/**
* Receive an image sharing invitation
*
* @param invite Initial invite
*/
public void receiveImageSharingInvitation(SipRequest invite) {
if (logger.isActivated()) {
logger.info("Receive an image sharing session invitation");
}
// Test if call is established
if (!getImsModule().getCallManager().isCallConnected()) {
if (logger.isActivated()) {
logger.debug("Rich call not established: reject the invitation");
}
sendErrorResponse(invite, 606);
return;
}
// Reject if there are already 2 bidirectional sessions with a given contact
boolean rejectInvitation = false;
String contact = SipUtils.getAssertedIdentity(invite);
Vector<ContentSharingSession> currentSessions = getCShSessions();
if (currentSessions.size() >= 2) {
// Already a bidirectional session
if (logger.isActivated()) {
logger.debug("Max sessions reached");
}
rejectInvitation = true;
} else if (currentSessions.size() == 1) {
ContentSharingSession currentSession = currentSessions.elementAt(0);
if (currentSession instanceof TerminatingImageTransferSession) {
// Terminating session already used
if (logger.isActivated()) {
logger.debug("Max terminating sessions reached");
}
rejectInvitation = true;
} else if (!PhoneUtils.compareNumbers(contact, currentSession.getRemoteContact())) {
// Not the same contact
if (logger.isActivated()) {
logger.debug("Only bidirectional session with same contact authorized");
}
rejectInvitation = true;
}
}
if (rejectInvitation) {
if (logger.isActivated()) {
logger.debug("The max number of sharing sessions is achieved: reject the invitation");
}
sendErrorResponse(invite, 486);
return;
}
// Create a new session
ImageTransferSession session = new TerminatingImageTransferSession(this, invite);
// Start the session
session.startSession();
// Notify listener
getImsModule().getCore().getListener().handleContentSharingTransferInvitation(session);
}
