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BannerMessage.php
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BannerMessage.php
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<?php
use MediaWiki\Content\ContentHandler;
use MediaWiki\Content\TextContent;
use MediaWiki\Context\IContextSource;
use MediaWiki\MediaWikiServices;
use MediaWiki\Parser\Sanitizer;
use MediaWiki\Revision\SlotRecord;
use MediaWiki\Title\Title;
use MediaWiki\User\User;
use Wikimedia\Rdbms\IDBAccessObject;
class BannerMessage {
/** @var string */
private $banner_name;
/** @var string */
private $name;
private const SPAN_TAG_PLACEHOLDER_START = '%%%spantagplaceholderstart%%%';
private const SPAN_TAG_PLACEHOLDER_END = '%%%spantagplaceholderend%%%';
/**
* @param string $banner_name
* @param string $name
*/
public function __construct( $banner_name, $name ) {
$this->banner_name = $banner_name;
$this->name = $name;
}
/**
* @param string $lang
* @param int $namespace
* @return Title|null
*/
public function getTitle( $lang, $namespace = NS_MEDIAWIKI ) {
return Title::newFromText( $this->getDbKey( $lang, $namespace ), $namespace );
}
/**
* Obtains the key of the message as stored in the database. This varies depending on namespace
* - in the MediaWiki namespace messages are Centralnotice-{banner name}-{message name}/{lang}
* -- except for the content language which is stored without the /{lang} extension
* - in the CN Banner namespace messages are {banner name}-{message name}/{lang}
*
* @param string|null $lang Language code
* @param int $namespace Namespace to get key for
*
* @return string Message database key
* @throws RangeException
*/
public function getDbKey( $lang = null, $namespace = NS_MEDIAWIKI ) {
global $wgLanguageCode;
if ( $namespace === NS_MEDIAWIKI ) {
return ( $lang === null || $lang === $wgLanguageCode ) ?
"Centralnotice-{$this->banner_name}-{$this->name}" :
"Centralnotice-{$this->banner_name}-{$this->name}/{$lang}";
} elseif ( $namespace === NS_CN_BANNER ) {
return "{$this->banner_name}-{$this->name}/{$lang}";
} else {
throw new RangeException(
"Namespace '$namespace' not known for having CentralNotice messages."
);
}
}
/**
* Return the whether the message exists, without language fallback.
* @param string|null $lang
* @return bool
*/
public function existsInLang( $lang ) {
return $this->getTitle( $lang )->exists();
}
/**
* Obtain the raw contents of the message; stripping out the stupid <message-name> if it's blank
*
* @param null|string $lang
* @return null|string Will be null if the message does not exist, otherwise will be
* the contents of the message.
*/
public function getContents( $lang ) {
if ( $this->existsInLang( $lang ) ) {
$dbKey = $this->getDbKey();
$revisionLookup = MediaWikiServices::getInstance()->getRevisionLookup();
$rev = $revisionLookup->getRevisionByTitle( $this->getTitle( $lang ) );
if ( !$rev ) {
// Try harder, might have just been created, otherwise the title wouldn't exist
$rev = $revisionLookup->getRevisionByTitle(
$this->getTitle( $lang ),
IDBAccessObject::READ_LATEST
);
}
if ( !$rev ) {
return null;
}
$content = $rev->getContent( SlotRecord::MAIN );
/** @var TextContent $content */
'@phan-var TextContent $content';
$msg = $content->getText();
if ( $msg === "&lt;{$dbKey}&gt;" ) {
$msg = '';
}
return $msg;
} else {
return null;
}
}
public function toHtml( IContextSource $context ): string {
global $wgNoticeUseLanguageConversion;
$lang = $context->getLanguage();
if ( $wgNoticeUseLanguageConversion ) {
$lang = MediaWikiServices::getInstance()->getLanguageFactory()
->getParentLanguage( $lang->getCode() ) ?? $lang;
}
$text = self::sanitize(
$context->msg( $this->getDbKey() )->inLanguage( $lang )->text() );
return $text;
}
/**
* Add or update message contents
* @param string $translation
* @param string|null $lang
* @param User $user
* @param string|null $summary
*/
public function update( $translation, $lang, $user, $summary = null ) {
global $wgNoticeUseTranslateExtension, $wgLanguageCode;
if ( $summary === null ) {
// default edit summary
// TODO make this consistent throughout CN
$summary = '/* CN admin */';
}
$savePage = static function ( $title, $text ) use ( $summary, $user ) {
$wikiPage = MediaWikiServices::getInstance()->getWikiPageFactory()->newFromTitle( $title );
$content = ContentHandler::makeContent( $text, $title );
$tags = [ 'centralnotice' ];
$wikiPage->doUserEditContent(
$content,
$user,
$summary,
EDIT_FORCE_BOT,
false,
$tags
);
return $wikiPage;
};
$page = $savePage( $this->getTitle( $lang ), $translation );
Banner::protectBannerContent( $page, $user );
// If we're using translate : group review; create and protect the english page
if ( $wgNoticeUseTranslateExtension
&& ( $lang === $wgLanguageCode )
&& BannerMessageGroup::isUsingGroupReview()
) {
$page = $savePage( $this->getTitle( $lang, NS_CN_BANNER ), $translation );
Banner::protectBannerContent( $page, $user );
}
}
public static function sanitize( string $text ): string {
// First, remove any occurrences of the placeholders used to preserve span tags.
$text = str_replace( self::SPAN_TAG_PLACEHOLDER_START, '', $text );
$text = str_replace( self::SPAN_TAG_PLACEHOLDER_END, '', $text );
// Remove and save <span> tags so they don't get removed by sanitization; allow
// only class attributes.
$spanTags = [];
$text = preg_replace_callback(
'/(<\/?span\s*(?:class\s?=\s?([\'"])[a-zA-Z0-9_ -]+(\2))?\s*>)/',
static function ( $matches ) use ( &$spanTags ) {
$spanTags[] = $matches[ 1 ];
return BannerMessage::SPAN_TAG_PLACEHOLDER_START .
( count( $spanTags ) - 1 ) .
BannerMessage::SPAN_TAG_PLACEHOLDER_END;
},
$text
);
$text = Sanitizer::stripAllTags( $text );
$text = Sanitizer::escapeHtmlAllowEntities( $text );
// Restore span tags
$text = preg_replace_callback(
'/(?:' . self::SPAN_TAG_PLACEHOLDER_START . '(\d+)' .
self::SPAN_TAG_PLACEHOLDER_END . ')/',
static function ( $matches ) use ( $spanTags ) {
$index = (int)$matches[ 1 ];
// This should never happen, but let's be safe.
if ( !isset( $spanTags[ $index ] ) ) {
return '';
}
return $spanTags[ $index ];
},
$text
);
return $text;
}
}

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text/x-php
Expires
Fri, Jul 3, 17:14 (12 h, 57 m)
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local-disk
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Storage Handle
13/a0/903c977fdd169de191b5bbbaa274
Default Alt Text
BannerMessage.php (6 KB)

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