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                 $this->useTransactionalTimeLimit();
  35
  36                 $user = $this->getUser();
  37                 $params = $this->extractRequestParams();
  38
  39                 $this->requireOnlyOneParameter( $params, 'from', 'fromid' );
  40
  41                 if ( isset( $params['from'] ) ) {
  42                         $fromTitle = Title::newFromText( $params['from'] );
  43                         if ( !$fromTitle || $fromTitle->isExternal() ) {
  44                                 $this->dieWithError( [ 'apierror-invalidtitle', wfEscapeWikiText( $params['from'] ) ] );
  45                         }
  46                 } elseif ( isset( $params['fromid'] ) ) {
  47                         $fromTitle = Title::newFromID( $params['fromid'] );
  48                         if ( !$fromTitle ) {
  49                                 $this->dieWithError( [ 'apierror-nosuchpageid', $params['fromid'] ] );
  50                         }
  51                 }
  52
  53                 if ( !$fromTitle->exists() ) {
  54                         $this->dieWithError( 'apierror-missingtitle' );
  55                 }
  56                 $fromTalk = $fromTitle->getTalkPage();
  57
  58                 $toTitle = Title::newFromText( $params['to'] );
  59                 if ( !$toTitle || $toTitle->isExternal() ) {
  60                         $this->dieWithError( [ 'apierror-invalidtitle', wfEscapeWikiText( $params['to'] ) ] );
  61                 }
  62                 $toTalk = $toTitle->getTalkPageIfDefined();
  63
  64                 if ( $toTitle->getNamespace() == NS_FILE
  65                         && !RepoGroup::singleton()->getLocalRepo()->findFile( $toTitle )
  66                         && wfFindFile( $toTitle )
  67                 ) {
  68                         if ( !$params['ignorewarnings'] && $user->isAllowed( 'reupload-shared' ) ) {
  69                                 $this->dieWithError( 'apierror-fileexists-sharedrepo-perm' );
  70                         } elseif ( !$user->isAllowed( 'reupload-shared' ) ) {
  71                                 $this->dieWithError( 'apierror-cantoverwrite-sharedfile' );
  72                         }
  73                 }
  74
  75                 // Rate limit
  76                 if ( $user->pingLimiter( 'move' ) ) {
  77                         $this->dieWithError( 'apierror-ratelimited' );
  78                 }
  79
  80                 // Check if the user is allowed to add the specified changetags
  81                 if ( $params['tags'] ) {
  82                         $ableToTag = ChangeTags::canAddTagsAccompanyingChange( $params['tags'], $user );
  83                         if ( !$ableToTag->isOK() ) {
  84                                 $this->dieStatus( $ableToTag );
  85                         }
  86                 }
  87
  88                 // Move the page
  89                 $toTitleExists = $toTitle->exists();
  90                 $status = $this->movePage( $fromTitle, $toTitle, $params['reason'], !$params['noredirect'],
  91                         $params['tags'] ?: [] );
  92                 if ( !$status->isOK() ) {
  93                         $this->dieStatus( $status );
  94                 }
  95
  96                 $r = [
  97                         'from' => $fromTitle->getPrefixedText(),
  98                         'to' => $toTitle->getPrefixedText(),
  99                         'reason' => $params['reason']
 100                 ];
 101
 102                 // NOTE: we assume that if the old title exists, it's because it was re-created as
 103                 // a redirect to the new title. This is not safe, but what we did before was
 104                 // even worse: we just determined whether a redirect should have been created,
 105                 // and reported that it was created if it should have, without any checks.
 106                 // Also note that isRedirect() is unreliable because of T39209.
 107                 $r['redirectcreated'] = $fromTitle->exists();
 108
 109                 $r['moveoverredirect'] = $toTitleExists;
 110
 111                 // Move the talk page
 112                 if ( $params['movetalk'] && $toTalk && $fromTalk->exists() && !$fromTitle->isTalkPage() ) {
 113                         $toTalkExists = $toTalk->exists();
 114                         $status = $this->movePage(
 115                                 $fromTalk,
 116                                 $toTalk,
 117                                 $params['reason'],
 118                                 !$params['noredirect'],
 119                                 $params['tags'] ?: []
 120                         );
 121                         if ( $status->isOK() ) {
 122                                 $r['talkfrom'] = $fromTalk->getPrefixedText();
 123                                 $r['talkto'] = $toTalk->getPrefixedText();
 124                                 $r['talkmoveoverredirect'] = $toTalkExists;
 125                         } else {
 126                                 // We're not going to dieWithError() on failure, since we already changed something
 127                                 $r['talkmove-errors'] = $this->getErrorFormatter()->arrayFromStatus( $status );
 128                         }
 129                 }
 130
 131                 $result = $this->getResult();
 132
 133                 // Move subpages
 134                 if ( $params['movesubpages'] ) {
 135                         $r['subpages'] = $this->moveSubpages(
 136                                 $fromTitle,
 137                                 $toTitle,
 138                                 $params['reason'],
 139                                 $params['noredirect'],
 140                                 $params['tags'] ?: []
 141                         );
 142                         ApiResult::setIndexedTagName( $r['subpages'], 'subpage' );
 143
 144                         if ( $params['movetalk'] ) {
 145                                 $r['subpages-talk'] = $this->moveSubpages(
 146                                         $fromTalk,
 147                                         $toTalk,
 148                                         $params['reason'],
 149                                         $params['noredirect'],
 150                                         $params['tags'] ?: []
 151                                 );
 152                                 ApiResult::setIndexedTagName( $r['subpages-talk'], 'subpage' );
 153                         }
 154                 }
 155
 156                 $watch = 'preferences';
 157                 if ( isset( $params['watchlist'] ) ) {
 158                         $watch = $params['watchlist'];
 159                 } elseif ( $params['watch'] ) {
 160                         $watch = 'watch';
 161                 } elseif ( $params['unwatch'] ) {
 162                         $watch = 'unwatch';
 163                 }
 164
 165                 // Watch pages
 166                 $this->setWatch( $watch, $fromTitle, 'watchmoves' );
 167                 $this->setWatch( $watch, $toTitle, 'watchmoves' );
 168
 169                 $result->addValue( null, $this->getModuleName(), $r );
 170         }
 171
 172         /**
 173          * @param Title $from
 174          * @param Title $to
 175          * @param string $reason
 176          * @param bool $createRedirect
 177          * @param array $changeTags Applied to the entry in the move log and redirect page revision
 178          * @return Status
 179          */
 180         protected function movePage( Title $from, Title $to, $reason, $createRedirect, $changeTags ) {
 181                 $mp = new MovePage( $from, $to );
 182                 $valid = $mp->isValidMove();
 183                 if ( !$valid->isOK() ) {
 184                         return $valid;
 185                 }
 186
 187                 $user = $this->getUser();
 188                 $permStatus = $mp->checkPermissions( $user, $reason );
 189                 if ( !$permStatus->isOK() ) {
 190                         return $permStatus;
 191                 }
 192
 193                 // Check suppressredirect permission
 194                 if ( !$user->isAllowed( 'suppressredirect' ) ) {
 195                         $createRedirect = true;
 196                 }
 197
 198                 return $mp->move( $user, $reason, $createRedirect, $changeTags );
 199         }
 200
 201         /**
 202          * @param Title $fromTitle
 203          * @param Title $toTitle
 204          * @param string $reason
 205          * @param bool $noredirect
 206          * @param array $changeTags Applied to the entry in the move log and redirect page revisions
 207          * @return array
 208          */
 209         public function moveSubpages( $fromTitle, $toTitle, $reason, $noredirect, $changeTags = [] ) {
 210                 $retval = [];
 211
 212                 $success = $fromTitle->moveSubpages( $toTitle, true, $reason, !$noredirect, $changeTags );
 213                 if ( isset( $success[0] ) ) {
 214                         $status = $this->errorArrayToStatus( $success );
 215                         return [ 'errors' => $this->getErrorFormatter()->arrayFromStatus( $status ) ];
 216                 }
 217
 218                 // At least some pages could be moved
 219                 // Report each of them separately
 220                 foreach ( $success as $oldTitle => $newTitle ) {
 221                         $r = [ 'from' => $oldTitle ];
 222                         if ( is_array( $newTitle ) ) {
 223                                 $status = $this->errorArrayToStatus( $newTitle );
 224                                 $r['errors'] = $this->getErrorFormatter()->arrayFromStatus( $status );
 225                         } else {
 226                                 // Success
 227                                 $r['to'] = $newTitle;
 228                         }
 229                         $retval[] = $r;
 230                 }
 231
 232                 return $retval;
 233         }
 234
 235         public function mustBePosted() {
 236                 return true;
 237         }
 238
 239         public function isWriteMode() {
 240                 return true;
 241         }
 242
 243         public function getAllowedParams() {
 244                 return [
 245                         'from' => null,
 246                         'fromid' => [
 247                                 ApiBase::PARAM_TYPE => 'integer'
 248                         ],
 249                         'to' => [
 250                                 ApiBase::PARAM_TYPE => 'string',
 251                                 ApiBase::PARAM_REQUIRED => true
 252                         ],
 253                         'reason' => '',
 254                         'movetalk' => false,
 255                         'movesubpages' => false,
 256                         'noredirect' => false,
 257                         'watch' => [
 258                                 ApiBase::PARAM_DFLT => false,
 259                                 ApiBase::PARAM_DEPRECATED => true,
 260                         ],
 261                         'unwatch' => [
 262                                 ApiBase::PARAM_DFLT => false,
 263                                 ApiBase::PARAM_DEPRECATED => true,
 264                         ],
 265                         'watchlist' => [
 266                                 ApiBase::PARAM_DFLT => 'preferences',
 267                                 ApiBase::PARAM_TYPE => [
 268                                         'watch',
 269                                         'unwatch',
 270                                         'preferences',
 271                                         'nochange'
 272                                 ],
 273                         ],
 274                         'ignorewarnings' => false,
 275                         'tags' => [
 276                                 ApiBase::PARAM_TYPE => 'tags',
 277                                 ApiBase::PARAM_ISMULTI => true,
 278                         ],
 279                 ];
 280         }
 281
 282         public function needsToken() {
 283                 return 'csrf';
 284         }
 285
 286         protected function getExamplesMessages() {
 287                 return [
 288                         'action=move&from=Badtitle&to=Goodtitle&token=123ABC&' .
 289                                 'reason=Misspelled%20title&movetalk=&noredirect='
 290                                 => 'apihelp-move-example-move',
 291                 ];
 292         }
 293
 294         public function getHelpUrls() {
 295                 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Move';
 296         }
 297 }