X-Git-Url: https://git.heureux-cyclage.org/?p=lhc%2Fweb%2Fwiklou.git;a=blobdiff_plain;f=maintenance%2FdumpTextPass.php;h=a80ac7effa67a4a6c72954e2cee3f8ad9bc76533;hp=7566fe0ce82ffa32d3453ef2ad88eeb316ff3104;hb=7afced64454ad30d688540f7626448ac2faefebb;hpb=7621b57d958d0753236221227cbfb519d7faf192 diff --git a/maintenance/dumpTextPass.php b/maintenance/dumpTextPass.php index 7566fe0ce8..a80ac7effa 100644 --- a/maintenance/dumpTextPass.php +++ b/maintenance/dumpTextPass.php @@ -23,999 +23,7 @@ * @file * @ingroup Maintenance */ - -require_once __DIR__ . '/includes/BackupDumper.php'; -require_once __DIR__ . '/7zip.inc'; -require_once __DIR__ . '/../includes/export/WikiExporter.php'; - -use MediaWiki\MediaWikiServices; -use MediaWiki\Shell\Shell; -use MediaWiki\Storage\BlobAccessException; -use MediaWiki\Storage\SqlBlobStore; -use Wikimedia\Rdbms\IMaintainableDatabase; - -/** - * @ingroup Maintenance - */ -class TextPassDumper extends BackupDumper { - /** @var BaseDump */ - public $prefetch = null; - /** @var string|bool */ - private $thisPage; - /** @var string|bool */ - private $thisRev; - - // when we spend more than maxTimeAllowed seconds on this run, we continue - // processing until we write out the next complete page, then save output file(s), - // rename it/them and open new one(s) - public $maxTimeAllowed = 0; // 0 = no limit - - protected $input = "php://stdin"; - protected $history = WikiExporter::FULL; - protected $fetchCount = 0; - protected $prefetchCount = 0; - protected $prefetchCountLast = 0; - protected $fetchCountLast = 0; - - protected $maxFailures = 5; - protected $maxConsecutiveFailedTextRetrievals = 200; - protected $failureTimeout = 5; // Seconds to sleep after db failure - - protected $bufferSize = 524288; // In bytes. Maximum size to read from the stub in on go. - - protected $php = "php"; - protected $spawn = false; - - /** - * @var bool|resource - */ - protected $spawnProc = false; - - /** - * @var bool|resource - */ - protected $spawnWrite = false; - - /** - * @var bool|resource - */ - protected $spawnRead = false; - - /** - * @var bool|resource - */ - protected $spawnErr = false; - - /** - * @var bool|XmlDumpWriter - */ - protected $xmlwriterobj = false; - - protected $timeExceeded = false; - protected $firstPageWritten = false; - protected $lastPageWritten = false; - protected $checkpointJustWritten = false; - protected $checkpointFiles = []; - - /** - * @var IMaintainableDatabase - */ - protected $db; - - /** - * @param array|null $args For backward compatibility - */ - function __construct( $args = null ) { - parent::__construct(); - - $this->addDescription( <<stderr = fopen( "php://stderr", "wt" ); - - $this->addOption( 'stub', 'To load a compressed stub dump instead of stdin. ' . - 'Specify as --stub=:.', false, true ); - $this->addOption( 'prefetch', 'Use a prior dump file as a text source, to savepressure on the ' . - 'database. (Requires the XMLReader extension). Specify as --prefetch=:', - false, true ); - $this->addOption( 'maxtime', 'Write out checkpoint file after this many minutes (writing' . - 'out complete page, closing xml file properly, and opening new one' . - 'with header). This option requires the checkpointfile option.', false, true ); - $this->addOption( 'checkpointfile', 'Use this string for checkpoint filenames,substituting ' . - 'first pageid written for the first %s (required) and the last pageid written for the ' . - 'second %s if it exists.', false, true, false, true ); // This can be specified multiple times - $this->addOption( 'quiet', 'Don\'t dump status reports to stderr.' ); - $this->addOption( 'full', 'Dump all revisions of every page' ); - $this->addOption( 'current', 'Base ETA on number of pages in database instead of all revisions' ); - $this->addOption( 'spawn', 'Spawn a subprocess for loading text records' ); - $this->addOption( 'buffersize', 'Buffer size in bytes to use for reading the stub. ' . - '(Default: 512KB, Minimum: 4KB)', false, true ); - - if ( $args ) { - $this->loadWithArgv( $args ); - $this->processOptions(); - } - } - - /** - * @return SqlBlobStore - */ - private function getBlobStore() { - return MediaWikiServices::getInstance()->getBlobStore(); - } - - function execute() { - $this->processOptions(); - $this->dump( true ); - } - - function processOptions() { - parent::processOptions(); - - if ( $this->hasOption( 'buffersize' ) ) { - $this->bufferSize = max( intval( $this->getOption( 'buffersize' ) ), 4 * 1024 ); - } - - if ( $this->hasOption( 'prefetch' ) ) { - $url = $this->processFileOpt( $this->getOption( 'prefetch' ) ); - $this->prefetch = new BaseDump( $url ); - } - - if ( $this->hasOption( 'stub' ) ) { - $this->input = $this->processFileOpt( $this->getOption( 'stub' ) ); - } - - if ( $this->hasOption( 'maxtime' ) ) { - $this->maxTimeAllowed = intval( $this->getOption( 'maxtime' ) ) * 60; - } - - if ( $this->hasOption( 'checkpointfile' ) ) { - $this->checkpointFiles = $this->getOption( 'checkpointfile' ); - } - - if ( $this->hasOption( 'current' ) ) { - $this->history = WikiExporter::CURRENT; - } - - if ( $this->hasOption( 'full' ) ) { - $this->history = WikiExporter::FULL; - } - - if ( $this->hasOption( 'spawn' ) ) { - $this->spawn = true; - $val = $this->getOption( 'spawn' ); - if ( $val !== 1 ) { - $this->php = $val; - } - } - } - - /** - * Drop the database connection $this->db and try to get a new one. - * - * This function tries to get a /different/ connection if this is - * possible. Hence, (if this is possible) it switches to a different - * failover upon each call. - * - * This function resets $this->lb and closes all connections on it. - * - * @throws MWException - */ - function rotateDb() { - // Cleaning up old connections - if ( isset( $this->lb ) ) { - $this->lb->closeAll(); - unset( $this->lb ); - } - - if ( $this->forcedDb !== null ) { - $this->db = $this->forcedDb; - - return; - } - - if ( isset( $this->db ) && $this->db->isOpen() ) { - throw new MWException( 'DB is set and has not been closed by the Load Balancer' ); - } - - unset( $this->db ); - - // Trying to set up new connection. - // We do /not/ retry upon failure, but delegate to encapsulating logic, to avoid - // individually retrying at different layers of code. - - try { - $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory(); - $this->lb = $lbFactory->newMainLB(); - } catch ( Exception $e ) { - throw new MWException( __METHOD__ - . " rotating DB failed to obtain new load balancer (" . $e->getMessage() . ")" ); - } - - try { - $this->db = $this->lb->getConnection( DB_REPLICA, 'dump' ); - } catch ( Exception $e ) { - throw new MWException( __METHOD__ - . " rotating DB failed to obtain new database (" . $e->getMessage() . ")" ); - } - } - - function initProgress( $history = WikiExporter::FULL ) { - parent::initProgress(); - $this->timeOfCheckpoint = $this->startTime; - } - - function dump( $history, $text = WikiExporter::TEXT ) { - // Notice messages will foul up your XML output even if they're - // relatively harmless. - if ( ini_get( 'display_errors' ) ) { - ini_set( 'display_errors', 'stderr' ); - } - - $this->initProgress( $this->history ); - - // We are trying to get an initial database connection to avoid that the - // first try of this request's first call to getText fails. However, if - // obtaining a good DB connection fails it's not a serious issue, as - // getText does retry upon failure and can start without having a working - // DB connection. - try { - $this->rotateDb(); - } catch ( Exception $e ) { - // We do not even count this as failure. Just let eventual - // watchdogs know. - $this->progress( "Getting initial DB connection failed (" . - $e->getMessage() . ")" ); - } - - $this->egress = new ExportProgressFilter( $this->sink, $this ); - - // it would be nice to do it in the constructor, oh well. need egress set - $this->finalOptionCheck(); - - // we only want this so we know how to close a stream :-P - $this->xmlwriterobj = new XmlDumpWriter(); - - $input = fopen( $this->input, "rt" ); - $this->readDump( $input ); - - if ( $this->spawnProc ) { - $this->closeSpawn(); - } - - $this->report( true ); - } - - function processFileOpt( $opt ) { - $split = explode( ':', $opt, 2 ); - $val = $split[0]; - $param = ''; - if ( count( $split ) === 2 ) { - $param = $split[1]; - } - $fileURIs = explode( ';', $param ); - foreach ( $fileURIs as $URI ) { - switch ( $val ) { - case "file": - $newURI = $URI; - break; - case "gzip": - $newURI = "compress.zlib://$URI"; - break; - case "bzip2": - $newURI = "compress.bzip2://$URI"; - break; - case "7zip": - $newURI = "mediawiki.compress.7z://$URI"; - break; - default: - $newURI = $URI; - } - $newFileURIs[] = $newURI; - } - $val = implode( ';', $newFileURIs ); - - return $val; - } - - /** - * Overridden to include prefetch ratio if enabled. - */ - function showReport() { - if ( !$this->prefetch ) { - parent::showReport(); - - return; - } - - if ( $this->reporting ) { - $now = wfTimestamp( TS_DB ); - $nowts = microtime( true ); - $deltaAll = $nowts - $this->startTime; - $deltaPart = $nowts - $this->lastTime; - $this->pageCountPart = $this->pageCount - $this->pageCountLast; - $this->revCountPart = $this->revCount - $this->revCountLast; - - if ( $deltaAll ) { - $portion = $this->revCount / $this->maxCount; - $eta = $this->startTime + $deltaAll / $portion; - $etats = wfTimestamp( TS_DB, intval( $eta ) ); - if ( $this->fetchCount ) { - $fetchRate = 100.0 * $this->prefetchCount / $this->fetchCount; - } else { - $fetchRate = '-'; - } - $pageRate = $this->pageCount / $deltaAll; - $revRate = $this->revCount / $deltaAll; - } else { - $pageRate = '-'; - $revRate = '-'; - $etats = '-'; - $fetchRate = '-'; - } - if ( $deltaPart ) { - if ( $this->fetchCountLast ) { - $fetchRatePart = 100.0 * $this->prefetchCountLast / $this->fetchCountLast; - } else { - $fetchRatePart = '-'; - } - $pageRatePart = $this->pageCountPart / $deltaPart; - $revRatePart = $this->revCountPart / $deltaPart; - } else { - $fetchRatePart = '-'; - $pageRatePart = '-'; - $revRatePart = '-'; - } - $this->progress( sprintf( - "%s: %s (ID %d) %d pages (%0.1f|%0.1f/sec all|curr), " - . "%d revs (%0.1f|%0.1f/sec all|curr), %0.1f%%|%0.1f%% " - . "prefetched (all|curr), ETA %s [max %d]", - $now, wfWikiID(), $this->ID, $this->pageCount, $pageRate, - $pageRatePart, $this->revCount, $revRate, $revRatePart, - $fetchRate, $fetchRatePart, $etats, $this->maxCount - ) ); - $this->lastTime = $nowts; - $this->revCountLast = $this->revCount; - $this->prefetchCountLast = $this->prefetchCount; - $this->fetchCountLast = $this->fetchCount; - } - } - - function setTimeExceeded() { - $this->timeExceeded = true; - } - - function checkIfTimeExceeded() { - if ( $this->maxTimeAllowed - && ( $this->lastTime - $this->timeOfCheckpoint > $this->maxTimeAllowed ) - ) { - return true; - } - - return false; - } - - function finalOptionCheck() { - if ( ( $this->checkpointFiles && !$this->maxTimeAllowed ) - || ( $this->maxTimeAllowed && !$this->checkpointFiles ) - ) { - throw new MWException( "Options checkpointfile and maxtime must be specified together.\n" ); - } - foreach ( $this->checkpointFiles as $checkpointFile ) { - $count = substr_count( $checkpointFile, "%s" ); - if ( $count != 2 ) { - throw new MWException( "Option checkpointfile must contain two '%s' " - . "for substitution of first and last pageids, count is $count instead, " - . "file is $checkpointFile.\n" ); - } - } - - if ( $this->checkpointFiles ) { - $filenameList = (array)$this->egress->getFilenames(); - if ( count( $filenameList ) != count( $this->checkpointFiles ) ) { - throw new MWException( "One checkpointfile must be specified " - . "for each output option, if maxtime is used.\n" ); - } - } - } - - /** - * @throws MWException Failure to parse XML input - * @param string $input - * @return bool - */ - function readDump( $input ) { - $this->buffer = ""; - $this->openElement = false; - $this->atStart = true; - $this->state = ""; - $this->lastName = ""; - $this->thisPage = 0; - $this->thisRev = 0; - $this->thisRevModel = null; - $this->thisRevFormat = null; - - $parser = xml_parser_create( "UTF-8" ); - xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false ); - - xml_set_element_handler( - $parser, - [ $this, 'startElement' ], - [ $this, 'endElement' ] - ); - xml_set_character_data_handler( $parser, [ $this, 'characterData' ] ); - - $offset = 0; // for context extraction on error reporting - do { - if ( $this->checkIfTimeExceeded() ) { - $this->setTimeExceeded(); - } - $chunk = fread( $input, $this->bufferSize ); - if ( !xml_parse( $parser, $chunk, feof( $input ) ) ) { - wfDebug( "TextDumpPass::readDump encountered XML parsing error\n" ); - - $byte = xml_get_current_byte_index( $parser ); - $msg = wfMessage( 'xml-error-string', - 'XML import parse failure', - xml_get_current_line_number( $parser ), - xml_get_current_column_number( $parser ), - $byte . ( is_null( $chunk ) ? null : ( '; "' . substr( $chunk, $byte - $offset, 16 ) . '"' ) ), - xml_error_string( xml_get_error_code( $parser ) ) )->escaped(); - - xml_parser_free( $parser ); - - throw new MWException( $msg ); - } - $offset += strlen( $chunk ); - } while ( $chunk !== false && !feof( $input ) ); - if ( $this->maxTimeAllowed ) { - $filenameList = (array)$this->egress->getFilenames(); - // we wrote some stuff after last checkpoint that needs renamed - if ( file_exists( $filenameList[0] ) ) { - $newFilenames = []; - # we might have just written the header and footer and had no - # pages or revisions written... perhaps they were all deleted - # there's no pageID 0 so we use that. the caller is responsible - # for deciding what to do with a file containing only the - # siteinfo information and the mw tags. - if ( !$this->firstPageWritten ) { - $firstPageID = str_pad( 0, 9, "0", STR_PAD_LEFT ); - $lastPageID = str_pad( 0, 9, "0", STR_PAD_LEFT ); - } else { - $firstPageID = str_pad( $this->firstPageWritten, 9, "0", STR_PAD_LEFT ); - $lastPageID = str_pad( $this->lastPageWritten, 9, "0", STR_PAD_LEFT ); - } - - $filenameCount = count( $filenameList ); - for ( $i = 0; $i < $filenameCount; $i++ ) { - $checkpointNameFilledIn = sprintf( $this->checkpointFiles[$i], $firstPageID, $lastPageID ); - $fileinfo = pathinfo( $filenameList[$i] ); - $newFilenames[] = $fileinfo['dirname'] . '/' . $checkpointNameFilledIn; - } - $this->egress->closeAndRename( $newFilenames ); - } - } - xml_parser_free( $parser ); - - return true; - } - - /** - * Applies applicable export transformations to $text. - * - * @param string $text - * @param string $model - * @param string|null $format - * - * @return string - */ - private function exportTransform( $text, $model, $format = null ) { - try { - $handler = ContentHandler::getForModelID( $model ); - $text = $handler->exportTransform( $text, $format ); - } - catch ( MWException $ex ) { - $this->progress( - "Unable to apply export transformation for content model '$model': " . - $ex->getMessage() - ); - } - - return $text; - } - - /** - * Tries to load revision text. - * Export transformations are applied if the content model is given or can be - * determined from the database. - * - * Upon errors, retries (Up to $this->maxFailures tries each call). - * If still no good revision could be found even after this retrying, "" is returned. - * If no good revision text could be returned for - * $this->maxConsecutiveFailedTextRetrievals consecutive calls to getText, MWException - * is thrown. - * - * @param int|string $id Content address, or text row ID. - * @param string|bool|null $model The content model used to determine - * applicable export transformations. - * If $model is null, it will be determined from the database. - * @param string|null $format The content format used when applying export transformations. - * - * @throws MWException - * @return string The revision text for $id, or "" - */ - function getText( $id, $model = null, $format = null ) { - global $wgContentHandlerUseDB; - - $prefetchNotTried = true; // Whether or not we already tried to get the text via prefetch. - $text = false; // The candidate for a good text. false if no proper value. - $failures = 0; // The number of times, this invocation of getText already failed. - - // The number of times getText failed without yielding a good text in between. - static $consecutiveFailedTextRetrievals = 0; - - $this->fetchCount++; - - // To allow to simply return on success and do not have to worry about book keeping, - // we assume, this fetch works (possible after some retries). Nevertheless, we koop - // the old value, so we can restore it, if problems occur (See after the while loop). - $oldConsecutiveFailedTextRetrievals = $consecutiveFailedTextRetrievals; - $consecutiveFailedTextRetrievals = 0; - - if ( $model === null && $wgContentHandlerUseDB ) { - // TODO: MCR: use content table - $row = $this->db->selectRow( - 'revision', - [ 'rev_content_model', 'rev_content_format' ], - [ 'rev_id' => $this->thisRev ], - __METHOD__ - ); - - if ( $row ) { - $model = $row->rev_content_model; - $format = $row->rev_content_format; - } - } - - if ( $model === null || $model === '' ) { - $model = false; - } - - while ( $failures < $this->maxFailures ) { - // As soon as we found a good text for the $id, we will return immediately. - // Hence, if we make it past the try catch block, we know that we did not - // find a good text. - - try { - // Step 1: Get some text (or reuse from previous iteratuon if checking - // for plausibility failed) - - // Trying to get prefetch, if it has not been tried before - if ( $text === false && isset( $this->prefetch ) && $prefetchNotTried ) { - $prefetchNotTried = false; - $tryIsPrefetch = true; - $text = $this->prefetch->prefetch( (int)$this->thisPage, (int)$this->thisRev ); - - if ( $text === null ) { - $text = false; - } - - if ( is_string( $text ) && $model !== false ) { - // Apply export transformation to text coming from an old dump. - // The purpose of this transformation is to convert up from legacy - // formats, which may still be used in the older dump that is used - // for pre-fetching. Applying the transformation again should not - // interfere with content that is already in the correct form. - $text = $this->exportTransform( $text, $model, $format ); - } - } - - if ( $text === false ) { - // Fallback to asking the database - $tryIsPrefetch = false; - if ( $this->spawn ) { - $text = $this->getTextSpawned( $id ); - } else { - $text = $this->getTextDb( $id ); - } - - if ( $text !== false && $model !== false ) { - // Apply export transformation to text coming from the database. - // Prefetched text should already have transformations applied. - $text = $this->exportTransform( $text, $model, $format ); - } - - // No more checks for texts from DB for now. - // If we received something that is not false, - // We treat it as good text, regardless of whether it actually is or is not - if ( $text !== false ) { - return $text; - } - } - - if ( $text === false ) { - throw new MWException( "Generic error while obtaining text for id " . $id ); - } - - // We received a good candidate for the text of $id via some method - - // Step 2: Checking for plausibility and return the text if it is - // plausible - $revID = intval( $this->thisRev ); - if ( !isset( $this->db ) ) { - throw new MWException( "No database available" ); - } - - if ( $model !== CONTENT_MODEL_WIKITEXT ) { - $revLength = strlen( $text ); - } else { - $revLength = $this->db->selectField( 'revision', 'rev_len', [ 'rev_id' => $revID ] ); - } - - if ( strlen( $text ) == $revLength ) { - if ( $tryIsPrefetch ) { - $this->prefetchCount++; - } - - return $text; - } - - $text = false; - throw new MWException( "Received text is unplausible for id " . $id ); - } catch ( Exception $e ) { - $msg = "getting/checking text " . $id . " failed (" . $e->getMessage() . ")"; - if ( $failures + 1 < $this->maxFailures ) { - $msg .= " (Will retry " . ( $this->maxFailures - $failures - 1 ) . " more times)"; - } - $this->progress( $msg ); - } - - // Something went wrong; we did not a text that was plausible :( - $failures++; - - // A failure in a prefetch hit does not warrant resetting db connection etc. - if ( !$tryIsPrefetch ) { - // After backing off for some time, we try to reboot the whole process as - // much as possible to not carry over failures from one part to the other - // parts - sleep( $this->failureTimeout ); - try { - $this->rotateDb(); - if ( $this->spawn ) { - $this->closeSpawn(); - $this->openSpawn(); - } - } catch ( Exception $e ) { - $this->progress( "Rebooting getText infrastructure failed (" . $e->getMessage() . ")" . - " Trying to continue anyways" ); - } - } - } - - // Retirieving a good text for $id failed (at least) maxFailures times. - // We abort for this $id. - - // Restoring the consecutive failures, and maybe aborting, if the dump - // is too broken. - $consecutiveFailedTextRetrievals = $oldConsecutiveFailedTextRetrievals + 1; - if ( $consecutiveFailedTextRetrievals > $this->maxConsecutiveFailedTextRetrievals ) { - throw new MWException( "Graceful storage failure" ); - } - - return ""; - } - - /** - * Loads the serialized content from storage. - * - * @param int|string $id Content address, or text row ID. - * @return bool|string - */ - private function getTextDb( $id ) { - $store = $this->getBlobStore(); - $address = ( is_int( $id ) || strpos( $id, ':' ) === false ) - ? SqlBlobStore::makeAddressFromTextId( (int)$id ) - : $id; - - try { - $text = $store->getBlob( $address ); - - $stripped = str_replace( "\r", "", $text ); - $normalized = MediaWikiServices::getInstance()->getContentLanguage() - ->normalize( $stripped ); - - return $normalized; - } catch ( BlobAccessException $ex ) { - // XXX: log a warning? - return false; - } - } - - /** - * @param int|string $address Content address, or text row ID. - * @return bool|string - */ - private function getTextSpawned( $address ) { - Wikimedia\suppressWarnings(); - if ( !$this->spawnProc ) { - // First time? - $this->openSpawn(); - } - $text = $this->getTextSpawnedOnce( $address ); - Wikimedia\restoreWarnings(); - - return $text; - } - - function openSpawn() { - global $IP; - - if ( file_exists( "$IP/../multiversion/MWScript.php" ) ) { - $cmd = implode( " ", - array_map( [ Shell::class, 'escape' ], - [ - $this->php, - "$IP/../multiversion/MWScript.php", - "fetchText.php", - '--wiki', wfWikiID() ] ) ); - } else { - $cmd = implode( " ", - array_map( [ Shell::class, 'escape' ], - [ - $this->php, - "$IP/maintenance/fetchText.php", - '--wiki', wfWikiID() ] ) ); - } - $spec = [ - 0 => [ "pipe", "r" ], - 1 => [ "pipe", "w" ], - 2 => [ "file", "/dev/null", "a" ] ]; - $pipes = []; - - $this->progress( "Spawning database subprocess: $cmd" ); - $this->spawnProc = proc_open( $cmd, $spec, $pipes ); - if ( !$this->spawnProc ) { - $this->progress( "Subprocess spawn failed." ); - - return false; - } - list( - $this->spawnWrite, // -> stdin - $this->spawnRead, // <- stdout - ) = $pipes; - - return true; - } - - private function closeSpawn() { - Wikimedia\suppressWarnings(); - if ( $this->spawnRead ) { - fclose( $this->spawnRead ); - } - $this->spawnRead = false; - if ( $this->spawnWrite ) { - fclose( $this->spawnWrite ); - } - $this->spawnWrite = false; - if ( $this->spawnErr ) { - fclose( $this->spawnErr ); - } - $this->spawnErr = false; - if ( $this->spawnProc ) { - pclose( $this->spawnProc ); - } - $this->spawnProc = false; - Wikimedia\restoreWarnings(); - } - - /** - * @param int|string $address Content address, or text row ID. - * @return bool|string - */ - private function getTextSpawnedOnce( $address ) { - if ( is_int( $address ) || intval( $address ) ) { - $address = SqlBlobStore::makeAddressFromTextId( (int)$address ); - } - - $ok = fwrite( $this->spawnWrite, "$address\n" ); - // $this->progress( ">> $id" ); - if ( !$ok ) { - return false; - } - - $ok = fflush( $this->spawnWrite ); - // $this->progress( ">> [flush]" ); - if ( !$ok ) { - return false; - } - - // check that the text address they are sending is the one we asked for - // this avoids out of sync revision text errors we have encountered in the past - $newAddress = fgets( $this->spawnRead ); - if ( $newAddress === false ) { - return false; - } - $newAddress = trim( $newAddress ); - if ( strpos( $newAddress, ':' ) === false ) { - $newAddress = SqlBlobStore::makeAddressFromTextId( intval( $newAddress ) ); - } - - if ( $newAddress !== $address ) { - return false; - } - - $len = fgets( $this->spawnRead ); - // $this->progress( "<< " . trim( $len ) ); - if ( $len === false ) { - return false; - } - - $nbytes = intval( $len ); - // actual error, not zero-length text - if ( $nbytes < 0 ) { - return false; - } - - $text = ""; - - // Subprocess may not send everything at once, we have to loop. - while ( $nbytes > strlen( $text ) ) { - $buffer = fread( $this->spawnRead, $nbytes - strlen( $text ) ); - if ( $buffer === false ) { - break; - } - $text .= $buffer; - } - - $gotbytes = strlen( $text ); - if ( $gotbytes != $nbytes ) { - $this->progress( "Expected $nbytes bytes from database subprocess, got $gotbytes " ); - - return false; - } - - // Do normalization in the dump thread... - $stripped = str_replace( "\r", "", $text ); - $normalized = MediaWikiServices::getInstance()->getContentLanguage()-> - normalize( $stripped ); - - return $normalized; - } - - function startElement( $parser, $name, $attribs ) { - $this->checkpointJustWritten = false; - - $this->clearOpenElement( null ); - $this->lastName = $name; - - if ( $name == 'revision' ) { - $this->state = $name; - $this->egress->writeOpenPage( null, $this->buffer ); - $this->buffer = ""; - } elseif ( $name == 'page' ) { - $this->state = $name; - if ( $this->atStart ) { - $this->egress->writeOpenStream( $this->buffer ); - $this->buffer = ""; - $this->atStart = false; - } - } - - if ( $name == "text" && isset( $attribs['id'] ) ) { - $id = $attribs['id']; - $model = trim( $this->thisRevModel ); - $format = trim( $this->thisRevFormat ); - - $model = $model === '' ? null : $model; - $format = $format === '' ? null : $format; - - $text = $this->getText( $id, $model, $format ); - $this->openElement = [ $name, [ 'xml:space' => 'preserve' ] ]; - if ( strlen( $text ) > 0 ) { - $this->characterData( $parser, $text ); - } - } else { - $this->openElement = [ $name, $attribs ]; - } - } - - function endElement( $parser, $name ) { - $this->checkpointJustWritten = false; - - if ( $this->openElement ) { - $this->clearOpenElement( "" ); - } else { - $this->buffer .= ""; - } - - if ( $name == 'revision' ) { - $this->egress->writeRevision( null, $this->buffer ); - $this->buffer = ""; - $this->thisRev = ""; - $this->thisRevModel = null; - $this->thisRevFormat = null; - } elseif ( $name == 'page' ) { - if ( !$this->firstPageWritten ) { - $this->firstPageWritten = trim( $this->thisPage ); - } - $this->lastPageWritten = trim( $this->thisPage ); - if ( $this->timeExceeded ) { - $this->egress->writeClosePage( $this->buffer ); - // nasty hack, we can't just write the chardata after the - // page tag, it will include leading blanks from the next line - $this->egress->sink->write( "\n" ); - - $this->buffer = $this->xmlwriterobj->closeStream(); - $this->egress->writeCloseStream( $this->buffer ); - - $this->buffer = ""; - $this->thisPage = ""; - // this could be more than one file if we had more than one output arg - - $filenameList = (array)$this->egress->getFilenames(); - $newFilenames = []; - $firstPageID = str_pad( $this->firstPageWritten, 9, "0", STR_PAD_LEFT ); - $lastPageID = str_pad( $this->lastPageWritten, 9, "0", STR_PAD_LEFT ); - $filenamesCount = count( $filenameList ); - for ( $i = 0; $i < $filenamesCount; $i++ ) { - $checkpointNameFilledIn = sprintf( $this->checkpointFiles[$i], $firstPageID, $lastPageID ); - $fileinfo = pathinfo( $filenameList[$i] ); - $newFilenames[] = $fileinfo['dirname'] . '/' . $checkpointNameFilledIn; - } - $this->egress->closeRenameAndReopen( $newFilenames ); - $this->buffer = $this->xmlwriterobj->openStream(); - $this->timeExceeded = false; - $this->timeOfCheckpoint = $this->lastTime; - $this->firstPageWritten = false; - $this->checkpointJustWritten = true; - } else { - $this->egress->writeClosePage( $this->buffer ); - $this->buffer = ""; - $this->thisPage = ""; - } - } elseif ( $name == 'mediawiki' ) { - $this->egress->writeCloseStream( $this->buffer ); - $this->buffer = ""; - } - } - - function characterData( $parser, $data ) { - $this->clearOpenElement( null ); - if ( $this->lastName == "id" ) { - if ( $this->state == "revision" ) { - $this->thisRev .= $data; - } elseif ( $this->state == "page" ) { - $this->thisPage .= $data; - } - } elseif ( $this->lastName == "model" ) { - $this->thisRevModel .= $data; - } elseif ( $this->lastName == "format" ) { - $this->thisRevFormat .= $data; - } - - // have to skip the newline left over from closepagetag line of - // end of checkpoint files. nasty hack!! - if ( $this->checkpointJustWritten ) { - if ( $data[0] == "\n" ) { - $data = substr( $data, 1 ); - } - $this->checkpointJustWritten = false; - } - $this->buffer .= htmlspecialchars( $data ); - } - - function clearOpenElement( $style ) { - if ( $this->openElement ) { - $this->buffer .= Xml::element( $this->openElement[0], $this->openElement[1], $style ); - $this->openElement = false; - } - } -} +require_once __DIR__ . '/includes/TextPassDumper.php'; $maintClass = TextPassDumper::class; require_once RUN_MAINTENANCE_IF_MAIN;