move server implementation to tracker module

This commit is contained in:
Victor Shyba 2022-03-12 02:17:37 -03:00
parent 2e85e29ef1
commit c276053301
2 changed files with 44 additions and 45 deletions

View file

@ -6,6 +6,7 @@ import asyncio
import logging
import time
from collections import namedtuple
from functools import reduce
from typing import Optional
from lbry.utils import resolve_host, async_timed_cache, cache_concurrent
@ -220,3 +221,45 @@ class TrackerClient:
def subscribe_hash(info_hash: bytes, on_data):
TrackerClient.EVENT_CONTROLLER.add(('search', info_hash, on_data))
class UDPTrackerServerProtocol(asyncio.DatagramProtocol): # for testing. Not suitable for production
def __init__(self):
self.transport = None
self.known_conns = set()
self.peers = {}
def connection_made(self, transport: asyncio.DatagramTransport) -> None:
self.transport = transport
def add_peer(self, info_hash, ip_address: str, port: int):
self.peers.setdefault(info_hash, [])
self.peers[info_hash].append(encode_peer(ip_address, port))
def datagram_received(self, data: bytes, address: (str, int)) -> None:
if len(data) < 16:
return
action = int.from_bytes(data[8:12], "big", signed=False)
if action == 0:
req = decode(ConnectRequest, data)
connection_id = random.getrandbits(32)
self.known_conns.add(connection_id)
return self.transport.sendto(encode(ConnectResponse(0, req.transaction_id, connection_id)), address)
elif action == 1:
req = decode(AnnounceRequest, data)
if req.connection_id not in self.known_conns:
resp = encode(ErrorResponse(3, req.transaction_id, b'Connection ID missmatch.\x00'))
else:
compact_address = encode_peer(address[0], req.port)
if req.event != 3:
self.add_peer(req.info_hash, address[0], req.port)
elif compact_address in self.peers.get(req.info_hash, []):
self.peers[req.info_hash].remove(compact_address)
peers = [decode(CompactIPv4Peer, peer) for peer in self.peers[req.info_hash]]
resp = encode(AnnounceResponse(1, req.transaction_id, 1700, 0, len(peers), peers))
return self.transport.sendto(resp, address)
def encode_peer(ip_address: str, port: int):
compact_ip = reduce(lambda buff, x: buff + bytearray([int(x)]), ip_address.split('.'), bytearray())
return compact_ip + port.to_bytes(2, "big", signed=False)

View file

@ -1,52 +1,8 @@
import asyncio
import random
from functools import reduce
from lbry.testcase import AsyncioTestCase
from lbry.torrent.tracker import encode, decode, CompactIPv4Peer, ConnectRequest, \
ConnectResponse, AnnounceRequest, ErrorResponse, AnnounceResponse, TrackerClient, subscribe_hash
class UDPTrackerServerProtocol(asyncio.DatagramProtocol): # for testing. Not suitable for production
def __init__(self):
self.transport = None
self.known_conns = set()
self.peers = {}
def connection_made(self, transport: asyncio.DatagramTransport) -> None:
self.transport = transport
def add_peer(self, info_hash, ip_address: str, port: int):
self.peers.setdefault(info_hash, [])
self.peers[info_hash].append(encode_peer(ip_address, port))
def datagram_received(self, data: bytes, address: (str, int)) -> None:
if len(data) < 16:
return
action = int.from_bytes(data[8:12], "big", signed=False)
if action == 0:
req = decode(ConnectRequest, data)
connection_id = random.getrandbits(32)
self.known_conns.add(connection_id)
return self.transport.sendto(encode(ConnectResponse(0, req.transaction_id, connection_id)), address)
elif action == 1:
req = decode(AnnounceRequest, data)
if req.connection_id not in self.known_conns:
resp = encode(ErrorResponse(3, req.transaction_id, b'Connection ID missmatch.\x00'))
else:
compact_address = encode_peer(address[0], req.port)
if req.event != 3:
self.add_peer(req.info_hash, address[0], req.port)
elif compact_address in self.peers.get(req.info_hash, []):
self.peers[req.info_hash].remove(compact_address)
peers = [decode(CompactIPv4Peer, peer) for peer in self.peers[req.info_hash]]
resp = encode(AnnounceResponse(1, req.transaction_id, 1700, 0, len(peers), peers))
return self.transport.sendto(resp, address)
def encode_peer(ip_address: str, port: int):
compact_ip = reduce(lambda buff, x: buff + bytearray([int(x)]), ip_address.split('.'), bytearray())
return compact_ip + port.to_bytes(2, "big", signed=False)
from lbry.torrent.tracker import CompactIPv4Peer, TrackerClient, subscribe_hash, UDPTrackerServerProtocol, encode_peer
class UDPTrackerClientTestCase(AsyncioTestCase):