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                 $this->fld_timestamp = isset($prop['timestamp']);
  47                 $this->fld_user = isset($prop['user']);
  48                 $this->fld_comment = isset($prop['comment']);
  49                 $this->fld_url = isset($prop['url']);
  50                 $this->fld_size = isset($prop['size']);
  51                 $this->fld_sha1 = isset($prop['sha1']);
  52                 $this->fld_metadata = isset($prop['metadata']);
  53                 $this->fld_archivename = isset($prop['archivename']);
  54
  55                 if($params['urlheight'] != -1 && $params['urlwidth'] == -1)
  56                         $this->dieUsage("iiurlheight cannot be used without iiurlwidth", 'iiurlwidth');
  57                 $this->scale = ($params['urlwidth'] != -1);
  58                 $this->urlwidth = $params['urlwidth'];
  59                 $this->urlheight = $params['urlheight'];
  60
  61                 $pageIds = $this->getPageSet()->getAllTitlesByNamespace();
  62                 if (!empty($pageIds[NS_IMAGE])) {
  63                         foreach ($pageIds[NS_IMAGE] as $dbKey => $pageId) {
  64
  65                                 $title = Title :: makeTitle(NS_IMAGE, $dbKey);
  66                                 $img = wfFindFile($title);
  67
  68                                 $data = array();
  69                                 if ( !$img ) {
  70                                         $repository = '';
  71                                 } else {
  72
  73                                         $repository = $img->getRepoName();
  74
  75                                         // Get information about the current version first
  76                                         // Check that the current version is within the start-end boundaries
  77                                         if((is_null($params['start']) || $img->getTimestamp() <= $params['start']) &&
  78                                                         (is_null($params['end']) || $img->getTimestamp() >= $params['end'])) {
  79                                                 $data[] = $this->getInfo($img);
  80                                         }
  81
  82                                         // Now get the old revisions
  83                                         // Get one more to facilitate query-continue functionality
  84                                         $count = count($data);
  85                                         $oldies = $img->getHistory($params['limit'] - $count + 1, $params['start'], $params['end']);
  86                                         foreach($oldies as $oldie) {
  87                                                 if(++$count > $params['limit']) {
  88                                                         // We've reached the extra one which shows that there are additional pages to be had. Stop here...
  89                                                         // Only set a query-continue if there was only one title
  90                                                         if(count($pageIds[NS_IMAGE]) == 1)
  91                                                                 $this->setContinueEnumParameter('start', $oldie->getTimestamp());
  92                                                         break;
  93                                                 }
  94                                                 $data[] = $this->getInfo($oldie);
  95                                         }
  96                                 }
  97
  98                                 $this->getResult()->addValue(array(
  99                                                 'query', 'pages', intval($pageId)),
 100                                                 'imagerepository', $repository
 101                                 );
 102                                 if (!empty($data))
 103                                         $this->addPageSubItems($pageId, $data);
 104                         }
 105                 }
 106         }
 107
 108         /**
 109          * Get result information for an image revision
 110          * @param File f The image
 111          * @return array Result array
 112          */
 113         protected function getInfo($f) {
 114                 $vals = array();
 115                 if($this->fld_timestamp)
 116                         $vals['timestamp'] = wfTimestamp(TS_ISO_8601, $f->getTimestamp());
 117                 if($this->fld_user) {
 118                         $vals['user'] = $f->getUser();
 119                         if(!$f->getUser('id'))
 120                                 $vals['anon'] = '';
 121                 }
 122                 if($this->fld_size) {
 123                         $vals['size'] = intval($f->getSize());
 124                         $vals['width'] = intval($f->getWidth());
 125                         $vals['height'] = intval($f->getHeight());
 126                 }
 127                 if($this->fld_url) {
 128                         if($this->scale && !$f->isOld()) {
 129                                 $thumb = $f->getThumbnail($this->urlwidth, $this->urlheight);
 130                                 if($thumb)
 131                                 {
 132                                         $vals['thumburl'] = wfExpandUrl( $thumb->getURL() );
 133                                         $vals['thumbwidth'] = $thumb->getWidth();
 134                                         $vals['thumbheight'] = $thumb->getHeight();
 135                                 }
 136                         }
 137                         $vals['url'] = $f->getFullURL();
 138                 }
 139                 if($this->fld_comment)
 140                         $vals['comment'] = $f->getDescription();
 141                 if($this->fld_sha1)
 142                         $vals['sha1'] = wfBaseConvert($f->getSha1(), 36, 16, 40);
 143                 if($this->fld_metadata) {
 144                         $metadata = unserialize($f->getMetadata());
 145                         $vals['metadata'] = $metadata ? $metadata : null;
 146                         $this->getResult()->setIndexedTagName_recursive($vals['metadata'], 'meta');
 147                 }
 148                 if($this->fld_archivename && $f->isOld())
 149                         $vals['archivename'] = $f->getArchiveName();
 150
 151                 return $vals;
 152         }
 153
 154         public function getAllowedParams() {
 155                 return array (
 156                         'prop' => array (
 157                                 ApiBase :: PARAM_ISMULTI => true,
 158                                 ApiBase :: PARAM_DFLT => 'timestamp|user',
 159                                 ApiBase :: PARAM_TYPE => array (
 160                                         'timestamp',
 161                                         'user',
 162                                         'comment',
 163                                         'url',
 164                                         'size',
 165                                         'sha1',
 166                                         'metadata',
 167                                         'archivename'
 168                                 )
 169                         ),
 170                         'limit' => array(
 171                                 ApiBase :: PARAM_TYPE => 'limit',
 172                                 ApiBase :: PARAM_DFLT => 1,
 173                                 ApiBase :: PARAM_MIN => 1,
 174                                 ApiBase :: PARAM_MAX => ApiBase :: LIMIT_BIG1,
 175                                 ApiBase :: PARAM_MAX2 => ApiBase :: LIMIT_BIG2
 176                         ),
 177                         'start' => array(
 178                                 ApiBase :: PARAM_TYPE => 'timestamp'
 179                         ),
 180                         'end' => array(
 181                                 ApiBase :: PARAM_TYPE => 'timestamp'
 182                         ),
 183                         'urlwidth' => array(
 184                                 ApiBase :: PARAM_TYPE => 'integer',
 185                                 ApiBase :: PARAM_DFLT => -1
 186                         ),
 187                         'urlheight' => array(
 188                                 ApiBase :: PARAM_TYPE => 'integer',
 189                                 ApiBase :: PARAM_DFLT => -1
 190                         )
 191                 );
 192         }
 193
 194         public function getParamDescription() {
 195                 return array (
 196                         'prop' => 'What image information to get.',
 197                         'limit' => 'How many image revisions to return',
 198                         'start' => 'Timestamp to start listing from',
 199                         'end' => 'Timestamp to stop listing at',
 200                         '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.',
 201                         'urlheight' => 'Similar to iiurlwidth. Cannot be used without iiurlwidth',
 202                 );
 203         }
 204
 205         public function getDescription() {
 206                 return array (
 207                         'Returns image information and upload history'
 208                 );
 209         }
 210
 211         protected function getExamples() {
 212                 return array (
 213                         'api.php?action=query&titles=Image:Albert%20Einstein%20Head.jpg&prop=imageinfo',
 214                         'api.php?action=query&titles=Image:Test.jpg&prop=imageinfo&iilimit=50&iiend=20071231235959&iiprop=timestamp|user|url',
 215                 );
 216         }
 217
 218         public function getVersion() {
 219                 return __CLASS__ . ': $Id$';
 220         }
 221 }