/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012 gnosygnu@gmail.com

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package gplx.xowa.mediawiki.includes.filerepo; import gplx.*; import gplx.xowa.*; import gplx.xowa.mediawiki.*; import gplx.xowa.mediawiki.includes.*;
import gplx.xowa.mediawiki.includes.filerepo.file.*;
import gplx.xowa.mediawiki.includes.utls.*;
/*	TODO.XO:
	* getZoneUrl
*/
public class XomwFileRepo {
//		static final DELETE_SOURCE = 1;
//		static final OVERWRITE = 2;
//		static final OVERWRITE_SAME = 4;
//		static final SKIP_LOCKING = 8;
//
//		static final NAME_AND_TIME_ONLY = 1;
//
//		/** @var boolean Whether to fetch commons image description pages and display
//		*    them on the local wiki */
//		public fetchDescription;
//
//		/** @var int */
//		public descriptionCacheExpiry;
//
//		/** @var boolean */
//		protected hasSha1Storage = false;
//
//		/** @var boolean */
//		protected supportsSha1URLs = false;
//
//		/** @var FileBackend */
//		protected backend;
//
//		/** @var array Map of zones to config */
//		protected zones = [];
//
//		/** @var String URL of thumb.php */
//		protected thumbScriptUrl;
//
//		/** @var boolean Whether to skip media file transformation on parse and rely
//		*    on a 404 handler instead. */
//		protected transformVia404;
//
//		/** @var String URL of image description pages, e.g.
//		*    https://en.wikipedia.org/wiki/File:
//		*/
//		protected descBaseUrl;
//
//		/** @var String URL of the MediaWiki installation, equivalent to
//		*    wgScriptPath, e.g. https://en.wikipedia.org/w
//		*/
//		protected scriptDirUrl;
//
//		/** @var String Script extension of the MediaWiki installation, equivalent
//		*    to the old wgScriptExtension, e.g. .php5 defaults to .php */
//		protected scriptExtension;
//
//		/** @var String Equivalent to wgArticlePath, e.g. https://en.wikipedia.org/wiki/1 */
//		protected articleUrl;
//
//		/** @var boolean Equivalent to wgCapitalLinks (or wgCapitalLinkOverrides[NS_FILE],
//		*    determines whether filenames implicitly start with a capital letter.
//		*    The current implementation may give incorrect description page links
//		*    when the local wgCapitalLinks and initialCapital are mismatched.
//		*/
//		protected initialCapital;
//
//		/** @var String May be 'paranoid' to remove all parameters from error
//		*    messages, 'none' to leave the paths in unchanged, or 'simple' to
//		*    replace paths with placeholders. Default for LocalRepo is
//		*    'simple'.
//		*/
//		protected pathDisclosureProtection = 'simple';

	/** @var String|false Public zone URL. */
	public byte[] url;

	/** @var String The super thumbnail URL. Defaults to "<url>/thumb". */
	public byte[] thumbUrl;

	/** @var int The number of directory levels for hash-based division of files */
	private int hashLevels = 2;

//		/** @var int The number of directory levels for hash-based division of deleted files */
//		protected deletedHashLevels;
//
//		/** @var int File names over this size will use the short form of thumbnail
//		*    names. Short thumbnail names only have the width, parameters, and the
//		*    extension.
//		*/
//		protected abbrvThreshold;
//
//		/** @var String The URL of the repo's favicon, if any */
//		protected favicon;
//
//		/** @var boolean Whether all zones should be private (e.g. private wiki repo) */
//		protected isPrivate;
//
//		/** @var array callable Override these in the super class */
//		protected fileFactory = [ 'UnregisteredLocalFile', 'newFromTitle' ];
//		/** @var array callable|boolean Override these in the super class */
//		protected oldFileFactory = false;
//		/** @var array callable|boolean Override these in the super class */
//		protected fileFactoryKey = false;
//		/** @var array callable|boolean Override these in the super class */
//		protected oldFileFactoryKey = false;

	public XomwFileRepo(byte[] url, byte[] thumbUrl) {
		this.url = url;
		this.thumbUrl = thumbUrl;
	}
//		/**
//		* @param array|null info
//		* @throws MWException
//		*/
//		public function __construct(array info = null) {
//			// Verify required settings presence
//			if (
//				info === null
//				|| !array_key_exists('name', info)
//				|| !array_key_exists('backend', info)
//			) {
//				throw new MWException(__CLASS__ .
//					" requires an array of options having both 'name' and 'backend' keys.\n");
//			}
//
//			// Required settings
//			this.name = info['name'];
//			if (info['backend'] instanceof FileBackend) {
//				this.backend = info['backend']; // useful for testing
//			} else {
//				this.backend = FileBackendGroup::singleton().get(info['backend']);
//			}
//
//			// Optional settings that can have no value
//			optionalSettings = [
//				'descBaseUrl', 'scriptDirUrl', 'articleUrl', 'fetchDescription',
//				'thumbScriptUrl', 'pathDisclosureProtection', 'descriptionCacheExpiry',
//				'scriptExtension', 'favicon'
//			];
//			foreach (optionalSettings as var) {
//				if (isset(info[var])) {
//					this.var = info[var];
//				}
//			}
//
//			// Optional settings that have a default
//			this.initialCapital = isset(info['initialCapital'])
//				? info['initialCapital']
//				: XomwNamespace::isCapitalized(NS_FILE);
//			this.url = isset(info['url'])
//				? info['url']
//				: false; // a subclass may set the URL (e.g. ForeignAPIRepo)
//			if (isset(info['thumbUrl'])) {
//				this.thumbUrl = info['thumbUrl'];
//			} else {
//				this.thumbUrl = this.url ? "{this.url}/thumb" : false;
//			}
//			this.hashLevels = isset(info['hashLevels'])
//				? info['hashLevels']
//				: 2;
//			this.deletedHashLevels = isset(info['deletedHashLevels'])
//				? info['deletedHashLevels']
//				: this.hashLevels;
//			this.transformVia404 = !empty(info['transformVia404']);
//			this.abbrvThreshold = isset(info['abbrvThreshold'])
//				? info['abbrvThreshold']
//				: 255;
//			this.isPrivate = !empty(info['isPrivate']);
//			// Give defaults for the basic zones...
//			this.zones = isset(info['zones']) ? info['zones'] : [];
//			foreach ([ 'public', 'thumb', 'transcoded', 'temp', 'deleted' ] as zone) {
//				if (!isset(this.zones[zone]['container'])) {
//					this.zones[zone]['container'] = "{this.name}-{zone}";
//				}
//				if (!isset(this.zones[zone]['directory'])) {
//					this.zones[zone]['directory'] = '';
//				}
//				if (!isset(this.zones[zone]['urlsByExt'])) {
//					this.zones[zone]['urlsByExt'] = [];
//				}
//			}
//
//			this.supportsSha1URLs = !empty(info['supportsSha1URLs']);
//		}
//
//		/**
//		* Get the file backend instance. Use this function wisely.
//		*
//		* @return FileBackend
//		*/
//		public function getBackend() {
//			return this.backend;
//		}
//
//		/**
//		* Get an explanatory message if this repo is read-only.
//		* This checks if an administrator disabled writes to the backend.
//		*
//		* @return String|boolean Returns false if the repo is not read-only
//		*/
//		public function getReadOnlyReason() {
//			return this.backend.getReadOnlyReason();
//		}
//
//		/**
//		* Check if a single zone or list of zones is defined for usage
//		*
//		* @param array doZones Only do a particular zones
//		* @throws MWException
//		* @return Status
//		*/
//		protected function initZones(doZones = []) {
//			status = this.newGood();
//			foreach ((array)doZones as zone) {
//				root = this.getZonePath(zone);
//				if (root === null) {
//					throw new MWException("No 'zone' zone defined in the {this.name} repo.");
//				}
//			}
//
//			return status;
//		}
//
//		/**
//		* Determine if a String is an mwrepo:// URL
//		*
//		* @param String url
//		* @return boolean
//		*/
//		public static function isVirtualUrl(url) {
//			return substr(url, 0, 9) == 'mwrepo://';
//		}
//
//		/**
//		* Get a URL referring to this repository, with the private mwrepo protocol.
//		* The suffix, if supplied, is considered to be unencoded, and will be
//		* URL-encoded before being returned.
//		*
//		* @param String|boolean suffix
//		* @return String
//		*/
//		public function getVirtualUrl(suffix = false) {
//			path = 'mwrepo://' . this.name;
//			if (suffix !== false) {
//				path .= '/' . rawurlencode(suffix);
//			}
//
//			return path;
//		}

	/**
	* Get the URL corresponding to one of the four basic zones
	*
	* @param String zone One of: public, deleted, temp, thumb
	* @param String|null ext Optional file extension
	* @return String|boolean
	*/
	public byte[] getZoneUrl(int zone, byte[] ext) {
		// XO.MW.UNSUPPORTED.CUSTOM:ignore customized zones by ext
		//if (in_array(zone, [ 'public', 'thumb', 'transcoded' ])) {
		//	// standard public zones
		//	if (ext !== null && isset(this.zones[zone]['urlsByExt'][ext])) {
		//		// custom URL for extension/zone
		//		return this.zones[zone]['urlsByExt'][ext];
		//	} elseif (isset(this.zones[zone]['url'])) {
		//		// custom URL for zone
		//		return this.zones[zone]['url'];
		//	}
		//}
		switch (zone) {
			case Zone__public:
				return this.url;
			//case 'temp':
			//case 'deleted':
			//	return false; // no public URL
			case Zone__thumb:
				return this.thumbUrl;
			//case 'transcoded':
			//	return "{this.url}/transcoded";
			//default:
			//	return false;
		}
		return url;
	}

//		/**
//		* @return boolean Whether non-ASCII path characters are allowed
//		*/
//		public function backendSupportsUnicodePaths() {
//			return (boolean)(this.getBackend().getFeatures() & FileBackend::ATTR_UNICODE_PATHS);
//		}
//
//		/**
//		* Get the backend storage path corresponding to a virtual URL.
//		* Use this function wisely.
//		*
//		* @param String url
//		* @throws MWException
//		* @return String
//		*/
//		public function resolveVirtualUrl(url) {
//			if (substr(url, 0, 9) != 'mwrepo://') {
//				throw new MWException(__METHOD__ . ': unknown protocol');
//			}
//			bits = explode('/', substr(url, 9), 3);
//			if (count(bits) != 3) {
//				throw new MWException(__METHOD__ . ": invalid mwrepo URL: url");
//			}
//			list(repo, zone, rel) = bits;
//			if (repo !== this.name) {
//				throw new MWException(__METHOD__ . ": fetching from a foreign repo is not supported");
//			}
//			super = this.getZonePath(zone);
//			if (!super) {
//				throw new MWException(__METHOD__ . ": invalid zone: zone");
//			}
//
//			return super . '/' . rawurldecode(rel);
//		}
//
//		/**
//		* The the storage container and super path of a zone
//		*
//		* @param String zone
//		* @return array (container, super path) or (null, null)
//		*/
//		protected function getZoneLocation(zone) {
//			if (!isset(this.zones[zone])) {
//				return [ null, null ]; // bogus
//			}
//
//			return [ this.zones[zone]['container'], this.zones[zone]['directory'] ];
//		}

	/**
	* Get the storage path corresponding to one of the zones
	*
	* @param String zone
	* @return String|null Returns null if the zone is not defined
	*/
	public byte[] getZonePath(int zone) {
//			list(container, super) = this.getZoneLocation(zone);
//			if (container === null || super === null) {
//				return null;
//			}
//			backendName = this.backend.getName();
//			if (super != '') { // may not be set
//				super = "/{super}";
//			}
//
//			return "mwstore://backendName/{container}{super}";
		return Bry_.Empty;
	}

//		/**
//		* Create a new File Object from the local repository
//		*
//		* @param Title|String title Title Object or String
//		* @param boolean|String time Time at which the image was uploaded. If this
//		*   is specified, the returned Object will be an instance of the
//		*   repository's old file class instead of a current file. Repositories
//		*   not supporting version control should return false if this parameter
//		*   is set.
//		* @return File|null A File, or null if passed an invalid Title
//		*/
//		public function newFile(title, time = false) {
//			title = File::normalizeTitle(title);
//			if (!title) {
//				return null;
//			}
//			if (time) {
//				if (this.oldFileFactory) {
//					return call_user_func(this.oldFileFactory, title, this, time);
//				} else {
//					return null;
//				}
//			} else {
//				return call_user_func(this.fileFactory, title, this);
//			}
//		}
//
//		/**
//		* Find an instance of the named file created at the specified time
//		* Returns false if the file does not exist. Repositories not supporting
//		* version control should return false if the time is specified.
//		*
//		* @param Title|String title Title Object or String
//		* @param array options Associative array of options:
//		*   time:           requested time for a specific file version, or false for the
//		*                   current version. An image Object will be returned which was
//		*                   created at the specified time (which may be archived or current).
//		*   ignoreRedirect: If true, do not follow file redirects
//		*   private:        If true, return restricted (deleted) files if the current
//		*                   user is allowed to view them. Otherwise, such files will not
//		*                   be found. If a User Object, use that user instead of the current.
//		*   latest:         If true, load from the latest available data into File objects
//		* @return File|boolean False on failure
//		*/
//		public function findFile(title, options = []) {
//			title = File::normalizeTitle(title);
//			if (!title) {
//				return false;
//			}
//			if (isset(options['bypassCache'])) {
//				options['latest'] = options['bypassCache']; // b/c
//			}
//			time = isset(options['time']) ? options['time'] : false;
//			flags = !empty(options['latest']) ? File::READ_LATEST : 0;
//			# First try the current version of the file to see if it precedes the timestamp
//			img = this.newFile(title);
//			if (!img) {
//				return false;
//			}
//			img.load(flags);
//			if (img.exists() && (!time || img.getTimestamp() == time)) {
//				return img;
//			}
//			# Now try an old version of the file
//			if (time !== false) {
//				img = this.newFile(title, time);
//				if (img) {
//					img.load(flags);
//					if (img.exists()) {
//						if (!img.isDeleted(File::DELETED_FILE)) {
//							return img; // always OK
//						} elseif (!empty(options['private']) &&
//							img.userCan(File::DELETED_FILE,
//								options['private'] instanceof User ? options['private'] : null
//							)
//						) {
//							return img;
//						}
//					}
//				}
//			}
//
//			# Now try redirects
//			if (!empty(options['ignoreRedirect'])) {
//				return false;
//			}
//			redir = this.checkRedirect(title);
//			if (redir && title.getNamespace() == NS_FILE) {
//				img = this.newFile(redir);
//				if (!img) {
//					return false;
//				}
//				img.load(flags);
//				if (img.exists()) {
//					img.redirectedFrom(title.getDBkey());
//
//					return img;
//				}
//			}
//
//			return false;
//		}
//
//		/**
//		* Find many files at once.
//		*
//		* @param array items An array of titles, or an array of findFile() options with
//		*    the "title" option giving the title. Example:
//		*
//		*     findItem = [ 'title' => title, 'private' => true ];
//		*     findBatch = [ findItem ];
//		*     repo.findFiles(findBatch);
//		*
//		*    No title should appear in items twice, as the result use titles as keys
//		* @param int flags Supports:
//		*     - FileRepo::NAME_AND_TIME_ONLY : return a (search title => (title,timestamp)) map.
//		*       The search title uses the input titles; the other is the final post-redirect title.
//		*       All titles are returned as String DB keys and the inner array is associative.
//		* @return array Map of (file name => File objects) for matches
//		*/
//		public function findFiles(array items, flags = 0) {
//			result = [];
//			foreach (items as item) {
//				if (is_array(item)) {
//					title = item['title'];
//					options = item;
//					unset(options['title']);
//				} else {
//					title = item;
//					options = [];
//				}
//				file = this.findFile(title, options);
//				if (file) {
//					searchName = File::normalizeTitle(title).getDBkey(); // must be valid
//					if (flags & self::NAME_AND_TIME_ONLY) {
//						result[searchName] = [
//							'title' => file.getTitle().getDBkey(),
//							'timestamp' => file.getTimestamp()
//						];
//					} else {
//						result[searchName] = file;
//					}
//				}
//			}
//
//			return result;
//		}
//
//		/**
//		* Find an instance of the file with this key, created at the specified time
//		* Returns false if the file does not exist. Repositories not supporting
//		* version control should return false if the time is specified.
//		*
//		* @param String sha1 Base 36 SHA-1 hash
//		* @param array options Option array, same as findFile().
//		* @return File|boolean False on failure
//		*/
//		public function findFileFromKey(sha1, options = []) {
//			time = isset(options['time']) ? options['time'] : false;
//			# First try to find a matching current version of a file...
//			if (!this.fileFactoryKey) {
//				return false; // find-by-sha1 not supported
//			}
//			img = call_user_func(this.fileFactoryKey, sha1, this, time);
//			if (img && img.exists()) {
//				return img;
//			}
//			# Now try to find a matching old version of a file...
//			if (time !== false && this.oldFileFactoryKey) { // find-by-sha1 supported?
//				img = call_user_func(this.oldFileFactoryKey, sha1, this, time);
//				if (img && img.exists()) {
//					if (!img.isDeleted(File::DELETED_FILE)) {
//						return img; // always OK
//					} elseif (!empty(options['private']) &&
//						img.userCan(File::DELETED_FILE,
//							options['private'] instanceof User ? options['private'] : null
//						)
//					) {
//						return img;
//					}
//				}
//			}
//
//			return false;
//		}
//
//		/**
//		* Get an array or iterator of file objects for files that have a given
//		* SHA-1 content hash.
//		*
//		* STUB
//		* @param String hash SHA-1 hash
//		* @return File[]
//		*/
//		public function findBySha1(hash) {
//			return [];
//		}
//
//		/**
//		* Get an array of arrays or iterators of file objects for files that
//		* have the given SHA-1 content hashes.
//		*
//		* @param array hashes An array of hashes
//		* @return array An Array of arrays or iterators of file objects and the hash as key
//		*/
//		public function findBySha1s(array hashes) {
//			result = [];
//			foreach (hashes as hash) {
//				files = this.findBySha1(hash);
//				if (count(files)) {
//					result[hash] = files;
//				}
//			}
//
//			return result;
//		}
//
//		/**
//		* Return an array of files where the name starts with prefix.
//		*
//		* STUB
//		* @param String prefix The prefix to search for
//		* @param int limit The maximum amount of files to return
//		* @return array
//		*/
//		public function findFilesByPrefix(prefix, limit) {
//			return [];
//		}
//
//		/**
//		* Get the URL of thumb.php
//		*
//		* @return String
//		*/
//		public function getThumbScriptUrl() {
//			return this.thumbScriptUrl;
//		}
//
//		/**
//		* Returns true if the repository can transform files via a 404 handler
//		*
//		* @return boolean
//		*/
//		public function canTransformVia404() {
//			return this.transformVia404;
//		}

	/**
	* Get the name of a file from its title Object
	*
	* @param Title title
	* @return String
	*/
	public byte[] getNameFromTitle(XomwTitle title) {
//			global wgContLang;
//			if (this.initialCapital != XomwNamespace::isCapitalized(NS_FILE)) {
//				name = title.getUserCaseDBKey();
//				if (this.initialCapital) {
//					name = wgContLang.ucfirst(name);
//				}
//			} else {
//				name = title.getDBkey();
//			}
//
//			return name;
		return title.getDBkey();
	}
//
//		/**
//		* Get the public zone root storage directory of the repository
//		*
//		* @return String
//		*/
//		public function getRootDirectory() {
//			return this.getZonePath('public');
//		}

	/**
	* Get a relative path including trailing slash, e.g. f/fa/
	* If the repo is not hashed, returns an empty String
	*
	* @param String name Name of file
	* @return String
	*/
	public byte[] getHashPath(byte[] name) {
		return getHashPathForLevel(name, this.hashLevels);
	}

//		/**
//		* Get a relative path including trailing slash, e.g. f/fa/
//		* If the repo is not hashed, returns an empty String
//		*
//		* @param String suffix Basename of file from FileRepo::storeTemp()
//		* @return String
//		*/
//		public function getTempHashPath(suffix) {
//			parts = explode('!', suffix, 2); // format is <timestamp>!<name> or just <name>
//			name = isset(parts[1]) ? parts[1] : suffix; // hash path is not based on timestamp
//			return self::getHashPathForLevel(name, this.hashLevels);
//		}

	/**
	* @param String name
	* @param int levels
	* @return String
	*/
	public static byte[] getHashPathForLevel(byte[] name, int levels) {
		if (levels == 0) {
			return Bry_.Empty;
		} else {
			byte[] hash = gplx.xowa.files.Xof_file_wkr_.Md5(name);
			// XO.MW: assume 2
			if (levels != 2) throw Err_.new_wo_type("levels must be 2", "levels", levels);
			byte[] path = new byte[5];
			path[0] = path[2] = hash[0];
			path[3] = hash[1];
			path[1] = path[4] = Byte_ascii.Slash;
			return path;
		}
	}

//		/**
//		* Get the number of hash directory levels
//		*
//		* @return int
//		*/
//		public function getHashLevels() {
//			return this.hashLevels;
//		}
//
//		/**
//		* Get the name of this repository, as specified by info['name]' to the constructor
//		*
//		* @return String
//		*/
//		public function getName() {
//			return this.name;
//		}
//
//		/**
//		* Make an url to this repo
//		*
//		* @param String query Query String to append
//		* @param String entry Entry point; defaults to index
//		* @return String|boolean False on failure
//		*/
//		public function makeUrl(query = '', entry = 'index') {
//			if (isset(this.scriptDirUrl)) {
//				ext = isset(this.scriptExtension) ? this.scriptExtension : '.php';
//
//				return wfAppendQuery("{this.scriptDirUrl}/{entry}{ext}", query);
//			}
//
//			return false;
//		}
//
//		/**
//		* Get the URL of an image description page. May return false if it is
//		* unknown or not applicable. In general this should only be called by the
//		* File class, since it may return invalid results for certain kinds of
//		* repositories. Use File::getDescriptionUrl() in user code.
//		*
//		* In particular, it uses the article paths as specified to the repository
//		* constructor, whereas local repositories use the local Title functions.
//		*
//		* @param String name
//		* @return String|false
//		*/
//		public function getDescriptionUrl(name) {
//			encName = wfUrlencode(name);
//			if (!is_null(this.descBaseUrl)) {
//				# "http://example.com/wiki/File:"
//				return this.descBaseUrl . encName;
//			}
//			if (!is_null(this.articleUrl)) {
//				# "http://example.com/wiki/1"
//				# We use "Image:" as the canonical namespace for
//				# compatibility across all MediaWiki versions.
//				return str_replace('1',
//					"Image:encName", this.articleUrl);
//			}
//			if (!is_null(this.scriptDirUrl)) {
//				# "http://example.com/w"
//				# We use "Image:" as the canonical namespace for
//				# compatibility across all MediaWiki versions,
//				# and just sort of hope index.php is right. ;)
//				return this.makeUrl("title=Image:encName");
//			}
//
//			return false;
//		}
//
//		/**
//		* Get the URL of the content-only fragment of the description page. For
//		* MediaWiki this means action=render. This should only be called by the
//		* repository's file class, since it may return invalid results. User code
//		* should use File::getDescriptionText().
//		*
//		* @param String name Name of image to fetch
//		* @param String lang Language to fetch it in, if any.
//		* @return String|false
//		*/
//		public function getDescriptionRenderUrl(name, lang = null) {
//			query = 'action=render';
//			if (!is_null(lang)) {
//				query .= '&uselang=' . lang;
//			}
//			if (isset(this.scriptDirUrl)) {
//				return this.makeUrl(
//					'title=' .
//					wfUrlencode('Image:' . name) .
//					"&query");
//			} else {
//				descUrl = this.getDescriptionUrl(name);
//				if (descUrl) {
//					return wfAppendQuery(descUrl, query);
//				} else {
//					return false;
//				}
//			}
//		}
//
//		/**
//		* Get the URL of the stylesheet to apply to description pages
//		*
//		* @return String|boolean False on failure
//		*/
//		public function getDescriptionStylesheetUrl() {
//			if (isset(this.scriptDirUrl)) {
//				return this.makeUrl('title=MediaWiki:Filepage.css&' .
//					wfArrayToCgi(Skin::getDynamicStylesheetQuery()));
//			}
//
//			return false;
//		}
//
//		/**
//		* Store a file to a given destination.
//		*
//		* @param String srcPath Source file system path, storage path, or virtual URL
//		* @param String dstZone Destination zone
//		* @param String dstRel Destination relative path
//		* @param int flags Bitwise combination of the following flags:
//		*   self::OVERWRITE         Overwrite an existing destination file instead of failing
//		*   self::OVERWRITE_SAME    Overwrite the file if the destination exists and has the
//		*                           same contents as the source
//		*   self::SKIP_LOCKING      Skip any file locking when doing the store
//		* @return Status
//		*/
//		public function store(srcPath, dstZone, dstRel, flags = 0) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			status = this.storeBatch([ [ srcPath, dstZone, dstRel ] ], flags);
//			if (status.successCount == 0) {
//				status.setOK(false);
//			}
//
//			return status;
//		}
//
//		/**
//		* Store a batch of files
//		*
//		* @param array triplets (src, dest zone, dest rel) triplets as per store()
//		* @param int flags Bitwise combination of the following flags:
//		*   self::OVERWRITE         Overwrite an existing destination file instead of failing
//		*   self::OVERWRITE_SAME    Overwrite the file if the destination exists and has the
//		*                           same contents as the source
//		*   self::SKIP_LOCKING      Skip any file locking when doing the store
//		* @throws MWException
//		* @return Status
//		*/
//		public function storeBatch(array triplets, flags = 0) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			if (flags & self::DELETE_SOURCE) {
//				throw new InvalidArgumentException("DELETE_SOURCE not supported in " . __METHOD__);
//			}
//
//			status = this.newGood();
//			backend = this.backend; // convenience
//
//			operations = [];
//			// Validate each triplet and get the store operation...
//			foreach (triplets as triplet) {
//				list(srcPath, dstZone, dstRel) = triplet;
//				wfDebug(__METHOD__
//					. "(\src='srcPath', \dstZone='dstZone', \dstRel='dstRel')\n"
//				);
//
//				// Resolve destination path
//				root = this.getZonePath(dstZone);
//				if (!root) {
//					throw new MWException("Invalid zone: dstZone");
//				}
//				if (!this.validateFilename(dstRel)) {
//					throw new MWException('Validation error in dstRel');
//				}
//				dstPath = "root/dstRel";
//				dstDir = dirname(dstPath);
//				// Create destination directories for this triplet
//				if (!this.initDirectory(dstDir).isOK()) {
//					return this.newFatal('directorycreateerror', dstDir);
//				}
//
//				// Resolve source to a storage path if virtual
//				srcPath = this.resolveToStoragePath(srcPath);
//
//				// Get the appropriate file operation
//				if (FileBackend::isStoragePath(srcPath)) {
//					opName = 'copy';
//				} else {
//					opName = 'store';
//				}
//				operations[] = [
//					'op' => opName,
//					'src' => srcPath,
//					'dst' => dstPath,
//					'overwrite' => flags & self::OVERWRITE,
//					'overwriteSame' => flags & self::OVERWRITE_SAME,
//				];
//			}
//
//			// Execute the store operation for each triplet
//			opts = [ 'force' => true ];
//			if (flags & self::SKIP_LOCKING) {
//				opts['nonLocking'] = true;
//			}
//			status.merge(backend.doOperations(operations, opts));
//
//			return status;
//		}
//
//		/**
//		* Deletes a batch of files.
//		* Each file can be a (zone, rel) pair, virtual url, storage path.
//		* It will try to delete each file, but ignores any errors that may occur.
//		*
//		* @param array files List of files to delete
//		* @param int flags Bitwise combination of the following flags:
//		*   self::SKIP_LOCKING      Skip any file locking when doing the deletions
//		* @return Status
//		*/
//		public function cleanupBatch(array files, flags = 0) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			status = this.newGood();
//
//			operations = [];
//			foreach (files as path) {
//				if (is_array(path)) {
//					// This is a pair, extract it
//					list(zone, rel) = path;
//					path = this.getZonePath(zone) . "/rel";
//				} else {
//					// Resolve source to a storage path if virtual
//					path = this.resolveToStoragePath(path);
//				}
//				operations[] = [ 'op' => 'delete', 'src' => path ];
//			}
//			// Actually delete files from storage...
//			opts = [ 'force' => true ];
//			if (flags & self::SKIP_LOCKING) {
//				opts['nonLocking'] = true;
//			}
//			status.merge(this.backend.doOperations(operations, opts));
//
//			return status;
//		}
//
//		/**
//		* Import a file from the local file system into the repo.
//		* This does no locking nor journaling and overrides existing files.
//		* This function can be used to write to otherwise read-only foreign repos.
//		* This is intended for copying generated thumbnails into the repo.
//		*
//		* @param String|FSFile src Source file system path, storage path, or virtual URL
//		* @param String dst Virtual URL or storage path
//		* @param array|String|null options An array consisting of a key named headers
//		*   listing extra headers. If a String, taken as content-disposition header.
//		*   (Support for array of options new in 1.23)
//		* @return Status
//		*/
//		final public function quickImport(src, dst, options = null) {
//			return this.quickImportBatch([ [ src, dst, options ] ]);
//		}
//
//		/**
//		* Purge a file from the repo. This does no locking nor journaling.
//		* This function can be used to write to otherwise read-only foreign repos.
//		* This is intended for purging thumbnails.
//		*
//		* @param String path Virtual URL or storage path
//		* @return Status
//		*/
//		final public function quickPurge(path) {
//			return this.quickPurgeBatch([ path ]);
//		}
//
//		/**
//		* Deletes a directory if empty.
//		* This function can be used to write to otherwise read-only foreign repos.
//		*
//		* @param String dir Virtual URL (or storage path) of directory to clean
//		* @return Status
//		*/
//		public function quickCleanDir(dir) {
//			status = this.newGood();
//			status.merge(this.backend.clean(
//				[ 'dir' => this.resolveToStoragePath(dir) ]));
//
//			return status;
//		}
//
//		/**
//		* Import a batch of files from the local file system into the repo.
//		* This does no locking nor journaling and overrides existing files.
//		* This function can be used to write to otherwise read-only foreign repos.
//		* This is intended for copying generated thumbnails into the repo.
//		*
//		* All path parameters may be a file system path, storage path, or virtual URL.
//		* When "headers" are given they are used as HTTP headers if supported.
//		*
//		* @param array triples List of (source path or FSFile, destination path, disposition)
//		* @return Status
//		*/
//		public function quickImportBatch(array triples) {
//			status = this.newGood();
//			operations = [];
//			foreach (triples as triple) {
//				list(src, dst) = triple;
//				if (src instanceof FSFile) {
//					op = 'store';
//				} else {
//					src = this.resolveToStoragePath(src);
//					op = FileBackend::isStoragePath(src) ? 'copy' : 'store';
//				}
//				dst = this.resolveToStoragePath(dst);
//
//				if (!isset(triple[2])) {
//					headers = [];
//				} elseif (is_string(triple[2])) {
//					// back-compat
//					headers = [ 'Content-Disposition' => triple[2] ];
//				} elseif (is_array(triple[2]) && isset(triple[2]['headers'])) {
//					headers = triple[2]['headers'];
//				} else {
//					headers = [];
//				}
//
//				operations[] = [
//					'op' => op,
//					'src' => src,
//					'dst' => dst,
//					'headers' => headers
//				];
//				status.merge(this.initDirectory(dirname(dst)));
//			}
//			status.merge(this.backend.doQuickOperations(operations));
//
//			return status;
//		}
//
//		/**
//		* Purge a batch of files from the repo.
//		* This function can be used to write to otherwise read-only foreign repos.
//		* This does no locking nor journaling and is intended for purging thumbnails.
//		*
//		* @param array paths List of virtual URLs or storage paths
//		* @return Status
//		*/
//		public function quickPurgeBatch(array paths) {
//			status = this.newGood();
//			operations = [];
//			foreach (paths as path) {
//				operations[] = [
//					'op' => 'delete',
//					'src' => this.resolveToStoragePath(path),
//					'ignoreMissingSource' => true
//				];
//			}
//			status.merge(this.backend.doQuickOperations(operations));
//
//			return status;
//		}
//
//		/**
//		* Pick a random name in the temp zone and store a file to it.
//		* Returns a Status Object with the file Virtual URL in the value,
//		* file can later be disposed using FileRepo::freeTemp().
//		*
//		* @param String originalName The super name of the file as specified
//		*   by the user. The file extension will be maintained.
//		* @param String srcPath The current location of the file.
//		* @return Status Object with the URL in the value.
//		*/
//		public function storeTemp(originalName, srcPath) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			date = MWTimestamp::getInstance().format('YmdHis');
//			hashPath = this.getHashPath(originalName);
//			dstUrlRel = hashPath . date . '!' . rawurlencode(originalName);
//			virtualUrl = this.getVirtualUrl('temp') . '/' . dstUrlRel;
//
//			result = this.quickImport(srcPath, virtualUrl);
//			result.value = virtualUrl;
//
//			return result;
//		}
//
//		/**
//		* Remove a temporary file or mark it for garbage collection
//		*
//		* @param String virtualUrl The virtual URL returned by FileRepo::storeTemp()
//		* @return boolean True on success, false on failure
//		*/
//		public function freeTemp(virtualUrl) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			temp = this.getVirtualUrl('temp');
//			if (substr(virtualUrl, 0, strlen(temp)) != temp) {
//				wfDebug(__METHOD__ . ": Invalid temp virtual URL\n");
//
//				return false;
//			}
//
//			return this.quickPurge(virtualUrl).isOK();
//		}
//
//		/**
//		* Concatenate a list of temporary files into a target file location.
//		*
//		* @param array srcPaths Ordered list of source virtual URLs/storage paths
//		* @param String dstPath Target file system path
//		* @param int flags Bitwise combination of the following flags:
//		*   self::DELETE_SOURCE     Delete the source files on success
//		* @return Status
//		*/
//		public function concatenate(array srcPaths, dstPath, flags = 0) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			status = this.newGood();
//
//			sources = [];
//			foreach (srcPaths as srcPath) {
//				// Resolve source to a storage path if virtual
//				source = this.resolveToStoragePath(srcPath);
//				sources[] = source; // chunk to merge
//			}
//
//			// Concatenate the chunks into one FS file
//			params = [ 'srcs' => sources, 'dst' => dstPath ];
//			status.merge(this.backend.concatenate(params));
//			if (!status.isOK()) {
//				return status;
//			}
//
//			// Delete the sources if required
//			if (flags & self::DELETE_SOURCE) {
//				status.merge(this.quickPurgeBatch(srcPaths));
//			}
//
//			// Make sure status is OK, despite any quickPurgeBatch() fatals
//			status.setResult(true);
//
//			return status;
//		}
//
//		/**
//		* Copy or move a file either from a storage path, virtual URL,
//		* or file system path, into this repository at the specified destination location.
//		*
//		* Returns a Status Object. On success, the value contains "new" or
//		* "archived", to indicate whether the file was new with that name.
//		*
//		* Options to options include:
//		*   - headers : name/value map of HTTP headers to use in response to GET/HEAD requests
//		*
//		* @param String|FSFile src The source file system path, storage path, or URL
//		* @param String dstRel The destination relative path
//		* @param String archiveRel The relative path where the existing file is to
//		*   be archived, if there is one. Relative to the public zone root.
//		* @param int flags Bitfield, may be FileRepo::DELETE_SOURCE to indicate
//		*   that the source file should be deleted if possible
//		* @param array options Optional additional parameters
//		* @return Status
//		*/
//		public function publish(
//			src, dstRel, archiveRel, flags = 0, array options = []
//		) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			status = this.publishBatch(
//				[ [ src, dstRel, archiveRel, options ] ], flags);
//			if (status.successCount == 0) {
//				status.setOK(false);
//			}
//			if (isset(status.value[0])) {
//				status.value = status.value[0];
//			} else {
//				status.value = false;
//			}
//
//			return status;
//		}
//
//		/**
//		* Publish a batch of files
//		*
//		* @param array ntuples (source, dest, archive) triplets or
//		*   (source, dest, archive, options) 4-tuples as per publish().
//		* @param int flags Bitfield, may be FileRepo::DELETE_SOURCE to indicate
//		*   that the source files should be deleted if possible
//		* @throws MWException
//		* @return Status
//		*/
//		public function publishBatch(array ntuples, flags = 0) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			backend = this.backend; // convenience
//			// Try creating directories
//			status = this.initZones('public');
//			if (!status.isOK()) {
//				return status;
//			}
//
//			status = this.newGood([]);
//
//			operations = [];
//			sourceFSFilesToDelete = []; // cleanup for disk source files
//			// Validate each triplet and get the store operation...
//			foreach (ntuples as ntuple) {
//				list(src, dstRel, archiveRel) = ntuple;
//				srcPath = (src instanceof FSFile) ? src.getPath() : src;
//
//				options = isset(ntuple[3]) ? ntuple[3] : [];
//				// Resolve source to a storage path if virtual
//				srcPath = this.resolveToStoragePath(srcPath);
//				if (!this.validateFilename(dstRel)) {
//					throw new MWException('Validation error in dstRel');
//				}
//				if (!this.validateFilename(archiveRel)) {
//					throw new MWException('Validation error in archiveRel');
//				}
//
//				publicRoot = this.getZonePath('public');
//				dstPath = "publicRoot/dstRel";
//				archivePath = "publicRoot/archiveRel";
//
//				dstDir = dirname(dstPath);
//				archiveDir = dirname(archivePath);
//				// Abort immediately on directory creation errors since they're likely to be repetitive
//				if (!this.initDirectory(dstDir).isOK()) {
//					return this.newFatal('directorycreateerror', dstDir);
//				}
//				if (!this.initDirectory(archiveDir).isOK()) {
//					return this.newFatal('directorycreateerror', archiveDir);
//				}
//
//				// Set any desired headers to be use in GET/HEAD responses
//				headers = isset(options['headers']) ? options['headers'] : [];
//
//				// Archive destination file if it exists.
//				// This will check if the archive file also exists and fail if does.
//				// This is a sanity check to avoid data loss. On Windows and Linux,
//				// copy() will overwrite, so the existence check is vulnerable to
//				// race conditions unless a functioning LockManager is used.
//				// LocalFile also uses SELECT FOR UPDATE for synchronization.
//				operations[] = [
//					'op' => 'copy',
//					'src' => dstPath,
//					'dst' => archivePath,
//					'ignoreMissingSource' => true
//				];
//
//				// Copy (or move) the source file to the destination
//				if (FileBackend::isStoragePath(srcPath)) {
//					if (flags & self::DELETE_SOURCE) {
//						operations[] = [
//							'op' => 'move',
//							'src' => srcPath,
//							'dst' => dstPath,
//							'overwrite' => true, // replace current
//							'headers' => headers
//						];
//					} else {
//						operations[] = [
//							'op' => 'copy',
//							'src' => srcPath,
//							'dst' => dstPath,
//							'overwrite' => true, // replace current
//							'headers' => headers
//						];
//					}
//				} else { // FS source path
//					operations[] = [
//						'op' => 'store',
//						'src' => src, // prefer FSFile objects
//						'dst' => dstPath,
//						'overwrite' => true, // replace current
//						'headers' => headers
//					];
//					if (flags & self::DELETE_SOURCE) {
//						sourceFSFilesToDelete[] = srcPath;
//					}
//				}
//			}
//
//			// Execute the operations for each triplet
//			status.merge(backend.doOperations(operations));
//			// Find out which files were archived...
//			foreach (ntuples as i => ntuple) {
//				list(, , archiveRel) = ntuple;
//				archivePath = this.getZonePath('public') . "/archiveRel";
//				if (this.fileExists(archivePath)) {
//					status.value[i] = 'archived';
//				} else {
//					status.value[i] = 'new';
//				}
//			}
//			// Cleanup for disk source files...
//			foreach (sourceFSFilesToDelete as file) {
//				MediaWiki\suppressWarnings();
//				unlink(file); // FS cleanup
//				MediaWiki\restoreWarnings();
//			}
//
//			return status;
//		}
//
//		/**
//		* Creates a directory with the appropriate zone permissions.
//		* Callers are responsible for doing read-only and "writable repo" checks.
//		*
//		* @param String dir Virtual URL (or storage path) of directory to clean
//		* @return Status
//		*/
//		protected function initDirectory(dir) {
//			path = this.resolveToStoragePath(dir);
//			list(, container,) = FileBackend::splitStoragePath(path);
//
//			params = [ 'dir' => path ];
//			if (this.isPrivate
//				|| container === this.zones['deleted']['container']
//				|| container === this.zones['temp']['container']
//			) {
//				# Take all available measures to prevent web accessibility of new deleted
//				# directories, in case the user has not configured offline storage
//				params = [ 'noAccess' => true, 'noListing' => true ] + params;
//			}
//
//			status = this.newGood();
//			status.merge(this.backend.prepare(params));
//
//			return status;
//		}
//
//		/**
//		* Deletes a directory if empty.
//		*
//		* @param String dir Virtual URL (or storage path) of directory to clean
//		* @return Status
//		*/
//		public function cleanDir(dir) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			status = this.newGood();
//			status.merge(this.backend.clean(
//				[ 'dir' => this.resolveToStoragePath(dir) ]));
//
//			return status;
//		}

	/**
	* Checks existence of a a file
	*
	* @param String file Virtual URL (or storage path) of file to check
	* @return boolean
	*/
	public boolean fileExists(XomwFile file) {
//			result = this.fileExistsBatch(file);
//
//			return result[0];
		return file.exists();
	}

//		/**
//		* Checks existence of an array of files.
//		*
//		* @param array files Virtual URLs (or storage paths) of files to check
//		* @return array Map of files and existence flags, or false
//		*/
//		public function fileExistsBatch(array files) {
//			paths = array_map([ this, 'resolveToStoragePath' ], files);
//			this.backend.preloadFileStat([ 'srcs' => paths ]);
//
//			result = [];
//			foreach (files as key => file) {
//				path = this.resolveToStoragePath(file);
//				result[key] = this.backend.fileExists([ 'src' => path ]);
//			}
//
//			return result;
//		}
//
//		/**
//		* Move a file to the deletion archive.
//		* If no valid deletion archive exists, this may either delete the file
//		* or throw an exception, depending on the preference of the repository
//		*
//		* @param mixed srcRel Relative path for the file to be deleted
//		* @param mixed archiveRel Relative path for the archive location.
//		*   Relative to a private archive directory.
//		* @return Status
//		*/
//		public function delete(srcRel, archiveRel) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			return this.deleteBatch([ [ srcRel, archiveRel ] ]);
//		}
//
//		/**
//		* Move a group of files to the deletion archive.
//		*
//		* If no valid deletion archive is configured, this may either delete the
//		* file or throw an exception, depending on the preference of the repository.
//		*
//		* The overwrite policy is determined by the repository -- currently LocalRepo
//		* assumes a naming scheme in the deleted zone based on content hash, as
//		* opposed to the public zone which is assumed to be unique.
//		*
//		* @param array sourceDestPairs Array of source/destination pairs. Each element
//		*   is a two-element array containing the source file path relative to the
//		*   public root in the first element, and the archive file path relative
//		*   to the deleted zone root in the second element.
//		* @throws MWException
//		* @return Status
//		*/
//		public function deleteBatch(array sourceDestPairs) {
//			this.assertWritableRepo(); // fail out if read-only
//
//			// Try creating directories
//			status = this.initZones([ 'public', 'deleted' ]);
//			if (!status.isOK()) {
//				return status;
//			}
//
//			status = this.newGood();
//
//			backend = this.backend; // convenience
//			operations = [];
//			// Validate filenames and create archive directories
//			foreach (sourceDestPairs as pair) {
//				list(srcRel, archiveRel) = pair;
//				if (!this.validateFilename(srcRel)) {
//					throw new MWException(__METHOD__ . ':Validation error in srcRel');
//				} elseif (!this.validateFilename(archiveRel)) {
//					throw new MWException(__METHOD__ . ':Validation error in archiveRel');
//				}
//
//				publicRoot = this.getZonePath('public');
//				srcPath = "{publicRoot}/srcRel";
//
//				deletedRoot = this.getZonePath('deleted');
//				archivePath = "{deletedRoot}/{archiveRel}";
//				archiveDir = dirname(archivePath); // does not touch FS
//
//				// Create destination directories
//				if (!this.initDirectory(archiveDir).isOK()) {
//					return this.newFatal('directorycreateerror', archiveDir);
//				}
//
//				operations[] = [
//					'op' => 'move',
//					'src' => srcPath,
//					'dst' => archivePath,
//					// We may have 2+ identical files being deleted,
//					// all of which will map to the same destination file
//					'overwriteSame' => true // also see bug 31792
//				];
//			}
//
//			// Move the files by execute the operations for each pair.
//			// We're now committed to returning an OK result, which will
//			// lead to the files being moved in the DB also.
//			opts = [ 'force' => true ];
//			status.merge(backend.doOperations(operations, opts));
//
//			return status;
//		}
//
//		/**
//		* Delete files in the deleted directory if they are not referenced in the filearchive table
//		*
//		* STUB
//		* @param array storageKeys
//		*/
//		public function cleanupDeletedBatch(array storageKeys) {
//			this.assertWritableRepo();
//		}
//
//		/**
//		* Get a relative path for a deletion archive key,
//		* e.g. s/z/a/ for sza251lrxrc1jad41h5mgilp8nysje52.jpg
//		*
//		* @param String key
//		* @throws MWException
//		* @return String
//		*/
//		public function getDeletedHashPath(key) {
//			if (strlen(key) < 31) {
//				throw new MWException("Invalid storage key 'key'.");
//			}
//			path = '';
//			for (i = 0; i < this.deletedHashLevels; i++) {
//				path .= key[i] . '/';
//			}
//
//			return path;
//		}
//
//		/**
//		* If a path is a virtual URL, resolve it to a storage path.
//		* Otherwise, just return the path as it is.
//		*
//		* @param String path
//		* @return String
//		* @throws MWException
//		*/
//		protected function resolveToStoragePath(path) {
//			if (this.isVirtualUrl(path)) {
//				return this.resolveVirtualUrl(path);
//			}
//
//			return path;
//		}
//
//		/**
//		* Get a local FS copy of a file with a given virtual URL/storage path.
//		* Temporary files may be purged when the file Object falls out of scope.
//		*
//		* @param String virtualUrl
//		* @return TempFSFile|null Returns null on failure
//		*/
//		public function getLocalCopy(virtualUrl) {
//			path = this.resolveToStoragePath(virtualUrl);
//
//			return this.backend.getLocalCopy([ 'src' => path ]);
//		}
//
//		/**
//		* Get a local FS file with a given virtual URL/storage path.
//		* The file is either an original or a copy. It should not be changed.
//		* Temporary files may be purged when the file Object falls out of scope.
//		*
//		* @param String virtualUrl
//		* @return FSFile|null Returns null on failure.
//		*/
//		public function getLocalReference(virtualUrl) {
//			path = this.resolveToStoragePath(virtualUrl);
//
//			return this.backend.getLocalReference([ 'src' => path ]);
//		}
//
//		/**
//		* Get properties of a file with a given virtual URL/storage path.
//		* Properties should ultimately be obtained via FSFile::getProps().
//		*
//		* @param String virtualUrl
//		* @return array
//		*/
//		public function getFileProps(virtualUrl) {
//			fsFile = this.getLocalReference(virtualUrl);
//			mwProps = new MWFileProps(MimeMagic::singleton());
//			if (fsFile) {
//				props = mwProps.getPropsFromPath(fsFile.getPath(), true);
//			} else {
//				props = mwProps.newPlaceholderProps();
//			}
//
//			return props;
//		}
//
//		/**
//		* Get the timestamp of a file with a given virtual URL/storage path
//		*
//		* @param String virtualUrl
//		* @return String|boolean False on failure
//		*/
//		public function getFileTimestamp(virtualUrl) {
//			path = this.resolveToStoragePath(virtualUrl);
//
//			return this.backend.getFileTimestamp([ 'src' => path ]);
//		}
//
//		/**
//		* Get the size of a file with a given virtual URL/storage path
//		*
//		* @param String virtualUrl
//		* @return int|boolean False on failure
//		*/
//		public function getFileSize(virtualUrl) {
//			path = this.resolveToStoragePath(virtualUrl);
//
//			return this.backend.getFileSize([ 'src' => path ]);
//		}
//
//		/**
//		* Get the sha1 (super 36) of a file with a given virtual URL/storage path
//		*
//		* @param String virtualUrl
//		* @return String|boolean
//		*/
//		public function getFileSha1(virtualUrl) {
//			path = this.resolveToStoragePath(virtualUrl);
//
//			return this.backend.getFileSha1Base36([ 'src' => path ]);
//		}
//
//		/**
//		* Attempt to stream a file with the given virtual URL/storage path
//		*
//		* @param String virtualUrl
//		* @param array headers Additional HTTP headers to send on success
//		* @param array optHeaders HTTP request headers (if-modified-since, range, ...)
//		* @return Status
//		* @since 1.27
//		*/
//		public function streamFileWithStatus(virtualUrl, headers = [], optHeaders = []) {
//			path = this.resolveToStoragePath(virtualUrl);
//			params = [ 'src' => path, 'headers' => headers, 'options' => optHeaders ];
//
//			status = this.newGood();
//			status.merge(this.backend.streamFile(params));
//
//			return status;
//		}
//
//		/**
//		* Attempt to stream a file with the given virtual URL/storage path
//		*
//		* @deprecated since 1.26, use streamFileWithStatus
//		* @param String virtualUrl
//		* @param array headers Additional HTTP headers to send on success
//		* @return boolean Success
//		*/
//		public function streamFile(virtualUrl, headers = []) {
//			return this.streamFileWithStatus(virtualUrl, headers).isOK();
//		}
//
//		/**
//		* Call a callback function for every public regular file in the repository.
//		* This only acts on the current version of files, not any old versions.
//		* May use either the database or the filesystem.
//		*
//		* @param callable callback
//		* @return void
//		*/
//		public function enumFiles(callback) {
//			this.enumFilesInStorage(callback);
//		}
//
//		/**
//		* Call a callback function for every public file in the repository.
//		* May use either the database or the filesystem.
//		*
//		* @param callable callback
//		* @return void
//		*/
//		protected function enumFilesInStorage(callback) {
//			publicRoot = this.getZonePath('public');
//			numDirs = 1 << (this.hashLevels * 4);
//			// Use a priori assumptions about directory structure
//			// to reduce the tree height of the scanning process.
//			for (flatIndex = 0; flatIndex < numDirs; flatIndex++) {
//				hexString = sprintf("%0{this.hashLevels}x", flatIndex);
//				path = publicRoot;
//				for (hexPos = 0; hexPos < this.hashLevels; hexPos++) {
//					path .= '/' . substr(hexString, 0, hexPos + 1);
//				}
//				iterator = this.backend.getFileList([ 'dir' => path ]);
//				foreach (iterator as name) {
//					// Each item returned is a public file
//					call_user_func(callback, "{path}/{name}");
//				}
//			}
//		}
//
//		/**
//		* Determine if a relative path is valid, i.e. not blank or involving directory traveral
//		*
//		* @param String filename
//		* @return boolean
//		*/
//		public function validateFilename(filename) {
//			if (strval(filename) == '') {
//				return false;
//			}
//
//			return FileBackend::isPathTraversalFree(filename);
//		}
//
//		/**
//		* Get a callback function to use for cleaning error message parameters
//		*
//		* @return array
//		*/
//		function getErrorCleanupFunction() {
//			switch (this.pathDisclosureProtection) {
//				case 'none':
//				case 'simple': // b/c
//					callback = [ this, 'passThrough' ];
//					break;
//				default: // 'paranoid'
//					callback = [ this, 'paranoidClean' ];
//			}
//			return callback;
//		}
//
//		/**
//		* Path disclosure protection function
//		*
//		* @param String param
//		* @return String
//		*/
//		function paranoidClean(param) {
//			return '[hidden]';
//		}
//
//		/**
//		* Path disclosure protection function
//		*
//		* @param String param
//		* @return String
//		*/
//		function passThrough(param) {
//			return param;
//		}
//
//		/**
//		* Create a new fatal error
//		*
//		* @param String message
//		* @return Status
//		*/
//		public function newFatal(message /*, parameters...*/) {
//			status = call_user_func_array([ 'Status', 'newFatal' ], func_get_args());
//			status.cleanCallback = this.getErrorCleanupFunction();
//
//			return status;
//		}
//
//		/**
//		* Create a new good result
//		*
//		* @param null|String value
//		* @return Status
//		*/
//		public function newGood(value = null) {
//			status = Status::newGood(value);
//			status.cleanCallback = this.getErrorCleanupFunction();
//
//			return status;
//		}
//
//		/**
//		* Checks if there is a redirect named as title. If there is, return the
//		* title Object. If not, return false.
//		* STUB
//		*
//		* @param Title title Title of image
//		* @return boolean
//		*/
//		public function checkRedirect(Title title) {
//			return false;
//		}
//
//		/**
//		* Invalidates image redirect cache related to that image
//		* Doesn't do anything for repositories that don't support image redirects.
//		*
//		* STUB
//		* @param Title title Title of image
//		*/
//		public function invalidateImageRedirect(Title title) {
//		}
//
//		/**
//		* Get the human-readable name of the repo
//		*
//		* @return String
//		*/
//		public function getDisplayName() {
//			global wgSitename;
//
//			if (this.isLocal()) {
//				return wgSitename;
//			}
//
//			// 'shared-repo-name-wikimediacommons' is used when wgUseInstantCommons = true
//			return wfMessageFallback('shared-repo-name-' . this.name, 'shared-repo').text();
//		}
//
//		/**
//		* Get the portion of the file that contains the origin file name.
//		* If that name is too long, then the name "thumbnail.<ext>" will be given.
//		*
//		* @param String name
//		* @return String
//		*/
//		public function nameForThumb(name) {
//			if (strlen(name) > this.abbrvThreshold) {
//				ext = FileBackend::extensionFromPath(name);
//				name = (ext == '') ? 'thumbnail' : "thumbnail.ext";
//			}
//
//			return name;
//		}
//
//		/**
//		* Returns true if this the local file repository.
//		*
//		* @return boolean
//		*/
//		public function isLocal() {
//			return this.getName() == 'local';
//		}
//
//		/**
//		* Get a key on the primary cache for this repository.
//		* Returns false if the repository's cache is not accessible at this site.
//		* The parameters are the parts of the key, as for wfMemcKey().
//		*
//		* STUB
//		* @return boolean
//		*/
//		public function getSharedCacheKey(/*...*/) {
//			return false;
//		}
//
//		/**
//		* Get a key for this repo in the local cache domain. These cache keys are
//		* not shared with remote instances of the repo.
//		* The parameters are the parts of the key, as for wfMemcKey().
//		*
//		* @return String
//		*/
//		public function getLocalCacheKey(/*...*/) {
//			args = func_get_args();
//			array_unshift(args, 'filerepo', this.getName());
//
//			return call_user_func_array('wfMemcKey', args);
//		}
//
//		/**
//		* Get a temporary private FileRepo associated with this repo.
//		*
//		* Files will be created in the temp zone of this repo.
//		* It will have the same backend as this repo.
//		*
//		* @return TempFileRepo
//		*/
//		public function getTempRepo() {
//			return new TempFileRepo([
//				'name' => "{this.name}-temp",
//				'backend' => this.backend,
//				'zones' => [
//					'public' => [
//						// Same place storeTemp() uses in the super repo, though
//						// the path hashing is mismatched, which is annoying.
//						'container' => this.zones['temp']['container'],
//						'directory' => this.zones['temp']['directory']
//					],
//					'thumb' => [
//						'container' => this.zones['temp']['container'],
//						'directory' => this.zones['temp']['directory'] == ''
//							? 'thumb'
//							: this.zones['temp']['directory'] . '/thumb'
//					],
//					'transcoded' => [
//						'container' => this.zones['temp']['container'],
//						'directory' => this.zones['temp']['directory'] == ''
//							? 'transcoded'
//							: this.zones['temp']['directory'] . '/transcoded'
//					]
//				],
//				'hashLevels' => this.hashLevels, // performance
//				'isPrivate' => true // all in temp zone
//			]);
//		}
//
//		/**
//		* Get an UploadStash associated with this repo.
//		*
//		* @param User user
//		* @return UploadStash
//		*/
//		public function getUploadStash(User user = null) {
//			return new UploadStash(this, user);
//		}
//
//		/**
//		* Throw an exception if this repo is read-only by design.
//		* This does not and should not check getReadOnlyReason().
//		*
//		* @return void
//		* @throws MWException
//		*/
//		protected function assertWritableRepo() {
//		}
//
//		/**
//		* Return information about the repository.
//		*
//		* @return array
//		* @since 1.22
//		*/
//		public function getInfo() {
//			ret = [
//				'name' => this.getName(),
//				'displayname' => this.getDisplayName(),
//				'rootUrl' => this.getZoneUrl('public'),
//				'local' => this.isLocal(),
//			];
//
//			optionalSettings = [
//				'url', 'thumbUrl', 'initialCapital', 'descBaseUrl', 'scriptDirUrl', 'articleUrl',
//				'fetchDescription', 'descriptionCacheExpiry', 'scriptExtension', 'favicon'
//			];
//			foreach (optionalSettings as k) {
//				if (isset(this.k)) {
//					ret[k] = this.k;
//				}
//			}
//
//			return ret;
//		}
//
//		/**
//		* Returns whether or not storage is SHA-1 based
//		* @return boolean
//		*/
//		public function hasSha1Storage() {
//			return this.hasSha1Storage;
//		}
//
//		/**
//		* Returns whether or not repo supports having originals SHA-1s in the thumb URLs
//		* @return boolean
//		*/
//		public function supportsSha1URLs() {
//			return this.supportsSha1URLs;
//		}

	public static final int Zone__public = 0, Zone__thumb = 1;
}