includes/specials/SpecialFileDuplicateSearch.php

   1 <?php
   2 /**
   3  * Implements Special:FileDuplicateSearch
   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 Raimond Spekking, based on Special:MIMESearch by Ævar Arnfjörð Bjarmason
  23  */
  24
  25 /**
  26  * Searches the database for files of the requested hash, comparing this with the
  27  * 'img_sha1' field in the image table.
  28  *
  29  * @ingroup SpecialPage
  30  */
  31 class FileDuplicateSearchPage extends QueryPage {
  32         protected $hash, $filename;
  33
  34         function __construct( $name = 'FileDuplicateSearch' ) {
  35                 parent::__construct( $name );
  36         }
  37
  38         function isSyndicated() { return false; }
  39         function isCacheable() { return false; }
  40         function isCached() { return false; }
  41
  42         function linkParameters() {
  43                 return array( 'filename' => $this->filename );
  44         }
  45
  46         function getQueryInfo() {
  47                 return array(
  48                         'tables' => array( 'image' ),
  49                         'fields' => array(
  50                                 'img_name AS title',
  51                                 'img_sha1 AS value',
  52                                 'img_user_text',
  53                                 'img_timestamp'
  54                         ),
  55                         'conds' => array( 'img_sha1' => $this->hash )
  56                 );
  57         }
  58
  59         function execute( $par ) {
  60                 global $wgRequest, $wgOut, $wgLang, $wgContLang, $wgScript;
  61
  62                 $this->setHeaders();
  63                 $this->outputHeader();
  64
  65                 $this->filename =  isset( $par ) ?  $par : $wgRequest->getText( 'filename' );
  66                 $this->hash = '';
  67                 $title = Title::makeTitleSafe( NS_FILE, $this->filename );
  68                 if( $title && $title->getText() != '' ) {
  69                         $dbr = wfGetDB( DB_SLAVE );
  70                         $this->hash = $dbr->selectField( 'image', 'img_sha1', array( 'img_name' => $title->getDBkey() ), __METHOD__ );
  71                 }
  72
  73                 # Create the input form
  74                 $wgOut->addHTML(
  75                         Xml::openElement( 'form', array( 'id' => 'fileduplicatesearch', 'method' => 'get', 'action' => $wgScript ) ) .
  76                         Html::hidden( 'title', $this->getTitle()->getPrefixedDbKey() ) .
  77                         Xml::openElement( 'fieldset' ) .
  78                         Xml::element( 'legend', null, wfMsg( 'fileduplicatesearch-legend' ) ) .
  79                         Xml::inputLabel( wfMsg( 'fileduplicatesearch-filename' ), 'filename', 'filename', 50, $this->filename ) . ' ' .
  80                         Xml::submitButton( wfMsg( 'fileduplicatesearch-submit' ) ) .
  81                         Xml::closeElement( 'fieldset' ) .
  82                         Xml::closeElement( 'form' )
  83                 );
  84
  85                 if( $this->hash != '' ) {
  86                         $align = $wgContLang->alignEnd();
  87
  88                         # Show a thumbnail of the file
  89                         $img = wfFindFile( $title );
  90                         if ( $img ) {
  91                                 $thumb = $img->transform( array( 'width' => 120, 'height' => 120 ) );
  92                                 if( $thumb ) {
  93                                         $wgOut->addHTML( '<div style="float:' . $align . '" id="mw-fileduplicatesearch-icon">' .
  94                                                 $thumb->toHtml( array( 'desc-link' => false ) ) . '<br />' .
  95                                                 wfMsgExt( 'fileduplicatesearch-info', array( 'parse' ),
  96                                                         $wgLang->formatNum( $img->getWidth() ),
  97                                                         $wgLang->formatNum( $img->getHeight() ),
  98                                                         $wgLang->formatSize( $img->getSize() ),
  99                                                         $img->getMimeType()
 100                                                 ) .
 101                                                 '</div>' );
 102                                 }
 103                         }
 104
 105                         parent::execute( $par );
 106
 107                         # Show a short summary
 108                         if( $this->numRows == 1 ) {
 109                                 $wgOut->wrapWikiMsg(
 110                                         "<p class='mw-fileduplicatesearch-result-1'>\n$1\n</p>",
 111                                         array( 'fileduplicatesearch-result-1', $this->filename )
 112                                 );
 113                         } elseif ( $this->numRows > 1 ) {
 114                                 $wgOut->wrapWikiMsg(
 115                                         "<p class='mw-fileduplicatesearch-result-n'>\n$1\n</p>",
 116                                         array( 'fileduplicatesearch-result-n', $this->filename,
 117                                                 $wgLang->formatNum( $this->numRows - 1 ) )
 118                                 );
 119                         }
 120                 }
 121         }
 122
 123         function formatResult( $skin, $result ) {
 124                 global $wgContLang, $wgLang;
 125
 126                 $nt = Title::makeTitle( NS_FILE, $result->title );
 127                 $text = $wgContLang->convert( $nt->getText() );
 128                 $plink = $skin->link(
 129                         Title::newFromText( $nt->getPrefixedText() ),
 130                         $text
 131                 );
 132
 133                 $user = $skin->link( Title::makeTitle( NS_USER, $result->img_user_text ), $result->img_user_text );
 134                 $time = $wgLang->timeanddate( $result->img_timestamp );
 135
 136                 return "$plink . . $user . . $time";
 137         }
 138 }