1  #!/usr/bin/env python3
 2  # Copyright (c) 2022 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  """Test -discover command."""
 6  
 7  import socket
 8  
 9  from test_framework.test_framework import BitcoinTestFramework
10  from test_framework.util import assert_equal
11  
12  
13  def is_valid_ipv4_address(address):
14      try:
15          socket.inet_aton(address)
16      except socket.error:
17          return False
18      return True
19  
20  
21  def is_valid_ipv6_address(address):
22      try:
23          socket.inet_pton(socket.AF_INET6, address)
24      except socket.error:
25          return False
26      return True
27  
28  
29  class DiscoverTest(BitcoinTestFramework):
30      def set_test_params(self):
31          self.setup_clean_chain = True
32          self.bind_to_localhost_only = False
33          self.num_nodes = 1
34  
35      def validate_addresses(self, addresses_obj):
36          for address_obj in addresses_obj:
37              address = address_obj['address']
38              self.log.info(f"Validating {address}")
39              valid = (is_valid_ipv4_address(address)
40                       or is_valid_ipv6_address(address))
41              assert_equal(valid, True)
42  
43      def test_local_addresses(self, test_case, *, expect_empty=False):
44          self.log.info(f"Restart node with {test_case}")
45          self.restart_node(0, test_case)
46          network_info = self.nodes[0].getnetworkinfo()
47          network_enabled = [n for n in network_info['networks']
48                             if n['reachable'] and n['name'] in ['ipv4', 'ipv6']]
49          local_addrs = list(network_info["localaddresses"])
50          if expect_empty or not network_enabled:
51              assert_equal(local_addrs, [])
52          elif len(local_addrs) > 0:
53              self.validate_addresses(local_addrs)
54  
55      def run_test(self):
56          test_cases = [
57              ["-listen", "-discover"],
58              ["-discover"],
59          ]
60  
61          test_cases_empty = [
62              ["-discover=0"],
63              ["-listen", "-discover=0"],
64              [],
65          ]
66  
67          for test_case in test_cases:
68              self.test_local_addresses(test_case, expect_empty=False)
69  
70          for test_case in test_cases_empty:
71              self.test_local_addresses(test_case, expect_empty=True)
72  
73  
74  if __name__ == '__main__':
75      DiscoverTest().main()