AlkantarClanX12
Your IP : 3.145.177.173
<?php
namespace W3TC;
// Define repeated regex to simplify changes
define( 'MINIFY_AUTO_FILENAME_REGEX', '([a-zA-Z0-9-_]+)\\.(css|js)([?].*)?' );
define( 'MINIFY_MANUAL_FILENAME_REGEX', '([a-f0-9]+)\\.(.+)\\.(include(\\-(footer|body))?)\\.[a-f0-9]+\\.(css|js)' );
/**
* class Minify_MinifiedFileRequestHandler
*/
class Minify_MinifiedFileRequestHandler {
/**
* Config
*/
var $_config = null;
/**
* Tracks if an error has occurred.
*
* @var bool
*/
var $_error_occurred = false;
/**
* PHP5 constructor
*/
function __construct() {
$this->_config = Dispatcher::config();
}
/**
* Runs minify
*
* @param string|null $file
*
* @return void
*/
function process( $file = NULL, $quiet = false ) {
/**
* Check for rewrite test request
*/
$rewrite_marker = 'rewrite_test.css';
if ( substr( $file, strlen( $file ) - strlen( $rewrite_marker ) ) ==
$rewrite_marker ) {
echo 'Minify OK';
exit();
}
$filelength_test_marker = 'XXX.css';
if ( substr( $file, strlen( $file ) - strlen( $filelength_test_marker ) ) ==
$filelength_test_marker ) {
$cache = $this->_get_cache();
header( 'Content-type: text/css' );
if ( ! $cache->store( basename( $file ), array( 'content' => 'content ok' ) ) ) {
echo 'error storing';
} else {
if ( ( function_exists( 'brotli_compress' ) &&
$this->_config->get_boolean( 'browsercache.enabled' ) &&
$this->_config->get_boolean( 'browsercache.cssjs.brotli' ) ) )
if ( !$cache->store( basename( $file ) . '_br',
array( 'content' => brotli_compress( 'content ok' ) ) ) ) {
echo 'error storing';
exit();
}
if ( ( function_exists( 'gzencode' ) &&
$this->_config->get_boolean( 'browsercache.enabled' ) &&
$this->_config->get_boolean( 'browsercache.cssjs.compression' ) ) )
if ( !$cache->store( basename( $file ) . '_gzip',
array( 'content' => gzencode( 'content ok' ) ) ) ) {
echo 'error storing';
exit();
}
$v = $cache->fetch( basename( $file ) );
if ( $v['content'] == 'content ok' )
echo 'content ok';
else
echo 'error storing';
}
exit();
}
// remove querystring
if ( preg_match( '~(.+)(\?x[0-9]{5})$~', $file, $m ) )
$file = $m[1];
// remove blog_id
$levels = '';
if ( defined( 'W3TC_BLOG_LEVELS' ) ) {
for ( $n = 0; $n < W3TC_BLOG_LEVELS; $n++ )
$levels .= '[0-9]+\/';
}
if ( preg_match( '~^(' . $levels . '[0-9]+)\/(.+)$~', $file, $matches ) )
$file = $matches[2];
// normalize according to browsercache
$file = Dispatcher::requested_minify_filename( $this->_config, $file );
// parse file
$hash = '';
$matches = null;
$location = '';
$type = '';
if ( preg_match( '~^' . MINIFY_AUTO_FILENAME_REGEX .'$~', $file, $matches ) ) {
list( , $hash, $type ) = $matches;
} elseif ( preg_match( '~^' . MINIFY_MANUAL_FILENAME_REGEX . '$~', $file, $matches ) ) {
list( , $theme, $template, $location, , , $type ) = $matches;
} else {
return $this->finish_with_error( sprintf( 'Bad file param format: "%s"', $file ), $quiet, false );
}
/**
* Set cache engine
*/
$cache = $this->_get_cache();
\W3TCL\Minify\Minify::setCache( $cache );
/**
* Set cache ID
*/
$cache_id = $this->get_cache_id( $file );
\W3TCL\Minify\Minify::setCacheId( $file );
/**
* Set logger
*/
\W3TCL\Minify\Minify_Logger::setLogger( array(
$this,
'debug_error' ) );
/**
* Set options
*/
$browsercache = $this->_config->get_boolean( 'browsercache.enabled' );
$serve_options = array_merge( $this->_config->get_array( 'minify.options' ), array(
'debug' => $this->_config->get_boolean( 'minify.debug' ),
'maxAge' => $this->_config->get_integer( 'browsercache.cssjs.lifetime' ),
'encodeOutput' => ( $browsercache &&
!defined( 'W3TC_PAGECACHE_OUTPUT_COMPRESSION_OFF' ) &&
!$quiet &&
( $this->_config->get_boolean( 'browsercache.cssjs.compression' ) ||
$this->_config->get_boolean( 'browsercache.cssjs.brotli' ) ) ),
'bubbleCssImports' => ( $this->_config->get_string( 'minify.css.imports' ) == 'bubble' ),
'processCssImports' => ( $this->_config->get_string( 'minify.css.imports' ) == 'process' ),
'cacheHeaders' => array(
'use_etag' => ( $browsercache && $this->_config->get_boolean( 'browsercache.cssjs.etag' ) ),
'expires_enabled' => ( $browsercache && $this->_config->get_boolean( 'browsercache.cssjs.expires' ) ),
'cacheheaders_enabled' => ( $browsercache && $this->_config->get_boolean( 'browsercache.cssjs.cache.control' ) ),
'cacheheaders' => $this->_config->get_string( 'browsercache.cssjs.cache.policy' )
),
'disable_304' => $quiet, // when requested for service needs - need content instead of 304
'quiet' => $quiet
) );
/**
* Set sources
*/
if ( $hash ) {
$_GET['f_array'] = $this->minify_filename_to_filenames_for_minification( $hash, $type );
$_GET['ext'] = $type;
} else {
$_GET['g'] = $location;
$serve_options['minApp']['groups'] = $this->get_groups( $theme, $template, $type );
}
/**
* Set minifier
*/
$w3_minifier = Dispatcher::component( 'Minify_ContentMinifier' );
if ( $type == 'js' ) {
$minifier_type = 'application/x-javascript';
switch ( true ) {
case ( $hash && $this->_config->get_string( 'minify.js.method' ) == 'combine' ):
case ( $location == 'include' && $this->_config->get_boolean( 'minify.js.combine.header' ) ):
case ( $location == 'include-body' && $this->_config->get_boolean( 'minify.js.combine.body' ) ):
case ( $location == 'include-footer' && $this->_config->get_boolean( 'minify.js.combine.footer' ) ):
$engine = 'combinejs';
break;
default:
$engine = $this->_config->get_string( 'minify.js.engine' );
if ( !$w3_minifier->exists( $engine ) || !$w3_minifier->available( $engine ) ) {
$engine = 'js';
}
break;
}
} elseif ( $type == 'css' ) {
$minifier_type = 'text/css';
if ( ( $hash || $location == 'include' ) && $this->_config->get_string( 'minify.css.method' ) == 'combine' ) {
$engine = 'combinecss';
} else {
$engine = $this->_config->get_string( 'minify.css.engine' );
if ( !$w3_minifier->exists( $engine ) || !$w3_minifier->available( $engine ) ) {
$engine = 'css';
}
}
}
/**
* Initialize minifier
*/
$w3_minifier->init( $engine );
$serve_options['minifiers'][$minifier_type] = $w3_minifier->get_minifier( $engine );
$serve_options['minifierOptions'][$minifier_type] = $w3_minifier->get_options( $engine );
/**
* Send X-Powered-By header
*/
if ( !$quiet && $browsercache && $this->_config->get_boolean( 'browsercache.cssjs.w3tc' ) ) {
@header( 'X-Powered-By: ' . Util_Environment::w3tc_header() );
}
if ( empty( Util_Request::get( 'f_array' ) ) && empty( Util_Request::get_string( 'g' ) ) ) {
return $this->finish_with_error( 'Nothing to minify', $quiet, false );
}
// Minify
$serve_options = apply_filters(
'w3tc_minify_file_handler_minify_options',
$serve_options );
$return = array();
try {
$return = \W3TCL\Minify\Minify::serve( 'MinApp', $serve_options );
} catch ( \Exception $exception ) {
return $this->finish_with_error( $exception->getMessage(), $quiet );
}
if ( !is_null( \W3TCL\Minify\Minify::$recoverableError ) )
$this->_handle_error( \W3TCL\Minify\Minify::$recoverableError );
$state = Dispatcher::config_state_master();
if ( !$this->_error_occurred && $state->get_boolean( 'minify.show_note_minify_error' ) ) {
$error_file = $state->get_string( 'minify.error.file' );
if ( $error_file == $file ) {
$state->set( 'minify.show_note_minify_error', false );
$state->save();
}
}
return $return;
}
public function w3tc_usage_statistics_of_request( $storage ) {
$stats = \W3TCL\Minify\Minify::getUsageStatistics();
if ( count( $stats ) > 0 ) {
$storage->counter_add( 'minify_requests_total', 1 );
if ( $stats['content_type'] == 'text/css' ) {
$storage->counter_add( 'minify_original_length_css',
(int)( $stats['content_original_length'] / 102.4 ) );
$storage->counter_add( 'minify_output_length_css',
(int)( $stats['content_output_length'] / 102.4 ) );
} else {
$storage->counter_add( 'minify_original_length_js',
(int)( $stats['content_original_length'] / 102.4 ) );
$storage->counter_add( 'minify_output_length_js',
(int)( $stats['content_output_length'] / 102.4 ) );
}
}
}
/**
* Returns size statistics about cache files
*/
public function get_stats_size( $timeout_time ) {
$cache = $this->_get_cache();
if ( method_exists( $cache, 'get_stats_size' ) )
return $cache->get_stats_size( $timeout_time );
return array();
}
/**
* Flushes cache.
*
* @return bool
*/
public function flush( $extras = array() ) {
$cache = $this->_get_cache();
// Used to debug - which plugin calls flush all the time and breaks performance.
if ( $this->_config->get_boolean( 'minify.debug' ) ) {
Minify_Core::log( 'Minify flush called from' );
Minify_Core::log( wp_json_encode( debug_backtrace() ) );
}
/*
* Cleanup of map too often is risky since breaks all old minify urls.
* Particularly minified urls in browsercached/cdn cached html becomes invalid.
*/
if ( isset( $extras['ui_action'] ) && 'flush_button' === $extras['ui_action'] ) {
global $wpdb;
$wpdb->query( "DELETE FROM $wpdb->options WHERE `option_name` = 'w3tc_minify' OR `option_name` LIKE 'w3tc_minify_%'" );
}
return $cache->flush();
}
/**
* Returns custom data storage for minify file, based on url
*
* @param string $url
* @return mixed
*/
function get_url_custom_data( $url ) {
if ( preg_match( '~/' . MINIFY_AUTO_FILENAME_REGEX .'$~', $url, $matches ) ) {
list( , $hash, $type ) = $matches;
$key = $this->get_custom_data_key( $hash, $type );
return $this->_cache_get( $key );
}
return null;
}
/**
* Returns custom data storage for minify file
*
* @param string $file
* @param mixed $data
*/
function set_file_custom_data( $file, $data ) {
if ( preg_match( '~' . MINIFY_AUTO_FILENAME_REGEX .'$~', $file, $matches ) ) {
list( , $hash, $type ) = $matches;
$key = $this->get_custom_data_key( $hash, $type );
$this->_cache_set( $key, $data );
}
}
/**
* Returns minify groups
*
* @param string $theme
* @param string $template
* @param string $type
* @return array
*/
function get_groups( $theme, $template, $type ) {
$result = array();
switch ( $type ) {
case 'css':
$groups = $this->_config->get_array( 'minify.css.groups' );
break;
case 'js':
$groups = $this->_config->get_array( 'minify.js.groups' );
break;
default:
return $result;
}
if ( isset( $groups[$theme]['default'] ) ) {
$locations = (array) $groups[$theme]['default'];
} else {
$locations = array();
}
if ( $template != 'default' && isset( $groups[$theme][$template] ) ) {
$locations = array_merge_recursive( $locations, (array) $groups[$theme][$template] );
}
foreach ( $locations as $location => $config ) {
if ( !empty( $config['files'] ) ) {
foreach ( (array) $config['files'] as $url ) {
if ( !Util_Environment::is_url( $url ) )
$url = Util_Environment::home_domain_root_url() . '/' .
ltrim( $url, '/' );
$file = Util_Environment::url_to_docroot_filename( $url );
if ( is_null( $file ) ) {
// it's external url
$precached_file = $this->_precache_file( $url, $type );
if ( $precached_file ) {
$result[$location][$url] = $precached_file;
} else {
Minify_Core::debug_error( sprintf( 'Unable to cache remote url: "%s"', $url ) );
}
} else {
$path = Util_Environment::document_root() . '/' . $file;
if ( file_exists( $path ) ) {
$result[$location][$file] = '//' . $file;
} else {
Minify_Core::debug_error( sprintf( 'File "%s" doesn\'t exist', $path ) );
}
}
}
}
}
return $result;
}
/**
* Returns minify cache ID
*
* @param string $file
* @return string
*/
function get_cache_id( $file ) {
return $file;
}
/**
* Returns array of group sources
*
* @param string $theme
* @param string $template
* @param string $location
* @param string $type
* @return array
*/
function get_sources_group( $theme, $template, $location, $type ) {
$sources = array();
$groups = $this->get_groups( $theme, $template, $type );
if ( isset( $groups[$location] ) ) {
$files = (array) $groups[$location];
$document_root = Util_Environment::document_root();
foreach ( $files as $file ) {
if ( is_a( $file, '\W3TCL\Minify\Minify_Source' ) ) {
$path = $file->filepath;
} else {
$path = rtrim( $document_root, '/' ) . '/' . ltrim( $file, '/' );
}
$sources[] = $path;
}
}
return $sources;
}
/**
* Returns ID key for group
*
* @param unknown $theme
* @param unknown $template
* @param unknown $location
* @param unknown $type
* @return string
*/
function get_id_key_group( $theme, $template, $location, $type ) {
return sprintf( '%s/%s.%s.%s.id', $theme, $template, $location, $type );
}
/**
* Returns id for group
*
* @param string $theme
* @param string $template
* @param string $location
* @param string $type
* @return integer
*/
function get_id_group( $theme, $template, $location, $type ) {
$key = $this->get_id_key_group( $theme, $template, $location, $type );
$id = $this->_cache_get( $key );
if ( $id === false ) {
$sources = $this->get_sources_group( $theme, $template, $location, $type );
if ( count( $sources ) ) {
$id = $this->_generate_id( $sources, $type );
if ( $id ) {
$this->_cache_set( $key, $id );
}
}
}
return $id;
}
/**
* Returns custom files key
*
* @param string $hash
* @param string $type
* @return string
*/
function get_custom_data_key( $hash, $type ) {
return sprintf( '%s.%s.customdata', $hash, $type );
}
/**
* Returns custom files
*
* @param string $hash
* @param string $type
* @return array
*/
function minify_filename_to_filenames_for_minification( $hash, $type ) {
// if bad data passed as get parameter - it shouldn't fire internal errors
try {
$files = Minify_Core::minify_filename_to_urls_for_minification(
$hash, $type );
} catch ( \Exception $e ) {
$files = array();
}
$result = array();
if ( is_array( $files ) && count( $files ) > 0 ) {
foreach ( $files as $file ) {
$docroot_filename = Util_Environment::url_to_docroot_filename( $file );
if ( Util_Environment::is_url( $file ) && is_null( $docroot_filename ) ) {
// it's external url
$precached_file = $this->_precache_file( $file, $type );
if ( $precached_file ) {
$result[] = $precached_file;
} else {
Minify_Core::debug_error( sprintf( 'Unable to cache remote file: "%s"', $file ) );
}
} else {
$path = Util_Environment::docroot_to_full_filename( $docroot_filename );
if ( @file_exists( $path ) ) {
$result[] = $file;
} else {
Minify_Core::debug_error( sprintf( 'File "%s" doesn\'t exist', $file ) );
}
}
}
} else {
Minify_Core::debug_error( sprintf( 'Unable to fetch custom files list: "%s.%s"', $hash, $type ), false, 404 );
}
if ( $this->_config->get_boolean( 'minify.debug' ) ) {
Minify_Core::log( implode( "\n", $files ) );
}
return $result;
}
/**
* Sends error response
*
* @param string $error
* @param boolean $handle
* @param integer $status
* @return void
*/
function finish_with_error( $error, $quiet = false, $report_about_error = true ) {
$this->_error_occurred = true;
Minify_Core::debug_error( $error );
if ( $report_about_error ) {
$this->_handle_error( $error );
}
$message = '<h1>W3TC Minify Error</h1>';
if ( $this->_config->get_boolean( 'minify.debug' ) ) {
$message .= sprintf( '<p>%s.</p>', $error );
} else {
$message .= '<p>Enable debug mode to see error message.</p>';
}
if ( $quiet ) {
return array(
'content' => $message
);
}
if ( defined( 'W3TC_IN_MINIFY' ) ) {
status_header( 400 );
echo esc_html( $message );
die();
}
}
public function debug_error( $error ) {
Minify_Core::debug_error( $error );
}
/**
* Pre-caches external file
*
* @param string $url
* @param string $type
* @return string
*/
function _precache_file( $url, $type ) {
$lifetime = $this->_config->get_integer( 'minify.lifetime' );
$cache_path = sprintf( '%s/minify_%s.%s', Util_Environment::cache_blog_dir( 'minify' ), md5( $url ), $type );
if ( !file_exists( $cache_path ) || @filemtime( $cache_path ) < ( time() - $lifetime ) ) {
if ( !@is_dir( dirname( $cache_path ) ) ) {
Util_File::mkdir_from_safe( dirname( $cache_path ), W3TC_CACHE_DIR );
}
// google-fonts (most used for external inclusion)
// doesnt return full content (unicode-range) for simple useragents
Util_Http::download( $url, $cache_path,
array( 'user-agent' =>
'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.92' ) );
}
return file_exists( $cache_path ) ? $this->_get_minify_source( $cache_path, $url ) : false;
}
/**
* Returns minify source
*
* @param unknown $file_path
* @param unknown $url
* @return Minify_Source
*/
function _get_minify_source( $file_path, $url ) {
return new \W3TCL\Minify\Minify_Source( array(
'filepath' => $file_path,
'minifyOptions' => array(
'prependRelativePath' => $url
)
) );
}
/**
* Returns minify cache object
*
* @return object
*/
function _get_cache() {
static $cache = null;
if ( is_null( $cache ) ) {
$inner_cache = null;
switch ( $this->_config->get_string( 'minify.engine' ) ) {
case 'memcached':
$config = array(
'blog_id' => Util_Environment::blog_id(),
'instance_id' => Util_Environment::instance_id(),
'host' => Util_Environment::host(),
'module' => 'minify',
'servers' => $this->_config->get_array( 'minify.memcached.servers' ),
'persistent' => $this->_config->get_boolean( 'minify.memcached.persistent' ),
'aws_autodiscovery' => $this->_config->get_boolean( 'minify.memcached.aws_autodiscovery' ),
'username' => $this->_config->get_string( 'minify.memcached.username' ),
'password' => $this->_config->get_string( 'minify.memcached.password' ),
'binary_protocol' => $this->_config->get_boolean( 'minify.memcached.binary_protocol' )
);
if ( class_exists( 'Memcached' ) ) {
$inner_cache = new Cache_Memcached( $config );
} elseif ( class_exists( 'Memcache' ) ) {
$inner_cache = new Cache_Memcache( $config );
}
break;
case 'redis':
$config = array(
'blog_id' => Util_Environment::blog_id(),
'instance_id' => Util_Environment::instance_id(),
'host' => Util_Environment::host(),
'module' => 'minify',
'servers' => $this->_config->get_array( 'minify.redis.servers' ),
'verify_tls_certificates' => $this->_config->get_boolean( 'minify.redis.verify_tls_certificates' ),
'persistent' => $this->_config->get_boolean( 'minify.redis.persistent' ),
'timeout' => $this->_config->get_integer( 'minify.redis.timeout' ),
'retry_interval' => $this->_config->get_integer( 'minify.redis.retry_interval' ),
'read_timeout' => $this->_config->get_integer( 'minify.redis.read_timeout' ),
'dbid' => $this->_config->get_integer( 'minify.redis.dbid' ),
'password' => $this->_config->get_string( 'minify.redis.password' )
);
$inner_cache = new Cache_Redis( $config );
break;
case 'apc':
$config = array(
'blog_id' => Util_Environment::blog_id(),
'instance_id' => Util_Environment::instance_id(),
'host' => Util_Environment::host(),
'module' => 'minify'
);
if ( function_exists( 'apcu_store' ) ) {
$inner_cache = new Cache_Apcu( $config );
} elseif ( function_exists( 'apc_store' ) ) {
$inner_cache = new Cache_Apc( $config );
}
break;
case 'eaccelerator':
$config = array(
'blog_id' => Util_Environment::blog_id(),
'instance_id' => Util_Environment::instance_id(),
'host' => Util_Environment::host(),
'module' => 'minify'
);
$inner_cache = new Cache_Eaccelerator( $config );
break;
case 'xcache':
$config = array(
'blog_id' => Util_Environment::blog_id(),
'instance_id' => Util_Environment::instance_id(),
'host' => Util_Environment::host(),
'module' => 'minify'
);
$inner_cache = new Cache_Xcache( $config );
break;
case 'wincache':
$config = array(
'blog_id' => Util_Environment::blog_id(),
'instance_id' => Util_Environment::instance_id(),
'host' => Util_Environment::host(),
'module' => 'minify'
);
$inner_cache = new Cache_Wincache( $config );
break;
}
if ( !is_null( $inner_cache ) ) {
$cache = new \W3TCL\Minify\Minify_Cache_W3TCDerived( $inner_cache );
} else {
// case 'file' or fallback
$cache = new \W3TCL\Minify\Minify_Cache_File(
Util_Environment::cache_blog_minify_dir(),
array(
'.htaccess',
'index.html',
'*_old'
),
$this->_config->get_boolean( 'minify.file.locking' ),
$this->_config->get_integer( 'timelimit.cache_flush' ),
( Util_Environment::blog_id() == 0 ? W3TC_CACHE_MINIFY_DIR : null )
);
}
}
return $cache;
}
/**
* Handle minify error
*
* @param string $error
* @return void
*/
function _handle_error( $error ) {
$notification = $this->_config->get_string( 'minify.error.notification' );
if ( $notification ) {
$file = Util_Request::get_string( 'file' );
$state = Dispatcher::config_state_master();
if ( $file ) {
$state->set( 'minify.error.file', $file );
}
if ( stristr( $notification, 'admin' ) !== false ) {
$state->set( 'minify.error.last', $error );
$state->set( 'minify.show_note_minify_error', true );
}
if ( stristr( $notification, 'email' ) !== false ) {
$last = $state->get_integer( 'minify.error.notification.last' );
/**
* Prevent email flood: send email every 5 min
*/
if ( ( time() - $last ) > 300 ) {
$state->set( 'minify.error.notification.last', time() );
$this->_send_notification();
}
}
$state->save();
}
}
/**
* Send E-mail notification when error occurred
*
* @return boolean
*/
function _send_notification() {
$from_email = 'wordpress@' . Util_Environment::host();
$from_name = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
$to_name = $to_email = get_option( 'admin_email' );
$body = @file_get_contents( W3TC_INC_DIR . '/email/minify_error_notification.php' );
$headers = array(
sprintf( 'From: "%s" <%s>', addslashes( $from_name ), $from_email ),
sprintf( 'Reply-To: "%s" <%s>', addslashes( $to_name ), $to_email ),
'Content-Type: text/html; charset=utf-8'
);
@set_time_limit( $this->_config->get_integer( 'timelimit.email_send' ) );
$result = @wp_mail( $to_email, 'W3 Total Cache Error Notification', $body, implode( "\n", $headers ) );
return $result;
}
/**
* Generates file ID
*
* @param array $sources
* @param string $type
* @return string
*/
function _generate_id( $sources, $type ) {
$values =array();
foreach ( $sources as $source )
if ( is_string( $source ) )
$values[] = $source;
else
$values[] = $source->filepath;
foreach ( $sources as $source ) {
if ( is_string( $source ) && file_exists( $source ) ) {
$data = @file_get_contents( $source );
if ( $data !== false ) {
$values[] = md5( $data );
} else {
return false;
}
} else {
$headers = @get_headers( $source->minifyOptions['prependRelativePath'] );
if ( strpos( $headers[0], '200' ) !== false ) {
$segments = explode( '.', $source->minifyOptions['prependRelativePath'] );
$ext = strtolower( array_pop( $segments ) );
$pc_source = $this->_precache_file( $source->minifyOptions['prependRelativePath'], $ext );
$data = @file_get_contents( $pc_source->filepath );
if ( $data !== false ) {
$values[] = md5( $data );
} else {
return false;
}
}else {
return false;
}
}
}
$keys = array(
'minify.debug',
'minify.engine',
'minify.options',
'minify.symlinks',
);
if ( $type == 'js' ) {
$engine = $this->_config->get_string( 'minify.js.engine' );
if ( $this->_config->get_boolean( 'minify.auto' ) ) {
$keys[] = 'minify.js.method';
} else {
array_merge(
$keys,
array(
'minify.js.combine.header',
'minify.js.combine.body',
'minify.js.combine.footer',
)
);
}
switch ( $engine ) {
case 'js':
$keys = array_merge( $keys, array(
'minify.js.strip.comments',
'minify.js.strip.crlf',
) );
break;
case 'yuijs':
$keys = array_merge( $keys, array(
'minify.yuijs.options.line-break',
'minify.yuijs.options.nomunge',
'minify.yuijs.options.preserve-semi',
'minify.yuijs.options.disable-optimizations',
) );
break;
case 'ccjs':
$keys = array_merge( $keys, array(
'minify.ccjs.options.compilation_level',
'minify.ccjs.options.formatting',
) );
break;
}
} elseif ( $type == 'css' ) {
$engine = $this->_config->get_string( 'minify.css.engine' );
$keys[] = 'minify.css.method';
switch ( $engine ) {
case 'css':
$keys = array_merge( $keys, array(
'minify.css.strip.comments',
'minify.css.strip.crlf',
'minify.css.imports',
) );
break;
case 'yuicss':
$keys = array_merge( $keys, array(
'minify.yuicss.options.line-break',
) );
break;
case 'csstidy':
$keys = array_merge( $keys, array(
'minify.csstidy.options.remove_bslash',
'minify.csstidy.options.compress_colors',
'minify.csstidy.options.compress_font-weight',
'minify.csstidy.options.lowercase_s',
'minify.csstidy.options.optimise_shorthands',
'minify.csstidy.options.remove_last_;',
'minify.csstidy.options.remove_space_before_important',
'minify.csstidy.options.case_properties',
'minify.csstidy.options.sort_properties',
'minify.csstidy.options.sort_selectors',
'minify.csstidy.options.merge_selectors',
'minify.csstidy.options.discard_invalid_selectors',
'minify.csstidy.options.discard_invalid_properties',
'minify.csstidy.options.css_level',
'minify.csstidy.options.preserve_css',
'minify.csstidy.options.timestamp',
'minify.csstidy.options.template',
) );
break;
}
}
foreach ( $keys as $key ) {
$values[] = $this->_config->get( $key );
}
$id = substr( md5( implode( '', $this->_flatten_array( $values ) ) ), 0, 6 );
return $id;
}
/**
* Takes a multidimensional array and makes it singledimensional
*
* @param unknown $values
* @return array
*/
private function _flatten_array( $values ) {
$flatten = array();
foreach ( $values as $key => $value ) {
if ( is_array( $value ) )
$flatten = array_merge( $flatten, $this->_flatten_array( $value ) );
else
$flatten[$key] = $value;
}
return $flatten;
}
/**
* Returns cache data
*
* @param string $key
* @return bool|array
*/
function _cache_get( $key ) {
$cache = $this->_get_cache();
$data = $cache->fetch( $key );
if ( isset( $data['content'] ) ) {
$value = @unserialize( $data['content'] );
return $value;
}
return false;
}
/**
* Sets cache date
*
* @param string $key
* @param string $value
* @return boolean
*/
function _cache_set( $key, $value ) {
$cache = $this->_get_cache();
return $cache->store( $key, array( 'content' => serialize( $value ) ) );
}
}