#!/usr/bin/env python3 # Copyright (c) 2017-2021 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 = [] self.disable_autoconnect = False def test_config_file_parser(self): self.log.info('Test config file parser') self.stop_node(0) # Check that startup fails if conf= is set in bitcoin.conf or in an included conf file bad_conf_file_path = os.path.join(self.options.tmpdir, 'node0', 'bitcoin_bad.conf') util.write_config(bad_conf_file_path, n=0, chain='', extra_config=f'conf=some.conf\n') conf_in_config_file_err = 'Error: Error reading configuration file: conf cannot be set in the configuration file; use includeconf= if you want to include additional config files' self.nodes[0].assert_start_raises_init_error( extra_args=[f'-conf={bad_conf_file_path}'], expected_msg=conf_in_config_file_err, ) 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(f'includeconf={inc_conf_file_path}\n') with open(inc_conf_file_path, 'w', encoding='utf-8') as conf: conf.write('conf=some.conf\n') self.nodes[0].assert_start_raises_init_error( expected_msg=conf_in_config_file_err, ) 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('reindex=1\n') with self.nodes[0].assert_debug_log(expected_msgs=['Warning: reindex=1 is set in the configuration file, which will significantly slow down startup. Consider removing or commenting out this option for better performance, unless there is currently a condition which makes rebuilding the indexes necessary']): 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=f'Error: Config setting for -wallet only applied on {self.chain} network when in [{self.chain}] section.') 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=f'includeconf={inc_conf_file_path}\n') 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=[f"-conf={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(f'includeconf={inc_conf_file2_path}\n') 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=f'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: Error parsing command line arguments: Can not set -proxy with no value. Please specify value with -proxy=value.', extra_args=['-proxy'], ) def test_log_buffer(self): self.stop_node(0) 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']) def test_args_log(self): self.stop_node(0) 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=****', f'Config file arg: {self.chain}="1"', f'Config file arg: [{self.chain}] server="1"', ], 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', ]) def test_networkactive(self): self.log.info('Test -networkactive option') self.stop_node(0) 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']) def test_seed_peers(self): self.log.info('Test seed peers') default_data_dir = self.nodes[0].datadir # Only regtest has no fixed seeds. To avoid connections to random # nodes, regtest is the only network where it is safe to enable # -fixedseeds in tests util.assert_equal(self.nodes[0].getblockchaininfo()['chain'],'regtest') self.stop_node(0) # No peers.dat exists and -dnsseed=1 # We expect the node will use DNS Seeds, but Regtest mode does not have # any valid DNS seeds. So after 60 seconds, the node should fallback to # 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", "0 addresses found from DNS seeds", "opencon thread start", # Ensure ThreadOpenConnections::start time is properly set ], timeout=10, ): self.start_node(0, extra_args=['-dnsseed=1', '-fixedseeds=1', f'-mocktime={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 (or IPv4/IPv6 connections are disabled via -onlynet), -addnode is not provided and all -seednode(s) attempted\n", ]): self.start_node(0, extra_args=['-dnsseed=0', '-fixedseeds=1']) assert time.time() - start < 60 self.stop_node(0) self.nodes[0].assert_start_raises_init_error(['-dnsseed=1', '-onlynet=i2p', '-i2psam=127.0.0.1:7656'], "Error: Incompatible options: -dnsseed=1 was explicitly specified, but -onlynet forbids connections to IPv4/IPv6") # 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", "opencon thread start", # Ensure ThreadOpenConnections::start time is properly set ], timeout=10, ): self.start_node(0, extra_args=['-dnsseed=0', '-fixedseeds=1', '-addnode=fakenodeaddr', f'-mocktime={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) def run_test(self): 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([f'-datadir={new_data_dir}'], f'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 with open(conf_file, encoding='utf8') as f: conf_file_contents = f.read() with open(conf_file, 'w', encoding='utf8') as f: f.write(f"datadir={new_data_dir}\n") f.write(conf_file_contents) self.nodes[0].assert_start_raises_init_error([f'-conf={conf_file}'], f'Error: Error reading configuration file: specified data directory "{new_data_dir}" does not exist.') # Check that an explicitly specified config file that cannot be opened fails none_existent_conf_file = os.path.join(default_data_dir, "none_existent_bitcoin.conf") self.nodes[0].assert_start_raises_init_error(['-conf=' + none_existent_conf_file], 'Error: Error reading configuration file: specified config file "' + none_existent_conf_file + '" could not be opened.') # Create the directory and ensure the config file now works os.mkdir(new_data_dir) self.start_node(0, [f'-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, [f'-datadir={new_data_dir_2}', f'-conf={conf_file}']) assert os.path.exists(os.path.join(new_data_dir_2, self.chain, 'blocks')) if __name__ == '__main__': ConfArgsTest().main()