includes/api/ApiFeedContributions.php

   1 <?php
   2 /**
   3  * Copyright © 2011 Sam Reed
   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\MediaWikiServices;
  24 use MediaWiki\Revision\RevisionAccessException;
  25 use MediaWiki\Revision\RevisionRecord;
  26 use MediaWiki\Revision\RevisionStore;
  27 use MediaWiki\Revision\SlotRecord;
  28
  29 /**
  30  * @ingroup API
  31  */
  32 class ApiFeedContributions extends ApiBase {
  33
  34         /** @var RevisionStore */
  35         private $revisionStore;
  36
  37         /** @var TitleParser */
  38         private $titleParser;
  39
  40         /**
  41          * This module uses a custom feed wrapper printer.
  42          *
  43          * @return ApiFormatFeedWrapper
  44          */
  45         public function getCustomPrinter() {
  46                 return new ApiFormatFeedWrapper( $this->getMain() );
  47         }
  48
  49         public function execute() {
  50                 $this->revisionStore = MediaWikiServices::getInstance()->getRevisionStore();
  51                 $this->titleParser = MediaWikiServices::getInstance()->getTitleParser();
  52
  53                 $params = $this->extractRequestParams();
  54
  55                 $config = $this->getConfig();
  56                 if ( !$config->get( 'Feed' ) ) {
  57                         $this->dieWithError( 'feed-unavailable' );
  58                 }
  59
  60                 $feedClasses = $config->get( 'FeedClasses' );
  61                 if ( !isset( $feedClasses[$params['feedformat']] ) ) {
  62                         $this->dieWithError( 'feed-invalid' );
  63                 }
  64
  65                 if ( $params['showsizediff'] && $this->getConfig()->get( 'MiserMode' ) ) {
  66                         $this->dieWithError( 'apierror-sizediffdisabled' );
  67                 }
  68
  69                 $msg = wfMessage( 'Contributions' )->inContentLanguage()->text();
  70                 $feedTitle = $config->get( 'Sitename' ) . ' - ' . $msg .
  71                         ' [' . $config->get( 'LanguageCode' ) . ']';
  72                 $feedUrl = SpecialPage::getTitleFor( 'Contributions', $params['user'] )->getFullURL();
  73
  74                 $target = 'newbies';
  75                 if ( $params['user'] != 'newbies' ) {
  76                         try {
  77                                 $target = $this->titleParser
  78                                         ->parseTitle( $params['user'], NS_USER )
  79                                         ->getText();
  80                         } catch ( MalformedTitleException $e ) {
  81                                 $this->dieWithError(
  82                                         [ 'apierror-baduser', 'user', wfEscapeWikiText( $params['user'] ) ],
  83                                         'baduser_' . $this->encodeParamName( 'user' )
  84                                 );
  85                         }
  86                 }
  87
  88                 $feed = new $feedClasses[$params['feedformat']] (
  89                         $feedTitle,
  90                         htmlspecialchars( $msg ),
  91                         $feedUrl
  92                 );
  93
  94                 // Convert year/month parameters to end parameter
  95                 $params['start'] = '';
  96                 $params['end'] = '';
  97                 $params = ContribsPager::processDateFilter( $params );
  98
  99                 $pager = new ContribsPager( $this->getContext(), [
 100                         'target' => $target,
 101                         'namespace' => $params['namespace'],
 102                         'start' => $params['start'],
 103                         'end' => $params['end'],
 104                         'tagFilter' => $params['tagfilter'],
 105                         'deletedOnly' => $params['deletedonly'],
 106                         'topOnly' => $params['toponly'],
 107                         'newOnly' => $params['newonly'],
 108                         'hideMinor' => $params['hideminor'],
 109                         'showSizeDiff' => $params['showsizediff'],
 110                 ] );
 111
 112                 $feedLimit = $this->getConfig()->get( 'FeedLimit' );
 113                 if ( $pager->getLimit() > $feedLimit ) {
 114                         $pager->setLimit( $feedLimit );
 115                 }
 116
 117                 $feedItems = [];
 118                 if ( $pager->getNumRows() > 0 ) {
 119                         $count = 0;
 120                         $limit = $pager->getLimit();
 121                         foreach ( $pager->mResult as $row ) {
 122                                 // ContribsPager selects one more row for navigation, skip that row
 123                                 if ( ++$count > $limit ) {
 124                                         break;
 125                                 }
 126                                 $item = $this->feedItem( $row );
 127                                 if ( $item !== null ) {
 128                                         $feedItems[] = $item;
 129                                 }
 130                         }
 131                 }
 132
 133                 ApiFormatFeedWrapper::setResult( $this->getResult(), $feed, $feedItems );
 134         }
 135
 136         protected function feedItem( $row ) {
 137                 // This hook is the api contributions equivalent to the
 138                 // ContributionsLineEnding hook. Hook implementers may cancel
 139                 // the hook to signal the user is not allowed to read this item.
 140                 $feedItem = null;
 141                 $hookResult = Hooks::run(
 142                         'ApiFeedContributions::feedItem',
 143                         [ $row, $this->getContext(), &$feedItem ]
 144                 );
 145                 // Hook returned a valid feed item
 146                 if ( $feedItem instanceof FeedItem ) {
 147                         return $feedItem;
 148                 // Hook was canceled and did not return a valid feed item
 149                 } elseif ( !$hookResult ) {
 150                         return null;
 151                 }
 152
 153                 // Hook completed and did not return a valid feed item
 154                 $title = Title::makeTitle( (int)$row->page_namespace, $row->page_title );
 155                 $user = $this->getUser();
 156
 157                 if ( $title && $this->getPermissionManager()->userCan( 'read', $user, $title ) ) {
 158                         $date = $row->rev_timestamp;
 159                         $comments = $title->getTalkPage()->getFullURL();
 160                         $revision = $this->revisionStore->newRevisionFromRow( $row );
 161
 162                         return new FeedItem(
 163                                 $title->getPrefixedText(),
 164                                 $this->feedItemDesc( $revision ),
 165                                 $title->getFullURL( [ 'diff' => $revision->getId() ] ),
 166                                 $date,
 167                                 $this->feedItemAuthor( $revision ),
 168                                 $comments
 169                         );
 170                 }
 171
 172                 return null;
 173         }
 174
 175         /**
 176          * @since 1.32, takes a RevisionRecord instead of a Revision
 177          * @param RevisionRecord $revision
 178          * @return string
 179          */
 180         protected function feedItemAuthor( RevisionRecord $revision ) {
 181                 $user = $revision->getUser();
 182                 return $user ? $user->getName() : '';
 183         }
 184
 185         /**
 186          * @since 1.32, takes a RevisionRecord instead of a Revision
 187          * @param RevisionRecord $revision
 188          * @return string
 189          */
 190         protected function feedItemDesc( RevisionRecord $revision ) {
 191                 $msg = wfMessage( 'colon-separator' )->inContentLanguage()->text();
 192                 try {
 193                         $content = $revision->getContent( SlotRecord::MAIN );
 194                 } catch ( RevisionAccessException $e ) {
 195                         $content = null;
 196                 }
 197
 198                 if ( $content instanceof TextContent ) {
 199                         // only textual content has a "source view".
 200                         $html = nl2br( htmlspecialchars( $content->getText() ) );
 201                 } else {
 202                         // XXX: we could get an HTML representation of the content via getParserOutput, but that may
 203                         //     contain JS magic and generally may not be suitable for inclusion in a feed.
 204                         //     Perhaps Content should have a getDescriptiveHtml method and/or a getSourceText method.
 205                         // Compare also FeedUtils::formatDiffRow.
 206                         $html = '';
 207                 }
 208
 209                 $comment = $revision->getComment();
 210
 211                 return '<p>' . htmlspecialchars( $this->feedItemAuthor( $revision ) ) . $msg .
 212                         htmlspecialchars( FeedItem::stripComment( $comment ? $comment->text : '' ) ) .
 213                         "</p>\n<hr />\n<div>" . $html . '</div>';
 214         }
 215
 216         public function getAllowedParams() {
 217                 $feedFormatNames = array_keys( $this->getConfig()->get( 'FeedClasses' ) );
 218
 219                 $ret = [
 220                         'feedformat' => [
 221                                 ApiBase::PARAM_DFLT => 'rss',
 222                                 ApiBase::PARAM_TYPE => $feedFormatNames
 223                         ],
 224                         'user' => [
 225                                 ApiBase::PARAM_TYPE => 'user',
 226                                 ApiBase::PARAM_REQUIRED => true,
 227                         ],
 228                         'namespace' => [
 229                                 ApiBase::PARAM_TYPE => 'namespace'
 230                         ],
 231                         'year' => [
 232                                 ApiBase::PARAM_TYPE => 'integer'
 233                         ],
 234                         'month' => [
 235                                 ApiBase::PARAM_TYPE => 'integer'
 236                         ],
 237                         'tagfilter' => [
 238                                 ApiBase::PARAM_ISMULTI => true,
 239                                 ApiBase::PARAM_TYPE => array_values( ChangeTags::listDefinedTags() ),
 240                                 ApiBase::PARAM_DFLT => '',
 241                         ],
 242                         'deletedonly' => false,
 243                         'toponly' => false,
 244                         'newonly' => false,
 245                         'hideminor' => false,
 246                         'showsizediff' => [
 247                                 ApiBase::PARAM_DFLT => false,
 248                         ],
 249                 ];
 250
 251                 if ( $this->getConfig()->get( 'MiserMode' ) ) {
 252                         $ret['showsizediff'][ApiBase::PARAM_HELP_MSG] = 'api-help-param-disabled-in-miser-mode';
 253                 }
 254
 255                 return $ret;
 256         }
 257
 258         protected function getExamplesMessages() {
 259                 return [
 260                         'action=feedcontributions&user=Example'
 261                                 => 'apihelp-feedcontributions-example-simple',
 262                 ];
 263         }
 264 }