Add interactive IPv4/IPv6 choice for session generation.

Create a dedicated session generator script that prompts for IP mode first and update README with the new generation flow and behavior in non-interactive shells.

Co-authored-by: Cursor <cursoragent@cursor.com>

generate_session.py

@@ -0,0 +1,93 @@
+import asyncio
+import getpass
+import os
+import sys
+from pathlib import Path
+
+from telethon import TelegramClient
+from telethon.sessions import StringSession
+
+
+API_ID = int(os.getenv("TG_API_ID", "0"))
+API_HASH = os.getenv("TG_API_HASH", "")
+SESSION_FILE_PATH = os.getenv("SESSION_FILE_PATH", "./session_data/session.session")
+TG_USE_IPV6 = os.getenv("TG_USE_IPV6", "true").lower() in {"1", "true", "yes"}
+TG_CONNECT_TIMEOUT = int(os.getenv("TG_CONNECT_TIMEOUT", "30"))
+TG_REQUEST_RETRIES = int(os.getenv("TG_REQUEST_RETRIES", "10"))
+TG_CONNECTION_RETRIES = int(os.getenv("TG_CONNECTION_RETRIES", "20"))
+TG_RETRY_DELAY = int(os.getenv("TG_RETRY_DELAY", "5"))
+
+
+def validate() -> None:
+    if API_ID <= 0:
+        raise ValueError("Set TG_API_ID in environment")
+    if not API_HASH:
+        raise ValueError("Set TG_API_HASH in environment")
+
+
+def choose_ip_mode(default_ipv6: bool) -> bool:
+    default_label = "2" if default_ipv6 else "1"
+    print("Choose connection mode for Telegram session generation:")
+    print("1) IPv4")
+    print("2) IPv6")
+
+    if not sys.stdin.isatty():
+        print(f"Non-interactive shell detected, using default from env: {'IPv6' if default_ipv6 else 'IPv4'}")
+        return default_ipv6
+
+    choice = input(f"Select [1/2] (default {default_label}): ").strip().lower()
+    if choice in {"2", "ipv6", "v6"}:
+        return True
+    if choice in {"1", "ipv4", "v4"}:
+        return False
+    return default_ipv6
+
+
+async def main() -> None:
+    validate()
+    selected_use_ipv6 = choose_ip_mode(TG_USE_IPV6)
+
+    print("Starting Telegram login for StringSession generation")
+    print(
+        "Connection settings:",
+        {
+            "use_ipv6": selected_use_ipv6,
+            "connect_timeout": TG_CONNECT_TIMEOUT,
+            "request_retries": TG_REQUEST_RETRIES,
+            "connection_retries": TG_CONNECTION_RETRIES,
+            "retry_delay": TG_RETRY_DELAY,
+        },
+    )
+
+    client = TelegramClient(
+        StringSession(),
+        API_ID,
+        API_HASH,
+        use_ipv6=selected_use_ipv6,
+        timeout=TG_CONNECT_TIMEOUT,
+        request_retries=TG_REQUEST_RETRIES,
+        connection_retries=TG_CONNECTION_RETRIES,
+        retry_delay=TG_RETRY_DELAY,
+        auto_reconnect=True,
+    )
+
+    async with client:
+        phone = input("Phone number (international format, e.g. +1234567890): ").strip()
+        await client.send_code_request(phone)
+        code = input("Telegram code: ").strip()
+
+        try:
+            await client.sign_in(phone=phone, code=code)
+        except Exception:
+            password = getpass.getpass("2FA password: ")
+            await client.sign_in(password=password)
+
+        session_string = client.session.save()
+        session_path = Path(SESSION_FILE_PATH)
+        session_path.parent.mkdir(parents=True, exist_ok=True)
+        session_path.write_text(session_string + "\n", encoding="utf-8")
+        print(f"Session saved to: {session_path.resolve()}")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())

redme.md

@@ -23,6 +23,7 @@
 dbbot/
 ├── redme.md                              # этот файл
 ├── script.py                             # Telethon userbot sender -> n8n webhook
+├── generate_session.py                   # генерация новой StringSession
 ├── requirements.txt                      # зависимости python
 ├── Dockerfile                            # контейнер для script.py
 ├── .gitignore                            # исключения (секреты, кеш, сессия)
@@ -52,6 +53,21 @@ dbbot/
 
 Внутри должна быть одна строка `StringSession` без переносов и пробелов по краям.
 
+Если нужно сгенерировать новую сессию (например, для IPv6), используй:
+
+```bash
+export TG_API_ID=<your_api_id>
+export TG_API_HASH=<your_api_hash>
+export SESSION_FILE_PATH=./session_data/session.session
+python3 generate_session.py
+```
+
+Скрипт первым шагом спросит режим подключения:
+- `1) IPv4`
+- `2) IPv6`
+
+Если запуск неинтерактивный, используется значение `TG_USE_IPV6` из окружения.
+
 ### 3) Переменные окружения для контейнера
 
 Сделай локальный `.env`: