def __call__(ctx, qname, qtype=A, qclass=IN, server=server[0]):
ctx = type.__call__(ctx)
transport = yield udp.connect(server, 'domain')()
query = message()
query.id = '\0\0'
query.qr = 0
query.opcode = 0
query.aa = 0
query.tc = 0
query.rd = 1
query.ra = 0
query.z = 0
query.rcode = 0
query.question.append(question(qname, qtype, qclass))
transport.write(str(query))
ctx.recv = yield transport.recv()
response = message()
response.id = ctx.recv[:2]
response.qr = ord(ctx.recv[2]) >> 7
response.opcode = ord(ctx.recv[2]) >> 3 & 0xf
response.aa = ord(ctx.recv[2]) >> 2 & 1
response.tc = ord(ctx.recv[2]) >> 1 & 1
response.rd = ord(ctx.recv[2]) & 1
response.ra = ord(ctx.recv[3]) >> 7
response.z = ord(ctx.recv[3]) >> 4 & 7
response.rcode = ord(ctx.recv[3]) & 0xf
qdcount = ord(ctx.recv[4]) << 8 | ord(ctx.recv[5])
ancount = ord(ctx.recv[6]) << 8 | ord(ctx.recv[7])
nscount = ord(ctx.recv[8]) << 8 | ord(ctx.recv[9])
arcount = ord(ctx.recv[10]) << 8 | ord(ctx.recv[11])
ctx.offset = 12
for _ in range(qdcount):
response.question.append(ctx.question(ctx.offset))
for _ in range(ancount):
response.answer.append(ctx.rr(ctx.offset))
for _ in range(nscount):
response.authority.append(ctx.rr(ctx.offset))
for _ in range(arcount):
response.additional.append(ctx.rr(ctx.offset))
if response.rcode:
raise response
#return ...
raise StopIteration(response)
def client(method, requestUri, initiator):
match = qwer(rfc3261.requestUri,
'$').match(requestUri, '( host, hostname, maddrParam, port )')
# We define TARGET as the value of the maddr parameter of the URI, if
# present, otherwise, the host value of the hostport component of the URI
if match.maddrParam:
target = match.maddrParam.host
else:
target = match.host
if match.port:
port = match.port
elif target.hostname:
try:
result = yield dns.lookup('_sip._udp.' + str(target), dns.SRV)
except dns.message as e:
if dns.nameError != e.rcode:
raise
port = 'sip'
else:
target = result.answer.target
port = result.answer.port
else:
port = 'sip'
transport = yield udp.connect(str(target), port)()
asdf = request()
asdf.method = method
asdf.requestUri = requestUri
asdf.sipVersion = 'SIP/2.0'
asdf.header.append('To', requestUri)
asdf.header.append(
'From', initiator + ';tag=' + untwisted.randstr(
6,
'!%\'*+-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_`abcdefghijklmnopqrstuvwxyz~'
))
asdf.header.append(
'Call-ID',
untwisted.randstr(
6,
'!"%\'()*+-./0123456789:<>?ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]_`abcdefghijklmnopqrstuvwxyz{}~'
) + '@' + domain)
asdf.header.append('CSeq', '0 ' + method)
# A UAC MUST insert a Max-Forwards header field into each request it
# originates with a value that SHOULD be 70
asdf.header.append('Max-Forwards', '70')
host, port = transport.socket.getsockname()
sentBy = host + ':' + str(port)
# The branch ID inserted by an element compliant with this specification MUST
# always begin with the characters "z9hG4bK"
#asdf.header.append('Via', 'SIP/2.0/UDP {};branch=z9hG4bK'.format(sentBy) + untwisted.randstr(6, '!%\'*+-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_`abcdefghijklmnopqrstuvwxyz~'))
asdf.header.append(
'Via',
'SIP/2.0/UDP {0};branch=z9hG4bK'.format(sentBy) + untwisted.randstr(
6,
'!%\'*+-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_`abcdefghijklmnopqrstuvwxyz~'
))
asdf.content = ''
transport.write(str(asdf))
while True:
recv = yield transport.recv()
match = rfc3261.response.match(
recv, '( sipVersion, statusCode, reasonPhrase, messageBody )')
if int(match.statusCode) not in range(100, 200):
result = response()
result.sipVersion = str(match.sipVersion)
result.statusCode = int(match.statusCode)
result.reasonPhrase = str(match.reasonPhrase)
result.content = str(match.messageBody)
if int(result) not in range(200, 300):
raise result
#return ...
raise StopIteration(result)
def __call__(ctx, qname, qtype=A, qclass=IN, server=server[0]):
ctx = type.__call__(ctx)
transport = yield udp.connect(server, 'domain')()
query = message()
query.id = '\0\0'
query.qr = 0
query.opcode = 0
query.aa = 0
query.tc = 0
query.rd = 1
query.ra = 0
query.z = 0
query.rcode = 0
query.question.append(question(qname, qtype, qclass))
transport.write(str(query))
ctx.recv = yield transport.recv()
response = message()
response.id = ctx.recv[:2]
response.qr = ord(ctx.recv[2]) >> 7
response.opcode = ord(ctx.recv[2]) >> 3 & 0xf
response.aa = ord(ctx.recv[2]) >> 2 & 1
response.tc = ord(ctx.recv[2]) >> 1 & 1
response.rd = ord(ctx.recv[2]) & 1
response.ra = ord(ctx.recv[3]) >> 7
response.z = ord(ctx.recv[3]) >> 4 & 7
response.rcode = ord(ctx.recv[3]) & 0xf
qdcount = ord(ctx.recv[4]) << 8 | ord(ctx.recv[5])
ancount = ord(ctx.recv[6]) << 8 | ord(ctx.recv[7])
nscount = ord(ctx.recv[8]) << 8 | ord(ctx.recv[9])
arcount = ord(ctx.recv[10]) << 8 | ord(ctx.recv[11])
ctx.offset = 12
for _ in range(qdcount):
response.question.append(ctx.question(ctx.offset))
for _ in range(ancount):
response.answer.append(ctx.rr(ctx.offset))
for _ in range(nscount):
response.authority.append(ctx.rr(ctx.offset))
for _ in range(arcount):
response.additional.append(ctx.rr(ctx.offset))
if response.rcode:
raise response
#return ...
raise StopIteration(response)
def client(method, requestUri, initiator):
match = qwer(rfc3261.requestUri, '$').match(requestUri, '( host, hostname, maddrParam, port )')
# We define TARGET as the value of the maddr parameter of the URI, if
# present, otherwise, the host value of the hostport component of the URI
if match.maddrParam:
target = match.maddrParam.host
else:
target = match.host
if match.port:
port = match.port
elif target.hostname:
try:
result = yield dns.lookup('_sip._udp.' + str(target), dns.SRV)
except dns.message as e:
if dns.nameError != e.rcode:
raise
port = 'sip'
else:
target = result.answer.target
port = result.answer.port
else:
port = 'sip'
transport = yield udp.connect(str(target), port)()
asdf = request()
asdf.method = method
asdf.requestUri = requestUri
asdf.sipVersion = 'SIP/2.0'
asdf.header.append('To', requestUri)
asdf.header.append('From', initiator + ';tag=' + untwisted.randstr(6, '!%\'*+-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_`abcdefghijklmnopqrstuvwxyz~'))
asdf.header.append('Call-ID', untwisted.randstr(6, '!"%\'()*+-./0123456789:<>?ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]_`abcdefghijklmnopqrstuvwxyz{}~') + '@' + domain)
asdf.header.append('CSeq', '0 ' + method)
# A UAC MUST insert a Max-Forwards header field into each request it
# originates with a value that SHOULD be 70
asdf.header.append('Max-Forwards', '70')
host, port = transport.socket.getsockname()
sentBy = host + ':' + str(port)
# The branch ID inserted by an element compliant with this specification MUST
# always begin with the characters "z9hG4bK"
#asdf.header.append('Via', 'SIP/2.0/UDP {};branch=z9hG4bK'.format(sentBy) + untwisted.randstr(6, '!%\'*+-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_`abcdefghijklmnopqrstuvwxyz~'))
asdf.header.append('Via', 'SIP/2.0/UDP {0};branch=z9hG4bK'.format(sentBy) + untwisted.randstr(6, '!%\'*+-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_`abcdefghijklmnopqrstuvwxyz~'))
asdf.content = ''
transport.write(str(asdf))
while True:
recv = yield transport.recv()
match = rfc3261.response.match(recv, '( sipVersion, statusCode, reasonPhrase, messageBody )')
if int(match.statusCode) not in range(100, 200):
result = response()
result.sipVersion = str(match.sipVersion)
result.statusCode = int(match.statusCode)
result.reasonPhrase = str(match.reasonPhrase)
result.content = str(match.messageBody)
if int(result) not in range(200, 300):
raise result
#return ...
raise StopIteration(result)
def request(server, messageMethod=binding):
try:
transport = yield udp.connect(server, 'stun')()
# Avoid error: service/proto not found
except socket.error:
transport = yield udp.connect(server, 3478)()
request = message()
request.messageMethod = messageMethod
request.messageClass = 0x0000
request.magicCookie = '\x21\x12\xa4\x42'
request.transactionId = os.urandom(12)
transport.write(str(request))
recv = yield transport.recv()
response = message()
response.messageMethod = ord(recv[0]) << 6 & 0xf800 | ord(recv[1]) >> 1 & 0xf0 | ord(recv[1]) & 0xf
response.messageClass = ord(recv[0]) << 8 & 0x100 | ord(recv[1]) & 0x10
response.magicCookie = recv[4:8]
response.transactionId = recv[8:20]
recv = recv[20:]
while recv:
type = ord(recv[0]) << 8 | ord(recv[1])
length = ord(recv[2]) << 8 | ord(recv[3])
itm = attribute(recv[4:4 + length])
# Each STUN attribute MUST end on a 32-bit boundary
recv = recv[4 + length - length % -4:]
if type in (MAPPED_ADDRESS, ALTERNATE_SERVER):
# 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# |0 0 0 0 0 0 0 0| Family | Port |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# | Address (32 bits or 128 bits) |
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
itm.family = ord(itm.value[1])
itm.port = ord(itm.value[2]) << 8 | ord(itm.value[3])
if IPv4 == itm.family:
itm.address = socket.inet_ntop(socket.AF_INET, itm.value[4:])
elif IPv6 == itm.family:
itm.address = socket.inet_ntop(socket.AF_INET6, itm.value[4:])
elif ERROR_CODE == type:
# 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Reserved, should be 0 |Class| Number |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Reason Phrase (variable) ...
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
itm['class'] = ord(itm.value[2])
itm.number = ord(itm.value[3])
itm.reasonPhrase = itm.value[4:]
elif UNKNOWN_ATTRIBUTES == type:
# 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Attribute 1 Type | Attribute 2 Type |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Attribute 3 Type | Attribute 4 Type ...
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
itm.attributeType = untwisted.oneMany(*(ord(itm.value[offset]) << 8 | ord(itm.value[offset + 1]) for offset in range(0, len(itm.value), 2)))
elif XOR_MAPPED_ADDRESS == type:
# 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# |0 0 0 0 0 0 0 0| Family | X-Port |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# | X-Address (32 bits or 128 bits) |
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
itm.family = ord(itm.value[1])
itm.port = (ord(itm.value[2]) ^ ord(response.magicCookie[0])) << 8 | ord(itm.value[3]) ^ ord(response.magicCookie[1])
if IPv4 == itm.family:
itm.address = socket.inet_ntop(socket.AF_INET, ''.join(chr(ord(address) ^ ord(magicCookie)) for address, magicCookie in zip(itm.value[4:], response.magicCookie)))
elif IPv6 == itm.family:
itm.address = socket.inet_ntop(socket.AF_INET6, ''.join(chr(ord(address) ^ ord(magicCookie)) for address, magicCookie in zip(itm.value[4:], response.magicCookie + response.transactionId)))
response.attribute.append(type, itm)
if 0x0100 != response.messageClass:
raise response
#return ...
raise StopIteration(response)
def request(server, messageMethod=binding):
try:
transport = yield udp.connect(server, 'stun')()
# Avoid error: service/proto not found
except socket.error:
transport = yield udp.connect(server, 3478)()
request = message()
request.messageMethod = messageMethod
request.messageClass = 0x0000
request.magicCookie = '\x21\x12\xa4\x42'
request.transactionId = os.urandom(12)
transport.write(str(request))
recv = yield transport.recv()
response = message()
response.messageMethod = ord(recv[0]) << 6 & 0xf800 | ord(
recv[1]) >> 1 & 0xf0 | ord(recv[1]) & 0xf
response.messageClass = ord(recv[0]) << 8 & 0x100 | ord(recv[1]) & 0x10
response.magicCookie = recv[4:8]
response.transactionId = recv[8:20]
recv = recv[20:]
while recv:
type = ord(recv[0]) << 8 | ord(recv[1])
length = ord(recv[2]) << 8 | ord(recv[3])
itm = attribute(recv[4:4 + length])
# Each STUN attribute MUST end on a 32-bit boundary
recv = recv[4 + length - length % -4:]
if type in (MAPPED_ADDRESS, ALTERNATE_SERVER):
# 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# |0 0 0 0 0 0 0 0| Family | Port |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# | Address (32 bits or 128 bits) |
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
itm.family = ord(itm.value[1])
itm.port = ord(itm.value[2]) << 8 | ord(itm.value[3])
if IPv4 == itm.family:
itm.address = socket.inet_ntop(socket.AF_INET, itm.value[4:])
elif IPv6 == itm.family:
itm.address = socket.inet_ntop(socket.AF_INET6, itm.value[4:])
elif ERROR_CODE == type:
# 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Reserved, should be 0 |Class| Number |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Reason Phrase (variable) ...
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
itm['class'] = ord(itm.value[2])
itm.number = ord(itm.value[3])
itm.reasonPhrase = itm.value[4:]
elif UNKNOWN_ATTRIBUTES == type:
# 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Attribute 1 Type | Attribute 2 Type |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | Attribute 3 Type | Attribute 4 Type ...
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
itm.attributeType = untwisted.oneMany(
*(ord(itm.value[offset]) << 8 | ord(itm.value[offset + 1])
for offset in range(0, len(itm.value), 2)))
elif XOR_MAPPED_ADDRESS == type:
# 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# |0 0 0 0 0 0 0 0| Family | X-Port |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
# | |
# | X-Address (32 bits or 128 bits) |
# | |
# +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
itm.family = ord(itm.value[1])
itm.port = (ord(itm.value[2])
^ ord(response.magicCookie[0])) << 8 | ord(
itm.value[3]) ^ ord(response.magicCookie[1])
if IPv4 == itm.family:
itm.address = socket.inet_ntop(
socket.AF_INET, ''.join(
chr(ord(address) ^ ord(magicCookie))
for address, magicCookie in zip(
itm.value[4:], response.magicCookie)))
elif IPv6 == itm.family:
itm.address = socket.inet_ntop(
socket.AF_INET6, ''.join(
chr(ord(address) ^ ord(magicCookie))
for address, magicCookie in zip(
itm.value[4:], response.magicCookie +
response.transactionId)))
response.attribute.append(type, itm)
if 0x0100 != response.messageClass:
raise response
#return ...
raise StopIteration(response)