includes/specials/SpecialMIMEsearch.php

   1 <?php
   2 /**
   3  * Implements Special:MIMESearch
   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  * @ingroup SpecialPage
  22  * @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
  23  */
  24
  25 /**
  26  * Searches the database for files of the requested MIME type, comparing this with the
  27  * 'img_major_mime' and 'img_minor_mime' fields in the image table.
  28  * @ingroup SpecialPage
  29  */
  30 class MIMEsearchPage extends QueryPage {
  31         protected $major, $minor;
  32
  33         function __construct( $name = 'MIMEsearch' ) {
  34                 parent::__construct( $name );
  35         }
  36
  37         function isExpensive() { return true; }
  38         function isSyndicated() { return false; }
  39         function isCacheable() { return false; }
  40
  41         function linkParameters() {
  42                 return array( 'mime' => "{$this->major}/{$this->minor}" );
  43         }
  44
  45         public function getQueryInfo() {
  46                 return array(
  47                         'tables' => array( 'image' ),
  48                         'fields' => array( "'" . NS_FILE . "' AS namespace",
  49                                         'img_name AS title',
  50                                         'img_major_mime AS value',
  51                                         'img_size',
  52                                         'img_width',
  53                                         'img_height',
  54                                         'img_user_text',
  55                                         'img_timestamp' ),
  56                         'conds' => array( 'img_major_mime' => $this->major,
  57                                         'img_minor_mime' => $this->minor )
  58                 );
  59         }
  60
  61         function execute( $par ) {
  62                 global $wgRequest, $wgOut;
  63                 $mime = $par ? $par : $wgRequest->getText( 'mime' );
  64
  65                 $this->setHeaders();
  66                 $this->outputHeader();
  67                 $wgOut->addHTML(
  68                         Xml::openElement( 'form', array( 'id' => 'specialmimesearch', 'method' => 'get', 'action' => SpecialPage::getTitleFor( 'MIMEsearch' )->getLocalUrl() ) ) .
  69                         Xml::openElement( 'fieldset' ) .
  70                         Html::hidden( 'title', SpecialPage::getTitleFor( 'MIMEsearch' )->getPrefixedText() ) .
  71                         Xml::element( 'legend', null, wfMsg( 'mimesearch' ) ) .
  72                         Xml::inputLabel( wfMsg( 'mimetype' ), 'mime', 'mime', 20, $mime ) . ' ' .
  73                         Xml::submitButton( wfMsg( 'ilsubmit' ) ) .
  74                         Xml::closeElement( 'fieldset' ) .
  75                         Xml::closeElement( 'form' )
  76                 );
  77
  78                 list( $this->major, $this->minor ) = self::parseMIME( $mime );
  79                 if ( $this->major == '' || $this->minor == '' || !self::isValidType( $this->major ) ) {
  80                         return;
  81                 }
  82                 parent::execute( $par );
  83         }
  84
  85
  86         function formatResult( $skin, $result ) {
  87                 global $wgContLang, $wgLang;
  88
  89                 $nt = Title::makeTitle( $result->namespace, $result->title );
  90                 $text = $wgContLang->convert( $nt->getText() );
  91                 $plink = $skin->link(
  92                         Title::newFromText( $nt->getPrefixedText() ),
  93                         htmlspecialchars( $text )
  94                 );
  95
  96                 $download = $skin->makeMediaLinkObj( $nt, wfMsgHtml( 'download' ) );
  97                 $bytes = wfMsgExt( 'nbytes', array( 'parsemag', 'escape' ),
  98                         $wgLang->formatNum( $result->img_size ) );
  99                 $dimensions = htmlspecialchars( wfMsg( 'widthheight',
 100                         $wgLang->formatNum( $result->img_width ),
 101                         $wgLang->formatNum( $result->img_height )
 102                 ) );
 103                 $user = $skin->link( Title::makeTitle( NS_USER, $result->img_user_text ), htmlspecialchars( $result->img_user_text ) );
 104                 $time = htmlspecialchars( $wgLang->timeanddate( $result->img_timestamp ) );
 105
 106                 return "($download) $plink . . $dimensions . . $bytes . . $user . . $time";
 107         }
 108
 109         protected static function parseMIME( $str ) {
 110                 // searched for an invalid MIME type.
 111                 if( strpos( $str, '/' ) === false ) {
 112                         return array( '', '' );
 113                 }
 114
 115                 list( $major, $minor ) = explode( '/', $str, 2 );
 116
 117                 return array(
 118                         ltrim( $major, ' ' ),
 119                         rtrim( $minor, ' ' )
 120                 );
 121         }
 122
 123         protected static function isValidType( $type ) {
 124                 // From maintenance/tables.sql => img_major_mime
 125                 $types = array(
 126                         'unknown',
 127                         'application',
 128                         'audio',
 129                         'image',
 130                         'text',
 131                         'video',
 132                         'message',
 133                         'model',
 134                         'multipart'
 135                 );
 136                 return in_array( $type, $types );
 137         }
 138 }