includes/api/ApiQueryStashImageInfo.php

   1 <?php
   2 /**
   3  * API for MediaWiki 1.16+
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 /**
  24  * A query action to get image information from temporarily stashed files.
  25  *
  26  * @ingroup API
  27  */
  28 class ApiQueryStashImageInfo extends ApiQueryImageInfo {
  29
  30         public function __construct( $query, $moduleName ) {
  31                 parent::__construct( $query, $moduleName, 'sii' );
  32         }
  33
  34         public function execute() {
  35                 $params = $this->extractRequestParams();
  36                 $modulePrefix = $this->getModulePrefix();
  37
  38                 $prop = array_flip( $params['prop'] );
  39
  40                 $scale = $this->getScale( $params );
  41
  42                 $result = $this->getResult();
  43
  44                 if ( !$params['filekey'] && !$params['sessionkey'] ) {
  45                         $this->dieUsage( "One of filekey or sessionkey must be supplied", 'nofilekey' );
  46                 }
  47
  48                 // Alias sessionkey to filekey, but give an existing filekey precedence.
  49                 if ( !$params['filekey'] && $params['sessionkey'] ) {
  50                         $params['filekey'] = $params['sessionkey'];
  51                 }
  52
  53                 try {
  54                         $stash = RepoGroup::singleton()->getLocalRepo()->getUploadStash();
  55
  56                         foreach ( $params['filekey'] as $filekey ) {
  57                                 $file = $stash->getFile( $filekey );
  58                                 $finalThumbParam = $this->mergeThumbParams( $file, $scale, $params['urlparam'] );
  59                                 $imageInfo = ApiQueryImageInfo::getInfo( $file, $prop, $result, $finalThumbParam );
  60                                 $result->addValue( array( 'query', $this->getModuleName() ), null, $imageInfo );
  61                                 $result->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), $modulePrefix );
  62                         }
  63                 // @todo Update exception handling here to understand current getFile exceptions
  64                 } catch ( UploadStashNotAvailableException $e ) {
  65                         $this->dieUsage( "Session not available: " . $e->getMessage(), "nosession" );
  66                 } catch ( UploadStashFileNotFoundException $e ) {
  67                         $this->dieUsage( "File not found: " . $e->getMessage(), "invalidsessiondata" );
  68                 } catch ( UploadStashBadPathException $e ) {
  69                         $this->dieUsage( "Bad path: " . $e->getMessage(), "invalidsessiondata" );
  70                 }
  71         }
  72
  73         private $propertyFilter = array(
  74                 'user', 'userid', 'comment', 'parsedcomment',
  75                 'mediatype', 'archivename',
  76         );
  77
  78         public function getAllowedParams() {
  79                 return array(
  80                         'filekey' => array(
  81                                 ApiBase::PARAM_ISMULTI => true,
  82                                 ApiBase::PARAM_DFLT => null
  83                         ),
  84                         'sessionkey' => array(
  85                                 ApiBase::PARAM_ISMULTI => true,
  86                                 ApiBase::PARAM_DEPRECATED => true,
  87                                 ApiBase::PARAM_DFLT => null
  88                         ),
  89                         'prop' => array(
  90                                 ApiBase::PARAM_ISMULTI => true,
  91                                 ApiBase::PARAM_DFLT => 'timestamp|url',
  92                                 ApiBase::PARAM_TYPE => self::getPropertyNames( $this->propertyFilter )
  93                         ),
  94                         'urlwidth' => array(
  95                                 ApiBase::PARAM_TYPE => 'integer',
  96                                 ApiBase::PARAM_DFLT => -1
  97                         ),
  98                         'urlheight' => array(
  99                                 ApiBase::PARAM_TYPE => 'integer',
 100                                 ApiBase::PARAM_DFLT => -1
 101                         ),
 102                         'urlparam' => array(
 103                                 ApiBase::PARAM_TYPE => 'string',
 104                                 ApiBase::PARAM_DFLT => '',
 105                         ),
 106                 );
 107         }
 108
 109         /**
 110          * Return the API documentation for the parameters.
 111          * @return Array parameter documentation.
 112          */
 113         public function getParamDescription() {
 114                 $p = $this->getModulePrefix();
 115
 116                 return array(
 117                         'prop' => self::getPropertyDescriptions( $this->propertyFilter, $p ),
 118                         'filekey' => 'Key that identifies a previous upload that was stashed temporarily.',
 119                         'sessionkey' => 'Alias for filekey, for backward compatibility.',
 120                         'urlwidth' => "If {$p}prop=url is set, a URL to an image scaled to this width will be returned.",
 121                         'urlheight' => "Similar to {$p}urlwidth. Cannot be used without {$p}urlwidth",
 122                         'urlparam' => array( "A handler specific parameter string. For example, pdf's ",
 123                                 "might use 'page15-100px'. {$p}urlwidth must be used and be consistent with {$p}urlparam" ),
 124                 );
 125         }
 126
 127         public function getResultProperties() {
 128                 return ApiQueryImageInfo::getResultPropertiesFiltered( $this->propertyFilter );
 129         }
 130
 131         public function getDescription() {
 132                 return 'Returns image information for stashed images.';
 133         }
 134
 135         public function getExamples() {
 136                 return array(
 137                         'api.php?action=query&prop=stashimageinfo&siifilekey=124sd34rsdf567',
 138                         'api.php?action=query&prop=stashimageinfo&siifilekey=b34edoe3|bceffd4&' .
 139                                 'siiurlwidth=120&siiprop=url',
 140                 );
 141         }
 142 }