def handle_OPTIONS(self, msg):
logger.debug("{!s} handle_OPTIONS".format(self))
icd = incident("dionaea.modules.python.sip.command")
icd.con = self
msg_to_icd(msg,d=icd)
icd.report()
res = msg.create_response(rfc3261.OK)
res.headers.append(rfc3261.Header(name="Accept", value="application/sdp"))
res.headers.append(rfc3261.Header(name="Accept-Language", value="en"))
self.send(res.dumps())
def handle_REGISTER(self, msg):
"""
:See: http://tools.ietf.org/html/rfc3261#section-10
"""
logger.debug("{!s} handle_REGISTER".format(self))
icd = incident("dionaea.modules.python.sip.command")
icd.con = self
msg_to_icd(msg, d=icd)
icd.report()
# ToDo: check for request-uri?
if not msg.headers_exist([b"to", b"from", b"call-id", b"cseq"]):
logger.warn("REGISTER, header missing")
# ToDo: return error
return
to = msg.headers.get(b"to")
user_id = to.get_raw().uri.user
u = self.config.get_user_by_username(self.personality, user_id)
# given user not found
if u is None:
res = msg.create_response(rfc3261.NOT_FOUND)
self.send(res.dumps())
return
if u.password is not None and u.password != "":
header_auth = msg.headers.get(b"authorization", None)
if header_auth is None or self._auth is None:
# ToDo: change nonce
self._auth = rfc2617.Authentication(method="digest",
algorithm="md5",
nonce="foobar123",
realm=u.realm)
res = msg.create_response(rfc3261.UNAUTHORIZED)
res.headers.append(
rfc3261.Header(name=b"www-authenticate", value=self._auth))
self.send(res.dumps())
return
auth_response = rfc2617.Authentication.froms(header_auth[0].value)
# ToDo: change realm
if not self._auth.check(u.username, u.password, "REGISTER",
auth_response):
# ToDo: change nonce
self._auth = rfc2617.Authentication(method="digest",
algorithm="md5",
nonce=b"foobar123",
realm=u.realm)
res = msg.create_response(rfc3261.UNAUTHORIZED)
res.headers.append(
rfc3261.Header(name=b"www-authenticate", value=self._auth))
self.send(res.dumps())
return
# ToDo: Report authentication incident
#i = incident("dionaea.modules.python.sip.authentication")
#i.authenticationSuccessful = expected == authLineDict['response']
#i.realm = realm
#i.uri = uri
#i.nonce = authLineDict['nonce']
#i.challengeResponse = authLineDict['response']
#i.expected = expected
#i.report()
user = User(user_id, msg=msg)
g_reg_manager.register(user)
res = msg.create_response(rfc3261.OK)
self.send(res.dumps())