def _handle_ABC(self, msg):
handler_name = msg.method.decode("utf-8").upper()
# check if Call-ID header exist
if not msg.header_exist(b"call-id"):
return
# Get Call-Id and check if there's already a SipSession
call_id = msg.headers.get(b"call-id").value
# ToDo: remove? we don't use it
# cseq = msg.headers.get(b"cseq").get_raw()
# Find SipSession and delete it
if call_id not in g_call_ids or g_call_ids[call_id] is None:
logger.warn("{!s} request does not match any existing SIP session".format(handler_name))
icd = incident("dionaea.modules.python.sip.command")
icd.con = self
msg_to_icd(msg,d=icd)
icd.report()
self.send(msg.create_response(rfc3261.CALL_TRANSACTION_DOSE_NOT_EXIST).dumps())
return
try:
g_call_ids[call_id].handle_msg_in(msg)
except AuthenticationError:
logger.warn("Authentication failed for {!s} request".format(handler_name))
def _handle_ABC(self, msg):
handler_name = msg.method.decode("utf-8").upper()
# check if Call-ID header exist
if not msg.header_exist(b"call-id"):
return
# Get Call-Id and check if there's already a SipSession
call_id = msg.headers.get(b"call-id").value
# ToDo: remove? we don't use it
# cseq = msg.headers.get(b"cseq").get_raw()
# Find SipSession and delete it
if call_id not in g_call_ids or g_call_ids[call_id] is None:
logger.warn(
"{!s} request does not match any existing SIP session".format(
handler_name))
icd = incident("dionaea.modules.python.sip.command")
icd.con = self
msg_to_icd(msg, d=icd)
icd.report()
self.send(
msg.create_response(
rfc3261.CALL_TRANSACTION_DOSE_NOT_EXIST).dumps())
return
try:
g_call_ids[call_id].handle_msg_in(msg)
except AuthenticationError:
logger.warn(
"Authentication failed for {!s} request".format(handler_name))
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_unknown(self, msg):
logger.debug("{!s} unknown".format(self))
logger.warn("Unknown SIP header: {}".format(repr(msg.method)[:128]))
icd = incident("dionaea.modules.python.sip.command")
icd.con = self
msg_to_icd(msg, d=icd)
icd.report()
res = msg.create_response(rfc3261.NOT_IMPLEMENTED)
res.dumps()
self.send(res.dumps())
def handle_unknown(self, msg):
logger.debug("{!s} unknown".format(self))
logger.warn("Unknown SIP header: {}".format(repr(msg.method)[:128]))
icd = incident("dionaea.modules.python.sip.command")
icd.con = self
msg_to_icd(msg, d=icd)
icd.report()
res = msg.create_response(rfc3261.NOT_IMPLEMENTED)
res.dumps()
self.send(res.dumps())
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_msg_in(self, msg):
self._timers["idle"].reset()
self._msg_stack.append(("in", msg))
icd = incident("dionaea.modules.python.sip.command")
icd.con = self
msg_to_icd(msg,d=icd)
icd.report()
handler_name = msg.method.decode("utf-8").upper()
try:
func = getattr(self, "handle_" + handler_name, None)
except:
func = None
if func is not None and callable(func) == True:
func(msg)
def handle_msg_in(self, msg):
self._timers["idle"].reset()
self._msg_stack.append(("in", msg))
icd = incident("dionaea.modules.python.sip.command")
icd.con = self
msg_to_icd(msg, d=icd)
icd.report()
handler_name = msg.method.decode("utf-8").upper()
try:
func = getattr(self, "handle_" + handler_name, None)
except:
func = None
if func is not None and callable(func) == True:
func(msg)
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())
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())
