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| 1 | <?php |
| 2 | /** |
| 3 | * Copyright © 2008 Yuri Astrakhan "<Firstname><Lastname>@gmail.com", |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 18 | * http://www.gnu.org/copyleft/gpl.html |
| 19 | * |
| 20 | * @file |
| 21 | */ |
| 22 | |
| 23 | use MediaWiki\MainConfigNames; |
| 24 | use MediaWiki\Page\PageIdentity; |
| 25 | use MediaWiki\Title\Title; |
| 26 | use MediaWiki\Title\TitleFormatter; |
| 27 | use MediaWiki\User\User; |
| 28 | use MediaWiki\Watchlist\WatchlistManager; |
| 29 | use Wikimedia\ParamValidator\ParamValidator; |
| 30 | use Wikimedia\ParamValidator\TypeDef\ExpiryDef; |
| 31 | |
| 32 | /** |
| 33 | * API module to allow users to watch a page |
| 34 | * |
| 35 | * @ingroup API |
| 36 | */ |
| 37 | class ApiWatch extends ApiBase { |
| 38 | private $mPageSet = null; |
| 39 | |
| 40 | /** @var bool Whether watchlist expiries are enabled. */ |
| 41 | private $expiryEnabled; |
| 42 | |
| 43 | /** @var string Relative maximum expiry. */ |
| 44 | private $maxDuration; |
| 45 | |
| 46 | protected WatchlistManager $watchlistManager; |
| 47 | private TitleFormatter $titleFormatter; |
| 48 | |
| 49 | public function __construct( |
| 50 | ApiMain $mainModule, |
| 51 | $moduleName, |
| 52 | WatchlistManager $watchlistManager, |
| 53 | TitleFormatter $titleFormatter |
| 54 | ) { |
| 55 | parent::__construct( $mainModule, $moduleName ); |
| 56 | |
| 57 | $this->watchlistManager = $watchlistManager; |
| 58 | $this->titleFormatter = $titleFormatter; |
| 59 | $this->expiryEnabled = $this->getConfig()->get( MainConfigNames::WatchlistExpiry ); |
| 60 | $this->maxDuration = $this->getConfig()->get( MainConfigNames::WatchlistExpiryMaxDuration ); |
| 61 | } |
| 62 | |
| 63 | public function execute() { |
| 64 | $user = $this->getUser(); |
| 65 | if ( !$user->isRegistered() |
| 66 | || ( $user->isTemp() && !$user->isAllowed( 'editmywatchlist' ) ) |
| 67 | ) { |
| 68 | $this->dieWithError( 'watchlistanontext', 'notloggedin' ); |
| 69 | } |
| 70 | |
| 71 | $this->checkUserRightsAny( 'editmywatchlist' ); |
| 72 | |
| 73 | $params = $this->extractRequestParams(); |
| 74 | |
| 75 | $continuationManager = new ApiContinuationManager( $this, [], [] ); |
| 76 | $this->setContinuationManager( $continuationManager ); |
| 77 | |
| 78 | $pageSet = $this->getPageSet(); |
| 79 | // by default we use pageset to extract the page to work on. |
| 80 | // title is still supported for backward compatibility |
| 81 | if ( !isset( $params['title'] ) ) { |
| 82 | $pageSet->execute(); |
| 83 | $res = $pageSet->getInvalidTitlesAndRevisions( [ |
| 84 | 'invalidTitles', |
| 85 | 'special', |
| 86 | 'missingIds', |
| 87 | 'missingRevIds', |
| 88 | 'interwikiTitles' |
| 89 | ] ); |
| 90 | |
| 91 | foreach ( $pageSet->getMissingPages() as $page ) { |
| 92 | $r = $this->watchTitle( $page, $user, $params ); |
| 93 | $r['missing'] = true; |
| 94 | $res[] = $r; |
| 95 | } |
| 96 | |
| 97 | foreach ( $pageSet->getGoodPages() as $page ) { |
| 98 | $r = $this->watchTitle( $page, $user, $params ); |
| 99 | $res[] = $r; |
| 100 | } |
| 101 | ApiResult::setIndexedTagName( $res, 'w' ); |
| 102 | } else { |
| 103 | // dont allow use of old title parameter with new pageset parameters. |
| 104 | $extraParams = array_keys( array_filter( $pageSet->extractRequestParams(), static function ( $x ) { |
| 105 | return $x !== null && $x !== false; |
| 106 | } ) ); |
| 107 | |
| 108 | if ( $extraParams ) { |
| 109 | $this->dieWithError( |
| 110 | [ |
| 111 | 'apierror-invalidparammix-cannotusewith', |
| 112 | $this->encodeParamName( 'title' ), |
| 113 | $pageSet->encodeParamName( $extraParams[0] ) |
| 114 | ], |
| 115 | 'invalidparammix' |
| 116 | ); |
| 117 | } |
| 118 | |
| 119 | $title = Title::newFromText( $params['title'] ); |
| 120 | if ( !$title || !$this->watchlistManager->isWatchable( $title ) ) { |
| 121 | $this->dieWithError( [ 'invalidtitle', $params['title'] ] ); |
| 122 | } |
| 123 | $res = $this->watchTitle( $title, $user, $params, true ); |
| 124 | } |
| 125 | $this->getResult()->addValue( null, $this->getModuleName(), $res ); |
| 126 | |
| 127 | $this->setContinuationManager( null ); |
| 128 | $continuationManager->setContinuationIntoResult( $this->getResult() ); |
| 129 | } |
| 130 | |
| 131 | private function watchTitle( PageIdentity $page, User $user, array $params, |
| 132 | $compatibilityMode = false |
| 133 | ) { |
| 134 | $res = [ 'title' => $this->titleFormatter->getPrefixedText( $page ), 'ns' => $page->getNamespace() ]; |
| 135 | |
| 136 | if ( !$this->watchlistManager->isWatchable( $page ) ) { |
| 137 | $res['watchable'] = 0; |
| 138 | return $res; |
| 139 | } |
| 140 | |
| 141 | if ( $params['unwatch'] ) { |
| 142 | $status = $this->watchlistManager->removeWatch( $user, $page ); |
| 143 | $res['unwatched'] = $status->isOK(); |
| 144 | } else { |
| 145 | $expiry = null; |
| 146 | |
| 147 | // NOTE: If an expiry parameter isn't given, any existing expiries remain unchanged. |
| 148 | if ( $this->expiryEnabled && isset( $params['expiry'] ) ) { |
| 149 | $expiry = $params['expiry']; |
| 150 | $res['expiry'] = ApiResult::formatExpiry( $expiry ); |
| 151 | } |
| 152 | |
| 153 | $status = $this->watchlistManager->addWatch( $user, $page, $expiry ); |
| 154 | $res['watched'] = $status->isOK(); |
| 155 | } |
| 156 | |
| 157 | if ( !$status->isOK() ) { |
| 158 | if ( $compatibilityMode ) { |
| 159 | $this->dieStatus( $status ); |
| 160 | } |
| 161 | $res['errors'] = $this->getErrorFormatter()->arrayFromStatus( $status, 'error' ); |
| 162 | $res['warnings'] = $this->getErrorFormatter()->arrayFromStatus( $status, 'warning' ); |
| 163 | if ( !$res['warnings'] ) { |
| 164 | unset( $res['warnings'] ); |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | return $res; |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * Get a cached instance of an ApiPageSet object |
| 173 | * @return ApiPageSet |
| 174 | */ |
| 175 | private function getPageSet() { |
| 176 | $this->mPageSet ??= new ApiPageSet( $this ); |
| 177 | |
| 178 | return $this->mPageSet; |
| 179 | } |
| 180 | |
| 181 | public function mustBePosted() { |
| 182 | return true; |
| 183 | } |
| 184 | |
| 185 | public function isWriteMode() { |
| 186 | return true; |
| 187 | } |
| 188 | |
| 189 | public function needsToken() { |
| 190 | return 'watch'; |
| 191 | } |
| 192 | |
| 193 | public function getAllowedParams( $flags = 0 ) { |
| 194 | $result = [ |
| 195 | 'title' => [ |
| 196 | ParamValidator::PARAM_TYPE => 'string', |
| 197 | ParamValidator::PARAM_DEPRECATED => true, |
| 198 | ], |
| 199 | 'expiry' => [ |
| 200 | ParamValidator::PARAM_TYPE => 'expiry', |
| 201 | ExpiryDef::PARAM_MAX => $this->maxDuration, |
| 202 | ExpiryDef::PARAM_USE_MAX => true, |
| 203 | ], |
| 204 | 'unwatch' => false, |
| 205 | 'continue' => [ |
| 206 | ApiBase::PARAM_HELP_MSG => 'api-help-param-continue', |
| 207 | ], |
| 208 | ]; |
| 209 | |
| 210 | // If expiry is not enabled, don't accept the parameter. |
| 211 | if ( !$this->expiryEnabled ) { |
| 212 | unset( $result['expiry'] ); |
| 213 | } |
| 214 | |
| 215 | if ( $flags ) { |
| 216 | $result += $this->getPageSet()->getFinalParams( $flags ); |
| 217 | } |
| 218 | |
| 219 | return $result; |
| 220 | } |
| 221 | |
| 222 | protected function getExamplesMessages() { |
| 223 | $title = Title::newMainPage()->getPrefixedText(); |
| 224 | $mp = rawurlencode( $title ); |
| 225 | |
| 226 | // Logically expiry example should go before unwatch examples. |
| 227 | $examples = [ |
| 228 | "action=watch&titles={$mp}&token=123ABC" |
| 229 | => 'apihelp-watch-example-watch', |
| 230 | ]; |
| 231 | if ( $this->expiryEnabled ) { |
| 232 | $examples["action=watch&titles={$mp}|Foo|Bar&expiry=1%20month&token=123ABC"] |
| 233 | = 'apihelp-watch-example-watch-expiry'; |
| 234 | } |
| 235 | |
| 236 | return array_merge( $examples, [ |
| 237 | "action=watch&titles={$mp}&unwatch=&token=123ABC" |
| 238 | => 'apihelp-watch-example-unwatch', |
| 239 | 'action=watch&generator=allpages&gapnamespace=0&token=123ABC' |
| 240 | => 'apihelp-watch-example-generator', |
| 241 | ] ); |
| 242 | } |
| 243 | |
| 244 | public function getHelpUrls() { |
| 245 | return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Watch'; |
| 246 | } |
| 247 | } |