Sindbad~EG File Manager
<?php
/**
* File: CdnEngine_Base.php
*
* @package W3TC
*/
namespace W3TC;
/**
* W3 CDN Base class
*/
define( 'W3TC_CDN_RESULT_HALT', -1 );
define( 'W3TC_CDN_RESULT_ERROR', 0 );
define( 'W3TC_CDN_RESULT_OK', 1 );
define( 'W3TC_CDN_HEADER_NONE', 'none' );
define( 'W3TC_CDN_HEADER_UPLOADABLE', 'uploadable' );
define( 'W3TC_CDN_HEADER_MIRRORING', 'mirroring' );
/**
* Class CdnEngine_Base
*
* phpcs:disable PSR2.Classes.PropertyDeclaration.Underscore
* phpcs:disable PSR2.Methods.MethodDeclaration.Underscore
* phpcs:disable WordPress.PHP.NoSilencedErrors.Discouraged
* phpcs:disable WordPress.WP.AlternativeFunctions
* phpcs:disable Generic.CodeAnalysis.UnusedFunctionParameter
*/
class CdnEngine_Base {
/**
* Engine configuration
*
* @var array
*/
protected $_config = array();
/**
* Gzip extension
*
* @var string
*/
protected $_gzip_extension = '.gzip';
/**
* Last error
*
* @var string
*/
protected $_last_error = '';
/**
* Constructor method for initializing the CdnEngine_Base object with configuration settings.
*
* @param array $config Optional. An array of configuration options to override default values.
* Defaults include 'debug', 'ssl', 'compression', and 'headers'.
*/
public function __construct( $config = array() ) {
$this->_config = array_merge(
array(
'debug' => false,
'ssl' => 'auto',
'compression' => false,
'headers' => array(),
),
$config
);
}
/**
* Upload files to the CDN.
*
* @param array $files An array of files to upload.
* @param array $results A reference to an array where results will be stored.
* @param bool $force_rewrite Optional. Whether to force a rewrite. Default is false.
* @param int $timeout_time Optional. The timeout time in seconds. Default is null.
*
* @return bool False on failure.
*/
public function upload( $files, &$results, $force_rewrite = false, $timeout_time = null ) {
$results = $this->_get_results(
$files,
W3TC_CDN_RESULT_HALT,
'Not implemented.'
);
return false;
}
/**
* Delete files from the CDN.
*
* @param array $files An array of files to delete.
* @param array $results A reference to an array where results will be stored.
*
* @return bool False on failure.
*/
public function delete( $files, &$results ) {
$results = $this->_get_results(
$files,
W3TC_CDN_RESULT_HALT,
'Not implemented.'
);
return false;
}
/**
* Purge files from the CDN.
*
* @param array $files An array of files to purge.
* @param array $results A reference to an array where results will be stored.
*
* @return bool False on failure.
*/
public function purge( $files, &$results ) {
return $this->upload( $files, $results, true );
}
/**
* Purge all files from the CDN.
*
* @param array $results A reference to an array where results will be stored.
*
* @return bool False on failure.
*/
public function purge_all( &$results ) {
$results = $this->_get_results(
array(),
W3TC_CDN_RESULT_HALT,
'Not implemented.'
);
return false;
}
/**
* Test the connection to the CDN.
*
* @param string $error A reference to a variable where any error message will be stored.
*
* @return bool True if the test is successful, false otherwise.
*/
public function test( &$error ) {
if ( ! $this->_test_domains( $error ) ) {
return false;
}
return true;
}
/**
* Create a container on the CDN.
*
* @throws \Exception If the method is not implemented.
*/
public function create_container() {
throw new \Exception( \esc_html__( 'Not implemented.', 'w3-total-cache' ) );
}
/**
* Get the appropriate domain for a given path.
*
* @param string $path Optional. The path to check. Default is an empty string.
*
* @return string|false The selected domain or false if no domain is found.
*/
public function get_domain( $path = '' ) {
$domains = $this->get_domains();
$count = count( $domains );
if ( $count ) {
switch ( true ) {
/**
* Reserved CSS
*/
case ( isset( $domains[0] ) && $this->_is_css( $path ) ):
$domain = $domains[0];
break;
/**
* Reserved JS after body
*/
case ( isset( $domains[2] ) && $this->_is_js_body( $path ) ):
$domain = $domains[2];
break;
/**
* Reserved JS before /body
*/
case ( isset( $domains[3] ) && $this->_is_js_footer( $path ) ):
$domain = $domains[3];
break;
/**
* Reserved JS in head, moved here due to greedy regex
*/
case ( isset( $domains[1] ) && $this->_is_js( $path ) ):
$domain = $domains[1];
break;
default:
if ( ! isset( $domains[0] ) ) {
$scheme = $this->_get_scheme();
if ( 'https' === $scheme && ! empty( $domains['https_default'] ) ) {
return $domains['https_default'];
} else {
return isset( $domains['http_default'] ) ? $domains['http_default'] :
$domains['https_default'];
}
} elseif ( $count > 4 ) {
$domain = $this->_get_domain( array_slice( $domains, 4 ), $path );
} else {
$domain = $this->_get_domain( $domains, $path );
}
}
/**
* Custom host for SSL
*/
list( $domain_http, $domain_https ) = array_map( 'trim', explode( ',', $domain . ',' ) );
$scheme = $this->_get_scheme();
switch ( $scheme ) {
case 'http':
$domain = $domain_http;
break;
case 'https':
$domain = ( $domain_https ? $domain_https : $domain_http );
break;
}
return $domain;
}
return false;
}
/**
* Get all available domains.
*
* @return array An array of domains.
*/
public function get_domains() {
return array();
}
/**
* Get the domain used for accessing the CDN.
*
* @return string The domain URL.
*/
public function get_via() {
$domain = $this->get_domain();
if ( $domain ) {
return $domain;
}
return 'N/A';
}
/**
* Format a URL for the given path.
*
* @param string $path The path to format.
*
* @return string|false The formatted URL or false on failure.
*/
public function format_url( $path ) {
$url = $this->_format_url( $path );
if ( $url && $this->_config['compression'] && ( isset( $_SERVER['HTTP_ACCEPT_ENCODING'] ) ? stristr( sanitize_text_field( wp_unslash( $_SERVER['HTTP_ACCEPT_ENCODING'] ) ), 'gzip' ) !== false : false ) && $this->_may_gzip( $path ) ) {
$qpos = strpos( $url, '?' );
if ( false !== $qpos ) {
$url = substr_replace( $url, $this->_gzip_extension, $qpos, 0 );
} else {
$url .= $this->_gzip_extension;
}
}
return $url;
}
/**
* Get the URL to prepend to a given path.
*
* @param string $path The path to prepend the URL to.
*
* @return string|false The full URL or false if no domain is found.
*/
public function get_prepend_path( $path ) {
$domain = $this->get_domain( $path );
if ( $domain ) {
$scheme = $this->_get_scheme();
$url = sprintf( '%s://%s', $scheme, $domain );
return $url;
}
return false;
}
/**
* Format a URL for the given path, with the appropriate scheme and domain.
*
* @param string $path The path to format.
*
* @return string|false The formatted URL or false if no domain is found.
*/
public function _format_url( $path ) {
$domain = $this->get_domain( $path );
if ( $domain ) {
$scheme = $this->_get_scheme();
$url = sprintf( '%s://%s/%s', $scheme, $domain, $path );
return $url;
}
return false;
}
/**
* Get results for a set of files.
*
* @param array $files The files for which results are generated.
* @param string $result Optional. The result status. Default is W3TC_CDN_RESULT_OK.
* @param string $error Optional. The error message. Default is 'OK'.
*
* @return array An array of results for each file.
*/
public function _get_results( $files, $result = W3TC_CDN_RESULT_OK, $error = 'OK' ) {
$results = array();
foreach ( $files as $key => $file ) {
if ( is_array( $file ) ) {
$local_path = $file['local_path'];
$remote_path = $file['remote_path'];
} else {
$local_path = $key;
$remote_path = $file;
}
$results[] = $this->_get_result(
$local_path,
$remote_path,
$result,
$error,
$file
);
}
return $results;
}
/**
* Retrieves the result data for a local and remote file path.
*
* @param string $local_path The local file path.
* @param string $remote_path The remote file path.
* @param int $result The result status (default is W3TC_CDN_RESULT_OK).
* @param string $error The error message (default is 'OK').
* @param mixed|null $descriptor Additional descriptor (default is null).
*
* @return array The result array containing local path, remote path, result, error, and descriptor.
*/
public function _get_result( $local_path, $remote_path, $result = W3TC_CDN_RESULT_OK, $error = 'OK', $descriptor = null ) {
if ( $this->_config['debug'] ) {
$this->_log( $local_path, $remote_path, $error );
}
return array(
'local_path' => $local_path,
'remote_path' => $remote_path,
'result' => $result,
'error' => $error,
'descriptor' => $descriptor,
);
}
/**
* Checks if any of the results contain an error.
*
* @param array $results The results to check.
*
* @return bool True if any result is an error, otherwise false.
*/
public function _is_error( $results ) {
foreach ( $results as $result ) {
if ( W3TC_CDN_RESULT_OK !== $result['result'] ) {
return true;
}
}
return false;
}
/**
* Retrieves the HTTP headers for a given file.
*
* @param array $file The file data array containing local path and original URL.
* @param array $whitelist Optional whitelist for specific headers (default is empty).
*
* @return array The HTTP headers for the file.
*/
public function get_headers_for_file( $file, $whitelist = array() ) {
$local_path = $file['local_path'];
$mime_type = Util_Mime::get_mime_type( $local_path );
$link = $file['original_url'];
$headers = array(
'Content-Type' => $mime_type,
'Last-Modified' => Util_Content::http_date( time() ),
'Access-Control-Allow-Origin' => '*',
'Link' => '<' . $link . '>; rel="canonical"',
);
$section = Util_Mime::mime_type_to_section( $mime_type );
if ( isset( $this->_config['headers'][ $section ] ) ) {
$hc = $this->_config['headers'][ $section ];
if ( isset( $whitelist['ETag'] ) && $hc['etag'] ) {
$headers['ETag'] = '"' . @md5_file( $local_path ) . '"';
}
if ( $hc['expires'] ) {
$headers['Expires'] = Util_Content::http_date( time() + $hc['lifetime'] );
$expires_set = true;
}
$headers = array_merge( $headers, $hc['static'] );
}
return $headers;
}
/**
* Determines whether a file may be compressed using Gzip.
*
* @param string $file The file path.
*
* @return bool True if the file may be gzipped, otherwise false.
*/
public function _may_gzip( $file ) {
/**
* Remove query string
*/
$file = preg_replace( '~\?.*$~', '', $file );
/**
* Check by file extension
*/
if ( preg_match( '~\.(ico|js|css|xml|xsd|xsl|svg|htm|html|txt)$~i', $file ) ) {
return true;
}
return false;
}
/**
* Tests the configured domains for valid hostnames.
*
* @param string $error A reference to store the error message if any domain is invalid.
*
* @return bool True if all domains are valid, otherwise false.
*/
public function _test_domains( &$error ) {
$domains = $this->get_domains();
if ( ! count( $domains ) ) {
$error = 'Empty hostname / CNAME list.';
return false;
}
foreach ( $domains as $domain ) {
$_domains = array_map( 'trim', explode( ',', $domain ) );
foreach ( $_domains as $_domain ) {
$matches = null;
if ( preg_match( '~^([a-z0-9\-\.]*)~i', $_domain, $matches ) ) {
$hostname = $matches[1];
} else {
$hostname = $_domain;
}
if ( empty( $hostname ) ) {
continue;
}
if ( gethostbyname( $hostname ) === $hostname ) {
$error = sprintf( 'Unable to resolve hostname: %s.', $hostname );
return false;
}
}
}
return true;
}
/**
* Checks if a file is a CSS file.
*
* @param string $path The file path.
*
* @return bool True if the file is a CSS file, otherwise false.
*/
public function _is_css( $path ) {
return preg_match( '~[a-zA-Z0-9\-_]*(\.include\.[0-9]+)?\.css$~', $path );
}
/**
* Checks if a file is a JavaScript file.
*
* @param string $path The file path.
*
* @return bool True if the file is a JavaScript file, otherwise false.
*/
public function _is_js( $path ) {
return preg_match( '~([a-z0-9\-_]+(\.include\.[a-z0-9]+)\.js)$~', $path ) || preg_match( '~[\w\d\-_]+\.js~', $path );
}
/**
* Checks if a file is a JavaScript file that should be included in the body.
*
* @param string $path The file path.
*
* @return bool True if the file is a JavaScript file for the body, otherwise false.
*/
public function _is_js_body( $path ) {
return preg_match( '~[a-z0-9\-_]+(\.include-body\.[a-z0-9]+)\.js$~', $path );
}
/**
* Checks if a file is a JavaScript file that should be included in the footer.
*
* @param string $path The file path.
*
* @return bool True if the file is a JavaScript file for the footer, otherwise false.
*/
public function _is_js_footer( $path ) {
return preg_match( '~[a-z0-9\-_]+(\.include-footer\.[a-z0-9]+)\.js$~', $path );
}
/**
* Retrieves the domain for a specific file path from a list of domains.
*
* @param array $domains The list of domains.
* @param string $path The file path.
*
* @return string|false The selected domain or false if no domain is found.
*/
public function _get_domain( $domains, $path ) {
$count = count( $domains );
if ( isset( $domains['http_default'] ) ) {
--$count;
}
if ( isset( $domains['https_default'] ) ) {
--$count;
}
if ( $count ) {
/**
* Use for equal URLs same host to allow caching by browser
*/
$hash = $this->_get_hash( $path );
$domain = $domains[ $hash % $count ];
return $domain;
}
return false;
}
/**
* Generates a hash from a given key.
*
* @param string $key The key to hash.
*
* @return int The generated hash value.
*/
public function _get_hash( $key ) {
$hash = abs( crc32( $key ) );
return $hash;
}
/**
* Retrieves the scheme (HTTP or HTTPS) based on the configuration.
*
* @return string The scheme ('http' or 'https').
*/
public function _get_scheme() {
switch ( $this->_config['ssl'] ) {
default:
case 'auto':
$scheme = ( Util_Environment::is_https() ? 'https' : 'http' );
break;
case 'enabled':
$scheme = 'https';
break;
case 'disabled':
$scheme = 'http';
break;
case 'rejected':
$scheme = 'http';
break;
}
return $scheme;
}
/**
* Logs a message with local and remote file paths and an error.
*
* @param string $local_path The local file path.
* @param string $remote_path The remote file path.
* @param string $error The error message.
*
* @return int|false The number of bytes written to the log file, or false on failure.
*/
public function _log( $local_path, $remote_path, $error ) {
$data = sprintf( "[%s] [%s => %s] %s\n", gmdate( 'r' ), $local_path, $remote_path, $error );
$data = strtr( $data, '<>', '..' );
$filename = Util_Debug::log_filename( 'cdn' );
return @file_put_contents( $filename, $data, FILE_APPEND );
}
/**
* Handles errors by saving the error message.
*
* @param int $errno The error number.
* @param string $errstr The error message.
*
* @return bool Always returns false.
*/
public function _error_handler( $errno, $errstr ) {
$this->_last_error = $errstr;
return false;
}
/**
* Retrieves the last error message.
*
* @return string The last error message.
*/
public function _get_last_error() {
return $this->_last_error;
}
/**
* Sets a custom error handler.
*
* phpcs:disable WordPress.PHP.DevelopmentFunctions.error_log_set_error_handler
*
* @return void
*/
public function _set_error_handler() {
set_error_handler(
array(
$this,
'_error_handler',
)
);
}
/**
* Restores the default error handler.
*
* @return void
*/
public function _restore_error_handler() {
restore_error_handler();
}
/**
* Retrieves the header support status.
*
* @return string The header support status (W3TC_CDN_HEADER_NONE).
*/
public function headers_support() {
return W3TC_CDN_HEADER_NONE;
}
}
Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists