/**
   * Initiate an image sharing session
   *
   * @param contact Contact
   * @param file Image file
   * @param thumbnail Thumbnail option
   * @throws ServerApiException
   */
  public IImageSharingSession initiateImageSharing(String contact, String file, boolean thumbnail)
      throws ServerApiException {
    if (logger.isActivated()) {
      logger.info("Initiate an image sharing session with " + contact);
    }

    // Check permission
    ServerApiUtils.testPermission();

    // Test IMS connection
    ServerApiUtils.testIms();

    try {
      // Create an image content
      FileDescription desc = FileFactory.getFactory().getFileDescription(file);
      MmContent content = ContentManager.createMmContentFromUrl(file, desc.getSize());

      // Initiate a sharing session
      ImageTransferSession session =
          Core.getInstance()
              .getRichcallService()
              .initiateImageSharingSession(contact, content, thumbnail);

      // Update rich call history
      RichCall.getInstance()
          .addCall(
              contact,
              session.getSessionID(),
              RichCallData.EVENT_OUTGOING,
              session.getContent(),
              RichCallData.STATUS_STARTED);

      // Add session in the list
      ImageSharingSession sessionApi = new ImageSharingSession(session);
      addImageSharingSession(sessionApi);
      return sessionApi;
    } catch (Exception e) {
      if (logger.isActivated()) {
        logger.error("Unexpected error", e);
      }
      throw new ServerApiException(e.getMessage());
    }
  }
  /**
   * Handle 200 0K response
   *
   * @param resp 200 OK response
   */
  public void handle200OK(SipResponse resp) {
    try {
      // 200 OK received
      if (logger.isActivated()) {
        logger.info("200 OK response received");
      }

      // The signalisation is established
      getDialogPath().sigEstablished();

      // Set the remote tag
      getDialogPath().setRemoteTag(resp.getToTag());

      // Set the target
      getDialogPath().setTarget(resp.getContactURI());

      // Set the route path with the Record-Route header
      Vector<String> newRoute = SipUtils.routeProcessing(resp, true);
      getDialogPath().setRoute(newRoute);

      // Set the remote SDP part
      getDialogPath().setRemoteContent(resp.getContent());

      // Parse the remote SDP part
      SdpParser parser = new SdpParser(getDialogPath().getRemoteContent().getBytes());
      Vector<MediaDescription> media = parser.getMediaDescriptions();
      MediaDescription mediaDesc = media.elementAt(0);
      MediaAttribute attr = mediaDesc.getMediaAttribute("path");
      String remoteMsrpPath = attr.getValue();
      String remoteHost = SdpUtils.extractRemoteHost(parser.sessionDescription.connectionInfo);
      int remotePort = mediaDesc.port;

      // Send ACK request
      if (logger.isActivated()) {
        logger.info("Send ACK");
      }
      getImsService().getImsModule().getSipManager().sendSipAck(getDialogPath());

      // The session is established
      getDialogPath().sessionEstablished();

      // Create the MSRP client session
      MsrpSession session =
          msrpMgr.createMsrpClientSession(remoteHost, remotePort, remoteMsrpPath, this);
      session.setFailureReportOption(false);
      session.setSuccessReportOption(true);

      // Open the MSRP session
      msrpMgr.openMsrpSession();

      // Start session timer
      if (getSessionTimerManager().isSessionTimerActivated(resp)) {
        getSessionTimerManager()
            .start(resp.getSessionTimerRefresher(), resp.getSessionTimerExpire());
      }

      // Notify listeners
      for (int i = 0; i < getListeners().size(); i++) {
        getListeners().get(i).handleSessionStarted();
      }

      // Start sending data chunks
      byte[] data = getContent().getData();
      InputStream stream;
      if (data == null) {
        // Load data from URL
        stream = FileFactory.getFactory().openFileInputStream(getContent().getUrl());
      } else {
        // Load data from memory
        stream = new ByteArrayInputStream(data);
      }
      msrpMgr.sendChunks(
          stream,
          ChatUtils.generateMessageId(),
          getContent().getEncoding(),
          getContent().getSize());
    } catch (Exception e) {
      if (logger.isActivated()) {
        logger.error("Session initiation has failed", e);
      }

      // Unexpected error
      handleError(new FileSharingError(FileSharingError.UNEXPECTED_EXCEPTION, e.getMessage()));
    }
  }
  /** Start core */
  public synchronized void startCore() {
    if (Core.getInstance() != null) {
      // Already started
      return;
    }

    try {
      if (logger.isActivated()) {
        logger.debug("Start RCS core service");
      }

      // Send service intent
      Intent intent = new Intent(ClientApiIntents.SERVICE_STATUS);
      intent.putExtra("status", ClientApiIntents.SERVICE_STATUS_STARTING);
      getApplicationContext().sendBroadcast(intent);

      // Terminal version
      if (logger.isActivated()) {
        logger.info("RCS stack release is " + TerminalInfo.getProductVersion());
      }

      // Instantiate the contacts manager
      ContactsManager.createInstance(getApplicationContext());

      // Instantiate the rich messaging history
      RichMessaging.createInstance(getApplicationContext());

      // Instantiate the rich call history
      RichCall.createInstance(getApplicationContext());

      // Instantiate the IP call history
      IPCall.createInstance(getApplicationContext());

      // Create the core
      Core.createCore(this);

      // Start the core
      Core.getInstance().startCore();

      // Create multimedia directory on sdcard
      FileFactory.createDirectory(RcsSettings.getInstance().getPhotoRootDirectory());
      FileFactory.createDirectory(RcsSettings.getInstance().getVideoRootDirectory());
      FileFactory.createDirectory(RcsSettings.getInstance().getFileRootDirectory());

      // Init CPU manager
      cpuManager.init();

      // Register account changed event receiver
      if (accountChangedReceiver == null) {
        accountChangedReceiver = new AccountChangedReceiver();

        // Register account changed broadcast receiver after a timeout of 2s (This is not done
        // immediately, as we do not want to catch
        // the removal of the account (creating and removing accounts is done asynchronously). We
        // can reasonably assume that no
        // RCS account deletion will be done by user during this amount of time, as he just started
        // his service.
        Handler handler = new Handler();
        handler.postDelayed(
            new Runnable() {
              public void run() {
                registerReceiver(
                    accountChangedReceiver,
                    new IntentFilter("android.accounts.LOGIN_ACCOUNTS_CHANGED"));
              }
            },
            2000);
      }

      // Register SMS receiver for network initiated configuration

      if (reconfSMSReceiver == null) {
        reconfSMSReceiver = new HttpsProvisioningSMS(this);
        reconfSMSReceiver.registerSmsProvisioningReceiver(
            Integer.toString(HttpsProvisioningUtils.DEFAULT_SMS_PORT), null, null, null);
      }

      // Show a first notification
      addRcsServiceNotification(false, getString(R.string.rcs_core_loaded));

      // Update GSMA client API
      GsmaUtils.setClientActivationState(getApplicationContext(), true);

      // Send service intent
      intent = new Intent(ClientApiIntents.SERVICE_STATUS);
      intent.putExtra("status", ClientApiIntents.SERVICE_STATUS_STARTED);
      getApplicationContext().sendBroadcast(intent);

      if (logger.isActivated()) {
        logger.info("RCS core service started with success");
      }
    } catch (Exception e) {
      // Unexpected error
      if (logger.isActivated()) {
        logger.error("Can't instanciate the RCS core service", e);
      }

      // Send service intent
      Intent intent = new Intent(ClientApiIntents.SERVICE_STATUS);
      intent.putExtra("status", ClientApiIntents.SERVICE_STATUS_FAILED);
      getApplicationContext().sendBroadcast(intent);

      // Show error in notification bar
      addRcsServiceNotification(false, getString(R.string.rcs_core_failed));

      // Exit service
      stopSelf();
    }
  }