2027 lines
60 KiB
PHP
2027 lines
60 KiB
PHP
<?php
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/**
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* @defgroup FileRepo File Repository
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*
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* @brief This module handles how MediaWiki interacts with filesystems.
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*
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* @details
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*/
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use MediaWiki\Linker\LinkTarget;
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use MediaWiki\MediaWikiServices;
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use MediaWiki\Page\PageIdentity;
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use MediaWiki\Permissions\Authority;
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use MediaWiki\User\UserIdentity;
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/**
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* Base code for file repositories.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup FileRepo
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*/
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/**
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* Base class for file repositories
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*
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* See [the architecture doc](@ref filerepoarch) for more information.
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*
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* @ingroup FileRepo
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*/
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class FileRepo {
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public const DELETE_SOURCE = 1;
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public const OVERWRITE = 2;
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public const OVERWRITE_SAME = 4;
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public const SKIP_LOCKING = 8;
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public const NAME_AND_TIME_ONLY = 1;
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/** @var bool Whether to fetch commons image description pages and display
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* them on the local wiki
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*/
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public $fetchDescription;
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/** @var int */
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public $descriptionCacheExpiry;
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/** @var bool */
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protected $hasSha1Storage = false;
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/** @var bool */
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protected $supportsSha1URLs = false;
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/** @var FileBackend */
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protected $backend;
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/** @var array Map of zones to config */
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protected $zones = [];
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/** @var string URL of thumb.php */
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protected $thumbScriptUrl;
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/** @var bool Whether to skip media file transformation on parse and rely
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* on a 404 handler instead.
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*/
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protected $transformVia404;
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/** @var string URL of image description pages, e.g.
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* https://en.wikipedia.org/wiki/File:
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*/
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protected $descBaseUrl;
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/** @var string URL of the MediaWiki installation, equivalent to
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* $wgScriptPath, e.g. https://en.wikipedia.org/w
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*/
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protected $scriptDirUrl;
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/** @var string Equivalent to $wgArticlePath, e.g. https://en.wikipedia.org/wiki/$1 */
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protected $articleUrl;
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/** @var bool Equivalent to $wgCapitalLinks (or $wgCapitalLinkOverrides[NS_FILE],
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* determines whether filenames implicitly start with a capital letter.
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* The current implementation may give incorrect description page links
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* when the local $wgCapitalLinks and initialCapital are mismatched.
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*/
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protected $initialCapital;
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/** @var string May be 'paranoid' to remove all parameters from error
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* messages, 'none' to leave the paths in unchanged, or 'simple' to
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* replace paths with placeholders. Default for LocalRepo is
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* 'simple'.
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*/
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protected $pathDisclosureProtection = 'simple';
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/** @var string|false Public zone URL. */
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protected $url;
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/** @var string The base thumbnail URL. Defaults to "<url>/thumb". */
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protected $thumbUrl;
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/** @var int The number of directory levels for hash-based division of files */
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protected $hashLevels;
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/** @var int The number of directory levels for hash-based division of deleted files */
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protected $deletedHashLevels;
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/** @var int File names over this size will use the short form of thumbnail
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* names. Short thumbnail names only have the width, parameters, and the
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* extension.
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*/
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protected $abbrvThreshold;
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/** @var string The URL of the repo's favicon, if any */
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protected $favicon;
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/** @var bool Whether all zones should be private (e.g. private wiki repo) */
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protected $isPrivate;
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/** @var callable Override these in the base class */
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protected $fileFactory = [ UnregisteredLocalFile::class, 'newFromTitle' ];
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/** @var callable|false Override these in the base class */
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protected $oldFileFactory = false;
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/** @var callable|false Override these in the base class */
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protected $fileFactoryKey = false;
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/** @var callable|false Override these in the base class */
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protected $oldFileFactoryKey = false;
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/** @var string URL of where to proxy thumb.php requests to.
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* Example: http://127.0.0.1:8888/wiki/dev/thumb/
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*/
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protected $thumbProxyUrl;
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/** @var string Secret key to pass as an X-Swift-Secret header to the proxied thumb service */
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protected $thumbProxySecret;
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/** @var bool Disable local image scaling */
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protected $disableLocalTransform = false;
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/** @var WANObjectCache */
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protected $wanCache;
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/**
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* @var string
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* @note Use $this->getName(). Public for back-compat only
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* @todo make protected
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*/
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public $name;
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/**
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* @see Documentation of info options at $wgLocalFileRepo
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* @param array|null $info
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* @throws MWException
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* @phan-assert array $info
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*/
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public function __construct( array $info = null ) {
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// Verify required settings presence
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if (
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$info === null
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|| !array_key_exists( 'name', $info )
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|| !array_key_exists( 'backend', $info )
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) {
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throw new MWException( __CLASS__ .
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" requires an array of options having both 'name' and 'backend' keys.\n" );
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}
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// Required settings
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$this->name = $info['name'];
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if ( $info['backend'] instanceof FileBackend ) {
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$this->backend = $info['backend']; // useful for testing
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} else {
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$this->backend =
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MediaWikiServices::getInstance()->getFileBackendGroup()->get( $info['backend'] );
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}
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// Optional settings that can have no value
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$optionalSettings = [
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'descBaseUrl', 'scriptDirUrl', 'articleUrl', 'fetchDescription',
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'thumbScriptUrl', 'pathDisclosureProtection', 'descriptionCacheExpiry',
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'favicon', 'thumbProxyUrl', 'thumbProxySecret', 'disableLocalTransform'
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];
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foreach ( $optionalSettings as $var ) {
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if ( isset( $info[$var] ) ) {
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$this->$var = $info[$var];
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}
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}
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// Optional settings that have a default
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$localCapitalLinks =
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MediaWikiServices::getInstance()->getNamespaceInfo()->isCapitalized( NS_FILE );
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$this->initialCapital = $info['initialCapital'] ?? $localCapitalLinks;
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if ( $localCapitalLinks && !$this->initialCapital ) {
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// If the local wiki's file namespace requires an initial capital, but a foreign file
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// repo doesn't, complications will result. Linker code will want to auto-capitalize the
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// first letter of links to files, but those links might actually point to files on
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// foreign wikis with initial-lowercase names. This combination is not likely to be
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// used by anyone anyway, so we just outlaw it to save ourselves the bugs. If you want
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// to include a foreign file repo with initialCapital false, set your local file
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// namespace to not be capitalized either.
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throw new InvalidArgumentException(
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'File repos with initial capital false are not allowed on wikis where the File ' .
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'namespace has initial capital true' );
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}
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$this->url = $info['url'] ?? false; // a subclass may set the URL (e.g. ForeignAPIRepo)
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if ( isset( $info['thumbUrl'] ) ) {
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$this->thumbUrl = $info['thumbUrl'];
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} else {
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$this->thumbUrl = $this->url ? "{$this->url}/thumb" : false;
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}
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$this->hashLevels = $info['hashLevels'] ?? 2;
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$this->deletedHashLevels = $info['deletedHashLevels'] ?? $this->hashLevels;
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$this->transformVia404 = !empty( $info['transformVia404'] );
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$this->abbrvThreshold = $info['abbrvThreshold'] ?? 255;
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$this->isPrivate = !empty( $info['isPrivate'] );
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// Give defaults for the basic zones...
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$this->zones = $info['zones'] ?? [];
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foreach ( [ 'public', 'thumb', 'transcoded', 'temp', 'deleted' ] as $zone ) {
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if ( !isset( $this->zones[$zone]['container'] ) ) {
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$this->zones[$zone]['container'] = "{$this->name}-{$zone}";
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}
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if ( !isset( $this->zones[$zone]['directory'] ) ) {
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$this->zones[$zone]['directory'] = '';
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}
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if ( !isset( $this->zones[$zone]['urlsByExt'] ) ) {
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$this->zones[$zone]['urlsByExt'] = [];
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}
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}
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$this->supportsSha1URLs = !empty( $info['supportsSha1URLs'] );
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$this->wanCache = $info['wanCache'] ?? WANObjectCache::newEmpty();
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}
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/**
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* Get the file backend instance. Use this function wisely.
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*
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* @return FileBackend
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*/
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public function getBackend() {
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return $this->backend;
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}
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/**
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* Get an explanatory message if this repo is read-only.
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* This checks if an administrator disabled writes to the backend.
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*
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* @return string|bool Returns false if the repo is not read-only
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*/
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public function getReadOnlyReason() {
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return $this->backend->getReadOnlyReason();
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}
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/**
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* Check if a single zone or list of zones is defined for usage
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*
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* @param string[]|string $doZones Only do a particular zones
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* @throws MWException
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* @return Status
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*/
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protected function initZones( $doZones = [] ) {
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$status = $this->newGood();
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foreach ( (array)$doZones as $zone ) {
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$root = $this->getZonePath( $zone );
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if ( $root === null ) {
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throw new MWException( "No '$zone' zone defined in the {$this->name} repo." );
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}
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}
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return $status;
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}
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/**
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* Determine if a string is an mwrepo:// URL
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*
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* @param string $url
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* @return bool
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*/
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public static function isVirtualUrl( $url ) {
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return substr( $url, 0, 9 ) == 'mwrepo://';
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}
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/**
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* Get a URL referring to this repository, with the private mwrepo protocol.
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* The suffix, if supplied, is considered to be unencoded, and will be
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* URL-encoded before being returned.
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*
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* @param string|bool $suffix
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* @return string
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*/
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public function getVirtualUrl( $suffix = false ) {
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$path = 'mwrepo://' . $this->name;
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if ( $suffix !== false ) {
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$path .= '/' . rawurlencode( $suffix );
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}
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return $path;
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}
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/**
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* Get the URL corresponding to one of the four basic zones
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*
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* @param string $zone One of: public, deleted, temp, thumb
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* @param string|null $ext Optional file extension
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* @return string|bool
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*/
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public function getZoneUrl( $zone, $ext = null ) {
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if ( in_array( $zone, [ 'public', 'thumb', 'transcoded' ] ) ) {
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// standard public zones
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if ( $ext !== null && isset( $this->zones[$zone]['urlsByExt'][$ext] ) ) {
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// custom URL for extension/zone
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return $this->zones[$zone]['urlsByExt'][$ext];
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} elseif ( isset( $this->zones[$zone]['url'] ) ) {
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// custom URL for zone
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return $this->zones[$zone]['url'];
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}
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}
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switch ( $zone ) {
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case 'public':
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return $this->url;
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case 'temp':
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case 'deleted':
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return false; // no public URL
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case 'thumb':
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return $this->thumbUrl;
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case 'transcoded':
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return "{$this->url}/transcoded";
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default:
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return false;
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}
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}
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/**
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* @return bool Whether non-ASCII path characters are allowed
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*/
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public function backendSupportsUnicodePaths() {
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return (bool)( $this->getBackend()->getFeatures() & FileBackend::ATTR_UNICODE_PATHS );
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}
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/**
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* Get the backend storage path corresponding to a virtual URL.
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* Use this function wisely.
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*
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* @param string $url
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* @throws MWException
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* @return string
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*/
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public function resolveVirtualUrl( $url ) {
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if ( substr( $url, 0, 9 ) != 'mwrepo://' ) {
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throw new MWException( __METHOD__ . ': unknown protocol' );
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}
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$bits = explode( '/', substr( $url, 9 ), 3 );
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if ( count( $bits ) != 3 ) {
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throw new MWException( __METHOD__ . ": invalid mwrepo URL: $url" );
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}
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list( $repo, $zone, $rel ) = $bits;
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if ( $repo !== $this->name ) {
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throw new MWException( __METHOD__ . ": fetching from a foreign repo is not supported" );
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}
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$base = $this->getZonePath( $zone );
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if ( !$base ) {
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throw new MWException( __METHOD__ . ": invalid zone: $zone" );
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}
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return $base . '/' . rawurldecode( $rel );
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}
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/**
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* The storage container and base path of a zone
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*
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* @param string $zone
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* @return array (container, base path) or (null, null)
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*/
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protected function getZoneLocation( $zone ) {
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if ( !isset( $this->zones[$zone] ) ) {
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return [ null, null ]; // bogus
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}
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return [ $this->zones[$zone]['container'], $this->zones[$zone]['directory'] ];
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}
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/**
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* Get the storage path corresponding to one of the zones
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*
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* @param string $zone
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* @return string|null Returns null if the zone is not defined
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*/
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public function getZonePath( $zone ) {
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list( $container, $base ) = $this->getZoneLocation( $zone );
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if ( $container === null || $base === null ) {
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return null;
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}
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$backendName = $this->backend->getName();
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if ( $base != '' ) { // may not be set
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$base = "/{$base}";
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}
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return "mwstore://$backendName/{$container}{$base}";
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}
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/**
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* Create a new File object from the local repository
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*
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* @param PageIdentity|LinkTarget|string $title
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* @param bool|string $time Time at which the image was uploaded. If this
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* is specified, the returned object will be an instance of the
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* repository's old file class instead of a current file. Repositories
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* not supporting version control should return false if this parameter
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* is set.
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* @return File|null A File, or null if passed an invalid Title
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*/
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public function newFile( $title, $time = false ) {
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$title = File::normalizeTitle( $title );
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if ( !$title ) {
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return null;
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}
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if ( $time ) {
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if ( $this->oldFileFactory ) {
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return call_user_func( $this->oldFileFactory, $title, $this, $time );
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} else {
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return null;
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}
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} else {
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return call_user_func( $this->fileFactory, $title, $this );
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}
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}
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/**
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* Find an instance of the named file created at the specified time
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* Returns false if the file does not exist. Repositories not supporting
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* version control should return false if the time is specified.
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*
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* @param PageIdentity|LinkTarget|string $title
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* @param array $options Associative array of options:
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* time: requested time for a specific file version, or false for the
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* current version. An image object will be returned which was
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* created at the specified time (which may be archived or current).
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* ignoreRedirect: If true, do not follow file redirects
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* private: If an Authority object, return restricted (deleted) files if the
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* performer is allowed to view them. Otherwise, such files will not
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* be found. If set and not an Authority object, throws an exception.
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* Authority is only accepted since 1.37, User was required before.
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* latest: If true, load from the latest available data into File objects
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* @return File|bool False on failure
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* @throws InvalidArgumentException
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*/
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public function findFile( $title, $options = [] ) {
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if ( !empty( $options['private'] ) && !( $options['private'] instanceof Authority ) ) {
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throw new InvalidArgumentException(
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__METHOD__ . ' called with the `private` option set to something ' .
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'other than an Authority object'
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);
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}
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$title = File::normalizeTitle( $title );
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if ( !$title ) {
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return false;
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}
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if ( isset( $options['bypassCache'] ) ) {
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$options['latest'] = $options['bypassCache']; // b/c
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}
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$time = $options['time'] ?? false;
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$flags = !empty( $options['latest'] ) ? File::READ_LATEST : 0;
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# First try the current version of the file to see if it precedes the timestamp
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$img = $this->newFile( $title );
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if ( !$img ) {
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return false;
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}
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$img->load( $flags );
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if ( $img->exists() && ( !$time || $img->getTimestamp() == $time ) ) {
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return $img;
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}
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# Now try an old version of the file
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if ( $time !== false ) {
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$img = $this->newFile( $title, $time );
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if ( $img ) {
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$img->load( $flags );
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if ( $img->exists() ) {
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if ( !$img->isDeleted( File::DELETED_FILE ) ) {
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return $img; // always OK
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} elseif (
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// If its not empty, its an Authority object
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!empty( $options['private'] ) &&
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$img->userCan( File::DELETED_FILE, $options['private'] )
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) {
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return $img;
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}
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}
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}
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}
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# Now try redirects
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if ( !empty( $options['ignoreRedirect'] ) ) {
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return false;
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}
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$redir = $this->checkRedirect( $title );
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if ( $redir && $title->getNamespace() === NS_FILE ) {
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$img = $this->newFile( $redir );
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if ( !$img ) {
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return false;
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}
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$img->load( $flags );
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if ( $img->exists() ) {
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$img->redirectedFrom( $title->getDBkey() );
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return $img;
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}
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|
}
|
|
|
|
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'] );
|
|
|
|
if (
|
|
!empty( $options['private'] ) &&
|
|
!( $options['private'] instanceof Authority )
|
|
) {
|
|
$options['private'] = RequestContext::getMain()->getAuthority();
|
|
}
|
|
} 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|bool False on failure
|
|
* @throws InvalidArgumentException if the `private` option is set and not an Authority object
|
|
*/
|
|
public function findFileFromKey( $sha1, $options = [] ) {
|
|
if ( !empty( $options['private'] ) && !( $options['private'] instanceof Authority ) ) {
|
|
throw new InvalidArgumentException(
|
|
__METHOD__ . ' called with the `private` option set to something ' .
|
|
'other than an Authority object'
|
|
);
|
|
}
|
|
|
|
$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 (
|
|
// If its not empty, its an Authority object
|
|
!empty( $options['private'] ) &&
|
|
$img->userCan( File::DELETED_FILE, $options['private'] )
|
|
) {
|
|
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 string[] $hashes An array of hashes
|
|
* @return File[][] 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 LocalFile[]
|
|
*/
|
|
public function findFilesByPrefix( $prefix, $limit ) {
|
|
return [];
|
|
}
|
|
|
|
/**
|
|
* Get the URL of thumb.php
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getThumbScriptUrl() {
|
|
return $this->thumbScriptUrl;
|
|
}
|
|
|
|
/**
|
|
* Get the URL thumb.php requests are being proxied to
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getThumbProxyUrl() {
|
|
return $this->thumbProxyUrl;
|
|
}
|
|
|
|
/**
|
|
* Get the secret key for the proxied thumb service
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getThumbProxySecret() {
|
|
return $this->thumbProxySecret;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the repository can transform files via a 404 handler
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function canTransformVia404() {
|
|
return $this->transformVia404;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the repository can transform files locally.
|
|
*
|
|
* @since 1.36
|
|
* @return bool
|
|
*/
|
|
public function canTransformLocally() {
|
|
return !$this->disableLocalTransform;
|
|
}
|
|
|
|
/**
|
|
* Get the name of a file from its title
|
|
*
|
|
* @param PageIdentity|LinkTarget $title
|
|
* @return string
|
|
*/
|
|
public function getNameFromTitle( $title ) {
|
|
if (
|
|
$this->initialCapital !=
|
|
MediaWikiServices::getInstance()->getNamespaceInfo()->isCapitalized( NS_FILE )
|
|
) {
|
|
$name = $title->getDBkey();
|
|
if ( $this->initialCapital ) {
|
|
$name = MediaWikiServices::getInstance()->getContentLanguage()->ucfirst( $name );
|
|
}
|
|
} else {
|
|
$name = $title->getDBkey();
|
|
}
|
|
|
|
return $name;
|
|
}
|
|
|
|
/**
|
|
* 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 function getHashPath( $name ) {
|
|
return self::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 = $parts[1] ?? $suffix; // hash path is not based on timestamp
|
|
return self::getHashPathForLevel( $name, $this->hashLevels );
|
|
}
|
|
|
|
/**
|
|
* @param string $name
|
|
* @param int $levels
|
|
* @return string
|
|
*/
|
|
protected static function getHashPathForLevel( $name, $levels ) {
|
|
if ( $levels == 0 ) {
|
|
return '';
|
|
} else {
|
|
$hash = md5( $name );
|
|
$path = '';
|
|
for ( $i = 1; $i <= $levels; $i++ ) {
|
|
$path .= substr( $hash, 0, $i ) . '/';
|
|
}
|
|
|
|
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|string[] $query Query string to append
|
|
* @param string $entry Entry point; defaults to index
|
|
* @return string|bool False on failure
|
|
*/
|
|
public function makeUrl( $query = '', $entry = 'index' ) {
|
|
if ( isset( $this->scriptDirUrl ) ) {
|
|
return wfAppendQuery( "{$this->scriptDirUrl}/{$entry}.php", $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 ( $this->descBaseUrl !== null ) {
|
|
# "http://example.com/wiki/File:"
|
|
return $this->descBaseUrl . $encName;
|
|
}
|
|
if ( $this->articleUrl !== null ) {
|
|
# "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 ( $this->scriptDirUrl !== null ) {
|
|
# "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|null $lang Language to fetch it in, if any.
|
|
* @return string|false
|
|
*/
|
|
public function getDescriptionRenderUrl( $name, $lang = null ) {
|
|
$query = 'action=render';
|
|
if ( $lang !== null ) {
|
|
$query .= '&uselang=' . urlencode( $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|bool False on failure
|
|
*/
|
|
public function getDescriptionStylesheetUrl() {
|
|
if ( isset( $this->scriptDirUrl ) ) {
|
|
// Must match canonical query parameter order for optimum caching
|
|
// See HtmlCacheUpdater::getUrls
|
|
return $this->makeUrl( 'title=MediaWiki:Filepage.css&action=raw&ctype=text/css' );
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Store a file to a given destination.
|
|
*
|
|
* Using FSFile/TempFSFile can improve performance via caching.
|
|
* Using TempFSFile can further improve performance by signalling that it is safe
|
|
* to touch the source file or write extended attribute metadata to it directly.
|
|
*
|
|
* @param string|FSFile $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
|
|
*
|
|
* @see FileRepo::store()
|
|
*
|
|
* @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( $src, $dstZone, $dstRel ) = $triplet;
|
|
$srcPath = ( $src instanceof FSFile ) ? $src->getPath() : $src;
|
|
wfDebug( __METHOD__
|
|
. "( \$src='$srcPath', \$dstZone='$dstZone', \$dstRel='$dstRel' )"
|
|
);
|
|
// Resolve source path
|
|
if ( $src instanceof FSFile ) {
|
|
$op = 'store';
|
|
} else {
|
|
$src = $this->resolveToStoragePathIfVirtual( $src );
|
|
$op = FileBackend::isStoragePath( $src ) ? 'copy' : 'store';
|
|
}
|
|
// 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 );
|
|
}
|
|
|
|
// Copy the source file to the destination
|
|
$operations[] = [
|
|
'op' => $op,
|
|
'src' => $src, // storage path (copy) or local file path (store)
|
|
'dst' => $dstPath,
|
|
'overwrite' => ( $flags & self::OVERWRITE ) ? true : false,
|
|
'overwriteSame' => ( $flags & self::OVERWRITE_SAME ) ? true : false,
|
|
];
|
|
}
|
|
|
|
// 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 string[] $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->resolveToStoragePathIfVirtual( $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.
|
|
*
|
|
* Using FSFile/TempFSFile can improve performance via caching.
|
|
* Using TempFSFile can further improve performance by signalling that it is safe
|
|
* to touch the source file or write extended attribute metadata to it directly.
|
|
*
|
|
* @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 ] ] );
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* @see FileRepo::quickImport()
|
|
*
|
|
* 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->resolveToStoragePathIfVirtual( $src );
|
|
$op = FileBackend::isStoragePath( $src ) ? 'copy' : 'store';
|
|
}
|
|
$dst = $this->resolveToStoragePathIfVirtual( $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, // storage path (copy) or local path/FSFile (store)
|
|
'dst' => $dst,
|
|
'headers' => $headers
|
|
];
|
|
$status->merge( $this->initDirectory( dirname( $dst ) ) );
|
|
}
|
|
$status->merge( $this->backend->doQuickOperations( $operations ) );
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* 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->resolveToStoragePathIfVirtual( $dir ) ] ) );
|
|
|
|
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->resolveToStoragePathIfVirtual( $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 base 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 bool 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" );
|
|
|
|
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->resolveToStoragePathIfVirtual( $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.
|
|
*
|
|
* Using FSFile/TempFSFile can improve performance via caching.
|
|
* Using TempFSFile can further improve performance by signalling that it is safe
|
|
* to touch the source file or write extended attribute metadata to it directly.
|
|
*
|
|
* 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 );
|
|
}
|
|
$status->value = $status->value[0] ?? false;
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* Publish a batch of files
|
|
*
|
|
* @see FileRepo::publish()
|
|
*
|
|
* @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 = $ntuple[3] ?? [];
|
|
// Resolve source to a storage path if virtual
|
|
$srcPath = $this->resolveToStoragePathIfVirtual( $srcPath );
|
|
if ( !$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 = $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 ) ) {
|
|
$operations[] = [
|
|
'op' => ( $flags & self::DELETE_SOURCE ) ? 'move' : 'copy',
|
|
'src' => $srcPath,
|
|
'dst' => $dstPath,
|
|
'overwrite' => true, // replace current
|
|
'headers' => $headers
|
|
];
|
|
} else {
|
|
$operations[] = [
|
|
'op' => 'store',
|
|
'src' => $src, // storage path (copy) or local path/FSFile (store)
|
|
'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 ) {
|
|
Wikimedia\suppressWarnings();
|
|
unlink( $file ); // FS cleanup
|
|
Wikimedia\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->resolveToStoragePathIfVirtual( $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->resolveToStoragePathIfVirtual( $dir ) ] ) );
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* Checks existence of a file
|
|
*
|
|
* @param string $file Virtual URL (or storage path) of file to check
|
|
* @return bool
|
|
*/
|
|
public function fileExists( $file ) {
|
|
$result = $this->fileExistsBatch( [ $file ] );
|
|
|
|
return $result[0];
|
|
}
|
|
|
|
/**
|
|
* Checks existence of an array of files.
|
|
*
|
|
* @param string[] $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, 'resolveToStoragePathIfVirtual' ], $files );
|
|
$this->backend->preloadFileStat( [ 'srcs' => $paths ] );
|
|
|
|
$result = [];
|
|
foreach ( $files as $key => $file ) {
|
|
$path = $this->resolveToStoragePathIfVirtual( $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 [ $srcRel, $archiveRel ] ) {
|
|
if ( !$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 T33792
|
|
];
|
|
}
|
|
|
|
// 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 string[] $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 resolveToStoragePathIfVirtual( $path ) {
|
|
if ( self::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->resolveToStoragePathIfVirtual( $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->resolveToStoragePathIfVirtual( $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( MediaWiki\MediaWikiServices::getInstance()->getMimeAnalyzer() );
|
|
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|bool False on failure
|
|
*/
|
|
public function getFileTimestamp( $virtualUrl ) {
|
|
$path = $this->resolveToStoragePathIfVirtual( $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|false
|
|
*/
|
|
public function getFileSize( $virtualUrl ) {
|
|
$path = $this->resolveToStoragePathIfVirtual( $virtualUrl );
|
|
|
|
return $this->backend->getFileSize( [ 'src' => $path ] );
|
|
}
|
|
|
|
/**
|
|
* Get the sha1 (base 36) of a file with a given virtual URL/storage path
|
|
*
|
|
* @param string $virtualUrl
|
|
* @return string|false
|
|
*/
|
|
public function getFileSha1( $virtualUrl ) {
|
|
$path = $this->resolveToStoragePathIfVirtual( $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->resolveToStoragePathIfVirtual( $virtualUrl );
|
|
$params = [ 'src' => $path, 'headers' => $headers, 'options' => $optHeaders ];
|
|
|
|
// T172851: HHVM does not flush the output properly, causing OOM
|
|
ob_start( null, 1048576 );
|
|
ob_implicit_flush( true );
|
|
|
|
$status = $this->newGood();
|
|
$status->merge( $this->backend->streamFile( $params ) );
|
|
|
|
// T186565: Close the buffer, unless it has already been closed
|
|
// in HTTPFileStreamer::resetOutputBuffers().
|
|
if ( ob_get_status() ) {
|
|
ob_end_flush();
|
|
}
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* 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 ] );
|
|
if ( $iterator === null ) {
|
|
throw new MWException( __METHOD__ . ': could not get file listing for ' . $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 bool
|
|
*/
|
|
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 callable
|
|
*/
|
|
private 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
|
|
*/
|
|
public function paranoidClean( $param ) {
|
|
return '[hidden]';
|
|
}
|
|
|
|
/**
|
|
* Path disclosure protection function
|
|
*
|
|
* @param string $param
|
|
* @return string
|
|
*/
|
|
public function passThrough( $param ) {
|
|
return $param;
|
|
}
|
|
|
|
/**
|
|
* Create a new fatal error
|
|
*
|
|
* @param string $message
|
|
* @param mixed ...$parameters
|
|
* @return Status
|
|
*/
|
|
public function newFatal( $message, ...$parameters ) {
|
|
$status = Status::newFatal( $message, ...$parameters );
|
|
$status->cleanCallback = $this->getErrorCleanupFunction();
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* Create a new good result
|
|
*
|
|
* @param null|mixed $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 PageIdentity|LinkTarget $title Title of image
|
|
* @return Title|bool
|
|
*/
|
|
public function checkRedirect( $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 PageIdentity|LinkTarget $title Title of image
|
|
*/
|
|
public function invalidateImageRedirect( $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 bool
|
|
*/
|
|
public function isLocal() {
|
|
return $this->getName() == 'local';
|
|
}
|
|
|
|
/**
|
|
* Get a global, repository-qualified, WAN cache key
|
|
*
|
|
* This might be called from either the site context of the wiki that owns the repo or
|
|
* the site context of another wiki that simply has access to the repo. This returns
|
|
* false if the repository's cache is not accessible from the current site context.
|
|
*
|
|
* @param string $kClassSuffix Key collection name suffix (added to this repo class)
|
|
* @param mixed ...$components Additional key components
|
|
* @return string|false
|
|
*/
|
|
public function getSharedCacheKey( $kClassSuffix, ...$components ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get a site-local, repository-qualified, WAN cache key
|
|
*
|
|
* These cache keys are not shared among different site context and thus cannot be
|
|
* directly invalidated when repo objects are modified. These are useful when there
|
|
* is no accessible global cache or the values depend on the current site context.
|
|
*
|
|
* @param string $kClassSuffix Key collection name suffix (added to this repo class)
|
|
* @param mixed ...$components Additional key components
|
|
* @return string
|
|
*/
|
|
public function getLocalCacheKey( $kClassSuffix, ...$components ) {
|
|
return $this->wanCache->makeKey(
|
|
'filerepo-' . $kClassSuffix,
|
|
$this->getName(),
|
|
...$components
|
|
);
|
|
}
|
|
|
|
/**
|
|
* 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 base 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 UserIdentity|null $user
|
|
* @return UploadStash
|
|
*/
|
|
public function getUploadStash( UserIdentity $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', '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 bool
|
|
*/
|
|
public function hasSha1Storage() {
|
|
return $this->hasSha1Storage;
|
|
}
|
|
|
|
/**
|
|
* Returns whether or not repo supports having originals SHA-1s in the thumb URLs
|
|
* @return bool
|
|
*/
|
|
public function supportsSha1URLs() {
|
|
return $this->supportsSha1URLs;
|
|
}
|
|
}
|