def send_packet(self, name, *data):
"""Sends a packet to the remote."""
if self.closed:
return
self.log_packet("# send", name)
data = b"".join(data)
# Prepend ident
key = (self.protocol_version, self.protocol_mode, self.send_direction,
name)
try:
ident = packets.packet_idents[key]
except KeyError:
raise ProtocolError("No ID known for packet: %s" % (key, ))
data = Buffer.pack_varint(ident) + data
if self.compression_enabled:
# Compress data and prepend uncompressed data length
if len(data) >= self.compression_threshold:
data = Buffer.pack_varint(len(data)) + zlib.compress(data)
else:
data = Buffer.pack_varint(0) + data
# Prepend packet length
max_bits = 32 if self.protocol_mode == "play" else 21
data = self.buff_type.pack_varint(len(data), max_bits=max_bits) + data
# Encrypt
data = self.cipher.encrypt(data)
# Send
self.transport.write(data)
def test_pack_varint():
for value, data in varint_vectors:
assert Buffer.pack_varint(value) == data
