includes/api/ApiProtect.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on Sep 1, 2007
   6  *
   7  * Copyright © 2007 Roan Kattouw <Firstname>.<Lastname>@gmail.com
   8  *
   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.
  13  *
  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.
  18  *
  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
  23  *
  24  * @file
  25  */
  26
  27 if ( !defined( 'MEDIAWIKI' ) ) {
  28         // Eclipse helper - will be ignored in production
  29         require_once( "ApiBase.php" );
  30 }
  31
  32 /**
  33  * @ingroup API
  34  */
  35 class ApiProtect extends ApiBase {
  36
  37         public function __construct( $main, $action ) {
  38                 parent::__construct( $main, $action );
  39         }
  40
  41         public function execute() {
  42                 global $wgUser, $wgRestrictionLevels;
  43                 $params = $this->extractRequestParams();
  44
  45                 $titleObj = Title::newFromText( $params['title'] );
  46                 if ( !$titleObj ) {
  47                         $this->dieUsageMsg( array( 'invalidtitle', $params['title'] ) );
  48                 }
  49
  50                 $errors = $titleObj->getUserPermissionsErrors( 'protect', $wgUser );
  51                 if ( $errors ) {
  52                         // We don't care about multiple errors, just report one of them
  53                         $this->dieUsageMsg( reset( $errors ) );
  54                 }
  55
  56                 $expiry = (array)$params['expiry'];
  57                 if ( count( $expiry ) != count( $params['protections'] ) ) {
  58                         if ( count( $expiry ) == 1 ) {
  59                                 $expiry = array_fill( 0, count( $params['protections'] ), $expiry[0] );
  60                         } else {
  61                                 $this->dieUsageMsg( array( 'toofewexpiries', count( $expiry ), count( $params['protections'] ) ) );
  62                         }
  63                 }
  64
  65                 $restrictionTypes = $titleObj->getRestrictionTypes();
  66                 $dbr = wfGetDB( DB_SLAVE );
  67
  68                 $protections = array();
  69                 $expiryarray = array();
  70                 $resultProtections = array();
  71                 foreach ( $params['protections'] as $i => $prot ) {
  72                         $p = explode( '=', $prot );
  73                         $protections[$p[0]] = ( $p[1] == 'all' ? '' : $p[1] );
  74
  75                         if ( $titleObj->exists() && $p[0] == 'create' ) {
  76                                 $this->dieUsageMsg( array( 'create-titleexists' ) );
  77                         }
  78                         if ( !$titleObj->exists() && $p[0] != 'create' ) {
  79                                 $this->dieUsageMsg( array( 'missingtitle-createonly' ) );
  80                         }
  81
  82                         if ( !in_array( $p[0], $restrictionTypes ) && $p[0] != 'create' ) {
  83                                 $this->dieUsageMsg( array( 'protect-invalidaction', $p[0] ) );
  84                         }
  85                         if ( !in_array( $p[1], $wgRestrictionLevels ) && $p[1] != 'all' ) {
  86                                 $this->dieUsageMsg( array( 'protect-invalidlevel', $p[1] ) );
  87                         }
  88
  89                         if ( in_array( $expiry[$i], array( 'infinite', 'indefinite', 'never' ) ) ) {
  90                                 $expiryarray[$p[0]] = $dbr->getInfinity();
  91                         } else {
  92                                 $exp = strtotime( $expiry[$i] );
  93                                 if ( $exp < 0 || !$exp ) {
  94                                         $this->dieUsageMsg( array( 'invalidexpiry', $expiry[$i] ) );
  95                                 }
  96
  97                                 $exp = wfTimestamp( TS_MW, $exp );
  98                                 if ( $exp < wfTimestampNow() ) {
  99                                         $this->dieUsageMsg( array( 'pastexpiry', $expiry[$i] ) );
 100                                 }
 101                                 $expiryarray[$p[0]] = $exp;
 102                         }
 103                         $resultProtections[] = array( $p[0] => $protections[$p[0]],
 104                                         'expiry' => ( $expiryarray[$p[0]] == $dbr->getInfinity() ?
 105                                                                 'infinite' :
 106                                                                 wfTimestamp( TS_ISO_8601, $expiryarray[$p[0]] ) ) );
 107                 }
 108
 109                 $cascade = $params['cascade'];
 110                 $articleObj = new Article( $titleObj );
 111
 112                 $watch = $params['watch'] ? 'watch' : $params['watchlist'];
 113                 $this->setWatch( $watch, $titleObj );
 114
 115                 if ( $titleObj->exists() ) {
 116                         $ok = $articleObj->updateRestrictions( $protections, $params['reason'], $cascade, $expiryarray );
 117                 } else {
 118                         $ok = $titleObj->updateTitleProtection( $protections['create'], $params['reason'], $expiryarray['create'] );
 119                 }
 120                 if ( !$ok ) {
 121                         // This is very weird. Maybe the article was deleted or the user was blocked/desysopped in the meantime?
 122                         // Just throw an unknown error in this case, as it's very likely to be a race condition
 123                         $this->dieUsageMsg( array() );
 124                 }
 125                 $res = array(
 126                         'title' => $titleObj->getPrefixedText(),
 127                         'reason' => $params['reason']
 128                 );
 129                 if ( $cascade ) {
 130                         $res['cascade'] = '';
 131                 }
 132                 $res['protections'] = $resultProtections;
 133                 $this->getResult()->setIndexedTagName( $res['protections'], 'protection' );
 134                 $this->getResult()->addValue( null, $this->getModuleName(), $res );
 135         }
 136
 137         public function mustBePosted() {
 138                 return true;
 139         }
 140
 141         public function isWriteMode() {
 142                 return true;
 143         }
 144
 145         public function getAllowedParams() {
 146                 return array(
 147                         'title' => array(
 148                                 ApiBase::PARAM_TYPE => 'string',
 149                                 ApiBase::PARAM_REQUIRED => true
 150                         ),
 151                         'token' => null,
 152                         'protections' => array(
 153                                 ApiBase::PARAM_ISMULTI => true,
 154                                 ApiBase::PARAM_REQUIRED => true,
 155                         ),
 156                         'expiry' => array(
 157                                 ApiBase::PARAM_ISMULTI => true,
 158                                 ApiBase::PARAM_ALLOW_DUPLICATES => true,
 159                                 ApiBase::PARAM_DFLT => 'infinite',
 160                         ),
 161                         'reason' => '',
 162                         'cascade' => false,
 163                         'watch' => array(
 164                                 ApiBase::PARAM_DFLT => false,
 165                                 ApiBase::PARAM_DEPRECATED => true,
 166                         ),
 167                         'watchlist' => array(
 168                                 ApiBase::PARAM_DFLT => 'preferences',
 169                                 ApiBase::PARAM_TYPE => array(
 170                                         'watch',
 171                                         'unwatch',
 172                                         'preferences',
 173                                         'nochange'
 174                                 ),
 175                         ),
 176                 );
 177         }
 178
 179         public function getParamDescription() {
 180                 return array(
 181                         'title' => 'Title of the page you want to (un)protect',
 182                         'token' => 'A protect token previously retrieved through prop=info',
 183                         'protections' => 'Pipe-separated list of protection levels, formatted action=group (e.g. edit=sysop)',
 184                         'expiry' => array( 'Expiry timestamps. If only one timestamp is set, it\'ll be used for all protections.',
 185                                         'Use \'infinite\', \'indefinite\' or \'never\', for a neverexpiring protection.' ),
 186                         'reason' => 'Reason for (un)protecting (optional)',
 187                         'cascade' => array( 'Enable cascading protection (i.e. protect pages included in this page)',
 188                                         'Ignored if not all protection levels are \'sysop\' or \'protect\'' ),
 189                         'watch' => 'If set, add the page being (un)protected to your watchlist',
 190                         'watchlist' => 'Unconditionally add or remove the page from your watchlist, use preferences or do not change watch',
 191                 );
 192         }
 193
 194         public function getDescription() {
 195                 return 'Change the protection level of a page';
 196         }
 197
 198         public function getPossibleErrors() {
 199                 return array_merge( parent::getPossibleErrors(), array(
 200                         array( 'invalidtitle', 'title' ),
 201                         array( 'toofewexpiries', 'noofexpiries', 'noofprotections' ),
 202                         array( 'create-titleexists' ),
 203                         array( 'missingtitle-createonly' ),
 204                         array( 'protect-invalidaction', 'action' ),
 205                         array( 'protect-invalidlevel', 'level' ),
 206                         array( 'invalidexpiry', 'expiry' ),
 207                         array( 'pastexpiry', 'expiry' ),
 208                 ) );
 209         }
 210
 211         public function needsToken() {
 212                 return true;
 213         }
 214
 215         public function getTokenSalt() {
 216                 return '';
 217         }
 218
 219         protected function getExamples() {
 220                 return array(
 221                         'api.php?action=protect&title=Main%20Page&token=123ABC&protections=edit=sysop|move=sysop&cascade=&expiry=20070901163000|never',
 222                         'api.php?action=protect&title=Main%20Page&token=123ABC&protections=edit=all|move=all&reason=Lifting%20restrictions'
 223                 );
 224         }
 225
 226         public function getVersion() {
 227                 return __CLASS__ . ': $Id$';
 228         }
 229 }