def stream_deserialize(cls, f, protover=PROTO_VERSION):
recvbuf = ser_read(f, 4 + 12 + 4 + 4)
# check magic
if recvbuf[:4] != bitcoin.params.MESSAGE_START:
raise ValueError("Invalid message start '%s', expected '%s'" %
(b2x(recvbuf[:4]), b2x(bitcoin.params.MESSAGE_START)))
# remaining header fields: command, msg length, checksum
command = recvbuf[4:4+12].split(b"\x00", 1)[0]
msglen = struct.unpack(b"<i", recvbuf[4+12:4+12+4])[0]
checksum = recvbuf[4+12+4:4+12+4+4]
# read message body
recvbuf += ser_read(f, msglen)
msg = recvbuf[4+12+4+4:4+12+4+4+msglen]
th = hashlib.sha256(msg).digest()
h = hashlib.sha256(th).digest()
if checksum != h[:4]:
raise ValueError("got bad checksum %s" % repr(recvbuf))
if command in messagemap:
cls_map = messagemap[command]
# print("Going to deserialize '%s'" % msg)
return cls_map.msg_deser(_BytesIO(msg))
else:
print("Command '%s' not in messagemap" % repr(command))
return None
def stream_deserialize(cls, f, protover=PROTO_VERSION):
recvbuf = ser_read(f, 4 + 12 + 4 + 4)
# check magic
if recvbuf[:4] != bitcoin.params.MESSAGE_START:
raise ValueError(
"Invalid message start '%s', expected '%s'" % (b2x(recvbuf[:4]), b2x(bitcoin.params.MESSAGE_START))
)
# remaining header fields: command, msg length, checksum
command = recvbuf[4 : 4 + 12].split(b"\x00", 1)[0]
msglen = struct.unpack(b"<i", recvbuf[4 + 12 : 4 + 12 + 4])[0]
checksum = recvbuf[4 + 12 + 4 : 4 + 12 + 4 + 4]
# read message body
recvbuf += ser_read(f, msglen)
msg = recvbuf[4 + 12 + 4 + 4 : 4 + 12 + 4 + 4 + msglen]
th = hashlib.sha256(msg).digest()
h = hashlib.sha256(th).digest()
if checksum != h[:4]:
raise ValueError("got bad checksum %s" % repr(recvbuf))
if command in messagemap:
cls_map = messagemap[command]
# print("Going to deserialize '%s'" % msg)
return cls_map.msg_deser(_BytesIO(msg))
else:
print("Command '%s' not in messagemap" % repr(command))
return None
def msg_deser(cls, f, protover=PROTO_VERSION):
c = cls()
c.nVersion = struct.unpack(b"<i", ser_read(f, 4))[0]
if c.nVersion == 10300:
c.nVersion = 300
c.nServices = struct.unpack(b"<Q", ser_read(f, 8))[0]
c.nTime = struct.unpack(b"<q", ser_read(f, 8))[0]
c.addrTo = CAddress.stream_deserialize(f, True)
if c.nVersion >= 106:
c.addrFrom = CAddress.stream_deserialize(f, True)
c.nNonce = struct.unpack(b"<Q", ser_read(f, 8))[0]
c.strSubVer = VarStringSerializer.stream_deserialize(f)
if c.nVersion >= 209:
c.nStartingHeight = struct.unpack(b"<i", ser_read(f,4))[0]
else:
c.nStartingHeight = None
else:
c.addrFrom = None
c.nNonce = None
c.strSubVer = None
c.nStartingHeight = None
return c
def msg_deser(cls, f, protover=PROTO_VERSION):
c = cls()
c.nVersion = struct.unpack(b"<i", ser_read(f, 4))[0]
if c.nVersion == 10300:
c.nVersion = 300
c.nServices = struct.unpack(b"<Q", ser_read(f, 8))[0]
c.nTime = struct.unpack(b"<q", ser_read(f, 8))[0]
c.addrTo = CAddress.stream_deserialize(f, True)
if c.nVersion >= 106:
c.addrFrom = CAddress.stream_deserialize(f, True)
c.nNonce = struct.unpack(b"<Q", ser_read(f, 8))[0]
c.strSubVer = VarStringSerializer.stream_deserialize(f)
if c.nVersion >= 209:
c.nStartingHeight = struct.unpack(b"<i", ser_read(f, 4))[0]
else:
c.nStartingHeight = None
else:
c.addrFrom = None
c.nNonce = None
c.strSubVer = None
c.nStartingHeight = None
return c
def msg_deser(cls, f, protover=PROTO_VERSION):
c = cls()
c.message = VarStringSerializer.stream_deserialize(f)
c.ccode = struct.unpack(b"<c", ser_read(f,1))[0]
c.reason = VarStringSerializer.stream_deserialize(f)
return c
def msg_deser(cls, f, protover=PROTO_VERSION):
c = cls()
c.nonce = struct.unpack(b"<Q", ser_read(f,8))[0]
return c
def msg_deser(cls, f, protover=PROTO_VERSION):
c = cls()
c.locator = CBlockLocator.stream_deserialize(f)
c.hashstop = ser_read(f, 32)
return c
def msg_deser(cls, f, protover=PROTO_VERSION):
c = cls()
c.message = VarStringSerializer.stream_deserialize(f)
c.ccode = struct.unpack(b"<c", ser_read(f, 1))[0]
c.reason = VarStringSerializer.stream_deserialize(f)
return c
def msg_deser(cls, f, protover=PROTO_VERSION):
c = cls()
c.nonce = struct.unpack(b"<Q", ser_read(f, 8))[0]
return c
def msg_deser(cls, f, protover=PROTO_VERSION):
c = cls()
c.locator = CBlockLocator.stream_deserialize(f)
c.hashstop = ser_read(f, 32)
return c
