* Add a link on the image description page to Special:FileDuplicateSearch/filename.ext
* Add updatelog table to reliably permit updates that don't change the schema
* Add category table to allow better tracking of category membership counts
** (bug 1212) Give correct membership counts on the pages of large categories
+* (bug 1459) Search for duplicate files by hash: Special:FileDuplicateSearch
=== Bug fixes in 1.13 ===
'FewestrevisionsPage' => 'includes/SpecialFewestrevisions.php',
'FileDeleteForm' => 'includes/FileDeleteForm.php',
'FileDependency' => 'includes/CacheDependency.php',
+ 'FileDuplicateSearch' => 'includes/SpecialFileDuplicateSearch.php',
'FileRevertForm' => 'includes/FileRevertForm.php',
'FileStore' => 'includes/FileStore.php',
'FormatExif' => 'includes/Exif.php',
$ulink = $sk->makeExternalLink( $this->getUploadUrl(), wfMsg( 'uploadnewversion-linktext' ) );
$wgOut->addHtml( "<li><div class='plainlinks'>{$ulink}</div></li>" );
}
-
+
+ # Link to Special:FileDuplicateSearch
+ $dupeLink = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'FileDuplicateSearch', $this->mTitle->getDBkey() ), wfMsgHtml( 'imagepage-searchdupe' ) );
+ $wgOut->addHtml( "<li>{$dupeLink}</li>" );
+
# External editing link
$elink = $sk->makeKnownLinkObj( $this->mTitle, wfMsgHtml( 'edit-externally' ), 'action=edit&externaledit=true&mode=file' );
$wgOut->addHtml( '<li>' . $elink . '<div>' . wfMsgWikiHtml( 'edit-externally-help' ) . '</div></li>' );
--- /dev/null
+<?php
+/**
+ * A special page to search for files by hash value as defined in the
+ * img_sha1 field in the image table
+ *
+ * @addtogroup SpecialPage
+ *
+ * @author Raimond Spekking, based on Special:MIMESearch by Ævar Arnfjörð Bjarmason
+ * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
+ */
+
+/**
+ * Searches the database for files of the requested hash, comparing this with the
+ * 'img_sha1' field in the image table.
+ */
+class FileDuplicateSearchPage extends QueryPage {
+ var $hash, $filename;
+
+ function FileDuplicateSearchPage( $hash, $filename ) {
+ $this->hash = $hash;
+ $this->filename = $filename;
+ }
+
+ function getName() { return 'FileDuplicateSearch'; }
+ function isExpensive() { return false; }
+ function isSyndicated() { return false; }
+
+ function linkParameters() {
+ return array( 'filename' => $this->filename );
+ }
+
+ function getSQL() {
+ $dbr = wfGetDB( DB_SLAVE );
+ $image = $dbr->tableName( 'image' );
+ $hash = $dbr->addQuotes( $this->hash );
+
+ return "SELECT 'FileDuplicateSearch' AS type,
+ img_name AS title,
+ img_sha1 AS value,
+ img_user_text,
+ img_timestamp
+ FROM $image
+ WHERE img_sha1 = $hash
+ ";
+ }
+
+ function formatResult( $skin, $result ) {
+ global $wgContLang, $wgLang;
+
+ $nt = Title::makeTitle( NS_IMAGE, $result->title );
+ $text = $wgContLang->convert( $nt->getText() );
+ $plink = $skin->makeLink( $nt->getPrefixedText(), $text );
+
+ $user = $skin->makeLinkObj( Title::makeTitle( NS_USER, $result->img_user_text ), $result->img_user_text );
+ $time = $wgLang->timeanddate( $result->img_timestamp );
+
+ return "$plink . . $user . . $time";
+ }
+}
+
+/**
+ * Output the HTML search form, and constructs the FileDuplicateSearch object.
+ */
+function wfSpecialFileDuplicateSearch( $par = null ) {
+ global $wgRequest, $wgTitle, $wgOut, $wgLang, $wgContLang;
+
+ $hash = '';
+ $filename = isset( $par ) ? $par : $wgRequest->getText( 'filename' );
+
+ $title = Title::newFromText( $filename );
+ if( $title && $title->getText() != '' ) {
+ $dbr = wfGetDB( DB_SLAVE );
+ $image = $dbr->tableName( 'image' );
+ $encFilename = $dbr->addQuotes( htmlspecialchars( $title->getDbKey() ) );
+ $sql = "SELECT img_sha1 from $image where img_name = $encFilename";
+ $res = $dbr->query( $sql );
+ $row = $dbr->fetchRow( $res );
+ if( $row !== false ) {
+ $hash = $row[0];
+ }
+ $dbr->freeResult( $res );
+ }
+
+ # Create the input form
+ $wgOut->addHTML(
+ Xml::openElement( 'form', array( 'id' => 'fileduplicatesearch', 'method' => 'get', 'action' => $wgTitle->getLocalUrl() ) ) .
+ Xml::openElement( 'fieldset' ) .
+ Xml::element( 'legend', null, wfMsg( 'fileduplicatesearch-legend' ) ) .
+ Xml::inputLabel( wfMsg( 'fileduplicatesearch-filename' ), 'filename', 'filename', 50, $filename ) . ' ' .
+ Xml::submitButton( wfMsg( 'fileduplicatesearch-submit' ) ) .
+ Xml::closeElement( 'fieldset' ) .
+ Xml::closeElement( 'form' )
+ );
+
+ if( $hash != '' ) {
+ $align = $wgContLang->isRtl() ? 'left' : 'right';
+
+ # Show a thumbnail of the file
+ $img = wfFindFile( $title );
+ if ( $img ) {
+ $thumb = $img->getThumbnail( 120, 120 );
+ if( $thumb ) {
+ $wgOut->addHTML( '<div style="float:' . $align . '" id="mw-fileduplicatesearch-icon">' .
+ $thumb->toHtml( array( 'desc-link' => false ) ) . '<br />' .
+ wfMsgExt( 'fileduplicatesearch-info', array( 'parse' ),
+ $wgLang->formatNum( $img->getWidth() ),
+ $wgLang->formatNum( $img->getHeight() ),
+ $wgLang->formatSize( $img->getSize() ),
+ $img->getMimeType()
+ ) .
+ '</div>' );
+ }
+ }
+
+ # Do the query
+ $wpp = new FileDuplicateSearchPage( $hash, $filename );
+ list( $limit, $offset ) = wfCheckLimits();
+ $count = $wpp->doQuery( $offset, $limit );
+
+ # Show a short summary
+ if( $count == 1 ) {
+ $wgOut->addHTML( '<p class="mw-fileduplicatesearch-result-1">' .
+ wfMsgHtml( 'fileduplicatesearch-result-1', $filename ) .
+ '</p>'
+ );
+ } elseif ( $count > 1 ) {
+ $wgOut->addHTML( '<p class="mw-fileduplicatesearch-result-n">' .
+ wfMsgExt( 'fileduplicatesearch-result-n', array( 'parseinline' ), $filename, $wgLang->formatNum( $count - 1 ) ) .
+ '</p>'
+ );
+ }
+ }
+}
'Unlockdb' => array( 'SpecialPage', 'Unlockdb', 'siteadmin' ),
'Userrights' => 'UserrightsPage',
'MIMEsearch' => array( 'SpecialPage', 'MIMEsearch' ),
+ 'FileDuplicateSearch' => array( 'SpecialPage', 'FileDuplicateSearch' ),
'Unwatchedpages' => array( 'SpecialPage', 'Unwatchedpages', 'unwatchedpages' ),
'Listredirects' => array( 'SpecialPage', 'Listredirects' ),
'Revisiondelete' => array( 'UnlistedSpecialPage', 'Revisiondelete', 'deleterevision' ),
'Unlockdb' => array( 'UnlockDB' ),
'Userrights' => array( 'UserRights' ),
'MIMEsearch' => array( 'MIMESearch' ),
+ 'FileDuplicateSearch' => array( 'FileDuplicateSearch' ),
'Unwatchedpages' => array( 'UnwatchedPages' ),
'Listredirects' => array( 'ListRedirects' ),
'Revisiondelete' => array( 'RevisionDelete' ),
'noimage' => 'No file by this name exists, you can $1.',
'noimage-linktext' => 'upload it',
'uploadnewversion-linktext' => 'Upload a new version of this file',
+'imagepage-searchdupe' => 'Search for duplicate files',
# File reversion
'filerevert' => 'Revert $1',
Enter the file name without the "{{ns:image}}:" prefix.',
+# Special:FileDuplicateSearch
+'fileduplicatesearch' => 'Search for duplicate files',
+'fileduplicatesearch-summary' => 'Search for duplicate files on base of its hash value.
+
+Enter the filename without the "{{ns:image}}:" prefix.',
+'fileduplicatesearch-legend' => 'Search for a duplicate',
+'fileduplicatesearch-filename' => 'Filename:',
+'fileduplicatesearch-submit' => 'Search',
+'fileduplicatesearch-info' => '$1 × $2 pixel<br />File size: $3<br />MIME type: $4',
+'fileduplicatesearch-result-1' => 'The file "$1" has no identical duplication.',
+'fileduplicatesearch-result-n' => 'The file "$1" has {{PLURAL:$2|1 identical duplication|$2 identical duplications}}.',
+
);
'noimage',
'noimage-linktext',
'uploadnewversion-linktext',
+ 'imagepage-searchdupe',
),
'filerevert' => array(
'filerevert',
'filepath-submit',
'filepath-summary',
),
+ 'fileduplicatesearch' => array(
+ 'fileduplicatesearch',
+ 'fileduplicatesearch-summary',
+ 'fileduplicatesearch-legend',
+ 'fileduplicatesearch-filename',
+ 'fileduplicatesearch-submit',
+ 'fileduplicatesearch-info',
+ 'fileduplicatesearch-result-1',
+ 'fileduplicatesearch-result-n',
+ ),
);
+
/** Comments for each block */
$wgBlockComments = array(
'sidebar' => "The sidebar for MonoBook is generated from this message, lines that do not
'CoreParserFunctions' => 'Core parser functions',
'version' => 'Special:Version',
'filepath' => 'Special:Filepath',
+ 'fileduplicate' => 'Special:FileDuplicateSearch',
);
/** Short comments for standalone messages */