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https://github.com/phpbb/phpbb.git
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437 lines
12 KiB
PHP
437 lines
12 KiB
PHP
<?php
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/**
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*
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* @package extension
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* @copyright (c) 2011 phpBB Group
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
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*
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*/
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB'))
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{
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exit;
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}
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/**
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* The extension finder provides a simple way to locate files in active extensions
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*
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* @package extension
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*/
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class phpbb_extension_finder
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{
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protected $extension_manager;
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protected $phpbb_root_path;
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protected $cache;
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protected $php_ext;
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/**
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* The cache variable name used to store $this->cached_queries in $this->cache.
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*
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* Allows the use of multiple differently configured finders with the same cache.
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* @var string
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*/
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protected $cache_name;
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/**
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* An associative array, containing all search parameters set in methods.
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* @var array
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*/
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protected $query;
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/**
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* A map from md5 hashes of serialized queries to their previously retrieved
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* results.
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* @var array
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*/
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protected $cached_queries;
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/**
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* Creates a new finder instance with its dependencies
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*
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* @param phpbb_extension_manager $extension_manager An extension manager
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* instance that provides the finder with a list of active
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* extensions and their locations
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* @param string $phpbb_root_path Path to the phpbb root directory
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* @param phpbb_cache_driver_interface $cache A cache instance or null
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* @param string $php_ext php file extension
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* @param string $cache_name The name of the cache variable, defaults to
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* _ext_finder
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*/
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public function __construct(phpbb_extension_manager $extension_manager, $phpbb_root_path = '', phpbb_cache_driver_interface $cache = null, $php_ext = '.php', $cache_name = '_ext_finder')
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{
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$this->extension_manager = $extension_manager;
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$this->phpbb_root_path = $phpbb_root_path;
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$this->cache = $cache;
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$this->php_ext = $php_ext;
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$this->cache_name = $cache_name;
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$this->query = array(
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'core_path' => false,
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'core_suffix' => false,
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'core_prefix' => false,
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'core_directory' => false,
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'extension_suffix' => false,
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'extension_prefix' => false,
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'extension_directory' => false,
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);
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$this->cached_queries = ($this->cache) ? $this->cache->get($this->cache_name) : false;
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}
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/**
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* Sets a core path to be searched in addition to extensions
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*
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* @param string $core_path The path relative to phpbb_root_path
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function core_path($core_path)
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{
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$this->query['core_path'] = $core_path;
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return $this;
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}
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/**
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* Sets the suffix all files found in extensions and core must match.
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*
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* There is no default file extension, so to find PHP files only, you will
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* have to specify .php as a suffix. However when using get_classes, the .php
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* file extension is automatically added to suffixes.
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*
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* @param string $suffix A filename suffix
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function suffix($suffix)
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{
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$this->core_suffix($suffix);
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$this->extension_suffix($suffix);
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return $this;
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}
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/**
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* Sets a suffix all files found in extensions must match
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*
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* There is no default file extension, so to find PHP files only, you will
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* have to specify .php as a suffix. However when using get_classes, the .php
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* file extension is automatically added to suffixes.
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*
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* @param string $extension_suffix A filename suffix
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function extension_suffix($extension_suffix)
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{
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$this->query['extension_suffix'] = $extension_suffix;
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return $this;
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}
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/**
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* Sets a suffix all files found in the core path must match
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*
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* There is no default file extension, so to find PHP files only, you will
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* have to specify .php as a suffix. However when using get_classes, the .php
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* file extension is automatically added to suffixes.
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*
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* @param string $core_suffix A filename suffix
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function core_suffix($core_suffix)
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{
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$this->query['core_suffix'] = $core_suffix;
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return $this;
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}
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/**
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* Sets the prefix all files found in extensions and core must match
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*
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* @param string $prefix A filename prefix
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function prefix($prefix)
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{
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$this->core_prefix($prefix);
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$this->extension_prefix($prefix);
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return $this;
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}
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/**
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* Sets a prefix all files found in extensions must match
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*
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* @param string $extension_prefix A filename prefix
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function extension_prefix($extension_prefix)
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{
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$this->query['extension_prefix'] = $extension_prefix;
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return $this;
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}
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/**
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* Sets a prefix all files found in the core path must match
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*
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* @param string $core_prefix A filename prefix
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function core_prefix($core_prefix)
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{
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$this->query['core_prefix'] = $core_prefix;
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return $this;
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}
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/**
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* Sets a directory all files found in extensions and core must be contained in
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*
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* Automatically sets the core_directory if its value does not differ from
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* the current directory.
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*
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* @param string $directory
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function directory($directory)
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{
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$this->core_directory($directory);
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$this->extension_directory($directory);
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return $this;
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}
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/**
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* Sets a directory all files found in extensions must be contained in
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*
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* @param string $extension_directory
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function extension_directory($extension_directory)
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{
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$this->query['extension_directory'] = $this->sanitise_directory($extension_directory);
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return $this;
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}
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/**
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* Sets a directory all files found in the core path must be contained in
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*
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* @param string $core_directory
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* @return phpbb_extension_finder This object for chaining calls
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*/
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public function core_directory($core_directory)
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{
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$this->query['core_directory'] = $this->sanitise_directory($core_directory);
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return $this;
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}
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/**
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* Removes occurances of /./ and makes sure path ends without trailing slash
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*
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* @param string $directory A directory pattern
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* @return string A cleaned up directory pattern
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*/
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protected function sanitise_directory($directory)
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{
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$directory = preg_replace('#(?:^|/)\./#', '/', $directory);
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$dir_len = strlen($directory);
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if ($dir_len > 1 && $directory[$dir_len - 1] === '/')
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{
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$directory = substr($directory, 0, -1);
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}
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return $directory;
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}
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/**
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* Finds classes matching the configured options if they follow phpBB naming rules.
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*
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* The php file extension is automatically added to suffixes.
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*
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* Note: If a file is matched but contains a class name not following the
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* phpBB naming rules an incorrect class name will be returned.
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*
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* @param bool $cache Whether the result should be cached
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* @return array An array of found class names
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*/
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public function get_classes($cache = true)
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{
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$this->query['extension_suffix'] .= $this->php_ext;
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$this->query['core_suffix'] .= $this->php_ext;
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$files = $this->find($cache, false);
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$classes = array();
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foreach ($files as $file => $ext_name)
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{
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$file = preg_replace('#^includes/#', '', $file);
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$classes[] = 'phpbb_' . str_replace('/', '_', substr($file, 0, -strlen($this->php_ext)));
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}
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return $classes;
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}
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/**
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* Finds all directories matching the configured options
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*
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* @param bool $cache Whether the result should be cached
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* @param bool $extension_keys Whether the result should have extension name as array key
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* @return array An array of paths to found directories
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*/
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public function get_directories($cache = true, $extension_keys = false)
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{
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return $this->find_with_root_path($cache, true, $extension_keys);
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}
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/**
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* Finds all files matching the configured options.
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*
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* @param bool $cache Whether the result should be cached
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* @return array An array of paths to found files
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*/
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public function get_files($cache = true)
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{
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return $this->find_with_root_path($cache, false);
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}
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/**
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* A wrapper around the general find which prepends a root path to results
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*
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* @param bool $cache Whether the result should be cached
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* @param bool $is_dir Directories will be returned when true, only files
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* otherwise
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* @param bool $extension_keys If true, result will be associative array
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* with extension name as key
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* @return array An array of paths to found items
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*/
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protected function find_with_root_path($cache = true, $is_dir = false, $extension_keys = false)
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{
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$items = $this->find($cache, $is_dir);
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$result = array();
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foreach ($items as $item => $ext_name)
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{
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if ($extension_keys)
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{
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$result[$ext_name] = $this->phpbb_root_path . $item;
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}
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else
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{
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$result[] = $this->phpbb_root_path . $item;
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}
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}
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return $result;
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}
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/**
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* Finds all file system entries matching the configured options
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*
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* @param bool $cache Whether the result should be cached
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* @param bool $is_dir Directories will be returned when true, only files
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* otherwise
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* @return array An array of paths to found items
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*/
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public function find($cache = true, $is_dir = false)
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{
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$this->query['is_dir'] = $is_dir;
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$query = md5(serialize($this->query));
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if (!defined('DEBUG') && $cache && isset($this->cached_queries[$query]))
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{
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return $this->cached_queries[$query];
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}
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$files = array();
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$extensions = $this->extension_manager->all_enabled();
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if ($this->query['core_path'])
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{
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$extensions['/'] = $this->phpbb_root_path . $this->query['core_path'];
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}
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foreach ($extensions as $name => $path)
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{
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$ext_name = $name;
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if (!file_exists($path))
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{
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continue;
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}
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if ($name === '/')
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{
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$location = $this->query['core_path'];
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$name = '';
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$suffix = $this->query['core_suffix'];
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$prefix = $this->query['core_prefix'];
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$directory = $this->query['core_directory'];
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}
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else
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{
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$location = 'ext/';
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$name .= '/';
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$suffix = $this->query['extension_suffix'];
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$prefix = $this->query['extension_prefix'];
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$directory = $this->query['extension_directory'];
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}
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// match only first directory if leading slash is given
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if ($directory === '/')
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{
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$directory_pattern = '^' . preg_quote(DIRECTORY_SEPARATOR, '#');
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}
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else if ($directory && $directory[0] === '/')
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{
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$directory_pattern = '^' . preg_quote(str_replace('/', DIRECTORY_SEPARATOR, $directory) . DIRECTORY_SEPARATOR, '#');
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}
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else
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{
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$directory_pattern = preg_quote(DIRECTORY_SEPARATOR . str_replace('/', DIRECTORY_SEPARATOR, $directory) . DIRECTORY_SEPARATOR, '#');
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}
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if ($is_dir)
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{
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$directory_pattern .= '$';
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}
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$directory_pattern = '#' . $directory_pattern . '#';
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$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path), RecursiveIteratorIterator::SELF_FIRST);
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foreach ($iterator as $file_info)
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{
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$filename = $file_info->getFilename();
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if ($filename == '.' || $filename == '..')
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{
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continue;
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}
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if ($file_info->isDir() == $is_dir)
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{
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if ($is_dir)
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{
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$relative_path = $iterator->getInnerIterator()->getSubPath() . DIRECTORY_SEPARATOR . basename($filename) . DIRECTORY_SEPARATOR;
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if ($relative_path[0] !== DIRECTORY_SEPARATOR)
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{
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$relative_path = DIRECTORY_SEPARATOR . $relative_path;
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}
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}
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else
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{
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$relative_path = DIRECTORY_SEPARATOR . $iterator->getInnerIterator()->getSubPathname();
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}
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if ((!$suffix || substr($relative_path, -strlen($suffix)) === $suffix) &&
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(!$prefix || substr($filename, 0, strlen($prefix)) === $prefix) &&
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(!$directory || preg_match($directory_pattern, $relative_path)))
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{
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$files[str_replace(DIRECTORY_SEPARATOR, '/', $location . $name . substr($relative_path, 1))] = $ext_name;
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}
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}
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}
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}
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if ($cache && $this->cache)
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{
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$this->cached_queries[$query] = $files;
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$this->cache->put($this->cache_name, $this->cached_queries);
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}
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return $files;
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}
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}
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