]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/api/ApiQueryFilearchive.php
MediaWiki 1.17.0
[autoinstallsdev/mediawiki.git] / includes / api / ApiQueryFilearchive.php
diff --git a/includes/api/ApiQueryFilearchive.php b/includes/api/ApiQueryFilearchive.php
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+<?php
+/**
+ * API for MediaWiki 1.12+
+ *
+ * Created on May 10, 2010
+ *
+ * Copyright © 2010 Sam Reed
+ * Copyright © 2008 Vasiliev Victor vasilvv@gmail.com,
+ * based on ApiQueryAllpages.php
+ *
+ * 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
+ */
+
+if ( !defined( 'MEDIAWIKI' ) ) {
+       // Eclipse helper - will be ignored in production
+       require_once( 'ApiQueryBase.php' );
+}
+
+/**
+ * Query module to enumerate all deleted files.
+ *
+ * @ingroup API
+ */
+class ApiQueryFilearchive extends ApiQueryBase {
+
+       public function __construct( $query, $moduleName ) {
+               parent::__construct( $query, $moduleName, 'fa' );
+       }
+
+       public function execute() {
+               global $wgUser;
+               // Before doing anything at all, let's check permissions
+               if ( !$wgUser->isAllowed( 'deletedhistory' ) ) {
+                       $this->dieUsage( 'You don\'t have permission to view deleted file information', 'permissiondenied' );
+               }
+
+               $db = $this->getDB();
+
+               $params = $this->extractRequestParams();
+
+               $prop = array_flip( $params['prop'] );
+               $fld_sha1 = isset( $prop['sha1'] );
+               $fld_timestamp = isset( $prop['timestamp'] );
+               $fld_user = isset( $prop['user'] );
+               $fld_size = isset( $prop['size'] );
+               $fld_dimensions = isset( $prop['dimensions'] );
+               $fld_description = isset( $prop['description'] );
+               $fld_mime = isset( $prop['mime'] );
+               $fld_metadata = isset( $prop['metadata'] );
+               $fld_bitdepth = isset( $prop['bitdepth'] );
+
+               $this->addTables( 'filearchive' );
+
+               $this->addFields( array( 'fa_name', 'fa_deleted' ) );
+               $this->addFieldsIf( 'fa_storage_key', $fld_sha1 );
+               $this->addFieldsIf( 'fa_timestamp', $fld_timestamp );
+
+               if ( $fld_user ) {
+                       $this->addFields( array( 'fa_user', 'fa_user_text' ) );
+               }
+               $this->addFieldsIf( 'fa_size', $fld_size );
+
+               if ( $fld_dimensions ) {
+                       $this->addFields( array( 'fa_height', 'fa_width' ) );
+               }
+
+               $this->addFieldsIf( 'fa_description', $fld_description );
+
+               if ( $fld_mime ) {
+                       $this->addFields( array( 'fa_major_mime', 'fa_minor_mime' ) );
+               }
+
+               $this->addFieldsIf( 'fa_metadata', $fld_metadata );
+               $this->addFieldsIf( 'fa_bits', $fld_bitdepth );
+
+               // Image filters
+               $dir = ( $params['dir'] == 'descending' ? 'older' : 'newer' );
+               $from = ( is_null( $params['from'] ) ? null : $this->titlePartToKey( $params['from'] ) );
+               $this->addWhereRange( 'fa_name', $dir, $from, null );
+               if ( isset( $params['prefix'] ) ) {
+                       $this->addWhere( 'fa_name' . $db->buildLike( $this->titlePartToKey( $params['prefix'] ), $db->anyString() ) );
+               }
+               
+               if ( !$wgUser->isAllowed( 'suppressrevision' ) ) {
+                       // Filter out revisions that the user is not allowed to see. There
+                       // is no way to indicate that we have skipped stuff because the
+                       // continuation parameter is fa_name
+                       
+                       // Note that this field is unindexed. This should however not be
+                       // a big problem as files with fa_deleted are rare
+                       $this->addWhereFld( 'fa_deleted', 0 );
+               }
+
+               
+                       
+               $limit = $params['limit'];
+               $this->addOption( 'LIMIT', $limit + 1 );
+               $this->addOption( 'ORDER BY', 'fa_name' .
+                                               ( $params['dir'] == 'descending' ? ' DESC' : '' ) );
+
+               $res = $this->select( __METHOD__ );
+
+               $count = 0;
+               $result = $this->getResult();
+               foreach ( $res as $row ) {
+                       if ( ++$count > $limit ) {
+                               // We've reached the one extra which shows that there are additional pages to be had. Stop here...
+                               // TODO: Security issue - if the user has no right to view next title, it will still be shown
+                               $this->setContinueEnumParameter( 'from', $this->keyToTitle( $row->fa_name ) );
+                               break;
+                       }
+
+                       $file = array();
+                       $file['name'] = $row->fa_name;
+
+                       if ( $fld_sha1 ) {
+                               $file['sha1'] = wfBaseConvert( $row->fa_storage_key, 36, 16, 40 );
+                       }
+                       if ( $fld_timestamp ) {
+                               $file['timestamp'] = wfTimestamp( TS_ISO_8601, $row->fa_timestamp );
+                       }
+                       if ( $fld_user ) {
+                               $file['userid'] = $row->fa_user;
+                               $file['user'] = $row->fa_user_text;
+                       }
+                       if ( $fld_size ) {
+                               $file['size'] = $row->fa_size;
+                       }
+                       if ( $fld_dimensions ) {
+                               $file['height'] = $row->fa_height;
+                               $file['width'] = $row->fa_width;
+                       }
+                       if ( $fld_description ) {
+                               $file['description'] = $row->fa_description;
+                       }
+                       if ( $fld_metadata ) {
+                               $file['metadata'] = $row->fa_metadata ? ApiQueryImageInfo::processMetaData( unserialize( $row->fa_metadata ), $result ) : null;
+                       }
+                       if ( $fld_bitdepth ) {
+                               $file['bitdepth'] = $row->fa_bits;
+                       }
+                       if ( $fld_mime ) {
+                               $file['mime'] = "$row->fa_major_mime/$row->fa_minor_mime";
+                       }
+                       
+                       if ( $row->fa_deleted & File::DELETED_FILE ) {
+                               $file['filehidden'] = '';
+                       }
+                       if ( $row->fa_deleted & File::DELETED_COMMENT ) {
+                               $file['commenthidden'] = '';
+                       }
+                       if ( $row->fa_deleted & File::DELETED_USER ) {
+                               $file['userhidden'] = '';
+                       }
+                       if ( $row->fa_deleted & File::DELETED_RESTRICTED ) {
+                               // This file is deleted for normal admins
+                               $file['suppressed'] = '';
+                       }
+
+                       
+                       $fit = $result->addValue( array( 'query', $this->getModuleName() ), null, $file );
+                       if ( !$fit ) {
+                               $this->setContinueEnumParameter( 'from', $this->keyToTitle( $row->fa_name ) );
+                               break;
+                       }
+               }
+
+               $result->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'fa' );
+       }
+
+       public function getAllowedParams() {
+               return array (
+                       'from' => null,
+                       'prefix' => null,
+                       'limit' => array(
+                               ApiBase::PARAM_DFLT => 10,
+                               ApiBase::PARAM_TYPE => 'limit',
+                               ApiBase::PARAM_MIN => 1,
+                               ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
+                               ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
+                       ),
+                       'dir' => array(
+                               ApiBase::PARAM_DFLT => 'ascending',
+                               ApiBase::PARAM_TYPE => array(
+                                       'ascending',
+                                       'descending'
+                               )
+                       ),
+                       'prop' => array(
+                               ApiBase::PARAM_DFLT => 'timestamp',
+                               ApiBase::PARAM_ISMULTI => true,
+                               ApiBase::PARAM_TYPE => array(
+                                       'sha1',
+                                       'timestamp',
+                                       'user',
+                                       'size',
+                                       'dimensions',
+                                       'description',
+                                       'mime',
+                                       'metadata',
+                                       'bitdepth'
+                               ),
+                       ),
+               );
+       }
+
+       public function getParamDescription() {
+               return array(
+                       'from' => 'The image title to start enumerating from',
+                       'prefix' => 'Search for all image titles that begin with this value',
+                       'dir' => 'The direction in which to list',
+                       'limit' => 'How many total images to return',
+                       'prop' => array(
+                               'What image information to get:',
+                               ' sha1         - Adds sha1 hash for the image',
+                               ' timestamp    - Adds timestamp for the uploaded version',
+                               ' user         - Adds user who uploaded the image version',
+                               ' size         - Adds the size of the image in bytes',
+                               ' dimensions   - Adds the height and width of the image',
+                               ' description  - Adds description the image version',
+                               ' mime         - Adds MIME of the image',
+                               ' metadata     - Lists EXIF metadata for the version of the image',
+                               ' bitdepth     - Adds the bit depth of the version',
+            ),
+               );
+       }
+
+       public function getDescription() {
+               return 'Enumerate all deleted files sequentially';
+       }
+
+       public function getPossibleErrors() {
+               return array_merge( parent::getPossibleErrors(), array(
+                       array( 'code' => 'permissiondenied', 'info' => 'You don\'t have permission to view deleted file information' ),
+               ) );
+       }
+
+       protected function getExamples() {
+               return array(
+                       'Simple Use',
+                       ' Show a list of all deleted files',
+                       '  api.php?action=query&list=filearchive',
+               );
+       }
+
+       public function getVersion() {
+               return __CLASS__ . ': $Id: ApiQueryFilearchive.php 85354 2011-04-04 18:25:31Z demon $';
+       }
+}