includes/specials/SpecialUpload.php

   1 <?php
   2 /**
   3  * Implements Special:Upload
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  * @ingroup Upload
  23  */
  24
  25 use MediaWiki\Linker\LinkRenderer;
  26 use MediaWiki\MediaWikiServices;
  27
  28 /**
  29  * Form for handling uploads and special page.
  30  *
  31  * @ingroup SpecialPage
  32  * @ingroup Upload
  33  */
  34 class SpecialUpload extends SpecialPage {
  35         /**
  36          * Get data POSTed through the form and assign them to the object
  37          * @param WebRequest $request Data posted.
  38          */
  39         public function __construct( $request = null ) {
  40                 parent::__construct( 'Upload', 'upload' );
  41         }
  42
  43         public function doesWrites() {
  44                 return true;
  45         }
  46
  47         /** Misc variables **/
  48
  49         /** @var WebRequest|FauxRequest The request this form is supposed to handle */
  50         public $mRequest;
  51         public $mSourceType;
  52
  53         /** @var UploadBase */
  54         public $mUpload;
  55
  56         /** @var LocalFile */
  57         public $mLocalFile;
  58         public $mUploadClicked;
  59
  60         /** User input variables from the "description" section **/
  61
  62         /** @var string The requested target file name */
  63         public $mDesiredDestName;
  64         public $mComment;
  65         public $mLicense;
  66
  67         /** User input variables from the root section **/
  68
  69         public $mIgnoreWarning;
  70         public $mWatchthis;
  71         public $mCopyrightStatus;
  72         public $mCopyrightSource;
  73
  74         /** Hidden variables **/
  75
  76         public $mDestWarningAck;
  77
  78         /** @var bool The user followed an "overwrite this file" link */
  79         public $mForReUpload;
  80
  81         /** @var bool The user clicked "Cancel and return to upload form" button */
  82         public $mCancelUpload;
  83         public $mTokenOk;
  84
  85         /** @var bool Subclasses can use this to determine whether a file was uploaded */
  86         public $mUploadSuccessful = false;
  87
  88         /** Text injection points for hooks not using HTMLForm **/
  89         public $uploadFormTextTop;
  90         public $uploadFormTextAfterSummary;
  91
  92         /**
  93          * Initialize instance variables from request and create an Upload handler
  94          */
  95         protected function loadRequest() {
  96                 $this->mRequest = $request = $this->getRequest();
  97                 $this->mSourceType = $request->getVal( 'wpSourceType', 'file' );
  98                 $this->mUpload = UploadBase::createFromRequest( $request );
  99                 $this->mUploadClicked = $request->wasPosted()
 100                         && ( $request->getCheck( 'wpUpload' )
 101                                 || $request->getCheck( 'wpUploadIgnoreWarning' ) );
 102
 103                 // Guess the desired name from the filename if not provided
 104                 $this->mDesiredDestName = $request->getText( 'wpDestFile' );
 105                 if ( !$this->mDesiredDestName && $request->getFileName( 'wpUploadFile' ) !== null ) {
 106                         $this->mDesiredDestName = $request->getFileName( 'wpUploadFile' );
 107                 }
 108                 $this->mLicense = $request->getText( 'wpLicense' );
 109
 110                 $this->mDestWarningAck = $request->getText( 'wpDestFileWarningAck' );
 111                 $this->mIgnoreWarning = $request->getCheck( 'wpIgnoreWarning' )
 112                         || $request->getCheck( 'wpUploadIgnoreWarning' );
 113                 $this->mWatchthis = $request->getBool( 'wpWatchthis' ) && $this->getUser()->isLoggedIn();
 114                 $this->mCopyrightStatus = $request->getText( 'wpUploadCopyStatus' );
 115                 $this->mCopyrightSource = $request->getText( 'wpUploadSource' );
 116
 117                 $this->mForReUpload = $request->getBool( 'wpForReUpload' ); // updating a file
 118
 119                 $commentDefault = '';
 120                 $commentMsg = wfMessage( 'upload-default-description' )->inContentLanguage();
 121                 if ( !$this->mForReUpload && !$commentMsg->isDisabled() ) {
 122                         $commentDefault = $commentMsg->plain();
 123                 }
 124                 $this->mComment = $request->getText( 'wpUploadDescription', $commentDefault );
 125
 126                 $this->mCancelUpload = $request->getCheck( 'wpCancelUpload' )
 127                         || $request->getCheck( 'wpReUpload' ); // b/w compat
 128
 129                 // If it was posted check for the token (no remote POST'ing with user credentials)
 130                 $token = $request->getVal( 'wpEditToken' );
 131                 $this->mTokenOk = $this->getUser()->matchEditToken( $token );
 132
 133                 $this->uploadFormTextTop = '';
 134                 $this->uploadFormTextAfterSummary = '';
 135         }
 136
 137         /**
 138          * This page can be shown if uploading is enabled.
 139          * Handle permission checking elsewhere in order to be able to show
 140          * custom error messages.
 141          *
 142          * @param User $user
 143          * @return bool
 144          */
 145         public function userCanExecute( User $user ) {
 146                 return UploadBase::isEnabled() && parent::userCanExecute( $user );
 147         }
 148
 149         /**
 150          * Special page entry point
 151          * @param string $par
 152          * @throws ErrorPageError
 153          * @throws Exception
 154          * @throws FatalError
 155          * @throws MWException
 156          * @throws PermissionsError
 157          * @throws ReadOnlyError
 158          * @throws UserBlockedError
 159          */
 160         public function execute( $par ) {
 161                 $this->useTransactionalTimeLimit();
 162
 163                 $this->setHeaders();
 164                 $this->outputHeader();
 165
 166                 # Check uploading enabled
 167                 if ( !UploadBase::isEnabled() ) {
 168                         throw new ErrorPageError( 'uploaddisabled', 'uploaddisabledtext' );
 169                 }
 170
 171                 $this->addHelpLink( 'Help:Managing files' );
 172
 173                 # Check permissions
 174                 $user = $this->getUser();
 175                 $permissionRequired = UploadBase::isAllowed( $user );
 176                 if ( $permissionRequired !== true ) {
 177                         throw new PermissionsError( $permissionRequired );
 178                 }
 179
 180                 # Check blocks
 181                 if ( $user->isBlocked() ) {
 182                         throw new UserBlockedError( $user->getBlock() );
 183                 }
 184
 185                 // Global blocks
 186                 if ( $user->isBlockedGlobally() ) {
 187                         throw new UserBlockedError( $user->getGlobalBlock() );
 188                 }
 189
 190                 # Check whether we actually want to allow changing stuff
 191                 $this->checkReadOnly();
 192
 193                 $this->loadRequest();
 194
 195                 # Unsave the temporary file in case this was a cancelled upload
 196                 if ( $this->mCancelUpload ) {
 197                         if ( !$this->unsaveUploadedFile() ) {
 198                                 # Something went wrong, so unsaveUploadedFile showed a warning
 199                                 return;
 200                         }
 201                 }
 202
 203                 # Process upload or show a form
 204                 if (
 205                         $this->mTokenOk && !$this->mCancelUpload &&
 206                         ( $this->mUpload && $this->mUploadClicked )
 207                 ) {
 208                         $this->processUpload();
 209                 } else {
 210                         # Backwards compatibility hook
 211                         // Avoid PHP 7.1 warning of passing $this by reference
 212                         $upload = $this;
 213                         if ( !Hooks::run( 'UploadForm:initial', [ &$upload ] ) ) {
 214                                 wfDebug( "Hook 'UploadForm:initial' broke output of the upload form\n" );
 215
 216                                 return;
 217                         }
 218                         $this->showUploadForm( $this->getUploadForm() );
 219                 }
 220
 221                 # Cleanup
 222                 if ( $this->mUpload ) {
 223                         $this->mUpload->cleanupTempFile();
 224                 }
 225         }
 226
 227         /**
 228          * Show the main upload form
 229          *
 230          * @param HTMLForm|string $form An HTMLForm instance or HTML string to show
 231          */
 232         protected function showUploadForm( $form ) {
 233                 # Add links if file was previously deleted
 234                 if ( $this->mDesiredDestName ) {
 235                         $this->showViewDeletedLinks();
 236                 }
 237
 238                 if ( $form instanceof HTMLForm ) {
 239                         $form->show();
 240                 } else {
 241                         $this->getOutput()->addHTML( $form );
 242                 }
 243         }
 244
 245         /**
 246          * Get an UploadForm instance with title and text properly set.
 247          *
 248          * @param string $message HTML string to add to the form
 249          * @param string $sessionKey Session key in case this is a stashed upload
 250          * @param bool $hideIgnoreWarning Whether to hide "ignore warning" check box
 251          * @return UploadForm
 252          */
 253         protected function getUploadForm( $message = '', $sessionKey = '', $hideIgnoreWarning = false ) {
 254                 # Initialize form
 255                 $context = new DerivativeContext( $this->getContext() );
 256                 $context->setTitle( $this->getPageTitle() ); // Remove subpage
 257                 $form = new UploadForm( [
 258                         'watch' => $this->getWatchCheck(),
 259                         'forreupload' => $this->mForReUpload,
 260                         'sessionkey' => $sessionKey,
 261                         'hideignorewarning' => $hideIgnoreWarning,
 262                         'destwarningack' => (bool)$this->mDestWarningAck,
 263
 264                         'description' => $this->mComment,
 265                         'texttop' => $this->uploadFormTextTop,
 266                         'textaftersummary' => $this->uploadFormTextAfterSummary,
 267                         'destfile' => $this->mDesiredDestName,
 268                 ], $context, $this->getLinkRenderer() );
 269
 270                 # Check the token, but only if necessary
 271                 if (
 272                         !$this->mTokenOk && !$this->mCancelUpload &&
 273                         ( $this->mUpload && $this->mUploadClicked )
 274                 ) {
 275                         $form->addPreText( $this->msg( 'session_fail_preview' )->parse() );
 276                 }
 277
 278                 # Give a notice if the user is uploading a file that has been deleted or moved
 279                 # Note that this is independent from the message 'filewasdeleted'
 280                 $desiredTitleObj = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 281                 $delNotice = ''; // empty by default
 282                 if ( $desiredTitleObj instanceof Title && !$desiredTitleObj->exists() ) {
 283                         $dbr = wfGetDB( DB_REPLICA );
 284
 285                         LogEventsList::showLogExtract( $delNotice, [ 'delete', 'move' ],
 286                                 $desiredTitleObj,
 287                                 '', [ 'lim' => 10,
 288                                         'conds' => [ 'log_action != ' . $dbr->addQuotes( 'revision' ) ],
 289                                         'showIfEmpty' => false,
 290                                         'msgKey' => [ 'upload-recreate-warning' ] ]
 291                         );
 292                 }
 293                 $form->addPreText( $delNotice );
 294
 295                 # Add text to form
 296                 $form->addPreText( '<div id="uploadtext">' .
 297                         $this->msg( 'uploadtext', [ $this->mDesiredDestName ] )->parseAsBlock() .
 298                         '</div>' );
 299                 # Add upload error message
 300                 $form->addPreText( $message );
 301
 302                 # Add footer to form
 303                 $uploadFooter = $this->msg( 'uploadfooter' );
 304                 if ( !$uploadFooter->isDisabled() ) {
 305                         $form->addPostText( '<div id="mw-upload-footer-message">'
 306                                 . $uploadFooter->parseAsBlock() . "</div>\n" );
 307                 }
 308
 309                 return $form;
 310         }
 311
 312         /**
 313          * Shows the "view X deleted revivions link""
 314          */
 315         protected function showViewDeletedLinks() {
 316                 $title = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 317                 $user = $this->getUser();
 318                 // Show a subtitle link to deleted revisions (to sysops et al only)
 319                 if ( $title instanceof Title ) {
 320                         $count = $title->isDeleted();
 321                         if ( $count > 0 && $user->isAllowed( 'deletedhistory' ) ) {
 322                                 $restorelink = $this->getLinkRenderer()->makeKnownLink(
 323                                         SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedText() ),
 324                                         $this->msg( 'restorelink' )->numParams( $count )->text()
 325                                 );
 326                                 $link = $this->msg( $user->isAllowed( 'delete' ) ? 'thisisdeleted' : 'viewdeleted' )
 327                                         ->rawParams( $restorelink )->parseAsBlock();
 328                                 $this->getOutput()->addHTML( "<div id=\"contentSub2\">{$link}</div>" );
 329                         }
 330                 }
 331         }
 332
 333         /**
 334          * Stashes the upload and shows the main upload form.
 335          *
 336          * Note: only errors that can be handled by changing the name or
 337          * description should be redirected here. It should be assumed that the
 338          * file itself is sane and has passed UploadBase::verifyFile. This
 339          * essentially means that UploadBase::VERIFICATION_ERROR and
 340          * UploadBase::EMPTY_FILE should not be passed here.
 341          *
 342          * @param string $message HTML message to be passed to mainUploadForm
 343          */
 344         protected function showRecoverableUploadError( $message ) {
 345                 $stashStatus = $this->mUpload->tryStashFile( $this->getUser() );
 346                 if ( $stashStatus->isGood() ) {
 347                         $sessionKey = $stashStatus->getValue()->getFileKey();
 348                 } else {
 349                         $sessionKey = null;
 350                         // TODO Add a warning message about the failure to stash here?
 351                 }
 352                 $message = '<h2>' . $this->msg( 'uploaderror' )->escaped() . "</h2>\n" .
 353                         '<div class="error">' . $message . "</div>\n";
 354
 355                 $form = $this->getUploadForm( $message, $sessionKey );
 356                 $form->setSubmitText( $this->msg( 'upload-tryagain' )->escaped() );
 357                 $this->showUploadForm( $form );
 358         }
 359
 360         /**
 361          * Stashes the upload, shows the main form, but adds a "continue anyway button".
 362          * Also checks whether there are actually warnings to display.
 363          *
 364          * @param array $warnings
 365          * @return bool True if warnings were displayed, false if there are no
 366          *   warnings and it should continue processing
 367          */
 368         protected function showUploadWarning( $warnings ) {
 369                 # If there are no warnings, or warnings we can ignore, return early.
 370                 # mDestWarningAck is set when some javascript has shown the warning
 371                 # to the user. mForReUpload is set when the user clicks the "upload a
 372                 # new version" link.
 373                 if ( !$warnings || ( count( $warnings ) == 1
 374                         && isset( $warnings['exists'] )
 375                         && ( $this->mDestWarningAck || $this->mForReUpload ) )
 376                 ) {
 377                         return false;
 378                 }
 379
 380                 $stashStatus = $this->mUpload->tryStashFile( $this->getUser() );
 381                 if ( $stashStatus->isGood() ) {
 382                         $sessionKey = $stashStatus->getValue()->getFileKey();
 383                 } else {
 384                         $sessionKey = null;
 385                         // TODO Add a warning message about the failure to stash here?
 386                 }
 387
 388                 // Add styles for the warning, reused from the live preview
 389                 $this->getOutput()->addModuleStyles( 'mediawiki.special.upload.styles' );
 390
 391                 $linkRenderer = $this->getLinkRenderer();
 392                 $warningHtml = '<h2>' . $this->msg( 'uploadwarning' )->escaped() . "</h2>\n"
 393                         . '<div class="mw-destfile-warning"><ul>';
 394                 foreach ( $warnings as $warning => $args ) {
 395                         if ( $warning == 'badfilename' ) {
 396                                 $this->mDesiredDestName = Title::makeTitle( NS_FILE, $args )->getText();
 397                         }
 398                         if ( $warning == 'exists' ) {
 399                                 $msg = "\t<li>" . self::getExistsWarning( $args ) . "</li>\n";
 400                         } elseif ( $warning == 'no-change' ) {
 401                                 $file = $args;
 402                                 $filename = $file->getTitle()->getPrefixedText();
 403                                 $msg = "\t<li>" . wfMessage( 'fileexists-no-change', $filename )->parse() . "</li>\n";
 404                         } elseif ( $warning == 'duplicate-version' ) {
 405                                 $file = $args[0];
 406                                 $count = count( $args );
 407                                 $filename = $file->getTitle()->getPrefixedText();
 408                                 $message = wfMessage( 'fileexists-duplicate-version' )
 409                                         ->params( $filename )
 410                                         ->numParams( $count );
 411                                 $msg = "\t<li>" . $message->parse() . "</li>\n";
 412                         } elseif ( $warning == 'was-deleted' ) {
 413                                 # If the file existed before and was deleted, warn the user of this
 414                                 $ltitle = SpecialPage::getTitleFor( 'Log' );
 415                                 $llink = $linkRenderer->makeKnownLink(
 416                                         $ltitle,
 417                                         wfMessage( 'deletionlog' )->text(),
 418                                         [],
 419                                         [
 420                                                 'type' => 'delete',
 421                                                 'page' => Title::makeTitle( NS_FILE, $args )->getPrefixedText(),
 422                                         ]
 423                                 );
 424                                 $msg = "\t<li>" . wfMessage( 'filewasdeleted' )->rawParams( $llink )->parse() . "</li>\n";
 425                         } elseif ( $warning == 'duplicate' ) {
 426                                 $msg = $this->getDupeWarning( $args );
 427                         } elseif ( $warning == 'duplicate-archive' ) {
 428                                 if ( $args === '' ) {
 429                                         $msg = "\t<li>" . $this->msg( 'file-deleted-duplicate-notitle' )->parse()
 430                                                 . "</li>\n";
 431                                 } else {
 432                                         $msg = "\t<li>" . $this->msg( 'file-deleted-duplicate',
 433                                                         Title::makeTitle( NS_FILE, $args )->getPrefixedText() )->parse()
 434                                                 . "</li>\n";
 435                                 }
 436                         } else {
 437                                 if ( $args === true ) {
 438                                         $args = [];
 439                                 } elseif ( !is_array( $args ) ) {
 440                                         $args = [ $args ];
 441                                 }
 442                                 $msg = "\t<li>" . $this->msg( $warning, $args )->parse() . "</li>\n";
 443                         }
 444                         $warningHtml .= $msg;
 445                 }
 446                 $warningHtml .= "</ul></div>\n";
 447                 $warningHtml .= $this->msg( 'uploadwarning-text' )->parseAsBlock();
 448
 449                 $form = $this->getUploadForm( $warningHtml, $sessionKey, /* $hideIgnoreWarning */ true );
 450                 $form->setSubmitText( $this->msg( 'upload-tryagain' )->text() );
 451                 $form->addButton( [
 452                         'name' => 'wpUploadIgnoreWarning',
 453                         'value' => $this->msg( 'ignorewarning' )->text()
 454                 ] );
 455                 $form->addButton( [
 456                         'name' => 'wpCancelUpload',
 457                         'value' => $this->msg( 'reuploaddesc' )->text()
 458                 ] );
 459
 460                 $this->showUploadForm( $form );
 461
 462                 # Indicate that we showed a form
 463                 return true;
 464         }
 465
 466         /**
 467          * Show the upload form with error message, but do not stash the file.
 468          *
 469          * @param string $message HTML string
 470          */
 471         protected function showUploadError( $message ) {
 472                 $message = '<h2>' . $this->msg( 'uploadwarning' )->escaped() . "</h2>\n" .
 473                         '<div class="error">' . $message . "</div>\n";
 474                 $this->showUploadForm( $this->getUploadForm( $message ) );
 475         }
 476
 477         /**
 478          * Do the upload.
 479          * Checks are made in SpecialUpload::execute()
 480          */
 481         protected function processUpload() {
 482                 // Fetch the file if required
 483                 $status = $this->mUpload->fetchFile();
 484                 if ( !$status->isOK() ) {
 485                         $this->showUploadError( $this->getOutput()->parse( $status->getWikiText() ) );
 486
 487                         return;
 488                 }
 489                 // Avoid PHP 7.1 warning of passing $this by reference
 490                 $upload = $this;
 491                 if ( !Hooks::run( 'UploadForm:BeforeProcessing', [ &$upload ] ) ) {
 492                         wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file.\n" );
 493                         // This code path is deprecated. If you want to break upload processing
 494                         // do so by hooking into the appropriate hooks in UploadBase::verifyUpload
 495                         // and UploadBase::verifyFile.
 496                         // If you use this hook to break uploading, the user will be returned
 497                         // an empty form with no error message whatsoever.
 498                         return;
 499                 }
 500
 501                 // Upload verification
 502                 $details = $this->mUpload->verifyUpload();
 503                 if ( $details['status'] != UploadBase::OK ) {
 504                         $this->processVerificationError( $details );
 505
 506                         return;
 507                 }
 508
 509                 // Verify permissions for this title
 510                 $permErrors = $this->mUpload->verifyTitlePermissions( $this->getUser() );
 511                 if ( $permErrors !== true ) {
 512                         $code = array_shift( $permErrors[0] );
 513                         $this->showRecoverableUploadError( $this->msg( $code, $permErrors[0] )->parse() );
 514
 515                         return;
 516                 }
 517
 518                 $this->mLocalFile = $this->mUpload->getLocalFile();
 519
 520                 // Check warnings if necessary
 521                 if ( !$this->mIgnoreWarning ) {
 522                         $warnings = $this->mUpload->checkWarnings();
 523                         if ( $this->showUploadWarning( $warnings ) ) {
 524                                 return;
 525                         }
 526                 }
 527
 528                 // This is as late as we can throttle, after expected issues have been handled
 529                 if ( UploadBase::isThrottled( $this->getUser() ) ) {
 530                         $this->showRecoverableUploadError(
 531                                 $this->msg( 'actionthrottledtext' )->escaped()
 532                         );
 533                         return;
 534                 }
 535
 536                 // Get the page text if this is not a reupload
 537                 if ( !$this->mForReUpload ) {
 538                         $pageText = self::getInitialPageText( $this->mComment, $this->mLicense,
 539                                 $this->mCopyrightStatus, $this->mCopyrightSource, $this->getConfig() );
 540                 } else {
 541                         $pageText = false;
 542                 }
 543
 544                 $changeTags = $this->getRequest()->getVal( 'wpChangeTags' );
 545                 if ( is_null( $changeTags ) || $changeTags === '' ) {
 546                         $changeTags = [];
 547                 } else {
 548                         $changeTags = array_filter( array_map( 'trim', explode( ',', $changeTags ) ) );
 549                 }
 550
 551                 if ( $changeTags ) {
 552                         $changeTagsStatus = ChangeTags::canAddTagsAccompanyingChange(
 553                                 $changeTags, $this->getUser() );
 554                         if ( !$changeTagsStatus->isOK() ) {
 555                                 $this->showUploadError( $this->getOutput()->parse( $changeTagsStatus->getWikiText() ) );
 556
 557                                 return;
 558                         }
 559                 }
 560
 561                 $status = $this->mUpload->performUpload(
 562                         $this->mComment,
 563                         $pageText,
 564                         $this->mWatchthis,
 565                         $this->getUser(),
 566                         $changeTags
 567                 );
 568
 569                 if ( !$status->isGood() ) {
 570                         $this->showRecoverableUploadError( $this->getOutput()->parse( $status->getWikiText() ) );
 571
 572                         return;
 573                 }
 574
 575                 // Success, redirect to description page
 576                 $this->mUploadSuccessful = true;
 577                 // Avoid PHP 7.1 warning of passing $this by reference
 578                 $upload = $this;
 579                 Hooks::run( 'SpecialUploadComplete', [ &$upload ] );
 580                 $this->getOutput()->redirect( $this->mLocalFile->getTitle()->getFullURL() );
 581         }
 582
 583         /**
 584          * Get the initial image page text based on a comment and optional file status information
 585          * @param string $comment
 586          * @param string $license
 587          * @param string $copyStatus
 588          * @param string $source
 589          * @param Config $config Configuration object to load data from
 590          * @return string
 591          */
 592         public static function getInitialPageText( $comment = '', $license = '',
 593                 $copyStatus = '', $source = '', Config $config = null
 594         ) {
 595                 if ( $config === null ) {
 596                         wfDebug( __METHOD__ . ' called without a Config instance passed to it' );
 597                         $config = MediaWikiServices::getInstance()->getMainConfig();
 598                 }
 599
 600                 $msg = [];
 601                 $forceUIMsgAsContentMsg = (array)$config->get( 'ForceUIMsgAsContentMsg' );
 602                 /* These messages are transcluded into the actual text of the description page.
 603                  * Thus, forcing them as content messages makes the upload to produce an int: template
 604                  * instead of hardcoding it there in the uploader language.
 605                  */
 606                 foreach ( [ 'license-header', 'filedesc', 'filestatus', 'filesource' ] as $msgName ) {
 607                         if ( in_array( $msgName, $forceUIMsgAsContentMsg ) ) {
 608                                 $msg[$msgName] = "{{int:$msgName}}";
 609                         } else {
 610                                 $msg[$msgName] = wfMessage( $msgName )->inContentLanguage()->text();
 611                         }
 612                 }
 613
 614                 if ( $config->get( 'UseCopyrightUpload' ) ) {
 615                         $licensetxt = '';
 616                         if ( $license != '' ) {
 617                                 $licensetxt = '== ' . $msg['license-header'] . " ==\n" . '{{' . $license . '}}' . "\n";
 618                         }
 619                         $pageText = '== ' . $msg['filedesc'] . " ==\n" . $comment . "\n" .
 620                                 '== ' . $msg['filestatus'] . " ==\n" . $copyStatus . "\n" .
 621                                 "$licensetxt" .
 622                                 '== ' . $msg['filesource'] . " ==\n" . $source;
 623                 } else {
 624                         if ( $license != '' ) {
 625                                 $filedesc = $comment == '' ? '' : '== ' . $msg['filedesc'] . " ==\n" . $comment . "\n";
 626                                         $pageText = $filedesc .
 627                                         '== ' . $msg['license-header'] . " ==\n" . '{{' . $license . '}}' . "\n";
 628                         } else {
 629                                 $pageText = $comment;
 630                         }
 631                 }
 632
 633                 return $pageText;
 634         }
 635
 636         /**
 637          * See if we should check the 'watch this page' checkbox on the form
 638          * based on the user's preferences and whether we're being asked
 639          * to create a new file or update an existing one.
 640          *
 641          * In the case where 'watch edits' is off but 'watch creations' is on,
 642          * we'll leave the box unchecked.
 643          *
 644          * Note that the page target can be changed *on the form*, so our check
 645          * state can get out of sync.
 646          * @return bool|string
 647          */
 648         protected function getWatchCheck() {
 649                 if ( $this->getUser()->getOption( 'watchdefault' ) ) {
 650                         // Watch all edits!
 651                         return true;
 652                 }
 653
 654                 $desiredTitleObj = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
 655                 if ( $desiredTitleObj instanceof Title && $this->getUser()->isWatched( $desiredTitleObj ) ) {
 656                         // Already watched, don't change that
 657                         return true;
 658                 }
 659
 660                 $local = wfLocalFile( $this->mDesiredDestName );
 661                 if ( $local && $local->exists() ) {
 662                         // We're uploading a new version of an existing file.
 663                         // No creation, so don't watch it if we're not already.
 664                         return false;
 665                 } else {
 666                         // New page should get watched if that's our option.
 667                         return $this->getUser()->getOption( 'watchcreations' ) ||
 668                                 $this->getUser()->getOption( 'watchuploads' );
 669                 }
 670         }
 671
 672         /**
 673          * Provides output to the user for a result of UploadBase::verifyUpload
 674          *
 675          * @param array $details Result of UploadBase::verifyUpload
 676          * @throws MWException
 677          */
 678         protected function processVerificationError( $details ) {
 679                 switch ( $details['status'] ) {
 680                         /** Statuses that only require name changing **/
 681                         case UploadBase::MIN_LENGTH_PARTNAME:
 682                                 $this->showRecoverableUploadError( $this->msg( 'minlength1' )->escaped() );
 683                                 break;
 684                         case UploadBase::ILLEGAL_FILENAME:
 685                                 $this->showRecoverableUploadError( $this->msg( 'illegalfilename',
 686                                         $details['filtered'] )->parse() );
 687                                 break;
 688                         case UploadBase::FILENAME_TOO_LONG:
 689                                 $this->showRecoverableUploadError( $this->msg( 'filename-toolong' )->escaped() );
 690                                 break;
 691                         case UploadBase::FILETYPE_MISSING:
 692                                 $this->showRecoverableUploadError( $this->msg( 'filetype-missing' )->parse() );
 693                                 break;
 694                         case UploadBase::WINDOWS_NONASCII_FILENAME:
 695                                 $this->showRecoverableUploadError( $this->msg( 'windows-nonascii-filename' )->parse() );
 696                                 break;
 697
 698                         /** Statuses that require reuploading **/
 699                         case UploadBase::EMPTY_FILE:
 700                                 $this->showUploadError( $this->msg( 'emptyfile' )->escaped() );
 701                                 break;
 702                         case UploadBase::FILE_TOO_LARGE:
 703                                 $this->showUploadError( $this->msg( 'largefileserver' )->escaped() );
 704                                 break;
 705                         case UploadBase::FILETYPE_BADTYPE:
 706                                 $msg = $this->msg( 'filetype-banned-type' );
 707                                 if ( isset( $details['blacklistedExt'] ) ) {
 708                                         $msg->params( $this->getLanguage()->commaList( $details['blacklistedExt'] ) );
 709                                 } else {
 710                                         $msg->params( $details['finalExt'] );
 711                                 }
 712                                 $extensions = array_unique( $this->getConfig()->get( 'FileExtensions' ) );
 713                                 $msg->params( $this->getLanguage()->commaList( $extensions ),
 714                                         count( $extensions ) );
 715
 716                                 // Add PLURAL support for the first parameter. This results
 717                                 // in a bit unlogical parameter sequence, but does not break
 718                                 // old translations
 719                                 if ( isset( $details['blacklistedExt'] ) ) {
 720                                         $msg->params( count( $details['blacklistedExt'] ) );
 721                                 } else {
 722                                         $msg->params( 1 );
 723                                 }
 724
 725                                 $this->showUploadError( $msg->parse() );
 726                                 break;
 727                         case UploadBase::VERIFICATION_ERROR:
 728                                 unset( $details['status'] );
 729                                 $code = array_shift( $details['details'] );
 730                                 $this->showUploadError( $this->msg( $code, $details['details'] )->parse() );
 731                                 break;
 732                         case UploadBase::HOOK_ABORTED:
 733                                 if ( is_array( $details['error'] ) ) { # allow hooks to return error details in an array
 734                                         $args = $details['error'];
 735                                         $error = array_shift( $args );
 736                                 } else {
 737                                         $error = $details['error'];
 738                                         $args = null;
 739                                 }
 740
 741                                 $this->showUploadError( $this->msg( $error, $args )->parse() );
 742                                 break;
 743                         default:
 744                                 throw new MWException( __METHOD__ . ": Unknown value `{$details['status']}`" );
 745                 }
 746         }
 747
 748         /**
 749          * Remove a temporarily kept file stashed by saveTempUploadedFile().
 750          *
 751          * @return bool Success
 752          */
 753         protected function unsaveUploadedFile() {
 754                 if ( !( $this->mUpload instanceof UploadFromStash ) ) {
 755                         return true;
 756                 }
 757                 $success = $this->mUpload->unsaveUploadedFile();
 758                 if ( !$success ) {
 759                         $this->getOutput()->showFileDeleteError( $this->mUpload->getTempPath() );
 760
 761                         return false;
 762                 } else {
 763                         return true;
 764                 }
 765         }
 766
 767         /*** Functions for formatting warnings ***/
 768
 769         /**
 770          * Formats a result of UploadBase::getExistsWarning as HTML
 771          * This check is static and can be done pre-upload via AJAX
 772          *
 773          * @param array $exists The result of UploadBase::getExistsWarning
 774          * @return string Empty string if there is no warning or an HTML fragment
 775          */
 776         public static function getExistsWarning( $exists ) {
 777                 if ( !$exists ) {
 778                         return '';
 779                 }
 780
 781                 $file = $exists['file'];
 782                 $filename = $file->getTitle()->getPrefixedText();
 783                 $warnMsg = null;
 784
 785                 if ( $exists['warning'] == 'exists' ) {
 786                         // Exact match
 787                         $warnMsg = wfMessage( 'fileexists', $filename );
 788                 } elseif ( $exists['warning'] == 'page-exists' ) {
 789                         // Page exists but file does not
 790                         $warnMsg = wfMessage( 'filepageexists', $filename );
 791                 } elseif ( $exists['warning'] == 'exists-normalized' ) {
 792                         $warnMsg = wfMessage( 'fileexists-extension', $filename,
 793                                 $exists['normalizedFile']->getTitle()->getPrefixedText() );
 794                 } elseif ( $exists['warning'] == 'thumb' ) {
 795                         // Swapped argument order compared with other messages for backwards compatibility
 796                         $warnMsg = wfMessage( 'fileexists-thumbnail-yes',
 797                                 $exists['thumbFile']->getTitle()->getPrefixedText(), $filename );
 798                 } elseif ( $exists['warning'] == 'thumb-name' ) {
 799                         // Image w/o '180px-' does not exists, but we do not like these filenames
 800                         $name = $file->getName();
 801                         $badPart = substr( $name, 0, strpos( $name, '-' ) + 1 );
 802                         $warnMsg = wfMessage( 'file-thumbnail-no', $badPart );
 803                 } elseif ( $exists['warning'] == 'bad-prefix' ) {
 804                         $warnMsg = wfMessage( 'filename-bad-prefix', $exists['prefix'] );
 805                 }
 806
 807                 return $warnMsg ? $warnMsg->title( $file->getTitle() )->parse() : '';
 808         }
 809
 810         /**
 811          * Construct a warning and a gallery from an array of duplicate files.
 812          * @param array $dupes
 813          * @return string
 814          */
 815         public function getDupeWarning( $dupes ) {
 816                 if ( !$dupes ) {
 817                         return '';
 818                 }
 819
 820                 $gallery = ImageGalleryBase::factory( false, $this->getContext() );
 821                 $gallery->setShowBytes( false );
 822                 $gallery->setShowDimensions( false );
 823                 foreach ( $dupes as $file ) {
 824                         $gallery->add( $file->getTitle() );
 825                 }
 826
 827                 return '<li>' .
 828                         $this->msg( 'file-exists-duplicate' )->numParams( count( $dupes ) )->parse() .
 829                         $gallery->toHTML() . "</li>\n";
 830         }
 831
 832         protected function getGroupName() {
 833                 return 'media';
 834         }
 835
 836         /**
 837          * Should we rotate images in the preview on Special:Upload.
 838          *
 839          * This controls js: mw.config.get( 'wgFileCanRotate' )
 840          *
 841          * @todo What about non-BitmapHandler handled files?
 842          */
 843         public static function rotationEnabled() {
 844                 $bitmapHandler = new BitmapHandler();
 845                 return $bitmapHandler->autoRotateEnabled();
 846         }
 847 }
 848
 849 /**
 850  * Sub class of HTMLForm that provides the form section of SpecialUpload
 851  */
 852 class UploadForm extends HTMLForm {
 853         protected $mWatch;
 854         protected $mForReUpload;
 855         protected $mSessionKey;
 856         protected $mHideIgnoreWarning;
 857         protected $mDestWarningAck;
 858         protected $mDestFile;
 859
 860         protected $mComment;
 861         protected $mTextTop;
 862         protected $mTextAfterSummary;
 863
 864         protected $mSourceIds;
 865
 866         protected $mMaxFileSize = [];
 867
 868         protected $mMaxUploadSize = [];
 869
 870         public function __construct( array $options = [], IContextSource $context = null,
 871                 LinkRenderer $linkRenderer = null
 872         ) {
 873                 if ( $context instanceof IContextSource ) {
 874                         $this->setContext( $context );
 875                 }
 876
 877                 if ( !$linkRenderer ) {
 878                         $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
 879                 }
 880
 881                 $this->mWatch = !empty( $options['watch'] );
 882                 $this->mForReUpload = !empty( $options['forreupload'] );
 883                 $this->mSessionKey = isset( $options['sessionkey'] ) ? $options['sessionkey'] : '';
 884                 $this->mHideIgnoreWarning = !empty( $options['hideignorewarning'] );
 885                 $this->mDestWarningAck = !empty( $options['destwarningack'] );
 886                 $this->mDestFile = isset( $options['destfile'] ) ? $options['destfile'] : '';
 887
 888                 $this->mComment = isset( $options['description'] ) ?
 889                         $options['description'] : '';
 890
 891                 $this->mTextTop = isset( $options['texttop'] )
 892                         ? $options['texttop'] : '';
 893
 894                 $this->mTextAfterSummary = isset( $options['textaftersummary'] )
 895                         ? $options['textaftersummary'] : '';
 896
 897                 $sourceDescriptor = $this->getSourceSection();
 898                 $descriptor = $sourceDescriptor
 899                         + $this->getDescriptionSection()
 900                         + $this->getOptionsSection();
 901
 902                 Hooks::run( 'UploadFormInitDescriptor', [ &$descriptor ] );
 903                 parent::__construct( $descriptor, $context, 'upload' );
 904
 905                 # Add a link to edit MediaWiki:Licenses
 906                 if ( $this->getUser()->isAllowed( 'editinterface' ) ) {
 907                         $this->getOutput()->addModuleStyles( 'mediawiki.special.upload.styles' );
 908                         $licensesLink = $linkRenderer->makeKnownLink(
 909                                 $this->msg( 'licenses' )->inContentLanguage()->getTitle(),
 910                                 $this->msg( 'licenses-edit' )->text(),
 911                                 [],
 912                                 [ 'action' => 'edit' ]
 913                         );
 914                         $editLicenses = '<p class="mw-upload-editlicenses">' . $licensesLink . '</p>';
 915                         $this->addFooterText( $editLicenses, 'description' );
 916                 }
 917
 918                 # Set some form properties
 919                 $this->setSubmitText( $this->msg( 'uploadbtn' )->text() );
 920                 $this->setSubmitName( 'wpUpload' );
 921                 # Used message keys: 'accesskey-upload', 'tooltip-upload'
 922                 $this->setSubmitTooltip( 'upload' );
 923                 $this->setId( 'mw-upload-form' );
 924
 925                 # Build a list of IDs for javascript insertion
 926                 $this->mSourceIds = [];
 927                 foreach ( $sourceDescriptor as $field ) {
 928                         if ( !empty( $field['id'] ) ) {
 929                                 $this->mSourceIds[] = $field['id'];
 930                         }
 931                 }
 932         }
 933
 934         /**
 935          * Get the descriptor of the fieldset that contains the file source
 936          * selection. The section is 'source'
 937          *
 938          * @return array Descriptor array
 939          */
 940         protected function getSourceSection() {
 941                 if ( $this->mSessionKey ) {
 942                         return [
 943                                 'SessionKey' => [
 944                                         'type' => 'hidden',
 945                                         'default' => $this->mSessionKey,
 946                                 ],
 947                                 'SourceType' => [
 948                                         'type' => 'hidden',
 949                                         'default' => 'Stash',
 950                                 ],
 951                         ];
 952                 }
 953
 954                 $canUploadByUrl = UploadFromUrl::isEnabled()
 955                         && ( UploadFromUrl::isAllowed( $this->getUser() ) === true )
 956                         && $this->getConfig()->get( 'CopyUploadsFromSpecialUpload' );
 957                 $radio = $canUploadByUrl;
 958                 $selectedSourceType = strtolower( $this->getRequest()->getText( 'wpSourceType', 'File' ) );
 959
 960                 $descriptor = [];
 961                 if ( $this->mTextTop ) {
 962                         $descriptor['UploadFormTextTop'] = [
 963                                 'type' => 'info',
 964                                 'section' => 'source',
 965                                 'default' => $this->mTextTop,
 966                                 'raw' => true,
 967                         ];
 968                 }
 969
 970                 $this->mMaxUploadSize['file'] = min(
 971                         UploadBase::getMaxUploadSize( 'file' ),
 972                         UploadBase::getMaxPhpUploadSize()
 973                 );
 974
 975                 $help = $this->msg( 'upload-maxfilesize',
 976                                 $this->getContext()->getLanguage()->formatSize( $this->mMaxUploadSize['file'] )
 977                         )->parse();
 978
 979                 // If the user can also upload by URL, there are 2 different file size limits.
 980                 // This extra message helps stress which limit corresponds to what.
 981                 if ( $canUploadByUrl ) {
 982                         $help .= $this->msg( 'word-separator' )->escaped();
 983                         $help .= $this->msg( 'upload_source_file' )->parse();
 984                 }
 985
 986                 $descriptor['UploadFile'] = [
 987                         'class' => 'UploadSourceField',
 988                         'section' => 'source',
 989                         'type' => 'file',
 990                         'id' => 'wpUploadFile',
 991                         'radio-id' => 'wpSourceTypeFile',
 992                         'label-message' => 'sourcefilename',
 993                         'upload-type' => 'File',
 994                         'radio' => &$radio,
 995                         'help' => $help,
 996                         'checked' => $selectedSourceType == 'file',
 997                 ];
 998
 999                 if ( $canUploadByUrl ) {
1000                         $this->mMaxUploadSize['url'] = UploadBase::getMaxUploadSize( 'url' );
1001                         $descriptor['UploadFileURL'] = [
1002                                 'class' => 'UploadSourceField',
1003                                 'section' => 'source',
1004                                 'id' => 'wpUploadFileURL',
1005                                 'radio-id' => 'wpSourceTypeurl',
1006                                 'label-message' => 'sourceurl',
1007                                 'upload-type' => 'url',
1008                                 'radio' => &$radio,
1009                                 'help' => $this->msg( 'upload-maxfilesize',
1010                                         $this->getContext()->getLanguage()->formatSize( $this->mMaxUploadSize['url'] )
1011                                 )->parse() .
1012                                         $this->msg( 'word-separator' )->escaped() .
1013                                         $this->msg( 'upload_source_url' )->parse(),
1014                                 'checked' => $selectedSourceType == 'url',
1015                         ];
1016                 }
1017                 Hooks::run( 'UploadFormSourceDescriptors', [ &$descriptor, &$radio, $selectedSourceType ] );
1018
1019                 $descriptor['Extensions'] = [
1020                         'type' => 'info',
1021                         'section' => 'source',
1022                         'default' => $this->getExtensionsMessage(),
1023                         'raw' => true,
1024                 ];
1025
1026                 return $descriptor;
1027         }
1028
1029         /**
1030          * Get the messages indicating which extensions are preferred and prohibitted.
1031          *
1032          * @return string HTML string containing the message
1033          */
1034         protected function getExtensionsMessage() {
1035                 # Print a list of allowed file extensions, if so configured.  We ignore
1036                 # MIME type here, it's incomprehensible to most people and too long.
1037                 $config = $this->getConfig();
1038
1039                 if ( $config->get( 'CheckFileExtensions' ) ) {
1040                         $fileExtensions = array_unique( $config->get( 'FileExtensions' ) );
1041                         if ( $config->get( 'StrictFileExtensions' ) ) {
1042                                 # Everything not permitted is banned
1043                                 $extensionsList =
1044                                         '<div id="mw-upload-permitted">' .
1045                                         $this->msg( 'upload-permitted' )
1046                                                 ->params( $this->getLanguage()->commaList( $fileExtensions ) )
1047                                                 ->numParams( count( $fileExtensions ) )
1048                                                 ->parseAsBlock() .
1049                                         "</div>\n";
1050                         } else {
1051                                 # We have to list both preferred and prohibited
1052                                 $fileBlacklist = array_unique( $config->get( 'FileBlacklist' ) );
1053                                 $extensionsList =
1054                                         '<div id="mw-upload-preferred">' .
1055                                                 $this->msg( 'upload-preferred' )
1056                                                         ->params( $this->getLanguage()->commaList( $fileExtensions ) )
1057                                                         ->numParams( count( $fileExtensions ) )
1058                                                         ->parseAsBlock() .
1059                                         "</div>\n" .
1060                                         '<div id="mw-upload-prohibited">' .
1061                                                 $this->msg( 'upload-prohibited' )
1062                                                         ->params( $this->getLanguage()->commaList( $fileBlacklist ) )
1063                                                         ->numParams( count( $fileBlacklist ) )
1064                                                         ->parseAsBlock() .
1065                                         "</div>\n";
1066                         }
1067                 } else {
1068                         # Everything is permitted.
1069                         $extensionsList = '';
1070                 }
1071
1072                 return $extensionsList;
1073         }
1074
1075         /**
1076          * Get the descriptor of the fieldset that contains the file description
1077          * input. The section is 'description'
1078          *
1079          * @return array Descriptor array
1080          */
1081         protected function getDescriptionSection() {
1082                 $config = $this->getConfig();
1083                 if ( $this->mSessionKey ) {
1084                         $stash = RepoGroup::singleton()->getLocalRepo()->getUploadStash( $this->getUser() );
1085                         try {
1086                                 $file = $stash->getFile( $this->mSessionKey );
1087                         } catch ( Exception $e ) {
1088                                 $file = null;
1089                         }
1090                         if ( $file ) {
1091                                 global $wgContLang;
1092
1093                                 $mto = $file->transform( [ 'width' => 120 ] );
1094                                 if ( $mto ) {
1095                                         $this->addHeaderText(
1096                                                 '<div class="thumb t' . $wgContLang->alignEnd() . '">' .
1097                                                 Html::element( 'img', [
1098                                                         'src' => $mto->getUrl(),
1099                                                         'class' => 'thumbimage',
1100                                                 ] ) . '</div>', 'description' );
1101                                 }
1102                         }
1103                 }
1104
1105                 $descriptor = [
1106                         'DestFile' => [
1107                                 'type' => 'text',
1108                                 'section' => 'description',
1109                                 'id' => 'wpDestFile',
1110                                 'label-message' => 'destfilename',
1111                                 'size' => 60,
1112                                 'default' => $this->mDestFile,
1113                                 # @todo FIXME: Hack to work around poor handling of the 'default' option in HTMLForm
1114                                 'nodata' => strval( $this->mDestFile ) !== '',
1115                         ],
1116                         'UploadDescription' => [
1117                                 'type' => 'textarea',
1118                                 'section' => 'description',
1119                                 'id' => 'wpUploadDescription',
1120                                 'label-message' => $this->mForReUpload
1121                                         ? 'filereuploadsummary'
1122                                         : 'fileuploadsummary',
1123                                 'default' => $this->mComment,
1124                                 'cols' => 80,
1125                                 'rows' => 8,
1126                         ]
1127                 ];
1128                 if ( $this->mTextAfterSummary ) {
1129                         $descriptor['UploadFormTextAfterSummary'] = [
1130                                 'type' => 'info',
1131                                 'section' => 'description',
1132                                 'default' => $this->mTextAfterSummary,
1133                                 'raw' => true,
1134                         ];
1135                 }
1136
1137                 $descriptor += [
1138                         'EditTools' => [
1139                                 'type' => 'edittools',
1140                                 'section' => 'description',
1141                                 'message' => 'edittools-upload',
1142                         ]
1143                 ];
1144
1145                 if ( $this->mForReUpload ) {
1146                         $descriptor['DestFile']['readonly'] = true;
1147                 } else {
1148                         $descriptor['License'] = [
1149                                 'type' => 'select',
1150                                 'class' => 'Licenses',
1151                                 'section' => 'description',
1152                                 'id' => 'wpLicense',
1153                                 'label-message' => 'license',
1154                         ];
1155                 }
1156
1157                 if ( $config->get( 'UseCopyrightUpload' ) ) {
1158                         $descriptor['UploadCopyStatus'] = [
1159                                 'type' => 'text',
1160                                 'section' => 'description',
1161                                 'id' => 'wpUploadCopyStatus',
1162                                 'label-message' => 'filestatus',
1163                         ];
1164                         $descriptor['UploadSource'] = [
1165                                 'type' => 'text',
1166                                 'section' => 'description',
1167                                 'id' => 'wpUploadSource',
1168                                 'label-message' => 'filesource',
1169                         ];
1170                 }
1171
1172                 return $descriptor;
1173         }
1174
1175         /**
1176          * Get the descriptor of the fieldset that contains the upload options,
1177          * such as "watch this file". The section is 'options'
1178          *
1179          * @return array Descriptor array
1180          */
1181         protected function getOptionsSection() {
1182                 $user = $this->getUser();
1183                 if ( $user->isLoggedIn() ) {
1184                         $descriptor = [
1185                                 'Watchthis' => [
1186                                         'type' => 'check',
1187                                         'id' => 'wpWatchthis',
1188                                         'label-message' => 'watchthisupload',
1189                                         'section' => 'options',
1190                                         'default' => $this->mWatch,
1191                                 ]
1192                         ];
1193                 }
1194                 if ( !$this->mHideIgnoreWarning ) {
1195                         $descriptor['IgnoreWarning'] = [
1196                                 'type' => 'check',
1197                                 'id' => 'wpIgnoreWarning',
1198                                 'label-message' => 'ignorewarnings',
1199                                 'section' => 'options',
1200                         ];
1201                 }
1202
1203                 $descriptor['DestFileWarningAck'] = [
1204                         'type' => 'hidden',
1205                         'id' => 'wpDestFileWarningAck',
1206                         'default' => $this->mDestWarningAck ? '1' : '',
1207                 ];
1208
1209                 if ( $this->mForReUpload ) {
1210                         $descriptor['ForReUpload'] = [
1211                                 'type' => 'hidden',
1212                                 'id' => 'wpForReUpload',
1213                                 'default' => '1',
1214                         ];
1215                 }
1216
1217                 return $descriptor;
1218         }
1219
1220         /**
1221          * Add the upload JS and show the form.
1222          */
1223         public function show() {
1224                 $this->addUploadJS();
1225                 parent::show();
1226         }
1227
1228         /**
1229          * Add upload JS to the OutputPage
1230          */
1231         protected function addUploadJS() {
1232                 $config = $this->getConfig();
1233
1234                 $useAjaxDestCheck = $config->get( 'UseAjax' ) && $config->get( 'AjaxUploadDestCheck' );
1235                 $useAjaxLicensePreview = $config->get( 'UseAjax' ) &&
1236                         $config->get( 'AjaxLicensePreview' ) && $config->get( 'EnableAPI' );
1237                 $this->mMaxUploadSize['*'] = UploadBase::getMaxUploadSize();
1238
1239                 $scriptVars = [
1240                         'wgAjaxUploadDestCheck' => $useAjaxDestCheck,
1241                         'wgAjaxLicensePreview' => $useAjaxLicensePreview,
1242                         'wgUploadAutoFill' => !$this->mForReUpload &&
1243                                 // If we received mDestFile from the request, don't autofill
1244                                 // the wpDestFile textbox
1245                                 $this->mDestFile === '',
1246                         'wgUploadSourceIds' => $this->mSourceIds,
1247                         'wgCheckFileExtensions' => $config->get( 'CheckFileExtensions' ),
1248                         'wgStrictFileExtensions' => $config->get( 'StrictFileExtensions' ),
1249                         'wgFileExtensions' => array_values( array_unique( $config->get( 'FileExtensions' ) ) ),
1250                         'wgCapitalizeUploads' => MWNamespace::isCapitalized( NS_FILE ),
1251                         'wgMaxUploadSize' => $this->mMaxUploadSize,
1252                         'wgFileCanRotate' => SpecialUpload::rotationEnabled(),
1253                 ];
1254
1255                 $out = $this->getOutput();
1256                 $out->addJsConfigVars( $scriptVars );
1257
1258                 $out->addModules( [
1259                         'mediawiki.action.edit', // For <charinsert> support
1260                         'mediawiki.special.upload', // Extras for thumbnail and license preview.
1261                 ] );
1262         }
1263
1264         /**
1265          * Empty function; submission is handled elsewhere.
1266          *
1267          * @return bool False
1268          */
1269         function trySubmit() {
1270                 return false;
1271         }
1272 }
1273
1274 /**
1275  * A form field that contains a radio box in the label
1276  */
1277 class UploadSourceField extends HTMLTextField {
1278
1279         /**
1280          * @param array $cellAttributes
1281          * @return string
1282          */
1283         function getLabelHtml( $cellAttributes = [] ) {
1284                 $id = $this->mParams['id'];
1285                 $label = Html::rawElement( 'label', [ 'for' => $id ], $this->mLabel );
1286
1287                 if ( !empty( $this->mParams['radio'] ) ) {
1288                         if ( isset( $this->mParams['radio-id'] ) ) {
1289                                 $radioId = $this->mParams['radio-id'];
1290                         } else {
1291                                 // Old way. For the benefit of extensions that do not define
1292                                 // the 'radio-id' key.
1293                                 $radioId = 'wpSourceType' . $this->mParams['upload-type'];
1294                         }
1295
1296                         $attribs = [
1297                                 'name' => 'wpSourceType',
1298                                 'type' => 'radio',
1299                                 'id' => $radioId,
1300                                 'value' => $this->mParams['upload-type'],
1301                         ];
1302
1303                         if ( !empty( $this->mParams['checked'] ) ) {
1304                                 $attribs['checked'] = 'checked';
1305                         }
1306
1307                         $label .= Html::element( 'input', $attribs );
1308                 }
1309
1310                 return Html::rawElement( 'td', [ 'class' => 'mw-label' ] + $cellAttributes, $label );
1311         }
1312
1313         /**
1314          * @return int
1315          */
1316         function getSize() {
1317                 return isset( $this->mParams['size'] )
1318                         ? $this->mParams['size']
1319                         : 60;
1320         }
1321 }