On the sysmoBTS (ARM7TDMI) the parsing of a simple response
with quoted string takes up to 200ms. Parsing the single
digest line takes 40ms itself. Create a custom parser to
speed things up to avoid the backtracking between three
optional parsers that are combined in a choice.
Create a SIPIncomingCall and register the dialog. The "Via" and
remote handling is broken. The "respond with" is broken too. The
whole dialog/request passing to the UserAgent is broken and needs
to be fixed.
I nee to differentiate between incoming and outgoing calls. At
the same time a lot of logic can be shared. Specially at the
time the call is established the hangup will work the same on
both sides.
The code allows (and that looks like a good thing) to have a different
from and username in the authorization. The userString was not really
right as it was missing the URL part (sip/sips) and the splitting was
broken as well.
The Transport to UserAgent relationship is a one to one. E.g. we
need this to generate unique branch and call-ids to make sure the
dialogues are different. To be able to use multiple identities I
introduce a SIPIdentity class. Currently the user agent has one
main identity but this could change over time.
Add a testcase for testing ProxyAuthenticate and ProxyAuthorize,
extend the grammar and parser to handle the needed bits. Document
another error/failure with the dialog handling code and create a
testcase that fully connects a call.
We would need to have SIPParameter as a baseclass that works without
having a dataobject. Right now this is a duck-type as it implements
the used methods.
This only implements one of the possible approaches for the digest
handling. This is a very simple test and the choiche of the same
username/password was a bit unfortunate.
* Change the category for the tests and extensions
* Rewrite usages of >>nl and >>cr
* There are still issues with the Socket code, Datagram handling
and and expands.
* This isn't doing proper routing (e.g. the via is not modified
properly but we return it to the right address)
* An unknown BYE will be acked with a 481. The 'respondWith:...'
includes the wrong 'Allow:' but it is good enough from the
structure for now.
* Re-Order the loading of files as the SIPUserAgent is extended
the SIPRequests.
* Add the port/ip to the SIPDialog so that responding to the
request is possible.
Introduce a high level class that can create multiple transactions,
handles the sequence numbers, the dialogs, the opened session and
provides a nice call, hangup, cancel, terminate interface.
Add the grammar for the Via parameter, introduce a generic
array folding class to turn it into a string. Add a data holder
that returns the complete string but also the branch if that
is required.
Holger Hans Peter Freyther