cache_driver_base

-{

- var $key_prefix;

-

- var $vars = array();

- var $is_modified = false;

-

- var $sql_rowset = array();

- var $sql_row_pointer = array();

- var $cache_dir = '';

-

- /**

- * Set cache path

- */

- function __construct()

- {

- global $phpbb_root_path, $dbname, $table_prefix;

-

- $this->cache_dir = $phpbb_root_path . 'cache/';

- $this->key_prefix = substr(md5($dbname . $table_prefix), 0, 8) . '_';

-

- if (!isset($this->extension) || !extension_loaded($this->extension))

- {

- global $acm_type;

-

- trigger_error("Could not find required extension [{$this->extension}] for the ACM module $acm_type.", E_USER_ERROR);

- }

-

- if (isset($this->function) && !function_exists($this->function))

- {

- global $acm_type;

-

- trigger_error("The required function [{$this->function}] is not available for the ACM module $acm_type.", E_USER_ERROR);

- }

- }

-

- /**

- * Load global cache

- */

- function load()

- {

- // grab the global cache

- $this->vars = $this->_read('global');

-

- if ($this->vars !== false)

- {

- return true;

- }

-

- return false;

- }

-

- /**

- * Unload cache object

- */

- function unload()

- {

- $this->save();

- unset($this->vars);

- unset($this->sql_rowset);

- unset($this->sql_row_pointer);

-

- $this->vars = array();

- $this->sql_rowset = array();

- $this->sql_row_pointer = array();

- }

-

- /**

- * Save modified objects

- */

- function save()

- {

- if (!$this->is_modified)

- {

- return;

- }

-

- $this->_write('global', $this->vars, 2592000);

-

- $this->is_modified = false;

- }

-

- /**

- * Tidy cache

- */

- function tidy()

- {

- // cache has auto GC, no need to have any code here :)

-

- set_config('cache_last_gc', time(), true);

- }

-

- /**

- * Get saved cache object

- */

- function get($var_name)

- {

- if ($var_name[0] == '_')

- {

- if (!$this->_exists($var_name))

- {

- return false;

- }

-

- return $this->_read($var_name);

- }

- else

- {

- return ($this->_exists($var_name)) ? $this->vars[$var_name] : false;

- }

- }

-

- /**

- * Put data into cache

- */

- function put($var_name, $var, $ttl = 2592000)

- {

- if ($var_name[0] == '_')

- {

- $this->_write($var_name, $var, $ttl);

- }

- else

- {

- $this->vars[$var_name] = $var;

- $this->is_modified = true;

- }

- }

-

- /**

- * Purge cache data

- */

- function purge()

- {

- // Purge all phpbb cache files

- $dir = @opendir($this->cache_dir);

-

- if (!$dir)

- {

- return;

- }

-

- while (($entry = readdir($dir)) !== false)

- {

- if (strpos($entry, 'container_') !== 0 &&

- strpos($entry, 'url_matcher') !== 0 &&

- strpos($entry, 'sql_') !== 0 &&

- strpos($entry, 'data_') !== 0 &&

- strpos($entry, 'ctpl_') !== 0 &&

- strpos($entry, 'tpl_') !== 0)

- {

- continue;

- }

-

- $this->remove_file($this->cache_dir . $entry);

- }

- closedir($dir);

-

- unset($this->vars);

- unset($this->sql_rowset);

- unset($this->sql_row_pointer);

-

- $this->vars = array();

- $this->sql_rowset = array();

- $this->sql_row_pointer = array();

-

- $this->is_modified = false;

- }

-

-

- /**

- * Destroy cache data

- */

- function destroy($var_name, $table = '')

- {

- if ($var_name == 'sql' && !empty($table))

- {

- if (!is_array($table))

- {

- $table = array($table);

- }

-

- foreach ($table as $table_name)

- {

- // gives us the md5s that we want

- $temp = $this->_read('sql_' . $table_name);

-

- if ($temp === false)

- {

- continue;

- }

-

- // delete each query ref

- foreach ($temp as $md5_id => $void)

- {

- $this->_delete('sql_' . $md5_id);

- }

-

- // delete the table ref

- $this->_delete('sql_' . $table_name);

- }

-

- return;

- }

-

- if (!$this->_exists($var_name))

- {

- return;

- }

-

- if ($var_name[0] == '_')

- {

- $this->_delete($var_name);

- }

- else if (isset($this->vars[$var_name]))

- {

- $this->is_modified = true;

- unset($this->vars[$var_name]);

-

- // We save here to let the following cache hits succeed

- $this->save();

- }

- }

-

- /**

- * Check if a given cache entry exist

- */

- function _exists($var_name)

- {

- if ($var_name[0] == '_')

- {

- return $this->_isset($var_name);

- }

- else

- {

- if (!sizeof($this->vars))

- {

- $this->load();

- }

-

- return isset($this->vars[$var_name]);

- }

- }

-

- /**

- * Load cached sql query

- */

- function sql_load($query)

- {

- // Remove extra spaces and tabs

- $query = preg_replace('/[\n\r\s\t]+/', ' ', $query);

- $query_id = sizeof($this->sql_rowset);

-

- if (($result = $this->_read('sql_' . md5($query))) === false)

- {

- return false;

- }

-

- $this->sql_rowset[$query_id] = $result;

- $this->sql_row_pointer[$query_id] = 0;

-

- return $query_id;

- }

-

- /**

- * {@inheritDoc}

- */

- function sql_save(phpbb_db_driver $db, $query, $query_result, $ttl)

- {

- // Remove extra spaces and tabs

- $query = preg_replace('/[\n\r\s\t]+/', ' ', $query);

- $hash = md5($query);

-

- // determine which tables this query belongs to

- // Some queries use backticks, namely the get_database_size() query

- // don't check for conformity, the SQL would error and not reach here.

- if (!preg_match('/FROM \\(?(`?\\w+`?(?: \\w+)?(?:, ?`?\\w+`?(?: \\w+)?)*)\\)?/', $query, $regs))

- {

- // Bail out if the match fails.

- return $query_result;

- }

- $tables = array_map('trim', explode(',', $regs[1]));

-

- foreach ($tables as $table_name)

- {

- // Remove backticks

- $table_name = ($table_name[0] == '`') ? substr($table_name, 1, -1) : $table_name;

-

- if (($pos = strpos($table_name, ' ')) !== false)

- {

- $table_name = substr($table_name, 0, $pos);

- }

-

- $temp = $this->_read('sql_' . $table_name);

-

- if ($temp === false)

- {

- $temp = array();

- }

-

- $temp[$hash] = true;

-

- // This must never expire

- $this->_write('sql_' . $table_name, $temp, 0);

- }

-

- // store them in the right place

- $query_id = sizeof($this->sql_rowset);

- $this->sql_rowset[$query_id] = array();

- $this->sql_row_pointer[$query_id] = 0;

-

- while ($row = $db->sql_fetchrow($query_result))

- {

- $this->sql_rowset[$query_id][] = $row;

- }

- $db->sql_freeresult($query_result);

-

- $this->_write('sql_' . $hash, $this->sql_rowset[$query_id], $ttl);

-

- return $query_id;

- }

-

- /**

- * Ceck if a given sql query exist in cache

- */

- function sql_exists($query_id)

- {

- return isset($this->sql_rowset[$query_id]);

- }

-

- /**

- * Fetch row from cache (database)

- */

- function sql_fetchrow($query_id)

- {

- if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id]))

- {

- return $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++];

- }

-

- return false;

- }

-

- /**

- * Fetch a field from the current row of a cached database result (database)

- */

- function sql_fetchfield($query_id, $field)

- {

- if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id]))

- {

- return (isset($this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]][$field])) ? $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++][$field] : false;

- }

-

- return false;

- }

-

- /**

- * Seek a specific row in an a cached database result (database)

- */

- function sql_rowseek($rownum, $query_id)

- {

- if ($rownum >= sizeof($this->sql_rowset[$query_id]))

- {

- return false;

- }

-

- $this->sql_row_pointer[$query_id] = $rownum;

- return true;

- }

-

- /**

- * Free memory used for a cached database result (database)

- */

- function sql_freeresult($query_id)

- {

- if (!isset($this->sql_rowset[$query_id]))

- {

- return false;

- }

-

- unset($this->sql_rowset[$query_id]);

- unset($this->sql_row_pointer[$query_id]);

-

- return true;

- }

-

- /**

- * Removes/unlinks file

- */

- function remove_file($filename, $check = false)

- {

- if (!function_exists('phpbb_is_writable'))

- {

- global $phpbb_root_path, $phpEx;

- include($phpbb_root_path . 'includes/functions.' . $phpEx);

- }

-

- if ($check && !phpbb_is_writable($this->cache_dir))

- {

- // E_USER_ERROR - not using language entry - intended.

- trigger_error('Unable to remove files within ' . $this->cache_dir . '. Please check directory permissions.', E_USER_ERROR);

- }

-

- return @unlink($filename);

- }

-

- /**

- * Check if a cache var exists

- *

- * @access protected

- * @param string $var Cache key

- * @return bool True if it exists, otherwise false

- */

- function _isset($var)

- {

- // Most caches don't need to check

- return true;

- }

-}

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2005, 2009 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* ACM Null Caching

-* @package acm

-*/

-class phpbb_cache_driver_null extends phpbb_cache_driver_base

-{

- /**

- * Set cache path

- */

- function __construct()

- {

- }

-

- /**

- * Load global cache

- */

- function load()

- {

- return true;

- }

-

- /**

- * Unload cache object

- */

- function unload()

- {

- }

-

- /**

- * Save modified objects

- */

- function save()

- {

- }

-

- /**

- * Tidy cache

- */

- function tidy()

- {

- // This cache always has a tidy room.

- set_config('cache_last_gc', time(), true);

- }

-

- /**

- * Get saved cache object

- */

- function get($var_name)

- {

- return false;

- }

-

- /**

- * Put data into cache

- */

- function put($var_name, $var, $ttl = 0)

- {

- }

-

- /**

- * Purge cache data

- */

- function purge()

- {

- }

-

- /**

- * Destroy cache data

- */

- function destroy($var_name, $table = '')

- {

- }

-

- /**

- * Check if a given cache entry exist

- */

- function _exists($var_name)

- {

- return false;

- }

-

- /**

- * Load cached sql query

- */

- function sql_load($query)

- {

- return false;

- }

-

- /**

- * {@inheritDoc}

- */

- function sql_save(phpbb_db_driver $db, $query, $query_result, $ttl)

- {

- return $query_result;

- }

-

- /**

- * Ceck if a given sql query exist in cache

- */

- function sql_exists($query_id)

- {

- return false;

- }

-

- /**

- * Fetch row from cache (database)

- */

- function sql_fetchrow($query_id)

- {

- return false;

- }

-

- /**

- * Fetch a field from the current row of a cached database result (database)

- */

- function sql_fetchfield($query_id, $field)

- {

- return false;

- }

-

- /**

- * Seek a specific row in an a cached database result (database)

- */

- function sql_rowseek($rownum, $query_id)

- {

- return false;

- }

-

- /**

- * Free memory used for a cached database result (database)

- */

- function sql_freeresult($query_id)

- {

- return false;

- }

-}

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2011 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-if (!defined('PHPBB_ACM_REDIS_PORT'))

-{

- define('PHPBB_ACM_REDIS_PORT', 6379);

-}

-

-if (!defined('PHPBB_ACM_REDIS_HOST'))

-{

- define('PHPBB_ACM_REDIS_HOST', 'localhost');

-}

-

-/**

-* ACM for Redis

-*

-* Compatible with the php extension phpredis available

-* at https://github.com/nicolasff/phpredis

-*

-* @package acm

-*/

-class phpbb_cache_driver_redis extends phpbb_cache_driver_memory

-{

- var $extension = 'redis';

-

- var $redis;

-

- /**

- * Creates a redis cache driver.

- *

- * The following global constants affect operation:

- *

- * PHPBB_ACM_REDIS_HOST

- * PHPBB_ACM_REDIS_PORT

- * PHPBB_ACM_REDIS_PASSWORD

- * PHPBB_ACM_REDIS_DB

- *

- * There are no publicly documented constructor parameters.

- */

- function __construct()

- {

- // Call the parent constructor

- parent::__construct();

-

- $this->redis = new Redis();

-

- $args = func_get_args();

- if (!empty($args))

- {

- $ok = call_user_func_array(array($this->redis, 'connect'), $args);

- }

- else

- {

- $ok = $this->redis->connect(PHPBB_ACM_REDIS_HOST, PHPBB_ACM_REDIS_PORT);

- }

-

- if (!$ok)

- {

- trigger_error('Could not connect to redis server');

- }

-

- if (defined('PHPBB_ACM_REDIS_PASSWORD'))

- {

- if (!$this->redis->auth(PHPBB_ACM_REDIS_PASSWORD))

- {

- global $acm_type;

-

- trigger_error("Incorrect password for the ACM module $acm_type.", E_USER_ERROR);

- }

- }

-

- $this->redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_PHP);

- $this->redis->setOption(Redis::OPT_PREFIX, $this->key_prefix);

-

- if (defined('PHPBB_ACM_REDIS_DB'))

- {

- if (!$this->redis->select(PHPBB_ACM_REDIS_DB))

- {

- global $acm_type;

-

- trigger_error("Incorrect database for the ACM module $acm_type.", E_USER_ERROR);

- }

- }

- }

-

- /**

- * Unload the cache resources

- *

- * @return null

- */

- function unload()

- {

- parent::unload();

-

- $this->redis->close();

- }

-

- /**

- * Purge cache data

- *

- * @return null

- */

- function purge()

- {

- $this->redis->flushDB();

-

- parent::purge();

- }

-

- /**

- * Fetch an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return mixed Cached data

- */

- function _read($var)

- {

- return $this->redis->get($var);

- }

-

- /**

- * Store data in the cache

- *

- * @access protected

- * @param string $var Cache key

- * @param mixed $data Data to store

- * @param int $ttl Time-to-live of cached data

- * @return bool True if the operation succeeded

- */

- function _write($var, $data, $ttl = 2592000)

- {

- return $this->redis->setex($var, $ttl, $data);

- }

-

- /**

- * Remove an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return bool True if the operation succeeded

- */

- function _delete($var)

- {

- if ($this->redis->delete($var) > 0)

- {

- return true;

- }

- return false;

- }

-}

-

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2010 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* ACM for WinCache

-* @package acm

-*/

-class phpbb_cache_driver_wincache extends phpbb_cache_driver_memory

-{

- var $extension = 'wincache';

-

- /**

- * Purge cache data

- *

- * @return null

- */

- function purge()

- {

- wincache_ucache_clear();

-

- parent::purge();

- }

-

- /**

- * Fetch an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return mixed Cached data

- */

- function _read($var)

- {

- $success = false;

- $result = wincache_ucache_get($this->key_prefix . $var, $success);

-

- return ($success) ? $result : false;

- }

-

- /**

- * Store data in the cache

- *

- * @access protected

- * @param string $var Cache key

- * @param mixed $data Data to store

- * @param int $ttl Time-to-live of cached data

- * @return bool True if the operation succeeded

- */

- function _write($var, $data, $ttl = 2592000)

- {

- return wincache_ucache_set($this->key_prefix . $var, $data, $ttl);

- }

-

- /**

- * Remove an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return bool True if the operation succeeded

- */

- function _delete($var)

- {

- return wincache_ucache_delete($this->key_prefix . $var);

- }

-}

-<?php

-/**

-*

-* @package acm

-* @copyright (c) 2005, 2009 phpBB Group

-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* ACM for XCache

-* @package acm

-*

-* To use this module you need ini_get() enabled and the following INI settings configured as follows:

-* - xcache.var_size > 0

-* - xcache.admin.enable_auth = off (or xcache.admin.user and xcache.admin.password set)

-*

-*/

-class phpbb_cache_driver_xcache extends phpbb_cache_driver_memory

-{

- var $extension = 'XCache';

-

- function __construct()

- {

- parent::__construct();

-

- if (!function_exists('ini_get') || (int) ini_get('xcache.var_size') <= 0)

- {

- trigger_error('Increase xcache.var_size setting above 0 or enable ini_get() to use this ACM module.', E_USER_ERROR);

- }

- }

-

- /**

- * Purge cache data

- *

- * @return null

- */

- function purge()

- {

- // Run before for XCache, if admin functions are disabled it will terminate execution

- parent::purge();

-

- // If the admin authentication is enabled but not set up, this will cause a nasty error.

- // Not much we can do about it though.

- $n = xcache_count(XC_TYPE_VAR);

-

- for ($i = 0; $i < $n; $i++)

- {

- xcache_clear_cache(XC_TYPE_VAR, $i);

- }

- }

-

- /**

- * Fetch an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return mixed Cached data

- */

- function _read($var)

- {

- $result = xcache_get($this->key_prefix . $var);

-

- return ($result !== null) ? $result : false;

- }

-

- /**

- * Store data in the cache

- *

- * @access protected

- * @param string $var Cache key

- * @param mixed $data Data to store

- * @param int $ttl Time-to-live of cached data

- * @return bool True if the operation succeeded

- */

- function _write($var, $data, $ttl = 2592000)

- {

- return xcache_set($this->key_prefix . $var, $data, $ttl);

- }

-

- /**

- * Remove an item from the cache

- *

- * @access protected

- * @param string $var Cache key

- * @return bool True if the operation succeeded

- */

- function _delete($var)

- {

- return xcache_unset($this->key_prefix . $var);

- }

-

- /**

- * Check if a cache var exists

- *

- * @access protected

- * @param string $var Cache key

- * @return bool True if it exists, otherwise false

- */

- function _isset($var)

- {

- return xcache_isset($this->key_prefix . $var);

- }

-}