def encode_tlv(t, v):
return Tlv(t, v).encode()
def pop_tlv(byte_string):
return Tlv.pop(byte_string)
def iter_tlvs(byte_string):
assert Namespace.tlvs_are_valid(byte_string), "bad byte_string?"
while len(byte_string) > 0:
tlv, byte_string, _ = Tlv.pop(byte_string)
yield tlv
def _encode_art_no(art_no):
encoded = Namespace.encode_tu16(art_no)
return Tlv(ART_TLV_TYPE, encoded).encode()
{'stream': ""}, # empty byte stream is counted as invalid by this lib
{'stream': "fd"},
{'stream': "fd01"},
{'stream': "fd000100"},
{'stream': "fd0101"},
{'stream': "0ffd26"},
{'stream': "0ffd2602"},
{'stream': "0ffd000100"},
{'stream': "0ffd0201000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"},
]
if __name__ == "__main__":
print("testing valid cases")
for test in TLV_VALID_TESTS:
peek_tlv, peek_err = Tlv.peek(h2b(test['stream']))
pop_tlv, remainder, pop_err = Tlv.pop(h2b(test['stream']))
assert peek_err is None
assert peek_tlv.t == test['t']
assert peek_tlv.l == test['l']
assert peek_tlv.v == h2b(test['v'])
assert pop_err is None
assert pop_tlv.t == test['t']
assert pop_tlv.l == test['l']
assert pop_tlv.v == h2b(test['v'])
assert remainder == h2b(test['r'])
print("done testing valid cases")
def _encode_pixels(pixels):
encoded = b''.join([p.to_bin() for p in pixels])
return Tlv(PIXEL_TLV_TYPE, encoded).encode()
def encode_payment_data(payment_secret, total_msat):
body = (Namespace.encode_bytes(payment_secret) +
Namespace.encode_tu64(total_msat))
return Tlv(8, body).encode()
def encode_short_channel_id(short_channel_id):
t = Tlv(6, Namespace.encode_short_channel_id(short_channel_id))
return t.encode()
def encode_outgoing_cltv_value(outgoing_cltv_value):
return Tlv(4, Namespace.encode_tu32(outgoing_cltv_value)).encode()
def encode_amt_to_forward(amt_to_forward):
return Tlv(2, Namespace.encode_tu64(amt_to_forward)).encode()