1#!/usr/bin/env python3
2# Copyright (c) 2020 The Bitcoin Core developers
3# Distributed under the MIT software license, see the accompanying
4# file COPYING or http://www.opensource.org/licenses/mit-license.php.
5"""
6Test addrv2 relay
7"""
8
9import time
10
11from test_framework.messages import (
12    CAddress,
13    msg_addrv2,
14    NODE_NETWORK,
15    NODE_WITNESS,
16)
17from test_framework.p2p import P2PInterface
18from test_framework.test_framework import BitcoinTestFramework
19from test_framework.util import assert_equal
20
21I2P_ADDR = "c4gfnttsuwqomiygupdqqqyy5y5emnk5c73hrfvatri67prd7vyq.b32.i2p"
22
23ADDRS = []
24for i in range(10):
25    addr = CAddress()
26    addr.time = int(time.time()) + i
27    addr.nServices = NODE_NETWORK | NODE_WITNESS
28    # Add one I2P address at an arbitrary position.
29    if i == 5:
30        addr.net = addr.NET_I2P
31        addr.ip = I2P_ADDR
32    else:
33        addr.ip = f"123.123.123.{i % 256}"
34    addr.port = 8333 + i
35    ADDRS.append(addr)
36
37
38class AddrReceiver(P2PInterface):
39    addrv2_received_and_checked = False
40
41    def __init__(self):
42        super().__init__(support_addrv2 = True)
43
44    def on_addrv2(self, message):
45        expected_set = set((addr.ip, addr.port) for addr in ADDRS)
46        received_set = set((addr.ip, addr.port) for addr in message.addrs)
47        if expected_set == received_set:
48            self.addrv2_received_and_checked = True
49
50    def wait_for_addrv2(self):
51        self.wait_until(lambda: "addrv2" in self.last_message)
52
53
54class AddrTest(BitcoinTestFramework):
55    def set_test_params(self):
56        self.setup_clean_chain = True
57        self.num_nodes = 1
58        self.extra_args = [["-whitelist=addr@127.0.0.1"]]
59
60    def run_test(self):
61        self.log.info('Create connection that sends addrv2 messages')
62        addr_source = self.nodes[0].add_p2p_connection(P2PInterface())
63        msg = msg_addrv2()
64
65        self.log.info('Send too-large addrv2 message')
66        msg.addrs = ADDRS * 101
67        with self.nodes[0].assert_debug_log(['addrv2 message size = 1010']):
68            addr_source.send_and_ping(msg)
69
70        self.log.info('Check that addrv2 message content is relayed and added to addrman')
71        addr_receiver = self.nodes[0].add_p2p_connection(AddrReceiver())
72        msg.addrs = ADDRS
73        with self.nodes[0].assert_debug_log([
74                # The I2P address is not added to node's own addrman because it has no
75                # I2P reachability (thus 10 - 1 = 9).
76                'Added 9 addresses from 127.0.0.1: 0 tried',
77                'received: addrv2 (159 bytes) peer=0',
78                'sending addrv2 (159 bytes) peer=1',
79        ]):
80            addr_source.send_and_ping(msg)
81            self.nodes[0].setmocktime(int(time.time()) + 30 * 60)
82            addr_receiver.wait_for_addrv2()
83
84        assert addr_receiver.addrv2_received_and_checked
85        assert_equal(len(self.nodes[0].getnodeaddresses(count=0, network="i2p")), 0)
86
87
88if __name__ == '__main__':
89    AddrTest().main()
90