Major Update

Fix: generated stop.sh cannot be executed.
Add: restart script.
Add: use getpass for password input.
Add: Paste & Go: Exchange config with ease

.gitignore

@@ -1,6 +1,9 @@
 bin/
 local/
 
+.idea/
+__pycache__/
+
 *.json
 *.conf
 start.sh

tool_common.py

@@ -0,0 +1,67 @@
+# -*- coding: utf-8 -*-
+import logging
+import json
+import traceback
+import base64
+
+
+class SimpleLogger(object):
+    def __init__(self, name=None, filename=None, fileonly=False,
+                 level=logging.INFO,
+                 default_encoding='utf-8',
+                 log_format="%(asctime)s @%(module)s [%(levelname)s] %(funcName)s: %(message)s"):
+        if name is None:
+            name = __name__
+
+        if not filename and fileonly:
+            raise Exception("FileOnly=True but no filename provided.")
+
+        self.logger = logging.getLogger(name)
+        if not getattr(self.logger, "_is_configured", None):
+            formatter = logging.Formatter(log_format)
+            if not fileonly:
+                console_handler = logging.StreamHandler()
+                console_handler.setFormatter(formatter)
+                self.logger.addHandler(console_handler)
+            if filename is not None:
+                file_handler = logging.FileHandler(filename, encoding=default_encoding)
+                file_handler.setFormatter(formatter)
+                self.logger.addHandler(file_handler)
+            self.logger.setLevel(level)
+            setattr(self.logger, "_is_configured", True)
+
+    # Just acts as a logger
+    def __getattr__(self, name):
+        return getattr(self.logger, name)
+
+
+logger = SimpleLogger()
+
+
+def load_config(filename=None):
+    config_filename = filename or "local/config.json"
+    try:
+        with open(config_filename) as f:
+            return json.loads(f.read())
+    except Exception:
+        logger.error("Unable to load config: {}".format(traceback.format_exc()))
+        return {}
+
+
+def save_config(config, filename=None):
+    config_filename = filename or "local/config.json"
+    content = json.dumps(config, ensure_ascii=False, default=str, indent=2)
+    try:
+        with open(config_filename, "w", encoding='utf-8') as f:
+            f.write(content)
+    except Exception:
+        logger.error("Unable to save config: {}".format(traceback.format_exc()))
+        logger.info("Config: {}".format(content))
+
+
+def json_to_base64(content):
+    return base64.b64encode(json.dumps(content, ensure_ascii=False).encode('utf-8')).decode('utf-8')
+
+
+def base64_to_json(content):
+    return json.loads(base64.b64decode(content).decode('utf-8'))

tool_create.py

@@ -1,16 +1,19 @@
 # -*- coding: utf-8 -*-
 import os
-import json
-import traceback
+import getpass
+from tool_common import load_config, save_config, SimpleLogger, json_to_base64
 
-try:
-    with open("local/config.json") as f:
-        content = f.read()
-    config = json.loads(content)
-    print("[WARN] Found a valid config. Creation of server is skipped.")
+
+logger = SimpleLogger()
+
+config = load_config()
+if config:
+    logger.warn("Valid config found. Creation of server is skipped.")
     exit(0)
-except Exception:
-    print(traceback.format_exc())
+else:
+    logger.info("No config found. Start creating interactively.")
+
+print("===== Choose Role =====")
 
 op_mode = input("What will this node act as? (C)lient [S]erver [M]ixed: ").strip().lower()
 if not op_mode:
@@ -40,10 +43,15 @@ if op_mode in ("s", "m"):
             break
 
         while True:
-            udp_server_password = input("Please input udp2raw tunnel password: ").strip()
+            udp_server_password = getpass.getpass('Tunnel Password: ').strip()
             if not udp_server_password:
-                print("A udp2raw tunnel password is required. Try again.")
+                print("For security reasons, a udp2raw tunnel password is required. Try again.")
                 continue
+
+            if udp_server_password != getpass.getpass('Confirm Tunnel Password: ').strip():
+                print("Password mismatch. Try again.")
+                continue
+
             break
 
         is_enable_speeder = input("Enable UDP Speeder for this tunnel? [Y/n]: ").strip()
@@ -65,7 +73,7 @@ if op_mode in ("s", "m"):
             "speeder": speeder_info
         })
 
-        if not input("Add more udp2raw server? (Keep empty to finish)").strip():
+        if not input("Add more udp2raw server? (Keep empty to finish): ").strip():
             break
 
 
@@ -83,10 +91,15 @@ if op_mode in ("c", "m"):
             break
 
         while True:
-            udp_server_password = input("Please input udp2raw tunnel password: ").strip()
+            udp_server_password = getpass.getpass('Tunnel Password: ').strip()
             if not udp_server_password:
                 print("A udp2raw tunnel password is required. Try again.")
                 continue
+
+            if udp_server_password != getpass.getpass('Confirm Tunnel Password: ').strip():
+                print("Password mismatch. Try again.")
+                continue
+
             break
 
         is_enable_speeder = input("Enable UDP Speeder for this tunnel? [Y/n]: ").strip()
@@ -135,51 +148,14 @@ print('''
 ifname = input("Input new wireguard interface name (wg0):").strip() or "wg0"
 listen_port = input("Input new wireguard listen port (51820): ").strip() or "51820"
 while True:
-    ifip = input("Input wireguard interface ip (Example: 10.0.0.1): ").strip()
+    ifip = input("Input wireguard interface ip (Example: 10.0.0.1)\n> ").strip()
     if not ifip:
         print("You MUST set a valid wireguard interface IP. Try Again.")
         continue
     break
 
-peers = []
-
-while True:
-    print("====== Adding Peer {} ======".format(len(peers) + 1))
-    while True:
-        peer_pubk = input("Enter Wireguard Peer Public Key: ").strip()
-        if not peer_pubk:
-            print("A public key is required. Try Again.")
-            continue
-        break
-    while True:
-        peer_allowed = input("Enter Wireguard Peer AllowedIPs (CIDR, Example: 10.0.0.0/24): ").strip()
-        if not peer_allowed:
-            print("Peer allowed ips required. Try Again.")
-            continue
-        break
-
-    print(">>> Choose from following udp2raw clients <<<")
-    for index, client_info in enumerate(udp2raw_config["client"]):
-        print("[{}] UDP2Raw Tunnel to Remote {}".format(index + 1, client_info["remote"]))
-
-    peer_endpoint = input("Enter Wireguard Peer Endpoint (ID from tunnel list, keep empty on server side): ").strip()
-    if peer_endpoint:
-        peer_keepalive = input("Enter Wireguard Peer Keep Alive seconds: ").strip()
-    else:
-        peer_keepalive = ""
-
-    peers.append({
-        "pubkey": peer_pubk,
-        "allowed": peer_allowed,
-        "endpoint": peer_endpoint,
-        "keepalive": peer_keepalive
-    })
-
-    if not input("Add more peers? (Keep empty to finish)").strip():
-        break
-
-print("Saving to local config...")
 
+print("Saving config...")
 config = {
     "version": 1,
     "mode": op_mode,
@@ -189,9 +165,70 @@ config = {
     "interface": ifname,
     "ip": ifip,
     "listen": listen_port,
-    "peers": peers,
+    "peers": [],
     "udp2raw": udp2raw_config
 }
+save_config(config)
 
-with open("local/config.json", "w") as f:
-    f.write(json.dumps(config, ensure_ascii=False))
+
+if op_mode in ("s", "m"):
+    print("===== Quick Import =====")
+    for info in udp2raw_config["server"]:
+        target_config = {
+            "udp2raw": {
+                "client": [{
+                    "remote": "{}:{}".format(wg_public_ip, info["port"]),
+                    "password": info["password"],
+                    "port": "",
+                    "speeder": info["speeder"]
+                }]
+            },
+            "pubkey": wg_pubk
+        }
+
+        print("Connect to this server via tunnel at port {}: (credential included) \n".format(info["port"]))
+        print("    {}\n".format(json_to_base64(target_config)))
+
+
+# Configure Peer
+
+while True:
+    print("====== Adding Peer {} ======".format(len(config["peers"]) + 1))
+    while True:
+        peer_pubk = input("Enter Wireguard Peer Public Key: ").strip()
+        if not peer_pubk:
+            print("A public key is required. Try Again.")
+            continue
+        break
+    while True:
+        peer_allowed = input("Enter Wireguard Peer AllowedIPs (CIDR, Example: 10.0.0.0/24)\n> ").strip()
+        if not peer_allowed:
+            print("Peer allowed ips required. Try Again.")
+            continue
+        break
+
+    print(">>> Choose from following udp2raw clients <<<")
+    if config["udp2raw"]["client"]:
+        for index, client_info in enumerate(config["udp2raw"]["client"]):
+            print("[{}] UDP2Raw Tunnel to Remote {}".format(index + 1, client_info["remote"]))
+    else:
+        print("  no client  ")
+
+    peer_endpoint = input("Enter Wireguard Peer Endpoint (ID from tunnel list, keep empty on server side): ").strip()
+    if peer_endpoint:
+        peer_keepalive = input("Enter Wireguard Peer Keep Alive seconds (default to 30): ").strip() or "30"
+    else:
+        peer_keepalive = "30"
+
+    config["peers"].append({
+        "pubkey": peer_pubk,
+        "allowed": peer_allowed,
+        "endpoint": peer_endpoint,
+        "keepalive": peer_keepalive
+    })
+
+    print("Saving config...")
+    save_config(config)
+
+    if not input("Add more peers? (Keep empty to finish)").strip():
+        break

tool_generate.py

@@ -1,19 +1,19 @@
 # -*- coding: utf-8 -*-
 import os
-import json
-import traceback
+from tool_common import load_config, SimpleLogger
 
-try:
-    with open("local/config.json") as f:
-        content = f.read()
-    config = json.loads(content)
-except Exception:
-    print(traceback.format_exc())
-    print("[ERROR] No valid config found.")
+
+logger = SimpleLogger()
+
+
+config = load_config()
+if not config:
+    logger.error("No valid config found.")
+    exit(1)
 
 
 if "version" not in config or int(config["version"]) < 1:
-    print("[WARN] Legacy version of config found. This may cause issues.")
+    logger.warn("[WARN] Legacy version of config found. This may cause issues.")
 
 
 op_mode = config["mode"]
@@ -21,7 +21,7 @@ udp_clients = config["udp2raw"]["client"]
 udp_servers = config["udp2raw"]["server"]
 
 
-print("Generating wireguard config...")
+logger.info("Generating wireguard config...")
 with open("local/{}.conf".format(config["interface"]), "w", encoding='utf-8') as f:
     f.write('''[Interface]
 Address = {}
@@ -48,7 +48,7 @@ AllowedIPs = {}
 
 os.system("chmod 600 {}.conf".format(config["interface"]))
 
-print("Generating start script...")
+logger.info("Generating start script...")
 with open("start.sh", "w", encoding='utf-8') as f:
     f.write('''#!/bin/bash
 set -e
@@ -86,7 +86,7 @@ tmux attach-session -t tunnel
 '''.format(config["interface"]))
 
 
-print("Generating stop script...")
+logger.info("Generating stop script...")
 with open("stop.sh", "w", encoding='utf-8') as f:
     f.write('''#!/bin/bash
 set -e
@@ -95,8 +95,20 @@ wg-quick down {}
 tmux kill-session -t tunnel
 '''.format(config["interface"]))
 
+os.system("chmod +x stop.sh")
 
-print('''[OK] Config generated. Before you run start.sh, besure to:
+
+logger.info("Generating restart script...")
+with open("restart.sh", "w", encoding='utf-8') as f:
+    f.write('''#!/bin/bash
+set -e
+./stop.sh && ./start.sh
+''')
+
+os.system("chmod +x restart.sh")
+
+
+logger.info('''[Done] Config generated. Before you run start.sh, besure to:
 1. Disable SSH Server password login.
 2. Enable UFW (or any other firewall)