Version 3.3.4
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<?php
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/**
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* <pre>
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* Invision Power Services
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* IP.Board v3.2.3
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* This class acts as a cache layer, allowing you to store and retrieve data in
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* external cache sources such as memcache or APC
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* Last Updated: $Date: 2011-03-11 12:41:48 -0500 (Fri, 11 Mar 2011) $
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* </pre>
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*
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* @author $Author: ips_terabyte $
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* @copyright (c) 2001 - 2009 Invision Power Services, Inc.
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* @license This is NULLED!
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* @package IP.Board
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* @subpackage Kernel
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* @link http://hatynka.in
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* @since Friday 19th May 2006 17:33
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* @version $Revision: 8042 $
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*
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* Basic Usage Examples
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* <code>
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* $cache = new cache_lib( 'identifier' );
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* Update:
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* $cache->putInCache( 'key', 'value' [, 'ttl'] );
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* Remove
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* $cache->removeFromCache( 'key' );
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* Retrieve
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* $cache->getFromCache( 'key' );
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* </code>
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*
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*/
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class classCacheDiskcache implements interfaceCache
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{
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/**
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* Identifier
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*
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* @var string
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*/
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protected $identifier = '';
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/**
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* Constructor
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*
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* @param string Unique identifier
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* @return boolean Initiation successful
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*/
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public function __construct( $identifier='' )
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{
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if( !is_writeable( DOC_IPS_ROOT_PATH . 'cache' ) )
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{
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$this->crashed = true;
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return false;
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}
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if( !is_file( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php' ) )
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{
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$fh = @fopen( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php', 'wb' );
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if( $fh )
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{
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flock( $fh, LOCK_EX );
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fwrite( $fh, 0 );
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flock( $fh, LOCK_UN );
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fclose( $fh );
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}
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}
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$this->identifier = $identifier;
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}
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/**
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* Put data into remote cache store
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*
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* @param string Cache unique key
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* @param string Cache value to add
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* @param integer [Optional] Time to live
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* @return boolean Cache update successful
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*/
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public function putInCache( $key, $value, $ttl=0 )
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{
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$lock = @fopen( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php', 'wb' );
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if( $lock )
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{
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flock( $lock, LOCK_EX );
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}
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$fh = @fopen( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php', 'wb' );
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if( !$fh )
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{
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return FALSE;
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}
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$extra_flag = "";
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if( is_array( $value ) )
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{
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$value = serialize($value);
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$extra_flag = "\n" . '$is_array = 1;' . "\n\n";
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}
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$extra_flag .= "\n" . '$ttl = ' . $ttl . ";\n\n";
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$value = '"' . addslashes( $value ) . '"';
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$file_content = "<?" . "php\n\n" . '$value = ' . $value . ";\n" . $extra_flag . "\n?" . '>';
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flock( $fh, LOCK_EX );
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fwrite( $fh, $file_content );
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flock( $fh, LOCK_UN );
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fclose( $fh );
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@chmod( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php', IPS_FILE_PERMISSION );
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flock( $lock, LOCK_UN );
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fclose( $lock );
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return true;
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}
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/**
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* Retrieve a value from remote cache store
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*
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* @param string Cache unique key
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* @return mixed Cached value
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*/
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public function getFromCache( $key )
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{
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$lock = @fopen( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php', 'wb' );
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if( $lock )
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{
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flock( $lock, LOCK_SH );
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}
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$return_val = "";
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if( is_file( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' ) )
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{
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require DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php';/*noLibHook*/
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$return_val = stripslashes($value);
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if( !empty($is_array) )
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{
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$return_val = unserialize($return_val);
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}
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if( !empty($ttl) )
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{
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if( $mtime = filemtime( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' ) )
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{
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if( time() - $mtime > $ttl )
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{
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@unlink( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' );
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return FALSE;
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}
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}
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}
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}
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flock( $lock, LOCK_UN );
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fclose( $lock );
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return $return_val;
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}
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/**
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* Update value in remote cache store
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*
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* @param string Cache unique key
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* @param string Cache value to set
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* @param integer [Optional] Time to live
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* @return boolean Cache update successful
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*/
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public function updateInCache( $key, $value, $ttl=0 )
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{
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// The putInCache method opens in 'wb' mode, meaning
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// the file is truncated automatically, so no
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// need to delete - deletion is an unnecessary
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// expense with diskcache
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return $this->putInCache( $key, $value, $ttl );
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}
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/**
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* Remove a value in the remote cache store
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*
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* @param string Cache unique key
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* @return boolean Cache removal successful
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*/
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public function removeFromCache( $key )
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{
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$lock = @fopen( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php', 'wb' );
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if( $lock )
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{
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flock( $lock, LOCK_EX );
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}
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if( is_file( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' ) )
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{
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@unlink( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' );
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}
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flock( $lock, LOCK_UN );
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fclose( $lock );
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}
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/**
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* Not used by this library
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*
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* @return boolean Disconnect successful
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*/
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public function disconnect()
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{
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return true;
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}
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<?php
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/**
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* <pre>
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* Invision Power Services
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* IP.Board v3.3.4
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* This class acts as a cache layer, allowing you to store and retrieve data in
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* external cache sources such as memcache or APC
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* Last Updated: $Date: 2012-06-12 10:14:49 -0400 (Tue, 12 Jun 2012) $
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* </pre>
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*
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* @author $Author: bfarber $
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* @copyright (c) 2001 - 2009 Invision Power Services, Inc.
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* @license http://www.invisionpower.com/company/standards.php#license
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* @package IP.Board
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* @subpackage Kernel
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* @link http://www.invisionpower.com
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* @since Friday 19th May 2006 17:33
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* @version $Revision: 10914 $
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*
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* Basic Usage Examples
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* <code>
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* $cache = new cache_lib( 'identifier' );
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* Update:
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* $cache->putInCache( 'key', 'value' [, 'ttl'] );
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* Remove
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* $cache->removeFromCache( 'key' );
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* Retrieve
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* $cache->getFromCache( 'key' );
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* </code>
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*
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*/
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class classCacheDiskcache implements interfaceCache
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{
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/**
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* Identifier
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*
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* @var string
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*/
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protected $identifier = '';
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/**
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* Constructor
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*
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* @param string Unique identifier
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* @return @e boolean
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*/
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public function __construct( $identifier='' )
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{
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if( !is_writeable( DOC_IPS_ROOT_PATH . 'cache' ) )
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{
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$this->crashed = true;
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return false;
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}
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if( !is_file( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php' ) )
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{
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$fh = @fopen( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php', 'wb' );
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if( $fh )
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{
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flock( $fh, LOCK_EX );
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fwrite( $fh, 0 );
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flock( $fh, LOCK_UN );
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fclose( $fh );
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}
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}
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$this->identifier = $identifier;
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}
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/**
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* Put data into remote cache store
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*
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* @param string Cache unique key
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* @param string Cache value to add
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* @param integer [Optional] Time to live
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* @return @e boolean
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*/
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public function putInCache( $key, $value, $ttl=0 )
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{
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$lock = @fopen( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php', 'wb' );
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if( $lock )
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{
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flock( $lock, LOCK_EX );
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}
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$fh = @fopen( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php', 'wb' );
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if( !$fh )
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{
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return FALSE;
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}
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$extra_flag = "";
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if( is_array( $value ) )
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{
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$value = serialize($value);
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$extra_flag = "\n" . '$is_array = 1;' . "\n\n";
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}
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$extra_flag .= "\n" . '$ttl = ' . $ttl . ";\n\n";
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$value = '"' . addslashes( $value ) . '"';
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$file_content = "<?" . "php\n\n" . '$value = ' . $value . ";\n" . $extra_flag . "\n?" . '>';
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flock( $fh, LOCK_EX );
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fwrite( $fh, $file_content );
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flock( $fh, LOCK_UN );
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fclose( $fh );
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@chmod( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php', IPS_FILE_PERMISSION );
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flock( $lock, LOCK_UN );
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fclose( $lock );
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return true;
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}
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/**
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* Retrieve a value from remote cache store
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*
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* @param string Cache unique key
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* @return @e mixed
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*/
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public function getFromCache( $key )
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{
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$lock = @fopen( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php', 'wb' );
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if( $lock )
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{
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flock( $lock, LOCK_SH );
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}
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$return_val = "";
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if( is_file( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' ) )
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{
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require DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php';/*noLibHook*/
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$return_val = stripslashes($value);
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if( !empty($is_array) )
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{
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$return_val = unserialize($return_val);
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}
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if( !empty($ttl) )
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{
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if( $mtime = filemtime( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' ) )
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{
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if( time() - $mtime > $ttl )
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{
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@unlink( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' );
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return FALSE;
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}
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}
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}
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}
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flock( $lock, LOCK_UN );
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fclose( $lock );
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return $return_val;
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}
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/**
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* Update value in remote cache store
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*
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* @param string Cache unique key
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* @param string Cache value to set
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* @param integer [Optional] Time to live
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* @return @e boolean
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*/
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public function updateInCache( $key, $value, $ttl=0 )
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{
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// The putInCache method opens in 'wb' mode, meaning
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// the file is truncated automatically, so no
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// need to delete - deletion is an unnecessary
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// expense with diskcache
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return $this->putInCache( $key, $value, $ttl );
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}
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|
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/**
|
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* Remove a value in the remote cache store
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*
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* @param string Cache unique key
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* @return @e boolean
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*/
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public function removeFromCache( $key )
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{
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$lock = @fopen( DOC_IPS_ROOT_PATH . 'cache/diskcache_lock.php', 'wb' );
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if( $lock )
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{
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flock( $lock, LOCK_EX );
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}
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if( is_file( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' ) )
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{
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@unlink( DOC_IPS_ROOT_PATH . 'cache/' . md5( $this->identifier . $key ) . '.php' );
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}
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flock( $lock, LOCK_UN );
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fclose( $lock );
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return true;
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}
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/**
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* Not used by this library
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*
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* @return @e boolean
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*/
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public function disconnect()
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{
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return true;
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||||
}
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}
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Reference in new issue
Block a user