includes/api/ApiQueryImageInfo.php

   1 <?php
   2
   3 /*
   4  * Created on July 6, 2007
   5  *
   6  * API for MediaWiki 1.8+
   7  *
   8  * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  * http://www.gnu.org/copyleft/gpl.html
  24  */
  25
  26 if (!defined('MEDIAWIKI')) {
  27         // Eclipse helper - will be ignored in production
  28         require_once ('ApiQueryBase.php');
  29 }
  30
  31 /**
  32  * A query action to get image information and upload history.
  33  *
  34  * @addtogroup API
  35  */
  36 class ApiQueryImageInfo extends ApiQueryBase {
  37
  38         public function __construct($query, $moduleName) {
  39                 parent :: __construct($query, $moduleName, 'ii');
  40         }
  41
  42         public function execute() {
  43                 $params = $this->extractRequestParams();
  44
  45                 $prop = array_flip($params['prop']);
  46
  47                 if($params['urlheight'] != -1 && $params['urlwidth'] == -1)
  48                         $this->dieUsage("iiurlheight cannot be used without iiurlwidth", 'iiurlwidth');
  49
  50                 if ( $params['urlwidth'] != -1 ) {
  51                         $scale = array();
  52                         $scale['width'] = $params['urlwidth'];
  53                         $scale['height'] = $params['urlheight'];
  54                 } else {
  55                         $scale = null;
  56                 }
  57
  58                 $pageIds = $this->getPageSet()->getAllTitlesByNamespace();
  59                 if (!empty($pageIds[NS_IMAGE])) {
  60
  61                         $result = $this->getResult();
  62                         foreach ($pageIds[NS_IMAGE] as $dbKey => $pageId) {
  63
  64                                 $title = Title :: makeTitle(NS_IMAGE, $dbKey);
  65                                 $img = wfFindFile($title);
  66
  67                                 $data = array();
  68                                 if ( !$img ) {
  69                                         $repository = '';
  70                                 } else {
  71
  72                                         $repository = $img->getRepoName();
  73
  74                                         // Get information about the current version first
  75                                         // Check that the current version is within the start-end boundaries
  76                                         if((is_null($params['start']) || $img->getTimestamp() <= $params['start']) &&
  77                                                         (is_null($params['end']) || $img->getTimestamp() >= $params['end'])) {
  78                                                 $data[] = self::getInfo( $img, $prop, $result, $scale );
  79                                         }
  80
  81                                         // Now get the old revisions
  82                                         // Get one more to facilitate query-continue functionality
  83                                         $count = count($data);
  84                                         $oldies = $img->getHistory($params['limit'] - $count + 1, $params['start'], $params['end']);
  85                                         foreach($oldies as $oldie) {
  86                                                 if(++$count > $params['limit']) {
  87                                                         // We've reached the extra one which shows that there are additional pages to be had. Stop here...
  88                                                         // Only set a query-continue if there was only one title
  89                                                         if(count($pageIds[NS_IMAGE]) == 1)
  90                                                                 $this->setContinueEnumParameter('start', $oldie->getTimestamp());
  91                                                         break;
  92                                                 }
  93                                                 $data[] = self::getInfo( $oldie, $prop, $result );
  94                                         }
  95                                 }
  96
  97                                 $result->addValue(array(
  98                                                 'query', 'pages', intval($pageId)),
  99                                                 'imagerepository', $repository
 100                                 );
 101                                 if (!empty($data))
 102                                         $this->addPageSubItems($pageId, $data);
 103                         }
 104                 }
 105         }
 106
 107         /**
 108          * Get result information for an image revision
 109          * @param File f The image
 110          * @return array Result array
 111          */
 112         static function getInfo($file, $prop, $result, $scale = null) {
 113                 $vals = array();
 114                 if( isset( $prop['timestamp'] ) )
 115                         $vals['timestamp'] = wfTimestamp(TS_ISO_8601, $file->getTimestamp());
 116                 if( isset( $prop['user'] ) ) {
 117                         $vals['user'] = $file->getUser();
 118                         if( !$file->getUser( 'id' ) )
 119                                 $vals['anon'] = '';
 120                 }
 121                 if( isset( $prop['size'] ) || isset( $prop['dimensions'] ) ) {
 122                         $vals['size'] = intval( $file->getSize() );
 123                         $vals['width'] = intval( $file->getWidth() );
 124                         $vals['height'] = intval( $file->getHeight() );
 125                 }
 126                 if( isset( $prop['url'] ) ) {
 127                         if( !is_null( $scale ) && !$file->isOld() ) {
 128                                 $thumb = $file->getThumbnail( $scale['width'], $scale['height'] );
 129                                 if( $thumb )
 130                                 {
 131                                         $vals['thumburl'] = wfExpandUrl( $thumb->getURL() );
 132                                         $vals['thumbwidth'] = $thumb->getWidth();
 133                                         $vals['thumbheight'] = $thumb->getHeight();
 134                                 }
 135                         }
 136                         $vals['url'] = $file->getFullURL();
 137                 }
 138                 if( isset( $prop['comment'] ) )
 139                         $vals['comment'] = $file->getDescription();
 140                 if( isset( $prop['sha1'] ) )
 141                         $vals['sha1'] = wfBaseConvert( $file->getSha1(), 36, 16, 40 );
 142                 if( isset( $prop['metadata'] ) ) {
 143                         $metadata = $file->getMetadata();
 144                         $vals['metadata'] = $metadata ? unserialize( $metadata ) : null;
 145                         $result->setIndexedTagName_recursive( $vals['metadata'], 'meta' );
 146                 }
 147                 if( isset( $prop['mimetype'] ) )
 148                         $vals['mime'] = $file->getMimeType();
 149
 150                 if( isset( $prop['archivename'] ) && $file->isOld() )
 151                         $vals['archivename'] = $file->getArchiveName();
 152
 153                 return $vals;
 154         }
 155
 156         public function getAllowedParams() {
 157                 return array (
 158                         'prop' => array (
 159                                 ApiBase :: PARAM_ISMULTI => true,
 160                                 ApiBase :: PARAM_DFLT => 'timestamp|user',
 161                                 ApiBase :: PARAM_TYPE => array (
 162                                         'timestamp',
 163                                         'user',
 164                                         'comment',
 165                                         'url',
 166                                         'size',
 167                                         'sha1',
 168                                         'mime',
 169                                         'metadata',
 170                                         'archivename'
 171                                 )
 172                         ),
 173                         'limit' => array(
 174                                 ApiBase :: PARAM_TYPE => 'limit',
 175                                 ApiBase :: PARAM_DFLT => 1,
 176                                 ApiBase :: PARAM_MIN => 1,
 177                                 ApiBase :: PARAM_MAX => ApiBase :: LIMIT_BIG1,
 178                                 ApiBase :: PARAM_MAX2 => ApiBase :: LIMIT_BIG2
 179                         ),
 180                         'start' => array(
 181                                 ApiBase :: PARAM_TYPE => 'timestamp'
 182                         ),
 183                         'end' => array(
 184                                 ApiBase :: PARAM_TYPE => 'timestamp'
 185                         ),
 186                         'urlwidth' => array(
 187                                 ApiBase :: PARAM_TYPE => 'integer',
 188                                 ApiBase :: PARAM_DFLT => -1
 189                         ),
 190                         'urlheight' => array(
 191                                 ApiBase :: PARAM_TYPE => 'integer',
 192                                 ApiBase :: PARAM_DFLT => -1
 193                         )
 194                 );
 195         }
 196
 197         public function getParamDescription() {
 198                 return array (
 199                         'prop' => 'What image information to get.',
 200                         'limit' => 'How many image revisions to return',
 201                         'start' => 'Timestamp to start listing from',
 202                         'end' => 'Timestamp to stop listing at',
 203                         'urlwidth' => 'If iiprop=url is set, a URL to an image scaled to this width will be returned. Only the current version of the image can be scaled.',
 204                         'urlheight' => 'Similar to iiurlwidth. Cannot be used without iiurlwidth',
 205                 );
 206         }
 207
 208         public function getDescription() {
 209                 return array (
 210                         'Returns image information and upload history'
 211                 );
 212         }
 213
 214         protected function getExamples() {
 215                 return array (
 216                         'api.php?action=query&titles=Image:Albert%20Einstein%20Head.jpg&prop=imageinfo',
 217                         'api.php?action=query&titles=Image:Test.jpg&prop=imageinfo&iilimit=50&iiend=20071231235959&iiprop=timestamp|user|url',
 218                 );
 219         }
 220
 221         public function getVersion() {
 222                 return __CLASS__ . ': $Id$';
 223         }
 224 }