/usr/share/mediawiki-extensions/collection/Collection.session.php is in mediawiki-extensions-collection 3.6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Collection Extension for MediaWiki
*
* Copyright (C) PediaPress GmbH
*
* 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
*/
class CollectionSession {
static function hasSession() {
if ( !session_id() ) return false;
return isset( $_SESSION['wsCollection'] );
}
static function startSession() {
if ( session_id() == '' ) {
wfSetupSession();
}
self::clearCollection();
}
static function touchSession() {
$collection = $_SESSION['wsCollection'];
$collection['timestamp'] = wfTimestampNow();
$_SESSION['wsCollection'] = $collection;
}
static function clearCollection() {
$_SESSION['wsCollection'] = array(
'enabled' => true,
'title' => '',
'subtitle' => '',
'items' => array(),
);
CollectionSuggest::clear();
self::touchSession();
}
static function enable() {
if ( !self::hasSession() ) {
self::startSession();
} else {
$_SESSION['wsCollection']['enabled'] = true;
self::touchSession();
}
}
static function disable() {
if ( !self::hasSession() ) {
return;
}
self::clearCollection();
$_SESSION['wsCollection']['enabled'] = false;
self::touchSession();
}
static function isEnabled() {
return ( self::hasSession() && $_SESSION['wsCollection']['enabled'] );
}
static function countArticles() {
if ( !self::hasSession() ) {
return 0;
}
$count = 0;
foreach ( $_SESSION['wsCollection']['items'] as $item ) {
if ( $item['type'] == 'article' ) {
$count++;
}
}
return $count;
}
static function findArticle( $title, $oldid = 0 ) {
if ( !self::hasSession() ) {
return - 1;
}
foreach ( $_SESSION['wsCollection']['items'] as $index => $item ) {
if ( $item['type'] == 'article' && $item['title'] == $title ) {
if ( $oldid ) {
if ( $item['revision'] == strval( $oldid ) ) {
return $index;
}
} else {
if ( $item['revision'] == $item['latest'] ) {
return $index;
}
}
}
}
return - 1;
}
static function purge() {
if ( !self::hasSession() ) {
return false;
}
$coll = $_SESSION['wsCollection'];
$newitems = array();
if ( isset( $coll['items'] ) ) {
$batch = new LinkBatch;
$lc = LinkCache::singleton();
foreach ( $coll['items'] as $item ) {
if ( $item['type'] == 'article' ) {
$t = Title::newFromText( $item['title'] );
$batch->addObj( $t );
}
}
$batch->execute();
foreach ( $coll['items'] as $item ) {
if ( $item['type'] == 'article' ) {
$t = Title::newFromText( $item['title'] );
if ( $t && !$lc->isBadLink( $t->getPrefixedDbKey() ) ) {
$newitems[] = $item;
}
} else {
$newitems[] = $item;
}
}
}
$coll['items'] = $newitems;
$_SESSION['wsCollection'] = $coll;
return true;
}
static function getCollection() {
return self::purge() ? $_SESSION['wsCollection'] : array();
}
static function setCollection( $collection ) {
$_SESSION['wsCollection'] = $collection;
self::touchSession();
}
}
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