UtlBoolean SipDialogMgr::isNewRemoteTransaction(const SipMessage& message)
{
UtlBoolean matchesTransaction = FALSE;
UtlString handle;
SipDialog::getDialogHandle(message, handle);
UtlString callId;
UtlString fromTag;
UtlString toTag;
Url fromField;
Url toField;
message.getFromUrl(fromField);
message.getToUrl(toField);
message.getCallIdField(callId);
fromField.getFieldParameter("tag", fromTag);
toField.getFieldParameter("tag", toTag);
lock();
// Looking for any dialog that matches this handle
SipDialog* dialog = findDialog(handle,
TRUE, // if established, match early dialog
TRUE); // if early, match established dialog
if(dialog &&
dialog->isTransactionRemotelyInitiated(callId, fromTag, toTag) &&
dialog->isNextRemoteCseq(message))
{
matchesTransaction = TRUE;
}
unlock();
return(matchesTransaction);
}
enum SipDialogMgr::transactionSequence
SipDialogMgr::isNewRemoteTransaction(const SipMessage& message)
{
enum transactionSequence ordering;
UtlString handle;
message.getDialogHandle(handle);
UtlString callId;
UtlString fromTag;
UtlString toTag;
SipDialog::parseHandle(handle, callId, fromTag, toTag);
lock();
// Looking for any dialog that matches this handle
SipDialog* dialog = findDialog(handle,
TRUE, // if established, match early dialog
TRUE); // if early, match established dialog
if (dialog &&
dialog->isTransactionRemotelyInitiated(callId, fromTag, toTag))
{
int messageCSeq;
message.getCSeqField(&messageCSeq, NULL);
int lastRemoteCSeq = dialog->getLastRemoteCseq();
ordering =
messageCSeq < lastRemoteCSeq ? OUT_OF_ORDER :
/** If this message was an exact duplicate of a previous message
* (with the same CSeq and branch parameter), it would have been
* absorbed earlier in processing. So we know the branch parameter
* is different without having to remember the previous value.
*/
messageCSeq == lastRemoteCSeq ? LOOPED :
IN_ORDER;
}
else
{
ordering = NO_DIALOG;
}
unlock();
return ordering;
}
