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#!/usr/bin/env python3
# Copyright (c) 2014-2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test node disconnect and ban behavior"""
from test_framework.mininode import wait_until
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (assert_equal,
assert_raises_jsonrpc,
connect_nodes_bi,
start_node,
stop_node,
)
class DisconnectBanTest(BitcoinTestFramework):
def __init__(self):
super().__init__()
self.num_nodes = 2
self.setup_clean_chain = False
def setup_network(self):
self.nodes = self.setup_nodes()
connect_nodes_bi(self.nodes, 0, 1)
def run_test(self):
self.log.info("Test setban and listbanned RPCs")
self.log.info("setban: successfully ban single IP address")
assert_equal(len(self.nodes[1].getpeerinfo()), 2) # node1 should have 2 connections to node0 at this point
self.nodes[1].setban("127.0.0.1", "add")
assert wait_until(lambda: len(self.nodes[1].getpeerinfo()) == 0, timeout=10)
assert_equal(len(self.nodes[1].getpeerinfo()), 0) # all nodes must be disconnected at this point
assert_equal(len(self.nodes[1].listbanned()), 1)
self.log.info("clearbanned: successfully clear ban list")
self.nodes[1].clearbanned()
assert_equal(len(self.nodes[1].listbanned()), 0)
self.nodes[1].setban("127.0.0.0/24", "add")
self.log.info("setban: fail to ban an already banned subnet")
assert_equal(len(self.nodes[1].listbanned()), 1)
assert_raises_jsonrpc(-23, "IP/Subnet already banned", self.nodes[1].setban, "127.0.0.1", "add")
self.log.info("setban: fail to ban an invalid subnet")
assert_raises_jsonrpc(-30, "Error: Invalid IP/Subnet", self.nodes[1].setban, "127.0.0.1/42", "add")
assert_equal(len(self.nodes[1].listbanned()), 1) # still only one banned ip because 127.0.0.1 is within the range of 127.0.0.0/24
self.log.info("setban remove: fail to unban a non-banned subnet")
assert_raises_jsonrpc(-30, "Error: Unban failed", self.nodes[1].setban, "127.0.0.1", "remove")
assert_equal(len(self.nodes[1].listbanned()), 1)
self.log.info("setban remove: successfully unban subnet")
self.nodes[1].setban("127.0.0.0/24", "remove")
assert_equal(len(self.nodes[1].listbanned()), 0)
self.nodes[1].clearbanned()
assert_equal(len(self.nodes[1].listbanned()), 0)
self.log.info("setban: test persistence across node restart")
self.nodes[1].setban("127.0.0.0/32", "add")
self.nodes[1].setban("127.0.0.0/24", "add")
self.nodes[1].setban("192.168.0.1", "add", 1) # ban for 1 seconds
self.nodes[1].setban("2001:4d48:ac57:400:cacf:e9ff:fe1d:9c63/19", "add", 1000) # ban for 1000 seconds
listBeforeShutdown = self.nodes[1].listbanned()
assert_equal("192.168.0.1/32", listBeforeShutdown[2]['address'])
assert wait_until(lambda: len(self.nodes[1].listbanned()) == 3, timeout=10)
stop_node(self.nodes[1], 1)
self.nodes[1] = start_node(1, self.options.tmpdir)
listAfterShutdown = self.nodes[1].listbanned()
assert_equal("127.0.0.0/24", listAfterShutdown[0]['address'])
assert_equal("127.0.0.0/32", listAfterShutdown[1]['address'])
assert_equal("/19" in listAfterShutdown[2]['address'], True)
# Clear ban lists
self.nodes[1].clearbanned()
connect_nodes_bi(self.nodes, 0, 1)
self.log.info("Test disconnectnode RPCs")
self.log.info("disconnectnode: fail to disconnect when calling with address and nodeid")
address1 = self.nodes[0].getpeerinfo()[0]['addr']
node1 = self.nodes[0].getpeerinfo()[0]['addr']
assert_raises_jsonrpc(-32602, "Only one of address and nodeid should be provided.", self.nodes[0].disconnectnode, address=address1, nodeid=node1)
self.log.info("disconnectnode: fail to disconnect when calling with junk address")
assert_raises_jsonrpc(-29, "Node not found in connected nodes", self.nodes[0].disconnectnode, address="221B Baker Street")
self.log.info("disconnectnode: successfully disconnect node by address")
address1 = self.nodes[0].getpeerinfo()[0]['addr']
self.nodes[0].disconnectnode(address=address1)
assert wait_until(lambda: len(self.nodes[0].getpeerinfo()) == 1, timeout=10)
assert not [node for node in self.nodes[0].getpeerinfo() if node['addr'] == address1]
self.log.info("disconnectnode: successfully reconnect node")
connect_nodes_bi(self.nodes, 0, 1) # reconnect the node
assert_equal(len(self.nodes[0].getpeerinfo()), 2)
assert [node for node in self.nodes[0].getpeerinfo() if node['addr'] == address1]
self.log.info("disconnectnode: successfully disconnect node by node id")
id1 = self.nodes[0].getpeerinfo()[0]['id']
self.nodes[0].disconnectnode(nodeid=id1)
assert wait_until(lambda: len(self.nodes[0].getpeerinfo()) == 1, timeout=10)
assert not [node for node in self.nodes[0].getpeerinfo() if node['id'] == id1]
if __name__ == '__main__':
DisconnectBanTest().main()
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