User:Zellfaze/PageSecurity/Export.php
Each of these pages provides both the full source and instructions on how to patch the changes in.
Patch Changes
[edit]- Find the following line (around 142):
public function pageByTitle( $title ) {
- Add after:
// Begin of PageSecurity Extension patch
if (!$title->userCanRead()) {
return;
}
// End of PageSecurity Extension patch
Full Source Code
[edit]<?php
/**
* Base classes for dumps and export
*
* Copyright Š 2003, 2005, 2006 Brion Vibber <brion@pobox.com>
* http://www.mediawiki.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* @defgroup Dump Dump
*/
/**
* @ingroup SpecialPage Dump
*/
class WikiExporter {
var $list_authors = false ; # Return distinct author list (when not returning full history)
var $author_list = "" ;
var $dumpUploads = false;
var $dumpUploadFileContents = false;
const FULL = 1;
const CURRENT = 2;
const STABLE = 4; // extension defined
const LOGS = 8;
const RANGE = 16;
const BUFFER = 0;
const STREAM = 1;
const TEXT = 0;
const STUB = 1;
/**
* If using WikiExporter::STREAM to stream a large amount of data,
* provide a database connection which is not managed by
* LoadBalancer to read from: some history blob types will
* make additional queries to pull source data while the
* main query is still running.
*
* @param $db Database
* @param $history Mixed: one of WikiExporter::FULL, WikiExporter::CURRENT,
* WikiExporter::RANGE or WikiExporter::STABLE,
* or an associative array:
* offset: non-inclusive offset at which to start the query
* limit: maximum number of rows to return
* dir: "asc" or "desc" timestamp order
* @param $buffer Int: one of WikiExporter::BUFFER or WikiExporter::STREAM
* @param $text Int: one of WikiExporter::TEXT or WikiExporter::STUB
*/
function __construct( &$db, $history = WikiExporter::CURRENT,
$buffer = WikiExporter::BUFFER, $text = WikiExporter::TEXT ) {
$this->db =& $db;
$this->history = $history;
$this->buffer = $buffer;
$this->writer = new XmlDumpWriter();
$this->sink = new DumpOutput();
$this->text = $text;
}
/**
* Set the DumpOutput or DumpFilter object which will receive
* various row objects and XML output for filtering. Filters
* can be chained or used as callbacks.
*
* @param $sink mixed
*/
public function setOutputSink( &$sink ) {
$this->sink =& $sink;
}
public function openStream() {
$output = $this->writer->openStream();
$this->sink->writeOpenStream( $output );
}
public function closeStream() {
$output = $this->writer->closeStream();
$this->sink->writeCloseStream( $output );
}
/**
* Dumps a series of page and revision records for all pages
* in the database, either including complete history or only
* the most recent version.
*/
public function allPages() {
return $this->dumpFrom( '' );
}
/**
* Dumps a series of page and revision records for those pages
* in the database falling within the page_id range given.
* @param $start Int: inclusive lower limit (this id is included)
* @param $end Int: Exclusive upper limit (this id is not included)
* If 0, no upper limit.
*/
public function pagesByRange( $start, $end ) {
$condition = 'page_id >= ' . intval( $start );
if ( $end ) {
$condition .= ' AND page_id < ' . intval( $end );
}
return $this->dumpFrom( $condition );
}
/**
* Dumps a series of page and revision records for those pages
* in the database with revisions falling within the rev_id range given.
* @param $start Int: inclusive lower limit (this id is included)
* @param $end Int: Exclusive upper limit (this id is not included)
* If 0, no upper limit.
*/
public function revsByRange( $start, $end ) {
$condition = 'rev_id >= ' . intval( $start );
if ( $end ) {
$condition .= ' AND rev_id < ' . intval( $end );
}
return $this->dumpFrom( $condition );
}
/**
* @param $title Title
*/
public function pageByTitle( $title ) {
// Begin of PageSecurity Extension patch
if (!$title->userCanRead()) {
return;
}
// End of PageSecurity Extension patch
return $this->dumpFrom(
'page_namespace=' . $title->getNamespace() .
' AND page_title=' . $this->db->addQuotes( $title->getDBkey() ) );
}
public function pageByName( $name ) {
$title = Title::newFromText( $name );
if ( is_null( $title ) ) {
throw new MWException( "Can't export invalid title" );
} else {
return $this->pageByTitle( $title );
}
}
public function pagesByName( $names ) {
foreach ( $names as $name ) {
$this->pageByName( $name );
}
}
public function allLogs() {
return $this->dumpFrom( '' );
}
public function logsByRange( $start, $end ) {
$condition = 'log_id >= ' . intval( $start );
if ( $end ) {
$condition .= ' AND log_id < ' . intval( $end );
}
return $this->dumpFrom( $condition );
}
# Generates the distinct list of authors of an article
# Not called by default (depends on $this->list_authors)
# Can be set by Special:Export when not exporting whole history
protected function do_list_authors( $cond ) {
wfProfileIn( __METHOD__ );
$this->author_list = "<contributors>";
// rev_deleted
$res = $this->db->select(
array( 'page', 'revision' ),
array( 'DISTINCT rev_user_text', 'rev_user' ),
array(
$this->db->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0',
$cond,
'page_id = rev_id',
),
__METHOD__
);
foreach ( $res as $row ) {
$this->author_list .= "<contributor>" .
"<username>" .
htmlentities( $row->rev_user_text ) .
"</username>" .
"<id>" .
$row->rev_user .
"</id>" .
"</contributor>";
}
$this->author_list .= "</contributors>";
wfProfileOut( __METHOD__ );
}
protected function dumpFrom( $cond = '' ) {
wfProfileIn( __METHOD__ );
# For logging dumps...
if ( $this->history & self::LOGS ) {
if ( $this->buffer == WikiExporter::STREAM ) {
$prev = $this->db->bufferResults( false );
}
$where = array( 'user_id = log_user' );
# Hide private logs
$hideLogs = LogEventsList::getExcludeClause( $this->db );
if ( $hideLogs ) $where[] = $hideLogs;
# Add on any caller specified conditions
if ( $cond ) $where[] = $cond;
# Get logging table name for logging.* clause
$logging = $this->db->tableName( 'logging' );
$result = $this->db->select( array( 'logging', 'user' ),
array( "{$logging}.*", 'user_name' ), // grab the user name
$where,
__METHOD__,
array( 'ORDER BY' => 'log_id', 'USE INDEX' => array( 'logging' => 'PRIMARY' ) )
);
$wrapper = $this->db->resultObject( $result );
$this->outputLogStream( $wrapper );
if ( $this->buffer == WikiExporter::STREAM ) {
$this->db->bufferResults( $prev );
}
# For page dumps...
} else {
$tables = array( 'page', 'revision' );
$opts = array( 'ORDER BY' => 'page_id ASC' );
$opts['USE INDEX'] = array();
$join = array();
if ( is_array( $this->history ) ) {
# Time offset/limit for all pages/history...
$revJoin = 'page_id=rev_page';
# Set time order
if ( $this->history['dir'] == 'asc' ) {
$op = '>';
$opts['ORDER BY'] = 'rev_timestamp ASC';
} else {
$op = '<';
$opts['ORDER BY'] = 'rev_timestamp DESC';
}
# Set offset
if ( !empty( $this->history['offset'] ) ) {
$revJoin .= " AND rev_timestamp $op " .
$this->db->addQuotes( $this->db->timestamp( $this->history['offset'] ) );
}
$join['revision'] = array( 'INNER JOIN', $revJoin );
# Set query limit
if ( !empty( $this->history['limit'] ) ) {
$opts['LIMIT'] = intval( $this->history['limit'] );
}
} elseif ( $this->history & WikiExporter::FULL ) {
# Full history dumps...
$join['revision'] = array( 'INNER JOIN', 'page_id=rev_page' );
} elseif ( $this->history & WikiExporter::CURRENT ) {
# Latest revision dumps...
if ( $this->list_authors && $cond != '' ) { // List authors, if so desired
$this->do_list_authors( $cond );
}
$join['revision'] = array( 'INNER JOIN', 'page_id=rev_page AND page_latest=rev_id' );
} elseif ( $this->history & WikiExporter::STABLE ) {
# "Stable" revision dumps...
# Default JOIN, to be overridden...
$join['revision'] = array( 'INNER JOIN', 'page_id=rev_page AND page_latest=rev_id' );
# One, and only one hook should set this, and return false
if ( wfRunHooks( 'WikiExporter::dumpStableQuery', array( &$tables, &$opts, &$join ) ) ) {
wfProfileOut( __METHOD__ );
throw new MWException( __METHOD__ . " given invalid history dump type." );
}
} elseif ( $this->history & WikiExporter::RANGE ) {
# Dump of revisions within a specified range
$join['revision'] = array( 'INNER JOIN', 'page_id=rev_page' );
$opts['ORDER BY'] = 'rev_page ASC, rev_id ASC';
} else {
# Uknown history specification parameter?
wfProfileOut( __METHOD__ );
throw new MWException( __METHOD__ . " given invalid history dump type." );
}
# Query optimization hacks
if ( $cond == '' ) {
$opts[] = 'STRAIGHT_JOIN';
$opts['USE INDEX']['page'] = 'PRIMARY';
}
# Build text join options
if ( $this->text != WikiExporter::STUB ) { // 1-pass
$tables[] = 'text';
$join['text'] = array( 'INNER JOIN', 'rev_text_id=old_id' );
}
if ( $this->buffer == WikiExporter::STREAM ) {
$prev = $this->db->bufferResults( false );
}
wfRunHooks( 'ModifyExportQuery',
array( $this->db, &$tables, &$cond, &$opts, &$join ) );
# Do the query!
$result = $this->db->select( $tables, '*', $cond, __METHOD__, $opts, $join );
$wrapper = $this->db->resultObject( $result );
# Output dump results
$this->outputPageStream( $wrapper );
if ( $this->list_authors ) {
$this->outputPageStream( $wrapper );
}
if ( $this->buffer == WikiExporter::STREAM ) {
$this->db->bufferResults( $prev );
}
}
wfProfileOut( __METHOD__ );
}
/**
* Runs through a query result set dumping page and revision records.
* The result set should be sorted/grouped by page to avoid duplicate
* page records in the output.
*
* The result set will be freed once complete. Should be safe for
* streaming (non-buffered) queries, as long as it was made on a
* separate database connection not managed by LoadBalancer; some
* blob storage types will make queries to pull source data.
*
* @param $resultset ResultWrapper
*/
protected function outputPageStream( $resultset ) {
$last = null;
foreach ( $resultset as $row ) {
if ( is_null( $last ) ||
$last->page_namespace != $row->page_namespace ||
$last->page_title != $row->page_title ) {
if ( isset( $last ) ) {
$output = '';
if ( $this->dumpUploads ) {
$output .= $this->writer->writeUploads( $last, $this->dumpUploadFileContents );
}
$output .= $this->writer->closePage();
$this->sink->writeClosePage( $output );
}
$output = $this->writer->openPage( $row );
$this->sink->writeOpenPage( $row, $output );
$last = $row;
}
$output = $this->writer->writeRevision( $row );
$this->sink->writeRevision( $row, $output );
}
if ( isset( $last ) ) {
$output = '';
if ( $this->dumpUploads ) {
$output .= $this->writer->writeUploads( $last, $this->dumpUploadFileContents );
}
$output .= $this->author_list;
$output .= $this->writer->closePage();
$this->sink->writeClosePage( $output );
}
}
protected function outputLogStream( $resultset ) {
foreach ( $resultset as $row ) {
$output = $this->writer->writeLogItem( $row );
$this->sink->writeLogItem( $row, $output );
}
}
}
/**
* @ingroup Dump
*/
class XmlDumpWriter {
/**
* Returns the export schema version.
* @return string
*/
function schemaVersion() {
return "0.5";
}
/**
* Opens the XML output stream's root <mediawiki> element.
* This does not include an xml directive, so is safe to include
* as a subelement in a larger XML stream. Namespace and XML Schema
* references are included.
*
* Output will be encoded in UTF-8.
*
* @return string
*/
function openStream() {
global $wgLanguageCode;
$ver = $this->schemaVersion();
return Xml::element( 'mediawiki', array(
'xmlns' => "http://www.mediawiki.org/xml/export-$ver/",
'xmlns:xsi' => "http://www.w3.org/2001/XMLSchema-instance",
'xsi:schemaLocation' => "http://www.mediawiki.org/xml/export-$ver/ " .
"http://www.mediawiki.org/xml/export-$ver.xsd",
'version' => $ver,
'xml:lang' => $wgLanguageCode ),
null ) .
"\n" .
$this->siteInfo();
}
function siteInfo() {
$info = array(
$this->sitename(),
$this->homelink(),
$this->generator(),
$this->caseSetting(),
$this->namespaces() );
return " <siteinfo>\n " .
implode( "\n ", $info ) .
"\n </siteinfo>\n";
}
function sitename() {
global $wgSitename;
return Xml::element( 'sitename', array(), $wgSitename );
}
function generator() {
global $wgVersion;
return Xml::element( 'generator', array(), "MediaWiki $wgVersion" );
}
function homelink() {
return Xml::element( 'base', array(), Title::newMainPage()->getCanonicalUrl() );
}
function caseSetting() {
global $wgCapitalLinks;
// "case-insensitive" option is reserved for future
$sensitivity = $wgCapitalLinks ? 'first-letter' : 'case-sensitive';
return Xml::element( 'case', array(), $sensitivity );
}
function namespaces() {
global $wgContLang;
$spaces = "<namespaces>\n";
foreach ( $wgContLang->getFormattedNamespaces() as $ns => $title ) {
$spaces .= ' ' .
Xml::element( 'namespace',
array( 'key' => $ns,
'case' => MWNamespace::isCapitalized( $ns ) ? 'first-letter' : 'case-sensitive',
), $title ) . "\n";
}
$spaces .= " </namespaces>";
return $spaces;
}
/**
* Closes the output stream with the closing root element.
* Call when finished dumping things.
*
* @return string
*/
function closeStream() {
return "</mediawiki>\n";
}
/**
* Opens a <page> section on the output stream, with data
* from the given database row.
*
* @param $row object
* @return string
* @access private
*/
function openPage( $row ) {
$out = " <page>\n";
$title = Title::makeTitle( $row->page_namespace, $row->page_title );
$out .= ' ' . Xml::elementClean( 'title', array(), self::canonicalTitle( $title ) ) . "\n";
$out .= ' ' . Xml::element( 'id', array(), strval( $row->page_id ) ) . "\n";
if ( $row->page_is_redirect ) {
$out .= ' ' . Xml::element( 'redirect', array() ) . "\n";
}
if ( $row->page_restrictions != '' ) {
$out .= ' ' . Xml::element( 'restrictions', array(),
strval( $row->page_restrictions ) ) . "\n";
}
wfRunHooks( 'XmlDumpWriterOpenPage', array( $this, &$out, $row, $title ) );
return $out;
}
/**
* Closes a <page> section on the output stream.
*
* @access private
*/
function closePage() {
return " </page>\n";
}
/**
* Dumps a <revision> section on the output stream, with
* data filled in from the given database row.
*
* @param $row object
* @return string
* @access private
*/
function writeRevision( $row ) {
wfProfileIn( __METHOD__ );
$out = " <revision>\n";
$out .= " " . Xml::element( 'id', null, strval( $row->rev_id ) ) . "\n";
$out .= $this->writeTimestamp( $row->rev_timestamp );
if ( $row->rev_deleted & Revision::DELETED_USER ) {
$out .= " " . Xml::element( 'contributor', array( 'deleted' => 'deleted' ) ) . "\n";
} else {
$out .= $this->writeContributor( $row->rev_user, $row->rev_user_text );
}
if ( $row->rev_minor_edit ) {
$out .= " <minor/>\n";
}
if ( $row->rev_deleted & Revision::DELETED_COMMENT ) {
$out .= " " . Xml::element( 'comment', array( 'deleted' => 'deleted' ) ) . "\n";
} elseif ( $row->rev_comment != '' ) {
$out .= " " . Xml::elementClean( 'comment', null, strval( $row->rev_comment ) ) . "\n";
}
$text = '';
if ( $row->rev_deleted & Revision::DELETED_TEXT ) {
$out .= " " . Xml::element( 'text', array( 'deleted' => 'deleted' ) ) . "\n";
} elseif ( isset( $row->old_text ) ) {
// Raw text from the database may have invalid chars
$text = strval( Revision::getRevisionText( $row ) );
$out .= " " . Xml::elementClean( 'text',
array( 'xml:space' => 'preserve', 'bytes' => $row->rev_len ),
strval( $text ) ) . "\n";
} else {
// Stub output
$out .= " " . Xml::element( 'text',
array( 'id' => $row->rev_text_id, 'bytes' => $row->rev_len ),
"" ) . "\n";
}
wfRunHooks( 'XmlDumpWriterWriteRevision', array( &$this, &$out, $row, $text ) );
$out .= " </revision>\n";
wfProfileOut( __METHOD__ );
return $out;
}
/**
* Dumps a <logitem> section on the output stream, with
* data filled in from the given database row.
*
* @param $row object
* @return string
* @access private
*/
function writeLogItem( $row ) {
wfProfileIn( __METHOD__ );
$out = " <logitem>\n";
$out .= " " . Xml::element( 'id', null, strval( $row->log_id ) ) . "\n";
$out .= $this->writeTimestamp( $row->log_timestamp );
if ( $row->log_deleted & LogPage::DELETED_USER ) {
$out .= " " . Xml::element( 'contributor', array( 'deleted' => 'deleted' ) ) . "\n";
} else {
$out .= $this->writeContributor( $row->log_user, $row->user_name );
}
if ( $row->log_deleted & LogPage::DELETED_COMMENT ) {
$out .= " " . Xml::element( 'comment', array( 'deleted' => 'deleted' ) ) . "\n";
} elseif ( $row->log_comment != '' ) {
$out .= " " . Xml::elementClean( 'comment', null, strval( $row->log_comment ) ) . "\n";
}
$out .= " " . Xml::element( 'type', null, strval( $row->log_type ) ) . "\n";
$out .= " " . Xml::element( 'action', null, strval( $row->log_action ) ) . "\n";
if ( $row->log_deleted & LogPage::DELETED_ACTION ) {
$out .= " " . Xml::element( 'text', array( 'deleted' => 'deleted' ) ) . "\n";
} else {
$title = Title::makeTitle( $row->log_namespace, $row->log_title );
$out .= " " . Xml::elementClean( 'logtitle', null, self::canonicalTitle( $title ) ) . "\n";
$out .= " " . Xml::elementClean( 'params',
array( 'xml:space' => 'preserve' ),
strval( $row->log_params ) ) . "\n";
}
$out .= " </logitem>\n";
wfProfileOut( __METHOD__ );
return $out;
}
function writeTimestamp( $timestamp ) {
$ts = wfTimestamp( TS_ISO_8601, $timestamp );
return " " . Xml::element( 'timestamp', null, $ts ) . "\n";
}
function writeContributor( $id, $text ) {
$out = " <contributor>\n";
if ( $id ) {
$out .= " " . Xml::elementClean( 'username', null, strval( $text ) ) . "\n";
$out .= " " . Xml::element( 'id', null, strval( $id ) ) . "\n";
} else {
$out .= " " . Xml::elementClean( 'ip', null, strval( $text ) ) . "\n";
}
$out .= " </contributor>\n";
return $out;
}
/**
* Warning! This data is potentially inconsistent. :(
*/
function writeUploads( $row, $dumpContents = false ) {
if ( $row->page_namespace == NS_IMAGE ) {
$img = wfLocalFile( $row->page_title );
if ( $img && $img->exists() ) {
$out = '';
foreach ( array_reverse( $img->getHistory() ) as $ver ) {
$out .= $this->writeUpload( $ver, $dumpContents );
}
$out .= $this->writeUpload( $img, $dumpContents );
return $out;
}
}
return '';
}
/**
* @param $file File
* @param $dumpContents bool
* @return string
*/
function writeUpload( $file, $dumpContents = false ) {
if ( $file->isOld() ) {
$archiveName = " " .
Xml::element( 'archivename', null, $file->getArchiveName() ) . "\n";
} else {
$archiveName = '';
}
if ( $dumpContents ) {
# Dump file as base64
# Uses only XML-safe characters, so does not need escaping
$contents = ' <contents encoding="base64">' .
chunk_split( base64_encode( file_get_contents( $file->getPath() ) ) ) .
" </contents>\n";
} else {
$contents = '';
}
return " <upload>\n" .
$this->writeTimestamp( $file->getTimestamp() ) .
$this->writeContributor( $file->getUser( 'id' ), $file->getUser( 'text' ) ) .
" " . Xml::elementClean( 'comment', null, $file->getDescription() ) . "\n" .
" " . Xml::element( 'filename', null, $file->getName() ) . "\n" .
$archiveName .
" " . Xml::element( 'src', null, $file->getCanonicalUrl() ) . "\n" .
" " . Xml::element( 'size', null, $file->getSize() ) . "\n" .
" " . Xml::element( 'sha1base36', null, $file->getSha1() ) . "\n" .
" " . Xml::element( 'rel', null, $file->getRel() ) . "\n" .
$contents .
" </upload>\n";
}
/**
* Return prefixed text form of title, but using the content language's
* canonical namespace. This skips any special-casing such as gendered
* user namespaces -- which while useful, are not yet listed in the
* XML <siteinfo> data so are unsafe in export.
*
* @param Title $title
* @return string
*/
public static function canonicalTitle( Title $title ) {
if ( $title->getInterwiki() ) {
return $title->getPrefixedText();
}
global $wgContLang;
$prefix = str_replace( '_', ' ', $wgContLang->getNsText( $title->getNamespace() ) );
if ($prefix !== '') {
$prefix .= ':';
}
return $prefix . $title->getText();
}
}
/**
* Base class for output stream; prints to stdout or buffer or whereever.
* @ingroup Dump
*/
class DumpOutput {
function writeOpenStream( $string ) {
$this->write( $string );
}
function writeCloseStream( $string ) {
$this->write( $string );
}
function writeOpenPage( $page, $string ) {
$this->write( $string );
}
function writeClosePage( $string ) {
$this->write( $string );
}
function writeRevision( $rev, $string ) {
$this->write( $string );
}
function writeLogItem( $rev, $string ) {
$this->write( $string );
}
/**
* Override to write to a different stream type.
* @return bool
*/
function write( $string ) {
print $string;
}
/**
* Close the old file, move it to a specified name,
* and reopen new file with the old name. Use this
* for writing out a file in multiple pieces
* at specified checkpoints (e.g. every n hours).
* @param $newname mixed File name. May be a string or an array with one element
*/
function closeRenameAndReopen( $newname ) {
return;
}
/**
* Close the old file, and move it to a specified name.
* Use this for the last piece of a file written out
* at specified checkpoints (e.g. every n hours).
* @param $newname mixed File name. May be a string or an array with one element
* @param $open bool If true, a new file with the old filename will be opened again for writing (default: false)
*/
function closeAndRename( $newname, $open = false ) {
return;
}
/**
* Returns the name of the file or files which are
* being written to, if there are any.
*/
function getFilenames() {
return NULL;
}
}
/**
* Stream outputter to send data to a file.
* @ingroup Dump
*/
class DumpFileOutput extends DumpOutput {
protected $handle, $filename;
function __construct( $file ) {
$this->handle = fopen( $file, "wt" );
$this->filename = $file;
}
function write( $string ) {
fputs( $this->handle, $string );
}
function closeRenameAndReopen( $newname ) {
$this->closeAndRename( $newname, true );
}
function renameOrException( $newname ) {
if (! rename( $this->filename, $newname ) ) {
throw new MWException( __METHOD__ . ": rename of file {$this->filename} to $newname failed\n" );
}
}
function checkRenameArgCount( $newname ) {
if ( is_array( $newname ) ) {
if ( count( $newname ) > 1 ) {
throw new MWException( __METHOD__ . ": passed multiple arguments for rename of single file\n" );
} else {
$newname = $newname[0];
}
}
return $newname;
}
function closeAndRename( $newname, $open = false ) {
$newname = $this->checkRenameArgCount( $newname );
if ( $newname ) {
fclose( $this->handle );
$this->renameOrException( $newname );
if ( $open ) {
$this->handle = fopen( $this->filename, "wt" );
}
}
}
function getFilenames() {
return $this->filename;
}
}
/**
* Stream outputter to send data to a file via some filter program.
* Even if compression is available in a library, using a separate
* program can allow us to make use of a multi-processor system.
* @ingroup Dump
*/
class DumpPipeOutput extends DumpFileOutput {
protected $command, $filename;
function __construct( $command, $file = null ) {
if ( !is_null( $file ) ) {
$command .= " > " . wfEscapeShellArg( $file );
}
$this->startCommand( $command );
$this->command = $command;
$this->filename = $file;
}
function startCommand( $command ) {
$spec = array(
0 => array( "pipe", "r" ),
);
$pipes = array();
$this->procOpenResource = proc_open( $command, $spec, $pipes );
$this->handle = $pipes[0];
}
function closeRenameAndReopen( $newname ) {
$this->closeAndRename( $newname, true );
}
function closeAndRename( $newname, $open = false ) {
$newname = $this->checkRenameArgCount( $newname );
if ( $newname ) {
fclose( $this->handle );
proc_close( $this->procOpenResource );
$this->renameOrException( $newname );
if ( $open ) {
$command = $this->command;
$command .= " > " . wfEscapeShellArg( $this->filename );
$this->startCommand( $command );
}
}
}
}
/**
* Sends dump output via the gzip compressor.
* @ingroup Dump
*/
class DumpGZipOutput extends DumpPipeOutput {
function __construct( $file ) {
parent::__construct( "gzip", $file );
}
}
/**
* Sends dump output via the bgzip2 compressor.
* @ingroup Dump
*/
class DumpBZip2Output extends DumpPipeOutput {
function __construct( $file ) {
parent::__construct( "bzip2", $file );
}
}
/**
* Sends dump output via the p7zip compressor.
* @ingroup Dump
*/
class Dump7ZipOutput extends DumpPipeOutput {
protected $filename;
function __construct( $file ) {
$command = $this->setup7zCommand( $file );
parent::__construct( $command );
$this->filename = $file;
}
function setup7zCommand( $file ) {
$command = "7za a -bd -si " . wfEscapeShellArg( $file );
// Suppress annoying useless crap from p7zip
// Unfortunately this could suppress real error messages too
$command .= ' >' . wfGetNull() . ' 2>&1';
return( $command );
}
function closeRenameAndReopen( $newname ) {
$this->closeAndRename( $newname, true );
}
function closeAndRename( $newname, $open = false ) {
$newname = $this->checkRenameArgCount( $newname );
if ( $newname ) {
fclose( $this->handle );
proc_close( $this->procOpenResource );
$this->renameOrException( $newname );
if ( $open ) {
$command = $this->setup7zCommand( $file );
$this->startCommand( $command );
}
}
}
}
/**
* Dump output filter class.
* This just does output filtering and streaming; XML formatting is done
* higher up, so be careful in what you do.
* @ingroup Dump
*/
class DumpFilter {
function __construct( &$sink ) {
$this->sink =& $sink;
}
function writeOpenStream( $string ) {
$this->sink->writeOpenStream( $string );
}
function writeCloseStream( $string ) {
$this->sink->writeCloseStream( $string );
}
function writeOpenPage( $page, $string ) {
$this->sendingThisPage = $this->pass( $page, $string );
if ( $this->sendingThisPage ) {
$this->sink->writeOpenPage( $page, $string );
}
}
function writeClosePage( $string ) {
if ( $this->sendingThisPage ) {
$this->sink->writeClosePage( $string );
$this->sendingThisPage = false;
}
}
function writeRevision( $rev, $string ) {
if ( $this->sendingThisPage ) {
$this->sink->writeRevision( $rev, $string );
}
}
function writeLogItem( $rev, $string ) {
$this->sink->writeRevision( $rev, $string );
}
function closeRenameAndReopen( $newname ) {
$this->sink->closeRenameAndReopen( $newname );
}
function closeAndRename( $newname, $open = false ) {
$this->sink->closeAndRename( $newname, $open );
}
function getFilenames() {
return $this->sink->getFilenames();
}
/**
* Override for page-based filter types.
* @return bool
*/
function pass( $page ) {
return true;
}
}
/**
* Simple dump output filter to exclude all talk pages.
* @ingroup Dump
*/
class DumpNotalkFilter extends DumpFilter {
function pass( $page ) {
return !MWNamespace::isTalk( $page->page_namespace );
}
}
/**
* Dump output filter to include or exclude pages in a given set of namespaces.
* @ingroup Dump
*/
class DumpNamespaceFilter extends DumpFilter {
var $invert = false;
var $namespaces = array();
function __construct( &$sink, $param ) {
parent::__construct( $sink );
$constants = array(
"NS_MAIN" => NS_MAIN,
"NS_TALK" => NS_TALK,
"NS_USER" => NS_USER,
"NS_USER_TALK" => NS_USER_TALK,
"NS_PROJECT" => NS_PROJECT,
"NS_PROJECT_TALK" => NS_PROJECT_TALK,
"NS_FILE" => NS_FILE,
"NS_FILE_TALK" => NS_FILE_TALK,
"NS_IMAGE" => NS_IMAGE, // NS_IMAGE is an alias for NS_FILE
"NS_IMAGE_TALK" => NS_IMAGE_TALK,
"NS_MEDIAWIKI" => NS_MEDIAWIKI,
"NS_MEDIAWIKI_TALK" => NS_MEDIAWIKI_TALK,
"NS_TEMPLATE" => NS_TEMPLATE,
"NS_TEMPLATE_TALK" => NS_TEMPLATE_TALK,
"NS_HELP" => NS_HELP,
"NS_HELP_TALK" => NS_HELP_TALK,
"NS_CATEGORY" => NS_CATEGORY,
"NS_CATEGORY_TALK" => NS_CATEGORY_TALK );
if ( $param { 0 } == '!' ) {
$this->invert = true;
$param = substr( $param, 1 );
}
foreach ( explode( ',', $param ) as $key ) {
$key = trim( $key );
if ( isset( $constants[$key] ) ) {
$ns = $constants[$key];
$this->namespaces[$ns] = true;
} elseif ( is_numeric( $key ) ) {
$ns = intval( $key );
$this->namespaces[$ns] = true;
} else {
throw new MWException( "Unrecognized namespace key '$key'\n" );
}
}
}
function pass( $page ) {
$match = isset( $this->namespaces[$page->page_namespace] );
return $this->invert xor $match;
}
}
/**
* Dump output filter to include only the last revision in each page sequence.
* @ingroup Dump
*/
class DumpLatestFilter extends DumpFilter {
var $page, $pageString, $rev, $revString;
function writeOpenPage( $page, $string ) {
$this->page = $page;
$this->pageString = $string;
}
function writeClosePage( $string ) {
if ( $this->rev ) {
$this->sink->writeOpenPage( $this->page, $this->pageString );
$this->sink->writeRevision( $this->rev, $this->revString );
$this->sink->writeClosePage( $string );
}
$this->rev = null;
$this->revString = null;
$this->page = null;
$this->pageString = null;
}
function writeRevision( $rev, $string ) {
if ( $rev->rev_id == $this->page->page_latest ) {
$this->rev = $rev;
$this->revString = $string;
}
}
}
/**
* Base class for output stream; prints to stdout or buffer or whereever.
* @ingroup Dump
*/
class DumpMultiWriter {
function __construct( $sinks ) {
$this->sinks = $sinks;
$this->count = count( $sinks );
}
function writeOpenStream( $string ) {
for ( $i = 0; $i < $this->count; $i++ ) {
$this->sinks[$i]->writeOpenStream( $string );
}
}
function writeCloseStream( $string ) {
for ( $i = 0; $i < $this->count; $i++ ) {
$this->sinks[$i]->writeCloseStream( $string );
}
}
function writeOpenPage( $page, $string ) {
for ( $i = 0; $i < $this->count; $i++ ) {
$this->sinks[$i]->writeOpenPage( $page, $string );
}
}
function writeClosePage( $string ) {
for ( $i = 0; $i < $this->count; $i++ ) {
$this->sinks[$i]->writeClosePage( $string );
}
}
function writeRevision( $rev, $string ) {
for ( $i = 0; $i < $this->count; $i++ ) {
$this->sinks[$i]->writeRevision( $rev, $string );
}
}
function closeRenameAndReopen( $newnames ) {
$this->closeAndRename( $newnames, true );
}
function closeAndRename( $newnames, $open = false ) {
for ( $i = 0; $i < $this->count; $i++ ) {
$this->sinks[$i]->closeAndRename( $newnames[$i], $open );
}
}
function getFilenames() {
$filenames = array();
for ( $i = 0; $i < $this->count; $i++ ) {
$filenames[] = $this->sinks[$i]->getFilenames();
}
return $filenames;
}
}
function xmlsafe( $string ) {
wfProfileIn( __FUNCTION__ );
/**
* The page may contain old data which has not been properly normalized.
* Invalid UTF-8 sequences or forbidden control characters will make our
* XML output invalid, so be sure to strip them out.
*/
$string = UtfNormal::cleanUp( $string );
$string = htmlspecialchars( $string );
wfProfileOut( __FUNCTION__ );
return $string;
}