includes/SpecialUpload.php

   1 <?php
   2 /**
   3  *
   4  */
   5
   6 /**
   7  *
   8  */
   9 require_once( "Image.php" );
  10
  11 /**
  12  * Constructor
  13  */
  14 function wfSpecialUpload() {
  15         global $wgRequest;
  16         $form = new UploadForm( $wgRequest );
  17         $form->execute();
  18 }
  19
  20 /**
  21  *
  22  */
  23 class UploadForm {
  24         var $mUploadAffirm, $mUploadFile, $mUploadDescription, $mIgnoreWarning;
  25         var $mUploadSaveName, $mUploadTempName, $mUploadSize, $mUploadOldVersion;
  26         var $mUploadCopyStatus, $mUploadSource, $mReUpload, $mAction, $mUpload;
  27         var $mOname, $mSessionKey;
  28
  29         function UploadForm( &$request ) {
  30                 $this->mUploadAffirm = $request->getVal( 'wpUploadAffirm' );
  31                 $this->mUploadFile = $request->getVal( 'wpUploadFile' );
  32                 $this->mUploadDescription = $request->getVal( 'wpUploadDescription');
  33                 $this->mIgnoreWarning = $request->getVal( 'wpIgnoreWarning');
  34                 $this->mUploadSaveName = $request->getVal( 'wpUploadSaveName');
  35                 $this->mUploadTempName = $request->getVal( 'wpUploadTempName');
  36                 $this->mUploadTempName = $request->getVal( 'wpUploadTempName');
  37                 $this->mUploadSize = $request->getVal( 'wpUploadSize');
  38                 $this->mUploadOldVersion = $request->getVal( 'wpUploadOldVersion');
  39                 $this->mUploadCopyStatus = $request->getVal( 'wpUploadCopyStatus');
  40                 $this->mUploadSource = $request->getVal( 'wpUploadSource');
  41                 $this->mReUpload = $request->getCheck( 'wpReUpload' );
  42                 $this->mAction = $request->getVal( 'action' );
  43                 $this->mUpload = $request->getCheck( 'wpUpload' );
  44                 $this->mSessionKey = $request->getVal( 'wpSessionKey' );
  45
  46                 if ( ! $this->mUploadTempName ) {
  47                         $this->mUploadTempName = $request->getFileTempName( 'wpUploadFile' );
  48                 }
  49                 if ( ! $this->mUploadSize ) {
  50                         $this->mUploadSize = $request->getFileSize( 'wpUploadFile' );
  51                 }
  52                 $this->mOname = $request->getFileName( 'wpUploadFile' );
  53
  54         }
  55
  56         function execute() {
  57                 global $wgUser, $wgOut;
  58                 global $wgDisableUploads;
  59
  60                 if ( $wgDisableUploads ) {
  61                         $wgOut->addWikiText( wfMsg( "uploaddisabled" ) );
  62                         return;
  63                 }
  64                 if ( ( 0 == $wgUser->getID() )
  65                         or $wgUser->isBlocked() ) {
  66                         $wgOut->errorpage( "uploadnologin", "uploadnologintext" );
  67                         return;
  68                 }
  69                 if ( wfReadOnly() ) {
  70                         $wgOut->readOnlyPage();
  71                         return;
  72                 }
  73                 if ( $this->mReUpload ) {
  74                         $this->unsaveUploadedFile();
  75                         $this->mainUploadForm( "" );
  76                 } else if ( "submit" == $this->mAction || $this->mUpload ) {
  77                         $this->processUpload();
  78                 } else {
  79                         $this->mainUploadForm( "" );
  80                 }
  81         }
  82
  83
  84         function processUpload() {
  85                 global $wgUser, $wgOut, $wgLang;
  86                 global $wgUploadDirectory;
  87                 global $wgSavedFile, $wgUploadOldVersion;
  88                 global $wgUseCopyrightUpload, $wgCheckCopyrightUpload;
  89                 global $wgCheckFileExtensions, $wgStrictFileExtensions;
  90                 global $wgFileExtensions, $wgFileBlacklist, $wgUploadSizeWarning;
  91
  92                 if ( $wgUseCopyrightUpload ) {
  93                         $this->mUploadAffirm = 1;
  94                         if ($wgCheckCopyrightUpload &&
  95                                 (trim ( $this->mUploadCopyStatus ) == "" || trim ( $this->mUploadSource ) == "" )) {
  96                                 $this->mUploadAffirm = 0;
  97                         }
  98                 }
  99
 100                 if ( 1 != $this->mUploadAffirm ) {
 101                         $this->mainUploadForm( WfMsg( "noaffirmation" ) );
 102                         return;
 103                 }
 104
 105                 if ( "" != $this->mOname ) {
 106                         $basename = strrchr( $this->mOname, "/" );
 107
 108                         if ( false === $basename ) { $basename = $this->mOname; }
 109                         else ( $basename = substr( $basename, 1 ) );
 110
 111
 112                         $ext = strrchr( $basename, "." );
 113                         if ( false === $ext ) { $ext = ""; }
 114                         else { $ext = substr( $ext, 1 ); }
 115
 116                         if ( "" == $ext ) { $xl = 0; } else { $xl = strlen( $ext ) + 1; }
 117                         $partname = substr( $basename, 0, strlen( $basename ) - $xl );
 118
 119                         if ( strlen( $partname ) < 3 ) {
 120                                 $this->mainUploadForm( WfMsg( "minlength" ) );
 121                                 return;
 122                         }
 123
 124                         $changed_name = false;
 125                         $bn = preg_replace ( "/[^".Title::legalChars()."]/", '-', $basename );
 126                         if ( 0 != strcmp( $bn, $basename ) )
 127                         {
 128                                 $changed_name = true;
 129                                 $basename = $bn;
 130                         }
 131
 132
 133                         $nt = Title::newFromText( $basename );
 134                         if( !$nt ) {
 135                                 return $this->uploadError( wfMsg( "illegalfilename", htmlspecialchars( $basename ) ) );
 136                         }
 137                         $nt->setNamespace( Namespace::getImage() );
 138                         $this->mUploadSaveName = $nt->getDBkey();
 139
 140                         /* Don't allow users to override the blacklist */
 141                         if( $this->checkFileExtension( $ext, $wgFileBlacklist ) ||
 142                                 ($wgStrictFileExtensions && !$this->checkFileExtension( $ext, $wgFileExtensions ) ) ) {
 143                                 return $this->uploadError( wfMsg( "badfiletype", htmlspecialchars( $ext ) ) );
 144                         }
 145
 146                         $this->saveUploadedFile( $this->mUploadSaveName, $this->mUploadTempName );
 147                         if ( !$nt->userCanEdit() ) {
 148                                 return $this->uploadError( wfMsg( "protectedpage" ) );
 149                         }
 150
 151                         if ( ! $this->mIgnoreWarning ) {
 152                                 $warning = '';
 153                                 if( $changed_name || 0 != strcmp( ucfirst( $basename ), $this->mUploadSaveName ) ) {
 154                                         $warning .=  '<li>'.wfMsg( "badfilename", htmlspecialchars( $this->mUploadSaveName ) ).'</li>';
 155                                 }
 156
 157                                 if ( $wgCheckFileExtensions ) {
 158                                         if ( ! $this->checkFileExtension( $ext, $wgFileExtensions ) ) {
 159                                                 $warning .= '<li>'.wfMsg( "badfiletype", htmlspecialchars( $ext ) ).'</li>';
 160                                         }
 161                                 }
 162                                 if ( $wgUploadSizeWarning && ( $this->mUploadSize > $wgUploadSizeWarning ) ) {
 163                                         $warning .= '<li>'.wfMsg( "largefile" ).'</li>';
 164                                 }
 165                                 if ( $this->mUploadSize == 0 ) {
 166                                         $warning .= '<li>'.wfMsg( "emptyfile" ).'</li>';
 167                                 }
 168                                 if( $nt->getArticleID() ) {
 169                                         $sk = $wgUser->getSkin();
 170                                         $dname = $wgLang->getNsText( Namespace::getImage() ) . ":{$this->mUploadSaveName}";
 171                                         $dlink = $sk->makeKnownLink( $dname, $dname );
 172                                         $warning .= '<li>'.wfMsg( "fileexists", $dlink ).'</li>';
 173                                 }
 174                                 if($warning != '') return $this->uploadWarning($warning);
 175                         }
 176                 }
 177                 if ( !is_null( $this->mUploadOldVersion ) ) {
 178                         $wgUploadOldVersion = $this->mUploadOldVersion;
 179                 }
 180                 wfRecordUpload( $this->mUploadSaveName, $wgUploadOldVersion, $this->mUploadSize,
 181                   $this->mUploadDescription, $this->mUploadCopyStatus, $this->mUploadSource );
 182
 183                 $sk = $wgUser->getSkin();
 184                 $ilink = $sk->makeMediaLink( $this->mUploadSaveName, Image::wfImageUrl( $this->mUploadSaveName ) );
 185                 $dname = $wgLang->getNsText( Namespace::getImage() ) . ":{$this->mUploadSaveName}";
 186                 $dlink = $sk->makeKnownLink( $dname, $dname );
 187
 188                 $wgOut->addHTML( "<h2>" . wfMsg( "successfulupload" ) . "</h2>\n" );
 189                 $text = wfMsg( "fileuploaded", $ilink, $dlink );
 190                 $wgOut->addHTML( "<p>{$text}\n" );
 191                 $wgOut->returnToMain( false );
 192         }
 193
 194         function checkFileExtension( $ext, $list ) {
 195                 return in_array( strtolower( $ext ), $list );
 196         }
 197
 198         function saveUploadedFile( $saveName, $tempName ) {
 199                 global $wgSavedFile, $wgUploadOldVersion;
 200                 global $wgUploadDirectory, $wgOut;
 201
 202                 $dest = wfImageDir( $saveName );
 203                 $archive = wfImageArchiveDir( $saveName );
 204                 $wgSavedFile = "{$dest}/{$saveName}";
 205
 206                 if ( is_file( $wgSavedFile ) ) {
 207                         $wgUploadOldVersion = gmdate( "YmdHis" ) . "!{$saveName}";
 208
 209                         if ( ! rename( $wgSavedFile, "${archive}/{$wgUploadOldVersion}" ) ) {
 210                                 $wgOut->fileRenameError( $wgSavedFile,
 211                                   "${archive}/{$wgUploadOldVersion}" );
 212                                 return;
 213                         }
 214                 } else {
 215                         $wgUploadOldVersion = "";
 216                 }
 217                 if ( ! move_uploaded_file( $tempName, $wgSavedFile ) ) {
 218                         $wgOut->fileCopyError( $tempName, $wgSavedFile );
 219                 }
 220                 chmod( $wgSavedFile, 0644 );
 221         }
 222
 223         function unsaveUploadedFile() {
 224                 global $wgUploadDirectory, $wgOut, $wgRequest;
 225
 226                 $wgSavedFile = $_SESSION['wsUploadFiles'][$this->mSessionKey];
 227                 $wgUploadOldVersion = $this->mUploadOldVersion;
 228
 229                 if ( ! @unlink( $wgSavedFile ) ) {
 230                         $wgOut->fileDeleteError( $wgSavedFile );
 231                         return;
 232                 }
 233                 if ( "" != $wgUploadOldVersion ) {
 234                         $hash = md5( substr( $wgUploadOldVersion, 15 ) );
 235                         $archive = "{$wgUploadDirectory}/archive/" . $hash{0} .
 236                         "/" . substr( $hash, 0, 2 );
 237
 238                         if ( ! rename( "{$archive}/{$wgUploadOldVersion}", $wgSavedFile ) ) {
 239                                 $wgOut->fileRenameError( "{$archive}/{$wgUploadOldVersion}",
 240                                   $wgSavedFile );
 241                         }
 242                 }
 243         }
 244
 245         function uploadError( $error ) {
 246                 global $wgOut;
 247                 $sub = wfMsg( "uploadwarning" );
 248                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 249                 $wgOut->addHTML( "<h4 style='error'>{$error}</h4>\n" );
 250         }
 251
 252         function uploadWarning( $warning ) {
 253                 global $wgOut, $wgUser, $wgLang, $wgUploadDirectory, $wgRequest;
 254                 global $wgSavedFile, $wgUploadOldVersion;
 255                 global $wgUseCopyrightUpload;
 256
 257                 # wgSavedFile is stored in the session not the form, for security
 258                 $this->mSessionKey = mt_rand( 0, 0x7fffffff );
 259                 $_SESSION['wsUploadFiles'][$this->mSessionKey] = $wgSavedFile;
 260
 261                 $sub = wfMsg( "uploadwarning" );
 262                 $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 263                 $wgOut->addHTML( "<ul class='warning'>{$warning}</ul><br/>\n" );
 264
 265                 $save = wfMsg( "savefile" );
 266                 $reupload = wfMsg( "reupload" );
 267                 $iw = wfMsg( "ignorewarning" );
 268                 $reup = wfMsg( "reuploaddesc" );
 269                 $titleObj = Title::makeTitle( NS_SPECIAL, "Upload" );
 270                 $action = $titleObj->escapeLocalURL( "action=submit" );
 271
 272                 if ( $wgUseCopyrightUpload )
 273                 {
 274                         $copyright =  "
 275         <input type='hidden' name=\"wpUploadCopyStatus\" value=\"" . htmlspecialchars( $this->mUploadCopyStatus ) . "\" />
 276         <input type='hidden' name=\"wpUploadSource\" value=\"" . htmlspecialchars( $this->mUploadSource ) . "\" />
 277         ";
 278                 } else {
 279                         $copyright = "";
 280                 }
 281
 282                 $wgOut->addHTML( "
 283         <form id=\"uploadwarning\" method=\"post\" enctype=\"multipart/form-data\"
 284         action=\"{$action}\">
 285         <input type=hidden name=\"wpUploadAffirm\" value=\"1\" />
 286         <input type=hidden name=\"wpIgnoreWarning\" value=\"1\" />
 287         <input type=hidden name=\"wpUploadDescription\" value=\"" . htmlspecialchars( $this->mUploadDescription ) . "\" />
 288         {$copyright}
 289         <input type=hidden name=\"wpUploadSaveName\" value=\"" . htmlspecialchars( $this->mUploadSaveName ) . "\" />
 290         <input type=hidden name=\"wpUploadTempName\" value=\"" . htmlspecialchars( $this->mUploadTempName ) . "\" />
 291         <input type=hidden name=\"wpUploadSize\" value=\"" . htmlspecialchars( $this->mUploadSize ) . "\" />
 292         <input type=hidden name=\"wpSessionKey\" value=\"" . htmlspecialchars( $this->mSessionKey ) . "\" />
 293         <input type=hidden name=\"wpUploadOldVersion\" value=\"" . htmlspecialchars( $wgUploadOldVersion) . "\" />
 294         <table border='0'><tr>
 295         <tr><td align='right'>
 296         <input tabindex='2' type='submit' name=\"wpUpload\" value=\"{$save}\" />
 297         </td><td align='left'>{$iw}</td></tr>
 298         <tr><td align='right'>
 299         <input tabindex='2' type='submit' name=\"wpReUpload\" value=\"{$reupload}\" />
 300         </td><td align='left'>{$reup}</td></tr></table></form>\n" );
 301         }
 302
 303         function mainUploadForm( $msg ) {
 304                 global $wgOut, $wgUser, $wgLang, $wgUploadDirectory, $wgRequest;
 305                 global $wgUseCopyrightUpload;
 306
 307                 if ( "" != $msg ) {
 308                         $sub = wfMsg( "uploaderror" );
 309                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" .
 310                           "<h4 style='error'>{$msg}</h4>\n" );
 311                 } else {
 312                         $sub = wfMsg( "uploadfile" );
 313                         $wgOut->addHTML( "<h2>{$sub}</h2>\n" );
 314                 }
 315                 $wgOut->addWikiText( wfMsg( "uploadtext" ) );
 316                 $sk = $wgUser->getSkin();
 317
 318                 $fn = wfMsg( "filename" );
 319                 $fd = wfMsg( "filedesc" );
 320                 $ulb = wfMsg( "uploadbtn" );
 321
 322                 $clink = $sk->makeKnownLink( wfMsg( "copyrightpage" ),
 323                   wfMsg( "copyrightpagename" ) );
 324                 $ca = wfMsg( "affirmation", $clink );
 325                 $iw = wfMsg( "ignorewarning" );
 326
 327                 $titleObj = Title::makeTitle( NS_SPECIAL, "Upload" );
 328                 $action = $titleObj->escapeLocalURL();
 329
 330                 $source = "
 331         <td align='right'>
 332         <input tabindex='3' type='checkbox' name=\"wpUploadAffirm\" value=\"1\" id=\"wpUploadAffirm\" />
 333         </td><td align='left'><label for=\"wpUploadAffirm\">{$ca}</label></td>
 334         " ;
 335                 if ( $wgUseCopyrightUpload )
 336                   {
 337                         $source = "
 338         <td align='right' nowrap='nowrap'>" . wfMsg ( "filestatus" ) . ":</td>
 339         <td><input tabindex='3' type='text' name=\"wpUploadCopyStatus\" value=\"" .
 340         htmlspecialchars($this->mUploadCopyStatus). "\" size='40' /></td>
 341         </tr><tr>
 342         <td align='right'>". wfMsg ( "filesource" ) . ":</td>
 343         <td><input tabindex='4' type='text' name=\"wpUploadSource\" value=\"" .
 344         htmlspecialchars($this->mUploadSource). "\" size='40' /></td>
 345         " ;
 346                   }
 347
 348                 $wgOut->addHTML( "
 349         <form id=\"upload\" method=\"post\" enctype=\"multipart/form-data\"
 350         action=\"{$action}\">
 351         <table border='0'><tr>
 352         <td align='right'>{$fn}:</td><td align='left'>
 353         <input tabindex='1' type='file' name=\"wpUploadFile\" value=\""
 354           . htmlspecialchars( $this->mUploadFile ) . "\" size='40' />
 355         </td></tr><tr>
 356         <td align='right'>{$fd}:</td><td align='left'>
 357         <input tabindex='2' type='text' name=\"wpUploadDescription\" value=\""
 358           . htmlspecialchars( $this->mUploadDescription ) . "\" size='40' />
 359         </td></tr><tr>
 360         {$source}
 361         </tr>
 362         <tr><td></td><td align='left'>
 363         <input tabindex='5' type='submit' name=\"wpUpload\" value=\"{$ulb}\" />
 364         </td></tr></table></form>\n" );
 365         }
 366 }
 367 ?>