/**
  * A wrapper for mapi_inetmapi_imtoinet function
  *
  * @param MAPIMessage       $mapimessage
  * @param SyncObject        $message
  *
  * @access private
  * @return boolean
  */
 private function imtoinet($mapimessage, &$message)
 {
     // if it is a signed message get a full attachment generated by ZCP
     $props = mapi_getprops($mapimessage, array(PR_MESSAGE_CLASS));
     if (isset($props[PR_MESSAGE_CLASS]) && $props[PR_MESSAGE_CLASS] && strpos(strtolower($props[PR_MESSAGE_CLASS]), 'multipartsigned')) {
         // find the required attachment
         $attachtable = mapi_message_getattachmenttable($mapimessage);
         mapi_table_restrict($attachtable, MAPIUtils::GetSignedAttachmentRestriction());
         if (mapi_table_getrowcount($attachtable) == 1) {
             $rows = mapi_table_queryrows($attachtable, array(PR_ATTACH_NUM, PR_ATTACH_SIZE), 0, 1);
             if (isset($rows[0][PR_ATTACH_NUM])) {
                 $mapiattach = mapi_message_openattach($mapimessage, $rows[0][PR_ATTACH_NUM]);
                 $stream = mapi_openpropertytostream($mapiattach, PR_ATTACH_DATA_BIN);
                 $streamsize = $rows[0][PR_ATTACH_SIZE];
             }
         }
     } elseif (function_exists("mapi_inetmapi_imtoinet")) {
         $addrbook = $this->getAddressbook();
         $stream = mapi_inetmapi_imtoinet($this->session, $addrbook, $mapimessage, array('use_tnef' => -1));
         $mstreamstat = mapi_stream_stat($stream);
         $streamsize = $mstreamstat["cb"];
     }
     if (isset($stream) && isset($streamsize)) {
         if (Request::GetProtocolVersion() >= 12.0) {
             if (!isset($message->asbody)) {
                 $message->asbody = new SyncBaseBody();
             }
             //TODO data should be wrapped in a MapiStreamWrapper
             $message->asbody->data = mapi_stream_read($stream, $streamsize);
             $message->asbody->estimatedDataSize = $streamsize;
             $message->asbody->truncated = 0;
         } else {
             $message->mimetruncated = 0;
             //TODO mimedata should be a wrapped in a MapiStreamWrapper
             $message->mimedata = mapi_stream_read($stream, $streamsize);
             $message->mimesize = $streamsize;
         }
         unset($message->body, $message->bodytruncated);
         return true;
     } else {
         ZLog::Write(LOGLEVEL_ERROR, sprintf("Error opening attachment for imtoinet"));
     }
     return false;
 }