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   1  <?php
   2  /*
   3   * FCKeditor - The text editor for Internet - http://www.fckeditor.net
   4   * Copyright (C) 2003-2009 Frederico Caldeira Knabben
   5   *
   6   * == BEGIN LICENSE ==
   7   *
   8   * Licensed under the terms of any of the following licenses at your
   9   * choice:
  10   *
  11   *  - GNU General Public License Version 2 or later (the "GPL")
  12   *    http://www.gnu.org/licenses/gpl.html
  13   *
  14   *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
  15   *    http://www.gnu.org/licenses/lgpl.html
  16   *
  17   *  - Mozilla Public License Version 1.1 or later (the "MPL")
  18   *    http://www.mozilla.org/MPL/MPL-1.1.html
  19   *
  20   * == END LICENSE ==
  21   *
  22   * This is the File Manager Connector for PHP.
  23   */
  24  function CombinePaths( $sBasePath, $sFolder )
  25  {
  26      return RemoveFromEnd( $sBasePath, '/' ) . '/' . RemoveFromStart( $sFolder, '/' ) ;
  27  }
  28  function GetResourceTypePath( $resourceType, $sCommand )
  29  {
  30      global $Config ;
  31  
  32      if ( $sCommand == "QuickUpload")
  33          return $Config['QuickUploadPath'][$resourceType] ;
  34      else
  35          return $Config['FileTypesPath'][$resourceType] ;
  36  }
  37  
  38  function GetResourceTypeDirectory( $resourceType, $sCommand )
  39  {
  40      global $Config ;
  41      if ( $sCommand == "QuickUpload")
  42      {
  43          if ( strlen( $Config['QuickUploadAbsolutePath'][$resourceType] ) > 0 )
  44              return $Config['QuickUploadAbsolutePath'][$resourceType] ;
  45  
  46          // Map the "UserFiles" path to a local directory.
  47          return Server_MapPath( $Config['QuickUploadPath'][$resourceType] ) ;
  48      }
  49      else
  50      {
  51          if ( strlen( $Config['FileTypesAbsolutePath'][$resourceType] ) > 0 )
  52              return $Config['FileTypesAbsolutePath'][$resourceType] ;
  53  
  54          // Map the "UserFiles" path to a local directory.
  55          return Server_MapPath( $Config['FileTypesPath'][$resourceType] ) ;
  56      }
  57  }
  58  
  59  function GetUrlFromPath( $resourceType, $folderPath, $sCommand )
  60  {
  61      return CombinePaths( GetResourceTypePath( $resourceType, $sCommand ), $folderPath ) ;
  62  }
  63  
  64  function RemoveExtension( $fileName )
  65  {
  66      return substr( $fileName, 0, strrpos( $fileName, '.' ) ) ;
  67  }
  68  
  69  function ServerMapFolder( $resourceType, $folderPath, $sCommand )
  70  {
  71      // Get the resource type directory.
  72      $sResourceTypePath = GetResourceTypeDirectory( $resourceType, $sCommand ) ;
  73  
  74      // Ensure that the directory exists.
  75      $sErrorMsg = CreateServerFolder( $sResourceTypePath ) ;
  76      if ( $sErrorMsg != '' )
  77          SendError( 1, "Error creating folder \"{$sResourceTypePath}\" ({$sErrorMsg})" ) ;
  78  
  79      // Return the resource type directory combined with the required path.
  80      return CombinePaths( $sResourceTypePath , $folderPath ) ;
  81  }
  82  
  83  function GetParentFolder( $folderPath )
  84  {
  85      $sPattern = "-[/\\\\][^/\\\\]+[/\\\\]?$-" ;
  86      return preg_replace( $sPattern, '', $folderPath ) ;
  87  }
  88  
  89  function CreateServerFolder( $folderPath, $lastFolder = null )
  90  {
  91      global $Config ;
  92      $sParent = GetParentFolder( $folderPath ) ;
  93  
  94      // Ensure the folder path has no double-slashes, or mkdir may fail on certain platforms
  95      while ( strpos($folderPath, '//') !== false )
  96      {
  97          $folderPath = str_replace( '//', '/', $folderPath ) ;
  98      }
  99  
 100      // Check if the parent exists, or create it.
 101      if ( !empty($sParent) && !file_exists( $sParent ) )
 102      {
 103          //prevents agains infinite loop when we can't create root folder
 104          if ( !is_null( $lastFolder ) && $lastFolder === $sParent) {
 105              return "Can't create $folderPath directory" ;
 106          }
 107  
 108          $sErrorMsg = CreateServerFolder( $sParent, $folderPath ) ;
 109          if ( $sErrorMsg != '' )
 110              return $sErrorMsg ;
 111      }
 112  
 113      if ( !file_exists( $folderPath ) )
 114      {
 115          // Turn off all error reporting.
 116          error_reporting( 0 ) ;
 117  
 118          $php_errormsg = '' ;
 119          // Enable error tracking to catch the error.
 120          ini_set( 'track_errors', '1' ) ;
 121  
 122          if ( isset( $Config['ChmodOnFolderCreate'] ) && !$Config['ChmodOnFolderCreate'] )
 123          {
 124              mkdir( $folderPath ) ;
 125          }
 126          else
 127          {
 128              $permissions = 0777 ;
 129              if ( isset( $Config['ChmodOnFolderCreate'] ) )
 130              {
 131                  $permissions = $Config['ChmodOnFolderCreate'] ;
 132              }
 133              // To create the folder with 0777 permissions, we need to set umask to zero.
 134              $oldumask = umask(0) ;
 135              mkdir( $folderPath, $permissions ) ;
 136              umask( $oldumask ) ;
 137          }
 138  
 139          $sErrorMsg = $php_errormsg ;
 140  
 141          // Restore the configurations.
 142          ini_restore( 'track_errors' ) ;
 143          ini_restore( 'error_reporting' ) ;
 144  
 145          return $sErrorMsg ;
 146      }
 147      else
 148          return '' ;
 149  }
 150  
 151  function GetRootPath()
 152  {
 153      if (!isset($_SERVER)) {
 154          global $_SERVER;
 155      }
 156      $sRealPath = realpath( './' ) ;
 157      // #2124 ensure that no slash is at the end
 158      $sRealPath = rtrim($sRealPath,"\\/");
 159  
 160      $sSelfPath = $_SERVER['PHP_SELF'] ;
 161      $sSelfPath = substr( $sSelfPath, 0, strrpos( $sSelfPath, '/' ) ) ;
 162  
 163      $sSelfPath = str_replace( '/', DIRECTORY_SEPARATOR, $sSelfPath ) ;
 164  
 165      $position = strpos( $sRealPath, $sSelfPath ) ;
 166  
 167      // This can check only that this script isn't run from a virtual dir
 168      // But it avoids the problems that arise if it isn't checked
 169      if ( $position === false || $position <> strlen( $sRealPath ) - strlen( $sSelfPath ) )
 170          SendError( 1, 'Sorry, can\'t map "UserFilesPath" to a physical path. You must set the "UserFilesAbsolutePath" value in "editor/filemanager/connectors/php/config.php".' ) ;
 171  
 172      return substr( $sRealPath, 0, $position ) ;
 173  }
 174  
 175  // Emulate the asp Server.mapPath function.
 176  // given an url path return the physical directory that it corresponds to
 177  function Server_MapPath( $path )
 178  {
 179      // This function is available only for Apache
 180      if ( function_exists( 'apache_lookup_uri' ) )
 181      {
 182          $info = apache_lookup_uri( $path ) ;
 183          return $info->filename . $info->path_info ;
 184      }
 185  
 186      // This isn't correct but for the moment there's no other solution
 187      // If this script is under a virtual directory or symlink it will detect the problem and stop
 188      return GetRootPath() . $path ;
 189  }
 190  
 191  function IsAllowedExt( $sExtension, $resourceType )
 192  {
 193      global $Config ;
 194      // Get the allowed and denied extensions arrays.
 195      $arAllowed    = $Config['AllowedExtensions'][$resourceType] ;
 196      $arDenied    = $Config['DeniedExtensions'][$resourceType] ;
 197  
 198      if ( count($arAllowed) > 0 && !in_array( $sExtension, $arAllowed ) )
 199          return false ;
 200  
 201      if ( count($arDenied) > 0 && in_array( $sExtension, $arDenied ) )
 202          return false ;
 203  
 204      return true ;
 205  }
 206  
 207  function IsAllowedType( $resourceType )
 208  {
 209      global $Config ;
 210      if ( !in_array( $resourceType, $Config['ConfigAllowedTypes'] ) )
 211          return false ;
 212  
 213      return true ;
 214  }
 215  
 216  function IsAllowedCommand( $sCommand )
 217  {
 218      global $Config ;
 219  
 220      if ( !in_array( $sCommand, $Config['ConfigAllowedCommands'] ) )
 221          return false ;
 222  
 223      return true ;
 224  }
 225  
 226  function GetCurrentFolder()
 227  {
 228      if (!isset($_GET)) {
 229          global $_GET;
 230      }
 231      $sCurrentFolder    = isset( $_GET['CurrentFolder'] ) ? $_GET['CurrentFolder'] : '/' ;
 232  
 233      // Check the current folder syntax (must begin and start with a slash).
 234      if ( !preg_match( '|/$|', $sCurrentFolder ) )
 235          $sCurrentFolder .= '/' ;
 236      if ( strpos( $sCurrentFolder, '/' ) !== 0 )
 237          $sCurrentFolder = '/' . $sCurrentFolder ;
 238  
 239      // Ensure the folder path has no double-slashes
 240      while ( strpos ($sCurrentFolder, '//') !== false ) {
 241          $sCurrentFolder = str_replace ('//', '/', $sCurrentFolder) ;
 242      }
 243  
 244      // Check for invalid folder paths (..)
 245      if ( strpos( $sCurrentFolder, '..' ) || strpos( $sCurrentFolder, "\\" ))
 246          SendError( 102, '' ) ;
 247  
 248      if ( preg_match(",(/\.)|[[:cntrl:]]|(//)|(\\\\)|([\:\*\?\"\<\>\|]),", $sCurrentFolder))
 249          SendError( 102, '' ) ;
 250  
 251      return $sCurrentFolder ;
 252  }
 253  
 254  // Do a cleanup of the folder name to avoid possible problems
 255  function SanitizeFolderName( $sNewFolderName )
 256  {
 257      $sNewFolderName = stripslashes( $sNewFolderName ) ;
 258  
 259      // Remove . \ / | : ? * " < >
 260      $sNewFolderName = preg_replace( '/\\.|\\\\|\\/|\\||\\:|\\?|\\*|"|<|>|[[:cntrl:]]/', '_', $sNewFolderName ) ;
 261  
 262      return $sNewFolderName ;
 263  }
 264  
 265  // Do a cleanup of the file name to avoid possible problems
 266  function SanitizeFileName( $sNewFileName )
 267  {
 268      global $Config ;
 269  
 270      $sNewFileName = stripslashes( $sNewFileName ) ;
 271  
 272      // Replace dots in the name with underscores (only one dot can be there... security issue).
 273      if ( $Config['ForceSingleExtension'] )
 274          $sNewFileName = preg_replace( '/\\.(?![^.]*$)/', '_', $sNewFileName ) ;
 275  
 276      // Remove \ / | : ? * " < >
 277      $sNewFileName = preg_replace( '/\\\\|\\/|\\||\\:|\\?|\\*|"|<|>|[[:cntrl:]]/', '_', $sNewFileName ) ;
 278  
 279      return $sNewFileName ;
 280  }
 281  
 282  // This is the function that sends the results of the uploading process.
 283  function SendUploadResults( $errorNumber, $fileUrl = '', $fileName = '', $customMsg = '' )
 284  {
 285      // Minified version of the document.domain automatic fix script (#1919).
 286      // The original script can be found at _dev/domain_fix_template.js
 287      echo <<<EOF
 288  <script type="text/javascript">
 289  (function(){var d=document.domain;while (true){try{var A=window.parent.document.domain;break;}catch(e) {};d=d.replace(/.*?(?:\.|$)/,'');if (d.length==0) break;try{document.domain=d;}catch (e){break;}}})();
 290  EOF;
 291  
 292      if ($errorNumber && $errorNumber != 201) {
 293          $fileUrl = "";
 294          $fileName = "";
 295      }
 296  
 297      $rpl = array( '\\' => '\\\\', '"' => '\\"' ) ;
 298      echo 'window.parent.OnUploadCompleted(' . $errorNumber . ',"' . strtr( $fileUrl, $rpl ) . '","' . strtr( $fileName, $rpl ) . '", "' . strtr( $customMsg, $rpl ) . '") ;' ;
 299      echo '</script>' ;
 300      exit ;
 301  }
 302  
 303  ?>