mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Scribunto
synced 2024-12-18 02:41:09 +00:00
9231163147
Changes to the use statements done automatically via script Change-Id: I28cb0daddf167e6e713b756e1f6ad0bbe98858ec
545 lines
16 KiB
PHP
545 lines
16 KiB
PHP
<?php
|
|
|
|
namespace MediaWiki\Extension\Scribunto\Engines\LuaCommon;
|
|
|
|
use LogicException;
|
|
use MediaWiki\Content\Content;
|
|
use MediaWiki\Logger\LoggerFactory;
|
|
use MediaWiki\MediaWikiServices;
|
|
use MediaWiki\Parser\ParserOutputFlags;
|
|
use MediaWiki\Revision\RevisionAccessException;
|
|
use MediaWiki\Revision\SlotRecord;
|
|
use MediaWiki\Title\Title;
|
|
|
|
class TitleLibrary extends LibraryBase {
|
|
// Note these caches are naturally limited to
|
|
// $wgExpensiveParserFunctionLimit + 1 actual Title objects because any
|
|
// addition besides the one for the current page calls
|
|
// incrementExpensiveFunctionCount()
|
|
/** @var Title[] */
|
|
private $titleCache = [];
|
|
/** @var (Title|null)[] */
|
|
private $idCache = [ 0 => null ];
|
|
|
|
public function register() {
|
|
$lib = [
|
|
'newTitle' => [ $this, 'newTitle' ],
|
|
'makeTitle' => [ $this, 'makeTitle' ],
|
|
'getExpensiveData' => [ $this, 'getExpensiveData' ],
|
|
'getUrl' => [ $this, 'getUrl' ],
|
|
'getContent' => [ $this, 'getContent' ],
|
|
'getCategories' => [ $this, 'getCategories' ],
|
|
'getFileInfo' => [ $this, 'getFileInfo' ],
|
|
'protectionLevels' => [ $this, 'protectionLevels' ],
|
|
'cascadingProtection' => [ $this, 'cascadingProtection' ],
|
|
'redirectTarget' => [ $this, 'redirectTarget' ],
|
|
'recordVaryFlag' => [ $this, 'recordVaryFlag' ],
|
|
'getPageLangCode' => [ $this, 'getPageLangCode' ],
|
|
];
|
|
$title = $this->getTitle();
|
|
return $this->getEngine()->registerInterface( 'mw.title.lua', $lib, [
|
|
'thisTitle' => $title ? $this->getInexpensiveTitleData( $title ) : null,
|
|
'NS_MEDIA' => NS_MEDIA,
|
|
] );
|
|
}
|
|
|
|
/**
|
|
* Check a namespace parameter
|
|
* @param string $name Function name (for errors)
|
|
* @param int $argIdx Argument index (for errors)
|
|
* @param mixed &$arg Argument
|
|
* @param int|null $default Default value, if $arg is null
|
|
*/
|
|
private function checkNamespace( $name, $argIdx, &$arg, $default = null ) {
|
|
if ( $arg === null && $default !== null ) {
|
|
$arg = $default;
|
|
} elseif ( is_numeric( $arg ) ) {
|
|
$arg = (int)$arg;
|
|
if ( !MediaWikiServices::getInstance()->getNamespaceInfo()->exists( $arg ) ) {
|
|
throw new LuaError(
|
|
"bad argument #$argIdx to '$name' (unrecognized namespace number '$arg')"
|
|
);
|
|
}
|
|
} elseif ( is_string( $arg ) ) {
|
|
$ns = MediaWikiServices::getInstance()->getContentLanguage()->getNsIndex( $arg );
|
|
if ( $ns === false ) {
|
|
throw new LuaError(
|
|
"bad argument #$argIdx to '$name' (unrecognized namespace name '$arg')"
|
|
);
|
|
}
|
|
$arg = $ns;
|
|
} else {
|
|
$this->checkType( $name, $argIdx, $arg, 'namespace number or name' );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Extract inexpensive information from a Title object for return to Lua
|
|
*
|
|
* @param Title $title Title to return
|
|
* @return array Lua data
|
|
*/
|
|
private function getInexpensiveTitleData( Title $title ) {
|
|
$ns = $title->getNamespace();
|
|
$ret = [
|
|
'isCurrentTitle' => (bool)$title->equals( $this->getTitle() ),
|
|
'isLocal' => (bool)$title->isLocal(),
|
|
'interwiki' => $title->getInterwiki(),
|
|
'namespace' => $ns,
|
|
'nsText' => $title->getNsText(),
|
|
'text' => $title->getText(),
|
|
'fragment' => $title->getFragment(),
|
|
'thePartialUrl' => $title->getPartialURL(),
|
|
];
|
|
if ( $ns === NS_SPECIAL ) {
|
|
// Core doesn't currently record special page links, but it may in the future.
|
|
if ( $this->getParser() && !$title->equals( $this->getTitle() ) ) {
|
|
$this->getParser()->getOutput()->addLink( $title );
|
|
}
|
|
$ret['exists'] = MediaWikiServices::getInstance()
|
|
->getSpecialPageFactory()->exists( $title->getDBkey() );
|
|
}
|
|
if ( $ns !== NS_FILE && $ns !== NS_MEDIA ) {
|
|
$ret['file'] = false;
|
|
}
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* Extract expensive information from a Title object for return to Lua
|
|
*
|
|
* This records a link to this title in the current ParserOutput and caches the
|
|
* title for repeated lookups. It may call incrementExpensiveFunctionCount() if
|
|
* the title is not already cached.
|
|
*
|
|
* @internal
|
|
* @param string $text Title text
|
|
* @return array Lua data
|
|
*/
|
|
public function getExpensiveData( $text ) {
|
|
$this->checkType( 'getExpensiveData', 1, $text, 'string' );
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return [ null ];
|
|
}
|
|
$dbKey = $title->getPrefixedDBkey();
|
|
if ( isset( $this->titleCache[$dbKey] ) ) {
|
|
// It was already cached, so we already did the expensive work and added a link
|
|
$title = $this->titleCache[$dbKey];
|
|
} else {
|
|
if ( !$title->equals( $this->getTitle() ) ) {
|
|
$this->incrementExpensiveFunctionCount();
|
|
|
|
// Record a link
|
|
if ( $this->getParser() ) {
|
|
$this->getParser()->getOutput()->addLink( $title );
|
|
}
|
|
}
|
|
|
|
// Cache it
|
|
$this->titleCache[$dbKey] = $title;
|
|
if ( $title->getArticleID() > 0 ) {
|
|
$this->idCache[$title->getArticleID()] = $title;
|
|
}
|
|
}
|
|
|
|
$ret = [
|
|
'isRedirect' => (bool)$title->isRedirect(),
|
|
'id' => $title->getArticleID(),
|
|
'contentModel' => $title->getContentModel(),
|
|
];
|
|
if ( $title->getNamespace() === NS_SPECIAL ) {
|
|
$ret['exists'] = MediaWikiServices::getInstance()
|
|
->getSpecialPageFactory()->exists( $title->getDBkey() );
|
|
} else {
|
|
// bug 70495: don't just check whether the ID != 0
|
|
$ret['exists'] = $title->exists();
|
|
}
|
|
return [ $ret ];
|
|
}
|
|
|
|
/**
|
|
* Handler for title.new
|
|
*
|
|
* Calls Title::newFromID or Title::newFromTitle as appropriate for the
|
|
* arguments.
|
|
*
|
|
* @internal
|
|
* @param string|int $text_or_id Title or page_id to fetch
|
|
* @param string|int|null $defaultNamespace Namespace name or number to use if
|
|
* $text_or_id doesn't override
|
|
* @return array Lua data
|
|
*/
|
|
public function newTitle( $text_or_id, $defaultNamespace = null ) {
|
|
$type = $this->getLuaType( $text_or_id );
|
|
if ( $type === 'number' ) {
|
|
if ( array_key_exists( $text_or_id, $this->idCache ) ) {
|
|
$title = $this->idCache[$text_or_id];
|
|
} else {
|
|
$this->incrementExpensiveFunctionCount();
|
|
$title = Title::newFromID( $text_or_id );
|
|
$this->idCache[$text_or_id] = $title;
|
|
|
|
// Record a link
|
|
if ( $title && $this->getParser() && !$title->equals( $this->getTitle() ) ) {
|
|
$this->getParser()->getOutput()->addLink( $title );
|
|
}
|
|
}
|
|
if ( $title ) {
|
|
$this->titleCache[$title->getPrefixedDBkey()] = $title;
|
|
} else {
|
|
return [ null ];
|
|
}
|
|
} elseif ( $type === 'string' ) {
|
|
$this->checkNamespace( 'title.new', 2, $defaultNamespace, NS_MAIN );
|
|
|
|
// Note this just fills in the given fields, it doesn't fetch from
|
|
// the page table.
|
|
$title = Title::newFromText( $text_or_id, $defaultNamespace );
|
|
if ( !$title ) {
|
|
return [ null ];
|
|
}
|
|
} else {
|
|
$this->checkType( 'title.new', 1, $text_or_id, 'number or string' );
|
|
throw new LogicException( 'checkType above should have failed' );
|
|
}
|
|
|
|
return [ $this->getInexpensiveTitleData( $title ) ];
|
|
}
|
|
|
|
/**
|
|
* Handler for title.makeTitle
|
|
*
|
|
* Calls Title::makeTitleSafe.
|
|
*
|
|
* @internal
|
|
* @param string|int $ns Namespace
|
|
* @param string $text Title text
|
|
* @param string|null $fragment URI fragment
|
|
* @param string|null $interwiki Interwiki code
|
|
* @return array Lua data
|
|
*/
|
|
public function makeTitle( $ns, $text, $fragment = null, $interwiki = null ) {
|
|
$this->checkNamespace( 'makeTitle', 1, $ns );
|
|
$this->checkType( 'makeTitle', 2, $text, 'string' );
|
|
$this->checkTypeOptional( 'makeTitle', 3, $fragment, 'string', '' );
|
|
$this->checkTypeOptional( 'makeTitle', 4, $interwiki, 'string', '' );
|
|
|
|
// Note this just fills in the given fields, it doesn't fetch from the
|
|
// page table.
|
|
$title = Title::makeTitleSafe( $ns, $text, $fragment, $interwiki );
|
|
if ( !$title ) {
|
|
return [ null ];
|
|
}
|
|
|
|
return [ $this->getInexpensiveTitleData( $title ) ];
|
|
}
|
|
|
|
/**
|
|
* Get a URL referring to this title
|
|
* @internal
|
|
* @param string $text Title text.
|
|
* @param string $which 'fullUrl', 'localUrl', or 'canonicalUrl'
|
|
* @param string|array|null $query Query string or query string data.
|
|
* @param string|null $proto 'http', 'https', 'relative', or 'canonical'
|
|
* @return array
|
|
*/
|
|
public function getUrl( $text, $which, $query = null, $proto = null ) {
|
|
static $protoMap = [
|
|
'http' => PROTO_HTTP,
|
|
'https' => PROTO_HTTPS,
|
|
'relative' => PROTO_RELATIVE,
|
|
'canonical' => PROTO_CANONICAL,
|
|
];
|
|
|
|
$this->checkType( 'getUrl', 1, $text, 'string' );
|
|
$this->checkType( 'getUrl', 2, $which, 'string' );
|
|
if ( !in_array( $which, [ 'fullUrl', 'localUrl', 'canonicalUrl' ], true ) ) {
|
|
$this->checkType( 'getUrl', 2, $which, "'fullUrl', 'localUrl', or 'canonicalUrl'" );
|
|
}
|
|
|
|
// May call the following Title methods:
|
|
// getFullUrl, getLocalUrl, getCanonicalUrl
|
|
$func = "get" . ucfirst( $which );
|
|
|
|
$args = [ $query, false ];
|
|
if ( !is_string( $query ) && !is_array( $query ) ) {
|
|
$this->checkTypeOptional( $which, 1, $query, 'table or string', '' );
|
|
}
|
|
if ( $which === 'fullUrl' ) {
|
|
$this->checkTypeOptional( $which, 2, $proto, 'string', 'relative' );
|
|
if ( !isset( $protoMap[$proto] ) ) {
|
|
$this->checkType( $which, 2, $proto, "'http', 'https', 'relative', or 'canonical'" );
|
|
}
|
|
$args[] = $protoMap[$proto];
|
|
}
|
|
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return [ null ];
|
|
}
|
|
return [ $title->$func( ...$args ) ];
|
|
}
|
|
|
|
/**
|
|
* Utility to get a Content object from a title
|
|
*
|
|
* The title is counted as a transclusion.
|
|
*
|
|
* @param string $text Title text
|
|
* @return Content|null The Content object of the title, null if missing
|
|
*/
|
|
private function getContentInternal( $text ) {
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title || $title->isExternal() ) {
|
|
return null;
|
|
}
|
|
|
|
$rev = $this->getParser()->fetchCurrentRevisionRecordOfTitle( $title );
|
|
|
|
if ( $title->equals( $this->getTitle() ) ) {
|
|
$parserOutput = $this->getParser()->getOutput();
|
|
$parserOutput->setOutputFlag( ParserOutputFlags::VARY_REVISION_SHA1 );
|
|
$parserOutput->setRevisionUsedSha1Base36( $rev ? $rev->getSha1() : '' );
|
|
wfDebug( __METHOD__ . ": set vary-revision-sha1 for '$title'" );
|
|
} else {
|
|
// Record in templatelinks, so edits cause the page to be refreshed
|
|
$this->getParser()->getOutput()->addTemplate(
|
|
$title, $title->getArticleID(), $title->getLatestRevID()
|
|
);
|
|
}
|
|
|
|
if ( !$rev ) {
|
|
return null;
|
|
}
|
|
|
|
try {
|
|
$content = $rev->getContent( SlotRecord::MAIN );
|
|
} catch ( RevisionAccessException $ex ) {
|
|
$logger = LoggerFactory::getInstance( 'Scribunto' );
|
|
$logger->warning(
|
|
__METHOD__ . ': Unable to transclude revision content',
|
|
[ 'exception' => $ex ]
|
|
);
|
|
$content = null;
|
|
}
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* Handler for getContent
|
|
* @internal
|
|
* @param string $text
|
|
* @return string[]|null[]
|
|
*/
|
|
public function getContent( $text ) {
|
|
$this->checkType( 'getContent', 1, $text, 'string' );
|
|
$content = $this->getContentInternal( $text );
|
|
return [ $content ? $content->serialize() : null ];
|
|
}
|
|
|
|
/**
|
|
* @internal
|
|
* @param string $text
|
|
* @return string[][]
|
|
*/
|
|
public function getCategories( $text ) {
|
|
$this->checkType( 'getCategories', 1, $text, 'string' );
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return [ [] ];
|
|
}
|
|
$page = MediaWikiServices::getInstance()->getWikiPageFactory()->newFromTitle( $title );
|
|
$this->incrementExpensiveFunctionCount();
|
|
|
|
$parserOutput = $this->getParser()->getOutput();
|
|
if ( $title->equals( $this->getTitle() ) ) {
|
|
$parserOutput->setOutputFlag( ParserOutputFlags::VARY_REVISION );
|
|
} else {
|
|
// Record in templatelinks, so edits cause the page to be refreshed
|
|
$parserOutput->addTemplate( $title, $title->getArticleID(), $title->getLatestRevID() );
|
|
}
|
|
|
|
$categoryTitles = $page->getCategories();
|
|
$categoryNames = [];
|
|
foreach ( $categoryTitles as $title ) {
|
|
$categoryNames[] = $title->getText();
|
|
}
|
|
return [ self::makeArrayOneBased( $categoryNames ) ];
|
|
}
|
|
|
|
/**
|
|
* Handler for getFileInfo
|
|
* @internal
|
|
* @param string $text
|
|
* @return array
|
|
*/
|
|
public function getFileInfo( $text ) {
|
|
$this->checkType( 'getFileInfo', 1, $text, 'string' );
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return [ false ];
|
|
}
|
|
$ns = $title->getNamespace();
|
|
if ( $ns !== NS_FILE && $ns !== NS_MEDIA ) {
|
|
return [ false ];
|
|
}
|
|
|
|
$this->incrementExpensiveFunctionCount();
|
|
$file = MediaWikiServices::getInstance()->getRepoGroup()->findFile( $title );
|
|
if ( !$file ) {
|
|
return [ [ 'exists' => false ] ];
|
|
}
|
|
$this->getParser()->getOutput()->addImage(
|
|
$file->getName(), $file->getTimestamp(), $file->getSha1()
|
|
);
|
|
if ( !$file->exists() ) {
|
|
return [ [ 'exists' => false ] ];
|
|
}
|
|
$pageCount = $file->pageCount();
|
|
if ( $pageCount === false ) {
|
|
$pages = null;
|
|
} else {
|
|
$pages = [];
|
|
for ( $i = 1; $i <= $pageCount; ++$i ) {
|
|
$pages[$i] = [
|
|
'width' => $file->getWidth( $i ),
|
|
'height' => $file->getHeight( $i )
|
|
];
|
|
}
|
|
}
|
|
return [ [
|
|
'exists' => true,
|
|
'width' => $file->getWidth(),
|
|
'height' => $file->getHeight(),
|
|
'mimeType' => $file->getMimeType(),
|
|
'length' => $file->getLength(),
|
|
'size' => $file->getSize(),
|
|
'pages' => $pages
|
|
] ];
|
|
}
|
|
|
|
/**
|
|
* Renumber an array for return to Lua
|
|
* @param array $arr
|
|
* @return array
|
|
*/
|
|
private static function makeArrayOneBased( $arr ) {
|
|
if ( !$arr ) {
|
|
return $arr;
|
|
}
|
|
return array_combine( range( 1, count( $arr ) ), array_values( $arr ) );
|
|
}
|
|
|
|
/**
|
|
* Handler for protectionLevels
|
|
* @internal
|
|
* @param string $text
|
|
* @return array
|
|
*/
|
|
public function protectionLevels( $text ) {
|
|
$this->checkType( 'protectionLevels', 1, $text, 'string' );
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return [ null ];
|
|
}
|
|
|
|
$restrictionStore = MediaWikiServices::getInstance()->getRestrictionStore();
|
|
|
|
if ( !$restrictionStore->areRestrictionsLoaded( $title ) ) {
|
|
$this->incrementExpensiveFunctionCount();
|
|
}
|
|
return [ array_map(
|
|
[ self::class, 'makeArrayOneBased' ],
|
|
$restrictionStore->getAllRestrictions( $title )
|
|
) ];
|
|
}
|
|
|
|
/**
|
|
* Handler for cascadingProtection
|
|
* @internal
|
|
* @param string $text
|
|
* @return array
|
|
*/
|
|
public function cascadingProtection( $text ) {
|
|
$this->checkType( 'cascadingProtection', 1, $text, 'string' );
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return [ null ];
|
|
}
|
|
|
|
$restrictionStore = MediaWikiServices::getInstance()->getRestrictionStore();
|
|
$titleFormatter = MediaWikiServices::getInstance()->getTitleFormatter();
|
|
|
|
if ( !$restrictionStore->areCascadeProtectionSourcesLoaded( $title ) ) {
|
|
$this->incrementExpensiveFunctionCount();
|
|
}
|
|
|
|
[ $sources, $restrictions ] = $restrictionStore->getCascadeProtectionSources( $title );
|
|
|
|
return [ [
|
|
'sources' => self::makeArrayOneBased( array_map(
|
|
static function ( $t ) use ( $titleFormatter ) {
|
|
return $titleFormatter->getPrefixedText( $t );
|
|
},
|
|
$sources ) ),
|
|
'restrictions' => array_map(
|
|
[ self::class, 'makeArrayOneBased' ],
|
|
$restrictions
|
|
)
|
|
] ];
|
|
}
|
|
|
|
/**
|
|
* Handler for redirectTarget
|
|
* @internal
|
|
* @param string $text
|
|
* @return string[]|null[]
|
|
*/
|
|
public function redirectTarget( $text ) {
|
|
$this->checkType( 'redirectTarget', 1, $text, 'string' );
|
|
$content = $this->getContentInternal( $text );
|
|
$redirTitle = $content ? $content->getRedirectTarget() : null;
|
|
return [ $redirTitle ? $this->getInexpensiveTitleData( $redirTitle ) : null ];
|
|
}
|
|
|
|
/**
|
|
* Record a ParserOutput flag when the current title is accessed
|
|
* @internal
|
|
* @param string $text
|
|
* @param string $flag
|
|
* @return array
|
|
*/
|
|
public function recordVaryFlag( $text, $flag ) {
|
|
$this->checkType( 'recordVaryFlag', 1, $text, 'string' );
|
|
$this->checkType( 'recordVaryFlag', 2, $flag, 'string' );
|
|
$title = Title::newFromText( $text );
|
|
if ( $title && $title->equals( $this->getTitle() ) ) {
|
|
// XXX note that we don't check this against the values defined
|
|
// in ParserOutputFlags
|
|
$this->getParser()->getOutput()->setOutputFlag( $flag );
|
|
}
|
|
return [];
|
|
}
|
|
|
|
/**
|
|
* Handler for getPageLangCode
|
|
* @internal
|
|
* @param string $text Title text.
|
|
* @return array<?string>
|
|
*/
|
|
public function getPageLangCode( $text ) {
|
|
$title = Title::newFromText( $text );
|
|
if ( $title ) {
|
|
// If the page language is coming from the page record, we've
|
|
// probably accounted for the cost of reading the title from
|
|
// the DB already. However, a PageContentLanguage hook handler
|
|
// might get invoked here, and who knows how much that costs.
|
|
// Be safe and increment here, even though this could over-count.
|
|
$this->incrementExpensiveFunctionCount();
|
|
return [ $title->getPageLanguage()->getCode() ];
|
|
}
|
|
return [ null ];
|
|
}
|
|
}
|