Moving this to resip-devel:
Hmm, it looks like we're tripping over the code that is meant to distinguish "Accept: " from the absence of an Accept header (or other headers of that type; Allow, Allow-Events, etc). These are all multi-value headers.
Should we really be doing this for single-value headers? I don't think we should. If we get a single value header that is empty, we should not be representing it as an empty list. Can anyone think of a counter-example where an empty single-value header needs to be fundamentally conceptually different than a normal single-value header?
Best regards, Byron Campen Thank you Byron, but same problem, this is my code: Data subject; if (sub.exists(h_Subject)==true && sub.header(h_Subject).isWellFormed()==true) { subject = sub.header(h_Subject).value(); } On Thu, Jul 24, 2008 at 10:42 PM, Byron Campen < bcampen@xxxxxxxxxxxx> wrote: You need to throw in a sub.header(h_Subject).isWellFormed() in that check, ie:
Data subject;
if (sub.exists(h_Subject)==true && sub.header(h_Subject).isWellFormed() && sub.header(h_Subject).value().empty()==false)
{
subject = sub.header(h_Subject).value();
}
Best regards, Byron Campen Hi all, I think I found a bug:
1: I using the counterpath Bria to send a presence SUBSCRIBE to my UA.
2: I use wireshark to capture the SUBSCRIBE message, saw it has Subject header, but this header value is empty.
3: onNewSubscription(ServerSubscriptionHandle h, const SipMessage& sub) call back is fired, then I use this code to access the Subject header:
Data subject;
if (sub.exists(h_Subject)==true && sub.header(h_Subject).value().empty()==false)
{
subject = sub.header(h_Subject).value();
}
When running to sub.header(h_Subject).value().empty()==false, the VC2005 debuger go to dialogusagemanager.cxx line 1778:
catch (BaseException& e)
{
SipMessage failure; <----------- it's go to here
makeResponse(failure, request, 400, e.getMessage());
failure.header(h_AcceptLanguages) = getMasterProfile()->getSupportedLanguages();
sendResponse(failure);
}
If the subject header value is not empty, then all are ok.
thanks
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