def _productHook(dct):
if "__bytes__" in dct:
rvalue = base64.b64decode(dct["__bytes__"].encode())
elif "__ntp__" in dct:
pack = base64.b64decode(dct["__ntp__"].encode())
ntptime = struct.unpack("d", pack)[0]
rvalue = ntp.ntp2datetime(ntptime)
else:
rvalue = dct
return rvalue
def _arg_decode(data, typetag):
if typetag == "T":
arg = None
elif typetag == "F":
arg = None
elif typetag == "N":
arg = None
elif typetag == "I":
arg = None
elif typetag == "i":
if len(data) < 4:
raise ValueError("Wrong data size for an int")
arg, data = struct.unpack("!i", data[:4])[0], data[4:]
elif typetag == "f":
if len(data) < 4:
raise ValueError("Wrong data size for a float")
arg, data = struct.unpack("!f", data[:4])[0], data[4:]
elif typetag == "s":
eos = data.find(b"\0")
if eos == -1:
raise ValueError("Not a string")
size = _pad(eos + 1)
arg, data = data[:eos].decode(), data[size:]
elif typetag == "b":
realsize = struct.unpack("!i", data[0:4])[0]
size = _pad(realsize)
if len(data) < size:
raise ValueError("Wrong data size for a %d bytes blob" % realsize)
arg, data = data[4 : 4 + realsize], data[size:]
elif typetag == "t":
if len(data) < 8:
raise ValueError("Wrong data size for a time tag")
argdata, data = data[:8], data[8:]
if struct.unpack("!q", argdata)[0] == IMMEDIATELY:
arg = None
else:
arg = ntp.ntp2datetime(ntp.ntpDecode(argdata))
else:
raise TypeError("Unsupported type tag (%s)" % typetag)
return (arg, data)
