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-rw-r--r--maintenance/dumpTextPass.php180
1 files changed, 110 insertions, 70 deletions
diff --git a/maintenance/dumpTextPass.php b/maintenance/dumpTextPass.php
index 109584cc1305..187a38c49d8b 100644
--- a/maintenance/dumpTextPass.php
+++ b/maintenance/dumpTextPass.php
@@ -2,7 +2,7 @@
/**
* Script that postprocesses XML dumps from dumpBackup.php to add page text
*
- * Copyright © 2005 Brion Vibber <brion@pobox.com>, 2010 Alexandre Emsenhuber
+ * Copyright (C) 2005 Brion Vibber <brion@pobox.com>
* http://www.mediawiki.org/
*
* This program is free software; you can redistribute it and/or modify
@@ -35,6 +35,7 @@ require_once( 'backup.inc' );
class TextPassDumper extends BackupDumper {
var $prefetch = null;
var $input = "php://stdin";
+ var $history = WikiExporter::FULL;
var $fetchCount = 0;
var $prefetchCount = 0;
var $lastTime = 0;
@@ -73,11 +74,18 @@ class TextPassDumper extends BackupDumper {
if ( ini_get( 'display_errors' ) )
ini_set( 'display_errors', 'stderr' );
- $this->initProgress( $history );
+ $this->initProgress( $this->history );
$this->db = $this->backupDb();
- $this->readDump();
+ $this->egress = new ExportProgressFilter( $this->sink, $this );
+
+ $input = fopen( $this->input, "rt" );
+ $result = $this->readDump( $input );
+
+ if ( WikiError::isError( $result ) ) {
+ wfDie( $result->getMessage() );
+ }
if ( $this->spawnProc ) {
$this->closeSpawn();
@@ -98,6 +106,12 @@ class TextPassDumper extends BackupDumper {
case 'stub':
$this->input = $url;
break;
+ case 'current':
+ $this->history = WikiExporter::CURRENT;
+ break;
+ case 'full':
+ $this->history = WikiExporter::FULL;
+ break;
case 'spawn':
$this->spawn = true;
if ( $val ) {
@@ -190,76 +204,34 @@ class TextPassDumper extends BackupDumper {
}
}
- function readDump() {
- $state = '';
- $lastName = '';
+ function readDump( $input ) {
+ $this->buffer = "";
+ $this->openElement = false;
+ $this->atStart = true;
+ $this->state = "";
+ $this->lastName = "";
$this->thisPage = 0;
$this->thisRev = 0;
- $reader = new XMLReader();
- $reader->open( $this->input );
- $writer = new XMLWriter();
- $writer->openMemory();
-
-
- while ( $reader->read() ) {
- $tag = $reader->name;
- $type = $reader->nodeType;
-
- if ( $type == XmlReader::END_ELEMENT ) {
- $writer->endElement();
-
- if ( $tag == 'revision' ) {
- $this->revCount();
- $this->thisRev = '';
- } elseif ( $tag == 'page' ) {
- $this->reportPage();
- $this->thisPage = '';
- }
- } elseif ( $type == XmlReader::ELEMENT ) {
- $attribs = array();
- if ( $reader->hasAttributes ) {
- for ( $i = 0; $reader->moveToAttributeNo( $i ); $i++ ) {
- $attribs[$reader->name] = $reader->value;
- }
- }
+ $parser = xml_parser_create( "UTF-8" );
+ xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
- if ( $reader->isEmptyElement && $tag == 'text' && isset( $attribs['id'] ) ) {
- $writer->startElement( 'text' );
- $writer->writeAttribute( 'xml:space', 'preserve' );
- $text = $this->getText( $attribs['id'] );
- if ( strlen( $text ) ) {
- $writer->text( $text );
- }
- $writer->endElement();
- } else {
- $writer->startElement( $tag );
- foreach( $attribs as $name => $val ) {
- $writer->writeAttribute( $name, $val );
- }
- if ( $reader->isEmptyElement ) {
- $writer->endElement();
- }
- }
+ xml_set_element_handler( $parser, array( &$this, 'startElement' ), array( &$this, 'endElement' ) );
+ xml_set_character_data_handler( $parser, array( &$this, 'characterData' ) );
- $lastName = $tag;
- if ( $tag == 'revision' ) {
- $state = 'revision';
- } elseif ( $tag == 'page' ) {
- $state = 'page';
- }
- } elseif ( $type == XMLReader::SIGNIFICANT_WHITESPACE || $type == XMLReader::TEXT ) {
- if ( $lastName == 'id' ) {
- if ( $state == 'revision' ) {
- $this->thisRev .= $reader->value;
- } elseif ( $state == 'page' ) {
- $this->thisPage .= $reader->value;
- }
- }
- $writer->text( $reader->value );
+ $offset = 0; // for context extraction on error reporting
+ $bufferSize = 512 * 1024;
+ do {
+ $chunk = fread( $input, $bufferSize );
+ if ( !xml_parse( $parser, $chunk, feof( $input ) ) ) {
+ wfDebug( "TextDumpPass::readDump encountered XML parsing error\n" );
+ return new WikiXmlError( $parser, 'XML import parse failure', $chunk, $offset );
}
- $this->sink->write( $writer->outputMemory() );
- }
+ $offset += strlen( $chunk );
+ } while ( $chunk !== false && !feof( $input ) );
+ xml_parser_free( $parser );
+
+ return true;
}
function getText( $id ) {
@@ -282,6 +254,7 @@ class TextPassDumper extends BackupDumper {
}
private function doGetText( $id ) {
+
$id = intval( $id );
$this->failures = 0;
$ex = new MWException( "Graceful storage failure" );
@@ -469,13 +442,81 @@ class TextPassDumper extends BackupDumper {
$normalized = $wgContLang->normalize( $stripped );
return $normalized;
}
+
+ function startElement( $parser, $name, $attribs ) {
+ $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'] ) ) {
+ $text = $this->getText( $attribs['id'] );
+ $this->openElement = array( $name, array( 'xml:space' => 'preserve' ) );
+ if ( strlen( $text ) > 0 ) {
+ $this->characterData( $parser, $text );
+ }
+ } else {
+ $this->openElement = array( $name, $attribs );
+ }
+ }
+
+ function endElement( $parser, $name ) {
+ if ( $this->openElement ) {
+ $this->clearOpenElement( "" );
+ } else {
+ $this->buffer .= "</$name>";
+ }
+
+ if ( $name == 'revision' ) {
+ $this->egress->writeRevision( null, $this->buffer );
+ $this->buffer = "";
+ $this->thisRev = "";
+ } elseif ( $name == 'page' ) {
+ $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;
+ }
+ }
+ $this->buffer .= htmlspecialchars( $data );
+ }
+
+ function clearOpenElement( $style ) {
+ if ( $this->openElement ) {
+ $this->buffer .= Xml::element( $this->openElement[0], $this->openElement[1], $style );
+ $this->openElement = false;
+ }
+ }
}
$dumper = new TextPassDumper( $argv );
if ( !isset( $options['help'] ) ) {
- $dumper->dump( WikiExporter::FULL );
+ $dumper->dump( true );
} else {
$dumper->progress( <<<ENDS
This script postprocesses XML dumps from dumpBackup.php to add
@@ -489,12 +530,11 @@ Options:
--stub=<type>:<file> To load a compressed stub dump instead of stdin
--prefetch=<type>:<file> Use a prior dump file as a text source, to save
pressure on the database.
+ (Requires the XMLReader extension)
--quiet Don't dump status reports to stderr.
--report=n Report position and speed after every n pages processed.
(Default: 100)
--server=h Force reading from MySQL server h
- --output=<type>:<file> Write to a file instead of stdout
- <type>s: file, gzip, bzip2, 7zip
--current Base ETA on number of pages in database instead of all revisions
--spawn Spawn a subprocess for loading text records
--help Display this help message
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-23 05:22:55 +0000