includes/specials/SpecialImport.php

   1 <?php
   2 /**
   3  * Implements Special:Import
   4  *
   5  * Copyright © 2003,2005 Brion Vibber <brion@pobox.com>
   6  * https://www.mediawiki.org/
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  21  * http://www.gnu.org/copyleft/gpl.html
  22  *
  23  * @file
  24  * @ingroup SpecialPage
  25  */
  26
  27 use MediaWiki\MediaWikiServices;
  28 use MediaWiki\Permissions\PermissionManager;
  29
  30 /**
  31  * MediaWiki page data importer
  32  *
  33  * @ingroup SpecialPage
  34  */
  35 class SpecialImport extends SpecialPage {
  36         private $sourceName = false;
  37         private $interwiki = false;
  38         private $subproject;
  39         private $fullInterwikiPrefix;
  40         private $mapping = 'default';
  41         private $namespace;
  42         private $rootpage = '';
  43         private $frompage = '';
  44         private $logcomment = false;
  45         private $history = true;
  46         private $includeTemplates = false;
  47         private $pageLinkDepth;
  48         private $importSources;
  49         private $assignKnownUsers;
  50         private $usernamePrefix;
  51
  52         public function __construct() {
  53                 parent::__construct( 'Import', 'import' );
  54         }
  55
  56         public function doesWrites() {
  57                 return true;
  58         }
  59
  60         /**
  61          * Execute
  62          * @param string|null $par
  63          * @throws PermissionsError
  64          * @throws ReadOnlyError
  65          */
  66         function execute( $par ) {
  67                 $this->useTransactionalTimeLimit();
  68
  69                 $this->setHeaders();
  70                 $this->outputHeader();
  71
  72                 $this->namespace = $this->getConfig()->get( 'ImportTargetNamespace' );
  73
  74                 $this->getOutput()->addModules( 'mediawiki.special.import' );
  75
  76                 $this->importSources = $this->getConfig()->get( 'ImportSources' );
  77                 Hooks::run( 'ImportSources', [ &$this->importSources ] );
  78
  79                 $user = $this->getUser();
  80                 if ( !MediaWikiServices::getInstance()
  81                         ->getPermissionManager()
  82                         ->userHasAnyRight( $user, 'import', 'importupload' )
  83                 ) {
  84                         throw new PermissionsError( 'import' );
  85                 }
  86
  87                 # @todo Allow Title::getUserPermissionsErrors() to take an array
  88                 # @todo FIXME: Title::checkSpecialsAndNSPermissions() has a very weird expectation of what
  89                 # getUserPermissionsErrors() might actually be used for, hence the 'ns-specialprotected'
  90                 $errors = wfMergeErrorArrays(
  91                         $this->getPageTitle()->getUserPermissionsErrors(
  92                                 'import', $user, PermissionManager::RIGOR_FULL,
  93                                 [ 'ns-specialprotected', 'badaccess-group0', 'badaccess-groups' ]
  94                         ),
  95                         $this->getPageTitle()->getUserPermissionsErrors(
  96                                 'importupload', $user, PermissionManager::RIGOR_FULL,
  97                                 [ 'ns-specialprotected', 'badaccess-group0', 'badaccess-groups' ]
  98                         )
  99                 );
 100
 101                 if ( $errors ) {
 102                         throw new PermissionsError( 'import', $errors );
 103                 }
 104
 105                 $this->checkReadOnly();
 106
 107                 $request = $this->getRequest();
 108                 if ( $request->wasPosted() && $request->getVal( 'action' ) == 'submit' ) {
 109                         $this->doImport();
 110                 }
 111                 $this->showForm();
 112         }
 113
 114         /**
 115          * Do the actual import
 116          */
 117         private function doImport() {
 118                 $isUpload = false;
 119                 $request = $this->getRequest();
 120                 $this->sourceName = $request->getVal( "source" );
 121                 $this->assignKnownUsers = $request->getCheck( 'assignKnownUsers' );
 122
 123                 $this->logcomment = $request->getText( 'log-comment' );
 124                 $this->pageLinkDepth = $this->getConfig()->get( 'ExportMaxLinkDepth' ) == 0
 125                         ? 0
 126                         : $request->getIntOrNull( 'pagelink-depth' );
 127
 128                 $this->mapping = $request->getVal( 'mapping' );
 129                 if ( $this->mapping === 'namespace' ) {
 130                         $this->namespace = $request->getIntOrNull( 'namespace' );
 131                 } elseif ( $this->mapping === 'subpage' ) {
 132                         $this->rootpage = $request->getText( 'rootpage' );
 133                 } else {
 134                         $this->mapping = 'default';
 135                 }
 136
 137                 $user = $this->getUser();
 138                 if ( !$user->matchEditToken( $request->getVal( 'editToken' ) ) ) {
 139                         $source = Status::newFatal( 'import-token-mismatch' );
 140                 } elseif ( $this->sourceName === 'upload' ) {
 141                         $isUpload = true;
 142                         $this->usernamePrefix = $this->fullInterwikiPrefix = $request->getVal( 'usernamePrefix' );
 143                         if ( $user->isAllowed( 'importupload' ) ) {
 144                                 $source = ImportStreamSource::newFromUpload( "xmlimport" );
 145                         } else {
 146                                 throw new PermissionsError( 'importupload' );
 147                         }
 148                 } elseif ( $this->sourceName === 'interwiki' ) {
 149                         if ( !$user->isAllowed( 'import' ) ) {
 150                                 throw new PermissionsError( 'import' );
 151                         }
 152                         $this->interwiki = $this->fullInterwikiPrefix = $request->getVal( 'interwiki' );
 153                         // does this interwiki have subprojects?
 154                         $hasSubprojects = array_key_exists( $this->interwiki, $this->importSources );
 155                         if ( !$hasSubprojects && !in_array( $this->interwiki, $this->importSources ) ) {
 156                                 $source = Status::newFatal( "import-invalid-interwiki" );
 157                         } else {
 158                                 if ( $hasSubprojects ) {
 159                                         $this->subproject = $request->getVal( 'subproject' );
 160                                         $this->fullInterwikiPrefix .= ':' . $request->getVal( 'subproject' );
 161                                 }
 162                                 if ( $hasSubprojects &&
 163                                         !in_array( $this->subproject, $this->importSources[$this->interwiki] )
 164                                 ) {
 165                                         $source = Status::newFatal( "import-invalid-interwiki" );
 166                                 } else {
 167                                         $this->history = $request->getCheck( 'interwikiHistory' );
 168                                         $this->frompage = $request->getText( "frompage" );
 169                                         $this->includeTemplates = $request->getCheck( 'interwikiTemplates' );
 170                                         $source = ImportStreamSource::newFromInterwiki(
 171                                                 $this->fullInterwikiPrefix,
 172                                                 $this->frompage,
 173                                                 $this->history,
 174                                                 $this->includeTemplates,
 175                                                 $this->pageLinkDepth );
 176                                 }
 177                         }
 178                 } else {
 179                         $source = Status::newFatal( "importunknownsource" );
 180                 }
 181
 182                 if ( (string)$this->fullInterwikiPrefix === '' ) {
 183                         $source->fatal( 'importnoprefix' );
 184                 }
 185
 186                 $out = $this->getOutput();
 187                 if ( !$source->isGood() ) {
 188                         $out->wrapWikiTextAsInterface( 'error',
 189                                 $this->msg( 'importfailed', $source->getWikiText() )->plain()
 190                         );
 191                 } else {
 192                         $importer = new WikiImporter( $source->value, $this->getConfig() );
 193                         if ( !is_null( $this->namespace ) ) {
 194                                 $importer->setTargetNamespace( $this->namespace );
 195                         } elseif ( !is_null( $this->rootpage ) ) {
 196                                 $statusRootPage = $importer->setTargetRootPage( $this->rootpage );
 197                                 if ( !$statusRootPage->isGood() ) {
 198                                         $out->wrapWikiMsg(
 199                                                 "<div class=\"error\">\n$1\n</div>",
 200                                                 [
 201                                                         'import-options-wrong',
 202                                                         $statusRootPage->getWikiText(),
 203                                                         count( $statusRootPage->getErrorsArray() )
 204                                                 ]
 205                                         );
 206
 207                                         return;
 208                                 }
 209                         }
 210                         $importer->setUsernamePrefix( $this->fullInterwikiPrefix, $this->assignKnownUsers );
 211
 212                         $out->addWikiMsg( "importstart" );
 213
 214                         $reporter = new ImportReporter(
 215                                 $importer,
 216                                 $isUpload,
 217                                 $this->fullInterwikiPrefix,
 218                                 $this->logcomment
 219                         );
 220                         $reporter->setContext( $this->getContext() );
 221                         $exception = false;
 222
 223                         $reporter->open();
 224                         try {
 225                                 $importer->doImport();
 226                         } catch ( Exception $e ) {
 227                                 $exception = $e;
 228                         }
 229                         $result = $reporter->close();
 230
 231                         if ( $exception ) {
 232                                 # No source or XML parse error
 233                                 $out->wrapWikiMsg(
 234                                         "<div class=\"error\">\n$1\n</div>",
 235                                         [ 'importfailed', $exception->getMessage() ]
 236                                 );
 237                         } elseif ( !$result->isGood() ) {
 238                                 # Zero revisions
 239                                 $out->wrapWikiMsg(
 240                                         "<div class=\"error\">\n$1\n</div>",
 241                                         [ 'importfailed', $result->getWikiText() ]
 242                                 );
 243                         } else {
 244                                 # Success!
 245                                 $out->addWikiMsg( 'importsuccess' );
 246                         }
 247                         $out->addHTML( '<hr />' );
 248                 }
 249         }
 250
 251         private function getMappingFormPart( $sourceName ) {
 252                 $isSameSourceAsBefore = ( $this->sourceName === $sourceName );
 253                 $defaultNamespace = $this->getConfig()->get( 'ImportTargetNamespace' );
 254                 return "<tr>
 255                                         <td>
 256                                         </td>
 257                                         <td class='mw-input'>" .
 258                                         Xml::radioLabel(
 259                                                 $this->msg( 'import-mapping-default' )->text(),
 260                                                 'mapping',
 261                                                 'default',
 262                                                 // mw-import-mapping-interwiki-default, mw-import-mapping-upload-default
 263                                                 "mw-import-mapping-$sourceName-default",
 264                                                 ( $isSameSourceAsBefore ?
 265                                                         ( $this->mapping === 'default' ) :
 266                                                         is_null( $defaultNamespace ) )
 267                                         ) .
 268                                         "</td>
 269                                 </tr>
 270                                 <tr>
 271                                         <td>
 272                                         </td>
 273                                         <td class='mw-input'>" .
 274                                         Xml::radioLabel(
 275                                                 $this->msg( 'import-mapping-namespace' )->text(),
 276                                                 'mapping',
 277                                                 'namespace',
 278                                                 // mw-import-mapping-interwiki-namespace, mw-import-mapping-upload-namespace
 279                                                 "mw-import-mapping-$sourceName-namespace",
 280                                                 ( $isSameSourceAsBefore ?
 281                                                         ( $this->mapping === 'namespace' ) :
 282                                                         !is_null( $defaultNamespace ) )
 283                                         ) . ' ' .
 284                                         Html::namespaceSelector(
 285                                                 [
 286                                                         'selected' => ( $isSameSourceAsBefore ?
 287                                                                 $this->namespace :
 288                                                                 ( $defaultNamespace || '' ) ),
 289                                                         'in-user-lang' => true,
 290                                                 ], [
 291                                                         'name' => "namespace",
 292                                                         // mw-import-namespace-interwiki, mw-import-namespace-upload
 293                                                         'id' => "mw-import-namespace-$sourceName",
 294                                                         'class' => 'namespaceselector',
 295                                                 ]
 296                                         ) .
 297                                         "</td>
 298                                 </tr>
 299                                 <tr>
 300                                         <td>
 301                                         </td>
 302                                         <td class='mw-input'>" .
 303                                         Xml::radioLabel(
 304                                                 $this->msg( 'import-mapping-subpage' )->text(),
 305                                                 'mapping',
 306                                                 'subpage',
 307                                                 // mw-import-mapping-interwiki-subpage, mw-import-mapping-upload-subpage
 308                                                 "mw-import-mapping-$sourceName-subpage",
 309                                                 ( $isSameSourceAsBefore ? ( $this->mapping === 'subpage' ) : '' )
 310                                         ) . ' ' .
 311                                         Xml::input( 'rootpage', 50,
 312                                                 ( $isSameSourceAsBefore ? $this->rootpage : '' ),
 313                                                 [
 314                                                         // Should be "mw-import-rootpage-...", but we keep this inaccurate
 315                                                         // ID for legacy reasons
 316                                                         // mw-interwiki-rootpage-interwiki, mw-interwiki-rootpage-upload
 317                                                         'id' => "mw-interwiki-rootpage-$sourceName",
 318                                                         'type' => 'text'
 319                                                 ]
 320                                         ) . ' ' .
 321                                         "</td>
 322                                 </tr>";
 323         }
 324
 325         private function showForm() {
 326                 $action = $this->getPageTitle()->getLocalURL( [ 'action' => 'submit' ] );
 327                 $user = $this->getUser();
 328                 $out = $this->getOutput();
 329                 $this->addHelpLink( 'https://meta.wikimedia.org/wiki/Special:MyLanguage/Help:Import', true );
 330
 331                 if ( $user->isAllowed( 'importupload' ) ) {
 332                         $mappingSelection = $this->getMappingFormPart( 'upload' );
 333                         $out->addHTML(
 334                                 Xml::fieldset( $this->msg( 'import-upload' )->text() ) .
 335                                         Xml::openElement(
 336                                                 'form',
 337                                                 [
 338                                                         'enctype' => 'multipart/form-data',
 339                                                         'method' => 'post',
 340                                                         'action' => $action,
 341                                                         'id' => 'mw-import-upload-form'
 342                                                 ]
 343                                         ) .
 344                                         $this->msg( 'importtext' )->parseAsBlock() .
 345                                         Html::hidden( 'action', 'submit' ) .
 346                                         Html::hidden( 'source', 'upload' ) .
 347                                         Xml::openElement( 'table', [ 'id' => 'mw-import-table-upload' ] ) .
 348                                         "<tr>
 349                                         <td class='mw-label'>" .
 350                                         Xml::label( $this->msg( 'import-upload-filename' )->text(), 'xmlimport' ) .
 351                                         "</td>
 352                                         <td class='mw-input'>" .
 353                                         Html::input( 'xmlimport', '', 'file', [ 'id' => 'xmlimport' ] ) . ' ' .
 354                                         "</td>
 355                                 </tr>
 356                                 <tr>
 357                                         <td class='mw-label'>" .
 358                                         Xml::label( $this->msg( 'import-upload-username-prefix' )->text(),
 359                                                 'mw-import-usernamePrefix' ) .
 360                                         "</td>
 361                                         <td class='mw-input'>" .
 362                                         Xml::input( 'usernamePrefix', 50,
 363                                                 $this->usernamePrefix,
 364                                                 [ 'id' => 'usernamePrefix', 'type' => 'text' ] ) . ' ' .
 365                                         "</td>
 366                                 </tr>
 367                                 <tr>
 368                                         <td></td>
 369                                         <td class='mw-input'>" .
 370                                         Xml::checkLabel(
 371                                                 $this->msg( 'import-assign-known-users' )->text(),
 372                                                 'assignKnownUsers',
 373                                                 'assignKnownUsers',
 374                                                 $this->assignKnownUsers
 375                                         ) .
 376                                         "</td>
 377                                 </tr>
 378                                 <tr>
 379                                         <td class='mw-label'>" .
 380                                         Xml::label( $this->msg( 'import-comment' )->text(), 'mw-import-comment' ) .
 381                                         "</td>
 382                                         <td class='mw-input'>" .
 383                                         Xml::input( 'log-comment', 50,
 384                                                 ( $this->sourceName === 'upload' ? $this->logcomment : '' ),
 385                                                 [ 'id' => 'mw-import-comment', 'type' => 'text' ] ) . ' ' .
 386                                         "</td>
 387                                 </tr>
 388                                 $mappingSelection
 389                                 <tr>
 390                                         <td></td>
 391                                         <td class='mw-submit'>" .
 392                                         Xml::submitButton( $this->msg( 'uploadbtn' )->text() ) .
 393                                         "</td>
 394                                 </tr>" .
 395                                         Xml::closeElement( 'table' ) .
 396                                         Html::hidden( 'editToken', $user->getEditToken() ) .
 397                                         Xml::closeElement( 'form' ) .
 398                                         Xml::closeElement( 'fieldset' )
 399                         );
 400                 } elseif ( empty( $this->importSources ) ) {
 401                         $out->addWikiMsg( 'importnosources' );
 402                 }
 403
 404                 if ( $user->isAllowed( 'import' ) && !empty( $this->importSources ) ) {
 405                         # Show input field for import depth only if $wgExportMaxLinkDepth > 0
 406                         $importDepth = '';
 407                         if ( $this->getConfig()->get( 'ExportMaxLinkDepth' ) > 0 ) {
 408                                 $importDepth = "<tr>
 409                                                         <td class='mw-label'>" .
 410                                         $this->msg( 'export-pagelinks' )->parse() .
 411                                         "</td>
 412                                                         <td class='mw-input'>" .
 413                                         Xml::input( 'pagelink-depth', 3, 0 ) .
 414                                         "</td>
 415                                 </tr>";
 416                         }
 417                         $mappingSelection = $this->getMappingFormPart( 'interwiki' );
 418
 419                         $out->addHTML(
 420                                 Xml::fieldset( $this->msg( 'importinterwiki' )->text() ) .
 421                                         Xml::openElement(
 422                                                 'form',
 423                                                 [
 424                                                         'method' => 'post',
 425                                                         'action' => $action,
 426                                                         'id' => 'mw-import-interwiki-form'
 427                                                 ]
 428                                         ) .
 429                                         $this->msg( 'import-interwiki-text' )->parseAsBlock() .
 430                                         Html::hidden( 'action', 'submit' ) .
 431                                         Html::hidden( 'source', 'interwiki' ) .
 432                                         Html::hidden( 'editToken', $user->getEditToken() ) .
 433                                         Xml::openElement( 'table', [ 'id' => 'mw-import-table-interwiki' ] ) .
 434                                         "<tr>
 435                                         <td class='mw-label'>" .
 436                                         Xml::label( $this->msg( 'import-interwiki-sourcewiki' )->text(), 'interwiki' ) .
 437                                         "</td>
 438                                         <td class='mw-input'>" .
 439                                         Xml::openElement(
 440                                                 'select',
 441                                                 [ 'name' => 'interwiki', 'id' => 'interwiki' ]
 442                                         )
 443                         );
 444
 445                         $needSubprojectField = false;
 446                         foreach ( $this->importSources as $key => $value ) {
 447                                 if ( is_int( $key ) ) {
 448                                         $key = $value;
 449                                 } elseif ( $value !== $key ) {
 450                                         $needSubprojectField = true;
 451                                 }
 452
 453                                 $attribs = [
 454                                         'value' => $key,
 455                                 ];
 456                                 if ( is_array( $value ) ) {
 457                                         $attribs['data-subprojects'] = implode( ' ', $value );
 458                                 }
 459                                 if ( $this->interwiki === $key ) {
 460                                         $attribs['selected'] = 'selected';
 461                                 }
 462                                 $out->addHTML( Html::element( 'option', $attribs, $key ) );
 463                         }
 464
 465                         $out->addHTML(
 466                                 Xml::closeElement( 'select' )
 467                         );
 468
 469                         if ( $needSubprojectField ) {
 470                                 $out->addHTML(
 471                                         Xml::openElement(
 472                                                 'select',
 473                                                 [ 'name' => 'subproject', 'id' => 'subproject' ]
 474                                         )
 475                                 );
 476
 477                                 $subprojectsToAdd = [];
 478                                 foreach ( $this->importSources as $key => $value ) {
 479                                         if ( is_array( $value ) ) {
 480                                                 $subprojectsToAdd = array_merge( $subprojectsToAdd, $value );
 481                                         }
 482                                 }
 483                                 $subprojectsToAdd = array_unique( $subprojectsToAdd );
 484                                 sort( $subprojectsToAdd );
 485                                 foreach ( $subprojectsToAdd as $subproject ) {
 486                                         $out->addHTML( Xml::option( $subproject, $subproject, $this->subproject === $subproject ) );
 487                                 }
 488
 489                                 $out->addHTML(
 490                                         Xml::closeElement( 'select' )
 491                                 );
 492                         }
 493
 494                         $out->addHTML(
 495                                         "</td>
 496                                 </tr>
 497                                 <tr>
 498                                         <td class='mw-label'>" .
 499                                         Xml::label( $this->msg( 'import-interwiki-sourcepage' )->text(), 'frompage' ) .
 500                                         "</td>
 501                                         <td class='mw-input'>" .
 502                                         Xml::input( 'frompage', 50, $this->frompage, [ 'id' => 'frompage' ] ) .
 503                                         "</td>
 504                                 </tr>
 505                                 <tr>
 506                                         <td>
 507                                         </td>
 508                                         <td class='mw-input'>" .
 509                                         Xml::checkLabel(
 510                                                 $this->msg( 'import-interwiki-history' )->text(),
 511                                                 'interwikiHistory',
 512                                                 'interwikiHistory',
 513                                                 $this->history
 514                                         ) .
 515                                         "</td>
 516                                 </tr>
 517                                 <tr>
 518                                         <td>
 519                                         </td>
 520                                         <td class='mw-input'>" .
 521                                         Xml::checkLabel(
 522                                                 $this->msg( 'import-interwiki-templates' )->text(),
 523                                                 'interwikiTemplates',
 524                                                 'interwikiTemplates',
 525                                                 $this->includeTemplates
 526                                         ) .
 527                                         "</td>
 528                                 </tr>
 529                                 <tr>
 530                                         <td></td>
 531                                         <td class='mw-input'>" .
 532                                         Xml::checkLabel(
 533                                                 $this->msg( 'import-assign-known-users' )->text(),
 534                                                 'assignKnownUsers',
 535                                                 'interwikiAssignKnownUsers',
 536                                                 $this->assignKnownUsers
 537                                         ) .
 538                                         "</td>
 539                                 </tr>
 540                                 $importDepth
 541                                 <tr>
 542                                         <td class='mw-label'>" .
 543                                         Xml::label( $this->msg( 'import-comment' )->text(), 'mw-interwiki-comment' ) .
 544                                         "</td>
 545                                         <td class='mw-input'>" .
 546                                         Xml::input( 'log-comment', 50,
 547                                                 ( $this->sourceName === 'interwiki' ? $this->logcomment : '' ),
 548                                                 [ 'id' => 'mw-interwiki-comment', 'type' => 'text' ] ) . ' ' .
 549                                         "</td>
 550                                 </tr>
 551                                 $mappingSelection
 552                                 <tr>
 553                                         <td>
 554                                         </td>
 555                                         <td class='mw-submit'>" .
 556                                         Xml::submitButton(
 557                                                 $this->msg( 'import-interwiki-submit' )->text(),
 558                                                 Linker::tooltipAndAccesskeyAttribs( 'import' )
 559                                         ) .
 560                                         "</td>
 561                                 </tr>" .
 562                                         Xml::closeElement( 'table' ) .
 563                                         Xml::closeElement( 'form' ) .
 564                                         Xml::closeElement( 'fieldset' )
 565                         );
 566                 }
 567         }
 568
 569         protected function getGroupName() {
 570                 return 'pagetools';
 571         }
 572 }