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