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<?php
/**
* A repository that stores files in the local filesystem and registers them
* in the wiki's own database. This is the most commonly used repository class.
* @ingroup FileRepo
*/
class LocalRepo extends FSRepo {
var $fileFactory = array( 'LocalFile', 'newFromTitle' );
var $oldFileFactory = array( 'OldLocalFile', 'newFromTitle' );
var $fileFromRowFactory = array( 'LocalFile', 'newFromRow' );
var $oldFileFromRowFactory = array( 'OldLocalFile', 'newFromRow' );
function getMemcKey( $key ) {
return wfWikiID( $this->getSlaveDB() ) . ":{$key}";
}
function newFileFromRow( $row ) {
if ( isset( $row->img_name ) ) {
return call_user_func( $this->fileFromRowFactory, $row, $this );
} elseif ( isset( $row->oi_name ) ) {
return call_user_func( $this->oldFileFromRowFactory, $row, $this );
} else {
throw new MWException( __METHOD__.': invalid row' );
}
}
function newFromArchiveName( $title, $archiveName ) {
return OldLocalFile::newFromArchiveName( $title, $this, $archiveName );
}
/**
* Delete files in the deleted directory if they are not referenced in the
* filearchive table. This needs to be done in the repo because it needs to
* interleave database locks with file operations, which is potentially a
* remote operation.
* @return FileRepoStatus
*/
function cleanupDeletedBatch( $storageKeys ) {
$root = $this->getZonePath( 'deleted' );
$dbw = $this->getMasterDB();
$status = $this->newGood();
$storageKeys = array_unique($storageKeys);
foreach ( $storageKeys as $key ) {
$hashPath = $this->getDeletedHashPath( $key );
$path = "$root/$hashPath$key";
$dbw->begin();
$inuse = $dbw->selectField( 'filearchive', '1',
array( 'fa_storage_group' => 'deleted', 'fa_storage_key' => $key ),
__METHOD__, array( 'FOR UPDATE' ) );
if( !$inuse ) {
$sha1 = substr( $key, 0, strcspn( $key, '.' ) );
$ext = substr( $key, strcspn($key,'.') + 1 );
$ext = File::normalizeExtension($ext);
$inuse = $dbw->selectField( 'oldimage', '1',
array( 'oi_sha1' => $sha1,
"oi_archive_name LIKE '%.{$ext}'",
'oi_deleted & '.File::DELETED_FILE => File::DELETED_FILE ),
__METHOD__, array( 'FOR UPDATE' ) );
}
if ( !$inuse ) {
wfDebug( __METHOD__ . ": deleting $key\n" );
if ( !@unlink( $path ) ) {
$status->error( 'undelete-cleanup-error', $path );
$status->failCount++;
}
} else {
wfDebug( __METHOD__ . ": $key still in use\n" );
$status->successCount++;
}
$dbw->commit();
}
return $status;
}
/**
* Function link Title::getArticleID().
* We can't say Title object, what database it should use, so we duplicate that function here.
*/
protected function getArticleID( $title ) {
if( !$title instanceof Title ) {
return 0;
}
$dbr = $this->getSlaveDB();
$id = $dbr->selectField(
'page', // Table
'page_id', //Field
array( //Conditions
'page_namespace' => $title->getNamespace(),
'page_title' => $title->getDBKey(),
),
__METHOD__ //Function name
);
return $id;
}
function findBySha1( $hash ) {
$dbr = $this->getSlaveDB();
$res = $dbr->select(
'image',
LocalFile::selectFields(),
array( 'img_sha1' => $hash )
);
$result = array();
while ( $row = $res->fetchObject() )
$result[] = $this->newFileFromRow( $row );
$res->free();
return $result;
}
/*
* Find many files using one query
*/
function findFiles( $titles ) {
// FIXME: Only accepts a $titles array where the keys are the sanitized
// file names.
if ( count( $titles ) == 0 ) return array();
$dbr = $this->getSlaveDB();
$res = $dbr->select(
'image',
LocalFile::selectFields(),
array( 'img_name' => array_keys( $titles ) )
);
$result = array();
while ( $row = $res->fetchObject() ) {
$result[$row->img_name] = $this->newFileFromRow( $row );
}
$res->free();
return $result;
}
}
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