262 lines
8.9 KiB
Python
262 lines
8.9 KiB
Python
# -*- coding: utf-8 -*-
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"""Functions for starting the program"""
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import argparse
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import base64
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import logging
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import multiprocessing
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import os
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import signal
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import socket
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from . import i2p, shared
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from .advertiser import Advertiser
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from .manager import Manager
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from .listener import Listener
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def handler(s, f): # pylint: disable=unused-argument
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"""Signal handler"""
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logging.info('Gracefully shutting down MiNode')
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shared.shutting_down = True
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def parse_arguments(): # pylint: disable=too-many-branches,too-many-statements
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"""Parsing arguments"""
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parser = argparse.ArgumentParser()
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parser.add_argument('-p', '--port', help='Port to listen on', type=int)
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parser.add_argument('--host', help='Listening host')
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parser.add_argument(
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'--debug', action='store_true', help='Enable debug logging')
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parser.add_argument('--data-dir', help='Path to data directory')
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parser.add_argument(
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'--no-incoming', action='store_true',
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help='Do not listen for incoming connections')
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parser.add_argument(
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'--no-outgoing', action='store_true',
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help='Do not send outgoing connections')
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parser.add_argument(
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'--no-ip', action='store_true', help='Do not use IP network')
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parser.add_argument(
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'--trusted-peer', help='Specify a trusted peer we should connect to')
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parser.add_argument(
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'--connection-limit', type=int, help='Maximum number of connections')
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parser.add_argument(
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'--i2p', action='store_true', help='Enable I2P support (uses SAMv3)')
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parser.add_argument(
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'--i2p-tunnel-length', type=int, help='Length of I2P tunnels')
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parser.add_argument(
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'--i2p-sam-host', help='Host of I2P SAMv3 bridge')
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parser.add_argument(
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'--i2p-sam-port', type=int, help='Port of I2P SAMv3 bridge')
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parser.add_argument(
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'--i2p-transient', action='store_true',
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help='Generate new I2P destination on start')
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args = parser.parse_args()
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if args.port:
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shared.listening_port = args.port
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if args.host:
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shared.listening_host = args.host
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if args.debug:
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shared.log_level = logging.DEBUG
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if args.data_dir:
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dir_path = args.data_dir
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if not dir_path.endswith('/'):
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dir_path += '/'
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shared.data_directory = dir_path
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if args.no_incoming:
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shared.listen_for_connections = False
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if args.no_outgoing:
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shared.send_outgoing_connections = False
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if args.no_ip:
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shared.ip_enabled = False
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if args.trusted_peer:
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if len(args.trusted_peer) > 50:
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# I2P
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shared.trusted_peer = (args.trusted_peer.encode(), 'i2p')
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else:
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colon_count = args.trusted_peer.count(':')
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if colon_count == 0:
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shared.trusted_peer = (args.trusted_peer, 8444)
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if colon_count == 1:
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addr = args.trusted_peer.split(':')
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shared.trusted_peer = (addr[0], int(addr[1]))
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if colon_count >= 2:
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# IPv6 <3
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addr = args.trusted_peer.split(']:')
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addr[0] = addr[0][1:]
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shared.trusted_peer = (addr[0], int(addr[1]))
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if args.connection_limit:
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shared.connection_limit = args.connection_limit
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if args.i2p:
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shared.i2p_enabled = True
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if args.i2p_tunnel_length:
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shared.i2p_tunnel_length = args.i2p_tunnel_length
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if args.i2p_sam_host:
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shared.i2p_sam_host = args.i2p_sam_host
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if args.i2p_sam_port:
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shared.i2p_sam_port = args.i2p_sam_port
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if args.i2p_transient:
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shared.i2p_transient = True
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def bootstrap_from_dns():
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"""Addes addresses of bootstrap servers to known nodes"""
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try:
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for item in socket.getaddrinfo('bootstrap8080.bitmessage.org', 80):
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shared.unchecked_node_pool.add((item[4][0], 8080))
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logging.debug(
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'Adding %s to unchecked_node_pool'
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' based on DNS bootstrap method', item[4][0])
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for item in socket.getaddrinfo('bootstrap8444.bitmessage.org', 80):
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shared.unchecked_node_pool.add((item[4][0], 8444))
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logging.debug(
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'Adding %s to unchecked_node_pool'
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' based on DNS bootstrap method', item[4][0])
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except Exception:
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logging.info('Error during DNS bootstrap', exc_info=True)
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def start_ip_listener():
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"""Starts `.listener.Listener`"""
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listener_ipv4 = None
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listener_ipv6 = None
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if socket.has_ipv6:
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try:
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listener_ipv6 = Listener(
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shared.listening_host,
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shared.listening_port, family=socket.AF_INET6)
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listener_ipv6.start()
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except socket.gaierror as e:
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if e.errno == -9:
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logging.info('IPv6 is not supported.')
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except Exception:
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logging.info(
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'Error while starting IPv6 listener on port %s',
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shared.listening_port, exc_info=True)
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try:
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listener_ipv4 = Listener(shared.listening_host, shared.listening_port)
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listener_ipv4.start()
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except OSError as e:
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if listener_ipv6:
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logging.info(
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'Error while starting IPv4 listener on port %s.'
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' However the IPv6 one seems to be working'
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' and will probably accept IPv4 connections.', # 48 on macos
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shared.listening_port, exc_info=e.errno not in (48, 98))
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else:
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logging.warning(
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'Error while starting IPv4 listener on port %s.'
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'You will not receive incoming connections.'
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' Please check your port configuration',
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shared.listening_port, exc_info=True)
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def start_i2p_listener():
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"""Starts I2P threads"""
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# Grab I2P destinations from old object file
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for obj in shared.objects.values():
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if obj.object_type == shared.i2p_dest_obj_type:
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shared.i2p_unchecked_node_pool.add((
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base64.b64encode(obj.object_payload, altchars=b'-~'), 'i2p'))
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dest_priv = b''
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if not shared.i2p_transient:
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try:
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with open(
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os.path.join(shared.data_directory, 'i2p_dest_priv.key'), 'br'
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) as src:
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dest_priv = src.read()
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logging.debug('Loaded I2P destination private key.')
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except FileNotFoundError:
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pass
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except Exception:
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logging.info(
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'Error while loading I2P destination private key.',
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exc_info=True)
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logging.info(
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'Starting I2P Controller and creating tunnels. This may take a while.')
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i2p_controller = i2p.I2PController(
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shared, shared.i2p_sam_host, shared.i2p_sam_port, dest_priv)
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i2p_controller.start()
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shared.i2p_dest_pub = i2p_controller.dest_pub
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shared.i2p_session_nick = i2p_controller.nick
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logging.info('Local I2P destination: %s', shared.i2p_dest_pub.decode())
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logging.info('I2P session nick: %s', shared.i2p_session_nick.decode())
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logging.info('Starting I2P Listener')
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i2p_listener = i2p.I2PListener(shared, i2p_controller.nick)
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i2p_listener.start()
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if not shared.i2p_transient:
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try:
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with open(
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os.path.join(shared.data_directory, 'i2p_dest_priv.key'), 'bw'
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) as src:
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src.write(i2p_controller.dest_priv)
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logging.debug('Saved I2P destination private key.')
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except Exception:
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logging.warning(
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'Error while saving I2P destination private key.',
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exc_info=True)
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try:
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with open(
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os.path.join(shared.data_directory, 'i2p_dest.pub'), 'bw'
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) as src:
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src.write(shared.i2p_dest_pub)
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logging.debug('Saved I2P destination public key.')
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except Exception:
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logging.warning(
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'Error while saving I2P destination public key.', exc_info=True)
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def main():
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"""Script entry point"""
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signal.signal(signal.SIGINT, handler)
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signal.signal(signal.SIGTERM, handler)
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parse_arguments()
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logging.basicConfig(
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level=shared.log_level,
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format='[%(asctime)s] [%(levelname)s] %(message)s')
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logging.info('Starting MiNode')
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logging.info('Data directory: %s', shared.data_directory)
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if not os.path.exists(shared.data_directory):
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try:
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os.makedirs(shared.data_directory)
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except Exception:
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logging.warning(
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'Error while creating data directory in: %s',
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shared.data_directory, exc_info=True)
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if shared.ip_enabled and not shared.trusted_peer:
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bootstrap_from_dns()
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if shared.i2p_enabled:
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# We are starting it before cleaning expired objects
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# so we can collect I2P destination objects
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start_i2p_listener()
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manager = Manager()
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manager.start()
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advertiser = Advertiser()
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advertiser.start()
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if shared.listen_for_connections:
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start_ip_listener()
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if __name__ == '__main__':
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multiprocessing.set_start_method('spawn')
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main()
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