git / moonbite-core / test/functional/p2p_node_network_limited.py · raw

#!/usr/bin/env python3# Copyright (c) 2017-2019 The Bitcoin Core developers# Distributed under the MIT software license, see the accompanying# file COPYING or http://www.opensource.org/licenses/mit-license.php."""Tests NODE_NETWORK_LIMITED.Tests that a node configured with -prune=2200 signals NODE_NETWORK_LIMITED correctlyand that it responds to getdata requests for blocks correctly:    - send a block within 288 + 2 of the tip    - disconnect peers who request blocks older than that."""from test_framework.messages import CInv, MSG_BLOCK, msg_getdata, msg_verack, NODE_MWEB, NODE_MWEB_LIGHT_CLIENT, NODE_NETWORK_LIMITED, NODE_WITNESSfrom test_framework.p2p import P2PInterfacefrom test_framework.test_framework import BitcoinTestFrameworkfrom test_framework.util import (    assert_equal,)class P2PIgnoreInv(P2PInterface):    firstAddrnServices = 0    def on_inv(self, message):        # The node will send us invs for other blocks. Ignore them.        pass    def on_addr(self, message):        self.firstAddrnServices = message.addrs[0].nServices    def wait_for_addr(self, timeout=5):        test_function = lambda: self.last_message.get("addr")        self.wait_until(test_function, timeout=timeout)    def send_getdata_for_block(self, blockhash):        getdata_request = msg_getdata()        getdata_request.inv.append(CInv(MSG_BLOCK, int(blockhash, 16)))        self.send_message(getdata_request)class NodeNetworkLimitedTest(BitcoinTestFramework):    def set_test_params(self):        self.setup_clean_chain = True        self.num_nodes = 3        self.extra_args = [['-prune=2200', '-addrmantest'], [], []]    def disconnect_all(self):        self.disconnect_nodes(0, 1)        self.disconnect_nodes(0, 2)        self.disconnect_nodes(1, 2)    def setup_network(self):        self.add_nodes(self.num_nodes, self.extra_args)        self.start_nodes()    def run_test(self):        node = self.nodes[0].add_p2p_connection(P2PIgnoreInv())        expected_services = NODE_WITNESS | NODE_MWEB | NODE_MWEB_LIGHT_CLIENT | NODE_NETWORK_LIMITED        self.log.info("Check that node has signalled expected services.")        assert_equal(node.nServices, expected_services)        self.log.info("Check that the localservices is as expected.")        assert_equal(int(self.nodes[0].getnetworkinfo()['localservices'], 16), expected_services)        self.log.info("Mine enough blocks to reach the NODE_NETWORK_LIMITED range.")        self.connect_nodes(0, 1)        blocks = self.nodes[1].generatetoaddress(292, self.nodes[1].get_deterministic_priv_key().address)        self.sync_blocks([self.nodes[0], self.nodes[1]])        self.log.info("Make sure we can max retrieve block at tip-288.")        node.send_getdata_for_block(blocks[1])  # last block in valid range        node.wait_for_block(int(blocks[1], 16), timeout=3)        self.log.info("Requesting block at height 2 (tip-289) must fail (ignored).")        node.send_getdata_for_block(blocks[0])  # first block outside of the 288+2 limit        node.wait_for_disconnect(5)        self.log.info("Check local address relay, do a fresh connection.")        self.nodes[0].disconnect_p2ps()        node1 = self.nodes[0].add_p2p_connection(P2PIgnoreInv())        node1.send_message(msg_verack())        node1.wait_for_addr()        #must relay address with NODE_NETWORK_LIMITED        assert_equal(node1.firstAddrnServices, expected_services)        self.nodes[0].disconnect_p2ps()        # connect unsynced node 2 with pruned NODE_NETWORK_LIMITED peer        # because node 2 is in IBD and node 0 is a NODE_NETWORK_LIMITED peer, sync must not be possible        self.connect_nodes(0, 2)        try:            self.sync_blocks([self.nodes[0], self.nodes[2]], timeout=5)        except:            pass        # node2 must remain at height 0        assert_equal(self.nodes[2].getblockheader(self.nodes[2].getbestblockhash())['height'], 0)        # now connect also to node 1 (non pruned)        self.connect_nodes(1, 2)        # sync must be possible        self.sync_blocks()        # disconnect all peers        self.disconnect_all()        # mine 10 blocks on node 0 (pruned node)        self.nodes[0].generatetoaddress(10, self.nodes[0].get_deterministic_priv_key().address)        # connect node1 (non pruned) with node0 (pruned) and check if the can sync        self.connect_nodes(0, 1)        # sync must be possible, node 1 is no longer in IBD and should therefore connect to node 0 (NODE_NETWORK_LIMITED)        self.sync_blocks([self.nodes[0], self.nodes[1]])if __name__ == '__main__':    NodeNetworkLimitedTest().main()