merge manyuser 2.6.13

CHANGES

@@ -1,3 +1,6 @@
+2.6.13 2015-11-02
+- add protocol setting
+
 2.6.12 2015-10-27
 - IPv6 first
 - Fix mem leaks

shadowsocks/asyncdns.py

@@ -83,9 +83,11 @@ def detect_ipv6_supprot():
         s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
         try:
             s.connect(('ipv6.google.com', 0))
+            print('IPv6 support')
             return True
         except:
             pass
+    print('IPv6 not support')
     return False
 
 IPV6_CONNECTION_SUPPORT = detect_ipv6_supprot()
@@ -356,19 +358,34 @@ def _handle_data(self, data):
                         answer[2] == QCLASS_IN:
                     ip = answer[0]
                     break
-            if not ip and self._hostname_status.get(hostname, STATUS_IPV4) \
-                    == STATUS_IPV6:
-                self._hostname_status[hostname] = STATUS_IPV4
-                self._send_req(hostname, QTYPE_A)
+            if IPV6_CONNECTION_SUPPORT:
+                if not ip and self._hostname_status.get(hostname, STATUS_IPV4) \
+                        == STATUS_IPV6:
+                    self._hostname_status[hostname] = STATUS_IPV4
+                    self._send_req(hostname, QTYPE_A)
+                else:
+                    if ip:
+                        self._cache[hostname] = ip
+                        self._call_callback(hostname, ip)
+                    elif self._hostname_status.get(hostname, None) == STATUS_IPV4:
+                        for question in response.questions:
+                            if question[1] == QTYPE_A:
+                                self._call_callback(hostname, None)
+                                break
             else:
-                if ip:
-                    self._cache[hostname] = ip
-                    self._call_callback(hostname, ip)
-                elif self._hostname_status.get(hostname, None) == STATUS_IPV4:
-                    for question in response.questions:
-                        if question[1] == QTYPE_A:
-                            self._call_callback(hostname, None)
-                            break
+                if not ip and self._hostname_status.get(hostname, STATUS_IPV6) \
+                        == STATUS_IPV4:
+                    self._hostname_status[hostname] = STATUS_IPV6
+                    self._send_req(hostname, QTYPE_AAAA)
+                else:
+                    if ip:
+                        self._cache[hostname] = ip
+                        self._call_callback(hostname, ip)
+                    elif self._hostname_status.get(hostname, None) == STATUS_IPV6:
+                        for question in response.questions:
+                            if question[1] == QTYPE_AAAA:
+                                self._call_callback(hostname, None)
+                                break
 
     def handle_event(self, sock, fd, event):
         if sock != self._sock:

shadowsocks/local.py

@@ -43,6 +43,9 @@ def main():
 
     config = shell.get_config(True)
 
+    if not config.get('dns_ipv6', False):
+        asyncdns.IPV6_CONNECTION_SUPPORT = False
+
     daemon.daemon_exec(config)
 
     try:

shadowsocks/obfs.py

@@ -83,3 +83,7 @@ def server_decode(self, buf):
     def server_post_decrypt(self, buf):
         return self.obfs.server_post_decrypt(buf)
 
+    def dispose(self):
+        self.obfs.dispose()
+        del self.obfs
+

shadowsocks/obfsplugin/http_simple.py

@@ -192,6 +192,9 @@ def client_encode(self, buf):
             return buf
         self.send_buffer += buf
         if not self.has_sent_header:
+            port = b''
+            if self.server_info.port != 80:
+                port = b':' + common.to_bytes(str(self.server_info.port))
             self.has_sent_header = True
             http_head = b"GET / HTTP/1.1\r\n"
             http_head += b"Host: " + (self.server_info.param or self.server_info.host) + port + b"\r\n"

shadowsocks/obfsplugin/plain.py

@@ -27,6 +27,7 @@ def create_obfs(method):
 
 obfs_map = {
         'plain': (create_obfs,),
+        'origin': (create_obfs,),
 }
 
 class plain(object):
@@ -66,3 +67,6 @@ def server_decode(self, buf):
     def server_post_decrypt(self, buf):
         return buf
 
+    def dispose(self):
+        pass
+

shadowsocks/obfsplugin/verify_simple.py

@@ -57,59 +57,42 @@ def match_begin(str1, str2):
 
 class obfs_verify_data(object):
     def __init__(self):
-        self.sub_obfs = None
+        pass
 
 class verify_base(plain.plain):
     def __init__(self, method):
         super(verify_base, self).__init__(method)
         self.method = method
-        self.sub_obfs = None
 
     def init_data(self):
         return obfs_verify_data()
 
     def set_server_info(self, server_info):
-        try:
-            if server_info.param:
-                sub_param = ''
-                param_list = server_info.param.split(',', 1)
-                if len(param_list) > 1:
-                    self.sub_obfs = shadowsocks.obfs.obfs(param_list[0])
-                    sub_param = param_list[1]
-                else:
-                    self.sub_obfs = shadowsocks.obfs.obfs(server_info.param)
-                if server_info.data.sub_obfs is None:
-                    server_info.data.sub_obfs = self.sub_obfs.init_data()
-                _server_info = shadowsocks.obfs.server_info(server_info.data.sub_obfs)
-                _server_info.host = server_info.host
-                _server_info.port = server_info.port
-                _server_info.tcp_mss = server_info.tcp_mss
-                _server_info.param = sub_param
-                self.sub_obfs.set_server_info(_server_info)
-        except Exception as e:
-            shadowsocks.shell.print_exception(e)
         self.server_info = server_info
 
     def client_encode(self, buf):
-        if self.sub_obfs is not None:
-            return self.sub_obfs.client_encode(buf)
         return buf
 
     def client_decode(self, buf):
-        if self.sub_obfs is not None:
-            return self.sub_obfs.client_decode(buf)
         return (buf, False)
 
     def server_encode(self, buf):
-        if self.sub_obfs is not None:
-            return self.sub_obfs.server_encode(buf)
         return buf
 
     def server_decode(self, buf):
-        if self.sub_obfs is not None:
-            return self.sub_obfs.server_decode(buf)
         return (buf, True, False)
 
+    def get_head_size(self, buf, def_value):
+        if len(buf) < 2:
+            return def_value
+        if ord(buf[0]) == 1:
+            return 7
+        if ord(buf[0]) == 4:
+            return 19
+        if ord(buf[0]) == 3:
+            return 4 + ord(buf[1])
+        return def_value
+
 class verify_simple(verify_base):
     def __init__(self, method):
         super(verify_simple, self).__init__(method)
@@ -336,28 +319,28 @@ def insert(self, connection_id):
 
 class obfs_auth_data(object):
     def __init__(self):
-        self.sub_obfs = None
         self.client_id = {}
         self.startup_time = int(time.time() - 30) & 0xFFFFFFFF
         self.local_client_id = b''
         self.connection_id = 0
+        self.max_client = 16                         # max active client count
+        self.max_buffer = max(self.max_client, 256)  # max client id buffer size
 
     def update(self, client_id, connection_id):
         if client_id in self.client_id:
             self.client_id[client_id].update()
 
     def insert(self, client_id, connection_id):
-        max_client = 16
         if client_id not in self.client_id or not self.client_id[client_id].enable:
             active = 0
             for c_id in self.client_id:
                 if self.client_id[c_id].is_active():
                     active += 1
-            if active >= max_client:
+            if active >= self.max_client:
                 logging.warn('auth_simple: max active clients exceeded')
                 return False
 
-            if len(self.client_id) < max_client:
+            if len(self.client_id) < self.max_client:
                 if client_id not in self.client_id:
                     self.client_id[client_id] = client_queue(connection_id)
                 else:
@@ -367,7 +350,7 @@ def insert(self, client_id, connection_id):
             random.shuffle(keys)
             for c_id in keys:
                 if not self.client_id[c_id].is_active() and self.client_id[c_id].enable:
-                    if len(self.client_id) >= 256:
+                    if len(self.client_id) >= self.max_buffer:
                         del self.client_id[c_id]
                     else:
                         self.client_id[c_id].enable = False
@@ -392,6 +375,7 @@ def __init__(self, method):
         self.has_recv_header = False
         self.client_id = 0
         self.connection_id = 0
+        self.max_time_dif = 60 * 5 # time dif (second) setting
 
     def init_data(self):
         return obfs_auth_data()
@@ -422,7 +406,8 @@ def auth_data(self):
     def client_pre_encrypt(self, buf):
         ret = b''
         if not self.has_sent_header:
-            datalen = min(len(buf), common.ord(os.urandom(1)[0]) % 32 + 4)
+            head_size = self.get_head_size(buf, 30)
+            datalen = min(len(buf), random.randint(0, 31) + head_size)
             ret += self.pack_data(self.auth_data() + buf[:datalen])
             buf = buf[datalen:]
             self.has_sent_header = True
@@ -512,7 +497,8 @@ def server_post_decrypt(self, buf):
                 client_id = struct.unpack('<I', out_buf[4:8])[0]
                 connection_id = struct.unpack('<I', out_buf[8:12])[0]
                 time_dif = common.int32((int(time.time()) & 0xffffffff) - utc_time)
-                if time_dif < 60 * -3 or time_dif > 60 * 3 or common.int32(utc_time - self.server_info.data.startup_time) < 0:
+                if time_dif < -self.max_time_dif or time_dif > self.max_time_dif \
+                        or common.int32(utc_time - self.server_info.data.startup_time) < 0:
                     self.raw_trans = True
                     self.recv_buf = b''
                     logging.info('auth_simple: wrong timestamp, time_dif %d, data %s' % (time_dif, binascii.hexlify(out_buf),))

shadowsocks/server.py

@@ -54,6 +54,9 @@ def main():
         else:
             config['port_password'][str(server_port)] = config['password']
 
+    if not config.get('dns_ipv6', False):
+        asyncdns.IPV6_CONNECTION_SUPPORT = False
+
     if config.get('manager_address', 0):
         logging.info('entering manager mode')
         manager.run(config)
@@ -65,23 +68,32 @@ def main():
     port_password = config['port_password']
     del config['port_password']
     for port, password_obfs in port_password.items():
+        protocol = config.get("protocol", 'origin')
+        obfs_param = config.get("obfs_param", '')
         if type(password_obfs) == list:
             password = password_obfs[0]
             obfs = password_obfs[1]
+        elif type(password_obfs) == dict:
+            password = password_obfs.get('password', 'm')
+            protocol = password_obfs.get('protocol', 'origin')
+            obfs = password_obfs.get('obfs', 'plain')
+            obfs_param = password_obfs.get('obfs_param', '')
         else:
             password = password_obfs
             obfs = config["obfs"]
         a_config = config.copy()
         ipv6_ok = False
-        logging.info("server start with password [%s] method [%s] obfs [%s] obfs_param [%s]" %
-                (password, a_config['method'], obfs, a_config['obfs_param']))
+        logging.info("server start with protocol[%s] password [%s] method [%s] obfs [%s] obfs_param [%s]" %
+                (protocol, password, a_config['method'], obfs, obfs_param))
         if 'server_ipv6' in a_config:
             try:
                 if len(a_config['server_ipv6']) > 2 and a_config['server_ipv6'][0] == "[" and a_config['server_ipv6'][-1] == "]":
                     a_config['server_ipv6'] = a_config['server_ipv6'][1:-1]
                 a_config['server_port'] = int(port)
                 a_config['password'] = password
+                a_config['protocol'] = protocol
                 a_config['obfs'] = obfs
+                a_config['obfs_param'] = obfs_param
                 a_config['server'] = a_config['server_ipv6']
                 logging.info("starting server at [%s]:%d" %
                              (a_config['server'], int(port)))
@@ -96,7 +108,9 @@ def main():
             a_config = config.copy()
             a_config['server_port'] = int(port)
             a_config['password'] = password
+            a_config['protocol'] = protocol
             a_config['obfs'] = obfs
+            a_config['obfs_param'] = obfs_param
             logging.info("starting server at %s:%d" %
                          (a_config['server'], int(port)))
             tcp_servers.append(tcprelay.TCPRelay(a_config, dns_resolver, False))

shadowsocks/shell.py

@@ -218,6 +218,7 @@ def get_config(is_local):
 
     config['password'] = to_bytes(config.get('password', b''))
     config['method'] = to_str(config.get('method', 'aes-256-cfb'))
+    config['protocol'] = to_str(config.get('protocol', 'origin'))
     config['obfs'] = to_str(config.get('obfs', 'plain'))
     config['obfs_param'] = to_str(config.get('obfs_param', ''))
     config['port_password'] = config.get('port_password', None)