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<?php
/**
* WPSEO Premium plugin file.
*
* @package WPSEO\Premium\Classes
*/
_deprecated_file( __FILE__, 'WPSEO 9.4' );
/**
* Class WPSEO_Premium_Autoloader.
*
* @deprecated 9.4
*/
class WPSEO_Premium_Autoloader {
/**
* The part of the class we wanted to search.
*
* @var string
*/
private $search_pattern;
/**
* The directory where the classes are located.
*
* @var string
*/
private $directory;
/**
* This piece will be added.
*
* @var string
*/
private $file_replace;
/**
* Additional sub-patterns of $suffix_pattern => $subdirectory pairs.
*
* @var array
*/
private $suffix_patterns;
/**
* Regular expression for matching a class name against sub-patterns.
*
* @var string
*/
private $suffix_patterns_regex = '';
/**
* Setting up the class.
*
* @param string $search_pattern The pattern to match for the redirect.
* @param string $directory The directory where the classes could be found.
* @param string $file_replace Optional. The replacement for the file. Default empty string.
* @param array $suffix_patterns Optional. Sub-patterns that determine a more specific location for classes
* ending in the respective suffix. The associative array hould contain
* $suffix_pattern => $subdirectory pairs. Default empty array.
*/
public function __construct( $search_pattern, $directory, $file_replace = '', $suffix_patterns = [] ) {
_deprecated_constructor( 'WPSEO_Premium_Autoloader', 'WPSEO 9.4' );
$this->search_pattern = $search_pattern;
$this->directory = $directory;
$this->file_replace = ( $file_replace === '' ) ? $search_pattern : $file_replace;
$this->suffix_patterns = $suffix_patterns;
$this->suffix_patterns_regex = $this->generate_suffix_patterns_regex( $this->suffix_patterns );
spl_autoload_register( [ $this, 'load' ] );
}
/**
* Autoloader load method. Load the class.
*
* @param string $class The requested class name.
*/
public function load( $class ) {
// Check & load file.
if ( $this->contains_search_pattern( $class ) ) {
$found_file = $this->find_file( $class );
if ( $found_file !== false ) {
require_once $found_file;
}
}
}
/**
* Does the filename contains the search pattern.
*
* @param string $class The classname to match.
*
* @return bool
*/
private function contains_search_pattern( $class ) {
return strpos( $class, $this->search_pattern ) === 0;
}
/**
* Searching for the file in the given directory.
*
* @param string $class The class to search for.
*
* @return bool|string
*/
private function find_file( $class ) {
// Format file name.
$file_name = $this->get_file_name( strtolower( $class ) );
// Full file path.
$class_path = __DIR__ . '/' . $this->directory;
// Match against suffix patterns, if any are present.
if ( ! empty( $this->suffix_patterns_regex ) && preg_match( $this->suffix_patterns_regex, $class, $matches ) ) {
if ( isset( $this->suffix_patterns[ $matches[1] ] ) ) {
$class_path .= trim( $this->suffix_patterns[ $matches[1] ], '/' ) . '/';
}
}
// Append file name to class path.
$full_path = $class_path . $file_name;
// Check & load file.
if ( file_exists( $full_path ) ) {
return $full_path;
}
// This might be an interface.
$full_path = str_replace( '.php', '-interface.php', $full_path );
if ( file_exists( $full_path ) ) {
return $full_path;
}
return false;
}
/**
* Parsing the file name.
*
* @param string $class The classname to convert to a file name.
*
* @return string
*/
private function get_file_name( $class ) {
return str_ireplace( '_', '-', str_ireplace( $this->file_replace, '', $class ) ) . '.php';
}
/**
* Generates the regular expression to check for suffix patterns in a class name.
*
* @param array $suffix_patterns Sub-patterns as $suffix_pattern => $subdirectory pairs.
*
* @return string Regular expression, or empty string if no suffix patterns provided.
*/
private function generate_suffix_patterns_regex( $suffix_patterns ) {
if ( empty( $suffix_patterns ) ) {
return '';
}
$suffixes = array_map(
'preg_quote',
array_keys( $suffix_patterns ),
array_fill( 0, count( $suffix_patterns ), '/' )
);
return '/(' . implode( '|', $suffixes ) . ')$/';
}
}