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<?php
/**
* Feed for list of changes.
*
* 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
*/
use MediaWiki\MediaWikiServices;
use MediaWiki\Revision\RevisionRecord;
/**
* Feed to Special:RecentChanges and Special:RecentChangesLinked.
*
* @ingroup Feed
*/
class ChangesFeed {
private $format;
/**
* @param string $format Feed's format (either 'rss' or 'atom')
*/
public function __construct( $format ) {
$this->format = $format;
}
/**
* Get a ChannelFeed subclass object to use
*
* @param string $title Feed's title
* @param string $description Feed's description
* @param string $url Url of origin page
* @return ChannelFeed|bool ChannelFeed subclass or false on failure
*/
public function getFeedObject( $title, $description, $url ) {
global $wgSitename, $wgLanguageCode, $wgFeedClasses;
if ( !isset( $wgFeedClasses[$this->format] ) ) {
return false;
}
if ( !array_key_exists( $this->format, $wgFeedClasses ) ) {
// falling back to atom
$this->format = 'atom';
}
$feedTitle = "$wgSitename - {$title} [$wgLanguageCode]";
return new $wgFeedClasses[$this->format](
$feedTitle, htmlspecialchars( $description ), $url );
}
/**
* Generate the feed items given a row from the database.
* @param object $rows IDatabase resource with recentchanges rows
* @return array
* @suppress PhanTypeInvalidDimOffset False positives in the foreach
*/
public static function buildItems( $rows ) {
$items = [];
# Merge adjacent edits by one user
$sorted = [];
$n = 0;
foreach ( $rows as $obj ) {
if ( $obj->rc_type == RC_EXTERNAL ) {
continue;
}
if ( $n > 0 &&
$obj->rc_type == RC_EDIT &&
$obj->rc_namespace >= 0 &&
$obj->rc_cur_id == $sorted[$n - 1]->rc_cur_id &&
$obj->rc_user_text == $sorted[$n - 1]->rc_user_text ) {
$sorted[$n - 1]->rc_last_oldid = $obj->rc_last_oldid;
} else {
$sorted[$n] = $obj;
$n++;
}
}
$nsInfo = MediaWikiServices::getInstance()->getNamespaceInfo();
foreach ( $sorted as $obj ) {
$title = Title::makeTitle( $obj->rc_namespace, $obj->rc_title );
$talkpage = $nsInfo->hasTalkNamespace( $obj->rc_namespace ) && $title->canExist()
? $title->getTalkPage()->getFullURL()
: '';
// Skip items with deleted content (avoids partially complete/inconsistent output)
if ( $obj->rc_deleted ) {
continue;
}
if ( $obj->rc_this_oldid ) {
$url = $title->getFullURL( [
'diff' => $obj->rc_this_oldid,
'oldid' => $obj->rc_last_oldid,
] );
} else {
// log entry or something like that.
$url = $title->getFullURL();
}
$items[] = new FeedItem(
$title->getPrefixedText(),
FeedUtils::formatDiff( $obj ),
$url,
$obj->rc_timestamp,
( $obj->rc_deleted & RevisionRecord::DELETED_USER )
? wfMessage( 'rev-deleted-user' )->escaped() : $obj->rc_user_text,
$talkpage
);
}
return $items;
}
}
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