def parseSegwit(self, payload, opts):
if decodeVarLength(payload) == 0:
return False
self.is_segwit = True
txInputCount = decodeVarLength(payload)
for _i in range(0, txInputCount):
prev_out = (payload.read(32)[::-1],
struct.unpack("<I", payload.read(4))[0])
script_length = decodeVarLength(payload)
script = payload.read(script_length)
sequence, = struct.unpack("<I", payload.read(4))
self.inputs.append((prev_out, script, sequence))
txOutputCount = decodeVarLength(payload)
for _i in range(0, txOutputCount):
value, = struct.unpack("<Q", payload.read(8))
script = decodeVarString(payload)
self.outputs.append((value, script))
for i in range(0, txInputCount):
nelements = decodeVarLength(payload)
self.witnesses.append(
[decodeVarString(payload) for _ in range(nelements)])
self.lock_time, = struct.unpack("<I", payload.read(4))
return True
def parseSegwit(self, payload, opts):
if decodeVarLength(payload) == 0:
return False
self.is_segwit = True
txInputCount = decodeVarLength(payload)
for _i in range(0, txInputCount):
prev_out = (
payload.read(32)[::-1],
struct.unpack("<I", payload.read(4))[0]
)
script_length = decodeVarLength(payload)
script = payload.read(script_length)
sequence, = struct.unpack("<I", payload.read(4))
self.inputs.append((prev_out, script, sequence))
txOutputCount = decodeVarLength(payload)
for _i in range(0, txOutputCount):
value, = struct.unpack("<Q", payload.read(8))
script = decodeVarString(payload)
self.outputs.append((value, script))
for i in range(0, txInputCount):
nelements = decodeVarLength(payload)
self.witnesses.append([decodeVarString(payload) for _ in range(nelements)])
self.lock_time, = struct.unpack("<I", payload.read(4))
return True
def parse(self, payload, opts):
Packet.parse(self, payload, opts)
self.version, = struct.unpack("<I", payload.read(4))
txInputCount = decodeVarLength(payload)
if txInputCount == 0:
return self.parseSegwit(payload, opts)
for _i in range(0, txInputCount):
prev_out = (
payload.read(32)[::-1],
struct.unpack("<I", payload.read(4))[0]
)
script_length = decodeVarLength(payload)
script = payload.read(script_length)
sequence, = struct.unpack("<I", payload.read(4))
self.inputs.append((prev_out, script, sequence))
txOutputCount = decodeVarLength(payload)
for _i in range(0, txOutputCount):
value, = struct.unpack("<Q", payload.read(8))
script = decodeVarString(payload)
self.outputs.append((value, script))
self.lock_time, = struct.unpack("<I", payload.read(4))
return True
def parse(self, payload, unused_version=None):
Packet.parse(self, payload, unused_version)
self.version, self.services, self.timestamp = struct.unpack(
"<IQQ", payload.read(20))
version = self.version
if version >= 106:
self.addr_recv = Address()
self.addr_recv.parse(payload, False)
self.addr_from = Address()
self.addr_from.parse(payload, False)
self.nonce = payload.read(8)
self.user_agent = decodeVarString(payload)
self.best_height, = struct.unpack("<I", payload.read(4))
if version >= 70001:
relay_flag, = struct.unpack('B', payload.read(1))
self.relay = bool(relay_flag & 1)
def parse(self, payload, opts=None):
Packet.parse(self, payload, opts)
self.version, self.services, self.timestamp = struct.unpack(
"<IQQ", payload.read(20))
if self.version >= 106:
# Pretend to be version 0, this doesn't include timestamps yet.
self.addr_recv = Address()
self.addr_recv.parse(payload, {'version': 0})
self.addr_from = Address()
self.addr_from.parse(payload, {'version': 0})
self.nonce = payload.read(8)
self.user_agent = decodeVarString(payload)
self.best_height, = struct.unpack("<I", payload.read(4))
if self.version >= 70001:
relay_flag = payload.read(1)
# Some clients advertise 70001 but then do not include a relay_flag
if len(relay_flag):
self.relay = bool(struct.unpack('B', relay_flag)[0] & 1)
def parse(self, payload, opts=None):
Packet.parse(self, payload, opts)
self.version, self.services, self.timestamp = struct.unpack(
"<IQQ", payload.read(20))
if self.version >= 106:
# Pretend to be version 0, this doesn't include timestamps yet.
self.addr_recv = Address()
self.addr_recv.parse(payload, {'version': 0})
self.addr_from = Address()
self.addr_from.parse(payload, {'version': 0})
self.nonce = payload.read(8)
self.user_agent = decodeVarString(payload)
self.best_height, = struct.unpack("<I", payload.read(4))
if self.version >= 70001:
relay_flag = payload.read(1)
# Some clients advertise 70001 but then do not include a relay_flag
if len(relay_flag):
self.relay = bool(struct.unpack('B', relay_flag)[0] & 1)
def parse(self, payload, opts):
Packet.parse(self, payload, opts)
self.bloom_filter_capacity, = struct.unpack('<I', payload.read(4))
self.fpr, = struct.unpack('<I', payload.read(4))
self.fpr /= self.fpr_mul
self.bloom_filter = decodeVarString(payload)
self.iblt_m, = struct.unpack('<I', payload.read(4))
self.iblt_T = []
for i in range(self.iblt_m):
count, = struct.unpack('<I', payload.read(4))
key_sum, = struct.unpack('<32s', payload.read(32))
# value_sum, = struct.unpack('<32s', payload.read(32))
value_sum = b''
key_hash_sum, = struct.unpack('<10s', payload.read(10))
self.iblt_T.append([
count,
self.to_bitarray(key_sum),
self.to_bitarray(value_sum),
self.to_bitarray(key_hash_sum)
])
def parse(self, payload, opts):
Packet.parse(self, payload, opts)
self.version, = struct.unpack("<I", payload.read(4))
txInputCount = decodeVarLength(payload)
if txInputCount == 0:
return self.parseSegwit(payload, opts)
for _i in range(0, txInputCount):
prev_out = (payload.read(32)[::-1],
struct.unpack("<I", payload.read(4))[0])
script_length = decodeVarLength(payload)
script = payload.read(script_length)
sequence, = struct.unpack("<I", payload.read(4))
self.inputs.append((prev_out, script, sequence))
txOutputCount = decodeVarLength(payload)
for _i in range(0, txOutputCount):
value, = struct.unpack("<Q", payload.read(8))
script = decodeVarString(payload)
self.outputs.append((value, script))
self.lock_time, = struct.unpack("<I", payload.read(4))
return True
