1 files changed, 194 insertions, 0 deletions
diff --git a/www/wiki/includes/actions/WatchAction.php b/www/wiki/includes/actions/WatchAction.php
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+++ b/www/wiki/includes/actions/WatchAction.php
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+<?php
+/**
+ * Performs the watch actions on a page
+ *
+ * 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
+ *
+ * @file
+ * @ingroup Actions
+ */
+
+/**
+ * Page addition to a user's watchlist
+ *
+ * @ingroup Actions
+ */
+class WatchAction extends FormAction {
+
+	public function getName() {
+		return 'watch';
+	}
+
+	public function requiresUnblock() {
+		return false;
+	}
+
+	protected function getDescription() {
+		return '';
+	}
+
+	public function onSubmit( $data ) {
+		self::doWatch( $this->getTitle(), $this->getUser() );
+
+		return true;
+	}
+
+	protected function checkCanExecute( User $user ) {
+		// Must be logged in
+		if ( $user->isAnon() ) {
+			throw new UserNotLoggedIn( 'watchlistanontext', 'watchnologin' );
+		}
+
+		parent::checkCanExecute( $user );
+	}
+
+	protected function usesOOUI() {
+		return true;
+	}
+
+	protected function getFormFields() {
+		return [
+			'intro' => [
+				'type' => 'info',
+				'vertical-label' => true,
+				'raw' => true,
+				'default' => $this->msg( 'confirm-watch-top' )->parse()
+			]
+		];
+	}
+
+	protected function alterForm( HTMLForm $form ) {
+		$form->setWrapperLegendMsg( 'addwatch' );
+		$form->setSubmitTextMsg( 'confirm-watch-button' );
+		$form->setTokenSalt( 'watch' );
+	}
+
+	public function onSuccess() {
+		$msgKey = $this->getTitle()->isTalkPage() ? 'addedwatchtext-talk' : 'addedwatchtext';
+		$this->getOutput()->addWikiMsg( $msgKey, $this->getTitle()->getPrefixedText() );
+	}
+
+	/**
+	 * Watch or unwatch a page
+	 * @since 1.22
+	 * @param bool $watch Whether to watch or unwatch the page
+	 * @param Title $title Page to watch/unwatch
+	 * @param User $user User who is watching/unwatching
+	 * @return Status
+	 */
+	public static function doWatchOrUnwatch( $watch, Title $title, User $user ) {
+		if ( $user->isLoggedIn() &&
+			$user->isWatched( $title, User::IGNORE_USER_RIGHTS ) != $watch
+		) {
+			// If the user doesn't have 'editmywatchlist', we still want to
+			// allow them to add but not remove items via edits and such.
+			if ( $watch ) {
+				return self::doWatch( $title, $user, User::IGNORE_USER_RIGHTS );
+			} else {
+				return self::doUnwatch( $title, $user );
+			}
+		}
+
+		return Status::newGood();
+	}
+
+	/**
+	 * Watch a page
+	 * @since 1.22 Returns Status, $checkRights parameter added
+	 * @param Title $title Page to watch/unwatch
+	 * @param User $user User who is watching/unwatching
+	 * @param bool $checkRights Passed through to $user->addWatch()
+	 *     Pass User::CHECK_USER_RIGHTS or User::IGNORE_USER_RIGHTS.
+	 * @return Status
+	 */
+	public static function doWatch(
+		Title $title,
+		User $user,
+		$checkRights = User::CHECK_USER_RIGHTS
+	) {
+		if ( $checkRights && !$user->isAllowed( 'editmywatchlist' ) ) {
+			return User::newFatalPermissionDeniedStatus( 'editmywatchlist' );
+		}
+
+		$page = WikiPage::factory( $title );
+
+		$status = Status::newFatal( 'hookaborted' );
+		if ( Hooks::run( 'WatchArticle', [ &$user, &$page, &$status ] ) ) {
+			$status = Status::newGood();
+			$user->addWatch( $title, $checkRights );
+			Hooks::run( 'WatchArticleComplete', [ &$user, &$page ] );
+		}
+
+		return $status;
+	}
+
+	/**
+	 * Unwatch a page
+	 * @since 1.22 Returns Status
+	 * @param Title $title Page to watch/unwatch
+	 * @param User $user User who is watching/unwatching
+	 * @return Status
+	 */
+	public static function doUnwatch( Title $title, User $user ) {
+		if ( !$user->isAllowed( 'editmywatchlist' ) ) {
+			return User::newFatalPermissionDeniedStatus( 'editmywatchlist' );
+		}
+
+		$page = WikiPage::factory( $title );
+
+		$status = Status::newFatal( 'hookaborted' );
+		if ( Hooks::run( 'UnwatchArticle', [ &$user, &$page, &$status ] ) ) {
+			$status = Status::newGood();
+			$user->removeWatch( $title );
+			Hooks::run( 'UnwatchArticleComplete', [ &$user, &$page ] );
+		}
+
+		return $status;
+	}
+
+	/**
+	 * Get token to watch (or unwatch) a page for a user
+	 *
+	 * @param Title $title Title object of page to watch
+	 * @param User $user User for whom the action is going to be performed
+	 * @param string $action Optionally override the action to 'unwatch'
+	 * @return string Token
+	 * @since 1.18
+	 */
+	public static function getWatchToken( Title $title, User $user, $action = 'watch' ) {
+		if ( $action != 'unwatch' ) {
+			$action = 'watch';
+		}
+		// Match ApiWatch and ResourceLoaderUserTokensModule
+		return $user->getEditToken( $action );
+	}
+
+	/**
+	 * Get token to unwatch (or watch) a page for a user
+	 *
+	 * @param Title $title Title object of page to unwatch
+	 * @param User $user User for whom the action is going to be performed
+	 * @param string $action Optionally override the action to 'watch'
+	 * @return string Token
+	 * @since 1.18
+	 */
+	public static function getUnwatchToken( Title $title, User $user, $action = 'unwatch' ) {
+		return self::getWatchToken( $title, $user, $action );
+	}
+
+	public function doesWrites() {
+		return true;
+	}
+}