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<?php
/**
*
*
* Created on Jan 4, 2008
*
* Copyright © 2008 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
*/
/**
* API module to allow users to watch a page
*
* @ingroup API
*/
class ApiWatch extends ApiBase {
private $mPageSet = null;
public function execute() {
$user = $this->getUser();
if ( !$user->isLoggedIn() ) {
$this->dieUsage( 'You must be logged-in to have a watchlist', 'notloggedin' );
}
if ( !$user->isAllowed( 'editmywatchlist' ) ) {
$this->dieUsage( 'You don\'t have permission to edit your watchlist', 'permissiondenied' );
}
$params = $this->extractRequestParams();
$continuationManager = new ApiContinuationManager( $this, [], [] );
$this->setContinuationManager( $continuationManager );
$pageSet = $this->getPageSet();
// by default we use pageset to extract the page to work on.
// title is still supported for backward compatibility
if ( !isset( $params['title'] ) ) {
$pageSet->execute();
$res = $pageSet->getInvalidTitlesAndRevisions( [
'invalidTitles',
'special',
'missingIds',
'missingRevIds',
'interwikiTitles'
] );
foreach ( $pageSet->getMissingTitles() as $title ) {
$r = $this->watchTitle( $title, $user, $params );
$r['missing'] = 1;
$res[] = $r;
}
foreach ( $pageSet->getGoodTitles() as $title ) {
$r = $this->watchTitle( $title, $user, $params );
$res[] = $r;
}
ApiResult::setIndexedTagName( $res, 'w' );
} else {
// dont allow use of old title parameter with new pageset parameters.
$extraParams = array_keys( array_filter( $pageSet->extractRequestParams(), function ( $x ) {
return $x !== null && $x !== false;
} ) );
if ( $extraParams ) {
$p = $this->getModulePrefix();
$this->dieUsage(
"The parameter {$p}title can not be used with " . implode( ', ', $extraParams ),
'invalidparammix'
);
}
$title = Title::newFromText( $params['title'] );
if ( !$title || !$title->isWatchable() ) {
$this->dieUsageMsg( [ 'invalidtitle', $params['title'] ] );
}
$res = $this->watchTitle( $title, $user, $params, true );
}
$this->getResult()->addValue( null, $this->getModuleName(), $res );
$this->setContinuationManager( null );
$continuationManager->setContinuationIntoResult( $this->getResult() );
}
private function watchTitle( Title $title, User $user, array $params,
$compatibilityMode = false
) {
if ( !$title->isWatchable() ) {
return [ 'title' => $title->getPrefixedText(), 'watchable' => 0 ];
}
$res = [ 'title' => $title->getPrefixedText() ];
if ( $params['unwatch'] ) {
$status = UnwatchAction::doUnwatch( $title, $user );
$res['unwatched'] = $status->isOK();
if ( $status->isOK() ) {
$res['message'] = $this->msg( 'removedwatchtext', $title->getPrefixedText() )
->title( $title )->parseAsBlock();
}
} else {
$status = WatchAction::doWatch( $title, $user );
$res['watched'] = $status->isOK();
if ( $status->isOK() ) {
$res['message'] = $this->msg( 'addedwatchtext', $title->getPrefixedText() )
->title( $title )->parseAsBlock();
}
}
if ( !$status->isOK() ) {
if ( $compatibilityMode ) {
$this->dieStatus( $status );
}
$res['error'] = $this->getErrorFromStatus( $status );
}
return $res;
}
/**
* Get a cached instance of an ApiPageSet object
* @return ApiPageSet
*/
private function getPageSet() {
if ( $this->mPageSet === null ) {
$this->mPageSet = new ApiPageSet( $this );
}
return $this->mPageSet;
}
public function mustBePosted() {
return true;
}
public function isWriteMode() {
return true;
}
public function needsToken() {
return 'watch';
}
public function getAllowedParams( $flags = 0 ) {
$result = [
'title' => [
ApiBase::PARAM_TYPE => 'string',
ApiBase::PARAM_DEPRECATED => true
],
'unwatch' => false,
'continue' => [
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
],
];
if ( $flags ) {
$result += $this->getPageSet()->getFinalParams( $flags );
}
return $result;
}
protected function getExamplesMessages() {
return [
'action=watch&titles=Main_Page&token=123ABC'
=> 'apihelp-watch-example-watch',
'action=watch&titles=Main_Page&unwatch=&token=123ABC'
=> 'apihelp-watch-example-unwatch',
'action=watch&generator=allpages&gapnamespace=0&token=123ABC'
=> 'apihelp-watch-example-generator',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/API:Watch';
}
}
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