353 lines
10 KiB
PHP
353 lines
10 KiB
PHP
<?php
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/**
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* File deletion user interface
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*
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* @ingroup 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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/**
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* @var Title
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*/
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private $title = null;
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/**
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* @var File
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*/
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private $file = null;
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/**
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* @var File
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*/
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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 object 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, $wgUploadMaintenance;
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$permissionErrors = $this->title->getUserPermissionsErrors( 'delete', $wgUser );
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if ( count( $permissionErrors ) ) {
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throw new PermissionsError( 'delete', $permissionErrors );
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}
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if ( wfReadOnly() ) {
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throw new ReadOnlyError;
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}
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if ( $wgUploadMaintenance ) {
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throw new ErrorPageError( 'filedelete-maintenance-title', 'filedelete-maintenance' );
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}
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$this->setHeaders();
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$this->oldimage = $wgRequest->getText( 'oldimage', false );
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$token = $wgRequest->getText( 'wpEditToken' );
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# Flag to hide all contents of the archived revisions
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$suppress = $wgRequest->getVal( 'wpSuppress' ) && $wgUser->isAllowed('suppressrevision');
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if( $this->oldimage ) {
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$this->oldfile = RepoGroup::singleton()->getLocalRepo()->newFromArchiveName( $this->title, $this->oldimage );
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}
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if( !self::haveDeletableFile($this->file, $this->oldfile, $this->oldimage) ) {
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$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, $this->oldimage ) ) {
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$deleteReasonList = $wgRequest->getText( 'wpDeleteReasonList' );
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$deleteReason = $wgRequest->getText( 'wpReason' );
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if ( $deleteReasonList == 'other' ) {
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$reason = $deleteReason;
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} elseif ( $deleteReason != '' ) {
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// Entry from drop down menu + additional comment
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$reason = $deleteReasonList . wfMsgForContent( 'colon-separator' ) . $deleteReason;
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} else {
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$reason = $deleteReasonList;
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}
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$status = self::doDelete( $this->title, $this->file, $this->oldimage, $reason, $suppress, $wgUser );
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if( !$status->isGood() ) {
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$wgOut->addHTML( '<h2>' . $this->prepareMessage( 'filedeleteerror-short' ) . "</h2>\n" );
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$wgOut->addHTML( '<span class="error">' );
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$wgOut->addWikiText( $status->getWikiText( 'filedeleteerror-short', 'filedeleteerror-long' ) );
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$wgOut->addHTML( '</span>' );
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}
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if( $status->ok ) {
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$wgOut->setPageTitle( wfMessage( '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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if ( $wgRequest->getCheck( 'wpWatch' ) && $wgUser->isLoggedIn() ) {
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WatchAction::doWatch( $this->title, $wgUser );
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} elseif ( $this->title->userIsWatching() ) {
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WatchAction::doUnwatch( $this->title, $wgUser );
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}
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}
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return;
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}
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$this->showForm();
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$this->showLogEntries();
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}
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/**
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* Really delete the file
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*
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* @param $title Title object
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* @param File $file: file object
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* @param $oldimage String: archive name
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* @param $reason String: reason of the deletion
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* @param $suppress Boolean: whether to mark all deleted versions as restricted
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* @param $user User object performing the request
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*/
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public static function doDelete( &$title, &$file, &$oldimage, $reason, $suppress, User $user = null ) {
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if ( $user === null ) {
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global $wgUser;
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$user = $wgUser;
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}
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if( $oldimage ) {
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$page = null;
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$status = $file->deleteOld( $oldimage, $reason, $suppress );
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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', $oldimage );
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if( trim( $reason ) != '' ) {
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$logComment .= wfMsgForContent( 'colon-separator' ) . $reason;
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}
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$log->addEntry( 'delete', $title, $logComment );
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}
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} else {
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$status = Status::newFatal( 'cannotdelete',
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wfEscapeWikiText( $title->getPrefixedText() )
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);
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$page = WikiPage::factory( $title );
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$dbw = wfGetDB( DB_MASTER );
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try {
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// delete the associated article first
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$error = '';
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if ( $page->doDeleteArticleReal( $reason, $suppress, 0, false, $error, $user ) >= Page::DELETE_SUCCESS ) {
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$status = $file->delete( $reason, $suppress );
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if( $status->isOK() ) {
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$dbw->commit();
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} else {
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$dbw->rollback();
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}
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}
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} catch ( MWException $e ) {
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// rollback before returning to prevent UI from displaying incorrect "View or restore N deleted edits?"
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$dbw->rollback();
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throw $e;
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}
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}
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if ( $status->isOK() ) {
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wfRunHooks( 'FileDeleteComplete', array( &$file, &$oldimage, &$page, &$user, &$reason ) );
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}
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return $status;
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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;
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if( $wgUser->isAllowed( 'suppressrevision' ) ) {
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$suppress = "<tr id=\"wpDeleteSuppressRow\">
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<td></td>
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<td class='mw-input'><strong>" .
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Xml::checkLabel( wfMsg( 'revdelete-suppress' ),
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'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '3' ) ) .
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"</strong></td>
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</tr>";
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} else {
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$suppress = '';
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}
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$checkWatch = $wgUser->getBoolOption( 'watchdeletion' ) || $this->title->userIsWatching();
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$form = Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getAction(),
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'id' => 'mw-img-deleteconfirm' ) ) .
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Xml::openElement( 'fieldset' ) .
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Xml::element( 'legend', null, wfMsg( 'filedelete-legend' ) ) .
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Html::hidden( 'wpEditToken', $wgUser->getEditToken( $this->oldimage ) ) .
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$this->prepareMessage( 'filedelete-intro' ) .
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Xml::openElement( 'table', array( 'id' => 'mw-img-deleteconfirm-table' ) ) .
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"<tr>
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<td class='mw-label'>" .
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Xml::label( wfMsg( 'filedelete-comment' ), 'wpDeleteReasonList' ) .
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"</td>
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<td class='mw-input'>" .
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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 class='mw-label'>" .
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Xml::label( wfMsg( 'filedelete-otherreason' ), 'wpReason' ) .
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"</td>
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<td class='mw-input'>" .
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Xml::input( 'wpReason', 60, $wgRequest->getText( 'wpReason' ),
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array( 'type' => 'text', 'maxlength' => '255', 'tabindex' => '2', 'id' => 'wpReason' ) ) .
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"</td>
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</tr>
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{$suppress}";
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if( $wgUser->isLoggedIn() ) {
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$form .= "
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<tr>
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<td></td>
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<td class='mw-input'>" .
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Xml::checkLabel( wfMsg( 'watchthis' ),
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'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) ) .
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"</td>
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</tr>";
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}
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$form .= "
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<tr>
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<td></td>
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<td class='mw-submit'>" .
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Xml::submitButton( wfMsg( 'filedelete-submit' ),
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array( 'name' => 'mw-filedelete-submit', 'id' => 'mw-filedelete-submit', 'tabindex' => '4' ) ) .
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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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if ( $wgUser->isAllowed( 'editinterface' ) ) {
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$title = Title::makeTitle( NS_MEDIAWIKI, 'Filedelete-reason-dropdown' );
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$link = Linker::link(
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$title,
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wfMsgHtml( 'filedelete-edit-reasonlist' ),
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array(),
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array( 'action' => 'edit' )
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);
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$form .= '<p class="mw-filedelete-editreasons">' . $link . '</p>';
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}
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$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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LogEventsList::showLogExtract( $wgOut, 'delete', $this->title );
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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 $message String: 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;
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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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wfEscapeWikiText( $this->title->getText() ),
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$wgLang->date( $this->getTimestamp(), true ),
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$wgLang->time( $this->getTimestamp(), true ),
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wfExpandUrl( $this->file->getArchiveUrl( $this->oldimage ), PROTO_CURRENT ) );
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} else {
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return wfMsgExt(
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$message,
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'parse',
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wfEscapeWikiText( $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 $wgOut;
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$wgOut->setPageTitle( wfMessage( 'filedelete', $this->title->getText() ) );
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$wgOut->setRobotPolicy( 'noindex,nofollow' );
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$wgOut->addBacklinkSubtitle( $this->title );
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}
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/**
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* Is the provided `oldimage` value valid?
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*
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* @return bool
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*/
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public static function isValidOldSpec($oldimage) {
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return strlen( $oldimage ) >= 16
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&& strpos( $oldimage, '/' ) === false
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&& strpos( $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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* @param $file File
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* @param $oldfile File
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* @param $oldimage File
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* @return bool
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*/
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public static function haveDeletableFile(&$file, &$oldfile, $oldimage) {
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return $oldimage
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? $oldfile && $oldfile->exists() && $oldfile->isLocal()
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: $file && $file->exists() && $file->isLocal();
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}
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/**
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* Prepare the form action
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*
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* @return string
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*/
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private function getAction() {
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$q = array();
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$q['action'] = 'delete';
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if( $this->oldimage )
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$q['oldimage'] = $this->oldimage;
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return $this->title->getLocalUrl( $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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