From d81f562b712f2387fa02290bf2ca86392ab356f2 Mon Sep 17 00:00:00 2001 From: Pierre Schmitz Date: Wed, 11 Oct 2006 20:21:25 +0000 Subject: Aktualisierung auf Version 1.8.1 --- maintenance/storage/checkStorage.php | 936 +++++++++++++++++------------------ 1 file changed, 468 insertions(+), 468 deletions(-) (limited to 'maintenance/storage/checkStorage.php') diff --git a/maintenance/storage/checkStorage.php b/maintenance/storage/checkStorage.php index a83d2744..579954d5 100644 --- a/maintenance/storage/checkStorage.php +++ b/maintenance/storage/checkStorage.php @@ -1,468 +1,468 @@ -check( $fix, $xml ); -} - - -//---------------------------------------------------------------------------------- - -class CheckStorage -{ - var $oldIdMap, $errors; - var $dbStore = null; - - var $errorDescriptions = array( - 'restore text' => 'Damaged text, need to be restored from a backup', - 'restore revision' => 'Damaged revision row, need to be restored from a backup', - 'unfixable' => 'Unexpected errors with no automated fixing method', - 'fixed' => 'Errors already fixed', - 'fixable' => 'Errors which would already be fixed if --fix was specified', - ); - - function check( $fix = false, $xml = '' ) { - $fname = 'checkStorage'; - $dbr =& wfGetDB( DB_SLAVE ); - if ( $fix ) { - $dbw =& wfGetDB( DB_MASTER ); - print "Checking, will fix errors if possible...\n"; - } else { - print "Checking...\n"; - } - $maxRevId = $dbr->selectField( 'revision', 'MAX(rev_id)', false, $fname ); - $chunkSize = 1000; - $flagStats = array(); - $objectStats = array(); - $knownFlags = array( 'external', 'gzip', 'object', 'utf-8' ); - $this->errors = array( - 'restore text' => array(), - 'restore revision' => array(), - 'unfixable' => array(), - 'fixed' => array(), - 'fixable' => array(), - ); - - for ( $chunkStart = 1 ; $chunkStart < $maxRevId; $chunkStart += $chunkSize ) { - $chunkEnd = $chunkStart + $chunkSize - 1; - //print "$chunkStart of $maxRevId\n"; - - // Fetch revision rows - $this->oldIdMap = array(); - $dbr->ping(); - $res = $dbr->select( 'revision', array( 'rev_id', 'rev_text_id' ), - array( "rev_id BETWEEN $chunkStart AND $chunkEnd" ), $fname ); - while ( $row = $dbr->fetchObject( $res ) ) { - $this->oldIdMap[$row->rev_id] = $row->rev_text_id; - } - $dbr->freeResult( $res ); - - if ( !count( $this->oldIdMap ) ) { - continue; - } - - // Fetch old_flags - $missingTextRows = array_flip( $this->oldIdMap ); - $externalRevs = array(); - $objectRevs = array(); - $res = $dbr->select( 'text', array( 'old_id', 'old_flags' ), - 'old_id IN (' . implode( ',', $this->oldIdMap ) . ')', $fname ); - while ( $row = $dbr->fetchObject( $res ) ) { - $flags = $row->old_flags; - $id = $row->old_id; - - // Create flagStats row if it doesn't exist - $flagStats = $flagStats + array( $flags => 0 ); - // Increment counter - $flagStats[$flags]++; - - // Not missing - unset( $missingTextRows[$row->old_id] ); - - // Check for external or object - if ( $flags == '' ) { - $flagArray = array(); - } else { - $flagArray = explode( ',', $flags ); - } - if ( in_array( 'external', $flagArray ) ) { - $externalRevs[] = $id; - } elseif ( in_array( 'object', $flagArray ) ) { - $objectRevs[] = $id; - } - - // Check for unrecognised flags - if ( $flags == '0' ) { - // This is a known bug from 2004 - // It's safe to just erase the old_flags field - if ( $fix ) { - $this->error( 'fixed', "Warning: old_flags set to 0", $id ); - $dbw->ping(); - $dbw->update( 'text', array( 'old_flags' => '' ), - array( 'old_id' => $id ), $fname ); - echo "Fixed\n"; - } else { - $this->error( 'fixable', "Warning: old_flags set to 0", $id ); - } - } elseif ( count( array_diff( $flagArray, $knownFlags ) ) ) { - $this->error( 'unfixable', "Error: invalid flags field \"$flags\"", $id ); - } - } - $dbr->freeResult( $res ); - - // Output errors for any missing text rows - foreach ( $missingTextRows as $oldId => $revId ) { - $this->error( 'restore revision', "Error: missing text row", $oldId ); - } - - // Verify external revisions - $externalConcatBlobs = array(); - $externalNormalBlobs = array(); - if ( count( $externalRevs ) ) { - $res = $dbr->select( 'text', array( 'old_id', 'old_flags', 'old_text' ), - array( 'old_id IN (' . implode( ',', $externalRevs ) . ')' ), $fname ); - while ( $row = $dbr->fetchObject( $res ) ) { - $urlParts = explode( '://', $row->old_text, 2 ); - if ( count( $urlParts ) !== 2 || $urlParts[1] == '' ) { - $this->error( 'restore text', "Error: invalid URL \"{$row->old_text}\"", $row->old_id ); - continue; - } - list( $proto, $path ) = $urlParts; - if ( $proto != 'DB' ) { - $this->error( 'restore text', "Error: invalid external protocol \"$proto\"", $row->old_id ); - continue; - } - $path = explode( '/', $row->old_text ); - $cluster = $path[2]; - $id = $path[3]; - if ( isset( $path[4] ) ) { - $externalConcatBlobs[$cluster][$id][] = $row->old_id; - } else { - $externalNormalBlobs[$cluster][$id][] = $row->old_id; - } - } - $dbr->freeResult( $res ); - } - - // Check external concat blobs for the right header - $this->checkExternalConcatBlobs( $externalConcatBlobs ); - - // Check external normal blobs for existence - if ( count( $externalNormalBlobs ) ) { - if ( is_null( $this->dbStore ) ) { - $this->dbStore = new ExternalStoreDB; - } - foreach ( $externalConcatBlobs as $cluster => $xBlobIds ) { - $blobIds = array_keys( $xBlobIds ); - $extDb =& $this->dbStore->getSlave( $cluster ); - $blobsTable = $this->dbStore->getTable( $extDb ); - $res = $extDb->select( $blobsTable, - array( 'blob_id' ), - array( 'blob_id IN( ' . implode( ',', $blobIds ) . ')' ), $fname ); - while ( $row = $extDb->fetchObject( $res ) ) { - unset( $xBlobIds[$row->blob_id] ); - } - $extDb->freeResult( $res ); - // Print errors for missing blobs rows - foreach ( $xBlobIds as $blobId => $oldId ) { - $this->error( 'restore text', "Error: missing target $blobId for one-part ES URL", $oldId ); - } - } - } - - // Check local objects - $dbr->ping(); - $concatBlobs = array(); - $curIds = array(); - if ( count( $objectRevs ) ) { - $headerLength = 300; - $res = $dbr->select( 'text', array( 'old_id', 'old_flags', "LEFT(old_text, $headerLength) AS header" ), - array( 'old_id IN (' . implode( ',', $objectRevs ) . ')' ), $fname ); - while ( $row = $dbr->fetchObject( $res ) ) { - $oldId = $row->old_id; - if ( !preg_match( '/^O:(\d+):"(\w+)"/', $row->header, $matches ) ) { - $this->error( 'restore text', "Error: invalid object header", $oldId ); - continue; - } - - $className = strtolower( $matches[2] ); - if ( strlen( $className ) != $matches[1] ) { - $this->error( 'restore text', "Error: invalid object header, wrong class name length", $oldId ); - continue; - } - - $objectStats = $objectStats + array( $className => 0 ); - $objectStats[$className]++; - - switch ( $className ) { - case 'concatenatedgziphistoryblob': - // Good - break; - case 'historyblobstub': - case 'historyblobcurstub': - if ( strlen( $row->header ) == $headerLength ) { - $this->error( 'unfixable', "Error: overlong stub header", $oldId ); - continue; - } - $stubObj = unserialize( $row->header ); - if ( !is_object( $stubObj ) ) { - $this->error( 'restore text', "Error: unable to unserialize stub object", $oldId ); - continue; - } - if ( $className == 'historyblobstub' ) { - $concatBlobs[$stubObj->mOldId][] = $oldId; - } else { - $curIds[$stubObj->mCurId][] = $oldId; - } - break; - default: - $this->error( 'unfixable', "Error: unrecognised object class \"$className\"", $oldId ); - } - } - $dbr->freeResult( $res ); - } - - // Check local concat blob validity - $externalConcatBlobs = array(); - if ( count( $concatBlobs ) ) { - $headerLength = 300; - $res = $dbr->select( 'text', array( 'old_id', 'old_flags', "LEFT(old_text, $headerLength) AS header" ), - array( 'old_id IN (' . implode( ',', array_keys( $concatBlobs ) ) . ')' ), $fname ); - while ( $row = $dbr->fetchObject( $res ) ) { - $flags = explode( ',', $row->old_flags ); - if ( in_array( 'external', $flags ) ) { - // Concat blob is in external storage? - if ( in_array( 'object', $flags ) ) { - $urlParts = explode( '/', $row->header ); - if ( $urlParts[0] != 'DB:' ) { - $this->error( 'unfixable', "Error: unrecognised external storage type \"{$urlParts[0]}", $row->old_id ); - } else { - $cluster = $urlParts[2]; - $id = $urlParts[3]; - if ( !isset( $externalConcatBlobs[$cluster][$id] ) ) { - $externalConcatBlobs[$cluster][$id] = array(); - } - $externalConcatBlobs[$cluster][$id] = array_merge( - $externalConcatBlobs[$cluster][$id], $concatBlobs[$row->old_id] - ); - } - } else { - $this->error( 'unfixable', "Error: invalid flags \"{$row->old_flags}\" on concat bulk row {$row->old_id}", - $concatBlobs[$row->old_id] ); - } - } elseif ( strcasecmp( substr( $row->header, 0, strlen( CONCAT_HEADER ) ), CONCAT_HEADER ) ) { - $this->error( 'restore text', "Error: Incorrect object header for concat bulk row {$row->old_id}", - $concatBlobs[$row->old_id] ); - } # else good - - unset( $concatBlobs[$row->old_id] ); - } - $dbr->freeResult( $res ); - } - - // Check targets of unresolved stubs - $this->checkExternalConcatBlobs( $externalConcatBlobs ); - - // next chunk - } - - print "\n\nErrors:\n"; - foreach( $this->errors as $name => $errors ) { - if ( count( $errors ) ) { - $description = $this->errorDescriptions[$name]; - echo "$description: " . implode( ',', array_keys( $errors ) ) . "\n"; - } - } - - if ( count( $this->errors['restore text'] ) && $fix ) { - if ( (string)$xml !== '' ) { - $this->restoreText( array_keys( $this->errors['restore text'] ), $xml ); - } else { - echo "Can't fix text, no XML backup specified\n"; - } - } - - print "\nFlag statistics:\n"; - $total = array_sum( $flagStats ); - foreach ( $flagStats as $flag => $count ) { - printf( "%-30s %10d %5.2f%%\n", $flag, $count, $count / $total * 100 ); - } - print "\nLocal object statistics:\n"; - $total = array_sum( $objectStats ); - foreach ( $objectStats as $className => $count ) { - printf( "%-30s %10d %5.2f%%\n", $className, $count, $count / $total * 100 ); - } - } - - - function error( $type, $msg, $ids ) { - if ( is_array( $ids ) && count( $ids ) == 1 ) { - $ids = reset( $ids ); - } - if ( is_array( $ids ) ) { - $revIds = array(); - foreach ( $ids as $id ) { - $revIds = array_merge( $revIds, array_keys( $this->oldIdMap, $id ) ); - } - print "$msg in text rows " . implode( ', ', $ids ) . - ", revisions " . implode( ', ', $revIds ) . "\n"; - } else { - $id = $ids; - $revIds = array_keys( $this->oldIdMap, $id ); - if ( count( $revIds ) == 1 ) { - print "$msg in old_id $id, rev_id {$revIds[0]}\n"; - } else { - print "$msg in old_id $id, revisions " . implode( ', ', $revIds ) . "\n"; - } - } - $this->errors[$type] = $this->errors[$type] + array_flip( $revIds ); - } - - function checkExternalConcatBlobs( $externalConcatBlobs ) { - $fname = 'CheckStorage::checkExternalConcatBlobs'; - if ( !count( $externalConcatBlobs ) ) { - return; - } - - if ( is_null( $this->dbStore ) ) { - $this->dbStore = new ExternalStoreDB; - } - - foreach ( $externalConcatBlobs as $cluster => $oldIds ) { - $blobIds = array_keys( $oldIds ); - $extDb =& $this->dbStore->getSlave( $cluster ); - $blobsTable = $this->dbStore->getTable( $extDb ); - $headerLength = strlen( CONCAT_HEADER ); - $res = $extDb->select( $blobsTable, - array( 'blob_id', "LEFT(blob_text, $headerLength) AS header" ), - array( 'blob_id IN( ' . implode( ',', $blobIds ) . ')' ), $fname ); - while ( $row = $extDb->fetchObject( $res ) ) { - if ( strcasecmp( $row->header, CONCAT_HEADER ) ) { - $this->error( 'restore text', "Error: invalid header on target $cluster/{$row->blob_id} of two-part ES URL", - $oldIds[$row->blob_id] ); - } - unset( $oldIds[$row->blob_id] ); - - } - $extDb->freeResult( $res ); - - // Print errors for missing blobs rows - foreach ( $oldIds as $blobId => $oldIds ) { - $this->error( 'restore text', "Error: missing target $cluster/$blobId for two-part ES URL", $oldIds ); - } - } - } - - function restoreText( $revIds, $xml ) { - global $wgTmpDirectory, $wgDBname; - - if ( !count( $revIds ) ) { - return; - } - - print "Restoring text from XML backup...\n"; - - $revFileName = "$wgTmpDirectory/broken-revlist-$wgDBname"; - $filteredXmlFileName = "$wgTmpDirectory/filtered-$wgDBname.xml"; - - // Write revision list - if ( !file_put_contents( $revFileName, implode( "\n", $revIds ) ) ) { - echo "Error writing revision list, can't restore text\n"; - return; - } - - // Run mwdumper - echo "Filtering XML dump...\n"; - $exitStatus = 0; - passthru( 'mwdumper ' . - wfEscapeShellArg( - "--output=file:$filteredXmlFileName", - "--filter=revlist:$revFileName", - $xml - ), $exitStatus - ); - - if ( $exitStatus ) { - echo "mwdumper died with exit status $exitStatus\n"; - return; - } - - $file = fopen( $filteredXmlFileName, 'r' ); - if ( !$file ) { - echo "Unable to open filtered XML file\n"; - return; - } - - $dbr =& wfGetDB( DB_SLAVE ); - $dbw =& wfGetDB( DB_MASTER ); - $dbr->ping(); - $dbw->ping(); - - $source = new ImportStreamSource( $file ); - $importer = new WikiImporter( $source ); - $importer->setRevisionCallback( array( &$this, 'importRevision' ) ); - $importer->doImport(); - } - - function importRevision( &$revision, &$importer ) { - $fname = 'CheckStorage::importRevision'; - - $id = $revision->getID(); - $text = $revision->getText(); - if ( $text === '' ) { - // This is what happens if the revision was broken at the time the - // dump was made. Unfortunately, it also happens if the revision was - // legitimately blank, so there's no way to tell the difference. To - // be safe, we'll skip it and leave it broken - $id = $id ? $id : ''; - echo "Revision $id is blank in the dump, may have been broken before export\n"; - return; - } - - if ( !$id ) { - // No ID, can't import - echo "No id tag in revision, can't import\n"; - return; - } - - // Find text row again - $dbr =& wfGetDB( DB_SLAVE ); - $oldId = $dbr->selectField( 'revision', 'rev_text_id', array( 'rev_id' => $id ), $fname ); - if ( !$oldId ) { - echo "Missing revision row for rev_id $id\n"; - return; - } - - // Compress the text - $flags = Revision::compressRevisionText( $text ); - - // Update the text row - $dbw->update( 'text', - array( 'old_flags' => $flags, 'old_text' => $text ), - array( 'old_id' => $oldId ), - $fname, array( 'LIMIT' => 1 ) - ); - - // Remove it from the unfixed list and add it to the fixed list - unset( $this->errors['restore text'][$id] ); - $this->errors['fixed'][$id] = true; - } -} -?> +check( $fix, $xml ); +} + + +//---------------------------------------------------------------------------------- + +class CheckStorage +{ + var $oldIdMap, $errors; + var $dbStore = null; + + var $errorDescriptions = array( + 'restore text' => 'Damaged text, need to be restored from a backup', + 'restore revision' => 'Damaged revision row, need to be restored from a backup', + 'unfixable' => 'Unexpected errors with no automated fixing method', + 'fixed' => 'Errors already fixed', + 'fixable' => 'Errors which would already be fixed if --fix was specified', + ); + + function check( $fix = false, $xml = '' ) { + $fname = 'checkStorage'; + $dbr =& wfGetDB( DB_SLAVE ); + if ( $fix ) { + $dbw =& wfGetDB( DB_MASTER ); + print "Checking, will fix errors if possible...\n"; + } else { + print "Checking...\n"; + } + $maxRevId = $dbr->selectField( 'revision', 'MAX(rev_id)', false, $fname ); + $chunkSize = 1000; + $flagStats = array(); + $objectStats = array(); + $knownFlags = array( 'external', 'gzip', 'object', 'utf-8' ); + $this->errors = array( + 'restore text' => array(), + 'restore revision' => array(), + 'unfixable' => array(), + 'fixed' => array(), + 'fixable' => array(), + ); + + for ( $chunkStart = 1 ; $chunkStart < $maxRevId; $chunkStart += $chunkSize ) { + $chunkEnd = $chunkStart + $chunkSize - 1; + //print "$chunkStart of $maxRevId\n"; + + // Fetch revision rows + $this->oldIdMap = array(); + $dbr->ping(); + $res = $dbr->select( 'revision', array( 'rev_id', 'rev_text_id' ), + array( "rev_id BETWEEN $chunkStart AND $chunkEnd" ), $fname ); + while ( $row = $dbr->fetchObject( $res ) ) { + $this->oldIdMap[$row->rev_id] = $row->rev_text_id; + } + $dbr->freeResult( $res ); + + if ( !count( $this->oldIdMap ) ) { + continue; + } + + // Fetch old_flags + $missingTextRows = array_flip( $this->oldIdMap ); + $externalRevs = array(); + $objectRevs = array(); + $res = $dbr->select( 'text', array( 'old_id', 'old_flags' ), + 'old_id IN (' . implode( ',', $this->oldIdMap ) . ')', $fname ); + while ( $row = $dbr->fetchObject( $res ) ) { + $flags = $row->old_flags; + $id = $row->old_id; + + // Create flagStats row if it doesn't exist + $flagStats = $flagStats + array( $flags => 0 ); + // Increment counter + $flagStats[$flags]++; + + // Not missing + unset( $missingTextRows[$row->old_id] ); + + // Check for external or object + if ( $flags == '' ) { + $flagArray = array(); + } else { + $flagArray = explode( ',', $flags ); + } + if ( in_array( 'external', $flagArray ) ) { + $externalRevs[] = $id; + } elseif ( in_array( 'object', $flagArray ) ) { + $objectRevs[] = $id; + } + + // Check for unrecognised flags + if ( $flags == '0' ) { + // This is a known bug from 2004 + // It's safe to just erase the old_flags field + if ( $fix ) { + $this->error( 'fixed', "Warning: old_flags set to 0", $id ); + $dbw->ping(); + $dbw->update( 'text', array( 'old_flags' => '' ), + array( 'old_id' => $id ), $fname ); + echo "Fixed\n"; + } else { + $this->error( 'fixable', "Warning: old_flags set to 0", $id ); + } + } elseif ( count( array_diff( $flagArray, $knownFlags ) ) ) { + $this->error( 'unfixable', "Error: invalid flags field \"$flags\"", $id ); + } + } + $dbr->freeResult( $res ); + + // Output errors for any missing text rows + foreach ( $missingTextRows as $oldId => $revId ) { + $this->error( 'restore revision', "Error: missing text row", $oldId ); + } + + // Verify external revisions + $externalConcatBlobs = array(); + $externalNormalBlobs = array(); + if ( count( $externalRevs ) ) { + $res = $dbr->select( 'text', array( 'old_id', 'old_flags', 'old_text' ), + array( 'old_id IN (' . implode( ',', $externalRevs ) . ')' ), $fname ); + while ( $row = $dbr->fetchObject( $res ) ) { + $urlParts = explode( '://', $row->old_text, 2 ); + if ( count( $urlParts ) !== 2 || $urlParts[1] == '' ) { + $this->error( 'restore text', "Error: invalid URL \"{$row->old_text}\"", $row->old_id ); + continue; + } + list( $proto, $path ) = $urlParts; + if ( $proto != 'DB' ) { + $this->error( 'restore text', "Error: invalid external protocol \"$proto\"", $row->old_id ); + continue; + } + $path = explode( '/', $row->old_text ); + $cluster = $path[2]; + $id = $path[3]; + if ( isset( $path[4] ) ) { + $externalConcatBlobs[$cluster][$id][] = $row->old_id; + } else { + $externalNormalBlobs[$cluster][$id][] = $row->old_id; + } + } + $dbr->freeResult( $res ); + } + + // Check external concat blobs for the right header + $this->checkExternalConcatBlobs( $externalConcatBlobs ); + + // Check external normal blobs for existence + if ( count( $externalNormalBlobs ) ) { + if ( is_null( $this->dbStore ) ) { + $this->dbStore = new ExternalStoreDB; + } + foreach ( $externalConcatBlobs as $cluster => $xBlobIds ) { + $blobIds = array_keys( $xBlobIds ); + $extDb =& $this->dbStore->getSlave( $cluster ); + $blobsTable = $this->dbStore->getTable( $extDb ); + $res = $extDb->select( $blobsTable, + array( 'blob_id' ), + array( 'blob_id IN( ' . implode( ',', $blobIds ) . ')' ), $fname ); + while ( $row = $extDb->fetchObject( $res ) ) { + unset( $xBlobIds[$row->blob_id] ); + } + $extDb->freeResult( $res ); + // Print errors for missing blobs rows + foreach ( $xBlobIds as $blobId => $oldId ) { + $this->error( 'restore text', "Error: missing target $blobId for one-part ES URL", $oldId ); + } + } + } + + // Check local objects + $dbr->ping(); + $concatBlobs = array(); + $curIds = array(); + if ( count( $objectRevs ) ) { + $headerLength = 300; + $res = $dbr->select( 'text', array( 'old_id', 'old_flags', "LEFT(old_text, $headerLength) AS header" ), + array( 'old_id IN (' . implode( ',', $objectRevs ) . ')' ), $fname ); + while ( $row = $dbr->fetchObject( $res ) ) { + $oldId = $row->old_id; + if ( !preg_match( '/^O:(\d+):"(\w+)"/', $row->header, $matches ) ) { + $this->error( 'restore text', "Error: invalid object header", $oldId ); + continue; + } + + $className = strtolower( $matches[2] ); + if ( strlen( $className ) != $matches[1] ) { + $this->error( 'restore text', "Error: invalid object header, wrong class name length", $oldId ); + continue; + } + + $objectStats = $objectStats + array( $className => 0 ); + $objectStats[$className]++; + + switch ( $className ) { + case 'concatenatedgziphistoryblob': + // Good + break; + case 'historyblobstub': + case 'historyblobcurstub': + if ( strlen( $row->header ) == $headerLength ) { + $this->error( 'unfixable', "Error: overlong stub header", $oldId ); + continue; + } + $stubObj = unserialize( $row->header ); + if ( !is_object( $stubObj ) ) { + $this->error( 'restore text', "Error: unable to unserialize stub object", $oldId ); + continue; + } + if ( $className == 'historyblobstub' ) { + $concatBlobs[$stubObj->mOldId][] = $oldId; + } else { + $curIds[$stubObj->mCurId][] = $oldId; + } + break; + default: + $this->error( 'unfixable', "Error: unrecognised object class \"$className\"", $oldId ); + } + } + $dbr->freeResult( $res ); + } + + // Check local concat blob validity + $externalConcatBlobs = array(); + if ( count( $concatBlobs ) ) { + $headerLength = 300; + $res = $dbr->select( 'text', array( 'old_id', 'old_flags', "LEFT(old_text, $headerLength) AS header" ), + array( 'old_id IN (' . implode( ',', array_keys( $concatBlobs ) ) . ')' ), $fname ); + while ( $row = $dbr->fetchObject( $res ) ) { + $flags = explode( ',', $row->old_flags ); + if ( in_array( 'external', $flags ) ) { + // Concat blob is in external storage? + if ( in_array( 'object', $flags ) ) { + $urlParts = explode( '/', $row->header ); + if ( $urlParts[0] != 'DB:' ) { + $this->error( 'unfixable', "Error: unrecognised external storage type \"{$urlParts[0]}", $row->old_id ); + } else { + $cluster = $urlParts[2]; + $id = $urlParts[3]; + if ( !isset( $externalConcatBlobs[$cluster][$id] ) ) { + $externalConcatBlobs[$cluster][$id] = array(); + } + $externalConcatBlobs[$cluster][$id] = array_merge( + $externalConcatBlobs[$cluster][$id], $concatBlobs[$row->old_id] + ); + } + } else { + $this->error( 'unfixable', "Error: invalid flags \"{$row->old_flags}\" on concat bulk row {$row->old_id}", + $concatBlobs[$row->old_id] ); + } + } elseif ( strcasecmp( substr( $row->header, 0, strlen( CONCAT_HEADER ) ), CONCAT_HEADER ) ) { + $this->error( 'restore text', "Error: Incorrect object header for concat bulk row {$row->old_id}", + $concatBlobs[$row->old_id] ); + } # else good + + unset( $concatBlobs[$row->old_id] ); + } + $dbr->freeResult( $res ); + } + + // Check targets of unresolved stubs + $this->checkExternalConcatBlobs( $externalConcatBlobs ); + + // next chunk + } + + print "\n\nErrors:\n"; + foreach( $this->errors as $name => $errors ) { + if ( count( $errors ) ) { + $description = $this->errorDescriptions[$name]; + echo "$description: " . implode( ',', array_keys( $errors ) ) . "\n"; + } + } + + if ( count( $this->errors['restore text'] ) && $fix ) { + if ( (string)$xml !== '' ) { + $this->restoreText( array_keys( $this->errors['restore text'] ), $xml ); + } else { + echo "Can't fix text, no XML backup specified\n"; + } + } + + print "\nFlag statistics:\n"; + $total = array_sum( $flagStats ); + foreach ( $flagStats as $flag => $count ) { + printf( "%-30s %10d %5.2f%%\n", $flag, $count, $count / $total * 100 ); + } + print "\nLocal object statistics:\n"; + $total = array_sum( $objectStats ); + foreach ( $objectStats as $className => $count ) { + printf( "%-30s %10d %5.2f%%\n", $className, $count, $count / $total * 100 ); + } + } + + + function error( $type, $msg, $ids ) { + if ( is_array( $ids ) && count( $ids ) == 1 ) { + $ids = reset( $ids ); + } + if ( is_array( $ids ) ) { + $revIds = array(); + foreach ( $ids as $id ) { + $revIds = array_merge( $revIds, array_keys( $this->oldIdMap, $id ) ); + } + print "$msg in text rows " . implode( ', ', $ids ) . + ", revisions " . implode( ', ', $revIds ) . "\n"; + } else { + $id = $ids; + $revIds = array_keys( $this->oldIdMap, $id ); + if ( count( $revIds ) == 1 ) { + print "$msg in old_id $id, rev_id {$revIds[0]}\n"; + } else { + print "$msg in old_id $id, revisions " . implode( ', ', $revIds ) . "\n"; + } + } + $this->errors[$type] = $this->errors[$type] + array_flip( $revIds ); + } + + function checkExternalConcatBlobs( $externalConcatBlobs ) { + $fname = 'CheckStorage::checkExternalConcatBlobs'; + if ( !count( $externalConcatBlobs ) ) { + return; + } + + if ( is_null( $this->dbStore ) ) { + $this->dbStore = new ExternalStoreDB; + } + + foreach ( $externalConcatBlobs as $cluster => $oldIds ) { + $blobIds = array_keys( $oldIds ); + $extDb =& $this->dbStore->getSlave( $cluster ); + $blobsTable = $this->dbStore->getTable( $extDb ); + $headerLength = strlen( CONCAT_HEADER ); + $res = $extDb->select( $blobsTable, + array( 'blob_id', "LEFT(blob_text, $headerLength) AS header" ), + array( 'blob_id IN( ' . implode( ',', $blobIds ) . ')' ), $fname ); + while ( $row = $extDb->fetchObject( $res ) ) { + if ( strcasecmp( $row->header, CONCAT_HEADER ) ) { + $this->error( 'restore text', "Error: invalid header on target $cluster/{$row->blob_id} of two-part ES URL", + $oldIds[$row->blob_id] ); + } + unset( $oldIds[$row->blob_id] ); + + } + $extDb->freeResult( $res ); + + // Print errors for missing blobs rows + foreach ( $oldIds as $blobId => $oldIds ) { + $this->error( 'restore text', "Error: missing target $cluster/$blobId for two-part ES URL", $oldIds ); + } + } + } + + function restoreText( $revIds, $xml ) { + global $wgTmpDirectory, $wgDBname; + + if ( !count( $revIds ) ) { + return; + } + + print "Restoring text from XML backup...\n"; + + $revFileName = "$wgTmpDirectory/broken-revlist-$wgDBname"; + $filteredXmlFileName = "$wgTmpDirectory/filtered-$wgDBname.xml"; + + // Write revision list + if ( !file_put_contents( $revFileName, implode( "\n", $revIds ) ) ) { + echo "Error writing revision list, can't restore text\n"; + return; + } + + // Run mwdumper + echo "Filtering XML dump...\n"; + $exitStatus = 0; + passthru( 'mwdumper ' . + wfEscapeShellArg( + "--output=file:$filteredXmlFileName", + "--filter=revlist:$revFileName", + $xml + ), $exitStatus + ); + + if ( $exitStatus ) { + echo "mwdumper died with exit status $exitStatus\n"; + return; + } + + $file = fopen( $filteredXmlFileName, 'r' ); + if ( !$file ) { + echo "Unable to open filtered XML file\n"; + return; + } + + $dbr =& wfGetDB( DB_SLAVE ); + $dbw =& wfGetDB( DB_MASTER ); + $dbr->ping(); + $dbw->ping(); + + $source = new ImportStreamSource( $file ); + $importer = new WikiImporter( $source ); + $importer->setRevisionCallback( array( &$this, 'importRevision' ) ); + $importer->doImport(); + } + + function importRevision( &$revision, &$importer ) { + $fname = 'CheckStorage::importRevision'; + + $id = $revision->getID(); + $text = $revision->getText(); + if ( $text === '' ) { + // This is what happens if the revision was broken at the time the + // dump was made. Unfortunately, it also happens if the revision was + // legitimately blank, so there's no way to tell the difference. To + // be safe, we'll skip it and leave it broken + $id = $id ? $id : ''; + echo "Revision $id is blank in the dump, may have been broken before export\n"; + return; + } + + if ( !$id ) { + // No ID, can't import + echo "No id tag in revision, can't import\n"; + return; + } + + // Find text row again + $dbr =& wfGetDB( DB_SLAVE ); + $oldId = $dbr->selectField( 'revision', 'rev_text_id', array( 'rev_id' => $id ), $fname ); + if ( !$oldId ) { + echo "Missing revision row for rev_id $id\n"; + return; + } + + // Compress the text + $flags = Revision::compressRevisionText( $text ); + + // Update the text row + $dbw->update( 'text', + array( 'old_flags' => $flags, 'old_text' => $text ), + array( 'old_id' => $oldId ), + $fname, array( 'LIMIT' => 1 ) + ); + + // Remove it from the unfixed list and add it to the fixed list + unset( $this->errors['restore text'][$id] ); + $this->errors['fixed'][$id] = true; + } +} +?> -- cgit v1.2.2