def from_bytes(cls, data):
if not check_bytes_length(data, 13):
return None
offset = 1
offset, piece_index = Network.read_integer(data, offset)
offset, data_offset = Network.read_integer(data, offset)
offset, data_length = Network.read_integer(data, offset)
return cls(piece_index, data_offset, data_length)
def from_bytes(cls, data):
if not check_minimal_bytes_length(data, 10):
return None
offset = 1
offset, piece_index = Network.read_integer(data, offset)
offset, data_offset = Network.read_integer(data, offset)
offset, data_bytes = Network.read_bytes(data,
len(data) - offset, offset)
return cls(piece_index, data_offset, data_bytes)
def from_bytes(cls, data):
if not check_bytes_length(data, 5):
return None
offset, piece_index = Network.read_integer(data, 1)
return cls(piece_index)