256 lines
7.3 KiB
PHP
256 lines
7.3 KiB
PHP
<?php
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/**
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* File deletion user interface
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*
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* @addtogroup Media
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* @author Rob Church <robchur@gmail.com>
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*/
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class FileDeleteForm {
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private $title = null;
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private $file = null;
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private $oldfile = null;
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private $oldimage = '';
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/**
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* Constructor
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*
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* @param File $file File we're deleting
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*/
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public function __construct( $file ) {
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$this->title = $file->getTitle();
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$this->file = $file;
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}
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/**
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* Fulfil the request; shows the form or deletes the file,
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* pending authentication, confirmation, etc.
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*/
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public function execute() {
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global $wgOut, $wgRequest, $wgUser;
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$this->setHeaders();
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if( wfReadOnly() ) {
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$wgOut->readOnlyPage();
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return;
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} elseif( !$wgUser->isLoggedIn() ) {
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$wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
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return;
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} elseif( !$wgUser->isAllowed( 'delete' ) ) {
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$wgOut->permissionRequired( 'delete' );
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return;
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} elseif( $wgUser->isBlocked() ) {
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$wgOut->blockedPage();
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return;
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}
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$this->oldimage = $wgRequest->getText( 'oldimage', false );
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$token = $wgRequest->getText( 'wpEditToken' );
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if( $this->oldimage && !$this->isValidOldSpec() ) {
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$wgOut->showUnexpectedValueError( 'oldimage', htmlspecialchars( $this->oldimage ) );
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return;
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}
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if( $this->oldimage )
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$this->oldfile = RepoGroup::singleton()->getLocalRepo()->newFromArchiveName( $this->title, $this->oldimage );
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if( !$this->haveDeletableFile() ) {
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$wgOut->addHtml( $this->prepareMessage( 'filedelete-nofile' ) );
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$wgOut->addReturnTo( $this->title );
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return;
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}
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// Perform the deletion if appropriate
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if( $wgRequest->wasPosted() && $wgUser->matchEditToken( $token, $this->oldimage ) ) {
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$this->DeleteReasonList = $wgRequest->getText( 'wpDeleteReasonList' );
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$this->DeleteReason = $wgRequest->getText( 'wpReason' );
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$reason = $this->DeleteReasonList;
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if ( $reason != 'other' && $this->DeleteReason != '') {
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// Entry from drop down menu + additional comment
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$reason .= ': ' . $this->DeleteReason;
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} elseif ( $reason == 'other' ) {
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$reason = $this->DeleteReason;
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}
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if( $this->oldimage ) {
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$status = $this->file->deleteOld( $this->oldimage, $reason );
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if( $status->ok ) {
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// Need to do a log item
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$log = new LogPage( 'delete' );
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$logComment = wfMsgForContent( 'deletedrevision', $this->oldimage );
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if( trim( $reason ) != '' )
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$logComment .= ": {$reason}";
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$log->addEntry( 'delete', $this->title, $logComment );
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}
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} else {
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$status = $this->file->delete( $reason );
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if( $status->ok ) {
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// Need to delete the associated article
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$article = new Article( $this->title );
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$article->doDeleteArticle( $reason );
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}
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}
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if( !$status->isGood() )
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$wgOut->addWikiText( $status->getWikiText( 'filedeleteerror-short', 'filedeleteerror-long' ) );
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if( $status->ok ) {
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$wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
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$wgOut->addHtml( $this->prepareMessage( 'filedelete-success' ) );
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// Return to the main page if we just deleted all versions of the
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// file, otherwise go back to the description page
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$wgOut->addReturnTo( $this->oldimage ? $this->title : Title::newMainPage() );
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}
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return;
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}
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$this->showForm();
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$this->showLogEntries();
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}
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/**
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* Show the confirmation form
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*/
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private function showForm() {
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global $wgOut, $wgUser, $wgRequest, $wgContLang;
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$align = $wgContLang->isRtl() ? 'left' : 'right';
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$form = Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getAction() ) ) .
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Xml::openElement( 'fieldset' ) .
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Xml::element( 'legend', null, wfMsg( 'filedelete-legend' ) ) .
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Xml::hidden( 'wpEditToken', $wgUser->editToken( $this->oldimage ) ) .
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$this->prepareMessage( 'filedelete-intro' ) .
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Xml::openElement( 'table' ) .
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"<tr>
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<td align='$align'>" .
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Xml::label( wfMsg( 'filedelete-comment' ), 'wpDeleteReasonList' ) .
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"</td>
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<td>" .
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Xml::listDropDown( 'wpDeleteReasonList',
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wfMsgForContent( 'filedelete-reason-dropdown' ),
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wfMsgForContent( 'filedelete-reason-otherlist' ), '', 'wpReasonDropDown', 1 ) .
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"</td>
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</tr>
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<tr>
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<td align='$align'>" .
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Xml::label( wfMsg( 'filedelete-otherreason' ), 'wpReason' ) .
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"</td>
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<td>" .
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Xml::input( 'wpReason', 60, $wgRequest->getText( 'wpReason' ), array( 'type' => 'text', 'maxlength' => '255', 'tabindex' => '2', 'id' => 'wpReason' ) ) .
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"</td>
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</tr>
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<tr>
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<td></td>
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<td>" .
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Xml::submitButton( wfMsg( 'filedelete-submit' ), array( 'name' => 'mw-filedelete-submit', 'id' => 'mw-filedelete-submit', 'tabindex' => '3' ) ) .
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"</td>
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</tr>" .
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Xml::closeElement( 'table' ) .
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Xml::closeElement( 'fieldset' ) .
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Xml::closeElement( 'form' );
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$wgOut->addHtml( $form );
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}
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/**
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* Show deletion log fragments pertaining to the current file
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*/
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private function showLogEntries() {
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global $wgOut;
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$wgOut->addHtml( '<h2>' . htmlspecialchars( LogPage::logName( 'delete' ) ) . "</h2>\n" );
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$reader = new LogViewer(
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new LogReader(
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new FauxRequest(
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array(
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'type' => 'delete',
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'page' => $this->title->getPrefixedText(),
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)
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)
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)
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);
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$reader->showList( $wgOut );
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}
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/**
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* Prepare a message referring to the file being deleted,
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* showing an appropriate message depending upon whether
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* it's a current file or an old version
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*
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* @param string $message Message base
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* @return string
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*/
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private function prepareMessage( $message ) {
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global $wgLang, $wgServer;
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if( $this->oldimage ) {
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return wfMsgExt(
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"{$message}-old", # To ensure grep will find them: 'filedelete-intro-old', 'filedelete-nofile-old', 'filedelete-success-old'
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'parse',
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$this->title->getText(),
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$wgLang->date( $this->getTimestamp(), true ),
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$wgLang->time( $this->getTimestamp(), true ),
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$wgServer . $this->file->getArchiveUrl( $this->oldimage )
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);
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} else {
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return wfMsgExt(
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$message,
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'parse',
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$this->title->getText()
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);
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}
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}
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/**
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* Set headers, titles and other bits
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*/
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private function setHeaders() {
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global $wgOut, $wgUser;
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$wgOut->setPageTitle( wfMsg( 'filedelete', $this->title->getText() ) );
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$wgOut->setRobotPolicy( 'noindex,nofollow' );
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$wgOut->setSubtitle( wfMsg( 'filedelete-backlink', $wgUser->getSkin()->makeKnownLinkObj( $this->title ) ) );
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}
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/**
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* Is the provided `oldimage` value valid?
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*
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* @return bool
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*/
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private function isValidOldSpec() {
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return strlen( $this->oldimage ) >= 16
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&& strpos( $this->oldimage, '/' ) === false
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&& strpos( $this->oldimage, '\\' ) === false;
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}
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/**
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* Could we delete the file specified? If an `oldimage`
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* value was provided, does it correspond to an
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* existing, local, old version of this file?
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*
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* @return bool
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*/
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private function haveDeletableFile() {
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return $this->oldimage
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? $this->oldfile && $this->oldfile->exists() && $this->oldfile->isLocal()
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: $this->file && $this->file->exists() && $this->file->isLocal();
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}
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/**
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* Prepare the form action
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*
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* @return string
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*/
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private function getAction() {
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$q = array();
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$q[] = 'action=delete';
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if( $this->oldimage )
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$q[] = 'oldimage=' . urlencode( $this->oldimage );
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return $this->title->getLocalUrl( implode( '&', $q ) );
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}
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/**
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* Extract the timestamp of the old version
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*
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* @return string
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*/
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private function getTimestamp() {
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return $this->oldfile->getTimestamp();
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}
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}
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