<?php
+/**
+ * @defgroup FileRepo File Repository
+ *
+ * @brief This module handles how MediaWiki interacts with filesystems.
+ *
+ * @details
+ */
+
/**
* Base code for file repositories.
*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
* @file
* @ingroup FileRepo
*/
/**
- * Base class for file repositories.
- * Do not instantiate, use a derived class.
+ * Base class for file repositories
*
* @ingroup FileRepo
*/
-abstract class FileRepo {
- const FILES_ONLY = 1;
+class FileRepo {
const DELETE_SOURCE = 1;
const OVERWRITE = 2;
const OVERWRITE_SAME = 4;
- const SKIP_VALIDATION = 8;
+ const SKIP_LOCKING = 8;
+
+ /** @var FileBackend */
+ protected $backend;
+ /** @var Array Map of zones to config */
+ protected $zones = array();
var $thumbScriptUrl, $transformVia404;
var $descBaseUrl, $scriptDirUrl, $scriptExtension, $articleUrl;
var $fetchDescription, $initialCapital;
- var $pathDisclosureProtection = 'paranoid';
- var $descriptionCacheExpiry, $hashLevels, $url, $thumbUrl;
+ var $pathDisclosureProtection = 'simple'; // 'paranoid'
+ var $descriptionCacheExpiry, $url, $thumbUrl;
+ var $hashLevels, $deletedHashLevels;
/**
* Factory functions for creating new files
* Override these in the base class
*/
- var $fileFactory = false, $oldFileFactory = false;
+ var $fileFactory = array( 'UnregisteredLocalFile', 'newFromTitle' );
+ var $oldFileFactory = false;
var $fileFactoryKey = false, $oldFileFactoryKey = false;
- function __construct( $info ) {
+ /**
+ * @param $info array|null
+ * @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
- $this->initialCapital = MWNamespace::isCapitalized( NS_FILE );
- foreach ( array( 'descBaseUrl', 'scriptDirUrl', 'articleUrl', 'fetchDescription',
- 'thumbScriptUrl', 'initialCapital', 'pathDisclosureProtection',
- 'descriptionCacheExpiry', 'hashLevels', 'url', 'thumbUrl', 'scriptExtension' )
- as $var )
- {
+ // Optional settings that can have no value
+ $optionalSettings = array(
+ 'descBaseUrl', 'scriptDirUrl', 'articleUrl', 'fetchDescription',
+ 'thumbScriptUrl', 'pathDisclosureProtection', 'descriptionCacheExpiry',
+ 'scriptExtension'
+ );
+ 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']
+ : MWNamespace::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->zones = isset( $info['zones'] )
+ ? $info['zones']
+ : array();
+ // Give defaults for the basic zones...
+ foreach ( array( 'public', 'thumb', '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'] = '';
+ }
+ }
+ }
+
+ /**
+ * 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|bool 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 $doZones Array Only do a particular zones
+ * @throws MWException
+ * @return Status
+ */
+ protected function initZones( $doZones = array() ) {
+ $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;
+ }
+
+ /**
+ * Take all available measures to prevent web accessibility of new deleted
+ * directories, in case the user has not configured offline storage
+ *
+ * @param $dir string
+ * @return void
+ */
+ protected function initDeletedDir( $dir ) {
+ $this->backend->secure( // prevent web access & dir listings
+ array( 'dir' => $dir, 'noAccess' => true, 'noListing' => true ) );
}
/**
* Determine if a string is an mwrepo:// URL
+ *
+ * @param $url string
+ * @return bool
*/
- static function isVirtualUrl( $url ) {
+ 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 $suffix string|bool
+ * @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 $zone String: one of: public, deleted, temp, thumb
+ * @return String or false
+ */
+ public function getZoneUrl( $zone ) {
+ if ( isset( $this->zones[$zone]['url'] )
+ && in_array( $zone, array( 'public', 'temp', 'thumb' ) ) )
+ {
+ return $this->zones[$zone]['url']; // custom URL
+ }
+ switch ( $zone ) {
+ case 'public':
+ return $this->url;
+ case 'temp':
+ return "{$this->url}/temp";
+ case 'deleted':
+ return false; // no public URL
+ case 'thumb':
+ return $this->thumbUrl;
+ default:
+ return false;
+ }
+ }
+
+ /**
+ * Get the backend storage path corresponding to a virtual URL.
+ * Use this function wisely.
+ *
+ * @param $url string
+ * @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" );
+ }
+ $base = $this->getZonePath( $zone );
+ if ( !$base ) {
+ throw new MWException( __METHOD__.": invalid zone: $zone" );
+ }
+ return $base . '/' . rawurldecode( $rel );
+ }
+
+ /**
+ * The the storage container and base path of a zone
+ *
+ * @param $zone string
+ * @return Array (container, base path) or (null, null)
+ */
+ protected function getZoneLocation( $zone ) {
+ if ( !isset( $this->zones[$zone] ) ) {
+ return array( null, null ); // bogus
+ }
+ return array( $this->zones[$zone]['container'], $this->zones[$zone]['directory'] );
+ }
+
+ /**
+ * Get the storage path corresponding to one of the zones
+ *
+ * @param $zone string
+ * @return string|null Returns null if the zone is not defined
+ */
+ public function getZonePath( $zone ) {
+ list( $container, $base ) = $this->getZoneLocation( $zone );
+ if ( $container === null || $base === null ) {
+ return null;
+ }
+ $backendName = $this->backend->getName();
+ if ( $base != '' ) { // may not be set
+ $base = "/{$base}";
+ }
+ return "mwstore://$backendName/{$container}{$base}";
+ }
+
/**
* Create a new File object from the local repository
*
* 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
+ * @return File|null A File, or null if passed an invalid Title
*/
- function newFile( $title, $time = false ) {
- if ( !($title instanceof Title) ) {
- $title = Title::makeTitleSafe( NS_FILE, $title );
- if ( !is_object( $title ) ) {
- return null;
- }
+ public function newFile( $title, $time = false ) {
+ $title = File::normalizeTitle( $title );
+ if ( !$title ) {
+ return null;
}
if ( $time ) {
if ( $this->oldFileFactory ) {
* version control should return false if the time is specified.
*
* @param $title Mixed: Title object or string
- * @param $options Associative array of options:
- * time: requested time for an archived image, or false for the
+ * @param $options array 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.
+ * 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.
+ * @return File|bool False on failure
*/
- function findFile( $title, $options = array() ) {
- if ( !is_array( $options ) ) {
- // MW 1.15 compat
- $time = $options;
- } else {
- $time = isset( $options['time'] ) ? $options['time'] : false;
- }
- if ( !($title instanceof Title) ) {
- $title = Title::makeTitleSafe( NS_FILE, $title );
- if ( !is_object( $title ) ) {
- return false;
- }
+ public function findFile( $title, $options = array() ) {
+ $title = File::normalizeTitle( $title );
+ if ( !$title ) {
+ return false;
}
+ $time = isset( $options['time'] ) ? $options['time'] : false;
# First try the current version of the file to see if it precedes the timestamp
$img = $this->newFile( $title );
if ( !$img ) {
if ( $time !== false ) {
$img = $this->newFile( $title, $time );
if ( $img && $img->exists() ) {
- if ( !$img->isDeleted(File::DELETED_FILE) ) {
- return $img;
- } else if ( !empty( $options['private'] ) && $img->userCan(File::DELETED_FILE) ) {
+ if ( !$img->isDeleted( File::DELETED_FILE ) ) {
+ return $img; // always OK
+ } elseif ( !empty( $options['private'] ) && $img->userCan( File::DELETED_FILE ) ) {
return $img;
}
}
return false;
}
$redir = $this->checkRedirect( $title );
- if( $redir && $title->getNamespace() == NS_FILE) {
+ if ( $redir && $title->getNamespace() == NS_FILE) {
$img = $this->newFile( $redir );
- if( !$img ) {
+ if ( !$img ) {
return false;
}
- if( $img->exists() ) {
+ if ( $img->exists() ) {
$img->redirectedFrom( $title->getDBkey() );
return $img;
}
return false;
}
- /*
+ /**
* Find many files at once.
- * @param $items An array of titles, or an array of findFile() options with
+ *
+ * @param $items array An array of titles, or an array of findFile() options with
* the "title" option giving the title. Example:
*
* $findItem = array( 'title' => $title, 'private' => true );
* $findBatch = array( $findItem );
* $repo->findFiles( $findBatch );
+ * @return array
*/
- function findFiles( $items ) {
+ public function findFiles( array $items ) {
$result = array();
foreach ( $items as $item ) {
if ( is_array( $item ) ) {
return $result;
}
- /**
- * Create a new File object from the local repository
- * @param $sha1 Mixed: SHA-1 key
- * @param $time Mixed: time at which the image was uploaded.
- * If this is specified, the returned object will be an
- * 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
- */
- function newFileFromKey( $sha1, $time = false ) {
- if ( $time ) {
- if ( $this->oldFileFactoryKey ) {
- return call_user_func( $this->oldFileFactoryKey, $sha1, $this, $time );
- } else {
- return false;
- }
- } else {
- return call_user_func( $this->fileFactoryKey, $sha1, $this );
- }
- }
-
/**
* 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 $sha1 String
- * @param $options Option array, same as findFile().
+ * @param $sha1 String base 36 SHA-1 hash
+ * @param $options array Option array, same as findFile().
+ * @return File|bool False on failure
*/
- function findFileFromKey( $sha1, $options = array() ) {
- if ( !is_array( $options ) ) {
- # MW 1.15 compat
- $time = $options;
+ public function findFileFromKey( $sha1, $options = array() ) {
+ $time = isset( $options['time'] ) ? $options['time'] : false;
+ # First try to find a matching current version of a file...
+ if ( $this->fileFactoryKey ) {
+ $img = call_user_func( $this->fileFactoryKey, $sha1, $this, $time );
} else {
- $time = isset( $options['time'] ) ? $options['time'] : false;
+ return false; // find-by-sha1 not supported
}
-
- # First try the current version of the file to see if it precedes the timestamp
- $img = $this->newFileFromKey( $sha1 );
- if ( !$img ) {
- return false;
- }
- if ( $img->exists() && ( !$time || $img->getTimestamp() == $time ) ) {
+ if ( $img && $img->exists() ) {
return $img;
}
- # Now try an old version of the file
- if ( $time !== false ) {
- $img = $this->newFileFromKey( $sha1, $time );
- if ( $img->exists() ) {
- if ( !$img->isDeleted(File::DELETED_FILE) ) {
- return $img;
- } else if ( !empty( $options['private'] ) && $img->userCan(File::DELETED_FILE) ) {
+ # 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 ) ) {
return $img;
}
}
}
/**
- * Get the URL of thumb.php
+ * Get an array or iterator of file objects for files that have a given
+ * SHA-1 content hash.
+ *
+ * STUB
+ * @param $hash
+ * @return array
*/
- function getThumbScriptUrl() {
- return $this->thumbScriptUrl;
+ public function findBySha1( $hash ) {
+ return array();
}
/**
- * Get the URL corresponding to one of the four basic zones
- * @param $zone String: one of: public, deleted, temp, thumb
- * @return String or false
+ * Get the public root URL of the repository
+ *
+ * @deprecated since 1.20
+ * @return string
*/
- function getZoneUrl( $zone ) {
- return false;
+ public function getRootUrl() {
+ return $this->getZoneUrl( 'public' );
+ }
+
+ /**
+ * 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 bool
*/
- function canTransformVia404() {
+ public function canTransformVia404() {
return $this->transformVia404;
}
/**
* Get the name of an image from its title object
+ *
* @param $title Title
+ * @return String
*/
- function getNameFromTitle( $title ) {
+ public function getNameFromTitle( Title $title ) {
+ global $wgContLang;
if ( $this->initialCapital != MWNamespace::isCapitalized( NS_FILE ) ) {
- global $wgContLang;
$name = $title->getUserCaseDBKey();
if ( $this->initialCapital ) {
$name = $wgContLang->ucfirst( $name );
return $name;
}
- static function getHashPathForLevel( $name, $levels ) {
+ /**
+ * 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 $name string 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 $suffix string 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 $name
+ * @param $levels
+ * @return string
+ */
+ protected static function getHashPathForLevel( $name, $levels ) {
if ( $levels == 0 ) {
return '';
} else {
}
/**
- * Get a relative path including trailing slash, e.g. f/fa/
- * If the repo is not hashed, returns an empty string
+ * Get the number of hash directory levels
+ *
+ * @return integer
*/
- function getHashPath( $name ) {
- return self::getHashPathForLevel( $name, $this->hashLevels );
+ public function getHashLevels() {
+ return $this->hashLevels;
}
/**
* Get the name of this repository, as specified by $info['name]' to the constructor
+ *
+ * @return string
*/
- function getName() {
+ public function getName() {
return $this->name;
}
-
+
/**
* Make an url to this repo
- *
+ *
* @param $query mixed Query string to append
* @param $entry string Entry point; defaults to index
- * @return string
+ * @return string|bool False on failure
*/
- function makeUrl( $query = '', $entry = 'index' ) {
- $ext = isset( $this->scriptExtension ) ? $this->scriptExtension : '.php';
- return wfAppendQuery( "{$this->scriptDirUrl}/{$entry}{$ext}", $query );
- }
+ 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
*
* In particular, it uses the article paths as specified to the repository
* constructor, whereas local repositories use the local Title functions.
+ *
+ * @param $name string
+ * @return string
*/
- function getDescriptionUrl( $name ) {
+ public function getDescriptionUrl( $name ) {
$encName = wfUrlencode( $name );
if ( !is_null( $this->descBaseUrl ) ) {
# "http://example.com/wiki/Image:"
* 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 $name String: name of image to fetch
* @param $lang String: language to fetch it in, if any.
+ * @return string
*/
- function getDescriptionRenderUrl( $name, $lang = null ) {
+ public function getDescriptionRenderUrl( $name, $lang = null ) {
$query = 'action=render';
if ( !is_null( $lang ) ) {
$query .= '&uselang=' . $lang;
}
if ( isset( $this->scriptDirUrl ) ) {
- return $this->makeUrl(
+ return $this->makeUrl(
'title=' .
wfUrlencode( 'Image:' . $name ) .
"&$query" );
}
}
}
-
+
/**
* Get the URL of the stylesheet to apply to description pages
- * @return string
+ *
+ * @return string|bool False on failure
*/
- function getDescriptionStylesheetUrl() {
- if ( $this->scriptDirUrl ) {
+ 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 $srcPath String: source path or virtual URL
+ * @param $srcPath String: source FS path, storage path, or virtual URL
* @param $dstZone String: destination zone
* @param $dstRel String: destination relative path
* @param $flags Integer: 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 FileRepoStatus
*/
- function store( $srcPath, $dstZone, $dstRel, $flags = 0 ) {
+ public function store( $srcPath, $dstZone, $dstRel, $flags = 0 ) {
+ $this->assertWritableRepo(); // fail out if read-only
+
$status = $this->storeBatch( array( array( $srcPath, $dstZone, $dstRel ) ), $flags );
if ( $status->successCount == 0 ) {
$status->ok = false;
}
+
return $status;
}
/**
* Store a batch of files
*
- * @param $triplets Array: (src,zone,dest) triplets as per store()
- * @param $flags Integer: flags as per store
+ * @param $triplets Array: (src, dest zone, dest rel) triplets as per store()
+ * @param $flags Integer: bitwise combination of the following flags:
+ * self::DELETE_SOURCE Delete the source file after upload
+ * 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 FileRepoStatus
+ */
+ public function storeBatch( array $triplets, $flags = 0 ) {
+ $this->assertWritableRepo(); // fail out if read-only
+
+ $status = $this->newGood();
+ $backend = $this->backend; // convenience
+
+ $operations = array();
+ $sourceFSFilesToDelete = array(); // cleanup for disk source files
+ // 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( $dstPath );
+ // Create destination directories for this triplet
+ if ( !$backend->prepare( array( 'dir' => $dstDir ) )->isOK() ) {
+ return $this->newFatal( 'directorycreateerror', $dstDir );
+ }
+
+ if ( $dstZone == 'deleted' ) {
+ $this->initDeletedDir( $dstDir );
+ }
+
+ // Resolve source to a storage path if virtual
+ $srcPath = $this->resolveToStoragePath( $srcPath );
+
+ // Get the appropriate file operation
+ if ( FileBackend::isStoragePath( $srcPath ) ) {
+ $opName = ( $flags & self::DELETE_SOURCE ) ? 'move' : 'copy';
+ } else {
+ $opName = 'store';
+ if ( $flags & self::DELETE_SOURCE ) {
+ $sourceFSFilesToDelete[] = $srcPath;
+ }
+ }
+ $operations[] = array(
+ 'op' => $opName,
+ 'src' => $srcPath,
+ 'dst' => $dstPath,
+ 'overwrite' => $flags & self::OVERWRITE,
+ 'overwriteSame' => $flags & self::OVERWRITE_SAME,
+ );
+ }
+
+ // Execute the store operation for each triplet
+ $opts = array( 'force' => true );
+ if ( $flags & self::SKIP_LOCKING ) {
+ $opts['nonLocking'] = true;
+ }
+ $status->merge( $backend->doOperations( $operations, $opts ) );
+ // Cleanup for disk source files...
+ foreach ( $sourceFSFilesToDelete as $file ) {
+ wfSuppressWarnings();
+ unlink( $file ); // FS cleanup
+ wfRestoreWarnings();
+ }
+
+ 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 $files array List of files to delete
+ * @param $flags Integer: bitwise combination of the following flags:
+ * self::SKIP_LOCKING Skip any file locking when doing the deletions
+ * @return FileRepoStatus
+ */
+ public function cleanupBatch( array $files, $flags = 0 ) {
+ $this->assertWritableRepo(); // fail out if read-only
+
+ $status = $this->newGood();
+
+ $operations = array();
+ 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[] = array( 'op' => 'delete', 'src' => $path );
+ }
+ // Actually delete files from storage...
+ $opts = array( '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 $src string File system path
+ * @param $dst string Virtual URL or storage path
+ * @return FileRepoStatus
+ */
+ final public function quickImport( $src, $dst ) {
+ return $this->quickImportBatch( array( array( $src, $dst ) ) );
+ }
+
+ /**
+ * 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 $path string Virtual URL or storage path
+ * @return FileRepoStatus
+ */
+ final public function quickPurge( $path ) {
+ return $this->quickPurgeBatch( array( $path ) );
+ }
+
+ /**
+ * Deletes a directory if empty.
+ * This function can be used to write to otherwise read-only foreign repos.
+ *
+ * @param $dir string Virtual URL (or storage path) of directory to clean
+ * @return Status
+ */
+ public function quickCleanDir( $dir ) {
+ $status = $this->newGood();
+ $status->merge( $this->backend->clean(
+ array( '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.
+ *
+ * @param $pairs Array List of tuples (file system path, virtual URL or storage path)
+ * @return FileRepoStatus
+ */
+ public function quickImportBatch( array $pairs ) {
+ $status = $this->newGood();
+ $operations = array();
+ foreach ( $pairs as $pair ) {
+ list ( $src, $dst ) = $pair;
+ $operations[] = array(
+ 'op' => 'store',
+ 'src' => $src,
+ 'dst' => $this->resolveToStoragePath( $dst )
+ );
+ $this->backend->prepare( array( 'dir' => 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 $paths Array List of virtual URLs or storage paths
+ * @return FileRepoStatus
*/
- abstract function storeBatch( $triplets, $flags = 0 );
+ public function quickPurgeBatch( array $paths ) {
+ $status = $this->newGood();
+ $operations = array();
+ foreach ( $paths as $path ) {
+ $operations[] = array(
+ '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 FileRepoStatus object with the URL in the value.
+ * Returns a FileRepoStatus object with the file Virtual URL in the value,
+ * file can later be disposed using FileRepo::freeTemp().
*
* @param $originalName String: the base name of the file as specified
* by the user. The file extension will be maintained.
* @param $srcPath String: the current location of the file.
+ * @return FileRepoStatus object with the URL in the value.
*/
- abstract function storeTemp( $originalName, $srcPath );
+ public function storeTemp( $originalName, $srcPath ) {
+ $this->assertWritableRepo(); // fail out if read-only
+
+ $date = gmdate( "YmdHis" );
+ $hashPath = $this->getHashPath( $originalName );
+ $dstRel = "{$hashPath}{$date}!{$originalName}";
+ $dstUrlRel = $hashPath . $date . '!' . rawurlencode( $originalName );
+ $result = $this->store( $srcPath, 'temp', $dstRel, self::SKIP_LOCKING );
+ $result->value = $this->getVirtualUrl( 'temp' ) . '/' . $dstUrlRel;
+
+ return $result;
+ }
/**
- * Append the contents of the source path to the given file.
- * @param $srcPath String: location of the source file
- * @param $toAppendPath String: path to append to.
- * @param $flags Integer: bitfield, may be FileRepo::DELETE_SOURCE to indicate
- * that the source file should be deleted if possible
- * @return mixed Status or false
+ * Concatenate a list of files into a target file location.
+ *
+ * @param $srcPaths Array Ordered list of source virtual URLs/storage paths
+ * @param $dstPath String Target file system path
+ * @param $flags Integer: bitwise combination of the following flags:
+ * self::DELETE_SOURCE Delete the source files
+ * @return FileRepoStatus
*/
- abstract function append( $srcPath, $toAppendPath, $flags = 0 );
+ public function concatenate( array $srcPaths, $dstPath, $flags = 0 ) {
+ $this->assertWritableRepo(); // fail out if read-only
+
+ $status = $this->newGood();
+
+ $sources = array();
+ $deleteOperations = array(); // post-concatenate ops
+ foreach ( $srcPaths as $srcPath ) {
+ // Resolve source to a storage path if virtual
+ $source = $this->resolveToStoragePath( $srcPath );
+ $sources[] = $source; // chunk to merge
+ if ( $flags & self::DELETE_SOURCE ) {
+ $deleteOperations[] = array( 'op' => 'delete', 'src' => $source );
+ }
+ }
+
+ // Concatenate the chunks into one FS file
+ $params = array( 'srcs' => $sources, 'dst' => $dstPath );
+ $status->merge( $this->backend->concatenate( $params ) );
+ if ( !$status->isOK() ) {
+ return $status;
+ }
+
+ // Delete the sources if required
+ if ( $deleteOperations ) {
+ $opts = array( 'force' => true );
+ $status->merge( $this->backend->doOperations( $deleteOperations, $opts ) );
+ }
+
+ // Make sure status is OK, despite any $deleteOperations fatals
+ $status->setResult( true );
+
+ return $status;
+ }
/**
* Remove a temporary file or mark it for garbage collection
- * @param $virtualUrl String: the virtual URL returned by storeTemp
+ *
+ * @param $virtualUrl String: the virtual URL returned by FileRepo::storeTemp()
* @return Boolean: true on success, false on failure
- * STUB
*/
- function freeTemp( $virtualUrl ) {
- return true;
+ public function freeTemp( $virtualUrl ) {
+ $this->assertWritableRepo(); // fail out if read-only
+
+ $temp = "mwrepo://{$this->name}/temp";
+ if ( substr( $virtualUrl, 0, strlen( $temp ) ) != $temp ) {
+ wfDebug( __METHOD__.": Invalid temp virtual URL\n" );
+ return false;
+ }
+ $path = $this->resolveVirtualUrl( $virtualUrl );
+
+ return $this->cleanupBatch( array( $path ), self::SKIP_LOCKING )->isOK();
}
/**
- * Copy or move a file either from the local filesystem or from an mwrepo://
- * virtual URL, into this repository at the specified destination location.
+ * Copy or move a file either from a storage path, virtual URL,
+ * or FS path, into this repository at the specified destination location.
*
* Returns a FileRepoStatus object. On success, the value contains "new" or
* "archived", to indicate whether the file was new with that name.
*
- * @param $srcPath String: the source path or URL
+ * @param $srcPath String: the source FS path, storage path, or URL
* @param $dstRel String: the destination relative path
- * @param $archiveRel String: rhe relative path where the existing file is to
+ * @param $archiveRel String: the relative path where the existing file is to
* be archived, if there is one. Relative to the public zone root.
* @param $flags Integer: bitfield, may be FileRepo::DELETE_SOURCE to indicate
* that the source file should be deleted if possible
+ * @return FileRepoStatus
*/
- function publish( $srcPath, $dstRel, $archiveRel, $flags = 0 ) {
+ public function publish( $srcPath, $dstRel, $archiveRel, $flags = 0 ) {
+ $this->assertWritableRepo(); // fail out if read-only
+
$status = $this->publishBatch( array( array( $srcPath, $dstRel, $archiveRel ) ), $flags );
if ( $status->successCount == 0 ) {
$status->ok = false;
} else {
$status->value = false;
}
+
return $status;
}
/**
* Publish a batch of files
- * @param $triplets Array: (source,dest,archive) triplets as per publish()
+ *
+ * @param $triplets Array: (source, dest, archive) triplets as per publish()
* @param $flags Integer: bitfield, may be FileRepo::DELETE_SOURCE to indicate
* that the source files should be deleted if possible
+ * @throws MWException
+ * @return FileRepoStatus
*/
- abstract function publishBatch( $triplets, $flags = 0 );
+ public function publishBatch( array $triplets, $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;
+ }
- function fileExists( $file, $flags = 0 ) {
- $result = $this->fileExistsBatch( array( $file ), $flags );
+ $status = $this->newGood( array() );
+
+ $operations = array();
+ $sourceFSFilesToDelete = array(); // cleanup for disk source files
+ // Validate each triplet and get the store operation...
+ foreach ( $triplets as $i => $triplet ) {
+ list( $srcPath, $dstRel, $archiveRel ) = $triplet;
+ // 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( $archivePath );
+ // Abort immediately on directory creation errors since they're likely to be repetitive
+ if ( !$backend->prepare( array( 'dir' => $dstDir ) )->isOK() ) {
+ return $this->newFatal( 'directorycreateerror', $dstDir );
+ }
+ if ( !$backend->prepare( array( 'dir' => $archiveDir ) )->isOK() ) {
+ return $this->newFatal( 'directorycreateerror', $archiveDir );
+ }
+
+ // Archive destination file if it exists
+ if ( $backend->fileExists( array( 'src' => $dstPath ) ) ) {
+ // Check if the archive file exists
+ // This is a sanity check to avoid data loss. In UNIX, the rename primitive
+ // unlinks the destination file if it exists. DB-based synchronisation in
+ // publishBatch's caller should prevent races. In Windows there's no
+ // problem because the rename primitive fails if the destination exists.
+ if ( $backend->fileExists( array( 'src' => $archivePath ) ) ) {
+ $operations[] = array( 'op' => 'null' );
+ continue;
+ } else {
+ $operations[] = array(
+ 'op' => 'move',
+ 'src' => $dstPath,
+ 'dst' => $archivePath
+ );
+ }
+ $status->value[$i] = 'archived';
+ } else {
+ $status->value[$i] = 'new';
+ }
+ // Copy (or move) the source file to the destination
+ if ( FileBackend::isStoragePath( $srcPath ) ) {
+ if ( $flags & self::DELETE_SOURCE ) {
+ $operations[] = array(
+ 'op' => 'move',
+ 'src' => $srcPath,
+ 'dst' => $dstPath
+ );
+ } else {
+ $operations[] = array(
+ 'op' => 'copy',
+ 'src' => $srcPath,
+ 'dst' => $dstPath
+ );
+ }
+ } else { // FS source path
+ $operations[] = array(
+ 'op' => 'store',
+ 'src' => $srcPath,
+ 'dst' => $dstPath
+ );
+ if ( $flags & self::DELETE_SOURCE ) {
+ $sourceFSFilesToDelete[] = $srcPath;
+ }
+ }
+ }
+
+ // Execute the operations for each triplet
+ $opts = array( 'force' => true );
+ $status->merge( $backend->doOperations( $operations, $opts ) );
+ // Cleanup for disk source files...
+ foreach ( $sourceFSFilesToDelete as $file ) {
+ wfSuppressWarnings();
+ unlink( $file ); // FS cleanup
+ wfRestoreWarnings();
+ }
+
+ return $status;
+ }
+
+ /**
+ * Deletes a directory if empty.
+ *
+ * @param $dir string 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(
+ array( 'dir' => $this->resolveToStoragePath( $dir ) ) ) );
+
+ return $status;
+ }
+
+ /**
+ * Checks existence of a a file
+ *
+ * @param $file string Virtual URL (or storage path) of file to check
+ * @return bool
+ */
+ public function fileExists( $file ) {
+ $result = $this->fileExistsBatch( array( $file ) );
return $result[0];
}
/**
* Checks existence of an array of files.
*
- * @param $files Array: URLs (or paths) of files to check
- * @param $flags Integer: bitwise combination of the following flags:
- * self::FILES_ONLY Mark file as existing only if it is a file (not directory)
- * @return Either array of files and existence flags, or false
+ * @param $files Array: Virtual URLs (or storage paths) of files to check
+ * @return array|bool Either array of files and existence flags, or false
*/
- abstract function fileExistsBatch( $files, $flags = 0 );
+ public function fileExistsBatch( array $files ) {
+ $result = array();
+ foreach ( $files as $key => $file ) {
+ $file = $this->resolveToStoragePath( $file );
+ $result[$key] = $this->backend->fileExists( array( 'src' => $file ) );
+ }
+ 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 $srcRel Mixed: relative path for the file to be deleted
+ * @param $archiveRel Mixed: relative path for the archive location.
+ * Relative to a private archive directory.
+ * @return FileRepoStatus object
+ */
+ public function delete( $srcRel, $archiveRel ) {
+ $this->assertWritableRepo(); // fail out if read-only
+
+ return $this->deleteBatch( array( array( $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 FSRepo
+ * 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.
*
* 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 FileRepoStatus
*/
- abstract function deleteBatch( $sourceDestPairs );
+ public function deleteBatch( array $sourceDestPairs ) {
+ $this->assertWritableRepo(); // fail out if read-only
+
+ // Try creating directories
+ $status = $this->initZones( array( 'public', 'deleted' ) );
+ if ( !$status->isOK() ) {
+ return $status;
+ }
+
+ $status = $this->newGood();
+
+ $backend = $this->backend; // convenience
+ $operations = array();
+ // 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( $archivePath ); // does not touch FS
+
+ // Create destination directories
+ if ( !$backend->prepare( array( 'dir' => $archiveDir ) )->isOK() ) {
+ return $this->newFatal( 'directorycreateerror', $archiveDir );
+ }
+ $this->initDeletedDir( $archiveDir );
+
+ $operations[] = array(
+ '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 = array( '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
+ */
+ public function cleanupDeletedBatch( array $storageKeys ) {
+ $this->assertWritableRepo();
+ }
/**
- * 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 $srcRel Mixed: relative path for the file to be deleted
- * @param $archiveRel Mixed: relative path for the archive location.
- * Relative to a private archive directory.
- * @return FileRepoStatus object
+ * Get a relative path for a deletion archive key,
+ * e.g. s/z/a/ for sza251lrxrc1jad41h5mgilp8nysje52.jpg
+ *
+ * @param $key string
+ * @return string
*/
- function delete( $srcRel, $archiveRel ) {
- return $this->deleteBatch( array( array( $srcRel, $archiveRel ) ) );
+ public function getDeletedHashPath( $key ) {
+ $path = '';
+ for ( $i = 0; $i < $this->deletedHashLevels; $i++ ) {
+ $path .= $key[$i] . '/';
+ }
+ return $path;
}
/**
- * Get properties of a file with a given virtual URL
- * The virtual URL must refer to this repo
- * Properties should ultimately be obtained via File::getPropsFromPath()
+ * If a path is a virtual URL, resolve it to a storage path.
+ * Otherwise, just return the path as it is.
+ *
+ * @param $path string
+ * @return string
+ * @throws MWException
*/
- abstract function getFileProps( $virtualUrl );
+ protected function resolveToStoragePath( $path ) {
+ if ( $this->isVirtualUrl( $path ) ) {
+ return $this->resolveVirtualUrl( $path );
+ }
+ return $path;
+ }
/**
- * Call a callback function for every file in the repository
- * May use either the database or the filesystem
- * STUB
+ * 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 $virtualUrl string
+ * @return TempFSFile|null Returns null on failure
*/
- function enumFiles( $callback ) {
- throw new MWException( 'enumFiles is not supported by ' . get_class( $this ) );
+ public function getLocalCopy( $virtualUrl ) {
+ $path = $this->resolveToStoragePath( $virtualUrl );
+ return $this->backend->getLocalCopy( array( 'src' => $path ) );
}
/**
- * Determine if a relative path is valid, i.e. not blank or involving directory traveral
+ * 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 $virtualUrl string
+ * @return FSFile|null Returns null on failure.
*/
- function validateFilename( $filename ) {
- if ( strval( $filename ) == '' ) {
+ public function getLocalReference( $virtualUrl ) {
+ $path = $this->resolveToStoragePath( $virtualUrl );
+ return $this->backend->getLocalReference( array( 'src' => $path ) );
+ }
+
+ /**
+ * Get properties of a file with a given virtual URL/storage path.
+ * Properties should ultimately be obtained via FSFile::getProps().
+ *
+ * @param $virtualUrl string
+ * @return Array
+ */
+ public function getFileProps( $virtualUrl ) {
+ $path = $this->resolveToStoragePath( $virtualUrl );
+ return $this->backend->getFileProps( array( 'src' => $path ) );
+ }
+
+ /**
+ * Get the timestamp of a file with a given virtual URL/storage path
+ *
+ * @param $virtualUrl string
+ * @return string|bool False on failure
+ */
+ public function getFileTimestamp( $virtualUrl ) {
+ $path = $this->resolveToStoragePath( $virtualUrl );
+ return $this->backend->getFileTimestamp( array( 'src' => $path ) );
+ }
+
+ /**
+ * Get the sha1 of a file with a given virtual URL/storage path
+ *
+ * @param $virtualUrl string
+ * @return string|bool
+ */
+ public function getFileSha1( $virtualUrl ) {
+ $path = $this->resolveToStoragePath( $virtualUrl );
+ $tmpFile = $this->backend->getLocalReference( array( 'src' => $path ) );
+ if ( !$tmpFile ) {
return false;
}
- if ( wfIsWindows() ) {
- $filename = strtr( $filename, '\\', '/' );
- }
- /**
- * Use the same traversal protection as Title::secureAndSplit()
- */
- if ( strpos( $filename, '.' ) !== false &&
- ( $filename === '.' || $filename === '..' ||
- strpos( $filename, './' ) === 0 ||
- strpos( $filename, '../' ) === 0 ||
- strpos( $filename, '/./' ) !== false ||
- strpos( $filename, '/../' ) !== false ) )
- {
- return false;
- } else {
- return true;
+ return $tmpFile->getSha1Base36();
+ }
+
+ /**
+ * Attempt to stream a file with the given virtual URL/storage path
+ *
+ * @param $virtualUrl string
+ * @param $headers Array Additional HTTP headers to send on success
+ * @return bool Success
+ */
+ public function streamFile( $virtualUrl, $headers = array() ) {
+ $path = $this->resolveToStoragePath( $virtualUrl );
+ $params = array( 'src' => $path, 'headers' => $headers );
+ return $this->backend->streamFile( $params )->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 $callback Array|string
+ * @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 $callback Array|string
+ * @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( array( 'dir' => $path ) );
+ foreach ( $iterator as $name ) {
+ // Each item returned is a public file
+ call_user_func( $callback, "{$path}/{$name}" );
+ }
}
}
- /**#@+
- * Path disclosure protection functions
+ /**
+ * Determine if a relative path is valid, i.e. not blank or involving directory traveral
+ *
+ * @param $filename string
+ * @return bool
*/
- function paranoidClean( $param ) { return '[hidden]'; }
- function passThrough( $param ) { return $param; }
+ 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 = array( $this, 'passThrough' );
break;
default: // 'paranoid'
}
return $callback;
}
- /**#@-*/
+
+ /**
+ * Path disclosure protection function
+ *
+ * @param $param string
+ * @return string
+ */
+ function paranoidClean( $param ) {
+ return '[hidden]';
+ }
+
+ /**
+ * Path disclosure protection function
+ *
+ * @param $param string
+ * @return string
+ */
+ function passThrough( $param ) {
+ return $param;
+ }
/**
* Create a new fatal error
+ *
+ * @return FileRepoStatus
*/
- function newFatal( $message /*, parameters...*/ ) {
+ public function newFatal( $message /*, parameters...*/ ) {
$params = func_get_args();
array_unshift( $params, $this );
- return call_user_func_array( array( 'FileRepoStatus', 'newFatal' ), $params );
+ return MWInit::callStaticMethod( 'FileRepoStatus', 'newFatal', $params );
}
/**
* Create a new good result
+ *
+ * @param $value null|string
+ * @return FileRepoStatus
*/
- function newGood( $value = null ) {
+ public function newGood( $value = null ) {
return FileRepoStatus::newGood( $this, $value );
}
- /**
- * Delete files in the deleted directory if they are not referenced in the filearchive table
- * STUB
- */
- function cleanupDeletedBatch( $storageKeys ) {}
-
/**
* Checks if there is a redirect named as $title. If there is, return the
* title object. If not, return false.
* @param $title Title of image
* @return Bool
*/
- function checkRedirect( $title ) {
+ public function checkRedirect( Title $title ) {
return false;
}
* STUB
* @param $title Title of image
*/
- function invalidateImageRedirect( $title ) {}
+ public function invalidateImageRedirect( Title $title ) {}
/**
- * Get an array or iterator of file objects for files that have a given
- * SHA-1 content hash.
+ * Get the human-readable name of the repo
*
- * STUB
- */
- function findBySha1( $hash ) {
- return array();
- }
-
- /**
- * Get the human-readable name of the repo.
* @return string
*/
public function getDisplayName() {
*
* @return bool
*/
- function isLocal() {
+ 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 bool
*/
- function getSharedCacheKey( /*...*/ ) {
+ 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
*/
- function getLocalCacheKey( /*...*/ ) {
+ public function getLocalCacheKey( /*...*/ ) {
$args = func_get_args();
array_unshift( $args, 'filerepo', $this->getName() );
return call_user_func_array( 'wfMemcKey', $args );
}
-
+
+ /**
+ * Get an temporary FileRepo associated with this repo.
+ * Files will be created in the temp zone of this repo and
+ * thumbnails in a /temp subdirectory in thumb zone of this repo.
+ * It will have the same backend as this repo.
+ *
+ * @return TempFileRepo
+ */
+ public function getTempRepo() {
+ return new TempFileRepo( array(
+ 'name' => "{$this->name}-temp",
+ 'backend' => $this->backend,
+ 'zones' => array(
+ 'public' => array(
+ 'container' => $this->zones['temp']['container'],
+ 'directory' => $this->zones['temp']['directory']
+ ),
+ 'thumb' => array(
+ 'container' => $this->zones['thumb']['container'],
+ 'directory' => ( $this->zones['thumb']['directory'] == '' )
+ ? 'temp'
+ : $this->zones['thumb']['directory'] . '/temp'
+ )
+ ),
+ 'url' => $this->getZoneUrl( 'temp' ),
+ 'thumbUrl' => $this->getZoneUrl( 'thumb' ) . '/temp',
+ 'hashLevels' => $this->hashLevels // performance
+ ) );
+ }
+
/**
* Get an UploadStash associated with this repo.
+ *
+ * @return UploadStash
*/
- function getUploadStash() {
+ public function getUploadStash() {
return new UploadStash( $this );
}
+
+ /**
+ * 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() {}
+}
+
+/**
+ * FileRepo for temporary files created via FileRepo::getTempRepo()
+ */
+class TempFileRepo extends FileRepo {
+ public function getTempRepo() {
+ throw new MWException( "Cannot get a temp repo from a temp repo." );
+ }
}
dépôts / lhc / web / wiklou.git / blobdiff