/**
* 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 getSlaveDB() {
return wfGetDB( DB_SLAVE );
return wfGetDB( DB_MASTER );
}
+ function getMemcKey( $key ) {
+ return wfWikiID( $this->getSlaveDB() ) . ":{$key}";
+ }
+
function newFileFromRow( $row ) {
if ( isset( $row->img_name ) ) {
- return LocalFile::newFromRow( $row, $this );
+ return call_user_func( $this->fileFromRowFactory, $row, $this );
} elseif ( isset( $row->oi_name ) ) {
- return OldLocalFile::newFromRow( $row, $this );
+ 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
+ * 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
*/
$hashPath = $this->getDeletedHashPath( $key );
$path = "$root/$hashPath$key";
$dbw->begin();
- $inuse = $dbw->selectField( 'filearchive', '1',
+ $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 ) ) {
}
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 checkRedirect( $title ) {
+ global $wgMemc;
+
+ if( is_string( $title ) ) {
+ $title = Title::newFromTitle( $title );
+ }
+ if( $title instanceof Title && $title->getNamespace() == NS_MEDIA ) {
+ $title = Title::makeTitle( NS_FILE, $title->getText() );
+ }
+
+ $memcKey = $this->getMemcKey( "image_redirect:" . md5( $title->getPrefixedDBkey() ) );
+ $cachedValue = $wgMemc->get( $memcKey );
+ if( $cachedValue ) {
+ return Title::newFromDbKey( $cachedValue );
+ } elseif( $cachedValue == ' ' ) { # FIXME: ugly hack, but BagOStuff caching seems to be weird and return false if !cachedValue, not only if it doesn't exist
+ return false;
+ }
+
+ $id = $this->getArticleID( $title );
+ if( !$id ) {
+ $wgMemc->set( $memcKey, " ", 9000 );
+ return false;
+ }
+ $dbr = $this->getSlaveDB();
+ $row = $dbr->selectRow(
+ 'redirect',
+ array( 'rd_title', 'rd_namespace' ),
+ array( 'rd_from' => $id ),
+ __METHOD__
+ );
+
+ if( $row ) $targetTitle = Title::makeTitle( $row->rd_namespace, $row->rd_title );
+ $wgMemc->set( $memcKey, ($row ? $targetTitle->getPrefixedDBkey() : " "), 9000 );
+ if( !$row ) {
+ return false;
+ }
+ return $targetTitle;
+ }
+
+ function invalidateImageRedirect( $title ) {
+ global $wgMemc;
+ $memcKey = $this->getMemcKey( "image_redirect:" . md5( $title->getPrefixedDBkey() ) );
+ $wgMemc->delete( $memcKey );
+ }
+
+ 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;
+ }
}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff