Example #1
0
    if (!headers_sent()) {
        header("Content-Length: {$len}");
    }
    // send vnd.ms-sync.wbxml content type header if there is no content
    // otherwise text/html content type is added which might break some devices
    if ($len == 0) {
        header("Content-Type: application/vnd.ms-sync.wbxml");
    }
    print $data;
    // destruct backend after all data is on the stream
    $backend->Logoff();
} catch (NoPostRequestException $nopostex) {
    if ($nopostex->getCode() == NoPostRequestException::OPTIONS_REQUEST) {
        header(ZPush::GetServerHeader());
        header(ZPush::GetSupportedProtocolVersions());
        header(ZPush::GetSupportedCommands());
        ZLog::Write(LOGLEVEL_INFO, $nopostex->getMessage());
    } else {
        if ($nopostex->getCode() == NoPostRequestException::GET_REQUEST) {
            if (Request::GetUserAgent()) {
                ZLog::Write(LOGLEVEL_INFO, sprintf("User-agent: '%s'", Request::GetUserAgent()));
            }
            if (!headers_sent() && $nopostex->showLegalNotice()) {
                ZPush::PrintZPushLegal('GET not supported', $nopostex->getMessage());
            }
        }
    }
} catch (Exception $ex) {
    if (Request::GetUserAgent()) {
        ZLog::Write(LOGLEVEL_INFO, sprintf("User-agent: '%s'", Request::GetUserAgent()));
    }
Example #2
0
 /**
  * Handles the FolderSync command
  *
  * @param int       $commandCode
  *
  * @access public
  * @return boolean
  */
 public function Handle($commandCode)
 {
     // Maps serverid -> clientid for items that are received from the PIM
     $map = array();
     // Parse input
     if (!self::$decoder->getElementStartTag(SYNC_FOLDERHIERARCHY_FOLDERSYNC)) {
         return false;
     }
     if (!self::$decoder->getElementStartTag(SYNC_FOLDERHIERARCHY_SYNCKEY)) {
         return false;
     }
     $synckey = self::$decoder->getElementContent();
     if (!self::$decoder->getElementEndTag()) {
         return false;
     }
     // every FolderSync with SyncKey 0 should return the supported AS version & command headers
     if ($synckey == "0") {
         self::$specialHeaders = array();
         self::$specialHeaders[] = ZPush::GetSupportedProtocolVersions();
         self::$specialHeaders[] = ZPush::GetSupportedCommands();
     }
     $status = SYNC_FSSTATUS_SUCCESS;
     $newsynckey = $synckey;
     try {
         $syncstate = self::$deviceManager->GetStateManager()->GetSyncState($synckey);
         // We will be saving the sync state under 'newsynckey'
         $newsynckey = self::$deviceManager->GetStateManager()->GetNewSyncKey($synckey);
     } catch (StateNotFoundException $snfex) {
         $status = SYNC_FSSTATUS_SYNCKEYERROR;
     } catch (StateInvalidException $sive) {
         $status = SYNC_FSSTATUS_SYNCKEYERROR;
     }
     // The ChangesWrapper caches all imports in-memory, so we can send a change count
     // before sending the actual data.
     // the HierarchyCache is notified and the changes from the PIM are transmitted to the actual backend
     $changesMem = self::$deviceManager->GetHierarchyChangesWrapper();
     // the hierarchyCache should now fully be initialized - check for changes in the additional folders
     $changesMem->Config(ZPush::GetAdditionalSyncFolders());
     // process incoming changes
     if (self::$decoder->getElementStartTag(SYNC_FOLDERHIERARCHY_CHANGES)) {
         // Ignore <Count> if present
         if (self::$decoder->getElementStartTag(SYNC_FOLDERHIERARCHY_COUNT)) {
             self::$decoder->getElementContent();
             if (!self::$decoder->getElementEndTag()) {
                 return false;
             }
         }
         // Process the changes (either <Add>, <Modify>, or <Remove>)
         $element = self::$decoder->getElement();
         if ($element[EN_TYPE] != EN_TYPE_STARTTAG) {
             return false;
         }
         $importer = false;
         while (1) {
             $folder = new SyncFolder();
             if (!$folder->Decode(self::$decoder)) {
                 break;
             }
             try {
                 if ($status == SYNC_FSSTATUS_SUCCESS && !$importer) {
                     // Configure the backends importer with last state
                     $importer = self::$backend->GetImporter();
                     $importer->Config($syncstate);
                     // the messages from the PIM will be forwarded to the backend
                     $changesMem->forwardImporter($importer);
                 }
                 if ($status == SYNC_FSSTATUS_SUCCESS) {
                     switch ($element[EN_TAG]) {
                         case SYNC_ADD:
                         case SYNC_MODIFY:
                             $serverid = $changesMem->ImportFolderChange($folder);
                             break;
                         case SYNC_REMOVE:
                             $serverid = $changesMem->ImportFolderDeletion($folder);
                             break;
                     }
                     // TODO what does $map??
                     if ($serverid) {
                         $map[$serverid] = $folder->clientid;
                     }
                 } else {
                     ZLog::Write(LOGLEVEL_WARN, sprintf("Request->HandleFolderSync(): ignoring incoming folderchange for folder '%s' as status indicates problem.", $folder->displayname));
                     self::$topCollector->AnnounceInformation("Incoming change ignored", true);
                 }
             } catch (StatusException $stex) {
                 $status = $stex->getCode();
             }
         }
         if (!self::$decoder->getElementEndTag()) {
             return false;
         }
     } else {
         // check for a potential process loop like described in Issue ZP-5
         if ($synckey != "0" && self::$deviceManager->IsHierarchyFullResyncRequired()) {
             $status = SYNC_FSSTATUS_SYNCKEYERROR;
         }
         self::$deviceManager->AnnounceProcessStatus(false, $status);
     }
     if (!self::$decoder->getElementEndTag()) {
         return false;
     }
     // We have processed incoming foldersync requests, now send the PIM
     // our changes
     // Output our WBXML reply now
     self::$encoder->StartWBXML();
     self::$encoder->startTag(SYNC_FOLDERHIERARCHY_FOLDERSYNC);
     if ($status == SYNC_FSSTATUS_SUCCESS) {
         try {
             // do nothing if this is an invalid device id (like the 'validate' Androids internal client sends)
             if (!Request::IsValidDeviceID()) {
                 throw new StatusException(sprintf("Request::IsValidDeviceID() indicated that '%s' is not a valid device id", Request::GetDeviceID()), SYNC_FSSTATUS_SERVERERROR);
             }
             // Changes from backend are sent to the MemImporter and processed for the HierarchyCache.
             // The state which is saved is from the backend, as the MemImporter is only a proxy.
             $exporter = self::$backend->GetExporter();
             $exporter->Config($syncstate);
             $exporter->InitializeExporter($changesMem);
             // Stream all changes to the ImportExportChangesMem
             $maxExporttime = Request::GetExpectedConnectionTimeout();
             $totalChanges = $exporter->GetChangeCount();
             $started = time();
             $exported = 0;
             $partial = false;
             while (is_array($exporter->Synchronize())) {
                 $exported++;
                 if (time() % 4) {
                     self::$topCollector->AnnounceInformation(sprintf("Exported %d from %d folders", $exported, $totalChanges));
                 }
                 // if partial sync is allowed, stop if this takes too long
                 if (USE_PARTIAL_FOLDERSYNC && time() - $started > $maxExporttime) {
                     ZLog::Write(LOGLEVEL_WARN, sprintf("Request->HandleFolderSync(): Exporting folders is too slow. In %d seconds only %d from %d changes were processed.", time() - $started, $exported, $totalChanges));
                     self::$topCollector->AnnounceInformation(sprintf("Partial export of %d out of %d folders", $exported, $totalChanges), true);
                     self::$deviceManager->SetFolderSyncComplete(false);
                     $partial = true;
                     break;
                 }
             }
             // update the foldersync complete flag
             if (USE_PARTIAL_FOLDERSYNC && $partial == false && self::$deviceManager->GetFolderSyncComplete() === false) {
                 // say that we are done with partial synching
                 self::$deviceManager->SetFolderSyncComplete(true);
                 // reset the loop data to prevent any loop detection to kick in now
                 self::$deviceManager->ClearLoopDetectionData(Request::GetAuthUser(), Request::GetDeviceId());
                 ZLog::Write(LOGLEVEL_INFO, "Request->HandleFolderSync(): Chunked exporting of folders completed successfully");
             }
             // get the new state from the backend
             $newsyncstate = isset($exporter) ? $exporter->GetState() : "";
         } catch (StatusException $stex) {
             if ($stex->getCode() == SYNC_FSSTATUS_CODEUNKNOWN) {
                 $status = SYNC_FSSTATUS_SYNCKEYERROR;
             } else {
                 $status = $stex->getCode();
             }
         }
     }
     self::$encoder->startTag(SYNC_FOLDERHIERARCHY_STATUS);
     self::$encoder->content($status);
     self::$encoder->endTag();
     if ($status == SYNC_FSSTATUS_SUCCESS) {
         self::$encoder->startTag(SYNC_FOLDERHIERARCHY_SYNCKEY);
         $synckey = $changesMem->IsStateChanged() ? $newsynckey : $synckey;
         self::$encoder->content($synckey);
         self::$encoder->endTag();
         // Stream folders directly to the PDA
         $streamimporter = new ImportChangesStream(self::$encoder, false);
         $changesMem->InitializeExporter($streamimporter);
         $changeCount = $changesMem->GetChangeCount();
         self::$encoder->startTag(SYNC_FOLDERHIERARCHY_CHANGES);
         self::$encoder->startTag(SYNC_FOLDERHIERARCHY_COUNT);
         self::$encoder->content($changeCount);
         self::$encoder->endTag();
         while ($changesMem->Synchronize()) {
         }
         self::$encoder->endTag();
         self::$topCollector->AnnounceInformation(sprintf("Outgoing %d folders", $changeCount), true);
         // everything fine, save the sync state for the next time
         if ($synckey == $newsynckey) {
             self::$deviceManager->GetStateManager()->SetSyncState($newsynckey, $newsyncstate);
         }
     }
     self::$encoder->endTag();
     return true;
 }