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<?php
/**
* Implements Special:FileDuplicateSearch
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup SpecialPage
* @author Raimond Spekking, based on Special:MIMESearch by Ævar Arnfjörð Bjarmason
*/
/**
* Searches the database for files of the requested hash, comparing this with the
* 'img_sha1' field in the image table.
*
* @ingroup SpecialPage
*/
class FileDuplicateSearchPage extends QueryPage {
protected $hash = '', $filename = '';
/**
* @var File $file selected reference file, if present
*/
protected $file = null;
function __construct( $name = 'FileDuplicateSearch' ) {
parent::__construct( $name );
}
function isSyndicated() {
return false;
}
function isCacheable() {
return false;
}
function isCached() {
return false;
}
function linkParameters() {
return array( 'filename' => $this->filename );
}
/**
* Fetch dupes from all connected file repositories.
*
* @return array Array of File objects
*/
function getDupes() {
return RepoGroup::singleton()->findBySha1( $this->hash );
}
/**
*
* @param array $dupes Array of File objects
*/
function showList( $dupes ) {
$html = array();
$html[] = $this->openList( 0 );
foreach ( $dupes as $dupe ) {
$line = $this->formatResult( null, $dupe );
$html[] = "<li>" . $line . "</li>";
}
$html[] = $this->closeList();
$this->getOutput()->addHtml( implode( "\n", $html ) );
}
function getQueryInfo() {
return array(
'tables' => array( 'image' ),
'fields' => array(
'title' => 'img_name',
'value' => 'img_sha1',
'img_user_text',
'img_timestamp'
),
'conds' => array( 'img_sha1' => $this->hash )
);
}
function execute( $par ) {
$this->setHeaders();
$this->outputHeader();
$this->filename = $par !== null ? $par : $this->getRequest()->getText( 'filename' );
$this->file = null;
$this->hash = '';
$title = Title::newFromText( $this->filename, NS_FILE );
if ( $title && $title->getText() != '' ) {
$this->file = wfFindFile( $title );
}
$out = $this->getOutput();
# Create the input form
$formFields = array(
'filename' => array(
'type' => 'text',
'name' => 'filename',
'label-message' => 'fileduplicatesearch-filename',
'id' => 'filename',
'size' => 50,
'value' => $this->filename,
'cssclass' => 'mw-ui-input-inline'
),
);
$hiddenFields = array(
'title' => $this->getPageTitle()->getPrefixedDBKey(),
);
$htmlForm = HTMLForm::factory( 'inline', $formFields, $this->getContext() );
$htmlForm->addHiddenFields( $hiddenFields );
$htmlForm->setAction( wfScript() );
$htmlForm->setMethod( 'get' );
$htmlForm->setSubmitProgressive();
$htmlForm->setSubmitTextMsg( $this->msg( 'fileduplicatesearch-submit' ) );
$htmlForm->setWrapperLegendMsg( 'fileduplicatesearch-legend' );
// The form should be visible always, even if it was submitted (e.g. to perform another action).
// To bypass the callback validation of HTMLForm, use prepareForm() and displayForm().
$htmlForm->prepareForm()->displayForm( false );
if ( $this->file ) {
$this->hash = $this->file->getSha1();
} elseif ( $this->filename !== '' ) {
$out->wrapWikiMsg(
"<p class='mw-fileduplicatesearch-noresults'>\n$1\n</p>",
array( 'fileduplicatesearch-noresults', wfEscapeWikiText( $this->filename ) )
);
}
if ( $this->hash != '' ) {
# Show a thumbnail of the file
$img = $this->file;
if ( $img ) {
$thumb = $img->transform( array( 'width' => 120, 'height' => 120 ) );
if ( $thumb ) {
$out->addHTML( '<div id="mw-fileduplicatesearch-icon">' .
$thumb->toHtml( array( 'desc-link' => false ) ) . '<br />' .
$this->msg( 'fileduplicatesearch-info' )->numParams(
$img->getWidth(), $img->getHeight() )->params(
$this->getLanguage()->formatSize( $img->getSize() ),
$img->getMimeType() )->parseAsBlock() .
'</div>' );
}
}
$dupes = $this->getDupes();
$numRows = count( $dupes );
# Show a short summary
if ( $numRows == 1 ) {
$out->wrapWikiMsg(
"<p class='mw-fileduplicatesearch-result-1'>\n$1\n</p>",
array( 'fileduplicatesearch-result-1', wfEscapeWikiText( $this->filename ) )
);
} elseif ( $numRows ) {
$out->wrapWikiMsg(
"<p class='mw-fileduplicatesearch-result-n'>\n$1\n</p>",
array( 'fileduplicatesearch-result-n', wfEscapeWikiText( $this->filename ),
$this->getLanguage()->formatNum( $numRows - 1 ) )
);
}
$this->doBatchLookups( $dupes );
$this->showList( $dupes );
}
}
function doBatchLookups( $list ) {
$batch = new LinkBatch();
/** @var File $file */
foreach ( $list as $file ) {
$batch->addObj( $file->getTitle() );
if ( $file->isLocal() ) {
$userName = $file->getUser( 'text' );
$batch->add( NS_USER, $userName );
$batch->add( NS_USER_TALK, $userName );
}
}
$batch->execute();
}
/**
*
* @param Skin $skin
* @param File $result
* @return string HTML
*/
function formatResult( $skin, $result ) {
global $wgContLang;
$nt = $result->getTitle();
$text = $wgContLang->convert( $nt->getText() );
$plink = Linker::link(
$nt,
htmlspecialchars( $text )
);
$userText = $result->getUser( 'text' );
if ( $result->isLocal() ) {
$userId = $result->getUser( 'id' );
$user = Linker::userLink( $userId, $userText );
$user .= '<span style="white-space: nowrap;">';
$user .= Linker::userToolLinks( $userId, $userText );
$user .= '</span>';
} else {
$user = htmlspecialchars( $userText );
}
$time = htmlspecialchars( $this->getLanguage()->userTimeAndDate(
$result->getTimestamp(), $this->getUser() ) );
return "$plink . . $user . . $time";
}
protected function getGroupName() {
return 'media';
}
}
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