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| Dir : /home/trave494/live2news.com/wp-content/plugins/w3-total-cache/Cdn_Util.php |
<?php
/**
* File: Cdn_Util.php
*
* @package W3TC
*/
namespace W3TC;
/**
* Class: Cdn_Util
*/
class Cdn_Util {
/**
* Check whether $engine is correct CDN engine
*
* @param string $engine CDN engine.
*
* @return bool
*/
public static function is_engine( $engine ) {
return in_array(
$engine,
array(
'akamai',
'att',
'azure',
'cf',
'cf2',
'cotendo',
'edgecast',
'ftp',
'google_drive',
'highwinds',
'limelight',
'mirror',
'rscf',
'rackspace_cdn',
's3',
's3_compatible',
'stackpath',
'stackpath2',
),
true
);
}
/**
* Returns true if CDN engine is mirror.
*
* @param string $engine CDN engine.
* @static
*
* @return bool
*/
public static function is_engine_mirror( $engine ) {
return in_array(
$engine,
array(
'mirror',
'cotendo',
'cf2',
'akamai',
'edgecast',
'att',
'highwinds',
'limelight',
'rackspace_cdn',
'stackpath',
'stackpath2',
'bunnycdn',
),
true
);
}
/**
* Returns true if CDN engine is mirror.
*
* @param string $engine CDN engine.
*
* @return bool
*/
public static function is_engine_push( $engine ) {
return ! self::is_engine_mirror( $engine );
}
/**
* Returns true if CDN has purge all support.
*
* @param unknown $engine CDN engine.
*
* @return bool
*/
public static function can_purge_all( $engine ) {
return in_array(
$engine,
array(
'att',
'bunnycdn',
'cf2',
'cotendo',
'edgecast',
'highwinds',
'limelight',
'stackpath',
'stackpath2',
),
true
);
}
/**
* Returns true if CDN engine is supporting purge.
*
* @param string $engine CDN engine.
*
* @return bool
*/
public static function can_purge( $engine ) {
return in_array(
$engine,
array(
'akamai',
'att',
'azure',
'cf',
'cf2',
'cotendo',
'edgecast',
'ftp',
'highwinds',
'limelight',
'rscf',
's3',
's3_compatible',
'stackpath',
'stackpath2',
),
true
);
}
/**
* Returns true if CDN supports realtime purge. That is purging on post changes, comments etc.
*
* @param unknown $engine CDN engine.
*
* @return bool
*/
public static function supports_realtime_purge( $engine ) {
return ! in_array( $engine, array( 'cf2' ), true );
}
/**
* Search files.
*
* @param string $search_dir Search path.
* @param string $base_dir Base path.
* @param string $mask Mask value.
* @param boolean $recursive Recursive flag.
*
* @return array
*/
public static function search_files( $search_dir, $base_dir, $mask = '*.*', $recursive = true ) {
static $stack = array();
$files = array();
$ignore = array(
'.svn',
'.git',
'.DS_Store',
'CVS',
'Thumbs.db',
'desktop.ini',
);
$dir = @opendir( $search_dir ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
if ( $dir ) {
// phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition, WordPress.PHP.NoSilencedErrors.Discouraged
while ( ( $entry = @readdir( $dir ) ) !== false ) {
if ( '.' !== $entry && '..' !== $entry && ! in_array( $entry, $ignore, true ) ) {
$path = $search_dir . '/' . $entry;
if ( @is_dir( $path ) && $recursive ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
array_push( $stack, $entry );
$files = array_merge(
$files,
self::search_files(
$path,
$base_dir,
$mask,
$recursive
)
);
array_pop( $stack );
} else {
$regexp = '~^(' . self::get_regexp_by_mask( $mask ) . ')$~i';
if ( preg_match( $regexp, $entry ) ) {
$tmp = '' !== $base_dir ? $base_dir . '/' : '';
$p = implode( '/', $stack );
$tmp .= '' !== $p ? $p . '/' : '';
$files[] = $tmp . $entry;
}
}
}
}
@closedir( $dir ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
}
return $files;
}
/**
* Returns regexp by mask.
*
* @param string $mask Mask pattern.
*
* @return string
*/
public static function get_regexp_by_mask( $mask ) {
$mask = trim( $mask );
$mask = Util_Environment::preg_quote( $mask );
$mask = str_replace(
array(
'\*',
'\?',
';',
),
array(
'@ASTERISK@',
'@QUESTION@',
'|',
),
$mask
);
$regexp = str_replace(
array(
'@ASTERISK@',
'@QUESTION@',
),
array(
'[^\\?\\*:\\|\'"<>]*',
'[^\\?\\*:\\|\'"<>]',
),
$mask
);
return $regexp;
}
/**
* Replaces folder placeholders.
*
* @param string $file Replacement value.
*
* @return string
*/
public static function replace_folder_placeholders( $file ) {
static $content_dir, $plugin_dir, $upload_dir;
if ( empty( $content_dir ) ) {
$content_dir = str_replace( Util_Environment::document_root(), '', WP_CONTENT_DIR );
$content_dir = substr( $content_dir, strlen( Util_Environment::site_url_uri() ) );
$content_dir = trim( $content_dir, '/' );
if ( defined( 'WP_PLUGIN_DIR' ) ) {
$plugin_dir = str_replace( Util_Environment::document_root(), '', WP_PLUGIN_DIR );
$plugin_dir = trim( $plugin_dir, '/' );
} else {
$plugin_dir = str_replace( Util_Environment::document_root(), '', WP_CONTENT_DIR . '/plugins' );
$plugin_dir = trim( $plugin_dir, '/' );
}
$upload_dir = Util_Environment::wp_upload_dir();
$upload_dir = str_replace( Util_Environment::document_root(), '', $upload_dir['basedir'] );
$upload_dir = trim( $upload_dir, '/' );
}
$file = str_replace( '{wp_content_dir}', $content_dir, $file );
$file = str_replace( '{plugins_dir}', $plugin_dir, $file );
$file = str_replace( '{uploads_dir}', $upload_dir, $file );
return $file;
}
/**
* Replaces folder placeholders URI.
*
* @param string $file Replacement value.
*
* @return string
*/
public static function replace_folder_placeholders_to_uri( $file ) {
static $content_uri, $plugins_uri, $uploads_uri;
if ( empty( $content_uri ) ) {
$content_uri = Util_Environment::url_to_uri( content_url() );
$plugins_uri = Util_Environment::url_to_uri( plugins_url() );
$upload_dir = Util_Environment::wp_upload_dir();
if ( isset( $upload_dir['baseurl'] ) ) {
$uploads_uri = Util_Environment::url_to_uri( $upload_dir['baseurl'] );
} else {
$uploads_uri = '';
}
}
$file = str_replace( '{wp_content_dir}', $content_uri, $file );
$file = str_replace( '{plugins_dir}', $plugins_uri, $file );
$file = str_replace( '{uploads_dir}', $uploads_uri, $file );
return $file;
}
/**
* Get the override default value for cdn.flush_manually to prevent excessive invalidation charges for S3 CF and CF2.
*
* @since 2.2.6
*
* @param string $cdn_engine CDN engine value.
*
* @return boolean default value override;
*/
public static function get_flush_manually_default_override( $cdn_engine = null ) {
$override_targets = array( 's3', 'cf', 'cf2' );
return in_array( $cdn_engine, $override_targets, true );
}
}