3 * Local file in the wiki's own database.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
21 * @ingroup FileAbstraction
25 * Bump this number when serialized cache records may be incompatible.
27 define( 'MW_FILE_VERSION', 9 );
30 * Class to represent a local file in the wiki's own database
32 * Provides methods to retrieve paths (physical, logical, URL),
33 * to generate image thumbnails or for uploading.
35 * Note that only the repo object knows what its file class is called. You should
36 * never name a file class explictly outside of the repo class. Instead use the
37 * repo's factory functions to generate file objects, for example:
39 * RepoGroup::singleton()->getLocalRepo()->newFile( $title );
41 * The convenience functions wfLocalFile() and wfFindFile() should be sufficient
44 * @ingroup FileAbstraction
46 class LocalFile
extends File
{
47 const CACHE_FIELD_MAX_LEN
= 1000;
49 /** @var bool Does the file exist on disk? (loadFromXxx) */
50 protected $fileExists;
52 /** @var int image width */
55 /** @var int image height */
58 /** @var int Returned by getimagesize (loadFromXxx) */
61 /** @var string MEDIATYPE_xxx (bitmap, drawing, audio...) */
62 protected $media_type;
64 /** @var string MIME type, determined by MimeMagic::guessMimeType */
67 /** @var int Size in bytes (loadFromXxx) */
70 /** @var string Handler-specific metadata */
73 /** @var string SHA-1 base 36 content hash */
76 /** @var bool Whether or not core data has been loaded from the database (loadFromXxx) */
77 protected $dataLoaded;
79 /** @var bool Whether or not lazy-loaded data has been loaded from the database */
80 protected $extraDataLoaded;
82 /** @var int Bitfield akin to rev_deleted */
86 protected $repoClass = 'LocalRepo';
88 /** @var int Number of line to return by nextHistoryLine() (constructor) */
91 /** @var int Result of the query for the file's history (nextHistoryLine) */
94 /** @var string Major mime type */
97 /** @var string Minor mime type */
100 /** @var string Upload timestamp */
103 /** @var int User ID of uploader */
106 /** @var string User name of uploader */
109 /** @var string Description of current revision of the file */
110 private $description;
112 /** @var bool Whether the row was upgraded on load */
115 /** @var bool True if the image row is locked */
118 /** @var bool True if the image row is locked with a lock initiated transaction */
119 private $lockedOwnTrx;
121 /** @var bool True if file is not present in file system. Not to be cached in memcached */
124 /** @var int UNIX timestamp of last markVolatile() call */
125 private $lastMarkedVolatile = 0;
127 const LOAD_ALL
= 1; // integer; load all the lazy fields too (like metadata)
128 const LOAD_VIA_SLAVE
= 2; // integer; use a slave to load the data
130 const VOLATILE_TTL
= 300; // integer; seconds
133 * Create a LocalFile from a title
134 * Do not call this except from inside a repo class.
136 * Note: $unused param is only here to avoid an E_STRICT
138 * @param Title $title
139 * @param FileRepo $repo
140 * @param null $unused
144 static function newFromTitle( $title, $repo, $unused = null ) {
145 return new self( $title, $repo );
149 * Create a LocalFile from a title
150 * Do not call this except from inside a repo class.
152 * @param stdClass $row
153 * @param FileRepo $repo
157 static function newFromRow( $row, $repo ) {
158 $title = Title
::makeTitle( NS_FILE
, $row->img_name
);
159 $file = new self( $title, $repo );
160 $file->loadFromRow( $row );
166 * Create a LocalFile from a SHA-1 key
167 * Do not call this except from inside a repo class.
169 * @param string $sha1 base-36 SHA-1
170 * @param LocalRepo $repo
171 * @param string|bool $timestamp MW_timestamp (optional)
172 * @return bool|LocalFile
174 static function newFromKey( $sha1, $repo, $timestamp = false ) {
175 $dbr = $repo->getSlaveDB();
177 $conds = array( 'img_sha1' => $sha1 );
179 $conds['img_timestamp'] = $dbr->timestamp( $timestamp );
182 $row = $dbr->selectRow( 'image', self
::selectFields(), $conds, __METHOD__
);
184 return self
::newFromRow( $row, $repo );
191 * Fields in the image table
194 static function selectFields() {
215 * Do not call this except from inside a repo class.
216 * @param Title $title
217 * @param FileRepo $repo
219 function __construct( $title, $repo ) {
220 parent
::__construct( $title, $repo );
222 $this->metadata
= '';
223 $this->historyLine
= 0;
224 $this->historyRes
= null;
225 $this->dataLoaded
= false;
226 $this->extraDataLoaded
= false;
228 $this->assertRepoDefined();
229 $this->assertTitleDefined();
233 * Get the memcached key for the main data for this file, or false if
234 * there is no access to the shared cache.
235 * @return string|bool
237 function getCacheKey() {
238 $hashedName = md5( $this->getName() );
240 return $this->repo
->getSharedCacheKey( 'file', $hashedName );
244 * Try to load file metadata from memcached. Returns true on success.
247 function loadFromCache() {
250 wfProfileIn( __METHOD__
);
251 $this->dataLoaded
= false;
252 $this->extraDataLoaded
= false;
253 $key = $this->getCacheKey();
256 wfProfileOut( __METHOD__
);
261 $cachedValues = $wgMemc->get( $key );
263 // Check if the key existed and belongs to this version of MediaWiki
264 if ( isset( $cachedValues['version'] ) && $cachedValues['version'] == MW_FILE_VERSION
) {
265 wfDebug( "Pulling file metadata from cache key $key\n" );
266 $this->fileExists
= $cachedValues['fileExists'];
267 if ( $this->fileExists
) {
268 $this->setProps( $cachedValues );
270 $this->dataLoaded
= true;
271 $this->extraDataLoaded
= true;
272 foreach ( $this->getLazyCacheFields( '' ) as $field ) {
273 $this->extraDataLoaded
= $this->extraDataLoaded
&& isset( $cachedValues[$field] );
277 if ( $this->dataLoaded
) {
278 wfIncrStats( 'image_cache_hit' );
280 wfIncrStats( 'image_cache_miss' );
283 wfProfileOut( __METHOD__
);
285 return $this->dataLoaded
;
289 * Save the file metadata to memcached
291 function saveToCache() {
295 $key = $this->getCacheKey();
301 $fields = $this->getCacheFields( '' );
302 $cache = array( 'version' => MW_FILE_VERSION
);
303 $cache['fileExists'] = $this->fileExists
;
305 if ( $this->fileExists
) {
306 foreach ( $fields as $field ) {
307 $cache[$field] = $this->$field;
311 // Strip off excessive entries from the subset of fields that can become large.
312 // If the cache value gets to large it will not fit in memcached and nothing will
313 // get cached at all, causing master queries for any file access.
314 foreach ( $this->getLazyCacheFields( '' ) as $field ) {
315 if ( isset( $cache[$field] ) && strlen( $cache[$field] ) > 100 * 1024 ) {
316 unset( $cache[$field] ); // don't let the value get too big
320 // Cache presence for 1 week and negatives for 1 day
321 $wgMemc->set( $key, $cache, $this->fileExists ?
86400 * 7 : 86400 );
325 * Load metadata from the file itself
327 function loadFromFile() {
328 $props = $this->repo
->getFileProps( $this->getVirtualUrl() );
329 $this->setProps( $props );
333 * @param string $prefix
336 function getCacheFields( $prefix = 'img_' ) {
337 static $fields = array( 'size', 'width', 'height', 'bits', 'media_type',
338 'major_mime', 'minor_mime', 'metadata', 'timestamp', 'sha1', 'user',
339 'user_text', 'description' );
340 static $results = array();
342 if ( $prefix == '' ) {
346 if ( !isset( $results[$prefix] ) ) {
347 $prefixedFields = array();
348 foreach ( $fields as $field ) {
349 $prefixedFields[] = $prefix . $field;
351 $results[$prefix] = $prefixedFields;
354 return $results[$prefix];
358 * @param string $prefix
361 function getLazyCacheFields( $prefix = 'img_' ) {
362 static $fields = array( 'metadata' );
363 static $results = array();
365 if ( $prefix == '' ) {
369 if ( !isset( $results[$prefix] ) ) {
370 $prefixedFields = array();
371 foreach ( $fields as $field ) {
372 $prefixedFields[] = $prefix . $field;
374 $results[$prefix] = $prefixedFields;
377 return $results[$prefix];
381 * Load file metadata from the DB
383 function loadFromDB( $flags = 0 ) {
384 # Polymorphic function name to distinguish foreign and local fetches
385 $fname = get_class( $this ) . '::' . __FUNCTION__
;
386 wfProfileIn( $fname );
388 # Unconditionally set loaded=true, we don't want the accessors constantly rechecking
389 $this->dataLoaded
= true;
390 $this->extraDataLoaded
= true;
392 $dbr = ( $flags & self
::LOAD_VIA_SLAVE
)
393 ?
$this->repo
->getSlaveDB()
394 : $this->repo
->getMasterDB();
396 $row = $dbr->selectRow( 'image', $this->getCacheFields( 'img_' ),
397 array( 'img_name' => $this->getName() ), $fname );
400 $this->loadFromRow( $row );
402 $this->fileExists
= false;
405 wfProfileOut( $fname );
409 * Load lazy file metadata from the DB.
410 * This covers fields that are sometimes not cached.
412 protected function loadExtraFromDB() {
413 # Polymorphic function name to distinguish foreign and local fetches
414 $fname = get_class( $this ) . '::' . __FUNCTION__
;
415 wfProfileIn( $fname );
417 # Unconditionally set loaded=true, we don't want the accessors constantly rechecking
418 $this->extraDataLoaded
= true;
420 $fieldMap = $this->loadFieldsWithTimestamp( $this->repo
->getSlaveDB(), $fname );
422 $fieldMap = $this->loadFieldsWithTimestamp( $this->repo
->getMasterDB(), $fname );
426 foreach ( $fieldMap as $name => $value ) {
427 $this->$name = $value;
430 wfProfileOut( $fname );
431 throw new MWException( "Could not find data for image '{$this->getName()}'." );
434 wfProfileOut( $fname );
438 * @param DatabaseBase $dbr
439 * @param string $fname
440 * @return array|false
442 private function loadFieldsWithTimestamp( $dbr, $fname ) {
445 $row = $dbr->selectRow( 'image', $this->getLazyCacheFields( 'img_' ),
446 array( 'img_name' => $this->getName(), 'img_timestamp' => $this->getTimestamp() ),
449 $fieldMap = $this->unprefixRow( $row, 'img_' );
451 # File may have been uploaded over in the meantime; check the old versions
452 $row = $dbr->selectRow( 'oldimage', $this->getLazyCacheFields( 'oi_' ),
453 array( 'oi_name' => $this->getName(), 'oi_timestamp' => $this->getTimestamp() ),
456 $fieldMap = $this->unprefixRow( $row, 'oi_' );
464 * @param array $row Row
465 * @param string $prefix
466 * @throws MWException
469 protected function unprefixRow( $row, $prefix = 'img_' ) {
470 $array = (array)$row;
471 $prefixLength = strlen( $prefix );
473 // Sanity check prefix once
474 if ( substr( key( $array ), 0, $prefixLength ) !== $prefix ) {
475 throw new MWException( __METHOD__
. ': incorrect $prefix parameter' );
479 foreach ( $array as $name => $value ) {
480 $decoded[substr( $name, $prefixLength )] = $value;
487 * Decode a row from the database (either object or array) to an array
488 * with timestamps and MIME types decoded, and the field prefix removed.
490 * @param string $prefix
491 * @throws MWException
494 function decodeRow( $row, $prefix = 'img_' ) {
495 $decoded = $this->unprefixRow( $row, $prefix );
497 $decoded['timestamp'] = wfTimestamp( TS_MW
, $decoded['timestamp'] );
499 if ( empty( $decoded['major_mime'] ) ) {
500 $decoded['mime'] = 'unknown/unknown';
502 if ( !$decoded['minor_mime'] ) {
503 $decoded['minor_mime'] = 'unknown';
505 $decoded['mime'] = $decoded['major_mime'] . '/' . $decoded['minor_mime'];
508 # Trim zero padding from char/binary field
509 $decoded['sha1'] = rtrim( $decoded['sha1'], "\0" );
515 * Load file metadata from a DB result row
518 * @param string $prefix
520 function loadFromRow( $row, $prefix = 'img_' ) {
521 $this->dataLoaded
= true;
522 $this->extraDataLoaded
= true;
524 $array = $this->decodeRow( $row, $prefix );
526 foreach ( $array as $name => $value ) {
527 $this->$name = $value;
530 $this->fileExists
= true;
531 $this->maybeUpgradeRow();
535 * Load file metadata from cache or DB, unless already loaded
538 function load( $flags = 0 ) {
539 if ( !$this->dataLoaded
) {
540 if ( !$this->loadFromCache() ) {
541 $this->loadFromDB( $this->isVolatile() ?
0 : self
::LOAD_VIA_SLAVE
);
542 $this->saveToCache();
544 $this->dataLoaded
= true;
546 if ( ( $flags & self
::LOAD_ALL
) && !$this->extraDataLoaded
) {
547 $this->loadExtraFromDB();
552 * Upgrade a row if it needs it
554 function maybeUpgradeRow() {
555 global $wgUpdateCompatibleMetadata;
556 if ( wfReadOnly() ) {
560 if ( is_null( $this->media_type
) ||
561 $this->mime
== 'image/svg'
564 $this->upgraded
= true;
566 $handler = $this->getHandler();
568 $validity = $handler->isMetadataValid( $this, $this->getMetadata() );
569 if ( $validity === MediaHandler
::METADATA_BAD
570 ||
( $validity === MediaHandler
::METADATA_COMPATIBLE
&& $wgUpdateCompatibleMetadata )
573 $this->upgraded
= true;
579 function getUpgraded() {
580 return $this->upgraded
;
584 * Fix assorted version-related problems with the image row by reloading it from the file
586 function upgradeRow() {
587 wfProfileIn( __METHOD__
);
589 $this->lock(); // begin
591 $this->loadFromFile();
593 # Don't destroy file info of missing files
594 if ( !$this->fileExists
) {
595 wfDebug( __METHOD__
. ": file does not exist, aborting\n" );
596 wfProfileOut( __METHOD__
);
601 $dbw = $this->repo
->getMasterDB();
602 list( $major, $minor ) = self
::splitMime( $this->mime
);
604 if ( wfReadOnly() ) {
605 wfProfileOut( __METHOD__
);
609 wfDebug( __METHOD__
. ': upgrading ' . $this->getName() . " to the current schema\n" );
611 $dbw->update( 'image',
613 'img_size' => $this->size
, // sanity
614 'img_width' => $this->width
,
615 'img_height' => $this->height
,
616 'img_bits' => $this->bits
,
617 'img_media_type' => $this->media_type
,
618 'img_major_mime' => $major,
619 'img_minor_mime' => $minor,
620 'img_metadata' => $dbw->encodeBlob( $this->metadata
),
621 'img_sha1' => $this->sha1
,
623 array( 'img_name' => $this->getName() ),
627 $this->saveToCache();
629 $this->unlock(); // done
631 wfProfileOut( __METHOD__
);
635 * Set properties in this object to be equal to those given in the
636 * associative array $info. Only cacheable fields can be set.
637 * All fields *must* be set in $info except for getLazyCacheFields().
639 * If 'mime' is given, it will be split into major_mime/minor_mime.
640 * If major_mime/minor_mime are given, $this->mime will also be set.
644 function setProps( $info ) {
645 $this->dataLoaded
= true;
646 $fields = $this->getCacheFields( '' );
647 $fields[] = 'fileExists';
649 foreach ( $fields as $field ) {
650 if ( isset( $info[$field] ) ) {
651 $this->$field = $info[$field];
655 // Fix up mime fields
656 if ( isset( $info['major_mime'] ) ) {
657 $this->mime
= "{$info['major_mime']}/{$info['minor_mime']}";
658 } elseif ( isset( $info['mime'] ) ) {
659 $this->mime
= $info['mime'];
660 list( $this->major_mime
, $this->minor_mime
) = self
::splitMime( $this->mime
);
664 /** splitMime inherited */
665 /** getName inherited */
666 /** getTitle inherited */
667 /** getURL inherited */
668 /** getViewURL inherited */
669 /** getPath inherited */
670 /** isVisible inhereted */
675 function isMissing() {
676 if ( $this->missing
=== null ) {
677 list( $fileExists ) = $this->repo
->fileExists( $this->getVirtualUrl() );
678 $this->missing
= !$fileExists;
681 return $this->missing
;
685 * Return the width of the image
690 public function getWidth( $page = 1 ) {
693 if ( $this->isMultipage() ) {
694 $handler = $this->getHandler();
698 $dim = $handler->getPageDimensions( $this, $page );
700 return $dim['width'];
702 // For non-paged media, the false goes through an
703 // intval, turning failure into 0, so do same here.
712 * Return the height of the image
717 public function getHeight( $page = 1 ) {
720 if ( $this->isMultipage() ) {
721 $handler = $this->getHandler();
725 $dim = $handler->getPageDimensions( $this, $page );
727 return $dim['height'];
729 // For non-paged media, the false goes through an
730 // intval, turning failure into 0, so do same here.
734 return $this->height
;
739 * Returns ID or name of user who uploaded the file
741 * @param string $type 'text' or 'id'
744 function getUser( $type = 'text' ) {
747 if ( $type == 'text' ) {
748 return $this->user_text
;
749 } elseif ( $type == 'id' ) {
755 * Get handler-specific metadata
758 function getMetadata() {
759 $this->load( self
::LOAD_ALL
); // large metadata is loaded in another step
760 return $this->metadata
;
766 function getBitDepth() {
773 * Returns the size of the image file, in bytes
776 public function getSize() {
783 * Returns the mime type of the file.
786 function getMimeType() {
793 * Returns the type of the media in the file.
794 * Use the value returned by this function with the MEDIATYPE_xxx constants.
797 function getMediaType() {
800 return $this->media_type
;
803 /** canRender inherited */
804 /** mustRender inherited */
805 /** allowInlineDisplay inherited */
806 /** isSafeFile inherited */
807 /** isTrustedFile inherited */
810 * Returns true if the file exists on disk.
811 * @return bool Whether file exist on disk.
813 public function exists() {
816 return $this->fileExists
;
819 /** getTransformScript inherited */
820 /** getUnscaledThumb inherited */
821 /** thumbName inherited */
822 /** createThumb inherited */
823 /** transform inherited */
826 * Fix thumbnail files from 1.4 or before, with extreme prejudice
827 * @todo Do we still care about this? Perhaps a maintenance script
828 * can be made instead. Enabling this code results in a serious
829 * RTT regression for wikis without 404 handling.
831 * @param string $thumbName
833 function migrateThumbFile( $thumbName ) {
834 /* Old code for bug 2532
835 $thumbDir = $this->getThumbPath();
836 $thumbPath = "$thumbDir/$thumbName";
837 if ( is_dir( $thumbPath ) ) {
838 // Directory where file should be
839 // This happened occasionally due to broken migration code in 1.5
840 // Rename to broken-*
841 for ( $i = 0; $i < 100; $i++ ) {
842 $broken = $this->repo->getZonePath( 'public' ) . "/broken-$i-$thumbName";
843 if ( !file_exists( $broken ) ) {
844 rename( $thumbPath, $broken );
848 // Doesn't exist anymore
853 if ( $this->repo->fileExists( $thumbDir ) ) {
854 // Delete file where directory should be
855 $this->repo->cleanupBatch( array( $thumbDir ) );
860 /** getHandler inherited */
861 /** iconThumb inherited */
862 /** getLastError inherited */
865 * Get all thumbnail names previously generated for this file
866 * @param string|bool $archiveName Name of an archive file, default false
867 * @return array first element is the base dir, then files in that base dir.
869 function getThumbnails( $archiveName = false ) {
870 if ( $archiveName ) {
871 $dir = $this->getArchiveThumbPath( $archiveName );
873 $dir = $this->getThumbPath();
876 $backend = $this->repo
->getBackend();
877 $files = array( $dir );
879 $iterator = $backend->getFileList( array( 'dir' => $dir ) );
880 foreach ( $iterator as $file ) {
883 } catch ( FileBackendError
$e ) {
884 } // suppress (bug 54674)
890 * Refresh metadata in memcached, but don't touch thumbnails or squid
892 function purgeMetadataCache() {
894 $this->saveToCache();
895 $this->purgeHistory();
899 * Purge the shared history (OldLocalFile) cache.
901 * @note This used to purge old thumbnails as well.
903 function purgeHistory() {
906 $hashedName = md5( $this->getName() );
907 $oldKey = $this->repo
->getSharedCacheKey( 'oldfile', $hashedName );
910 $wgMemc->delete( $oldKey );
915 * Delete all previously generated thumbnails, refresh metadata in memcached and purge the squid.
917 * @param array $options An array potentially with the key forThumbRefresh.
919 * @note This used to purge old thumbnails by default as well, but doesn't anymore.
921 function purgeCache( $options = array() ) {
922 wfProfileIn( __METHOD__
);
923 // Refresh metadata cache
924 $this->purgeMetadataCache();
927 $this->purgeThumbnails( $options );
929 // Purge squid cache for this file
930 SquidUpdate
::purge( array( $this->getURL() ) );
931 wfProfileOut( __METHOD__
);
935 * Delete cached transformed files for an archived version only.
936 * @param string $archiveName Name of the archived file
938 function purgeOldThumbnails( $archiveName ) {
940 wfProfileIn( __METHOD__
);
942 // Get a list of old thumbnails and URLs
943 $files = $this->getThumbnails( $archiveName );
945 // Purge any custom thumbnail caches
946 wfRunHooks( 'LocalFilePurgeThumbnails', array( $this, $archiveName ) );
948 $dir = array_shift( $files );
949 $this->purgeThumbList( $dir, $files );
954 foreach ( $files as $file ) {
955 $urls[] = $this->getArchiveThumbUrl( $archiveName, $file );
957 SquidUpdate
::purge( $urls );
960 wfProfileOut( __METHOD__
);
964 * Delete cached transformed files for the current version only.
966 function purgeThumbnails( $options = array() ) {
968 wfProfileIn( __METHOD__
);
971 $files = $this->getThumbnails();
972 // Always purge all files from squid regardless of handler filters
975 foreach ( $files as $file ) {
976 $urls[] = $this->getThumbUrl( $file );
978 array_shift( $urls ); // don't purge directory
981 // Give media handler a chance to filter the file purge list
982 if ( !empty( $options['forThumbRefresh'] ) ) {
983 $handler = $this->getHandler();
985 $handler->filterThumbnailPurgeList( $files, $options );
989 // Purge any custom thumbnail caches
990 wfRunHooks( 'LocalFilePurgeThumbnails', array( $this, false ) );
992 $dir = array_shift( $files );
993 $this->purgeThumbList( $dir, $files );
997 SquidUpdate
::purge( $urls );
1000 wfProfileOut( __METHOD__
);
1004 * Delete a list of thumbnails visible at urls
1005 * @param string $dir Base dir of the files.
1006 * @param array $files Array of strings: relative filenames (to $dir)
1008 protected function purgeThumbList( $dir, $files ) {
1009 $fileListDebug = strtr(
1010 var_export( $files, true ),
1013 wfDebug( __METHOD__
. ": $fileListDebug\n" );
1015 $purgeList = array();
1016 foreach ( $files as $file ) {
1017 # Check that the base file name is part of the thumb name
1018 # This is a basic sanity check to avoid erasing unrelated directories
1019 if ( strpos( $file, $this->getName() ) !== false
1020 ||
strpos( $file, "-thumbnail" ) !== false // "short" thumb name
1022 $purgeList[] = "{$dir}/{$file}";
1026 # Delete the thumbnails
1027 $this->repo
->quickPurgeBatch( $purgeList );
1028 # Clear out the thumbnail directory if empty
1029 $this->repo
->quickCleanDir( $dir );
1032 /** purgeDescription inherited */
1033 /** purgeEverything inherited */
1036 * @param int $limit Optional: Limit to number of results
1037 * @param int $start Optional: Timestamp, start from
1038 * @param int $end Optional: Timestamp, end at
1042 function getHistory( $limit = null, $start = null, $end = null, $inc = true ) {
1043 $dbr = $this->repo
->getSlaveDB();
1044 $tables = array( 'oldimage' );
1045 $fields = OldLocalFile
::selectFields();
1046 $conds = $opts = $join_conds = array();
1047 $eq = $inc ?
'=' : '';
1048 $conds[] = "oi_name = " . $dbr->addQuotes( $this->title
->getDBkey() );
1051 $conds[] = "oi_timestamp <$eq " . $dbr->addQuotes( $dbr->timestamp( $start ) );
1055 $conds[] = "oi_timestamp >$eq " . $dbr->addQuotes( $dbr->timestamp( $end ) );
1059 $opts['LIMIT'] = $limit;
1062 // Search backwards for time > x queries
1063 $order = ( !$start && $end !== null ) ?
'ASC' : 'DESC';
1064 $opts['ORDER BY'] = "oi_timestamp $order";
1065 $opts['USE INDEX'] = array( 'oldimage' => 'oi_name_timestamp' );
1067 wfRunHooks( 'LocalFile::getHistory', array( &$this, &$tables, &$fields,
1068 &$conds, &$opts, &$join_conds ) );
1070 $res = $dbr->select( $tables, $fields, $conds, __METHOD__
, $opts, $join_conds );
1073 foreach ( $res as $row ) {
1074 $r[] = $this->repo
->newFileFromRow( $row );
1077 if ( $order == 'ASC' ) {
1078 $r = array_reverse( $r ); // make sure it ends up descending
1085 * Returns the history of this file, line by line.
1086 * starts with current version, then old versions.
1087 * uses $this->historyLine to check which line to return:
1088 * 0 return line for current version
1089 * 1 query for old versions, return first one
1090 * 2, ... return next old version from above query
1093 public function nextHistoryLine() {
1094 # Polymorphic function name to distinguish foreign and local fetches
1095 $fname = get_class( $this ) . '::' . __FUNCTION__
;
1097 $dbr = $this->repo
->getSlaveDB();
1099 if ( $this->historyLine
== 0 ) { // called for the first time, return line from cur
1100 $this->historyRes
= $dbr->select( 'image',
1103 "'' AS oi_archive_name",
1107 array( 'img_name' => $this->title
->getDBkey() ),
1111 if ( 0 == $dbr->numRows( $this->historyRes
) ) {
1112 $this->historyRes
= null;
1116 } elseif ( $this->historyLine
== 1 ) {
1117 $this->historyRes
= $dbr->select( 'oldimage', '*',
1118 array( 'oi_name' => $this->title
->getDBkey() ),
1120 array( 'ORDER BY' => 'oi_timestamp DESC' )
1123 $this->historyLine++
;
1125 return $dbr->fetchObject( $this->historyRes
);
1129 * Reset the history pointer to the first element of the history
1131 public function resetHistory() {
1132 $this->historyLine
= 0;
1134 if ( !is_null( $this->historyRes
) ) {
1135 $this->historyRes
= null;
1139 /** getHashPath inherited */
1140 /** getRel inherited */
1141 /** getUrlRel inherited */
1142 /** getArchiveRel inherited */
1143 /** getArchivePath inherited */
1144 /** getThumbPath inherited */
1145 /** getArchiveUrl inherited */
1146 /** getThumbUrl inherited */
1147 /** getArchiveVirtualUrl inherited */
1148 /** getThumbVirtualUrl inherited */
1149 /** isHashed inherited */
1152 * Upload a file and record it in the DB
1153 * @param string $srcPath Source storage path, virtual URL, or filesystem path
1154 * @param string $comment Upload description
1155 * @param string $pageText Text to use for the new description page,
1156 * if a new description page is created
1157 * @param int|bool $flags Flags for publish()
1158 * @param array|bool $props File properties, if known. This can be used to
1159 * reduce the upload time when uploading virtual URLs for which the file
1160 * info is already known
1161 * @param string|bool $timestamp Timestamp for img_timestamp, or false to use the
1163 * @param User|null $user User object or null to use $wgUser
1165 * @return FileRepoStatus On success, the value member contains the
1166 * archive name, or an empty string if it was a new file.
1168 function upload( $srcPath, $comment, $pageText, $flags = 0, $props = false,
1169 $timestamp = false, $user = null
1173 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1174 return $this->readOnlyFatalStatus();
1178 wfProfileIn( __METHOD__
. '-getProps' );
1179 if ( $this->repo
->isVirtualUrl( $srcPath )
1180 || FileBackend
::isStoragePath( $srcPath )
1182 $props = $this->repo
->getFileProps( $srcPath );
1184 $props = FSFile
::getPropsFromPath( $srcPath );
1186 wfProfileOut( __METHOD__
. '-getProps' );
1190 $handler = MediaHandler
::getHandler( $props['mime'] );
1192 $options['headers'] = $handler->getStreamHeaders( $props['metadata'] );
1194 $options['headers'] = array();
1197 // Trim spaces on user supplied text
1198 $comment = trim( $comment );
1200 // Truncate nicely or the DB will do it for us
1201 // non-nicely (dangling multi-byte chars, non-truncated version in cache).
1202 $comment = $wgContLang->truncate( $comment, 255 );
1203 $this->lock(); // begin
1204 $status = $this->publish( $srcPath, $flags, $options );
1206 if ( $status->successCount
>= 2 ) {
1207 // There will be a copy+(one of move,copy,store).
1208 // The first succeeding does not commit us to updating the DB
1209 // since it simply copied the current version to a timestamped file name.
1210 // It is only *preferable* to avoid leaving such files orphaned.
1211 // Once the second operation goes through, then the current version was
1212 // updated and we must therefore update the DB too.
1213 if ( !$this->recordUpload2( $status->value
, $comment, $pageText, $props, $timestamp, $user ) ) {
1214 $status->fatal( 'filenotfound', $srcPath );
1218 $this->unlock(); // done
1224 * Record a file upload in the upload log and the image table
1225 * @param string $oldver
1226 * @param string $desc
1227 * @param string $license
1228 * @param string $copyStatus
1229 * @param string $source
1230 * @param bool $watch
1231 * @param string|bool $timestamp
1232 * @param User|null $user User object or null to use $wgUser
1235 function recordUpload( $oldver, $desc, $license = '', $copyStatus = '', $source = '',
1236 $watch = false, $timestamp = false, User
$user = null ) {
1242 $pageText = SpecialUpload
::getInitialPageText( $desc, $license, $copyStatus, $source );
1244 if ( !$this->recordUpload2( $oldver, $desc, $pageText, false, $timestamp, $user ) ) {
1249 $user->addWatch( $this->getTitle() );
1256 * Record a file upload in the upload log and the image table
1257 * @param string $oldver
1258 * @param string $comment
1259 * @param string $pageText
1260 * @param bool|array $props
1261 * @param string|bool $timestamp
1262 * @param null|User $user
1265 function recordUpload2( $oldver, $comment, $pageText, $props = false, $timestamp = false,
1268 wfProfileIn( __METHOD__
);
1270 if ( is_null( $user ) ) {
1275 $dbw = $this->repo
->getMasterDB();
1276 $dbw->begin( __METHOD__
);
1279 wfProfileIn( __METHOD__
. '-getProps' );
1280 $props = $this->repo
->getFileProps( $this->getVirtualUrl() );
1281 wfProfileOut( __METHOD__
. '-getProps' );
1284 if ( $timestamp === false ) {
1285 $timestamp = $dbw->timestamp();
1288 $props['description'] = $comment;
1289 $props['user'] = $user->getId();
1290 $props['user_text'] = $user->getName();
1291 $props['timestamp'] = wfTimestamp( TS_MW
, $timestamp ); // DB -> TS_MW
1292 $this->setProps( $props );
1294 # Fail now if the file isn't there
1295 if ( !$this->fileExists
) {
1296 wfDebug( __METHOD__
. ": File " . $this->getRel() . " went missing!\n" );
1297 wfProfileOut( __METHOD__
);
1304 # Test to see if the row exists using INSERT IGNORE
1305 # This avoids race conditions by locking the row until the commit, and also
1306 # doesn't deadlock. SELECT FOR UPDATE causes a deadlock for every race condition.
1307 $dbw->insert( 'image',
1309 'img_name' => $this->getName(),
1310 'img_size' => $this->size
,
1311 'img_width' => intval( $this->width
),
1312 'img_height' => intval( $this->height
),
1313 'img_bits' => $this->bits
,
1314 'img_media_type' => $this->media_type
,
1315 'img_major_mime' => $this->major_mime
,
1316 'img_minor_mime' => $this->minor_mime
,
1317 'img_timestamp' => $timestamp,
1318 'img_description' => $comment,
1319 'img_user' => $user->getId(),
1320 'img_user_text' => $user->getName(),
1321 'img_metadata' => $dbw->encodeBlob( $this->metadata
),
1322 'img_sha1' => $this->sha1
1327 if ( $dbw->affectedRows() == 0 ) {
1328 # (bug 34993) Note: $oldver can be empty here, if the previous
1329 # version of the file was broken. Allow registration of the new
1330 # version to continue anyway, because that's better than having
1331 # an image that's not fixable by user operations.
1334 # Collision, this is an update of a file
1335 # Insert previous contents into oldimage
1336 $dbw->insertSelect( 'oldimage', 'image',
1338 'oi_name' => 'img_name',
1339 'oi_archive_name' => $dbw->addQuotes( $oldver ),
1340 'oi_size' => 'img_size',
1341 'oi_width' => 'img_width',
1342 'oi_height' => 'img_height',
1343 'oi_bits' => 'img_bits',
1344 'oi_timestamp' => 'img_timestamp',
1345 'oi_description' => 'img_description',
1346 'oi_user' => 'img_user',
1347 'oi_user_text' => 'img_user_text',
1348 'oi_metadata' => 'img_metadata',
1349 'oi_media_type' => 'img_media_type',
1350 'oi_major_mime' => 'img_major_mime',
1351 'oi_minor_mime' => 'img_minor_mime',
1352 'oi_sha1' => 'img_sha1'
1354 array( 'img_name' => $this->getName() ),
1358 # Update the current image row
1359 $dbw->update( 'image',
1361 'img_size' => $this->size
,
1362 'img_width' => intval( $this->width
),
1363 'img_height' => intval( $this->height
),
1364 'img_bits' => $this->bits
,
1365 'img_media_type' => $this->media_type
,
1366 'img_major_mime' => $this->major_mime
,
1367 'img_minor_mime' => $this->minor_mime
,
1368 'img_timestamp' => $timestamp,
1369 'img_description' => $comment,
1370 'img_user' => $user->getId(),
1371 'img_user_text' => $user->getName(),
1372 'img_metadata' => $dbw->encodeBlob( $this->metadata
),
1373 'img_sha1' => $this->sha1
1375 array( 'img_name' => $this->getName() ),
1379 # This is a new file, so update the image count
1380 DeferredUpdates
::addUpdate( SiteStatsUpdate
::factory( array( 'images' => 1 ) ) );
1383 $descTitle = $this->getTitle();
1384 $wikiPage = new WikiFilePage( $descTitle );
1385 $wikiPage->setFile( $this );
1388 $action = $reupload ?
'overwrite' : 'upload';
1390 $logEntry = new ManualLogEntry( 'upload', $action );
1391 $logEntry->setPerformer( $user );
1392 $logEntry->setComment( $comment );
1393 $logEntry->setTarget( $descTitle );
1395 // Allow people using the api to associate log entries with the upload.
1396 // Log has a timestamp, but sometimes different from upload timestamp.
1397 $logEntry->setParameters(
1399 'img_sha1' => $this->sha1
,
1400 'img_timestamp' => $timestamp,
1403 // Note we keep $logId around since during new image
1404 // creation, page doesn't exist yet, so log_page = 0
1405 // but we want it to point to the page we're making,
1406 // so we later modify the log entry.
1407 // For a similar reason, we avoid making an RC entry
1408 // now and wait until the page exists.
1409 $logId = $logEntry->insert();
1411 $exists = $descTitle->exists();
1413 // Page exists, do RC entry now (otherwise we wait for later).
1414 $logEntry->publish( $logId );
1416 wfProfileIn( __METHOD__
. '-edit' );
1419 # Create a null revision
1420 $latest = $descTitle->getLatestRevID();
1421 $editSummary = LogFormatter
::newFromEntry( $logEntry )->getPlainActionText();
1423 $nullRevision = Revision
::newNullRevision(
1425 $descTitle->getArticleID(),
1429 if ( !is_null( $nullRevision ) ) {
1430 $nullRevision->insertOn( $dbw );
1432 wfRunHooks( 'NewRevisionFromEditComplete', array( $wikiPage, $nullRevision, $latest, $user ) );
1433 $wikiPage->updateRevisionOn( $dbw, $nullRevision );
1437 # Commit the transaction now, in case something goes wrong later
1438 # The most important thing is that files don't get lost, especially archives
1439 # NOTE: once we have support for nested transactions, the commit may be moved
1440 # to after $wikiPage->doEdit has been called.
1441 $dbw->commit( __METHOD__
);
1444 # We shall not saveToCache before the commit since otherwise
1445 # in case of a rollback there is an usable file from memcached
1446 # which in fact doesn't really exist (bug 24978)
1447 $this->saveToCache();
1450 # Invalidate the cache for the description page
1451 $descTitle->invalidateCache();
1452 $descTitle->purgeSquid();
1454 # New file; create the description page.
1455 # There's already a log entry, so don't make a second RC entry
1456 # Squid and file cache for the description page are purged by doEditContent.
1457 $content = ContentHandler
::makeContent( $pageText, $descTitle );
1458 $status = $wikiPage->doEditContent(
1461 EDIT_NEW | EDIT_SUPPRESS_RC
,
1466 $dbw->begin( __METHOD__
); // XXX; doEdit() uses a transaction
1467 // Now that the page exists, make an RC entry.
1468 $logEntry->publish( $logId );
1469 if ( isset( $status->value
['revision'] ) ) {
1470 $dbw->update( 'logging',
1471 array( 'log_page' => $status->value
['revision']->getPage() ),
1472 array( 'log_id' => $logId ),
1476 $dbw->commit( __METHOD__
); // commit before anything bad can happen
1479 wfProfileOut( __METHOD__
. '-edit' );
1483 # Delete old thumbnails
1484 wfProfileIn( __METHOD__
. '-purge' );
1485 $this->purgeThumbnails();
1486 wfProfileOut( __METHOD__
. '-purge' );
1488 # Remove the old file from the squid cache
1489 SquidUpdate
::purge( array( $this->getURL() ) );
1492 # Hooks, hooks, the magic of hooks...
1493 wfProfileIn( __METHOD__
. '-hooks' );
1494 wfRunHooks( 'FileUpload', array( $this, $reupload, $descTitle->exists() ) );
1495 wfProfileOut( __METHOD__
. '-hooks' );
1497 # Invalidate cache for all pages using this file
1498 $update = new HTMLCacheUpdate( $this->getTitle(), 'imagelinks' );
1499 $update->doUpdate();
1501 LinksUpdate
::queueRecursiveJobsForTable( $this->getTitle(), 'imagelinks' );
1504 wfProfileOut( __METHOD__
);
1510 * Move or copy a file to its public location. If a file exists at the
1511 * destination, move it to an archive. Returns a FileRepoStatus object with
1512 * the archive name in the "value" member on success.
1514 * The archive name should be passed through to recordUpload for database
1517 * @param string $srcPath Local filesystem path to the source image
1518 * @param int $flags A bitwise combination of:
1519 * File::DELETE_SOURCE Delete the source file, i.e. move rather than copy
1520 * @param array $options Optional additional parameters
1521 * @return FileRepoStatus On success, the value member contains the
1522 * archive name, or an empty string if it was a new file.
1524 function publish( $srcPath, $flags = 0, array $options = array() ) {
1525 return $this->publishTo( $srcPath, $this->getRel(), $flags, $options );
1529 * Move or copy a file to a specified location. Returns a FileRepoStatus
1530 * object with the archive name in the "value" member on success.
1532 * The archive name should be passed through to recordUpload for database
1535 * @param string $srcPath Local filesystem path to the source image
1536 * @param string $dstRel Target relative path
1537 * @param int $flags A bitwise combination of:
1538 * File::DELETE_SOURCE Delete the source file, i.e. move rather than copy
1539 * @param array $options Optional additional parameters
1540 * @return FileRepoStatus On success, the value member contains the
1541 * archive name, or an empty string if it was a new file.
1543 function publishTo( $srcPath, $dstRel, $flags = 0, array $options = array() ) {
1544 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1545 return $this->readOnlyFatalStatus();
1548 $this->lock(); // begin
1550 $archiveName = wfTimestamp( TS_MW
) . '!' . $this->getName();
1551 $archiveRel = 'archive/' . $this->getHashPath() . $archiveName;
1552 $flags = $flags & File
::DELETE_SOURCE ? LocalRepo
::DELETE_SOURCE
: 0;
1553 $status = $this->repo
->publish( $srcPath, $dstRel, $archiveRel, $flags, $options );
1555 if ( $status->value
== 'new' ) {
1556 $status->value
= '';
1558 $status->value
= $archiveName;
1561 $this->unlock(); // done
1566 /** getLinksTo inherited */
1567 /** getExifData inherited */
1568 /** isLocal inherited */
1569 /** wasDeleted inherited */
1572 * Move file to the new title
1574 * Move current, old version and all thumbnails
1575 * to the new filename. Old file is deleted.
1577 * Cache purging is done; checks for validity
1578 * and logging are caller's responsibility
1580 * @param Title $target New file name
1581 * @return FileRepoStatus
1583 function move( $target ) {
1584 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1585 return $this->readOnlyFatalStatus();
1588 wfDebugLog( 'imagemove', "Got request to move {$this->name} to " . $target->getText() );
1589 $batch = new LocalFileMoveBatch( $this, $target );
1591 $this->lock(); // begin
1592 $batch->addCurrent();
1593 $archiveNames = $batch->addOlds();
1594 $status = $batch->execute();
1595 $this->unlock(); // done
1597 wfDebugLog( 'imagemove', "Finished moving {$this->name}" );
1599 // Purge the source and target files...
1600 $oldTitleFile = wfLocalFile( $this->title
);
1601 $newTitleFile = wfLocalFile( $target );
1602 // Hack: the lock()/unlock() pair is nested in a transaction so the locking is not
1603 // tied to BEGIN/COMMIT. To avoid slow purges in the transaction, move them outside.
1604 $this->getRepo()->getMasterDB()->onTransactionIdle(
1605 function () use ( $oldTitleFile, $newTitleFile, $archiveNames ) {
1606 $oldTitleFile->purgeEverything();
1607 foreach ( $archiveNames as $archiveName ) {
1608 $oldTitleFile->purgeOldThumbnails( $archiveName );
1610 $newTitleFile->purgeEverything();
1614 if ( $status->isOK() ) {
1615 // Now switch the object
1616 $this->title
= $target;
1617 // Force regeneration of the name and hashpath
1618 unset( $this->name
);
1619 unset( $this->hashPath
);
1626 * Delete all versions of the file.
1628 * Moves the files into an archive directory (or deletes them)
1629 * and removes the database rows.
1631 * Cache purging is done; logging is caller's responsibility.
1633 * @param string $reason
1634 * @param bool $suppress
1635 * @return FileRepoStatus
1637 function delete( $reason, $suppress = false ) {
1638 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1639 return $this->readOnlyFatalStatus();
1642 $batch = new LocalFileDeleteBatch( $this, $reason, $suppress );
1644 $this->lock(); // begin
1645 $batch->addCurrent();
1646 # Get old version relative paths
1647 $archiveNames = $batch->addOlds();
1648 $status = $batch->execute();
1649 $this->unlock(); // done
1651 if ( $status->isOK() ) {
1652 DeferredUpdates
::addUpdate( SiteStatsUpdate
::factory( array( 'images' => -1 ) ) );
1655 // Hack: the lock()/unlock() pair is nested in a transaction so the locking is not
1656 // tied to BEGIN/COMMIT. To avoid slow purges in the transaction, move them outside.
1658 $this->getRepo()->getMasterDB()->onTransactionIdle(
1659 function () use ( $file, $archiveNames ) {
1662 $file->purgeEverything();
1663 foreach ( $archiveNames as $archiveName ) {
1664 $file->purgeOldThumbnails( $archiveName );
1667 if ( $wgUseSquid ) {
1669 $purgeUrls = array();
1670 foreach ( $archiveNames as $archiveName ) {
1671 $purgeUrls[] = $file->getArchiveUrl( $archiveName );
1673 SquidUpdate
::purge( $purgeUrls );
1682 * Delete an old version of the file.
1684 * Moves the file into an archive directory (or deletes it)
1685 * and removes the database row.
1687 * Cache purging is done; logging is caller's responsibility.
1689 * @param string $archiveName
1690 * @param string $reason
1691 * @param bool $suppress
1692 * @throws MWException Exception on database or file store failure
1693 * @return FileRepoStatus
1695 function deleteOld( $archiveName, $reason, $suppress = false ) {
1697 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1698 return $this->readOnlyFatalStatus();
1701 $batch = new LocalFileDeleteBatch( $this, $reason, $suppress );
1703 $this->lock(); // begin
1704 $batch->addOld( $archiveName );
1705 $status = $batch->execute();
1706 $this->unlock(); // done
1708 $this->purgeOldThumbnails( $archiveName );
1709 if ( $status->isOK() ) {
1710 $this->purgeDescription();
1711 $this->purgeHistory();
1714 if ( $wgUseSquid ) {
1716 SquidUpdate
::purge( array( $this->getArchiveUrl( $archiveName ) ) );
1723 * Restore all or specified deleted revisions to the given file.
1724 * Permissions and logging are left to the caller.
1726 * May throw database exceptions on error.
1728 * @param array $versions Set of record ids of deleted items to restore,
1729 * or empty to restore all revisions.
1730 * @param bool $unsuppress
1731 * @return FileRepoStatus
1733 function restore( $versions = array(), $unsuppress = false ) {
1734 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1735 return $this->readOnlyFatalStatus();
1738 $batch = new LocalFileRestoreBatch( $this, $unsuppress );
1740 $this->lock(); // begin
1744 $batch->addIds( $versions );
1746 $status = $batch->execute();
1747 if ( $status->isGood() ) {
1748 $cleanupStatus = $batch->cleanup();
1749 $cleanupStatus->successCount
= 0;
1750 $cleanupStatus->failCount
= 0;
1751 $status->merge( $cleanupStatus );
1753 $this->unlock(); // done
1758 /** isMultipage inherited */
1759 /** pageCount inherited */
1760 /** scaleHeight inherited */
1761 /** getImageSize inherited */
1764 * Get the URL of the file description page.
1767 function getDescriptionUrl() {
1768 return $this->title
->getLocalURL();
1772 * Get the HTML text of the description page
1773 * This is not used by ImagePage for local files, since (among other things)
1774 * it skips the parser cache.
1776 * @param Language $lang What language to get description in (Optional)
1777 * @return bool|mixed
1779 function getDescriptionText( $lang = null ) {
1780 $revision = Revision
::newFromTitle( $this->title
, false, Revision
::READ_NORMAL
);
1784 $content = $revision->getContent();
1788 $pout = $content->getParserOutput( $this->title
, null, new ParserOptions( null, $lang ) );
1790 return $pout->getText();
1794 * @param int $audience
1798 function getDescription( $audience = self
::FOR_PUBLIC
, User
$user = null ) {
1800 if ( $audience == self
::FOR_PUBLIC
&& $this->isDeleted( self
::DELETED_COMMENT
) ) {
1802 } elseif ( $audience == self
::FOR_THIS_USER
1803 && !$this->userCan( self
::DELETED_COMMENT
, $user )
1807 return $this->description
;
1812 * @return bool|string
1814 function getTimestamp() {
1817 return $this->timestamp
;
1823 function getSha1() {
1825 // Initialise now if necessary
1826 if ( $this->sha1
== '' && $this->fileExists
) {
1827 $this->lock(); // begin
1829 $this->sha1
= $this->repo
->getFileSha1( $this->getPath() );
1830 if ( !wfReadOnly() && strval( $this->sha1
) != '' ) {
1831 $dbw = $this->repo
->getMasterDB();
1832 $dbw->update( 'image',
1833 array( 'img_sha1' => $this->sha1
),
1834 array( 'img_name' => $this->getName() ),
1836 $this->saveToCache();
1839 $this->unlock(); // done
1846 * @return bool Whether to cache in RepoGroup (this avoids OOMs)
1848 function isCacheable() {
1851 // If extra data (metadata) was not loaded then it must have been large
1852 return $this->extraDataLoaded
1853 && strlen( serialize( $this->metadata
) ) <= self
::CACHE_FIELD_MAX_LEN
;
1857 * Start a transaction and lock the image for update
1858 * Increments a reference counter if the lock is already held
1859 * @throws MWException
1860 * @return bool True if the image exists, false otherwise
1863 $dbw = $this->repo
->getMasterDB();
1865 if ( !$this->locked
) {
1866 if ( !$dbw->trxLevel() ) {
1867 $dbw->begin( __METHOD__
);
1868 $this->lockedOwnTrx
= true;
1871 // Bug 54736: use simple lock to handle when the file does not exist.
1872 // SELECT FOR UPDATE only locks records not the gaps where there are none.
1873 $cache = wfGetMainCache();
1874 $key = $this->getCacheKey();
1875 if ( !$cache->lock( $key, 5 ) ) {
1876 throw new MWException( "Could not acquire lock for '{$this->getName()}.'" );
1878 $dbw->onTransactionIdle( function () use ( $cache, $key ) {
1879 $cache->unlock( $key ); // release on commit
1883 $this->markVolatile(); // file may change soon
1885 return $dbw->selectField( 'image', '1',
1886 array( 'img_name' => $this->getName() ), __METHOD__
, array( 'FOR UPDATE' ) );
1890 * Decrement the lock reference count. If the reference count is reduced to zero, commits
1891 * the transaction and thereby releases the image lock.
1894 if ( $this->locked
) {
1896 if ( !$this->locked
&& $this->lockedOwnTrx
) {
1897 $dbw = $this->repo
->getMasterDB();
1898 $dbw->commit( __METHOD__
);
1899 $this->lockedOwnTrx
= false;
1905 * Mark a file as about to be changed
1907 * This sets a cache key that alters master/slave DB loading behavior
1909 * @return bool Success
1911 protected function markVolatile() {
1914 $key = $this->repo
->getSharedCacheKey( 'file-volatile', md5( $this->getName() ) );
1916 $this->lastMarkedVolatile
= time();
1917 return $wgMemc->set( $key, $this->lastMarkedVolatile
, self
::VOLATILE_TTL
);
1924 * Check if a file is about to be changed or has been changed recently
1926 * @see LocalFile::isVolatile()
1927 * @return bool Whether the file is volatile
1929 protected function isVolatile() {
1932 $key = $this->repo
->getSharedCacheKey( 'file-volatile', md5( $this->getName() ) );
1934 if ( $this->lastMarkedVolatile
1935 && ( time() - $this->lastMarkedVolatile
) <= self
::VOLATILE_TTL
1937 return true; // sanity
1939 $volatileTimestamp = (int)$wgMemc->get( $key );
1940 $this->lastMarkedVolatile
= max( $this->lastMarkedVolatile
, $volatileTimestamp );
1941 return ( $volatileTimestamp != 0 );
1948 * Roll back the DB transaction and mark the image unlocked
1950 function unlockAndRollback() {
1951 $this->locked
= false;
1952 $dbw = $this->repo
->getMasterDB();
1953 $dbw->rollback( __METHOD__
);
1954 $this->lockedOwnTrx
= false;
1960 protected function readOnlyFatalStatus() {
1961 return $this->getRepo()->newFatal( 'filereadonlyerror', $this->getName(),
1962 $this->getRepo()->getName(), $this->getRepo()->getReadOnlyReason() );
1966 * Clean up any dangling locks
1968 function __destruct() {
1971 } // LocalFile class
1973 # ------------------------------------------------------------------------------
1976 * Helper class for file deletion
1977 * @ingroup FileAbstraction
1979 class LocalFileDeleteBatch
{
1980 /** @var LocalFile */
1987 private $srcRels = array();
1990 private $archiveUrls = array();
1992 /** @var array Items to be processed in the deletion batch */
1993 private $deletionBatch;
1995 /** @var bool Wether to suppress all suppressable fields when deleting */
1998 /** @var FileRepoStatus */
2003 * @param string $reason
2004 * @param bool $suppress
2006 function __construct( File
$file, $reason = '', $suppress = false ) {
2007 $this->file
= $file;
2008 $this->reason
= $reason;
2009 $this->suppress
= $suppress;
2010 $this->status
= $file->repo
->newGood();
2013 function addCurrent() {
2014 $this->srcRels
['.'] = $this->file
->getRel();
2018 * @param string $oldName
2020 function addOld( $oldName ) {
2021 $this->srcRels
[$oldName] = $this->file
->getArchiveRel( $oldName );
2022 $this->archiveUrls
[] = $this->file
->getArchiveUrl( $oldName );
2026 * Add the old versions of the image to the batch
2027 * @return array List of archive names from old versions
2029 function addOlds() {
2030 $archiveNames = array();
2032 $dbw = $this->file
->repo
->getMasterDB();
2033 $result = $dbw->select( 'oldimage',
2034 array( 'oi_archive_name' ),
2035 array( 'oi_name' => $this->file
->getName() ),
2039 foreach ( $result as $row ) {
2040 $this->addOld( $row->oi_archive_name
);
2041 $archiveNames[] = $row->oi_archive_name
;
2044 return $archiveNames;
2050 function getOldRels() {
2051 if ( !isset( $this->srcRels
['.'] ) ) {
2052 $oldRels =& $this->srcRels
;
2053 $deleteCurrent = false;
2055 $oldRels = $this->srcRels
;
2056 unset( $oldRels['.'] );
2057 $deleteCurrent = true;
2060 return array( $oldRels, $deleteCurrent );
2066 protected function getHashes() {
2068 list( $oldRels, $deleteCurrent ) = $this->getOldRels();
2070 if ( $deleteCurrent ) {
2071 $hashes['.'] = $this->file
->getSha1();
2074 if ( count( $oldRels ) ) {
2075 $dbw = $this->file
->repo
->getMasterDB();
2076 $res = $dbw->select(
2078 array( 'oi_archive_name', 'oi_sha1' ),
2079 array( 'oi_archive_name' => array_keys( $oldRels ),
2080 'oi_name' => $this->file
->getName() ), // performance
2084 foreach ( $res as $row ) {
2085 if ( rtrim( $row->oi_sha1
, "\0" ) === '' ) {
2086 // Get the hash from the file
2087 $oldUrl = $this->file
->getArchiveVirtualUrl( $row->oi_archive_name
);
2088 $props = $this->file
->repo
->getFileProps( $oldUrl );
2090 if ( $props['fileExists'] ) {
2091 // Upgrade the oldimage row
2092 $dbw->update( 'oldimage',
2093 array( 'oi_sha1' => $props['sha1'] ),
2094 array( 'oi_name' => $this->file
->getName(), 'oi_archive_name' => $row->oi_archive_name
),
2096 $hashes[$row->oi_archive_name
] = $props['sha1'];
2098 $hashes[$row->oi_archive_name
] = false;
2101 $hashes[$row->oi_archive_name
] = $row->oi_sha1
;
2106 $missing = array_diff_key( $this->srcRels
, $hashes );
2108 foreach ( $missing as $name => $rel ) {
2109 $this->status
->error( 'filedelete-old-unregistered', $name );
2112 foreach ( $hashes as $name => $hash ) {
2114 $this->status
->error( 'filedelete-missing', $this->srcRels
[$name] );
2115 unset( $hashes[$name] );
2122 function doDBInserts() {
2125 $dbw = $this->file
->repo
->getMasterDB();
2126 $encTimestamp = $dbw->addQuotes( $dbw->timestamp() );
2127 $encUserId = $dbw->addQuotes( $wgUser->getId() );
2128 $encReason = $dbw->addQuotes( $this->reason
);
2129 $encGroup = $dbw->addQuotes( 'deleted' );
2130 $ext = $this->file
->getExtension();
2131 $dotExt = $ext === '' ?
'' : ".$ext";
2132 $encExt = $dbw->addQuotes( $dotExt );
2133 list( $oldRels, $deleteCurrent ) = $this->getOldRels();
2135 // Bitfields to further suppress the content
2136 if ( $this->suppress
) {
2138 // This should be 15...
2139 $bitfield |
= Revision
::DELETED_TEXT
;
2140 $bitfield |
= Revision
::DELETED_COMMENT
;
2141 $bitfield |
= Revision
::DELETED_USER
;
2142 $bitfield |
= Revision
::DELETED_RESTRICTED
;
2144 $bitfield = 'oi_deleted';
2147 if ( $deleteCurrent ) {
2148 $concat = $dbw->buildConcat( array( "img_sha1", $encExt ) );
2149 $where = array( 'img_name' => $this->file
->getName() );
2150 $dbw->insertSelect( 'filearchive', 'image',
2152 'fa_storage_group' => $encGroup,
2153 'fa_storage_key' => "CASE WHEN img_sha1='' THEN '' ELSE $concat END",
2154 'fa_deleted_user' => $encUserId,
2155 'fa_deleted_timestamp' => $encTimestamp,
2156 'fa_deleted_reason' => $encReason,
2157 'fa_deleted' => $this->suppress ?
$bitfield : 0,
2159 'fa_name' => 'img_name',
2160 'fa_archive_name' => 'NULL',
2161 'fa_size' => 'img_size',
2162 'fa_width' => 'img_width',
2163 'fa_height' => 'img_height',
2164 'fa_metadata' => 'img_metadata',
2165 'fa_bits' => 'img_bits',
2166 'fa_media_type' => 'img_media_type',
2167 'fa_major_mime' => 'img_major_mime',
2168 'fa_minor_mime' => 'img_minor_mime',
2169 'fa_description' => 'img_description',
2170 'fa_user' => 'img_user',
2171 'fa_user_text' => 'img_user_text',
2172 'fa_timestamp' => 'img_timestamp',
2173 'fa_sha1' => 'img_sha1',
2174 ), $where, __METHOD__
);
2177 if ( count( $oldRels ) ) {
2178 $concat = $dbw->buildConcat( array( "oi_sha1", $encExt ) );
2180 'oi_name' => $this->file
->getName(),
2181 'oi_archive_name' => array_keys( $oldRels ) );
2182 $dbw->insertSelect( 'filearchive', 'oldimage',
2184 'fa_storage_group' => $encGroup,
2185 'fa_storage_key' => "CASE WHEN oi_sha1='' THEN '' ELSE $concat END",
2186 'fa_deleted_user' => $encUserId,
2187 'fa_deleted_timestamp' => $encTimestamp,
2188 'fa_deleted_reason' => $encReason,
2189 'fa_deleted' => $this->suppress ?
$bitfield : 'oi_deleted',
2191 'fa_name' => 'oi_name',
2192 'fa_archive_name' => 'oi_archive_name',
2193 'fa_size' => 'oi_size',
2194 'fa_width' => 'oi_width',
2195 'fa_height' => 'oi_height',
2196 'fa_metadata' => 'oi_metadata',
2197 'fa_bits' => 'oi_bits',
2198 'fa_media_type' => 'oi_media_type',
2199 'fa_major_mime' => 'oi_major_mime',
2200 'fa_minor_mime' => 'oi_minor_mime',
2201 'fa_description' => 'oi_description',
2202 'fa_user' => 'oi_user',
2203 'fa_user_text' => 'oi_user_text',
2204 'fa_timestamp' => 'oi_timestamp',
2205 'fa_sha1' => 'oi_sha1',
2206 ), $where, __METHOD__
);
2210 function doDBDeletes() {
2211 $dbw = $this->file
->repo
->getMasterDB();
2212 list( $oldRels, $deleteCurrent ) = $this->getOldRels();
2214 if ( count( $oldRels ) ) {
2215 $dbw->delete( 'oldimage',
2217 'oi_name' => $this->file
->getName(),
2218 'oi_archive_name' => array_keys( $oldRels )
2222 if ( $deleteCurrent ) {
2223 $dbw->delete( 'image', array( 'img_name' => $this->file
->getName() ), __METHOD__
);
2228 * Run the transaction
2229 * @return FileRepoStatus
2231 function execute() {
2232 wfProfileIn( __METHOD__
);
2234 $this->file
->lock();
2235 // Leave private files alone
2236 $privateFiles = array();
2237 list( $oldRels, ) = $this->getOldRels();
2238 $dbw = $this->file
->repo
->getMasterDB();
2240 if ( !empty( $oldRels ) ) {
2241 $res = $dbw->select( 'oldimage',
2242 array( 'oi_archive_name' ),
2243 array( 'oi_name' => $this->file
->getName(),
2244 'oi_archive_name' => array_keys( $oldRels ),
2245 $dbw->bitAnd( 'oi_deleted', File
::DELETED_FILE
) => File
::DELETED_FILE
),
2248 foreach ( $res as $row ) {
2249 $privateFiles[$row->oi_archive_name
] = 1;
2252 // Prepare deletion batch
2253 $hashes = $this->getHashes();
2254 $this->deletionBatch
= array();
2255 $ext = $this->file
->getExtension();
2256 $dotExt = $ext === '' ?
'' : ".$ext";
2258 foreach ( $this->srcRels
as $name => $srcRel ) {
2259 // Skip files that have no hash (missing source).
2260 // Keep private files where they are.
2261 if ( isset( $hashes[$name] ) && !array_key_exists( $name, $privateFiles ) ) {
2262 $hash = $hashes[$name];
2263 $key = $hash . $dotExt;
2264 $dstRel = $this->file
->repo
->getDeletedHashPath( $key ) . $key;
2265 $this->deletionBatch
[$name] = array( $srcRel, $dstRel );
2269 // Lock the filearchive rows so that the files don't get deleted by a cleanup operation
2270 // We acquire this lock by running the inserts now, before the file operations.
2272 // This potentially has poor lock contention characteristics -- an alternative
2273 // scheme would be to insert stub filearchive entries with no fa_name and commit
2274 // them in a separate transaction, then run the file ops, then update the fa_name fields.
2275 $this->doDBInserts();
2277 // Removes non-existent file from the batch, so we don't get errors.
2278 $this->deletionBatch
= $this->removeNonexistentFiles( $this->deletionBatch
);
2280 // Execute the file deletion batch
2281 $status = $this->file
->repo
->deleteBatch( $this->deletionBatch
);
2283 if ( !$status->isGood() ) {
2284 $this->status
->merge( $status );
2287 if ( !$this->status
->isOK() ) {
2288 // Critical file deletion error
2289 // Roll back inserts, release lock and abort
2290 // TODO: delete the defunct filearchive rows if we are using a non-transactional DB
2291 $this->file
->unlockAndRollback();
2292 wfProfileOut( __METHOD__
);
2294 return $this->status
;
2297 // Delete image/oldimage rows
2298 $this->doDBDeletes();
2300 // Commit and return
2301 $this->file
->unlock();
2302 wfProfileOut( __METHOD__
);
2304 return $this->status
;
2308 * Removes non-existent files from a deletion batch.
2309 * @param array $batch
2312 function removeNonexistentFiles( $batch ) {
2313 $files = $newBatch = array();
2315 foreach ( $batch as $batchItem ) {
2316 list( $src, ) = $batchItem;
2317 $files[$src] = $this->file
->repo
->getVirtualUrl( 'public' ) . '/' . rawurlencode( $src );
2320 $result = $this->file
->repo
->fileExistsBatch( $files );
2322 foreach ( $batch as $batchItem ) {
2323 if ( $result[$batchItem[0]] ) {
2324 $newBatch[] = $batchItem;
2332 # ------------------------------------------------------------------------------
2335 * Helper class for file undeletion
2336 * @ingroup FileAbstraction
2338 class LocalFileRestoreBatch
{
2339 /** @var LocalFile */
2342 /** @var array List of file IDs to restore */
2343 private $cleanupBatch;
2345 /** @var array List of file IDs to restore */
2348 /** @var bool Add all revisions of the file */
2351 /** @var bool Wether to remove all settings for suppressed fields */
2352 private $unsuppress = false;
2356 * @param bool $unsuppress
2358 function __construct( File
$file, $unsuppress = false ) {
2359 $this->file
= $file;
2360 $this->cleanupBatch
= $this->ids
= array();
2361 $this->ids
= array();
2362 $this->unsuppress
= $unsuppress;
2368 function addId( $fa_id ) {
2369 $this->ids
[] = $fa_id;
2373 * Add a whole lot of files by ID
2375 function addIds( $ids ) {
2376 $this->ids
= array_merge( $this->ids
, $ids );
2380 * Add all revisions of the file
2387 * Run the transaction, except the cleanup batch.
2388 * The cleanup batch should be run in a separate transaction, because it locks different
2389 * rows and there's no need to keep the image row locked while it's acquiring those locks
2390 * The caller may have its own transaction open.
2391 * So we save the batch and let the caller call cleanup()
2392 * @return FileRepoStatus
2394 function execute() {
2397 if ( !$this->all
&& !$this->ids
) {
2399 return $this->file
->repo
->newGood();
2402 $exists = $this->file
->lock();
2403 $dbw = $this->file
->repo
->getMasterDB();
2404 $status = $this->file
->repo
->newGood();
2406 // Fetch all or selected archived revisions for the file,
2407 // sorted from the most recent to the oldest.
2408 $conditions = array( 'fa_name' => $this->file
->getName() );
2410 if ( !$this->all
) {
2411 $conditions['fa_id'] = $this->ids
;
2414 $result = $dbw->select(
2416 ArchivedFile
::selectFields(),
2419 array( 'ORDER BY' => 'fa_timestamp DESC' )
2422 $idsPresent = array();
2423 $storeBatch = array();
2424 $insertBatch = array();
2425 $insertCurrent = false;
2426 $deleteIds = array();
2428 $archiveNames = array();
2430 foreach ( $result as $row ) {
2431 $idsPresent[] = $row->fa_id
;
2433 if ( $row->fa_name
!= $this->file
->getName() ) {
2434 $status->error( 'undelete-filename-mismatch', $wgLang->timeanddate( $row->fa_timestamp
) );
2435 $status->failCount++
;
2439 if ( $row->fa_storage_key
== '' ) {
2440 // Revision was missing pre-deletion
2441 $status->error( 'undelete-bad-store-key', $wgLang->timeanddate( $row->fa_timestamp
) );
2442 $status->failCount++
;
2446 $deletedRel = $this->file
->repo
->getDeletedHashPath( $row->fa_storage_key
) .
2447 $row->fa_storage_key
;
2448 $deletedUrl = $this->file
->repo
->getVirtualUrl() . '/deleted/' . $deletedRel;
2450 if ( isset( $row->fa_sha1
) ) {
2451 $sha1 = $row->fa_sha1
;
2453 // old row, populate from key
2454 $sha1 = LocalRepo
::getHashFromKey( $row->fa_storage_key
);
2458 if ( strlen( $sha1 ) == 32 && $sha1[0] == '0' ) {
2459 $sha1 = substr( $sha1, 1 );
2462 if ( is_null( $row->fa_major_mime
) ||
$row->fa_major_mime
== 'unknown'
2463 ||
is_null( $row->fa_minor_mime
) ||
$row->fa_minor_mime
== 'unknown'
2464 ||
is_null( $row->fa_media_type
) ||
$row->fa_media_type
== 'UNKNOWN'
2465 ||
is_null( $row->fa_metadata
)
2467 // Refresh our metadata
2468 // Required for a new current revision; nice for older ones too. :)
2469 $props = RepoGroup
::singleton()->getFileProps( $deletedUrl );
2472 'minor_mime' => $row->fa_minor_mime
,
2473 'major_mime' => $row->fa_major_mime
,
2474 'media_type' => $row->fa_media_type
,
2475 'metadata' => $row->fa_metadata
2479 if ( $first && !$exists ) {
2480 // This revision will be published as the new current version
2481 $destRel = $this->file
->getRel();
2482 $insertCurrent = array(
2483 'img_name' => $row->fa_name
,
2484 'img_size' => $row->fa_size
,
2485 'img_width' => $row->fa_width
,
2486 'img_height' => $row->fa_height
,
2487 'img_metadata' => $props['metadata'],
2488 'img_bits' => $row->fa_bits
,
2489 'img_media_type' => $props['media_type'],
2490 'img_major_mime' => $props['major_mime'],
2491 'img_minor_mime' => $props['minor_mime'],
2492 'img_description' => $row->fa_description
,
2493 'img_user' => $row->fa_user
,
2494 'img_user_text' => $row->fa_user_text
,
2495 'img_timestamp' => $row->fa_timestamp
,
2499 // The live (current) version cannot be hidden!
2500 if ( !$this->unsuppress
&& $row->fa_deleted
) {
2501 $storeBatch[] = array( $deletedUrl, 'public', $destRel );
2502 $this->cleanupBatch
[] = $row->fa_storage_key
;
2505 $archiveName = $row->fa_archive_name
;
2507 if ( $archiveName == '' ) {
2508 // This was originally a current version; we
2509 // have to devise a new archive name for it.
2510 // Format is <timestamp of archiving>!<name>
2511 $timestamp = wfTimestamp( TS_UNIX
, $row->fa_deleted_timestamp
);
2514 $archiveName = wfTimestamp( TS_MW
, $timestamp ) . '!' . $row->fa_name
;
2516 } while ( isset( $archiveNames[$archiveName] ) );
2519 $archiveNames[$archiveName] = true;
2520 $destRel = $this->file
->getArchiveRel( $archiveName );
2521 $insertBatch[] = array(
2522 'oi_name' => $row->fa_name
,
2523 'oi_archive_name' => $archiveName,
2524 'oi_size' => $row->fa_size
,
2525 'oi_width' => $row->fa_width
,
2526 'oi_height' => $row->fa_height
,
2527 'oi_bits' => $row->fa_bits
,
2528 'oi_description' => $row->fa_description
,
2529 'oi_user' => $row->fa_user
,
2530 'oi_user_text' => $row->fa_user_text
,
2531 'oi_timestamp' => $row->fa_timestamp
,
2532 'oi_metadata' => $props['metadata'],
2533 'oi_media_type' => $props['media_type'],
2534 'oi_major_mime' => $props['major_mime'],
2535 'oi_minor_mime' => $props['minor_mime'],
2536 'oi_deleted' => $this->unsuppress ?
0 : $row->fa_deleted
,
2537 'oi_sha1' => $sha1 );
2540 $deleteIds[] = $row->fa_id
;
2542 if ( !$this->unsuppress
&& $row->fa_deleted
& File
::DELETED_FILE
) {
2543 // private files can stay where they are
2544 $status->successCount++
;
2546 $storeBatch[] = array( $deletedUrl, 'public', $destRel );
2547 $this->cleanupBatch
[] = $row->fa_storage_key
;
2555 // Add a warning to the status object for missing IDs
2556 $missingIds = array_diff( $this->ids
, $idsPresent );
2558 foreach ( $missingIds as $id ) {
2559 $status->error( 'undelete-missing-filearchive', $id );
2562 // Remove missing files from batch, so we don't get errors when undeleting them
2563 $storeBatch = $this->removeNonexistentFiles( $storeBatch );
2565 // Run the store batch
2566 // Use the OVERWRITE_SAME flag to smooth over a common error
2567 $storeStatus = $this->file
->repo
->storeBatch( $storeBatch, FileRepo
::OVERWRITE_SAME
);
2568 $status->merge( $storeStatus );
2570 if ( !$status->isGood() ) {
2571 // Even if some files could be copied, fail entirely as that is the
2572 // easiest thing to do without data loss
2573 $this->cleanupFailedBatch( $storeStatus, $storeBatch );
2574 $status->ok
= false;
2575 $this->file
->unlock();
2580 // Run the DB updates
2581 // Because we have locked the image row, key conflicts should be rare.
2582 // If they do occur, we can roll back the transaction at this time with
2583 // no data loss, but leaving unregistered files scattered throughout the
2585 // This is not ideal, which is why it's important to lock the image row.
2586 if ( $insertCurrent ) {
2587 $dbw->insert( 'image', $insertCurrent, __METHOD__
);
2590 if ( $insertBatch ) {
2591 $dbw->insert( 'oldimage', $insertBatch, __METHOD__
);
2595 $dbw->delete( 'filearchive',
2596 array( 'fa_id' => $deleteIds ),
2600 // If store batch is empty (all files are missing), deletion is to be considered successful
2601 if ( $status->successCount
> 0 ||
!$storeBatch ) {
2603 wfDebug( __METHOD__
. " restored {$status->successCount} items, creating a new current\n" );
2605 DeferredUpdates
::addUpdate( SiteStatsUpdate
::factory( array( 'images' => 1 ) ) );
2607 $this->file
->purgeEverything();
2609 wfDebug( __METHOD__
. " restored {$status->successCount} as archived versions\n" );
2610 $this->file
->purgeDescription();
2611 $this->file
->purgeHistory();
2615 $this->file
->unlock();
2621 * Removes non-existent files from a store batch.
2622 * @param array $triplets
2625 function removeNonexistentFiles( $triplets ) {
2626 $files = $filteredTriplets = array();
2627 foreach ( $triplets as $file ) {
2628 $files[$file[0]] = $file[0];
2631 $result = $this->file
->repo
->fileExistsBatch( $files );
2633 foreach ( $triplets as $file ) {
2634 if ( $result[$file[0]] ) {
2635 $filteredTriplets[] = $file;
2639 return $filteredTriplets;
2643 * Removes non-existent files from a cleanup batch.
2644 * @param array $batch
2647 function removeNonexistentFromCleanup( $batch ) {
2648 $files = $newBatch = array();
2649 $repo = $this->file
->repo
;
2651 foreach ( $batch as $file ) {
2652 $files[$file] = $repo->getVirtualUrl( 'deleted' ) . '/' .
2653 rawurlencode( $repo->getDeletedHashPath( $file ) . $file );
2656 $result = $repo->fileExistsBatch( $files );
2658 foreach ( $batch as $file ) {
2659 if ( $result[$file] ) {
2660 $newBatch[] = $file;
2668 * Delete unused files in the deleted zone.
2669 * This should be called from outside the transaction in which execute() was called.
2670 * @return FileRepoStatus
2672 function cleanup() {
2673 if ( !$this->cleanupBatch
) {
2674 return $this->file
->repo
->newGood();
2677 $this->cleanupBatch
= $this->removeNonexistentFromCleanup( $this->cleanupBatch
);
2679 $status = $this->file
->repo
->cleanupDeletedBatch( $this->cleanupBatch
);
2685 * Cleanup a failed batch. The batch was only partially successful, so
2686 * rollback by removing all items that were succesfully copied.
2688 * @param Status $storeStatus
2689 * @param array $storeBatch
2691 function cleanupFailedBatch( $storeStatus, $storeBatch ) {
2692 $cleanupBatch = array();
2694 foreach ( $storeStatus->success
as $i => $success ) {
2695 // Check if this item of the batch was successfully copied
2697 // Item was successfully copied and needs to be removed again
2698 // Extract ($dstZone, $dstRel) from the batch
2699 $cleanupBatch[] = array( $storeBatch[$i][1], $storeBatch[$i][2] );
2702 $this->file
->repo
->cleanupBatch( $cleanupBatch );
2706 # ------------------------------------------------------------------------------
2709 * Helper class for file movement
2710 * @ingroup FileAbstraction
2712 class LocalFileMoveBatch
{
2713 /** @var LocalFile */
2723 protected $oldCount;
2727 /** @var DatabaseBase */
2732 * @param Title $target
2734 function __construct( File
$file, Title
$target ) {
2735 $this->file
= $file;
2736 $this->target
= $target;
2737 $this->oldHash
= $this->file
->repo
->getHashPath( $this->file
->getName() );
2738 $this->newHash
= $this->file
->repo
->getHashPath( $this->target
->getDBkey() );
2739 $this->oldName
= $this->file
->getName();
2740 $this->newName
= $this->file
->repo
->getNameFromTitle( $this->target
);
2741 $this->oldRel
= $this->oldHash
. $this->oldName
;
2742 $this->newRel
= $this->newHash
. $this->newName
;
2743 $this->db
= $file->getRepo()->getMasterDb();
2747 * Add the current image to the batch
2749 function addCurrent() {
2750 $this->cur
= array( $this->oldRel
, $this->newRel
);
2754 * Add the old versions of the image to the batch
2755 * @return array List of archive names from old versions
2757 function addOlds() {
2758 $archiveBase = 'archive';
2759 $this->olds
= array();
2760 $this->oldCount
= 0;
2761 $archiveNames = array();
2763 $result = $this->db
->select( 'oldimage',
2764 array( 'oi_archive_name', 'oi_deleted' ),
2765 array( 'oi_name' => $this->oldName
),
2769 foreach ( $result as $row ) {
2770 $archiveNames[] = $row->oi_archive_name
;
2771 $oldName = $row->oi_archive_name
;
2772 $bits = explode( '!', $oldName, 2 );
2774 if ( count( $bits ) != 2 ) {
2775 wfDebug( "Old file name missing !: '$oldName' \n" );
2779 list( $timestamp, $filename ) = $bits;
2781 if ( $this->oldName
!= $filename ) {
2782 wfDebug( "Old file name doesn't match: '$oldName' \n" );
2788 // Do we want to add those to oldCount?
2789 if ( $row->oi_deleted
& File
::DELETED_FILE
) {
2793 $this->olds
[] = array(
2794 "{$archiveBase}/{$this->oldHash}{$oldName}",
2795 "{$archiveBase}/{$this->newHash}{$timestamp}!{$this->newName}"
2799 return $archiveNames;
2804 * @return FileRepoStatus
2806 function execute() {
2807 $repo = $this->file
->repo
;
2808 $status = $repo->newGood();
2810 $triplets = $this->getMoveTriplets();
2811 $triplets = $this->removeNonexistentFiles( $triplets );
2812 $destFile = wfLocalFile( $this->target
);
2814 $this->file
->lock(); // begin
2815 $destFile->lock(); // quickly fail if destination is not available
2816 // Rename the file versions metadata in the DB.
2817 // This implicitly locks the destination file, which avoids race conditions.
2818 // If we moved the files from A -> C before DB updates, another process could
2819 // move files from B -> C at this point, causing storeBatch() to fail and thus
2820 // cleanupTarget() to trigger. It would delete the C files and cause data loss.
2821 $statusDb = $this->doDBUpdates();
2822 if ( !$statusDb->isGood() ) {
2823 $this->file
->unlockAndRollback();
2824 $statusDb->ok
= false;
2828 wfDebugLog( 'imagemove', "Renamed {$this->file->getName()} in database: " .
2829 "{$statusDb->successCount} successes, {$statusDb->failCount} failures" );
2831 // Copy the files into their new location.
2832 // If a prior process fataled copying or cleaning up files we tolerate any
2833 // of the existing files if they are identical to the ones being stored.
2834 $statusMove = $repo->storeBatch( $triplets, FileRepo
::OVERWRITE_SAME
);
2835 wfDebugLog( 'imagemove', "Moved files for {$this->file->getName()}: " .
2836 "{$statusMove->successCount} successes, {$statusMove->failCount} failures" );
2837 if ( !$statusMove->isGood() ) {
2838 // Delete any files copied over (while the destination is still locked)
2839 $this->cleanupTarget( $triplets );
2840 $this->file
->unlockAndRollback(); // unlocks the destination
2841 wfDebugLog( 'imagemove', "Error in moving files: " . $statusMove->getWikiText() );
2842 $statusMove->ok
= false;
2846 $destFile->unlock();
2847 $this->file
->unlock(); // done
2849 // Everything went ok, remove the source files
2850 $this->cleanupSource( $triplets );
2852 $status->merge( $statusDb );
2853 $status->merge( $statusMove );
2859 * Do the database updates and return a new FileRepoStatus indicating how
2860 * many rows where updated.
2862 * @return FileRepoStatus
2864 function doDBUpdates() {
2865 $repo = $this->file
->repo
;
2866 $status = $repo->newGood();
2869 // Update current image
2872 array( 'img_name' => $this->newName
),
2873 array( 'img_name' => $this->oldName
),
2877 if ( $dbw->affectedRows() ) {
2878 $status->successCount++
;
2880 $status->failCount++
;
2881 $status->fatal( 'imageinvalidfilename' );
2886 // Update old images
2890 'oi_name' => $this->newName
,
2891 'oi_archive_name = ' . $dbw->strreplace( 'oi_archive_name',
2892 $dbw->addQuotes( $this->oldName
), $dbw->addQuotes( $this->newName
) ),
2894 array( 'oi_name' => $this->oldName
),
2898 $affected = $dbw->affectedRows();
2899 $total = $this->oldCount
;
2900 $status->successCount +
= $affected;
2901 // Bug 34934: $total is based on files that actually exist.
2902 // There may be more DB rows than such files, in which case $affected
2903 // can be greater than $total. We use max() to avoid negatives here.
2904 $status->failCount +
= max( 0, $total - $affected );
2905 if ( $status->failCount
) {
2906 $status->error( 'imageinvalidfilename' );
2913 * Generate triplets for FileRepo::storeBatch().
2916 function getMoveTriplets() {
2917 $moves = array_merge( array( $this->cur
), $this->olds
);
2918 $triplets = array(); // The format is: (srcUrl, destZone, destUrl)
2920 foreach ( $moves as $move ) {
2921 // $move: (oldRelativePath, newRelativePath)
2922 $srcUrl = $this->file
->repo
->getVirtualUrl() . '/public/' . rawurlencode( $move[0] );
2923 $triplets[] = array( $srcUrl, 'public', $move[1] );
2926 "Generated move triplet for {$this->file->getName()}: {$srcUrl} :: public :: {$move[1]}"
2934 * Removes non-existent files from move batch.
2935 * @param array $triplets
2938 function removeNonexistentFiles( $triplets ) {
2941 foreach ( $triplets as $file ) {
2942 $files[$file[0]] = $file[0];
2945 $result = $this->file
->repo
->fileExistsBatch( $files );
2946 $filteredTriplets = array();
2948 foreach ( $triplets as $file ) {
2949 if ( $result[$file[0]] ) {
2950 $filteredTriplets[] = $file;
2952 wfDebugLog( 'imagemove', "File {$file[0]} does not exist" );
2956 return $filteredTriplets;
2960 * Cleanup a partially moved array of triplets by deleting the target
2961 * files. Called if something went wrong half way.
2963 function cleanupTarget( $triplets ) {
2964 // Create dest pairs from the triplets
2966 foreach ( $triplets as $triplet ) {
2967 // $triplet: (old source virtual URL, dst zone, dest rel)
2968 $pairs[] = array( $triplet[1], $triplet[2] );
2971 $this->file
->repo
->cleanupBatch( $pairs );
2975 * Cleanup a fully moved array of triplets by deleting the source files.
2976 * Called at the end of the move process if everything else went ok.
2978 function cleanupSource( $triplets ) {
2979 // Create source file names from the triplets
2981 foreach ( $triplets as $triplet ) {
2982 $files[] = $triplet[0];
2985 $this->file
->repo
->cleanupBatch( $files );