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 $decoded['metadata'] = $this->repo
->getSlaveDB()->decodeBlob( $decoded['metadata'] );
501 if ( empty( $decoded['major_mime'] ) ) {
502 $decoded['mime'] = 'unknown/unknown';
504 if ( !$decoded['minor_mime'] ) {
505 $decoded['minor_mime'] = 'unknown';
507 $decoded['mime'] = $decoded['major_mime'] . '/' . $decoded['minor_mime'];
510 # Trim zero padding from char/binary field
511 $decoded['sha1'] = rtrim( $decoded['sha1'], "\0" );
517 * Load file metadata from a DB result row
520 * @param string $prefix
522 function loadFromRow( $row, $prefix = 'img_' ) {
523 $this->dataLoaded
= true;
524 $this->extraDataLoaded
= true;
526 $array = $this->decodeRow( $row, $prefix );
528 foreach ( $array as $name => $value ) {
529 $this->$name = $value;
532 $this->fileExists
= true;
533 $this->maybeUpgradeRow();
537 * Load file metadata from cache or DB, unless already loaded
540 function load( $flags = 0 ) {
541 if ( !$this->dataLoaded
) {
542 if ( !$this->loadFromCache() ) {
543 $this->loadFromDB( $this->isVolatile() ?
0 : self
::LOAD_VIA_SLAVE
);
544 $this->saveToCache();
546 $this->dataLoaded
= true;
548 if ( ( $flags & self
::LOAD_ALL
) && !$this->extraDataLoaded
) {
549 $this->loadExtraFromDB();
554 * Upgrade a row if it needs it
556 function maybeUpgradeRow() {
557 global $wgUpdateCompatibleMetadata;
558 if ( wfReadOnly() ) {
562 if ( is_null( $this->media_type
) ||
563 $this->mime
== 'image/svg'
566 $this->upgraded
= true;
568 $handler = $this->getHandler();
570 $validity = $handler->isMetadataValid( $this, $this->getMetadata() );
571 if ( $validity === MediaHandler
::METADATA_BAD
572 ||
( $validity === MediaHandler
::METADATA_COMPATIBLE
&& $wgUpdateCompatibleMetadata )
575 $this->upgraded
= true;
581 function getUpgraded() {
582 return $this->upgraded
;
586 * Fix assorted version-related problems with the image row by reloading it from the file
588 function upgradeRow() {
589 wfProfileIn( __METHOD__
);
591 $this->lock(); // begin
593 $this->loadFromFile();
595 # Don't destroy file info of missing files
596 if ( !$this->fileExists
) {
597 wfDebug( __METHOD__
. ": file does not exist, aborting\n" );
598 wfProfileOut( __METHOD__
);
603 $dbw = $this->repo
->getMasterDB();
604 list( $major, $minor ) = self
::splitMime( $this->mime
);
606 if ( wfReadOnly() ) {
607 wfProfileOut( __METHOD__
);
611 wfDebug( __METHOD__
. ': upgrading ' . $this->getName() . " to the current schema\n" );
613 $dbw->update( 'image',
615 'img_size' => $this->size
, // sanity
616 'img_width' => $this->width
,
617 'img_height' => $this->height
,
618 'img_bits' => $this->bits
,
619 'img_media_type' => $this->media_type
,
620 'img_major_mime' => $major,
621 'img_minor_mime' => $minor,
622 'img_metadata' => $dbw->encodeBlob( $this->metadata
),
623 'img_sha1' => $this->sha1
,
625 array( 'img_name' => $this->getName() ),
629 $this->saveToCache();
631 $this->unlock(); // done
633 wfProfileOut( __METHOD__
);
637 * Set properties in this object to be equal to those given in the
638 * associative array $info. Only cacheable fields can be set.
639 * All fields *must* be set in $info except for getLazyCacheFields().
641 * If 'mime' is given, it will be split into major_mime/minor_mime.
642 * If major_mime/minor_mime are given, $this->mime will also be set.
646 function setProps( $info ) {
647 $this->dataLoaded
= true;
648 $fields = $this->getCacheFields( '' );
649 $fields[] = 'fileExists';
651 foreach ( $fields as $field ) {
652 if ( isset( $info[$field] ) ) {
653 $this->$field = $info[$field];
657 // Fix up mime fields
658 if ( isset( $info['major_mime'] ) ) {
659 $this->mime
= "{$info['major_mime']}/{$info['minor_mime']}";
660 } elseif ( isset( $info['mime'] ) ) {
661 $this->mime
= $info['mime'];
662 list( $this->major_mime
, $this->minor_mime
) = self
::splitMime( $this->mime
);
666 /** splitMime inherited */
667 /** getName inherited */
668 /** getTitle inherited */
669 /** getURL inherited */
670 /** getViewURL inherited */
671 /** getPath inherited */
672 /** isVisible inhereted */
677 function isMissing() {
678 if ( $this->missing
=== null ) {
679 list( $fileExists ) = $this->repo
->fileExists( $this->getVirtualUrl() );
680 $this->missing
= !$fileExists;
683 return $this->missing
;
687 * Return the width of the image
692 public function getWidth( $page = 1 ) {
695 if ( $this->isMultipage() ) {
696 $handler = $this->getHandler();
700 $dim = $handler->getPageDimensions( $this, $page );
702 return $dim['width'];
704 // For non-paged media, the false goes through an
705 // intval, turning failure into 0, so do same here.
714 * Return the height of the image
719 public function getHeight( $page = 1 ) {
722 if ( $this->isMultipage() ) {
723 $handler = $this->getHandler();
727 $dim = $handler->getPageDimensions( $this, $page );
729 return $dim['height'];
731 // For non-paged media, the false goes through an
732 // intval, turning failure into 0, so do same here.
736 return $this->height
;
741 * Returns ID or name of user who uploaded the file
743 * @param string $type 'text' or 'id'
746 function getUser( $type = 'text' ) {
749 if ( $type == 'text' ) {
750 return $this->user_text
;
751 } elseif ( $type == 'id' ) {
757 * Get handler-specific metadata
760 function getMetadata() {
761 $this->load( self
::LOAD_ALL
); // large metadata is loaded in another step
762 return $this->metadata
;
768 function getBitDepth() {
775 * Returns the size of the image file, in bytes
778 public function getSize() {
785 * Returns the mime type of the file.
788 function getMimeType() {
795 * Returns the type of the media in the file.
796 * Use the value returned by this function with the MEDIATYPE_xxx constants.
799 function getMediaType() {
802 return $this->media_type
;
805 /** canRender inherited */
806 /** mustRender inherited */
807 /** allowInlineDisplay inherited */
808 /** isSafeFile inherited */
809 /** isTrustedFile inherited */
812 * Returns true if the file exists on disk.
813 * @return bool Whether file exist on disk.
815 public function exists() {
818 return $this->fileExists
;
821 /** getTransformScript inherited */
822 /** getUnscaledThumb inherited */
823 /** thumbName inherited */
824 /** createThumb inherited */
825 /** transform inherited */
827 /** getHandler inherited */
828 /** iconThumb inherited */
829 /** getLastError inherited */
832 * Get all thumbnail names previously generated for this file
833 * @param string|bool $archiveName Name of an archive file, default false
834 * @return array first element is the base dir, then files in that base dir.
836 function getThumbnails( $archiveName = false ) {
837 if ( $archiveName ) {
838 $dir = $this->getArchiveThumbPath( $archiveName );
840 $dir = $this->getThumbPath();
843 $backend = $this->repo
->getBackend();
844 $files = array( $dir );
846 $iterator = $backend->getFileList( array( 'dir' => $dir ) );
847 foreach ( $iterator as $file ) {
850 } catch ( FileBackendError
$e ) {
851 } // suppress (bug 54674)
857 * Refresh metadata in memcached, but don't touch thumbnails or squid
859 function purgeMetadataCache() {
861 $this->saveToCache();
862 $this->purgeHistory();
866 * Purge the shared history (OldLocalFile) cache.
868 * @note This used to purge old thumbnails as well.
870 function purgeHistory() {
873 $hashedName = md5( $this->getName() );
874 $oldKey = $this->repo
->getSharedCacheKey( 'oldfile', $hashedName );
877 $wgMemc->delete( $oldKey );
882 * Delete all previously generated thumbnails, refresh metadata in memcached and purge the squid.
884 * @param array $options An array potentially with the key forThumbRefresh.
886 * @note This used to purge old thumbnails by default as well, but doesn't anymore.
888 function purgeCache( $options = array() ) {
889 wfProfileIn( __METHOD__
);
890 // Refresh metadata cache
891 $this->purgeMetadataCache();
894 $this->purgeThumbnails( $options );
896 // Purge squid cache for this file
897 SquidUpdate
::purge( array( $this->getURL() ) );
898 wfProfileOut( __METHOD__
);
902 * Delete cached transformed files for an archived version only.
903 * @param string $archiveName Name of the archived file
905 function purgeOldThumbnails( $archiveName ) {
907 wfProfileIn( __METHOD__
);
909 // Get a list of old thumbnails and URLs
910 $files = $this->getThumbnails( $archiveName );
912 // Purge any custom thumbnail caches
913 wfRunHooks( 'LocalFilePurgeThumbnails', array( $this, $archiveName ) );
915 $dir = array_shift( $files );
916 $this->purgeThumbList( $dir, $files );
921 foreach ( $files as $file ) {
922 $urls[] = $this->getArchiveThumbUrl( $archiveName, $file );
924 SquidUpdate
::purge( $urls );
927 wfProfileOut( __METHOD__
);
931 * Delete cached transformed files for the current version only.
933 function purgeThumbnails( $options = array() ) {
935 wfProfileIn( __METHOD__
);
938 $files = $this->getThumbnails();
939 // Always purge all files from squid regardless of handler filters
942 foreach ( $files as $file ) {
943 $urls[] = $this->getThumbUrl( $file );
945 array_shift( $urls ); // don't purge directory
948 // Give media handler a chance to filter the file purge list
949 if ( !empty( $options['forThumbRefresh'] ) ) {
950 $handler = $this->getHandler();
952 $handler->filterThumbnailPurgeList( $files, $options );
956 // Purge any custom thumbnail caches
957 wfRunHooks( 'LocalFilePurgeThumbnails', array( $this, false ) );
959 $dir = array_shift( $files );
960 $this->purgeThumbList( $dir, $files );
964 SquidUpdate
::purge( $urls );
967 wfProfileOut( __METHOD__
);
971 * Delete a list of thumbnails visible at urls
972 * @param string $dir Base dir of the files.
973 * @param array $files Array of strings: relative filenames (to $dir)
975 protected function purgeThumbList( $dir, $files ) {
976 $fileListDebug = strtr(
977 var_export( $files, true ),
980 wfDebug( __METHOD__
. ": $fileListDebug\n" );
982 $purgeList = array();
983 foreach ( $files as $file ) {
984 # Check that the base file name is part of the thumb name
985 # This is a basic sanity check to avoid erasing unrelated directories
986 if ( strpos( $file, $this->getName() ) !== false
987 ||
strpos( $file, "-thumbnail" ) !== false // "short" thumb name
989 $purgeList[] = "{$dir}/{$file}";
993 # Delete the thumbnails
994 $this->repo
->quickPurgeBatch( $purgeList );
995 # Clear out the thumbnail directory if empty
996 $this->repo
->quickCleanDir( $dir );
999 /** purgeDescription inherited */
1000 /** purgeEverything inherited */
1003 * @param int $limit Optional: Limit to number of results
1004 * @param int $start Optional: Timestamp, start from
1005 * @param int $end Optional: Timestamp, end at
1009 function getHistory( $limit = null, $start = null, $end = null, $inc = true ) {
1010 $dbr = $this->repo
->getSlaveDB();
1011 $tables = array( 'oldimage' );
1012 $fields = OldLocalFile
::selectFields();
1013 $conds = $opts = $join_conds = array();
1014 $eq = $inc ?
'=' : '';
1015 $conds[] = "oi_name = " . $dbr->addQuotes( $this->title
->getDBkey() );
1018 $conds[] = "oi_timestamp <$eq " . $dbr->addQuotes( $dbr->timestamp( $start ) );
1022 $conds[] = "oi_timestamp >$eq " . $dbr->addQuotes( $dbr->timestamp( $end ) );
1026 $opts['LIMIT'] = $limit;
1029 // Search backwards for time > x queries
1030 $order = ( !$start && $end !== null ) ?
'ASC' : 'DESC';
1031 $opts['ORDER BY'] = "oi_timestamp $order";
1032 $opts['USE INDEX'] = array( 'oldimage' => 'oi_name_timestamp' );
1034 wfRunHooks( 'LocalFile::getHistory', array( &$this, &$tables, &$fields,
1035 &$conds, &$opts, &$join_conds ) );
1037 $res = $dbr->select( $tables, $fields, $conds, __METHOD__
, $opts, $join_conds );
1040 foreach ( $res as $row ) {
1041 $r[] = $this->repo
->newFileFromRow( $row );
1044 if ( $order == 'ASC' ) {
1045 $r = array_reverse( $r ); // make sure it ends up descending
1052 * Returns the history of this file, line by line.
1053 * starts with current version, then old versions.
1054 * uses $this->historyLine to check which line to return:
1055 * 0 return line for current version
1056 * 1 query for old versions, return first one
1057 * 2, ... return next old version from above query
1060 public function nextHistoryLine() {
1061 # Polymorphic function name to distinguish foreign and local fetches
1062 $fname = get_class( $this ) . '::' . __FUNCTION__
;
1064 $dbr = $this->repo
->getSlaveDB();
1066 if ( $this->historyLine
== 0 ) { // called for the first time, return line from cur
1067 $this->historyRes
= $dbr->select( 'image',
1070 "'' AS oi_archive_name",
1074 array( 'img_name' => $this->title
->getDBkey() ),
1078 if ( 0 == $dbr->numRows( $this->historyRes
) ) {
1079 $this->historyRes
= null;
1083 } elseif ( $this->historyLine
== 1 ) {
1084 $this->historyRes
= $dbr->select( 'oldimage', '*',
1085 array( 'oi_name' => $this->title
->getDBkey() ),
1087 array( 'ORDER BY' => 'oi_timestamp DESC' )
1090 $this->historyLine++
;
1092 return $dbr->fetchObject( $this->historyRes
);
1096 * Reset the history pointer to the first element of the history
1098 public function resetHistory() {
1099 $this->historyLine
= 0;
1101 if ( !is_null( $this->historyRes
) ) {
1102 $this->historyRes
= null;
1106 /** getHashPath inherited */
1107 /** getRel inherited */
1108 /** getUrlRel inherited */
1109 /** getArchiveRel inherited */
1110 /** getArchivePath inherited */
1111 /** getThumbPath inherited */
1112 /** getArchiveUrl inherited */
1113 /** getThumbUrl inherited */
1114 /** getArchiveVirtualUrl inherited */
1115 /** getThumbVirtualUrl inherited */
1116 /** isHashed inherited */
1119 * Upload a file and record it in the DB
1120 * @param string $srcPath Source storage path, virtual URL, or filesystem path
1121 * @param string $comment Upload description
1122 * @param string $pageText Text to use for the new description page,
1123 * if a new description page is created
1124 * @param int|bool $flags Flags for publish()
1125 * @param array|bool $props File properties, if known. This can be used to
1126 * reduce the upload time when uploading virtual URLs for which the file
1127 * info is already known
1128 * @param string|bool $timestamp Timestamp for img_timestamp, or false to use the
1130 * @param User|null $user User object or null to use $wgUser
1132 * @return FileRepoStatus On success, the value member contains the
1133 * archive name, or an empty string if it was a new file.
1135 function upload( $srcPath, $comment, $pageText, $flags = 0, $props = false,
1136 $timestamp = false, $user = null
1140 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1141 return $this->readOnlyFatalStatus();
1145 wfProfileIn( __METHOD__
. '-getProps' );
1146 if ( $this->repo
->isVirtualUrl( $srcPath )
1147 || FileBackend
::isStoragePath( $srcPath )
1149 $props = $this->repo
->getFileProps( $srcPath );
1151 $props = FSFile
::getPropsFromPath( $srcPath );
1153 wfProfileOut( __METHOD__
. '-getProps' );
1157 $handler = MediaHandler
::getHandler( $props['mime'] );
1159 $options['headers'] = $handler->getStreamHeaders( $props['metadata'] );
1161 $options['headers'] = array();
1164 // Trim spaces on user supplied text
1165 $comment = trim( $comment );
1167 // Truncate nicely or the DB will do it for us
1168 // non-nicely (dangling multi-byte chars, non-truncated version in cache).
1169 $comment = $wgContLang->truncate( $comment, 255 );
1170 $this->lock(); // begin
1171 $status = $this->publish( $srcPath, $flags, $options );
1173 if ( $status->successCount
>= 2 ) {
1174 // There will be a copy+(one of move,copy,store).
1175 // The first succeeding does not commit us to updating the DB
1176 // since it simply copied the current version to a timestamped file name.
1177 // It is only *preferable* to avoid leaving such files orphaned.
1178 // Once the second operation goes through, then the current version was
1179 // updated and we must therefore update the DB too.
1180 if ( !$this->recordUpload2( $status->value
, $comment, $pageText, $props, $timestamp, $user ) ) {
1181 $status->fatal( 'filenotfound', $srcPath );
1185 $this->unlock(); // done
1191 * Record a file upload in the upload log and the image table
1192 * @param string $oldver
1193 * @param string $desc
1194 * @param string $license
1195 * @param string $copyStatus
1196 * @param string $source
1197 * @param bool $watch
1198 * @param string|bool $timestamp
1199 * @param User|null $user User object or null to use $wgUser
1202 function recordUpload( $oldver, $desc, $license = '', $copyStatus = '', $source = '',
1203 $watch = false, $timestamp = false, User
$user = null ) {
1209 $pageText = SpecialUpload
::getInitialPageText( $desc, $license, $copyStatus, $source );
1211 if ( !$this->recordUpload2( $oldver, $desc, $pageText, false, $timestamp, $user ) ) {
1216 $user->addWatch( $this->getTitle() );
1223 * Record a file upload in the upload log and the image table
1224 * @param string $oldver
1225 * @param string $comment
1226 * @param string $pageText
1227 * @param bool|array $props
1228 * @param string|bool $timestamp
1229 * @param null|User $user
1232 function recordUpload2( $oldver, $comment, $pageText, $props = false, $timestamp = false,
1235 wfProfileIn( __METHOD__
);
1237 if ( is_null( $user ) ) {
1242 $dbw = $this->repo
->getMasterDB();
1243 $dbw->begin( __METHOD__
);
1246 wfProfileIn( __METHOD__
. '-getProps' );
1247 $props = $this->repo
->getFileProps( $this->getVirtualUrl() );
1248 wfProfileOut( __METHOD__
. '-getProps' );
1251 if ( $timestamp === false ) {
1252 // Use FOR UPDATE to ignore any transaction snapshotting
1253 $ltimestamp = $dbw->selectField( 'image', 'img_timestamp',
1254 array( 'img_name' => $this->getName() ), __METHOD__
, array( 'FOR UPDATE' ) );
1255 $ltime = $ltimestamp ?
wfTimestamp( TS_UNIX
, $ltimestamp ) : false;
1257 // Avoid a timestamp that is not newer than the last version
1258 if ( $ctime > $ltime ) {
1259 $timestamp = $dbw->timestamp( $ctime );
1261 sleep( 1 ); // fast enough uploads will go in to the future otherwise
1262 $timestamp = $dbw->timestamp( $ltime +
1 );
1266 $props['description'] = $comment;
1267 $props['user'] = $user->getId();
1268 $props['user_text'] = $user->getName();
1269 $props['timestamp'] = wfTimestamp( TS_MW
, $timestamp ); // DB -> TS_MW
1270 $this->setProps( $props );
1272 # Fail now if the file isn't there
1273 if ( !$this->fileExists
) {
1274 wfDebug( __METHOD__
. ": File " . $this->getRel() . " went missing!\n" );
1275 wfProfileOut( __METHOD__
);
1282 # Test to see if the row exists using INSERT IGNORE
1283 # This avoids race conditions by locking the row until the commit, and also
1284 # doesn't deadlock. SELECT FOR UPDATE causes a deadlock for every race condition.
1285 $dbw->insert( 'image',
1287 'img_name' => $this->getName(),
1288 'img_size' => $this->size
,
1289 'img_width' => intval( $this->width
),
1290 'img_height' => intval( $this->height
),
1291 'img_bits' => $this->bits
,
1292 'img_media_type' => $this->media_type
,
1293 'img_major_mime' => $this->major_mime
,
1294 'img_minor_mime' => $this->minor_mime
,
1295 'img_timestamp' => $timestamp,
1296 'img_description' => $comment,
1297 'img_user' => $user->getId(),
1298 'img_user_text' => $user->getName(),
1299 'img_metadata' => $dbw->encodeBlob( $this->metadata
),
1300 'img_sha1' => $this->sha1
1305 if ( $dbw->affectedRows() == 0 ) {
1306 # (bug 34993) Note: $oldver can be empty here, if the previous
1307 # version of the file was broken. Allow registration of the new
1308 # version to continue anyway, because that's better than having
1309 # an image that's not fixable by user operations.
1312 # Collision, this is an update of a file
1313 # Insert previous contents into oldimage
1314 $dbw->insertSelect( 'oldimage', 'image',
1316 'oi_name' => 'img_name',
1317 'oi_archive_name' => $dbw->addQuotes( $oldver ),
1318 'oi_size' => 'img_size',
1319 'oi_width' => 'img_width',
1320 'oi_height' => 'img_height',
1321 'oi_bits' => 'img_bits',
1322 'oi_timestamp' => 'img_timestamp',
1323 'oi_description' => 'img_description',
1324 'oi_user' => 'img_user',
1325 'oi_user_text' => 'img_user_text',
1326 'oi_metadata' => 'img_metadata',
1327 'oi_media_type' => 'img_media_type',
1328 'oi_major_mime' => 'img_major_mime',
1329 'oi_minor_mime' => 'img_minor_mime',
1330 'oi_sha1' => 'img_sha1'
1332 array( 'img_name' => $this->getName() ),
1336 # Update the current image row
1337 $dbw->update( 'image',
1339 'img_size' => $this->size
,
1340 'img_width' => intval( $this->width
),
1341 'img_height' => intval( $this->height
),
1342 'img_bits' => $this->bits
,
1343 'img_media_type' => $this->media_type
,
1344 'img_major_mime' => $this->major_mime
,
1345 'img_minor_mime' => $this->minor_mime
,
1346 'img_timestamp' => $timestamp,
1347 'img_description' => $comment,
1348 'img_user' => $user->getId(),
1349 'img_user_text' => $user->getName(),
1350 'img_metadata' => $dbw->encodeBlob( $this->metadata
),
1351 'img_sha1' => $this->sha1
1353 array( 'img_name' => $this->getName() ),
1357 # This is a new file, so update the image count
1358 DeferredUpdates
::addUpdate( SiteStatsUpdate
::factory( array( 'images' => 1 ) ) );
1361 $descTitle = $this->getTitle();
1362 $wikiPage = new WikiFilePage( $descTitle );
1363 $wikiPage->setFile( $this );
1366 $action = $reupload ?
'overwrite' : 'upload';
1368 $logEntry = new ManualLogEntry( 'upload', $action );
1369 $logEntry->setPerformer( $user );
1370 $logEntry->setComment( $comment );
1371 $logEntry->setTarget( $descTitle );
1373 // Allow people using the api to associate log entries with the upload.
1374 // Log has a timestamp, but sometimes different from upload timestamp.
1375 $logEntry->setParameters(
1377 'img_sha1' => $this->sha1
,
1378 'img_timestamp' => $timestamp,
1381 // Note we keep $logId around since during new image
1382 // creation, page doesn't exist yet, so log_page = 0
1383 // but we want it to point to the page we're making,
1384 // so we later modify the log entry.
1385 // For a similar reason, we avoid making an RC entry
1386 // now and wait until the page exists.
1387 $logId = $logEntry->insert();
1389 $exists = $descTitle->exists();
1391 // Page exists, do RC entry now (otherwise we wait for later).
1392 $logEntry->publish( $logId );
1394 wfProfileIn( __METHOD__
. '-edit' );
1397 # Create a null revision
1398 $latest = $descTitle->getLatestRevID();
1399 $editSummary = LogFormatter
::newFromEntry( $logEntry )->getPlainActionText();
1401 $nullRevision = Revision
::newNullRevision(
1403 $descTitle->getArticleID(),
1408 if ( !is_null( $nullRevision ) ) {
1409 $nullRevision->insertOn( $dbw );
1411 wfRunHooks( 'NewRevisionFromEditComplete', array( $wikiPage, $nullRevision, $latest, $user ) );
1412 $wikiPage->updateRevisionOn( $dbw, $nullRevision );
1416 # Commit the transaction now, in case something goes wrong later
1417 # The most important thing is that files don't get lost, especially archives
1418 # NOTE: once we have support for nested transactions, the commit may be moved
1419 # to after $wikiPage->doEdit has been called.
1420 $dbw->commit( __METHOD__
);
1423 # We shall not saveToCache before the commit since otherwise
1424 # in case of a rollback there is an usable file from memcached
1425 # which in fact doesn't really exist (bug 24978)
1426 $this->saveToCache();
1429 # Invalidate the cache for the description page
1430 $descTitle->invalidateCache();
1431 $descTitle->purgeSquid();
1433 # New file; create the description page.
1434 # There's already a log entry, so don't make a second RC entry
1435 # Squid and file cache for the description page are purged by doEditContent.
1436 $content = ContentHandler
::makeContent( $pageText, $descTitle );
1437 $status = $wikiPage->doEditContent(
1440 EDIT_NEW | EDIT_SUPPRESS_RC
,
1445 $dbw->begin( __METHOD__
); // XXX; doEdit() uses a transaction
1446 // Now that the page exists, make an RC entry.
1447 $logEntry->publish( $logId );
1448 if ( isset( $status->value
['revision'] ) ) {
1449 $dbw->update( 'logging',
1450 array( 'log_page' => $status->value
['revision']->getPage() ),
1451 array( 'log_id' => $logId ),
1455 $dbw->commit( __METHOD__
); // commit before anything bad can happen
1458 wfProfileOut( __METHOD__
. '-edit' );
1461 # Delete old thumbnails
1462 wfProfileIn( __METHOD__
. '-purge' );
1463 $this->purgeThumbnails();
1464 wfProfileOut( __METHOD__
. '-purge' );
1466 # Remove the old file from the squid cache
1467 SquidUpdate
::purge( array( $this->getURL() ) );
1470 # Hooks, hooks, the magic of hooks...
1471 wfProfileIn( __METHOD__
. '-hooks' );
1472 wfRunHooks( 'FileUpload', array( $this, $reupload, $descTitle->exists() ) );
1473 wfProfileOut( __METHOD__
. '-hooks' );
1475 # Invalidate cache for all pages using this file
1476 $update = new HTMLCacheUpdate( $this->getTitle(), 'imagelinks' );
1477 $update->doUpdate();
1479 LinksUpdate
::queueRecursiveJobsForTable( $this->getTitle(), 'imagelinks' );
1482 wfProfileOut( __METHOD__
);
1488 * Move or copy a file to its public location. If a file exists at the
1489 * destination, move it to an archive. Returns a FileRepoStatus object with
1490 * the archive name in the "value" member on success.
1492 * The archive name should be passed through to recordUpload for database
1495 * @param string $srcPath Local filesystem path to the source image
1496 * @param int $flags A bitwise combination of:
1497 * File::DELETE_SOURCE Delete the source file, i.e. move rather than copy
1498 * @param array $options Optional additional parameters
1499 * @return FileRepoStatus On success, the value member contains the
1500 * archive name, or an empty string if it was a new file.
1502 function publish( $srcPath, $flags = 0, array $options = array() ) {
1503 return $this->publishTo( $srcPath, $this->getRel(), $flags, $options );
1507 * Move or copy a file to a specified location. Returns a FileRepoStatus
1508 * object with the archive name in the "value" member on success.
1510 * The archive name should be passed through to recordUpload for database
1513 * @param string $srcPath Local filesystem path to the source image
1514 * @param string $dstRel Target relative path
1515 * @param int $flags A bitwise combination of:
1516 * File::DELETE_SOURCE Delete the source file, i.e. move rather than copy
1517 * @param array $options Optional additional parameters
1518 * @return FileRepoStatus On success, the value member contains the
1519 * archive name, or an empty string if it was a new file.
1521 function publishTo( $srcPath, $dstRel, $flags = 0, array $options = array() ) {
1522 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1523 return $this->readOnlyFatalStatus();
1526 $this->lock(); // begin
1528 $archiveName = wfTimestamp( TS_MW
) . '!' . $this->getName();
1529 $archiveRel = 'archive/' . $this->getHashPath() . $archiveName;
1530 $flags = $flags & File
::DELETE_SOURCE ? LocalRepo
::DELETE_SOURCE
: 0;
1531 $status = $this->repo
->publish( $srcPath, $dstRel, $archiveRel, $flags, $options );
1533 if ( $status->value
== 'new' ) {
1534 $status->value
= '';
1536 $status->value
= $archiveName;
1539 $this->unlock(); // done
1544 /** getLinksTo inherited */
1545 /** getExifData inherited */
1546 /** isLocal inherited */
1547 /** wasDeleted inherited */
1550 * Move file to the new title
1552 * Move current, old version and all thumbnails
1553 * to the new filename. Old file is deleted.
1555 * Cache purging is done; checks for validity
1556 * and logging are caller's responsibility
1558 * @param Title $target New file name
1559 * @return FileRepoStatus
1561 function move( $target ) {
1562 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1563 return $this->readOnlyFatalStatus();
1566 wfDebugLog( 'imagemove', "Got request to move {$this->name} to " . $target->getText() );
1567 $batch = new LocalFileMoveBatch( $this, $target );
1569 $this->lock(); // begin
1570 $batch->addCurrent();
1571 $archiveNames = $batch->addOlds();
1572 $status = $batch->execute();
1573 $this->unlock(); // done
1575 wfDebugLog( 'imagemove', "Finished moving {$this->name}" );
1577 // Purge the source and target files...
1578 $oldTitleFile = wfLocalFile( $this->title
);
1579 $newTitleFile = wfLocalFile( $target );
1580 // Hack: the lock()/unlock() pair is nested in a transaction so the locking is not
1581 // tied to BEGIN/COMMIT. To avoid slow purges in the transaction, move them outside.
1582 $this->getRepo()->getMasterDB()->onTransactionIdle(
1583 function () use ( $oldTitleFile, $newTitleFile, $archiveNames ) {
1584 $oldTitleFile->purgeEverything();
1585 foreach ( $archiveNames as $archiveName ) {
1586 $oldTitleFile->purgeOldThumbnails( $archiveName );
1588 $newTitleFile->purgeEverything();
1592 if ( $status->isOK() ) {
1593 // Now switch the object
1594 $this->title
= $target;
1595 // Force regeneration of the name and hashpath
1596 unset( $this->name
);
1597 unset( $this->hashPath
);
1604 * Delete all versions of the file.
1606 * Moves the files into an archive directory (or deletes them)
1607 * and removes the database rows.
1609 * Cache purging is done; logging is caller's responsibility.
1611 * @param string $reason
1612 * @param bool $suppress
1613 * @param User|null $user
1614 * @return FileRepoStatus
1616 function delete( $reason, $suppress = false, $user = null ) {
1617 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1618 return $this->readOnlyFatalStatus();
1621 $batch = new LocalFileDeleteBatch( $this, $reason, $suppress, $user );
1623 $this->lock(); // begin
1624 $batch->addCurrent();
1625 # Get old version relative paths
1626 $archiveNames = $batch->addOlds();
1627 $status = $batch->execute();
1628 $this->unlock(); // done
1630 if ( $status->isOK() ) {
1631 DeferredUpdates
::addUpdate( SiteStatsUpdate
::factory( array( 'images' => -1 ) ) );
1634 // Hack: the lock()/unlock() pair is nested in a transaction so the locking is not
1635 // tied to BEGIN/COMMIT. To avoid slow purges in the transaction, move them outside.
1637 $this->getRepo()->getMasterDB()->onTransactionIdle(
1638 function () use ( $file, $archiveNames ) {
1641 $file->purgeEverything();
1642 foreach ( $archiveNames as $archiveName ) {
1643 $file->purgeOldThumbnails( $archiveName );
1646 if ( $wgUseSquid ) {
1648 $purgeUrls = array();
1649 foreach ( $archiveNames as $archiveName ) {
1650 $purgeUrls[] = $file->getArchiveUrl( $archiveName );
1652 SquidUpdate
::purge( $purgeUrls );
1661 * Delete an old version of the file.
1663 * Moves the file into an archive directory (or deletes it)
1664 * and removes the database row.
1666 * Cache purging is done; logging is caller's responsibility.
1668 * @param string $archiveName
1669 * @param string $reason
1670 * @param bool $suppress
1671 * @param User|null $user
1672 * @throws MWException Exception on database or file store failure
1673 * @return FileRepoStatus
1675 function deleteOld( $archiveName, $reason, $suppress = false, $user = null ) {
1677 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1678 return $this->readOnlyFatalStatus();
1681 $batch = new LocalFileDeleteBatch( $this, $reason, $suppress, $user );
1683 $this->lock(); // begin
1684 $batch->addOld( $archiveName );
1685 $status = $batch->execute();
1686 $this->unlock(); // done
1688 $this->purgeOldThumbnails( $archiveName );
1689 if ( $status->isOK() ) {
1690 $this->purgeDescription();
1691 $this->purgeHistory();
1694 if ( $wgUseSquid ) {
1696 SquidUpdate
::purge( array( $this->getArchiveUrl( $archiveName ) ) );
1703 * Restore all or specified deleted revisions to the given file.
1704 * Permissions and logging are left to the caller.
1706 * May throw database exceptions on error.
1708 * @param array $versions Set of record ids of deleted items to restore,
1709 * or empty to restore all revisions.
1710 * @param bool $unsuppress
1711 * @return FileRepoStatus
1713 function restore( $versions = array(), $unsuppress = false ) {
1714 if ( $this->getRepo()->getReadOnlyReason() !== false ) {
1715 return $this->readOnlyFatalStatus();
1718 $batch = new LocalFileRestoreBatch( $this, $unsuppress );
1720 $this->lock(); // begin
1724 $batch->addIds( $versions );
1726 $status = $batch->execute();
1727 if ( $status->isGood() ) {
1728 $cleanupStatus = $batch->cleanup();
1729 $cleanupStatus->successCount
= 0;
1730 $cleanupStatus->failCount
= 0;
1731 $status->merge( $cleanupStatus );
1733 $this->unlock(); // done
1738 /** isMultipage inherited */
1739 /** pageCount inherited */
1740 /** scaleHeight inherited */
1741 /** getImageSize inherited */
1744 * Get the URL of the file description page.
1747 function getDescriptionUrl() {
1748 return $this->title
->getLocalURL();
1752 * Get the HTML text of the description page
1753 * This is not used by ImagePage for local files, since (among other things)
1754 * it skips the parser cache.
1756 * @param Language $lang What language to get description in (Optional)
1757 * @return bool|mixed
1759 function getDescriptionText( $lang = null ) {
1760 $revision = Revision
::newFromTitle( $this->title
, false, Revision
::READ_NORMAL
);
1764 $content = $revision->getContent();
1768 $pout = $content->getParserOutput( $this->title
, null, new ParserOptions( null, $lang ) );
1770 return $pout->getText();
1774 * @param int $audience
1778 function getDescription( $audience = self
::FOR_PUBLIC
, User
$user = null ) {
1780 if ( $audience == self
::FOR_PUBLIC
&& $this->isDeleted( self
::DELETED_COMMENT
) ) {
1782 } elseif ( $audience == self
::FOR_THIS_USER
1783 && !$this->userCan( self
::DELETED_COMMENT
, $user )
1787 return $this->description
;
1792 * @return bool|string
1794 function getTimestamp() {
1797 return $this->timestamp
;
1803 function getSha1() {
1805 // Initialise now if necessary
1806 if ( $this->sha1
== '' && $this->fileExists
) {
1807 $this->lock(); // begin
1809 $this->sha1
= $this->repo
->getFileSha1( $this->getPath() );
1810 if ( !wfReadOnly() && strval( $this->sha1
) != '' ) {
1811 $dbw = $this->repo
->getMasterDB();
1812 $dbw->update( 'image',
1813 array( 'img_sha1' => $this->sha1
),
1814 array( 'img_name' => $this->getName() ),
1816 $this->saveToCache();
1819 $this->unlock(); // done
1826 * @return bool Whether to cache in RepoGroup (this avoids OOMs)
1828 function isCacheable() {
1831 // If extra data (metadata) was not loaded then it must have been large
1832 return $this->extraDataLoaded
1833 && strlen( serialize( $this->metadata
) ) <= self
::CACHE_FIELD_MAX_LEN
;
1837 * Start a transaction and lock the image for update
1838 * Increments a reference counter if the lock is already held
1839 * @throws MWException Throws an error if the lock was not acquired
1840 * @return bool success
1843 $dbw = $this->repo
->getMasterDB();
1845 if ( !$this->locked
) {
1846 if ( !$dbw->trxLevel() ) {
1847 $dbw->begin( __METHOD__
);
1848 $this->lockedOwnTrx
= true;
1851 // Bug 54736: use simple lock to handle when the file does not exist.
1852 // SELECT FOR UPDATE prevents changes, not other SELECTs with FOR UPDATE.
1853 // Also, that would cause contention on INSERT of similarly named rows.
1854 $backend = $this->getRepo()->getBackend();
1855 $lockPaths = array( $this->getPath() ); // represents all versions of the file
1856 $status = $backend->lockFiles( $lockPaths, LockManager
::LOCK_EX
, 5 );
1857 if ( !$status->isGood() ) {
1858 throw new MWException( "Could not acquire lock for '{$this->getName()}.'" );
1860 $dbw->onTransactionIdle( function () use ( $backend, $lockPaths ) {
1861 $backend->unlockFiles( $lockPaths, LockManager
::LOCK_EX
); // release on commit
1865 $this->markVolatile(); // file may change soon
1871 * Decrement the lock reference count. If the reference count is reduced to zero, commits
1872 * the transaction and thereby releases the image lock.
1875 if ( $this->locked
) {
1877 if ( !$this->locked
&& $this->lockedOwnTrx
) {
1878 $dbw = $this->repo
->getMasterDB();
1879 $dbw->commit( __METHOD__
);
1880 $this->lockedOwnTrx
= false;
1886 * Mark a file as about to be changed
1888 * This sets a cache key that alters master/slave DB loading behavior
1890 * @return bool Success
1892 protected function markVolatile() {
1895 $key = $this->repo
->getSharedCacheKey( 'file-volatile', md5( $this->getName() ) );
1897 $this->lastMarkedVolatile
= time();
1898 return $wgMemc->set( $key, $this->lastMarkedVolatile
, self
::VOLATILE_TTL
);
1905 * Check if a file is about to be changed or has been changed recently
1907 * @see LocalFile::isVolatile()
1908 * @return bool Whether the file is volatile
1910 protected function isVolatile() {
1913 $key = $this->repo
->getSharedCacheKey( 'file-volatile', md5( $this->getName() ) );
1915 // repo unavailable; bail.
1919 if ( $this->lastMarkedVolatile
=== 0 ) {
1920 $this->lastMarkedVolatile
= $wgMemc->get( $key ) ?
: 0;
1923 $volatileDuration = time() - $this->lastMarkedVolatile
;
1924 return $volatileDuration <= self
::VOLATILE_TTL
;
1928 * Roll back the DB transaction and mark the image unlocked
1930 function unlockAndRollback() {
1931 $this->locked
= false;
1932 $dbw = $this->repo
->getMasterDB();
1933 $dbw->rollback( __METHOD__
);
1934 $this->lockedOwnTrx
= false;
1940 protected function readOnlyFatalStatus() {
1941 return $this->getRepo()->newFatal( 'filereadonlyerror', $this->getName(),
1942 $this->getRepo()->getName(), $this->getRepo()->getReadOnlyReason() );
1946 * Clean up any dangling locks
1948 function __destruct() {
1951 } // LocalFile class
1953 # ------------------------------------------------------------------------------
1956 * Helper class for file deletion
1957 * @ingroup FileAbstraction
1959 class LocalFileDeleteBatch
{
1960 /** @var LocalFile */
1967 private $srcRels = array();
1970 private $archiveUrls = array();
1972 /** @var array Items to be processed in the deletion batch */
1973 private $deletionBatch;
1975 /** @var bool Wether to suppress all suppressable fields when deleting */
1978 /** @var FileRepoStatus */
1986 * @param string $reason
1987 * @param bool $suppress
1988 * @param User|null $user
1990 function __construct( File
$file, $reason = '', $suppress = false, $user = null ) {
1991 $this->file
= $file;
1992 $this->reason
= $reason;
1993 $this->suppress
= $suppress;
1995 $this->user
= $user;
1998 $this->user
= $wgUser;
2000 $this->status
= $file->repo
->newGood();
2003 function addCurrent() {
2004 $this->srcRels
['.'] = $this->file
->getRel();
2008 * @param string $oldName
2010 function addOld( $oldName ) {
2011 $this->srcRels
[$oldName] = $this->file
->getArchiveRel( $oldName );
2012 $this->archiveUrls
[] = $this->file
->getArchiveUrl( $oldName );
2016 * Add the old versions of the image to the batch
2017 * @return array List of archive names from old versions
2019 function addOlds() {
2020 $archiveNames = array();
2022 $dbw = $this->file
->repo
->getMasterDB();
2023 $result = $dbw->select( 'oldimage',
2024 array( 'oi_archive_name' ),
2025 array( 'oi_name' => $this->file
->getName() ),
2029 foreach ( $result as $row ) {
2030 $this->addOld( $row->oi_archive_name
);
2031 $archiveNames[] = $row->oi_archive_name
;
2034 return $archiveNames;
2040 function getOldRels() {
2041 if ( !isset( $this->srcRels
['.'] ) ) {
2042 $oldRels =& $this->srcRels
;
2043 $deleteCurrent = false;
2045 $oldRels = $this->srcRels
;
2046 unset( $oldRels['.'] );
2047 $deleteCurrent = true;
2050 return array( $oldRels, $deleteCurrent );
2056 protected function getHashes() {
2058 list( $oldRels, $deleteCurrent ) = $this->getOldRels();
2060 if ( $deleteCurrent ) {
2061 $hashes['.'] = $this->file
->getSha1();
2064 if ( count( $oldRels ) ) {
2065 $dbw = $this->file
->repo
->getMasterDB();
2066 $res = $dbw->select(
2068 array( 'oi_archive_name', 'oi_sha1' ),
2069 array( 'oi_archive_name' => array_keys( $oldRels ),
2070 'oi_name' => $this->file
->getName() ), // performance
2074 foreach ( $res as $row ) {
2075 if ( rtrim( $row->oi_sha1
, "\0" ) === '' ) {
2076 // Get the hash from the file
2077 $oldUrl = $this->file
->getArchiveVirtualUrl( $row->oi_archive_name
);
2078 $props = $this->file
->repo
->getFileProps( $oldUrl );
2080 if ( $props['fileExists'] ) {
2081 // Upgrade the oldimage row
2082 $dbw->update( 'oldimage',
2083 array( 'oi_sha1' => $props['sha1'] ),
2084 array( 'oi_name' => $this->file
->getName(), 'oi_archive_name' => $row->oi_archive_name
),
2086 $hashes[$row->oi_archive_name
] = $props['sha1'];
2088 $hashes[$row->oi_archive_name
] = false;
2091 $hashes[$row->oi_archive_name
] = $row->oi_sha1
;
2096 $missing = array_diff_key( $this->srcRels
, $hashes );
2098 foreach ( $missing as $name => $rel ) {
2099 $this->status
->error( 'filedelete-old-unregistered', $name );
2102 foreach ( $hashes as $name => $hash ) {
2104 $this->status
->error( 'filedelete-missing', $this->srcRels
[$name] );
2105 unset( $hashes[$name] );
2112 function doDBInserts() {
2113 $dbw = $this->file
->repo
->getMasterDB();
2114 $encTimestamp = $dbw->addQuotes( $dbw->timestamp() );
2115 $encUserId = $dbw->addQuotes( $this->user
->getId() );
2116 $encReason = $dbw->addQuotes( $this->reason
);
2117 $encGroup = $dbw->addQuotes( 'deleted' );
2118 $ext = $this->file
->getExtension();
2119 $dotExt = $ext === '' ?
'' : ".$ext";
2120 $encExt = $dbw->addQuotes( $dotExt );
2121 list( $oldRels, $deleteCurrent ) = $this->getOldRels();
2123 // Bitfields to further suppress the content
2124 if ( $this->suppress
) {
2126 // This should be 15...
2127 $bitfield |
= Revision
::DELETED_TEXT
;
2128 $bitfield |
= Revision
::DELETED_COMMENT
;
2129 $bitfield |
= Revision
::DELETED_USER
;
2130 $bitfield |
= Revision
::DELETED_RESTRICTED
;
2132 $bitfield = 'oi_deleted';
2135 if ( $deleteCurrent ) {
2136 $concat = $dbw->buildConcat( array( "img_sha1", $encExt ) );
2137 $where = array( 'img_name' => $this->file
->getName() );
2138 $dbw->insertSelect( 'filearchive', 'image',
2140 'fa_storage_group' => $encGroup,
2141 'fa_storage_key' => $dbw->conditional(
2142 array( 'img_sha1' => '' ),
2143 $dbw->addQuotes( '' ),
2146 'fa_deleted_user' => $encUserId,
2147 'fa_deleted_timestamp' => $encTimestamp,
2148 'fa_deleted_reason' => $encReason,
2149 'fa_deleted' => $this->suppress ?
$bitfield : 0,
2151 'fa_name' => 'img_name',
2152 'fa_archive_name' => 'NULL',
2153 'fa_size' => 'img_size',
2154 'fa_width' => 'img_width',
2155 'fa_height' => 'img_height',
2156 'fa_metadata' => 'img_metadata',
2157 'fa_bits' => 'img_bits',
2158 'fa_media_type' => 'img_media_type',
2159 'fa_major_mime' => 'img_major_mime',
2160 'fa_minor_mime' => 'img_minor_mime',
2161 'fa_description' => 'img_description',
2162 'fa_user' => 'img_user',
2163 'fa_user_text' => 'img_user_text',
2164 'fa_timestamp' => 'img_timestamp',
2165 'fa_sha1' => 'img_sha1',
2166 ), $where, __METHOD__
);
2169 if ( count( $oldRels ) ) {
2170 $concat = $dbw->buildConcat( array( "oi_sha1", $encExt ) );
2172 'oi_name' => $this->file
->getName(),
2173 'oi_archive_name' => array_keys( $oldRels ) );
2174 $dbw->insertSelect( 'filearchive', 'oldimage',
2176 'fa_storage_group' => $encGroup,
2177 'fa_storage_key' => $dbw->conditional(
2178 array( 'oi_sha1' => '' ),
2179 $dbw->addQuotes( '' ),
2182 'fa_deleted_user' => $encUserId,
2183 'fa_deleted_timestamp' => $encTimestamp,
2184 'fa_deleted_reason' => $encReason,
2185 'fa_deleted' => $this->suppress ?
$bitfield : 'oi_deleted',
2187 'fa_name' => 'oi_name',
2188 'fa_archive_name' => 'oi_archive_name',
2189 'fa_size' => 'oi_size',
2190 'fa_width' => 'oi_width',
2191 'fa_height' => 'oi_height',
2192 'fa_metadata' => 'oi_metadata',
2193 'fa_bits' => 'oi_bits',
2194 'fa_media_type' => 'oi_media_type',
2195 'fa_major_mime' => 'oi_major_mime',
2196 'fa_minor_mime' => 'oi_minor_mime',
2197 'fa_description' => 'oi_description',
2198 'fa_user' => 'oi_user',
2199 'fa_user_text' => 'oi_user_text',
2200 'fa_timestamp' => 'oi_timestamp',
2201 'fa_sha1' => 'oi_sha1',
2202 ), $where, __METHOD__
);
2206 function doDBDeletes() {
2207 $dbw = $this->file
->repo
->getMasterDB();
2208 list( $oldRels, $deleteCurrent ) = $this->getOldRels();
2210 if ( count( $oldRels ) ) {
2211 $dbw->delete( 'oldimage',
2213 'oi_name' => $this->file
->getName(),
2214 'oi_archive_name' => array_keys( $oldRels )
2218 if ( $deleteCurrent ) {
2219 $dbw->delete( 'image', array( 'img_name' => $this->file
->getName() ), __METHOD__
);
2224 * Run the transaction
2225 * @return FileRepoStatus
2227 function execute() {
2228 wfProfileIn( __METHOD__
);
2230 $this->file
->lock();
2231 // Leave private files alone
2232 $privateFiles = array();
2233 list( $oldRels, ) = $this->getOldRels();
2234 $dbw = $this->file
->repo
->getMasterDB();
2236 if ( !empty( $oldRels ) ) {
2237 $res = $dbw->select( 'oldimage',
2238 array( 'oi_archive_name' ),
2239 array( 'oi_name' => $this->file
->getName(),
2240 'oi_archive_name' => array_keys( $oldRels ),
2241 $dbw->bitAnd( 'oi_deleted', File
::DELETED_FILE
) => File
::DELETED_FILE
),
2244 foreach ( $res as $row ) {
2245 $privateFiles[$row->oi_archive_name
] = 1;
2248 // Prepare deletion batch
2249 $hashes = $this->getHashes();
2250 $this->deletionBatch
= array();
2251 $ext = $this->file
->getExtension();
2252 $dotExt = $ext === '' ?
'' : ".$ext";
2254 foreach ( $this->srcRels
as $name => $srcRel ) {
2255 // Skip files that have no hash (missing source).
2256 // Keep private files where they are.
2257 if ( isset( $hashes[$name] ) && !array_key_exists( $name, $privateFiles ) ) {
2258 $hash = $hashes[$name];
2259 $key = $hash . $dotExt;
2260 $dstRel = $this->file
->repo
->getDeletedHashPath( $key ) . $key;
2261 $this->deletionBatch
[$name] = array( $srcRel, $dstRel );
2265 // Lock the filearchive rows so that the files don't get deleted by a cleanup operation
2266 // We acquire this lock by running the inserts now, before the file operations.
2268 // This potentially has poor lock contention characteristics -- an alternative
2269 // scheme would be to insert stub filearchive entries with no fa_name and commit
2270 // them in a separate transaction, then run the file ops, then update the fa_name fields.
2271 $this->doDBInserts();
2273 // Removes non-existent file from the batch, so we don't get errors.
2274 $this->deletionBatch
= $this->removeNonexistentFiles( $this->deletionBatch
);
2276 // Execute the file deletion batch
2277 $status = $this->file
->repo
->deleteBatch( $this->deletionBatch
);
2279 if ( !$status->isGood() ) {
2280 $this->status
->merge( $status );
2283 if ( !$this->status
->isOK() ) {
2284 // Critical file deletion error
2285 // Roll back inserts, release lock and abort
2286 // TODO: delete the defunct filearchive rows if we are using a non-transactional DB
2287 $this->file
->unlockAndRollback();
2288 wfProfileOut( __METHOD__
);
2290 return $this->status
;
2293 // Delete image/oldimage rows
2294 $this->doDBDeletes();
2296 // Commit and return
2297 $this->file
->unlock();
2298 wfProfileOut( __METHOD__
);
2300 return $this->status
;
2304 * Removes non-existent files from a deletion batch.
2305 * @param array $batch
2308 function removeNonexistentFiles( $batch ) {
2309 $files = $newBatch = array();
2311 foreach ( $batch as $batchItem ) {
2312 list( $src, ) = $batchItem;
2313 $files[$src] = $this->file
->repo
->getVirtualUrl( 'public' ) . '/' . rawurlencode( $src );
2316 $result = $this->file
->repo
->fileExistsBatch( $files );
2318 foreach ( $batch as $batchItem ) {
2319 if ( $result[$batchItem[0]] ) {
2320 $newBatch[] = $batchItem;
2328 # ------------------------------------------------------------------------------
2331 * Helper class for file undeletion
2332 * @ingroup FileAbstraction
2334 class LocalFileRestoreBatch
{
2335 /** @var LocalFile */
2338 /** @var array List of file IDs to restore */
2339 private $cleanupBatch;
2341 /** @var array List of file IDs to restore */
2344 /** @var bool Add all revisions of the file */
2347 /** @var bool Wether to remove all settings for suppressed fields */
2348 private $unsuppress = false;
2352 * @param bool $unsuppress
2354 function __construct( File
$file, $unsuppress = false ) {
2355 $this->file
= $file;
2356 $this->cleanupBatch
= $this->ids
= array();
2357 $this->ids
= array();
2358 $this->unsuppress
= $unsuppress;
2364 function addId( $fa_id ) {
2365 $this->ids
[] = $fa_id;
2369 * Add a whole lot of files by ID
2371 function addIds( $ids ) {
2372 $this->ids
= array_merge( $this->ids
, $ids );
2376 * Add all revisions of the file
2383 * Run the transaction, except the cleanup batch.
2384 * The cleanup batch should be run in a separate transaction, because it locks different
2385 * rows and there's no need to keep the image row locked while it's acquiring those locks
2386 * The caller may have its own transaction open.
2387 * So we save the batch and let the caller call cleanup()
2388 * @return FileRepoStatus
2390 function execute() {
2393 if ( !$this->all
&& !$this->ids
) {
2395 return $this->file
->repo
->newGood();
2398 $this->file
->lock();
2400 $dbw = $this->file
->repo
->getMasterDB();
2401 $status = $this->file
->repo
->newGood();
2403 $exists = (bool)$dbw->selectField( 'image', '1',
2404 array( 'img_name' => $this->file
->getName() ), __METHOD__
, array( 'FOR UPDATE' ) );
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 );