| Current Path : /storage/v11800/affypharma/public_html/wp-content/plugins/w3-total-cache/ |
Linux v11800 5.3.0-1023-aws #25~18.04.1-Ubuntu SMP Fri Jun 5 15:19:18 UTC 2020 aarch64
|
| Current File : /storage/v11800/affypharma/public_html/wp-content/plugins/w3-total-cache/Cache_File_Cleaner_Generic.php |
<?php
namespace W3TC;
/**
* Generic file cache cleaner class
*/
class Cache_File_Cleaner_Generic extends Cache_File_Cleaner {
/**
* Number of items processed
*
* @var integer
*/
var $processed_count = 0;
/**
* Cache expire time
*
* @var int
*/
var $_expire = 0;
private $hard_delete = false;
/**
* PHP5-style constructor
*
* @param array $config
*/
function __construct( $config = array() ) {
parent::__construct( $config );
$this->_expire = ( isset( $config['expire'] ) ? (int) $config['expire'] : 0 );
if ( ! $this->_expire ) {
$this->_expire = 0;
} elseif ( $this->_expire > W3TC_CACHE_FILE_EXPIRE_MAX ) {
$this->_expire = W3TC_CACHE_FILE_EXPIRE_MAX;
}
}
function _clean( $path, $remove = false ) {
$dir = false;
if ( is_dir( $path ) ) {
$dir = @opendir( $path );
}
if ( $dir ) {
while ( ( $entry = @readdir( $dir ) ) !== false ) {
if ( $entry == '.' || $entry == '..' ) {
continue;
}
$full_path = $path . DIRECTORY_SEPARATOR . $entry;
if ( substr( $entry, -4 ) === '_old' &&
!$this->is_old_file_expired( $full_path ) ) {
continue;
}
foreach ( $this->_exclude as $mask ) {
if ( fnmatch( $mask, basename( $entry ) ) ) {
continue 2;
}
}
if ( @is_dir( $full_path ) ) {
$this->_clean( $full_path );
} else {
$this->_clean_file( $entry, $full_path );
}
}
@closedir( $dir );
if ( $this->is_empty_dir( $path ) )
@rmdir( $path );
}
}
function _clean_file( $entry, $full_path ) {
if ( substr( $entry, -4 ) === '_old' ) {
$this->processed_count++;
@unlink( $full_path );
} elseif ( !$this->is_valid( $full_path ) ) {
$old_entry_path = $full_path . '_old';
$this->processed_count++;
if ( !@rename( $full_path, $old_entry_path ) ) {
// if we can delete old entry -
// do second attempt to store in old-entry file
if ( @unlink( $old_entry_path ) ) {
if ( !@rename( $full_path, $old_entry_path ) ) {
// last attempt - just remove entry
@unlink( $full_path );
}
}
}
}
}
/**
* Checks if file is valid
*
* @param string $file
* @return bool
*/
function is_valid( $file ) {
if ( $this->_expire <= 0 )
return false;
if ( file_exists( $file ) ) {
$ftime = @filemtime( $file );
if ( $ftime && $ftime > ( time() - $this->_expire ) ) {
return true;
}
}
return false;
}
function is_old_file_expired( $file ) {
$ftime = @filemtime( $file );
$expire = $this->_expire ? $this->_expire * 5 : W3TC_CACHE_FILE_EXPIRE_MAX;
if ( $ftime && $ftime < ( time() - $expire ) ) {
return true;
}
return false;
}
function is_empty_dir( $dir ) {
return ( $files = @scandir( $dir ) ) && count( $files ) <= 2;
}
}