Python obfs.obfs方法代码示例

# 需要导入模块: from shadowsocks import obfs [as 别名]
# 或者: from shadowsocks.obfs import obfs [as 别名]
def modify_multi_user_table(self, new_table):
        self.multi_user_table = new_table.copy()
        self.multi_user_host_table = {}

        self._protocol.obfs.server_info.users = self.multi_user_table

        for id in self.multi_user_table:
            self.multi_user_host_table[common.get_mu_host(
                id, self.multi_user_table[id]['md5'])] = id
            if self.multi_user_table[id]['forbidden_ip'] is not None:
                self.multi_user_table[id]['_forbidden_iplist'] = IPNetwork(
                    str(self.multi_user_table[id]['forbidden_ip']))
            else:
                self.multi_user_table[id][
                    '_forbidden_iplist'] = IPNetwork(str(""))
            if self.multi_user_table[id]['disconnect_ip'] is not None:
                self.multi_user_table[id]['_disconnect_ipset'] = IPNetwork(
                    str(self.multi_user_table[id]['disconnect_ip']))
            else:
                self.multi_user_table[id]['_disconnect_ipset'] = None
            if self.multi_user_table[id]['forbidden_port'] is not None:
                self.multi_user_table[id]['_forbidden_portset'] = PortRange(
                    str(self.multi_user_table[id]['forbidden_port']))
            else:
                self.multi_user_table[id][
                    '_forbidden_portset'] = PortRange(str("")) 

# 需要导入模块: from shadowsocks import obfs [as 别名]
# 或者: from shadowsocks.obfs import obfs [as 别名]
def __init__(self, server, fd_to_handlers, loop, local_sock, config,
                 dns_resolver, is_local):
        self._server = server
        self._fd_to_handlers = fd_to_handlers
        self._loop = loop
        self._local_sock = local_sock
        self._remote_sock = None
        self._remote_sock_v6 = None
        self._remote_udp = False
        self._config = config
        self._dns_resolver = dns_resolver

        # TCP Relay works as either sslocal or ssserver
        # if is_local, this is sslocal
        self._is_local = is_local
        self._stage = STAGE_INIT
        self._encryptor = encrypt.Encryptor(config['password'],
                                            config['method'])
        self._encrypt_correct = True
        self._obfs = obfs.obfs(config['obfs'])
        server_info = obfs.server_info(server.obfs_data)
        server_info.host = config['server']
        server_info.port = server._listen_port
        server_info.tcp_mss = 1440
        server_info.param = config['obfs_param']
        self._obfs.set_server_info(server_info)

        self._protocol = obfs.obfs(config['protocol'])
        server_info = obfs.server_info(server.protocol_data)
        server_info.host = config['server']
        server_info.port = server._listen_port
        server_info.tcp_mss = 1440
        server_info.param = ''
        self._protocol.set_server_info(server_info)

        self._fastopen_connected = False
        self._data_to_write_to_local = []
        self._data_to_write_to_remote = []
        self._udp_data_send_buffer = b''
        self._upstream_status = WAIT_STATUS_READING
        self._downstream_status = WAIT_STATUS_INIT
        self._client_address = local_sock.getpeername()[:2]
        self._remote_address = None
        if 'forbidden_ip' in config:
            self._forbidden_iplist = config['forbidden_ip']
        else:
            self._forbidden_iplist = None
        if is_local:
            self._chosen_server = self._get_a_server()
        fd_to_handlers[local_sock.fileno()] = self
        local_sock.setblocking(False)
        local_sock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
        loop.add(local_sock, eventloop.POLL_IN | eventloop.POLL_ERR,
                 self._server)
        self.last_activity = 0
        self._update_activity()
        self._server.add_connection(1) 

# 需要导入模块: from shadowsocks import obfs [as 别名]
# 或者: from shadowsocks.obfs import obfs [as 别名]
def _handle_server(self):
        server = self._server_socket
        data, r_addr = server.recvfrom(BUF_SIZE)
        ogn_data = data
        if not data:
            logging.debug('UDP handle_server: data is empty')
        if self._stat_callback:
            self._stat_callback(self._listen_port, len(data))
        uid = None
        if self._is_local:
            frag = common.ord(data[2])
            if frag != 0:
                logging.warn('drop a message since frag is not 0')
                return
            else:
                data = data[3:]
        else:
            ref_iv = [0]
            data = encrypt.encrypt_all_iv(self._protocol.obfs.server_info.key, self._method, 0, data, ref_iv)
            # decrypt data
            if not data:
                logging.debug('UDP handle_server: data is empty after decrypt')
                return
            self._protocol.obfs.server_info.recv_iv = ref_iv[0]
            data, uid = self._protocol.server_udp_post_decrypt(data)

        #logging.info("UDP data %s" % (binascii.hexlify(data),))
        if not self._is_local:
            data = pre_parse_header(data)
            if data is None:
                return

        try:
            header_result = parse_header(data)
        except:
            self._handel_protocol_error(r_addr, ogn_data)
            return

        if header_result is None:
            self._handel_protocol_error(r_addr, ogn_data)
            return
        connecttype, addrtype, dest_addr, dest_port, header_length = header_result

        if self._is_local:
            addrtype = 3
            server_addr, server_port = self._get_a_server()
        else:
            server_addr, server_port = dest_addr, dest_port

        if (addrtype & 7) == 3:
            af = common.is_ip(server_addr)
            if af == False:
                handler = common.UDPAsyncDNSHandler((data, r_addr, uid, header_length))
                handler.resolve(self._dns_resolver, (server_addr, server_port), self._handle_server_dns_resolved)
            else:
                self._handle_server_dns_resolved("", (server_addr, server_port), server_addr, (data, r_addr, uid, header_length))
        else:
            self._handle_server_dns_resolved("", (server_addr, server_port), server_addr, (data, r_addr, uid, header_length)) 

# 需要导入模块: from shadowsocks import obfs [as 别名]
# 或者: from shadowsocks.obfs import obfs [as 别名]
def __init__(self, config, dns_resolver, is_local, stat_callback=None, stat_counter=None):
        self._config = config
        self._is_local = is_local
        self._dns_resolver = dns_resolver
        self._closed = False
        self._eventloop = None
        self._fd_to_handlers = {}
        self.server_transfer_ul = 0
        self.server_transfer_dl = 0
        self.server_users = {}
        self.server_users_cfg = {}
        self.server_user_transfer_ul = {}
        self.server_user_transfer_dl = {}
        self.mu = False
        self._speed_tester_u = {}
        self._speed_tester_d = {}
        self.server_connections = 0
        self.protocol_data = obfs.obfs(config['protocol']).init_data()
        self.obfs_data = obfs.obfs(config['obfs']).init_data()

        if config.get('connect_verbose_info', 0) > 0:
            common.connect_log = logging.info

        self._timeout = config['timeout']
        self._timeout_cache = lru_cache.LRUCache(timeout=self._timeout,
                                         close_callback=self._close_tcp_client)

        if is_local:
            listen_addr = config['local_address']
            listen_port = config['local_port']
        else:
            listen_addr = config['server']
            listen_port = config['server_port']
        self._listen_port = listen_port

        if common.to_str(config['protocol']) in obfs.mu_protocol():
            self._update_users(None, None)

        addrs = socket.getaddrinfo(listen_addr, listen_port, 0,
                                   socket.SOCK_STREAM, socket.SOL_TCP)
        if len(addrs) == 0:
            raise Exception("can't get addrinfo for %s:%d" %
                            (listen_addr, listen_port))
        af, socktype, proto, canonname, sa = addrs[0]
        server_socket = socket.socket(af, socktype, proto)
        server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        server_socket.bind(sa)
        server_socket.setblocking(False)
        if config['fast_open']:
            try:
                server_socket.setsockopt(socket.SOL_TCP, 23, 5)
            except socket.error:
                logging.error('warning: fast open is not available')
                self._config['fast_open'] = False
        server_socket.listen(config.get('max_connect', 1024))
        self._server_socket = server_socket
        self._server_socket_fd = server_socket.fileno()
        self._stat_counter = stat_counter
        self._stat_callback = stat_callback 

# 需要导入模块: from shadowsocks import obfs [as 别名]
# 或者: from shadowsocks.obfs import obfs [as 别名]
def _handle_client(self, sock):
        data, r_addr = sock.recvfrom(BUF_SIZE)
        if not data:
            logging.debug('UDP handle_client: data is empty')
            return
        if self._stat_callback:
            self._stat_callback(self._listen_port, len(data))
        if not self._is_local:
            addrlen = len(r_addr[0])
            if addrlen > 255:
                # drop
                return
            data = pack_addr(r_addr[0]) + struct.pack('>H', r_addr[1]) + data
            ref_iv = [encrypt.encrypt_new_iv(self._method)]
            self._protocol.obfs.server_info.iv = ref_iv[0]
            data = self._protocol.server_udp_pre_encrypt(data)
            response = encrypt.encrypt_all_iv(self._protocol.obfs.server_info.key, self._method, 1,
                                           data, ref_iv)
            if not response:
                return
        else:
            ref_iv = [0]
            data = encrypt.encrypt_all_iv(self._protocol.obfs.server_info.key, self._method, 0,
                                       data, ref_iv)
            if not data:
                return
            self._protocol.obfs.server_info.recv_iv = ref_iv[0]
            data = self._protocol.client_udp_post_decrypt(data)
            header_result = parse_header(data)
            if header_result is None:
                return
            #connecttype, dest_addr, dest_port, header_length = header_result
            #logging.debug('UDP handle_client %s:%d to %s:%d' % (common.to_str(r_addr[0]), r_addr[1], dest_addr, dest_port))

            response = b'\x00\x00\x00' + data
        client_addr = self._client_fd_to_server_addr.get(sock.fileno())
        if client_addr:
            self.server_transfer_dl += len(response)
            self.write_to_server_socket(response, client_addr[0])
            key = client_key(client_addr[0], client_addr[1])
            client = self._cache_dns_client.get(key, None)
            if client:
                logging.debug("remove dns client %s:%d" % (client_addr[0][0], client_addr[0][1]))
                del self._cache_dns_client[key]
                self._close_client(client)
        else:
            # this packet is from somewhere else we know
            # simply drop that packet
            pass 

# 需要导入模块: from shadowsocks import obfs [as 别名]
# 或者: from shadowsocks.obfs import obfs [as 别名]
def __init__(self, config, dns_resolver, is_local, stat_callback=None, stat_counter=None):
        self._config = config
        self._is_local = is_local
        self._dns_resolver = dns_resolver
        self._closed = False
        self._eventloop = None
        self._fd_to_handlers = {}
        self.server_transfer_ul = 0
        self.server_transfer_dl = 0
        self.server_connections = 0
        self.protocol_data = obfs.obfs(config['protocol']).init_data()
        self.obfs_data = obfs.obfs(config['obfs']).init_data()

        if config.get('connect_verbose_info', 0) > 0:
            common.connect_log = logging.info

        self._timeout = config['timeout']
        self._timeouts = []  # a list for all the handlers
        # we trim the timeouts once a while
        self._timeout_offset = 0   # last checked position for timeout
        self._handler_to_timeouts = {}  # key: handler value: index in timeouts

        if is_local:
            listen_addr = config['local_address']
            listen_port = config['local_port']
        else:
            listen_addr = config['server']
            listen_port = config['server_port']
        self._listen_port = listen_port

        addrs = socket.getaddrinfo(listen_addr, listen_port, 0,
                                   socket.SOCK_STREAM, socket.SOL_TCP)
        if len(addrs) == 0:
            raise Exception("can't get addrinfo for %s:%d" %
                            (listen_addr, listen_port))
        af, socktype, proto, canonname, sa = addrs[0]
        server_socket = socket.socket(af, socktype, proto)
        server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        server_socket.bind(sa)
        server_socket.setblocking(False)
        if config['fast_open']:
            try:
                server_socket.setsockopt(socket.SOL_TCP, 23, 5)
            except socket.error:
                logging.error('warning: fast open is not available')
                self._config['fast_open'] = False
        server_socket.listen(config.get('max_connect', 1024))
        self._server_socket = server_socket
        self._stat_counter = stat_counter
        self._stat_callback = stat_callback