includes/api/ApiMove.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on Oct 31, 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 /**
  28  * API Module to move pages
  29  * @ingroup API
  30  */
  31 class ApiMove extends ApiBase {
  32
  33         public function execute() {
  34                 $user = $this->getUser();
  35                 $params = $this->extractRequestParams();
  36
  37                 $this->requireOnlyOneParameter( $params, 'from', 'fromid' );
  38
  39                 if ( isset( $params['from'] ) ) {
  40                         $fromTitle = Title::newFromText( $params['from'] );
  41                         if ( !$fromTitle || $fromTitle->isExternal() ) {
  42                                 $this->dieUsageMsg( array( 'invalidtitle', $params['from'] ) );
  43                         }
  44                 } elseif ( isset( $params['fromid'] ) ) {
  45                         $fromTitle = Title::newFromID( $params['fromid'] );
  46                         if ( !$fromTitle ) {
  47                                 $this->dieUsageMsg( array( 'nosuchpageid', $params['fromid'] ) );
  48                         }
  49                 }
  50
  51                 if ( !$fromTitle->exists() ) {
  52                         $this->dieUsageMsg( 'notanarticle' );
  53                 }
  54                 $fromTalk = $fromTitle->getTalkPage();
  55
  56                 $toTitle = Title::newFromText( $params['to'] );
  57                 if ( !$toTitle || $toTitle->isExternal() ) {
  58                         $this->dieUsageMsg( array( 'invalidtitle', $params['to'] ) );
  59                 }
  60                 $toTalk = $toTitle->getTalkPage();
  61
  62                 if ( $toTitle->getNamespace() == NS_FILE
  63                         && !RepoGroup::singleton()->getLocalRepo()->findFile( $toTitle )
  64                         && wfFindFile( $toTitle )
  65                 ) {
  66                         if ( !$params['ignorewarnings'] && $user->isAllowed( 'reupload-shared' ) ) {
  67                                 $this->dieUsageMsg( 'sharedfile-exists' );
  68                         } elseif ( !$user->isAllowed( 'reupload-shared' ) ) {
  69                                 $this->dieUsageMsg( 'cantoverwrite-sharedfile' );
  70                         }
  71                 }
  72
  73                 // Move the page
  74                 $toTitleExists = $toTitle->exists();
  75                 $status = $this->movePage( $fromTitle, $toTitle, $params['reason'], !$params['noredirect'] );
  76                 if ( !$status->isOK() ) {
  77                         $this->dieStatus( $status );
  78                 }
  79
  80                 $r = array(
  81                         'from' => $fromTitle->getPrefixedText(),
  82                         'to' => $toTitle->getPrefixedText(),
  83                         'reason' => $params['reason']
  84                 );
  85
  86                 if ( $fromTitle->exists() ) {
  87                         //NOTE: we assume that if the old title exists, it's because it was re-created as
  88                         // a redirect to the new title. This is not safe, but what we did before was
  89                         // even worse: we just determined whether a redirect should have been created,
  90                         // and reported that it was created if it should have, without any checks.
  91                         // Also note that isRedirect() is unreliable because of bug 37209.
  92                         $r['redirectcreated'] = '';
  93                 }
  94
  95                 if ( $toTitleExists ) {
  96                         $r['moveoverredirect'] = '';
  97                 }
  98
  99                 // Move the talk page
 100                 if ( $params['movetalk'] && $fromTalk->exists() && !$fromTitle->isTalkPage() ) {
 101                         $toTalkExists = $toTalk->exists();
 102                         $status = $this->movePage( $fromTalk, $toTalk, $params['reason'], !$params['noredirect'] );
 103                         if ( $status->isOK() ) {
 104                                 $r['talkfrom'] = $fromTalk->getPrefixedText();
 105                                 $r['talkto'] = $toTalk->getPrefixedText();
 106                                 if ( $toTalkExists ) {
 107                                         $r['talkmoveoverredirect'] = '';
 108                                 }
 109                         } else {
 110                                 // We're not gonna dieUsage() on failure, since we already changed something
 111                                 $error = $this->getErrorFromStatus( $status );
 112                                 $r['talkmove-error-code'] = $error[0];
 113                                 $r['talkmove-error-info'] = $error[1];
 114                         }
 115                 }
 116
 117                 $result = $this->getResult();
 118
 119                 // Move subpages
 120                 if ( $params['movesubpages'] ) {
 121                         $r['subpages'] = $this->moveSubpages( $fromTitle, $toTitle,
 122                                 $params['reason'], $params['noredirect'] );
 123                         $result->setIndexedTagName( $r['subpages'], 'subpage' );
 124
 125                         if ( $params['movetalk'] ) {
 126                                 $r['subpages-talk'] = $this->moveSubpages( $fromTalk, $toTalk,
 127                                         $params['reason'], $params['noredirect'] );
 128                                 $result->setIndexedTagName( $r['subpages-talk'], 'subpage' );
 129                         }
 130                 }
 131
 132                 $watch = 'preferences';
 133                 if ( isset( $params['watchlist'] ) ) {
 134                         $watch = $params['watchlist'];
 135                 } elseif ( $params['watch'] ) {
 136                         $watch = 'watch';
 137                         $this->logFeatureUsage( 'action=move&watch' );
 138                 } elseif ( $params['unwatch'] ) {
 139                         $watch = 'unwatch';
 140                         $this->logFeatureUsage( 'action=move&unwatch' );
 141                 }
 142
 143                 // Watch pages
 144                 $this->setWatch( $watch, $fromTitle, 'watchmoves' );
 145                 $this->setWatch( $watch, $toTitle, 'watchmoves' );
 146
 147                 $result->addValue( null, $this->getModuleName(), $r );
 148         }
 149
 150         /**
 151          * @param Title $from
 152          * @param Title $to
 153          * @param string $reason
 154          * @param bool $createRedirect
 155          * @return Status
 156          */
 157         protected function movePage( Title $from, Title $to, $reason, $createRedirect ) {
 158                 $mp = new MovePage( $from, $to );
 159                 $valid = $mp->isValidMove();
 160                 if ( !$valid->isOK() ) {
 161                         return $valid;
 162                 }
 163
 164                 $permStatus = $mp->checkPermissions( $this->getUser(), $reason );
 165                 if ( !$permStatus->isOK() ) {
 166                         return $permStatus;
 167                 }
 168
 169                 return $mp->move( $this->getUser(), $reason, $createRedirect );
 170         }
 171
 172         /**
 173          * @param Title $fromTitle
 174          * @param Title $toTitle
 175          * @param string $reason
 176          * @param bool $noredirect
 177          * @return array
 178          */
 179         public function moveSubpages( $fromTitle, $toTitle, $reason, $noredirect ) {
 180                 $retval = array();
 181                 $success = $fromTitle->moveSubpages( $toTitle, true, $reason, !$noredirect );
 182                 if ( isset( $success[0] ) ) {
 183                         return array( 'error' => $this->parseMsg( $success ) );
 184                 }
 185
 186                 // At least some pages could be moved
 187                 // Report each of them separately
 188                 foreach ( $success as $oldTitle => $newTitle ) {
 189                         $r = array( 'from' => $oldTitle );
 190                         if ( is_array( $newTitle ) ) {
 191                                 $r['error'] = $this->parseMsg( reset( $newTitle ) );
 192                         } else {
 193                                 // Success
 194                                 $r['to'] = $newTitle;
 195                         }
 196                         $retval[] = $r;
 197                 }
 198
 199                 return $retval;
 200         }
 201
 202         public function mustBePosted() {
 203                 return true;
 204         }
 205
 206         public function isWriteMode() {
 207                 return true;
 208         }
 209
 210         public function getAllowedParams() {
 211                 return array(
 212                         'from' => null,
 213                         'fromid' => array(
 214                                 ApiBase::PARAM_TYPE => 'integer'
 215                         ),
 216                         'to' => array(
 217                                 ApiBase::PARAM_TYPE => 'string',
 218                                 ApiBase::PARAM_REQUIRED => true
 219                         ),
 220                         'reason' => '',
 221                         'movetalk' => false,
 222                         'movesubpages' => false,
 223                         'noredirect' => false,
 224                         'watch' => array(
 225                                 ApiBase::PARAM_DFLT => false,
 226                                 ApiBase::PARAM_DEPRECATED => true,
 227                         ),
 228                         'unwatch' => array(
 229                                 ApiBase::PARAM_DFLT => false,
 230                                 ApiBase::PARAM_DEPRECATED => true,
 231                         ),
 232                         'watchlist' => array(
 233                                 ApiBase::PARAM_DFLT => 'preferences',
 234                                 ApiBase::PARAM_TYPE => array(
 235                                         'watch',
 236                                         'unwatch',
 237                                         'preferences',
 238                                         'nochange'
 239                                 ),
 240                         ),
 241                         'ignorewarnings' => false
 242                 );
 243         }
 244
 245         public function needsToken() {
 246                 return 'csrf';
 247         }
 248
 249         public function getExamplesMessages() {
 250                 return array(
 251                         'action=move&from=Badtitle&to=Goodtitle&token=123ABC&' .
 252                                 'reason=Misspelled%20title&movetalk=&noredirect='
 253                                 => 'apihelp-move-example-move',
 254                 );
 255         }
 256
 257         public function getHelpUrls() {
 258                 return 'https://www.mediawiki.org/wiki/API:Move';
 259         }
 260 }