24d69ef952
This is identical to Parser::getTargetLanguage() in modern MediaWiki,
since 7df3473cfe in MW 1.19 (2012).
Bug: T318860
Depends-On: If5fa696e27e84a3aa1343551d7482c933da0a9b6
Depends-On: I87a7ceedce173f6de4bb6722ffe594273c7b0359
Change-Id: Ieed03003095656e69b8e64ed307c6bd67c45c1e7
289 lines
11 KiB
PHP
289 lines
11 KiB
PHP
<?php
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/**
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* Magic variable implementations provided by MediaWiki core
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Parser
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*/
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use MediaWiki\Config\ServiceOptions;
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use MediaWiki\MainConfigNames;
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use MediaWiki\Parser\ParserOutputFlags;
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use Psr\Log\LoggerInterface;
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use Wikimedia\Timestamp\ConvertibleTimestamp;
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/**
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* Expansions of core magic variables, used by the parser.
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* @internal
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* @ingroup Parser
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*/
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class CoreMagicVariables {
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/**
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* Expand the magic variable given by $index.
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* @internal
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* @param Parser $parser
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* @param string $id The name of the variable, and equivalently, the magic
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* word ID which was used to match the variable
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* @param ConvertibleTimestamp $ts Timestamp to use when expanding magic variable
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* @param NamespaceInfo $nsInfo The NamespaceInfo to use when expanding
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* @param ServiceOptions $svcOptions Service options for the parser
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* @param LoggerInterface $logger
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* @return string|null The expanded value, or null to indicate the given
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* index wasn't a known magic variable.
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*/
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public static function expand(
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// Fundamental options
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Parser $parser,
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string $id,
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// Context passed over from the parser
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ConvertibleTimestamp $ts,
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NamespaceInfo $nsInfo,
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ServiceOptions $svcOptions,
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LoggerInterface $logger
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): ?string {
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$pageLang = $parser->getTargetLanguage();
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$title = $parser->getTitle();
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switch ( $id ) {
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case '!':
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return '|';
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case '=':
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return '=';
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case 'currentmonth':
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return $pageLang->formatNumNoSeparators( $ts->format( 'm' ) );
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case 'currentmonth1':
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return $pageLang->formatNumNoSeparators( $ts->format( 'n' ) );
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case 'currentmonthname':
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return $pageLang->getMonthName( (int)$ts->format( 'n' ) );
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case 'currentmonthnamegen':
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return $pageLang->getMonthNameGen( (int)$ts->format( 'n' ) );
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case 'currentmonthabbrev':
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return $pageLang->getMonthAbbreviation( (int)$ts->format( 'n' ) );
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case 'currentday':
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return $pageLang->formatNumNoSeparators( $ts->format( 'j' ) );
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case 'currentday2':
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return $pageLang->formatNumNoSeparators( $ts->format( 'd' ) );
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case 'localmonth':
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return $pageLang->formatNumNoSeparators( self::makeTsLocal( $svcOptions, $ts )->format( 'm' ) );
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case 'localmonth1':
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return $pageLang->formatNumNoSeparators( self::makeTsLocal( $svcOptions, $ts )->format( 'n' ) );
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case 'localmonthname':
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return $pageLang->getMonthName( (int)self::makeTsLocal( $svcOptions, $ts )->format( 'n' ) );
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case 'localmonthnamegen':
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return $pageLang->getMonthNameGen( (int)self::makeTsLocal( $svcOptions, $ts )->format( 'n' ) );
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case 'localmonthabbrev':
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return $pageLang->getMonthAbbreviation( (int)self::makeTsLocal( $svcOptions, $ts )->format( 'n' ) );
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case 'localday':
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return $pageLang->formatNumNoSeparators( self::makeTsLocal( $svcOptions, $ts )->format( 'j' ) );
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case 'localday2':
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return $pageLang->formatNumNoSeparators( self::makeTsLocal( $svcOptions, $ts )->format( 'd' ) );
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case 'pagename':
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case 'pagenamee':
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case 'fullpagename':
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case 'fullpagenamee':
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case 'subpagename':
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case 'subpagenamee':
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case 'rootpagename':
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case 'rootpagenamee':
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case 'basepagename':
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case 'basepagenamee':
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case 'talkpagename':
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case 'talkpagenamee':
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case 'subjectpagename':
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case 'subjectpagenamee':
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case 'pageid':
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case 'revisionday':
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case 'revisionday2':
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case 'revisionmonth':
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case 'revisionmonth1':
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case 'revisionyear':
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case 'revisiontimestamp':
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case 'namespace':
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case 'namespacee':
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case 'namespacenumber':
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case 'talkspace':
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case 'talkspacee':
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case 'subjectspace':
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case 'subjectspacee':
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case 'cascadingsources':
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# First argument of the corresponding parser function
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# (second argument of the PHP implementation) is
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# "title".
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# Note that for many of these {{FOO}} is subtly different
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# from {{FOO:{{PAGENAME}}}}, so we can't pass $title here
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# we have to explicitly use the "no arguments" form of the
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# parser function by passing `null` to indicate a missing
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# argument (which then defaults to the current page title).
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return CoreParserFunctions::$id( $parser, null );
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case 'revisionid':
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$namespace = $title->getNamespace();
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if (
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$svcOptions->get( MainConfigNames::MiserMode ) &&
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!$parser->getOptions()->getInterfaceMessage() &&
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// @TODO: disallow this variable on all namespaces
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$nsInfo->isSubject( $namespace )
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) {
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// Use a stub result instead of the actual revision ID in order to avoid
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// double parses on page save but still allow preview detection (T137900)
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if ( $parser->getRevisionId() || $parser->getOptions()->getSpeculativeRevId() ) {
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return '-';
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} else {
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self::setOutputFlag(
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$parser,
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$logger,
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ParserOutputFlags::VARY_REVISION_EXISTS,
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'{{REVISIONID}} used'
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);
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return '';
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}
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} else {
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// Inform the edit saving system that getting the canonical output after
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// revision insertion requires a parse that used that exact revision ID
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self::setOutputFlag( $parser, $logger, ParserOutputFlags::VARY_REVISION_ID, '{{REVISIONID}} used' );
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$value = $parser->getRevisionId();
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if ( $value === 0 ) {
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$rev = $parser->getRevisionRecordObject();
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$value = $rev ? $rev->getId() : $value;
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}
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if ( !$value ) {
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$value = $parser->getOptions()->getSpeculativeRevId();
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if ( $value ) {
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$parser->getOutput()->setSpeculativeRevIdUsed( $value );
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}
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}
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return (string)$value;
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}
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case 'revisionuser':
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// Inform the edit saving system that getting the canonical output after
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// revision insertion requires a parse that used the actual user ID
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self::setOutputFlag( $parser, $logger, ParserOutputFlags::VARY_USER, '{{REVISIONUSER}} used' );
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// Note that getRevisionUser() can return null; we need to
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// be sure to cast this to (an empty) string, since 'null'
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// means "magic variable not handled here".
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return (string)$parser->getRevisionUser();
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case 'revisionsize':
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return (string)$parser->getRevisionSize();
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case 'currentdayname':
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return $pageLang->getWeekdayName( (int)$ts->format( 'w' ) + 1 );
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case 'currentyear':
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return $pageLang->formatNumNoSeparators( $ts->format( 'Y' ) );
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case 'currenttime':
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return $pageLang->time( $ts->getTimestamp( TS_MW ), false, false );
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case 'currenthour':
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return $pageLang->formatNumNoSeparators( $ts->format( 'H' ) );
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case 'currentweek':
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// @bug T6594 PHP5 has it zero padded, PHP4 does not, cast to
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// int to remove the padding
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return $pageLang->formatNum( (int)$ts->format( 'W' ) );
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case 'currentdow':
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return $pageLang->formatNum( $ts->format( 'w' ) );
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case 'localdayname':
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return $pageLang->getWeekdayName(
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(int)self::makeTsLocal( $svcOptions, $ts )->format( 'w' ) + 1
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);
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case 'localyear':
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return $pageLang->formatNumNoSeparators( self::makeTsLocal( $svcOptions, $ts )->format( 'Y' ) );
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case 'localtime':
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return $pageLang->time(
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self::makeTsLocal( $svcOptions, $ts )->format( 'YmdHis' ),
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false,
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false
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);
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case 'localhour':
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return $pageLang->formatNumNoSeparators( self::makeTsLocal( $svcOptions, $ts )->format( 'H' ) );
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case 'localweek':
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// @bug T6594 PHP5 has it zero padded, PHP4 does not, cast to
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// int to remove the padding
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return $pageLang->formatNum( (int)self::makeTsLocal( $svcOptions, $ts )->format( 'W' ) );
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case 'localdow':
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return $pageLang->formatNum( self::makeTsLocal( $svcOptions, $ts )->format( 'w' ) );
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case 'numberofarticles':
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case 'numberoffiles':
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case 'numberofusers':
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case 'numberofactiveusers':
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case 'numberofpages':
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case 'numberofadmins':
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case 'numberofedits':
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# second argument is 'raw'; magic variables are "not raw"
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return CoreParserFunctions::$id( $parser, null );
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case 'currenttimestamp':
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return $ts->getTimestamp( TS_MW );
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case 'localtimestamp':
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return self::makeTsLocal( $svcOptions, $ts )->format( 'YmdHis' );
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case 'currentversion':
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return SpecialVersion::getVersion();
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case 'articlepath':
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return (string)$svcOptions->get( MainConfigNames::ArticlePath );
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case 'sitename':
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return (string)$svcOptions->get( MainConfigNames::Sitename );
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case 'server':
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return (string)$svcOptions->get( MainConfigNames::Server );
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case 'servername':
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return (string)$svcOptions->get( MainConfigNames::ServerName );
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case 'scriptpath':
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return (string)$svcOptions->get( MainConfigNames::ScriptPath );
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case 'stylepath':
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return (string)$svcOptions->get( MainConfigNames::StylePath );
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case 'directionmark':
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return $pageLang->getDirMark();
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case 'contentlanguage':
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return $parser->getContentLanguage()->getCode();
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case 'pagelanguage':
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return $pageLang->getCode();
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default:
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// This is not one of the core magic variables
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return null;
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}
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}
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/**
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* Helper to convert a timestamp instance to local time
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* @see MWTimestamp::getLocalInstance()
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* @param ServiceOptions $svcOptions Service options for the parser
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* @param ConvertibleTimestamp $ts Timestamp to convert
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* @return ConvertibleTimestamp
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*/
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private static function makeTsLocal( $svcOptions, $ts ) {
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$localtimezone = $svcOptions->get( MainConfigNames::Localtimezone );
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$ts->setTimezone( $localtimezone );
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return $ts;
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}
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/**
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* Helper method borrowed from Parser.php: sets the flag on the output
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* but also does some debug logging.
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* @param Parser $parser
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* @param LoggerInterface $logger
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* @param string $flag
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* @param string $reason
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*/
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private static function setOutputFlag(
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Parser $parser,
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LoggerInterface $logger,
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string $flag,
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string $reason
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): void {
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$parser->getOutput()->setOutputFlag( $flag );
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$name = $parser->getTitle()->getPrefixedText();
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// This code was moved from Parser::setOutputFlag and used __METHOD__
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// originally; we've hard-coded that output here so that our refactor
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// doesn't change the messages in the logs.
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$logger->debug( "Parser::setOutputFlag: set $flag flag on '$name'; $reason" );
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}
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}
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