mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Scribunto
synced 2024-11-25 08:36:21 +00:00
db07787390
https://www.mediawiki.org/wiki/Extension:Scribunto says that master requires 1.25+, so let's remove checks for stuff that was added before that. * PPFrame::getTTL() was in 1.24. * PPFrame::setTTL() was in 1.24. * PPFrame::isVolatile() was in 1.24. * Parser::fetchCurrentRevisionOfTitle() was in 1.24. * ObjectCache::getLocalServerInstance() was added in 1.27, so restore the call to ObjectCache::newAccelerator() as BC. This also removes BC with the php-luasandbox extension older than 1.6, which was released before MediaWiki 1.22. Bug: T148012 Change-Id: I36e37f3b65d0f167e1d28b00e0842d9721feee31
373 lines
11 KiB
PHP
373 lines
11 KiB
PHP
<?php
|
|
|
|
// @codingStandardsIgnoreLine Squiz.Classes.ValidClassName.NotCamelCaps
|
|
class Scribunto_LuaTitleLibrary extends Scribunto_LuaLibraryBase {
|
|
// Note these caches are naturally limited to
|
|
// $wgExpensiveParserFunctionLimit + 1 actual Title objects because any
|
|
// addition besides the one for the current page calls
|
|
// incrementExpensiveFunctionCount()
|
|
private $titleCache = array();
|
|
private $idCache = array( 0 => null );
|
|
|
|
function register() {
|
|
$lib = array(
|
|
'newTitle' => array( $this, 'newTitle' ),
|
|
'makeTitle' => array( $this, 'makeTitle' ),
|
|
'getExpensiveData' => array( $this, 'getExpensiveData' ),
|
|
'getUrl' => array( $this, 'getUrl' ),
|
|
'getContent' => array( $this, 'getContent' ),
|
|
'getFileInfo' => array( $this, 'getFileInfo' ),
|
|
'protectionLevels' => array( $this, 'protectionLevels' ),
|
|
'cascadingProtection' => array( $this, 'cascadingProtection' ),
|
|
'redirectTarget' => array( $this, 'redirectTarget' ),
|
|
);
|
|
return $this->getEngine()->registerInterface( 'mw.title.lua', $lib, array(
|
|
'thisTitle' => $this->getInexpensiveTitleData( $this->getTitle() ),
|
|
'NS_MEDIA' => NS_MEDIA,
|
|
) );
|
|
}
|
|
|
|
private function checkNamespace( $name, $argIdx, &$arg, $default = null ) {
|
|
global $wgContLang;
|
|
|
|
if ( $arg === null && $default !== null ) {
|
|
$arg = $default;
|
|
} elseif ( is_numeric( $arg ) ) {
|
|
$arg = (int)$arg;
|
|
if ( !MWNamespace::exists( $arg ) ) {
|
|
throw new Scribunto_LuaError(
|
|
"bad argument #$argIdx to '$name' (unrecognized namespace number '$arg')"
|
|
);
|
|
}
|
|
} elseif ( is_string( $arg ) ) {
|
|
$ns = $wgContLang->getNsIndex( $arg );
|
|
if ( $ns === false ) {
|
|
throw new Scribunto_LuaError(
|
|
"bad argument #$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();
|
|
$ret = array(
|
|
'isLocal' => (bool)$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'] = (bool)SpecialPageFactory::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.
|
|
*
|
|
* @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 array( 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;
|
|
}
|
|
}
|
|
|
|
$ret = array(
|
|
'isRedirect' => (bool)$title->isRedirect(),
|
|
'id' => $title->getArticleID(),
|
|
'contentModel' => $title->getContentModel(),
|
|
);
|
|
if ( $title->getNamespace() === NS_SPECIAL ) {
|
|
$ret['exists'] = (bool)SpecialPageFactory::exists( $title->getDBkey() );
|
|
} else {
|
|
// bug 70495: don't just check whether the ID != 0
|
|
$ret['exists'] = $title->exists();
|
|
}
|
|
return array( $ret );
|
|
}
|
|
|
|
/**
|
|
* Handler for title.new
|
|
*
|
|
* Calls Title::newFromID or Title::newFromTitle as appropriate for the
|
|
* arguments.
|
|
*
|
|
* @param $text_or_id string|int Title or page_id to fetch
|
|
* @param $defaultNamespace string|int Namespace name or number to use if
|
|
* $text_or_id doesn't override
|
|
* @return array Lua data
|
|
*/
|
|
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 ( $this->getParser() && $title && !$title->equals( $this->getTitle() ) ) {
|
|
$this->getParser()->getOutput()->addLink( $title );
|
|
}
|
|
}
|
|
if ( $title ) {
|
|
$this->titleCache[$title->getPrefixedDBkey()] = $title;
|
|
} else {
|
|
return array( 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 array( null );
|
|
}
|
|
} else {
|
|
// This will always fail
|
|
$this->checkType( 'title.new', 1, $text_or_id, 'number or string' );
|
|
}
|
|
|
|
return array( $this->getInexpensiveTitleData( $title ) );
|
|
}
|
|
|
|
/**
|
|
* Handler for title.makeTitle
|
|
*
|
|
* Calls Title::makeTitleSafe.
|
|
*
|
|
* @param $ns string|int Namespace
|
|
* @param $text string Title text
|
|
* @param $fragment string URI fragment
|
|
* @param $interwiki string Interwiki code
|
|
* @return array Lua data
|
|
*/
|
|
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 array( null );
|
|
}
|
|
|
|
return array( $this->getInexpensiveTitleData( $title ) );
|
|
}
|
|
|
|
// May call the following Title methods:
|
|
// getFullUrl, getLocalUrl, getCanonicalUrl
|
|
function getUrl( $text, $which, $query = null, $proto = null ) {
|
|
static $protoMap = array(
|
|
'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, array( 'fullUrl', 'localUrl', 'canonicalUrl' ), true ) ) {
|
|
$this->checkType( 'getUrl', 2, $which, "'fullUrl', 'localUrl', or 'canonicalUrl'" );
|
|
}
|
|
$func = "get" . ucfirst( $which );
|
|
|
|
$args = array( $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 array( null );
|
|
}
|
|
return array( call_user_func_array( array( $title, $func ), $args ) );
|
|
}
|
|
|
|
/**
|
|
* Utility to get a Content object from a title
|
|
*
|
|
* The title is counted as a transclusion.
|
|
*
|
|
* @param $text string Title text
|
|
* @return Content|null The Content object of the title, null if missing
|
|
*/
|
|
private function getContentInternal( $text ) {
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return null;
|
|
}
|
|
|
|
// Record in templatelinks, so edits cause the page to be refreshed
|
|
$this->getParser()->getOutput()->addTemplate(
|
|
$title, $title->getArticleID(), $title->getLatestRevID()
|
|
);
|
|
if ( $title->equals( $this->getTitle() ) ) {
|
|
$this->getParser()->getOutput()->setFlag( 'vary-revision' );
|
|
}
|
|
|
|
$rev = $this->getParser()->fetchCurrentRevisionOfTitle( $title );
|
|
return $rev ? $rev->getContent() : null;
|
|
}
|
|
|
|
function getContent( $text ) {
|
|
$this->checkType( 'getContent', 1, $text, 'string' );
|
|
$content = $this->getContentInternal( $text );
|
|
return array( $content ? $content->serialize() : null );
|
|
}
|
|
|
|
function getFileInfo( $text ) {
|
|
$this->checkType( 'getFileInfo', 1, $text, 'string' );
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return array( false );
|
|
}
|
|
$ns = $title->getNamespace();
|
|
if ( $ns !== NS_FILE && $ns !== NS_MEDIA ) {
|
|
return array( false );
|
|
}
|
|
|
|
$this->incrementExpensiveFunctionCount();
|
|
$file = wfFindFile( $title );
|
|
if ( !$file ) {
|
|
return array( array( 'exists' => false ) );
|
|
}
|
|
$this->getParser()->getOutput()->addImage(
|
|
$file->getName(), $file->getTimestamp(), $file->getSha1()
|
|
);
|
|
if ( !$file->exists() ) {
|
|
return array( array( 'exists' => false ) );
|
|
}
|
|
$pageCount = $file->pageCount();
|
|
if ( $pageCount === false ) {
|
|
$pages = null;
|
|
} else {
|
|
$pages = array();
|
|
for ( $i = 1; $i <= $pageCount; ++$i ) {
|
|
$pages[$i] = array(
|
|
'width' => $file->getWidth( $i ),
|
|
'height' => $file->getHeight( $i )
|
|
);
|
|
}
|
|
}
|
|
return array( array(
|
|
'exists' => true,
|
|
'width' => $file->getWidth(),
|
|
'height' => $file->getHeight(),
|
|
'mimeType' => $file->getMimeType(),
|
|
'size' => $file->getSize(),
|
|
'pages' => $pages
|
|
) );
|
|
}
|
|
|
|
private static function makeArrayOneBased( $arr ) {
|
|
if ( empty( $arr ) ) {
|
|
return $arr;
|
|
}
|
|
return array_combine( range( 1, count( $arr ) ), array_values( $arr ) );
|
|
}
|
|
|
|
public function protectionLevels( $text ) {
|
|
$this->checkType( 'protectionLevels', 1, $text, 'string' );
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return array( null );
|
|
}
|
|
|
|
if ( !$title->areRestrictionsLoaded() ) {
|
|
$this->incrementExpensiveFunctionCount();
|
|
}
|
|
return array( array_map(
|
|
'Scribunto_LuaTitleLibrary::makeArrayOneBased', $title->getAllRestrictions()
|
|
) );
|
|
}
|
|
|
|
public function cascadingProtection( $text ) {
|
|
$this->checkType( 'cascadingProtection', 1, $text, 'string' );
|
|
$title = Title::newFromText( $text );
|
|
if ( !$title ) {
|
|
return array( null );
|
|
}
|
|
|
|
if ( !$title->areCascadeProtectionSourcesLoaded() ) {
|
|
$this->incrementExpensiveFunctionCount();
|
|
}
|
|
list( $sources, $restrictions ) = $title->getCascadeProtectionSources();
|
|
return array( array(
|
|
'sources' => Scribunto_LuaTitleLibrary::makeArrayOneBased( array_map(
|
|
function ( $t ) {
|
|
return $t->getPrefixedText();
|
|
},
|
|
$sources ) ),
|
|
'restrictions' => array_map( 'Scribunto_LuaTitleLibrary::makeArrayOneBased', $restrictions )
|
|
) );
|
|
}
|
|
|
|
public function redirectTarget( $text ) {
|
|
$this->checkType( 'redirectTarget', 1, $text, 'string' );
|
|
$content = $this->getContentInternal( $text );
|
|
$redirTitle = $content ? $content->getRedirectTarget() : null;
|
|
return array( $redirTitle ? $this->getInexpensiveTitleData( $redirTitle ) : null );
|
|
}
|
|
}
|