5 * Created on March 5, 2011
7 * Copyright © 2011 Bryan Tong Minh <Bryan.TongMinh@Gmail.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
22 * http://www.gnu.org/copyleft/gpl.html
30 class ApiFileRevert
extends ApiBase
{
36 protected $archiveName;
40 public function __construct( $main, $action ) {
41 parent
::__construct( $main, $action );
44 public function execute() {
45 $this->params
= $this->extractRequestParams();
46 // Extract the file and archiveName from the request parameters
47 $this->validateParameters();
49 // Check whether we're allowed to revert this file
50 $this->checkPermissions( $this->getUser() );
52 $sourceUrl = $this->file
->getArchiveVirtualUrl( $this->archiveName
);
53 $status = $this->file
->upload( $sourceUrl, $this->params
['comment'], $this->params
['comment'] );
55 if ( $status->isGood() ) {
56 $result = array( 'result' => 'Success' );
59 'result' => 'Failure',
60 'errors' => $this->getResult()->convertStatusToArray( $status ),
64 $this->getResult()->addValue( null, $this->getModuleName(), $result );
69 * Checks that the user has permissions to perform this revert.
70 * Dies with usage message on inadequate permissions.
71 * @param $user User The user to check.
73 protected function checkPermissions( $user ) {
74 $permissionErrors = array_merge(
75 $this->file
->getTitle()->getUserPermissionsErrors( 'edit' , $user ),
76 $this->file
->getTitle()->getUserPermissionsErrors( 'upload' , $user )
79 if ( $permissionErrors ) {
80 $this->dieUsageMsg( $permissionErrors[0] );
85 * Validate the user parameters and set $this->archiveName and $this->file.
86 * Throws an error if validation fails
88 protected function validateParameters() {
89 // Validate the input title
90 $title = Title
::makeTitleSafe( NS_FILE
, $this->params
['filename'] );
91 if ( is_null( $title ) ) {
92 $this->dieUsageMsg( array( 'invalidtitle', $this->params
['filename'] ) );
94 // Check if the file really exists
95 $this->file
= wfLocalFile( $title );
96 if ( !$this->file
->exists() ) {
97 $this->dieUsageMsg( 'notanarticle' );
100 // Check if the archivename is valid for this file
101 $this->archiveName
= $this->params
['archivename'];
102 $oldFile = RepoGroup
::singleton()->getLocalRepo()->newFromArchiveName( $title, $this->archiveName
);
103 if ( !$oldFile->exists() ) {
104 $this->dieUsageMsg( 'filerevert-badversion' );
108 public function mustBePosted() {
112 public function isWriteMode() {
116 public function getAllowedParams() {
119 ApiBase
::PARAM_TYPE
=> 'string',
120 ApiBase
::PARAM_REQUIRED
=> true,
123 ApiBase
::PARAM_DFLT
=> '',
125 'archivename' => array(
126 ApiBase
::PARAM_TYPE
=> 'string',
127 ApiBase
::PARAM_REQUIRED
=> true,
134 public function getParamDescription() {
136 'filename' => 'Target filename without the File: prefix',
137 'token' => 'Edit token. You can get one of these through prop=info',
138 'comment' => 'Upload comment',
139 'archivename' => 'Archive name of the revision to revert to',
143 public function getResultProperties() {
147 ApiBase
::PROP_TYPE
=> array(
153 ApiBase
::PROP_TYPE
=> 'string',
154 ApiBase
::PROP_NULLABLE
=> true
160 public function getDescription() {
162 'Revert a file to an old version'
166 public function getPossibleErrors() {
167 return array_merge( parent
::getPossibleErrors(),
169 array( 'mustbeloggedin', 'upload' ),
170 array( 'badaccess-groups' ),
171 array( 'invalidtitle', 'title' ),
172 array( 'notanarticle' ),
173 array( 'filerevert-badversion' ),
178 public function needsToken() {
182 public function getTokenSalt() {
186 public function getExamples() {
188 'api.php?action=filerevert&filename=Wiki.png&comment=Revert&archivename=20110305152740!Wiki.png&token=+\\'
189 => 'Revert Wiki.png to the version of 20110305152740',
193 public function getVersion() {
194 return __CLASS__
. ': $Id$';