includes/specials/SpecialImport.php

   1 <?php
   2 /**
   3  * Implements Special:Import
   4  *
   5  * Copyright © 2003,2005 Brion Vibber <brion@pobox.com>
   6  * http://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 /**
  28  * MediaWiki page data importer
  29  *
  30  * @ingroup SpecialPage
  31  */
  32 class SpecialImport extends SpecialPage {
  33
  34         private $interwiki = false;
  35         private $namespace;
  36         private $rootpage = '';
  37         private $frompage = '';
  38         private $logcomment= false;
  39         private $history = true;
  40         private $includeTemplates = false;
  41         private $pageLinkDepth;
  42
  43         /**
  44          * Constructor
  45          */
  46         public function __construct() {
  47                 parent::__construct( 'Import', 'import' );
  48                 global $wgImportTargetNamespace;
  49                 $this->namespace = $wgImportTargetNamespace;
  50         }
  51
  52         /**
  53          * Execute
  54          */
  55         function execute( $par ) {
  56                 $this->setHeaders();
  57                 $this->outputHeader();
  58
  59                 $user = $this->getUser();
  60                 if ( !$user->isAllowedAny( 'import', 'importupload' ) ) {
  61                         throw new PermissionsError( 'import' );
  62                 }
  63
  64                 # @todo Allow Title::getUserPermissionsErrors() to take an array
  65                 # @todo FIXME: Title::checkSpecialsAndNSPermissions() has a very wierd expectation of what
  66                 # getUserPermissionsErrors() might actually be used for, hence the 'ns-specialprotected'
  67                 $errors = wfMergeErrorArrays(
  68                         $this->getTitle()->getUserPermissionsErrors(
  69                                 'import', $user, true,
  70                                 array( 'ns-specialprotected', 'badaccess-group0', 'badaccess-groups' )
  71                         ),
  72                         $this->getTitle()->getUserPermissionsErrors(
  73                                 'importupload', $user, true,
  74                                 array( 'ns-specialprotected', 'badaccess-group0', 'badaccess-groups' )
  75                         )
  76                 );
  77
  78                 if ( $errors ) {
  79                         throw new PermissionsError( 'import', $errors );
  80                 }
  81
  82                 $this->checkReadOnly();
  83
  84                 $request = $this->getRequest();
  85                 if ( $request->wasPosted() && $request->getVal( 'action' ) == 'submit' ) {
  86                         $this->doImport();
  87                 }
  88                 $this->showForm();
  89         }
  90
  91         /**
  92          * Do the actual import
  93          */
  94         private function doImport() {
  95                 global $wgImportSources, $wgExportMaxLinkDepth;
  96
  97                 $isUpload = false;
  98                 $request = $this->getRequest();
  99                 $this->namespace = $request->getIntOrNull( 'namespace' );
 100                 $sourceName = $request->getVal( "source" );
 101
 102                 $this->logcomment = $request->getText( 'log-comment' );
 103                 $this->pageLinkDepth = $wgExportMaxLinkDepth == 0 ? 0 : $request->getIntOrNull( 'pagelink-depth' );
 104                 $this->rootpage = $request->getText( 'rootpage' );
 105
 106                 $user = $this->getUser();
 107                 if ( !$user->matchEditToken( $request->getVal( 'editToken' ) ) ) {
 108                         $source = Status::newFatal( 'import-token-mismatch' );
 109                 } elseif ( $sourceName == 'upload' ) {
 110                         $isUpload = true;
 111                         if( $user->isAllowed( 'importupload' ) ) {
 112                                 $source = ImportStreamSource::newFromUpload( "xmlimport" );
 113                         } else {
 114                                 throw new PermissionsError( 'importupload' );
 115                         }
 116                 } elseif ( $sourceName == "interwiki" ) {
 117                         if( !$user->isAllowed( 'import' ) ) {
 118                                 throw new PermissionsError( 'import' );
 119                         }
 120                         $this->interwiki = $request->getVal( 'interwiki' );
 121                         if ( !in_array( $this->interwiki, $wgImportSources ) ) {
 122                                 $source = Status::newFatal( "import-invalid-interwiki" );
 123                         } else {
 124                                 $this->history = $request->getCheck( 'interwikiHistory' );
 125                                 $this->frompage = $request->getText( "frompage" );
 126                                 $this->includeTemplates = $request->getCheck( 'interwikiTemplates' );
 127                                 $source = ImportStreamSource::newFromInterwiki(
 128                                         $this->interwiki,
 129                                         $this->frompage,
 130                                         $this->history,
 131                                         $this->includeTemplates,
 132                                         $this->pageLinkDepth );
 133                         }
 134                 } else {
 135                         $source = Status::newFatal( "importunknownsource" );
 136                 }
 137
 138                 $out = $this->getOutput();
 139                 if( !$source->isGood() ) {
 140                         $out->wrapWikiMsg( "<p class=\"error\">\n$1\n</p>", array( 'importfailed', $source->getWikiText() ) );
 141                 } else {
 142                         $importer = new WikiImporter( $source->value );
 143                         if( !is_null( $this->namespace ) ) {
 144                                 $importer->setTargetNamespace( $this->namespace );
 145                         }
 146                         if( !is_null( $this->rootpage ) ) {
 147                                 $statusRootPage = $importer->setTargetRootPage( $this->rootpage );
 148                                 if( !$statusRootPage->isGood() ) {
 149                                         $out->wrapWikiMsg( "<p class=\"error\">\n$1\n</p>", array( 'import-options-wrong', $statusRootPage->getWikiText(), count( $statusRootPage->getErrorsArray() ) ) );
 150                                         return;
 151                                 }
 152                         }
 153
 154                         $out->addWikiMsg( "importstart" );
 155
 156                         $reporter = new ImportReporter( $importer, $isUpload, $this->interwiki, $this->logcomment );
 157                         $reporter->setContext( $this->getContext() );
 158                         $exception = false;
 159
 160                         $reporter->open();
 161                         try {
 162                                 $importer->doImport();
 163                         } catch ( MWException $e ) {
 164                                 $exception = $e;
 165                         }
 166                         $result = $reporter->close();
 167
 168                         if ( $exception ) {
 169                                 # No source or XML parse error
 170                                 $out->wrapWikiMsg( "<p class=\"error\">\n$1\n</p>", array( 'importfailed', $exception->getMessage() ) );
 171                         } elseif( !$result->isGood() ) {
 172                                 # Zero revisions
 173                                 $out->wrapWikiMsg( "<p class=\"error\">\n$1\n</p>", array( 'importfailed', $result->getWikiText() ) );
 174                         } else {
 175                                 # Success!
 176                                 $out->addWikiMsg( 'importsuccess' );
 177                         }
 178                         $out->addHTML( '<hr />' );
 179                 }
 180         }
 181
 182         private function showForm() {
 183                 global $wgImportSources, $wgExportMaxLinkDepth;
 184
 185                 $action = $this->getTitle()->getLocalUrl( array( 'action' => 'submit' ) );
 186                 $user = $this->getUser();
 187                 $out = $this->getOutput();
 188
 189                 if( $user->isAllowed( 'importupload' ) ) {
 190                         $out->addHTML(
 191                                 Xml::fieldset( $this->msg( 'import-upload' )->text() ).
 192                                 Xml::openElement( 'form', array( 'enctype' => 'multipart/form-data', 'method' => 'post',
 193                                         'action' => $action, 'id' => 'mw-import-upload-form' ) ) .
 194                                 $this->msg( 'importtext' )->parseAsBlock() .
 195                                 Html::hidden( 'action', 'submit' ) .
 196                                 Html::hidden( 'source', 'upload' ) .
 197                                 Xml::openElement( 'table', array( 'id' => 'mw-import-table-upload' ) ) .
 198
 199                                 "<tr>
 200                                         <td class='mw-label'>" .
 201                                                 Xml::label( $this->msg( 'import-upload-filename' )->text(), 'xmlimport' ) .
 202                                         "</td>
 203                                         <td class='mw-input'>" .
 204                                                 Html::input( 'xmlimport', '', 'file', array( 'id' => 'xmlimport' ) ) . ' ' .
 205                                         "</td>
 206                                 </tr>
 207                                 <tr>
 208                                         <td class='mw-label'>" .
 209                                                 Xml::label( $this->msg( 'import-comment' )->text(), 'mw-import-comment' ) .
 210                                         "</td>
 211                                         <td class='mw-input'>" .
 212                                                 Xml::input( 'log-comment', 50, '',
 213                                                         array( 'id' => 'mw-import-comment', 'type' => 'text' ) ) . ' ' .
 214                                         "</td>
 215                                 </tr>
 216                                 <tr>
 217                                         <td class='mw-label'>" .
 218                                                 Xml::label( $this->msg( 'import-interwiki-rootpage' )->text(), 'mw-interwiki-rootpage-upload' ) .
 219                                         "</td>
 220                                         <td class='mw-input'>" .
 221                                                 Xml::input( 'rootpage', 50, $this->rootpage,
 222                                                         array( 'id' => 'mw-interwiki-rootpage-upload', 'type' => 'text' ) ) . ' ' .
 223                                         "</td>
 224                                 </tr>
 225                                 <tr>
 226                                         <td></td>
 227                                         <td class='mw-submit'>" .
 228                                                 Xml::submitButton( $this->msg( 'uploadbtn' )->text() ) .
 229                                         "</td>
 230                                 </tr>" .
 231                                 Xml::closeElement( 'table' ).
 232                                 Html::hidden( 'editToken', $user->getEditToken() ) .
 233                                 Xml::closeElement( 'form' ) .
 234                                 Xml::closeElement( 'fieldset' )
 235                         );
 236                 } else {
 237                         if( empty( $wgImportSources ) ) {
 238                                 $out->addWikiMsg( 'importnosources' );
 239                         }
 240                 }
 241
 242                 if( $user->isAllowed( 'import' ) && !empty( $wgImportSources ) ) {
 243                         # Show input field for import depth only if $wgExportMaxLinkDepth > 0
 244                         $importDepth = '';
 245                         if( $wgExportMaxLinkDepth > 0 ) {
 246                                 $importDepth = "<tr>
 247                                                         <td class='mw-label'>" .
 248                                                                 $this->msg( 'export-pagelinks' )->parse() .
 249                                                         "</td>
 250                                                         <td class='mw-input'>" .
 251                                                                 Xml::input( 'pagelink-depth', 3, 0 ) .
 252                                                         "</td>
 253                                                 </tr>";
 254                         }
 255
 256                         $out->addHTML(
 257                                 Xml::fieldset( $this->msg( 'importinterwiki' )->text() ) .
 258                                 Xml::openElement( 'form', array( 'method' => 'post', 'action' => $action, 'id' => 'mw-import-interwiki-form' ) ) .
 259                                 $this->msg( 'import-interwiki-text' )->parseAsBlock() .
 260                                 Html::hidden( 'action', 'submit' ) .
 261                                 Html::hidden( 'source', 'interwiki' ) .
 262                                 Html::hidden( 'editToken', $user->getEditToken() ) .
 263                                 Xml::openElement( 'table', array( 'id' => 'mw-import-table-interwiki' ) ) .
 264                                 "<tr>
 265                                         <td class='mw-label'>" .
 266                                                 Xml::label( $this->msg( 'import-interwiki-source' )->text(), 'interwiki' ) .
 267                                         "</td>
 268                                         <td class='mw-input'>" .
 269                                                 Xml::openElement( 'select', array( 'name' => 'interwiki', 'id' => 'interwiki' ) )
 270                         );
 271                         foreach( $wgImportSources as $prefix ) {
 272                                 $selected = ( $this->interwiki === $prefix ) ? ' selected="selected"' : '';
 273                                 $out->addHTML( Xml::option( $prefix, $prefix, $selected ) );
 274                         }
 275
 276                         $out->addHTML(
 277                                                 Xml::closeElement( 'select' ) .
 278                                                 Xml::input( 'frompage', 50, $this->frompage, array( 'id' => 'frompage' ) ) .
 279                                         "</td>
 280                                 </tr>
 281                                 <tr>
 282                                         <td>
 283                                         </td>
 284                                         <td class='mw-input'>" .
 285                                                 Xml::checkLabel( $this->msg( 'import-interwiki-history' )->text(), 'interwikiHistory', 'interwikiHistory', $this->history ) .
 286                                         "</td>
 287                                 </tr>
 288                                 <tr>
 289                                         <td>
 290                                         </td>
 291                                         <td class='mw-input'>" .
 292                                                 Xml::checkLabel( $this->msg( 'import-interwiki-templates' )->text(), 'interwikiTemplates', 'interwikiTemplates', $this->includeTemplates ) .
 293                                         "</td>
 294                                 </tr>
 295                                 $importDepth
 296                                 <tr>
 297                                         <td class='mw-label'>" .
 298                                                 Xml::label( $this->msg( 'import-interwiki-namespace' )->text(), 'namespace' ) .
 299                                         "</td>
 300                                         <td class='mw-input'>" .
 301                                                 Html::namespaceSelector(
 302                                                         array(
 303                                                                 'selected' => $this->namespace,
 304                                                                 'all' => '',
 305                                                         ), array(
 306                                                                 'name'  => 'namespace',
 307                                                                 'id'    => 'namespace',
 308                                                                 'class' => 'namespaceselector',
 309                                                         )
 310                                                 ) .
 311                                         "</td>
 312                                 </tr>
 313                                 <tr>
 314                                         <td class='mw-label'>" .
 315                                                 Xml::label( $this->msg( 'import-comment' )->text(), 'mw-interwiki-comment' ) .
 316                                         "</td>
 317                                         <td class='mw-input'>" .
 318                                                 Xml::input( 'log-comment', 50, '',
 319                                                         array( 'id' => 'mw-interwiki-comment', 'type' => 'text' ) ) . ' ' .
 320                                         "</td>
 321                                 </tr>
 322                                 <tr>
 323                                         <td class='mw-label'>" .
 324                                                 Xml::label( $this->msg( 'import-interwiki-rootpage' )->text(), 'mw-interwiki-rootpage-interwiki' ) .
 325                                         "</td>
 326                                         <td class='mw-input'>" .
 327                                                 Xml::input( 'rootpage', 50, $this->rootpage,
 328                                                         array( 'id' => 'mw-interwiki-rootpage-interwiki', 'type' => 'text' ) ) . ' ' .
 329                                         "</td>
 330                                 </tr>
 331                                 <tr>
 332                                         <td>
 333                                         </td>
 334                                         <td class='mw-submit'>" .
 335                                                 Xml::submitButton( $this->msg( 'import-interwiki-submit' )->text(), Linker::tooltipAndAccesskeyAttribs( 'import' ) ) .
 336                                         "</td>
 337                                 </tr>" .
 338                                 Xml::closeElement( 'table' ).
 339                                 Xml::closeElement( 'form' ) .
 340                                 Xml::closeElement( 'fieldset' )
 341                         );
 342                 }
 343         }
 344 }
 345
 346 /**
 347  * Reporting callback
 348  * @ingroup SpecialPage
 349  */
 350 class ImportReporter extends ContextSource {
 351         private $reason=false;
 352         private $mOriginalLogCallback = null;
 353         private $mOriginalPageOutCallback = null;
 354         private $mLogItemCount = 0;
 355
 356         function __construct( $importer, $upload, $interwiki, $reason = false ) {
 357                 $this->mOriginalPageOutCallback =
 358                                 $importer->setPageOutCallback( array( $this, 'reportPage' ) );
 359                 $this->mOriginalLogCallback =
 360                         $importer->setLogItemCallback( array( $this, 'reportLogItem' ) );
 361                 $importer->setNoticeCallback( array( $this, 'reportNotice' ) );
 362                 $this->mPageCount = 0;
 363                 $this->mIsUpload = $upload;
 364                 $this->mInterwiki = $interwiki;
 365                 $this->reason = $reason;
 366         }
 367
 368         function open() {
 369                 $this->getOutput()->addHTML( "<ul>\n" );
 370         }
 371
 372         function reportNotice( $msg, array $params ) {
 373                 $this->getOutput()->addHTML( Html::element( 'li', array(), $this->msg( $msg, $params )->text() ) );
 374         }
 375
 376         function reportLogItem( /* ... */ ) {
 377                 $this->mLogItemCount++;
 378                 if ( is_callable( $this->mOriginalLogCallback ) ) {
 379                         call_user_func_array( $this->mOriginalLogCallback, func_get_args() );
 380                 }
 381         }
 382
 383         /**
 384          * @param Title $title
 385          * @param Title $origTitle
 386          * @param int $revisionCount
 387          * @param  $successCount
 388          * @param  $pageInfo
 389          * @return void
 390          */
 391         function reportPage( $title, $origTitle, $revisionCount, $successCount, $pageInfo ) {
 392                 $args = func_get_args();
 393                 call_user_func_array( $this->mOriginalPageOutCallback, $args );
 394
 395                 if ( $title === null ) {
 396                         # Invalid or non-importable title; a notice is already displayed
 397                         return;
 398                 }
 399
 400                 $this->mPageCount++;
 401
 402                 if( $successCount > 0 ) {
 403                         $this->getOutput()->addHTML( "<li>" . Linker::linkKnown( $title ) . " " .
 404                                 $this->msg( 'import-revision-count' )->numParams( $successCount )->escaped() .
 405                                 "</li>\n"
 406                         );
 407
 408                         $log = new LogPage( 'import' );
 409                         if( $this->mIsUpload ) {
 410                                 $detail = $this->msg( 'import-logentry-upload-detail' )->numParams(
 411                                         $successCount )->inContentLanguage()->text();
 412                                 if ( $this->reason ) {
 413                                         $detail .= $this->msg( 'colon-separator' )->inContentLanguage()->text() . $this->reason;
 414                                 }
 415                                 $log->addEntry( 'upload', $title, $detail );
 416                         } else {
 417                                 $interwiki = '[[:' . $this->mInterwiki . ':' .
 418                                         $origTitle->getPrefixedText() . ']]';
 419                                 $detail = $this->msg( 'import-logentry-interwiki-detail' )->numParams(
 420                                         $successCount )->params( $interwiki )->inContentLanguage()->text();
 421                                 if ( $this->reason ) {
 422                                         $detail .= $this->msg( 'colon-separator' )->inContentLanguage()->text() . $this->reason;
 423                                 }
 424                                 $log->addEntry( 'interwiki', $title, $detail );
 425                         }
 426
 427                         $comment = $detail; // quick
 428                         $dbw = wfGetDB( DB_MASTER );
 429                         $latest = $title->getLatestRevID();
 430                         $nullRevision = Revision::newNullRevision( $dbw, $title->getArticleID(), $comment, true );
 431                         if ( !is_null( $nullRevision ) ) {
 432                                 $nullRevision->insertOn( $dbw );
 433                                 $page = WikiPage::factory( $title );
 434                                 # Update page record
 435                                 $page->updateRevisionOn( $dbw, $nullRevision );
 436                                 wfRunHooks( 'NewRevisionFromEditComplete', array( $page, $nullRevision, $latest, $this->getUser() ) );
 437                         }
 438                 } else {
 439                         $this->getOutput()->addHTML( "<li>" . Linker::linkKnown( $title ) . " " .
 440                                 $this->msg( 'import-nonewrevisions' )->escaped() . "</li>\n" );
 441                 }
 442         }
 443
 444         function close() {
 445                 $out = $this->getOutput();
 446                 if ( $this->mLogItemCount > 0 ) {
 447                         $msg = $this->msg( 'imported-log-entries' )->numParams( $this->mLogItemCount )->parse();
 448                         $out->addHTML( Xml::tags( 'li', null, $msg ) );
 449                 } elseif( $this->mPageCount == 0 && $this->mLogItemCount == 0 ) {
 450                         $out->addHTML( "</ul>\n" );
 451                         return Status::newFatal( 'importnopages' );
 452                 }
 453                 $out->addHTML( "</ul>\n" );
 454
 455                 return Status::newGood( $this->mPageCount );
 456         }
 457 }