//.........这里部分代码省略.........
             $message->meetingrequest->reminder = "";
         } else {
             ///set the default reminder time to seconds
             if ($props[$meetingrequestproperties["remindertime"]] == 0x5ae980e1) {
                 $message->meetingrequest->reminder = 900;
             } else {
                 $message->meetingrequest->reminder = $props[$meetingrequestproperties["remindertime"]] * 60;
             }
         }
         // Set sensitivity to 0 if missing
         if (!isset($message->meetingrequest->sensitivity)) {
             $message->meetingrequest->sensitivity = 0;
         }
         // if a meeting request response hasn't been processed yet,
         // do it so that the attendee status is updated on the mobile
         if (!isset($messageprops[$emailproperties["processed"]])) {
             $req = new Meetingrequest($this->store, $mapimessage, $this->session);
             if ($req->isMeetingRequestResponse()) {
                 $req->processMeetingRequestResponse();
             }
             if ($req->isMeetingCancellation()) {
                 $req->processMeetingCancellation();
             }
         }
     }
     // Add attachments
     $attachtable = mapi_message_getattachmenttable($mapimessage);
     $rows = mapi_table_queryallrows($attachtable, array(PR_ATTACH_NUM));
     $entryid = bin2hex($messageprops[$emailproperties["entryid"]]);
     foreach ($rows as $row) {
         if (isset($row[PR_ATTACH_NUM])) {
             $mapiattach = mapi_message_openattach($mapimessage, $row[PR_ATTACH_NUM]);
             $attachprops = mapi_getprops($mapiattach, array(PR_ATTACH_LONG_FILENAME, PR_ATTACH_FILENAME, PR_ATTACHMENT_HIDDEN, PR_ATTACH_CONTENT_ID, PR_ATTACH_CONTENT_ID_W, PR_ATTACH_MIME_TAG, PR_ATTACH_MIME_TAG_W));
             $stream = mapi_openpropertytostream($mapiattach, PR_ATTACH_DATA_BIN);
             if ($stream) {
                 $stat = mapi_stream_stat($stream);
                 if (Request::GetProtocolVersion() >= 12.0) {
                     $attach = new SyncBaseAttachment();
                 } else {
                     $attach = new SyncAttachment();
                 }
                 // the displayname is handled equal for all AS versions
                 $attach->displayname = w2u(isset($attachprops[PR_ATTACH_LONG_FILENAME]) ? $attachprops[PR_ATTACH_LONG_FILENAME] : (isset($attachprops[PR_ATTACH_FILENAME]) ? $attachprops[PR_ATTACH_FILENAME] : "attachment.bin"));
                 // fix attachment name in case of inline images
                 if ($attach->displayname == "inline.txt" && (isset($attachprops[PR_ATTACH_MIME_TAG]) || $attachprops[PR_ATTACH_MIME_TAG_W])) {
                     $mimetype = isset($attachprops[PR_ATTACH_MIME_TAG]) ? $attachprops[PR_ATTACH_MIME_TAG] : $attachprops[PR_ATTACH_MIME_TAG_W];
                     $mime = explode("/", $mimetype);
                     if (count($mime) == 2 && $mime[0] == "image") {
                         $attach->displayname = "inline." . $mime[1];
                     }
                 }
                 // set AS version specific parameters
                 if (Request::GetProtocolVersion() >= 12.0) {
                     $attach->filereference = $entryid . ":" . $row[PR_ATTACH_NUM];
                     $attach->method = 1;
                     $attach->estimatedDataSize = $stat["cb"];
                     if (isset($attachprops[PR_ATTACH_CONTENT_ID]) && $attachprops[PR_ATTACH_CONTENT_ID]) {
                         $attach->contentid = $attachprops[PR_ATTACH_CONTENT_ID];
                     }
                     if (!isset($attach->contentid) && isset($attachprops[PR_ATTACH_CONTENT_ID_W]) && $attachprops[PR_ATTACH_CONTENT_ID_W]) {
                         $attach->contentid = $attachprops[PR_ATTACH_CONTENT_ID_W];
                     }
                     if (isset($attachprops[PR_ATTACHMENT_HIDDEN]) && $attachprops[PR_ATTACHMENT_HIDDEN]) {
                         $attach->isinline = 1;
                     }
                     if (!isset($message->asattachments)) {

 /**
  * Function which clones current occurrence and sets appropriate properties.
  * The original recurring item is moved to next occurrence.
  *@param boolean $markComplete true if existing occurrence has to be mark complete else false.
  */
 function regenerateTask($markComplete)
 {
     // Get all properties
     $taskItemProps = mapi_getprops($this->message);
     if (isset($this->action["subject"])) {
         $taskItemProps[$this->proptags["subject"]] = $this->action["subject"];
     }
     if (isset($this->action["importance"])) {
         $taskItemProps[$this->proptags["importance"]] = $this->action["importance"];
     }
     if (isset($this->action["startdate"])) {
         $taskItemProps[$this->proptags["startdate"]] = $this->action["startdate"];
         $taskItemProps[$this->proptags["commonstart"]] = $this->action["startdate"];
     }
     if (isset($this->action["duedate"])) {
         $taskItemProps[$this->proptags["duedate"]] = $this->action["duedate"];
         $taskItemProps[$this->proptags["commonend"]] = $this->action["duedate"];
     }
     $folder = mapi_msgstore_openentry($this->store, $taskItemProps[PR_PARENT_ENTRYID]);
     $newMessage = mapi_folder_createmessage($folder);
     $taskItemProps[$this->proptags["status"]] = $markComplete ? olTaskComplete : olTaskNotStarted;
     $taskItemProps[$this->proptags["complete"]] = $markComplete;
     $taskItemProps[$this->proptags["percent_complete"]] = $markComplete ? 1 : 0;
     // This occurrence has been marked as 'Complete' so disable reminder
     if ($markComplete) {
         $taskItemProps[$this->proptags["reset_reminder"]] = false;
         $taskItemProps[$this->proptags["reminder"]] = false;
         $taskItemProps[$this->proptags["datecompleted"]] = $this->action["datecompleted"];
         unset($this->action[$this->proptags['datecompleted']]);
     }
     // Recurrence ends for this item
     $taskItemProps[$this->proptags["dead_occurrence"]] = true;
     $taskItemProps[$this->proptags["task_f_creator"]] = true;
     //OL props
     $taskItemProps[$this->proptags["side_effects"]] = 1296;
     $taskItemProps[$this->proptags["icon_index"]] = 1280;
     // Copy recipients
     $recipienttable = mapi_message_getrecipienttable($this->message);
     $recipients = mapi_table_queryallrows($recipienttable, array(PR_ENTRYID, PR_DISPLAY_NAME, PR_EMAIL_ADDRESS, PR_RECIPIENT_ENTRYID, PR_RECIPIENT_TYPE, PR_SEND_INTERNET_ENCODING, PR_SEND_RICH_INFO, PR_RECIPIENT_DISPLAY_NAME, PR_ADDRTYPE, PR_DISPLAY_TYPE, PR_RECIPIENT_TRACKSTATUS, PR_RECIPIENT_TRACKSTATUS_TIME, PR_RECIPIENT_FLAGS, PR_ROWID));
     $copy_to_recipientTable = mapi_message_getrecipienttable($newMessage);
     $copy_to_recipientRows = mapi_table_queryallrows($copy_to_recipientTable, array(PR_ROWID));
     foreach ($copy_to_recipientRows as $recipient) {
         mapi_message_modifyrecipients($newMessage, MODRECIP_REMOVE, array($recipient));
     }
     mapi_message_modifyrecipients($newMessage, MODRECIP_ADD, $recipients);
     // Copy attachments
     $attachmentTable = mapi_message_getattachmenttable($this->message);
     if ($attachmentTable) {
         $attachments = mapi_table_queryallrows($attachmentTable, array(PR_ATTACH_NUM, PR_ATTACH_SIZE, PR_ATTACH_LONG_FILENAME, PR_ATTACHMENT_HIDDEN, PR_DISPLAY_NAME, PR_ATTACH_METHOD));
         foreach ($attachments as $attach_props) {
             $attach_old = mapi_message_openattach($this->message, (int) $attach_props[PR_ATTACH_NUM]);
             $attach_newResourceMsg = mapi_message_createattach($newMessage);
             mapi_copyto($attach_old, array(), array(), $attach_newResourceMsg, 0);
             mapi_savechanges($attach_newResourceMsg);
         }
     }
     mapi_setprops($newMessage, $taskItemProps);
     mapi_savechanges($newMessage);
     // Update body of original message
     $msgbody = mapi_message_openproperty($this->message, PR_BODY);
     $msgbody = trim($this->windows1252_to_utf8($msgbody), "");
     $separator = "------------\r\n";
     if (!empty($msgbody) && strrpos($msgbody, $separator) === false) {
         $msgbody = $separator . $msgbody;
         $stream = mapi_openpropertytostream($this->message, PR_BODY, MAPI_CREATE | MAPI_MODIFY);
         mapi_stream_setsize($stream, strlen($msgbody));
         mapi_stream_write($stream, $msgbody);
         mapi_stream_commit($stream);
     }
     // We need these properties to notify client
     return mapi_getprops($newMessage, array(PR_ENTRYID, PR_PARENT_ENTRYID, PR_STORE_ENTRYID));
 }

 /**
  * 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;
 }

 function GetAttachmentData($attname)
 {
     list($folderid, $id, $attachnum) = explode(":", $attname);
     if (!isset($id) || !isset($attachnum)) {
         return false;
     }
     $sourcekey = hex2bin($id);
     $foldersourcekey = hex2bin($folderid);
     $entryid = mapi_msgstore_entryidfromsourcekey($this->_defaultstore, $foldersourcekey, $sourcekey);
     if (!$entryid) {
         debugLog("Attachment requested for non-existing item {$attname}");
         return false;
     }
     $message = mapi_msgstore_openentry($this->_defaultstore, $entryid);
     if (!$message) {
         debugLog("Unable to open item for attachment data for " . bin2hex($entryid));
         return false;
     }
     $attach = mapi_message_openattach($message, $attachnum);
     if (!$attach) {
         debugLog("Unable to open attachment number {$attachnum}");
         return false;
     }
     $stream = mapi_openpropertytostream($attach, PR_ATTACH_DATA_BIN);
     if (!$stream) {
         debugLog("Unable to open attachment data stream");
         return false;
     }
     while (1) {
         $data = mapi_stream_read($stream, 4096);
         if (strlen($data) == 0) {
             break;
         }
         print $data;
     }
     return true;
 }

 /**
  * Copies attachments from one message to another.
  *
  * @param MAPIMessage $toMessage
  * @param MAPIMessage $fromMessage
  *
  * @return void
  */
 private function copyAttachments(&$toMessage, $fromMessage)
 {
     $attachtable = mapi_message_getattachmenttable($fromMessage);
     $rows = mapi_table_queryallrows($attachtable, array(PR_ATTACH_NUM));
     foreach ($rows as $row) {
         if (isset($row[PR_ATTACH_NUM])) {
             $attach = mapi_message_openattach($fromMessage, $row[PR_ATTACH_NUM]);
             $newattach = mapi_message_createattach($toMessage);
             // Copy all attachments from old to new attachment
             $attachprops = mapi_getprops($attach);
             mapi_setprops($newattach, $attachprops);
             if (isset($attachprops[mapi_prop_tag(PT_ERROR, mapi_prop_id(PR_ATTACH_DATA_BIN))])) {
                 // Data is in a stream
                 $srcstream = mapi_openpropertytostream($attach, PR_ATTACH_DATA_BIN);
                 $dststream = mapi_openpropertytostream($newattach, PR_ATTACH_DATA_BIN, MAPI_MODIFY | MAPI_CREATE);
                 while (1) {
                     $data = mapi_stream_read($srcstream, 4096);
                     if (strlen($data) == 0) {
                         break;
                     }
                     mapi_stream_write($dststream, $data);
                 }
                 mapi_stream_commit($dststream);
             }
             mapi_savechanges($newattach);
         }
     }
 }

function buildEMLAttachment($attach)
{
    $msgembedded = mapi_attach_openobj($attach);
    $msgprops = mapi_getprops($msgembedded, array(PR_MESSAGE_CLASS, PR_CLIENT_SUBMIT_TIME, PR_DISPLAY_TO, PR_SUBJECT, PR_SENT_REPRESENTING_NAME, PR_SENT_REPRESENTING_EMAIL_ADDRESS));
    $msgembeddedrcpttable = mapi_message_getrecipienttable($msgembedded);
    $msgto = $msgprops[PR_DISPLAY_TO];
    if ($msgembeddedrcpttable) {
        $msgembeddedrecipients = mapi_table_queryrows($msgembeddedrcpttable, array(PR_ADDRTYPE, PR_ENTRYID, PR_DISPLAY_NAME, PR_EMAIL_ADDRESS, PR_SMTP_ADDRESS, PR_RECIPIENT_TYPE, PR_RECIPIENT_FLAGS, PR_PROPOSEDNEWTIME, PR_PROPOSENEWTIME_START, PR_PROPOSENEWTIME_END, PR_RECIPIENT_TRACKSTATUS), 0, 99999999);
        foreach ($msgembeddedrecipients as $rcpt) {
            if ($rcpt[PR_DISPLAY_NAME] == $msgprops[PR_DISPLAY_TO]) {
                $msgto = $rcpt[PR_DISPLAY_NAME];
                if (isset($rcpt[PR_EMAIL_ADDRESS]) && $rcpt[PR_EMAIL_ADDRESS] != $msgprops[PR_DISPLAY_TO]) {
                    $msgto .= " <" . $rcpt[PR_EMAIL_ADDRESS] . ">";
                }
                break;
            }
        }
    }
    $msgsubject = $msgprops[PR_SUBJECT];
    $msgfrom = $msgprops[PR_SENT_REPRESENTING_NAME];
    if (isset($msgprops[PR_SENT_REPRESENTING_EMAIL_ADDRESS]) && $msgprops[PR_SENT_REPRESENTING_EMAIL_ADDRESS] != $msgprops[PR_SENT_REPRESENTING_NAME]) {
        $msgfrom .= " <" . $msgprops[PR_SENT_REPRESENTING_EMAIL_ADDRESS] . ">";
    }
    $msgtime = $msgprops[PR_CLIENT_SUBMIT_TIME];
    $msgembeddedbody = eml_ReadMessage($msgembedded);
    $msgembeddedattachtable = mapi_message_getattachmenttable($msgembedded);
    $msgembeddedattachtablerows = mapi_table_queryallrows($msgembeddedattachtable, array(PR_ATTACH_NUM, PR_ATTACH_METHOD));
    if ($msgembeddedattachtablerows) {
        $boundary = '=_zpush_static';
        $headercontenttype = "multipart/mixed";
        $msgembeddedbody['body'] = "Unfortunately your mobile is not able to handle MIME Messages\n" . "--" . $boundary . "\n" . "Content-Type: " . $msgembeddedbody['content'] . "; charset=utf-8\n" . "Content-Transfer-Encoding: quoted-printable\n\n" . $msgembeddedbody['body'] . "\n";
        foreach ($msgembeddedattachtablerows as $msgembeddedattachtablerow) {
            $msgembeddedattach = mapi_message_openattach($msgembedded, $msgembeddedattachtablerow[PR_ATTACH_NUM]);
            if (!$msgembeddedattach) {
                debugLog("Unable to open attachment number {$attachnum}");
            } else {
                $msgembeddedattachprops = mapi_getprops($msgembeddedattach, array(PR_ATTACH_MIME_TAG, PR_ATTACH_LONG_FILENAME, PR_ATTACH_FILENAME, PR_DISPLAY_NAME));
                if (isset($msgembeddedattachprops[PR_ATTACH_LONG_FILENAME])) {
                    $attachfilename = w2u($msgembeddedattachprops[PR_ATTACH_LONG_FILENAME]);
                } else {
                    if (isset($msgembeddedattachprops[PR_ATTACH_FILENAME])) {
                        $attachfilename = w2u($msgembeddedattachprops[PR_ATTACH_FILENAME]);
                    } else {
                        if (isset($msgembeddedattachprops[PR_DISPLAY_NAME])) {
                            $attachfilename = w2u($msgembeddedattachprops[PR_DISPLAY_NAME]);
                        } else {
                            $attachfilename = w2u("untitled");
                        }
                    }
                }
                if ($msgembeddedattachtablerow[PR_ATTACH_METHOD] == ATTACH_EMBEDDED_MSG) {
                    $attachfilename .= w2u(".eml");
                }
                $msgembeddedbody['body'] .= "--" . $boundary . "\n" . "Content-Type: " . $msgembeddedattachprops[PR_ATTACH_MIME_TAG] . ";\n" . " name=\"" . $attachfilename . "\"\n" . "Content-Transfer-Encoding: base64\n" . "Content-Disposition: attachment;\n" . " filename=\"" . $attachfilename . "\"\n\n";
                $msgembeddedattachstream = mapi_openpropertytostream($msgembeddedattach, PR_ATTACH_DATA_BIN);
                $msgembeddedattachment = "";
                while (1) {
                    $msgembeddedattachdata = mapi_stream_read($msgembeddedattachstream, 4096);
                    if (byte_strlen($msgembeddedattachdata) == 0) {
                        break;
                    }
                    $msgembeddedattachment .= $msgembeddedattachdata;
                }
                $msgembeddedbody['body'] .= chunk_split(base64_encode($msgembeddedattachment)) . "\n";
                unset($msgembeddedattachment);
            }
        }
        $msgembeddedbody['body'] .= "--" . $boundary . "--\n";
    } else {
        $headercontenttype = $msgembeddedbody['content'] . "; charset=utf-8";
        $boundary = '';
    }
    $msgembeddedheader = "Subject: " . $msgsubject . "\n" . "From: " . $msgfrom . "\n" . "To: " . $msgto . "\n" . "Date: " . gmstrftime("%a, %d %b %Y %T +0000", $msgprops[PR_CLIENT_SUBMIT_TIME]) . "\n" . "MIME-Version: 1.0\n" . "Content-Type: " . $headercontenttype . ";\n" . ($boundary ? " boundary=\"" . $boundary . "\"\n" : "") . "\n";
    $stream = mapi_stream_create();
    mapi_stream_setsize($stream, byte_strlen($msgembeddedheader . $msgembeddedbody['body']));
    mapi_stream_write($stream, $msgembeddedheader . $msgembeddedbody['body']);
    mapi_stream_seek($stream, 0, STREAM_SEEK_SET);
    return $stream;
}

 function sendResponse($type, $prefix)
 {
     // Create a message in our outbox
     $outgoing = $this->createOutgoingMessage();
     $messageprops = mapi_getprops($this->message, array(PR_SUBJECT));
     $attach = mapi_message_createattach($outgoing);
     mapi_setprops($attach, array(PR_ATTACH_METHOD => ATTACH_EMBEDDED_MSG, PR_DISPLAY_NAME => $messageprops[PR_SUBJECT], PR_ATTACHMENT_HIDDEN => true));
     $sub = mapi_attach_openproperty($attach, PR_ATTACH_DATA_OBJ, IID_IMessage, 0, MAPI_CREATE | MAPI_MODIFY);
     mapi_copyto($this->message, array(), array(PR_SENT_REPRESENTING_NAME, PR_SENT_REPRESENTING_EMAIL_ADDRESS, PR_SENT_REPRESENTING_ADDRTYPE, PR_SENT_REPRESENTING_ENTRYID, PR_SENT_REPRESENTING_SEARCH_KEY), $outgoing);
     mapi_copyto($this->message, array(), array(), $sub);
     if (!$this->setRecipientsForResponse($outgoing, $type)) {
         return false;
     }
     switch ($type) {
         case tdmtTaskAcc:
             $messageclass = "IPM.TaskRequest.Accept";
             break;
         case tdmtTaskDec:
             $messageclass = "IPM.TaskRequest.Decline";
             break;
         case tdmtTaskUpd:
             $messageclass = "IPM.TaskRequest.Update";
             break;
     }
     mapi_savechanges($sub);
     mapi_savechanges($attach);
     // Set Body
     $body = $this->getBody();
     $stream = mapi_openpropertytostream($outgoing, PR_BODY, MAPI_CREATE | MAPI_MODIFY);
     mapi_stream_setsize($stream, strlen($body));
     mapi_stream_write($stream, $body);
     mapi_stream_commit($stream);
     // Set subject, taskmode, message class, icon index, response time
     mapi_setprops($outgoing, array(PR_SUBJECT => $prefix . $messageprops[PR_SUBJECT], $this->props['taskmode'] => $type, PR_MESSAGE_CLASS => $messageclass, PR_ICON_INDEX => 0xffffffff, $this->props['assignedtime'] => time()));
     mapi_savechanges($outgoing);
     mapi_message_submitmessage($outgoing);
     return true;
 }

 function GetAttachmentData($attname)
 {
     list($folderid, $id, $attachnum) = explode(":", $attname);
     if (!isset($id) || !isset($attachnum)) {
         return false;
     }
     $sourcekey = hex2bin($id);
     $foldersourcekey = hex2bin($folderid);
     $entryid = mapi_msgstore_entryidfromsourcekey($this->_defaultstore, $foldersourcekey, $sourcekey);
     if (!$entryid) {
         debugLog("Attachment requested for non-existing item {$attname}");
         return false;
     }
     $message = mapi_msgstore_openentry($this->_defaultstore, $entryid);
     if (!$message) {
         debugLog("Unable to open item for attachment data for " . bin2hex($entryid));
         return false;
     }
     $attach = mapi_message_openattach($message, $attachnum);
     if (!$attach) {
         debugLog("Unable to open attachment number {$attachnum}");
         return false;
     }
     $attachtable = mapi_message_getattachmenttable($message);
     // START CHANGED dw2412 EML Attachment
     $rows = mapi_table_queryallrows($attachtable, array(PR_ATTACH_NUM, PR_ATTACH_METHOD));
     foreach ($rows as $row) {
         if (isset($row[PR_ATTACH_NUM]) && $row[PR_ATTACH_NUM] == $attachnum) {
             if ($row[PR_ATTACH_METHOD] == ATTACH_EMBEDDED_MSG) {
                 $stream = buildEMLAttachment($attach);
             } else {
                 $stream = mapi_openpropertytostream($attach, PR_ATTACH_DATA_BIN);
             }
         }
     }
     // END CHANGED dw2412 EML Attachment
     if (!$stream) {
         debugLog("Unable to open attachment data stream");
         return false;
     }
     while (1) {
         $data = mapi_stream_read($stream, 4096);
         if (strlen($data) == 0) {
             break;
         }
         print $data;
     }
     return true;
 }

//.........这里部分代码省略.........
         if (isset($row[PR_ATTACH_NUM])) {
             if (Request::GetProtocolVersion() >= 12.0) {
                 $attach = new SyncBaseAttachment();
             } else {
                 $attach = new SyncAttachment();
             }
             $mapiattach = mapi_message_openattach($mapimessage, $row[PR_ATTACH_NUM]);
             $attachprops = mapi_getprops($mapiattach, array(PR_ATTACH_LONG_FILENAME, PR_ATTACH_FILENAME, PR_ATTACHMENT_HIDDEN, PR_ATTACH_CONTENT_ID, PR_ATTACH_CONTENT_ID_W, PR_ATTACH_MIME_TAG, PR_ATTACH_MIME_TAG_W, PR_ATTACH_METHOD, PR_DISPLAY_NAME, PR_DISPLAY_NAME_W, PR_ATTACH_SIZE));
             if (isset($attachprops[PR_ATTACH_MIME_TAG]) && strpos(strtolower($attachprops[PR_ATTACH_MIME_TAG]), 'signed') !== false || isset($attachprops[PR_ATTACH_MIME_TAG_W]) && strpos(strtolower($attachprops[PR_ATTACH_MIME_TAG_W]), 'signed') !== false) {
                 continue;
             }
             // the displayname is handled equaly for all AS versions
             $attach->displayname = w2u(isset($attachprops[PR_ATTACH_LONG_FILENAME]) ? $attachprops[PR_ATTACH_LONG_FILENAME] : (isset($attachprops[PR_ATTACH_FILENAME]) ? $attachprops[PR_ATTACH_FILENAME] : (isset($attachprops[PR_DISPLAY_NAME]) ? $attachprops[PR_DISPLAY_NAME] : "attachment.bin")));
             // fix attachment name in case of inline images
             if ($attach->displayname == "inline.txt" && (isset($attachprops[PR_ATTACH_MIME_TAG]) || $attachprops[PR_ATTACH_MIME_TAG_W])) {
                 $mimetype = isset($attachprops[PR_ATTACH_MIME_TAG]) ? $attachprops[PR_ATTACH_MIME_TAG] : $attachprops[PR_ATTACH_MIME_TAG_W];
                 $mime = explode("/", $mimetype);
                 if (count($mime) == 2 && $mime[0] == "image") {
                     $attach->displayname = "inline." . $mime[1];
                 }
             }
             // set AS version specific parameters
             if (Request::GetProtocolVersion() >= 12.0) {
                 $attach->filereference = sprintf("%s:%s:%s", $entryid, $row[PR_ATTACH_NUM], $parentSourcekey);
                 $attach->method = isset($attachprops[PR_ATTACH_METHOD]) ? $attachprops[PR_ATTACH_METHOD] : ATTACH_BY_VALUE;
                 // if displayname does not have the eml extension for embedde messages, android and WP devices won't open it
                 if ($attach->method == ATTACH_EMBEDDED_MSG) {
                     if (strtolower(substr($attach->displayname, -4)) != '.eml') {
                         $attach->displayname .= '.eml';
                     }
                 }
                 // android devices require attachment size in order to display an attachment properly
                 if (!isset($attachprops[PR_ATTACH_SIZE])) {
                     $stream = mapi_openpropertytostream($mapiattach, PR_ATTACH_DATA_BIN);
                     $stat = mapi_stream_stat($stream);
                     $attach->estimatedDataSize = $stat['cb'];
                 } else {
                     $attach->estimatedDataSize = $attachprops[PR_ATTACH_SIZE];
                 }
                 if (isset($attachprops[PR_ATTACH_CONTENT_ID]) && $attachprops[PR_ATTACH_CONTENT_ID]) {
                     $attach->contentid = $attachprops[PR_ATTACH_CONTENT_ID];
                 }
                 if (!isset($attach->contentid) && isset($attachprops[PR_ATTACH_CONTENT_ID_W]) && $attachprops[PR_ATTACH_CONTENT_ID_W]) {
                     $attach->contentid = $attachprops[PR_ATTACH_CONTENT_ID_W];
                 }
                 if (isset($attachprops[PR_ATTACHMENT_HIDDEN]) && $attachprops[PR_ATTACHMENT_HIDDEN]) {
                     $attach->isinline = 1;
                 }
                 if (!isset($message->asattachments)) {
                     $message->asattachments = array();
                 }
                 array_push($message->asattachments, $attach);
             } else {
                 $attach->attsize = $attachprops[PR_ATTACH_SIZE];
                 $attach->attname = sprintf("%s:%s:%s", $entryid, $row[PR_ATTACH_NUM], $parentSourcekey);
                 if (!isset($message->attachments)) {
                     $message->attachments = array();
                 }
                 array_push($message->attachments, $attach);
             }
         }
     }
     // Get To/Cc as SMTP addresses (this is different from displayto and displaycc because we are putting
     // in the SMTP addresses as well, while displayto and displaycc could just contain the display names
     $message->to = array();
     $message->cc = array();

 /**
  * Returns the content of the named attachment as stream
  *
  * @param string        $attname
  * @access public
  * @return SyncItemOperationsAttachment
  * @throws StatusException
  */
 public function GetAttachmentData($attname)
 {
     ZLog::Write(LOGLEVEL_DEBUG, sprintf("ZarafaBackend->GetAttachmentData('%s')", $attname));
     if (!strpos($attname, ":")) {
         throw new StatusException(sprintf("ZarafaBackend->GetAttachmentData('%s'): Error, attachment requested for non-existing item", $attname), SYNC_ITEMOPERATIONSSTATUS_INVALIDATT);
     }
     list($id, $attachnum) = explode(":", $attname);
     $entryid = hex2bin($id);
     $message = mapi_msgstore_openentry($this->store, $entryid);
     if (!$message) {
         throw new StatusException(sprintf("ZarafaBackend->GetAttachmentData('%s'): Error, unable to open item for attachment data for id '%s' with: 0x%X", $attname, $id, mapi_last_hresult()), SYNC_ITEMOPERATIONSSTATUS_INVALIDATT);
     }
     $attach = mapi_message_openattach($message, $attachnum);
     if (!$attach) {
         throw new StatusException(sprintf("ZarafaBackend->GetAttachmentData('%s'): Error, unable to open attachment number '%s' with: 0x%X", $attname, $attachnum, mapi_last_hresult()), SYNC_ITEMOPERATIONSSTATUS_INVALIDATT);
     }
     // get necessary attachment props
     $attprops = mapi_getprops($attach, array(PR_ATTACH_MIME_TAG, PR_ATTACH_MIME_TAG_W, PR_ATTACH_METHOD));
     $attachment = new SyncItemOperationsAttachment();
     // check if it's an embedded message and open it in such a case
     if (isset($attprops[PR_ATTACH_METHOD]) && $attprops[PR_ATTACH_METHOD] == ATTACH_EMBEDDED_MSG) {
         $embMessage = mapi_attach_openobj($attach);
         $addrbook = $this->getAddressbook();
         $stream = mapi_inetmapi_imtoinet($this->session, $addrbook, $embMessage, array('use_tnef' => -1));
         // set the default contenttype for this kind of messages
         $attachment->contenttype = "message/rfc822";
     } else {
         $stream = mapi_openpropertytostream($attach, PR_ATTACH_DATA_BIN);
     }
     if (!$stream) {
         throw new StatusException(sprintf("ZarafaBackend->GetAttachmentData('%s'): Error, unable to open attachment data stream: 0x%X", $attname, mapi_last_hresult()), SYNC_ITEMOPERATIONSSTATUS_INVALIDATT);
     }
     // put the mapi stream into a wrapper to get a standard stream
     $attachment->data = MapiStreamWrapper::Open($stream);
     if (isset($attprops[PR_ATTACH_MIME_TAG])) {
         $attachment->contenttype = $attprops[PR_ATTACH_MIME_TAG];
     } elseif (isset($attprops[PR_ATTACH_MIME_TAG_W])) {
         $attachment->contenttype = $attprops[PR_ATTACH_MIME_TAG_W];
     }
     //TODO default contenttype
     return $attachment;
 }