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path: root/test/functional/feature_config_args.py
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#!/usr/bin/env python3
# Copyright (c) 2017-2020 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 various command line arguments and configuration file parameters."""

import os
import time

from test_framework.test_framework import BitcoinTestFramework
from test_framework import util


class ConfArgsTest(BitcoinTestFramework):
    def set_test_params(self):
        self.setup_clean_chain = True
        self.num_nodes = 1
        self.supports_cli = False
        self.wallet_names = []

    def test_config_file_parser(self):
        # Assume node is stopped

        inc_conf_file_path = os.path.join(self.nodes[0].datadir, 'include.conf')
        with open(os.path.join(self.nodes[0].datadir, 'bitcoin.conf'), 'a', encoding='utf-8') as conf:
            conf.write('includeconf={}\n'.format(inc_conf_file_path))

        self.nodes[0].assert_start_raises_init_error(
            expected_msg='Error: Error parsing command line arguments: Invalid parameter -dash_cli=1',
            extra_args=['-dash_cli=1'],
        )
        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
            conf.write('dash_conf=1\n')
        with self.nodes[0].assert_debug_log(expected_msgs=['Ignoring unknown configuration value dash_conf']):
            self.start_node(0)
        self.stop_node(0)

        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
            conf.write('-dash=1\n')
        self.nodes[0].assert_start_raises_init_error(expected_msg='Error: Error reading configuration file: parse error on line 1: -dash=1, options in configuration file must be specified without leading -')

        if self.is_wallet_compiled():
            with open(inc_conf_file_path, 'w', encoding='utf8') as conf:
                conf.write("wallet=foo\n")
            self.nodes[0].assert_start_raises_init_error(expected_msg='Error: Config setting for -wallet only applied on %s network when in [%s] section.' % (self.chain, self.chain))

        main_conf_file_path = os.path.join(self.options.tmpdir, 'node0', 'bitcoin_main.conf')
        util.write_config(main_conf_file_path, n=0, chain='', extra_config='includeconf={}\n'.format(inc_conf_file_path))
        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
            conf.write('acceptnonstdtxn=1\n')
        self.nodes[0].assert_start_raises_init_error(extra_args=["-conf={}".format(main_conf_file_path)], expected_msg='Error: acceptnonstdtxn is not currently supported for main chain')

        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
            conf.write('nono\n')
        self.nodes[0].assert_start_raises_init_error(expected_msg='Error: Error reading configuration file: parse error on line 1: nono, if you intended to specify a negated option, use nono=1 instead')

        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
            conf.write('server=1\nrpcuser=someuser\nrpcpassword=some#pass')
        self.nodes[0].assert_start_raises_init_error(expected_msg='Error: Error reading configuration file: parse error on line 3, using # in rpcpassword can be ambiguous and should be avoided')

        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
            conf.write('server=1\nrpcuser=someuser\nmain.rpcpassword=some#pass')
        self.nodes[0].assert_start_raises_init_error(expected_msg='Error: Error reading configuration file: parse error on line 3, using # in rpcpassword can be ambiguous and should be avoided')

        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
            conf.write('server=1\nrpcuser=someuser\n[main]\nrpcpassword=some#pass')
        self.nodes[0].assert_start_raises_init_error(expected_msg='Error: Error reading configuration file: parse error on line 4, using # in rpcpassword can be ambiguous and should be avoided')

        inc_conf_file2_path = os.path.join(self.nodes[0].datadir, 'include2.conf')
        with open(os.path.join(self.nodes[0].datadir, 'bitcoin.conf'), 'a', encoding='utf-8') as conf:
            conf.write('includeconf={}\n'.format(inc_conf_file2_path))

        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
            conf.write('testnot.datadir=1\n')
        with open(inc_conf_file2_path, 'w', encoding='utf-8') as conf:
            conf.write('[testnet]\n')
        self.restart_node(0)
        self.nodes[0].stop_node(expected_stderr='Warning: ' + inc_conf_file_path + ':1 Section [testnot] is not recognized.' + os.linesep + inc_conf_file2_path + ':1 Section [testnet] is not recognized.')

        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
            conf.write('')  # clear
        with open(inc_conf_file2_path, 'w', encoding='utf-8') as conf:
            conf.write('')  # clear

    def test_invalid_command_line_options(self):
        self.nodes[0].assert_start_raises_init_error(
            expected_msg='Error: No proxy server specified. Use -proxy=<ip> or -proxy=<ip:port>.',
            extra_args=['-proxy'],
        )

    def test_log_buffer(self):
        with self.nodes[0].assert_debug_log(expected_msgs=['Warning: parsed potentially confusing double-negative -connect=0\n']):
            self.start_node(0, extra_args=['-noconnect=0'])
        self.stop_node(0)

    def test_args_log(self):
        self.log.info('Test config args logging')
        with self.nodes[0].assert_debug_log(
                expected_msgs=[
                    'Command-line arg: addnode="some.node"',
                    'Command-line arg: rpcauth=****',
                    'Command-line arg: rpcbind=****',
                    'Command-line arg: rpcpassword=****',
                    'Command-line arg: rpcuser=****',
                    'Command-line arg: torpassword=****',
                    'Config file arg: %s="1"' % self.chain,
                    'Config file arg: [%s] server="1"' % self.chain,
                ],
                unexpected_msgs=[
                    'alice:f7efda5c189b999524f151318c0c86$d5b51b3beffbc0',
                    '127.1.1.1',
                    'secret-rpcuser',
                    'secret-torpassword',
                ]):
            self.start_node(0, extra_args=[
                '-addnode=some.node',
                '-rpcauth=alice:f7efda5c189b999524f151318c0c86$d5b51b3beffbc0',
                '-rpcbind=127.1.1.1',
                '-rpcpassword=',
                '-rpcuser=secret-rpcuser',
                '-torpassword=secret-torpassword',
            ])
        self.stop_node(0)

    def test_networkactive(self):
        self.log.info('Test -networkactive option')
        with self.nodes[0].assert_debug_log(expected_msgs=['SetNetworkActive: true\n']):
            self.start_node(0)
        self.stop_node(0)

        with self.nodes[0].assert_debug_log(expected_msgs=['SetNetworkActive: true\n']):
            self.start_node(0, extra_args=['-networkactive'])
        self.stop_node(0)

        with self.nodes[0].assert_debug_log(expected_msgs=['SetNetworkActive: true\n']):
            self.start_node(0, extra_args=['-networkactive=1'])
        self.stop_node(0)

        with self.nodes[0].assert_debug_log(expected_msgs=['SetNetworkActive: false\n']):
            self.start_node(0, extra_args=['-networkactive=0'])
        self.stop_node(0)

        with self.nodes[0].assert_debug_log(expected_msgs=['SetNetworkActive: false\n']):
            self.start_node(0, extra_args=['-nonetworkactive'])
        self.stop_node(0)

        with self.nodes[0].assert_debug_log(expected_msgs=['SetNetworkActive: false\n']):
            self.start_node(0, extra_args=['-nonetworkactive=1'])
        self.stop_node(0)

    def test_seed_peers(self):
        self.log.info('Test seed peers')
        default_data_dir = self.nodes[0].datadir

        # No peers.dat exists and -dnsseed=1
        # We expect the node will use DNS Seeds, but Regtest mode has 0 DNS seeds
        # So after 60 seconds, the node should fallback to fixed seeds (this is a slow test)
        assert not os.path.exists(os.path.join(default_data_dir, "peers.dat"))
        start = int(time.time())
        with self.nodes[0].assert_debug_log(expected_msgs=[
                "Loaded 0 addresses from peers.dat",
                "0 addresses found from DNS seeds"]):
            self.start_node(0, extra_args=['-dnsseed=1 -mocktime={}'.format(start)])
        with self.nodes[0].assert_debug_log(expected_msgs=[
                "Adding fixed seeds as 60 seconds have passed and addrman is empty"]):
            self.nodes[0].setmocktime(start + 65)
        self.stop_node(0)

        # No peers.dat exists and -dnsseed=0
        # We expect the node will fallback immediately to fixed seeds
        assert not os.path.exists(os.path.join(default_data_dir, "peers.dat"))
        start = time.time()
        with self.nodes[0].assert_debug_log(expected_msgs=[
                "Loaded 0 addresses from peers.dat",
                "DNS seeding disabled",
                "Adding fixed seeds as -dnsseed=0, -addnode is not provided and all -seednode(s) attempted\n"]):
            self.start_node(0, extra_args=['-dnsseed=0'])
        assert time.time() - start < 60
        self.stop_node(0)

        # No peers.dat exists and dns seeds are disabled.
        # We expect the node will not add fixed seeds when explicitly disabled.
        assert not os.path.exists(os.path.join(default_data_dir, "peers.dat"))
        start = time.time()
        with self.nodes[0].assert_debug_log(expected_msgs=[
                "Loaded 0 addresses from peers.dat",
                "DNS seeding disabled",
                "Fixed seeds are disabled"]):
            self.start_node(0, extra_args=['-dnsseed=0', '-fixedseeds=0'])
        assert time.time() - start < 60
        self.stop_node(0)

        # No peers.dat exists and -dnsseed=0, but a -addnode is provided
        # We expect the node will allow 60 seconds prior to using fixed seeds
        assert not os.path.exists(os.path.join(default_data_dir, "peers.dat"))
        start = int(time.time())
        with self.nodes[0].assert_debug_log(expected_msgs=[
                "Loaded 0 addresses from peers.dat",
                "DNS seeding disabled"]):
            self.start_node(0, extra_args=['-dnsseed=0', '-addnode=fakenodeaddr -mocktime={}'.format(start)])
        with self.nodes[0].assert_debug_log(expected_msgs=[
                "Adding fixed seeds as 60 seconds have passed and addrman is empty"]):
            self.nodes[0].setmocktime(start + 65)
        self.stop_node(0)


    def run_test(self):
        self.stop_node(0)

        self.test_log_buffer()
        self.test_args_log()
        self.test_seed_peers()
        self.test_networkactive()

        self.test_config_file_parser()
        self.test_invalid_command_line_options()

        # Remove the -datadir argument so it doesn't override the config file
        self.nodes[0].args = [arg for arg in self.nodes[0].args if not arg.startswith("-datadir")]

        default_data_dir = self.nodes[0].datadir
        new_data_dir = os.path.join(default_data_dir, 'newdatadir')
        new_data_dir_2 = os.path.join(default_data_dir, 'newdatadir2')

        # Check that using -datadir argument on non-existent directory fails
        self.nodes[0].datadir = new_data_dir
        self.nodes[0].assert_start_raises_init_error(['-datadir=' + new_data_dir], 'Error: Specified data directory "' + new_data_dir + '" does not exist.')

        # Check that using non-existent datadir in conf file fails
        conf_file = os.path.join(default_data_dir, "bitcoin.conf")

        # datadir needs to be set before [chain] section
        conf_file_contents = open(conf_file, encoding='utf8').read()
        with open(conf_file, 'w', encoding='utf8') as f:
            f.write("datadir=" + new_data_dir + "\n")
            f.write(conf_file_contents)

        self.nodes[0].assert_start_raises_init_error(['-conf=' + conf_file], 'Error: Error reading configuration file: specified data directory "' + new_data_dir + '" does not exist.')

        # Create the directory and ensure the config file now works
        os.mkdir(new_data_dir)
        self.start_node(0, ['-conf='+conf_file])
        self.stop_node(0)
        assert os.path.exists(os.path.join(new_data_dir, self.chain, 'blocks'))

        # Ensure command line argument overrides datadir in conf
        os.mkdir(new_data_dir_2)
        self.nodes[0].datadir = new_data_dir_2
        self.start_node(0, ['-datadir='+new_data_dir_2, '-conf='+conf_file])
        assert os.path.exists(os.path.join(new_data_dir_2, self.chain, 'blocks'))


if __name__ == '__main__':
    ConfArgsTest().main()