includes/SpecialUpload.php

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