wiki.techinc.nl/includes/FileDeleteForm.php
Thiemo Mättig 91a920fd85 Remove auto-generated "Constructor" documentation on constructors
Having such comments is worse than not having them. They add zero
information. But you must read the text to understand there is
nothing you don't already know from the class and the method name.

This is similar to I994d11e. Even more trivial, because this here is
about comments that don't say anything but "constructor".

Change-Id: I474dcdb5997bea3aafd11c0760ee072dfaff124c
2017-07-21 12:19:30 +02:00

436 lines
12 KiB
PHP

<?php
/**
* File deletion user interface.
*
* 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
* @author Rob Church <robchur@gmail.com>
* @ingroup Media
*/
use MediaWiki\MediaWikiServices;
/**
* File deletion user interface
*
* @ingroup Media
*/
class FileDeleteForm {
/**
* @var Title
*/
private $title = null;
/**
* @var File
*/
private $file = null;
/**
* @var File
*/
private $oldfile = null;
private $oldimage = '';
/**
* @param File $file File object we're deleting
*/
public function __construct( $file ) {
$this->title = $file->getTitle();
$this->file = $file;
}
/**
* Fulfil the request; shows the form or deletes the file,
* pending authentication, confirmation, etc.
*/
public function execute() {
global $wgOut, $wgRequest, $wgUser, $wgUploadMaintenance;
$permissionErrors = $this->title->getUserPermissionsErrors( 'delete', $wgUser );
if ( count( $permissionErrors ) ) {
throw new PermissionsError( 'delete', $permissionErrors );
}
if ( wfReadOnly() ) {
throw new ReadOnlyError;
}
if ( $wgUploadMaintenance ) {
throw new ErrorPageError( 'filedelete-maintenance-title', 'filedelete-maintenance' );
}
$this->setHeaders();
$this->oldimage = $wgRequest->getText( 'oldimage', false );
$token = $wgRequest->getText( 'wpEditToken' );
# Flag to hide all contents of the archived revisions
$suppress = $wgRequest->getVal( 'wpSuppress' ) && $wgUser->isAllowed( 'suppressrevision' );
if ( $this->oldimage ) {
$this->oldfile = RepoGroup::singleton()->getLocalRepo()->newFromArchiveName(
$this->title,
$this->oldimage
);
}
if ( !self::haveDeletableFile( $this->file, $this->oldfile, $this->oldimage ) ) {
$wgOut->addHTML( $this->prepareMessage( 'filedelete-nofile' ) );
$wgOut->addReturnTo( $this->title );
return;
}
// Perform the deletion if appropriate
if ( $wgRequest->wasPosted() && $wgUser->matchEditToken( $token, $this->oldimage ) ) {
$deleteReasonList = $wgRequest->getText( 'wpDeleteReasonList' );
$deleteReason = $wgRequest->getText( 'wpReason' );
if ( $deleteReasonList == 'other' ) {
$reason = $deleteReason;
} elseif ( $deleteReason != '' ) {
// Entry from drop down menu + additional comment
$reason = $deleteReasonList . wfMessage( 'colon-separator' )
->inContentLanguage()->text() . $deleteReason;
} else {
$reason = $deleteReasonList;
}
$status = self::doDelete(
$this->title,
$this->file,
$this->oldimage,
$reason,
$suppress,
$wgUser
);
if ( !$status->isGood() ) {
$wgOut->addHTML( '<h2>' . $this->prepareMessage( 'filedeleteerror-short' ) . "</h2>\n" );
$wgOut->addWikiText( '<div class="error">' .
$status->getWikiText( 'filedeleteerror-short', 'filedeleteerror-long' )
. '</div>' );
}
if ( $status->isOK() ) {
$wgOut->setPageTitle( wfMessage( 'actioncomplete' ) );
$wgOut->addHTML( $this->prepareMessage( 'filedelete-success' ) );
// Return to the main page if we just deleted all versions of the
// file, otherwise go back to the description page
$wgOut->addReturnTo( $this->oldimage ? $this->title : Title::newMainPage() );
WatchAction::doWatchOrUnwatch( $wgRequest->getCheck( 'wpWatch' ), $this->title, $wgUser );
}
return;
}
$this->showForm();
$this->showLogEntries();
}
/**
* Really delete the file
*
* @param Title $title
* @param File $file
* @param string $oldimage Archive name
* @param string $reason Reason of the deletion
* @param bool $suppress Whether to mark all deleted versions as restricted
* @param User $user User object performing the request
* @param array $tags Tags to apply to the deletion action
* @throws MWException
* @return Status
*/
public static function doDelete( &$title, &$file, &$oldimage, $reason,
$suppress, User $user = null, $tags = []
) {
if ( $user === null ) {
global $wgUser;
$user = $wgUser;
}
if ( $oldimage ) {
$page = null;
$status = $file->deleteOld( $oldimage, $reason, $suppress, $user );
if ( $status->ok ) {
// Need to do a log item
$logComment = wfMessage( 'deletedrevision', $oldimage )->inContentLanguage()->text();
if ( trim( $reason ) != '' ) {
$logComment .= wfMessage( 'colon-separator' )
->inContentLanguage()->text() . $reason;
}
$logtype = $suppress ? 'suppress' : 'delete';
$logEntry = new ManualLogEntry( $logtype, 'delete' );
$logEntry->setPerformer( $user );
$logEntry->setTarget( $title );
$logEntry->setComment( $logComment );
$logEntry->setTags( $tags );
$logid = $logEntry->insert();
$logEntry->publish( $logid );
$status->value = $logid;
}
} else {
$status = Status::newFatal( 'cannotdelete',
wfEscapeWikiText( $title->getPrefixedText() )
);
$page = WikiPage::factory( $title );
$dbw = wfGetDB( DB_MASTER );
$dbw->startAtomic( __METHOD__ );
// delete the associated article first
$error = '';
$deleteStatus = $page->doDeleteArticleReal( $reason, $suppress, 0, false, $error,
$user, $tags );
// doDeleteArticleReal() returns a non-fatal error status if the page
// or revision is missing, so check for isOK() rather than isGood()
if ( $deleteStatus->isOK() ) {
$status = $file->delete( $reason, $suppress, $user );
if ( $status->isOK() ) {
if ( $deleteStatus->value === null ) {
// No log ID from doDeleteArticleReal(), probably
// because the page/revision didn't exist, so create
// one here.
$logtype = $suppress ? 'suppress' : 'delete';
$logEntry = new ManualLogEntry( $logtype, 'delete' );
$logEntry->setPerformer( $user );
$logEntry->setTarget( clone $title );
$logEntry->setComment( $reason );
$logEntry->setTags( $tags );
$logid = $logEntry->insert();
$dbw->onTransactionPreCommitOrIdle(
function () use ( $dbw, $logEntry, $logid ) {
$logEntry->publish( $logid );
},
__METHOD__
);
$status->value = $logid;
} else {
$status->value = $deleteStatus->value; // log id
}
$dbw->endAtomic( __METHOD__ );
} else {
// Page deleted but file still there? rollback page delete
$lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
$lbFactory->rollbackMasterChanges( __METHOD__ );
}
} else {
// Done; nothing changed
$dbw->endAtomic( __METHOD__ );
}
}
if ( $status->isOK() ) {
Hooks::run( 'FileDeleteComplete', [ &$file, &$oldimage, &$page, &$user, &$reason ] );
}
return $status;
}
/**
* Show the confirmation form
*/
private function showForm() {
global $wgOut, $wgUser, $wgRequest;
if ( $wgUser->isAllowed( 'suppressrevision' ) ) {
$suppress = "<tr id=\"wpDeleteSuppressRow\">
<td></td>
<td class='mw-input'><strong>" .
Xml::checkLabel( wfMessage( 'revdelete-suppress' )->text(),
'wpSuppress', 'wpSuppress', false, [ 'tabindex' => '3' ] ) .
"</strong></td>
</tr>";
} else {
$suppress = '';
}
$checkWatch = $wgUser->getBoolOption( 'watchdeletion' ) || $wgUser->isWatched( $this->title );
$form = Xml::openElement( 'form', [ 'method' => 'post', 'action' => $this->getAction(),
'id' => 'mw-img-deleteconfirm' ] ) .
Xml::openElement( 'fieldset' ) .
Xml::element( 'legend', null, wfMessage( 'filedelete-legend' )->text() ) .
Html::hidden( 'wpEditToken', $wgUser->getEditToken( $this->oldimage ) ) .
$this->prepareMessage( 'filedelete-intro' ) .
Xml::openElement( 'table', [ 'id' => 'mw-img-deleteconfirm-table' ] ) .
"<tr>
<td class='mw-label'>" .
Xml::label( wfMessage( 'filedelete-comment' )->text(), 'wpDeleteReasonList' ) .
"</td>
<td class='mw-input'>" .
Xml::listDropDown(
'wpDeleteReasonList',
wfMessage( 'filedelete-reason-dropdown' )->inContentLanguage()->text(),
wfMessage( 'filedelete-reason-otherlist' )->inContentLanguage()->text(),
'',
'wpReasonDropDown',
1
) .
"</td>
</tr>
<tr>
<td class='mw-label'>" .
Xml::label( wfMessage( 'filedelete-otherreason' )->text(), 'wpReason' ) .
"</td>
<td class='mw-input'>" .
Xml::input( 'wpReason', 60, $wgRequest->getText( 'wpReason' ),
[ 'type' => 'text', 'maxlength' => '255', 'tabindex' => '2', 'id' => 'wpReason' ] ) .
"</td>
</tr>
{$suppress}";
if ( $wgUser->isLoggedIn() ) {
$form .= "
<tr>
<td></td>
<td class='mw-input'>" .
Xml::checkLabel( wfMessage( 'watchthis' )->text(),
'wpWatch', 'wpWatch', $checkWatch, [ 'tabindex' => '3' ] ) .
"</td>
</tr>";
}
$form .= "
<tr>
<td></td>
<td class='mw-submit'>" .
Xml::submitButton(
wfMessage( 'filedelete-submit' )->text(),
[
'name' => 'mw-filedelete-submit',
'id' => 'mw-filedelete-submit',
'tabindex' => '4'
]
) .
"</td>
</tr>" .
Xml::closeElement( 'table' ) .
Xml::closeElement( 'fieldset' ) .
Xml::closeElement( 'form' );
if ( $wgUser->isAllowed( 'editinterface' ) ) {
$title = wfMessage( 'filedelete-reason-dropdown' )->inContentLanguage()->getTitle();
$linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
$link = $linkRenderer->makeKnownLink(
$title,
wfMessage( 'filedelete-edit-reasonlist' )->text(),
[],
[ 'action' => 'edit' ]
);
$form .= '<p class="mw-filedelete-editreasons">' . $link . '</p>';
}
$wgOut->addHTML( $form );
}
/**
* Show deletion log fragments pertaining to the current file
*/
private function showLogEntries() {
global $wgOut;
$deleteLogPage = new LogPage( 'delete' );
$wgOut->addHTML( '<h2>' . $deleteLogPage->getName()->escaped() . "</h2>\n" );
LogEventsList::showLogExtract( $wgOut, 'delete', $this->title );
}
/**
* Prepare a message referring to the file being deleted,
* showing an appropriate message depending upon whether
* it's a current file or an old version
*
* @param string $message Message base
* @return string
*/
private function prepareMessage( $message ) {
global $wgLang;
if ( $this->oldimage ) {
# Message keys used:
# 'filedelete-intro-old', 'filedelete-nofile-old', 'filedelete-success-old'
return wfMessage(
"{$message}-old",
wfEscapeWikiText( $this->title->getText() ),
$wgLang->date( $this->getTimestamp(), true ),
$wgLang->time( $this->getTimestamp(), true ),
wfExpandUrl( $this->file->getArchiveUrl( $this->oldimage ), PROTO_CURRENT ) )->parseAsBlock();
} else {
return wfMessage(
$message,
wfEscapeWikiText( $this->title->getText() )
)->parseAsBlock();
}
}
/**
* Set headers, titles and other bits
*/
private function setHeaders() {
global $wgOut;
$wgOut->setPageTitle( wfMessage( 'filedelete', $this->title->getText() ) );
$wgOut->setRobotPolicy( 'noindex,nofollow' );
$wgOut->addBacklinkSubtitle( $this->title );
}
/**
* Is the provided `oldimage` value valid?
*
* @param string $oldimage
* @return bool
*/
public static function isValidOldSpec( $oldimage ) {
return strlen( $oldimage ) >= 16
&& strpos( $oldimage, '/' ) === false
&& strpos( $oldimage, '\\' ) === false;
}
/**
* Could we delete the file specified? If an `oldimage`
* value was provided, does it correspond to an
* existing, local, old version of this file?
*
* @param File $file
* @param File $oldfile
* @param File $oldimage
* @return bool
*/
public static function haveDeletableFile( &$file, &$oldfile, $oldimage ) {
return $oldimage
? $oldfile && $oldfile->exists() && $oldfile->isLocal()
: $file && $file->exists() && $file->isLocal();
}
/**
* Prepare the form action
*
* @return string
*/
private function getAction() {
$q = [];
$q['action'] = 'delete';
if ( $this->oldimage ) {
$q['oldimage'] = $this->oldimage;
}
return $this->title->getLocalURL( $q );
}
/**
* Extract the timestamp of the old version
*
* @return string
*/
private function getTimestamp() {
return $this->oldfile->getTimestamp();
}
}