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<?php
/**
* Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
*
* 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
*/
namespace MediaWiki\Api;
use Exception;
use MediaWiki\Feed\FeedItem;
use MediaWiki\MainConfigNames;
use MediaWiki\Parser\ParserFactory;
use MediaWiki\Request\FauxRequest;
use MediaWiki\SpecialPage\SpecialPage;
use MediaWiki\Title\Title;
use Wikimedia\ParamValidator\ParamValidator;
use Wikimedia\ParamValidator\TypeDef\IntegerDef;
/**
* This action allows users to get their watchlist items in RSS/Atom formats.
* When executed, it performs a nested call to the API to get the needed data,
* and formats it in a proper format.
*
* @ingroup API
*/
class ApiFeedWatchlist extends ApiBase {
/** @var ApiBase|null */
private $watchlistModule = null;
/** @var bool */
private $linkToSections = false;
private ParserFactory $parserFactory;
public function __construct(
ApiMain $main,
string $action,
ParserFactory $parserFactory
) {
parent::__construct( $main, $action );
$this->parserFactory = $parserFactory;
}
/**
* This module uses a custom feed wrapper printer.
*
* @return ApiFormatFeedWrapper
*/
public function getCustomPrinter() {
return new ApiFormatFeedWrapper( $this->getMain() );
}
/**
* Make a nested call to the API to request watchlist items in the last $hours.
* Wrap the result as an RSS/Atom feed.
*/
public function execute() {
$config = $this->getConfig();
$feedClasses = $config->get( MainConfigNames::FeedClasses );
$params = [];
$feedItems = [];
try {
$params = $this->extractRequestParams();
if ( !$config->get( MainConfigNames::Feed ) ) {
$this->dieWithError( 'feed-unavailable' );
}
if ( !isset( $feedClasses[$params['feedformat']] ) ) {
$this->dieWithError( 'feed-invalid' );
}
// limit to the number of hours going from now back
$endTime = wfTimestamp( TS_MW, time() - (int)$params['hours'] * 60 * 60 );
// Prepare parameters for nested request
$fauxReqArr = [
'action' => 'query',
'meta' => 'siteinfo',
'siprop' => 'general',
'list' => 'watchlist',
'wlprop' => 'title|user|comment|timestamp|ids|loginfo',
'wldir' => 'older', // reverse order - from newest to oldest
'wlend' => $endTime, // stop at this time
'wllimit' => min( 50, $this->getConfig()->get( MainConfigNames::FeedLimit ) )
];
if ( $params['wlowner'] !== null ) {
$fauxReqArr['wlowner'] = $params['wlowner'];
}
if ( $params['wltoken'] !== null ) {
$fauxReqArr['wltoken'] = $params['wltoken'];
}
if ( $params['wlexcludeuser'] !== null ) {
$fauxReqArr['wlexcludeuser'] = $params['wlexcludeuser'];
}
if ( $params['wlshow'] !== null ) {
$fauxReqArr['wlshow'] = ParamValidator::implodeMultiValue( $params['wlshow'] );
}
if ( $params['wltype'] !== null ) {
$fauxReqArr['wltype'] = ParamValidator::implodeMultiValue( $params['wltype'] );
}
// Support linking directly to sections when possible
// (possible only if section name is present in comment)
if ( $params['linktosections'] ) {
$this->linkToSections = true;
}
// Check for 'allrev' parameter, and if found, show all revisions to each page on wl.
if ( $params['allrev'] ) {
$fauxReqArr['wlallrev'] = '';
}
$fauxReq = new FauxRequest( $fauxReqArr );
$module = new ApiMain( $fauxReq );
$module->execute();
$data = $module->getResult()->getResultData( [ 'query', 'watchlist' ] );
foreach ( (array)$data as $key => $info ) {
if ( ApiResult::isMetadataKey( $key ) ) {
continue;
}
$feedItem = $this->createFeedItem( $info );
if ( $feedItem ) {
$feedItems[] = $feedItem;
}
}
$msg = $this->msg( 'watchlist' )->inContentLanguage()->text();
$feedTitle = $this->getConfig()->get( MainConfigNames::Sitename ) . ' - ' . $msg .
' [' . $this->getConfig()->get( MainConfigNames::LanguageCode ) . ']';
$feedUrl = SpecialPage::getTitleFor( 'Watchlist' )->getFullURL();
$feed = new $feedClasses[$params['feedformat']] (
$feedTitle,
htmlspecialchars( $msg ),
$feedUrl
);
ApiFormatFeedWrapper::setResult( $this->getResult(), $feed, $feedItems );
} catch ( Exception $e ) {
// Error results should not be cached
$this->getMain()->setCacheMaxAge( 0 );
// @todo FIXME: Localise brackets
$feedTitle = $this->getConfig()->get( MainConfigNames::Sitename ) . ' - Error - ' .
$this->msg( 'watchlist' )->inContentLanguage()->text() .
' [' . $this->getConfig()->get( MainConfigNames::LanguageCode ) . ']';
$feedUrl = SpecialPage::getTitleFor( 'Watchlist' )->getFullURL();
$feedFormat = $params['feedformat'] ?? 'rss';
$msg = $this->msg( 'watchlist' )->inContentLanguage()->escaped();
$feed = new $feedClasses[$feedFormat] ( $feedTitle, $msg, $feedUrl );
if ( $e instanceof ApiUsageException ) {
foreach ( $e->getStatusValue()->getMessages() as $msg ) {
// @phan-suppress-next-line PhanUndeclaredMethod
$msg = ApiMessage::create( $msg )
->inLanguage( $this->getLanguage() );
$errorTitle = $this->msg( 'api-feed-error-title', $msg->getApiCode() );
$errorText = $msg->text();
$feedItems[] = new FeedItem( $errorTitle, $errorText, '', '', '' );
}
} else {
// Something is seriously wrong
$errorCode = 'internal_api_error';
$errorTitle = $this->msg( 'api-feed-error-title', $errorCode );
$errorText = $e->getMessage();
$feedItems[] = new FeedItem( $errorTitle, $errorText, '', '', '' );
}
ApiFormatFeedWrapper::setResult( $this->getResult(), $feed, $feedItems );
}
}
/**
* @param array $info
* @return FeedItem|null
*/
private function createFeedItem( $info ) {
if ( !isset( $info['title'] ) ) {
// Probably a revdeled log entry, skip it.
return null;
}
$titleStr = $info['title'];
$title = Title::newFromText( $titleStr );
$curidParam = [];
if ( !$title || $title->isExternal() ) {
// Probably a formerly-valid title that's now conflicting with an
// interwiki prefix or the like.
if ( isset( $info['pageid'] ) ) {
$title = Title::newFromID( $info['pageid'] );
$curidParam = [ 'curid' => $info['pageid'] ];
}
if ( !$title || $title->isExternal() ) {
return null;
}
}
if ( isset( $info['revid'] ) ) {
if ( $info['revid'] === 0 && isset( $info['logid'] ) ) {
$logTitle = Title::makeTitle( NS_SPECIAL, 'Log' );
$titleUrl = $logTitle->getFullURL( [ 'logid' => $info['logid'] ] );
} else {
$titleUrl = $title->getFullURL( [ 'diff' => $info['revid'] ] );
}
} else {
$titleUrl = $title->getFullURL( $curidParam );
}
$comment = $info['comment'] ?? null;
// Create an anchor to section.
// The anchor won't work for sections that have dupes on page
// as there's no way to strip that info from ApiWatchlist (apparently?).
// RegExp in the line below is equal to MediaWiki\CommentFormatter\CommentParser::doSectionLinks().
if ( $this->linkToSections && $comment !== null &&
preg_match( '!(.*)/\*\s*(.*?)\s*\*/(.*)!', $comment, $matches )
) {
$titleUrl .= $this->parserFactory->getMainInstance()->guessSectionNameFromWikiText( $matches[ 2 ] );
}
$timestamp = $info['timestamp'];
if ( isset( $info['user'] ) ) {
$user = $info['user'];
$completeText = "$comment ($user)";
} else {
$user = '';
$completeText = (string)$comment;
}
return new FeedItem( $titleStr, $completeText, $titleUrl, $timestamp, $user );
}
/** @return ApiBase|null */
private function getWatchlistModule() {
$this->watchlistModule ??= $this->getMain()->getModuleManager()->getModule( 'query' )
->getModuleManager()->getModule( 'watchlist' );
return $this->watchlistModule;
}
public function getAllowedParams( $flags = 0 ) {
$feedFormatNames = array_keys( $this->getConfig()->get( MainConfigNames::FeedClasses ) );
$ret = [
'feedformat' => [
ParamValidator::PARAM_DEFAULT => 'rss',
ParamValidator::PARAM_TYPE => $feedFormatNames
],
'hours' => [
ParamValidator::PARAM_DEFAULT => 24,
ParamValidator::PARAM_TYPE => 'integer',
IntegerDef::PARAM_MIN => 1,
IntegerDef::PARAM_MAX => 72,
],
'linktosections' => false,
];
$copyParams = [
'allrev' => 'allrev',
'owner' => 'wlowner',
'token' => 'wltoken',
'show' => 'wlshow',
'type' => 'wltype',
'excludeuser' => 'wlexcludeuser',
];
// @phan-suppress-next-line PhanParamTooMany
$wlparams = $this->getWatchlistModule()->getAllowedParams( $flags );
foreach ( $copyParams as $from => $to ) {
$p = $wlparams[$from];
if ( !is_array( $p ) ) {
$p = [ ParamValidator::PARAM_DEFAULT => $p ];
}
if ( !isset( $p[ApiBase::PARAM_HELP_MSG] ) ) {
$p[ApiBase::PARAM_HELP_MSG] = "apihelp-query+watchlist-param-$from";
}
if ( isset( $p[ParamValidator::PARAM_TYPE] ) && is_array( $p[ParamValidator::PARAM_TYPE] ) &&
isset( $p[ApiBase::PARAM_HELP_MSG_PER_VALUE] )
) {
foreach ( $p[ParamValidator::PARAM_TYPE] as $v ) {
if ( !isset( $p[ApiBase::PARAM_HELP_MSG_PER_VALUE][$v] ) ) {
$p[ApiBase::PARAM_HELP_MSG_PER_VALUE][$v] = "apihelp-query+watchlist-paramvalue-$from-$v";
}
}
}
$ret[$to] = $p;
}
return $ret;
}
protected function getExamplesMessages() {
return [
'action=feedwatchlist'
=> 'apihelp-feedwatchlist-example-default',
'action=feedwatchlist&allrev=&hours=6'
=> 'apihelp-feedwatchlist-example-all6hrs',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Watchlist_feed';
}
}
/** @deprecated class alias since 1.43 */
class_alias( ApiFeedWatchlist::class, 'ApiFeedWatchlist' );