hermes-agent/hermes_cli/telegram_managed_bot.py
Shannon Sands 6bf55a473e Add CLI Telegram QR onboarding
Co-authored-by: Teknium <127238744+teknium1@users.noreply.github.com>
2026-06-05 03:20:10 -07:00

358 lines
11 KiB
Python

"""Telegram Managed Bot onboarding client.
Uses Telegram's Managed Bots feature to create a user-owned child bot without
manual BotFather token copy-paste. Hermes talks only to the Nous onboarding
service; the raw Telegram token is saved locally after one-time retrieval.
"""
from __future__ import annotations
import os
import re
import secrets
import sys
import time
import urllib.parse
from dataclasses import dataclass
from typing import Optional
import httpx
# Default pairing API base URL (Nous-hosted Cloudflare Worker).
# Override for PoC/staging with TELEGRAM_ONBOARDING_URL.
DEFAULT_API_URL = "https://setup.hermes-agent.nousresearch.com"
TELEGRAM_ONBOARDING_URL_ENV = "TELEGRAM_ONBOARDING_URL"
# The Nous-hosted manager bot username (without @). The backend returns the
# actual deep link, so this is only used by local helpers/tests.
DEFAULT_MANAGER_BOT = "HermesSetupBot"
DEFAULT_BOT_NAME = "Hermes Agent"
DEFAULT_POLL_TIMEOUT = 180
POLL_INTERVAL = 2
_USERNAME_SLUG_ALPHABET = "abcdefghijklmnopqrstuvwxyz234567"
_TELEGRAM_BOT_TOKEN_RE = re.compile(r"^\d+:[A-Za-z0-9_-]{30,}$")
@dataclass(frozen=True)
class TelegramPairing:
"""Pairing record returned by the Telegram onboarding service."""
pairing_id: str
poll_token: str
suggested_username: str
deep_link: str
qr_payload: str
expires_at: str | None = None
@dataclass(frozen=True)
class TelegramBotSetupResult:
"""Successful Telegram onboarding result returned by the setup service."""
token: str
bot_username: str | None = None
owner_user_id: int | None = None
def _api_url(api_url: str | None = None) -> str:
"""Resolve the onboarding API URL, honoring the PoC env override."""
return (
api_url or os.environ.get(TELEGRAM_ONBOARDING_URL_ENV) or DEFAULT_API_URL
).rstrip("/")
def is_valid_telegram_bot_token(token: object) -> bool:
"""Return True when *token* has Telegram's bot-token shape."""
return isinstance(token, str) and bool(_TELEGRAM_BOT_TOKEN_RE.match(token))
def _parse_owner_user_id(value: object) -> int | None:
if isinstance(value, bool):
return None
if isinstance(value, int):
return value if value > 0 else None
if isinstance(value, str) and value.isdecimal():
parsed = int(value)
return parsed if parsed > 0 else None
return None
def render_qr_terminal(url: str) -> str:
"""Render a URL as a QR code string suitable for terminal output."""
try:
import io
import qrcode # type: ignore[import-untyped]
qr = qrcode.QRCode(
version=None,
error_correction=qrcode.constants.ERROR_CORRECT_L,
box_size=1,
border=1,
)
qr.add_data(url)
qr.make(fit=True)
buf = io.StringIO()
qr.print_ascii(out=buf, invert=True)
return buf.getvalue()
except ImportError:
return ""
def print_qr_code(url: str, *, include_link: bool = True) -> None:
"""Print a QR code to stdout, with URL fallback if qrcode is missing."""
qr_text = render_qr_terminal(url)
if qr_text:
print(qr_text)
else:
print(" (Install 'qrcode' for a scannable QR code: pip install qrcode)")
if include_link:
print(f" Link: {url}")
def generate_username_slug(length: int = 16) -> str:
"""Generate a base32-ish slug for Telegram username correlation.
Sixteen characters from a 32-symbol alphabet gives 80 bits of entropy while
keeping ``hermes_<slug>_bot`` under Telegram's 32-character username limit.
"""
return "".join(secrets.choice(_USERNAME_SLUG_ALPHABET) for _ in range(length))
def generate_bot_username(profile_name: Optional[str] = None) -> str:
"""Generate a secure suggested bot username like ``hermes_<slug>_bot``.
``profile_name`` is accepted for backward compatibility with the original
PoC, but is intentionally not embedded in the username. The username has to
carry enough entropy for backend correlation.
"""
_ = profile_name
return f"hermes_{generate_username_slug()}_bot"
def generate_deep_link(
manager_bot: str = DEFAULT_MANAGER_BOT,
suggested_username: Optional[str] = None,
suggested_name: Optional[str] = None,
) -> str:
"""Build a ``t.me/newbot`` deep link for managed bot creation."""
manager = manager_bot.lstrip("@")
username = suggested_username or generate_bot_username()
base_url = (
"https://t.me/newbot/"
f"{urllib.parse.quote(manager)}/"
f"{urllib.parse.quote(username)}"
)
if suggested_name:
params = urllib.parse.urlencode({"name": suggested_name})
return f"{base_url}?{params}"
return base_url
def generate_pairing_nonce() -> str:
"""Generate a legacy-compatible random nonce string.
The new protocol uses service-created ``pairing_id`` + bearer
``poll_token`` instead of a path nonce, but this helper is harmless and
still useful for callers/tests that need a generic random id.
"""
return secrets.token_hex(16)
def create_pairing(
api_url: str | None = None,
bot_name: str = DEFAULT_BOT_NAME,
timeout: float = 10.0,
) -> TelegramPairing | None:
"""Create a Telegram onboarding pairing.
``POST /v1/telegram/pairings`` returns the deep link, QR payload, public
pairing id, and secret poll token. The token is only used as a bearer
credential while polling.
"""
try:
resp = httpx.post(
f"{_api_url(api_url)}/v1/telegram/pairings",
json={"bot_name": bot_name},
timeout=timeout,
)
if resp.status_code not in (200, 201):
return None
data = resp.json()
except (httpx.HTTPError, ValueError):
return None
required = ("pairing_id", "poll_token", "suggested_username", "deep_link")
if not all(isinstance(data.get(key), str) and data.get(key) for key in required):
return None
qr_payload = data.get("qr_payload") or data["deep_link"]
if not isinstance(qr_payload, str):
return None
expires_at = data.get("expires_at")
return TelegramPairing(
pairing_id=data["pairing_id"],
poll_token=data["poll_token"],
suggested_username=data["suggested_username"],
deep_link=data["deep_link"],
qr_payload=qr_payload,
expires_at=expires_at if isinstance(expires_at, str) else None,
)
def poll_pairing_result_once(
api_url: str | None,
pairing: TelegramPairing,
timeout: float = 10.0,
) -> TelegramBotSetupResult | None:
"""Poll the onboarding service once. Returns setup metadata when ready."""
resp = httpx.get(
f"{_api_url(api_url)}/v1/telegram/pairings/{pairing.pairing_id}",
headers={"Authorization": f"Bearer {pairing.poll_token}"},
timeout=timeout,
)
if resp.status_code != 200:
return None
data = resp.json()
if data.get("status") != "ready":
return None
token = data.get("token")
if not is_valid_telegram_bot_token(token):
return None
bot_username = data.get("bot_username")
return TelegramBotSetupResult(
token=token,
bot_username=bot_username
if isinstance(bot_username, str) and bot_username
else None,
owner_user_id=_parse_owner_user_id(data.get("owner_user_id")),
)
def poll_pairing_once(
api_url: str | None,
pairing: TelegramPairing,
timeout: float = 10.0,
) -> str | None:
"""Poll the onboarding service once. Returns the token when ready."""
result = poll_pairing_result_once(api_url, pairing, timeout=timeout)
return result.token if result else None
def poll_for_setup_result(
api_url: str | None,
pairing: TelegramPairing,
timeout: float = DEFAULT_POLL_TIMEOUT,
interval: float = POLL_INTERVAL,
) -> Optional[TelegramBotSetupResult]:
"""Poll the pairing API until setup metadata is available or timeout."""
deadline = time.monotonic() + timeout
while time.monotonic() < deadline:
try:
result = poll_pairing_result_once(api_url, pairing)
if result:
return result
except (httpx.HTTPError, ValueError):
pass
time.sleep(interval)
return None
def poll_for_token(
api_url: str | None,
pairing: TelegramPairing,
timeout: float = DEFAULT_POLL_TIMEOUT,
interval: float = POLL_INTERVAL,
) -> Optional[str]:
"""Poll the pairing API until the bot token is available or timeout."""
result = poll_for_setup_result(api_url, pairing, timeout=timeout, interval=interval)
return result.token if result else None
def auto_setup_telegram_bot_result(
api_url: str | None = None,
manager_bot: str = DEFAULT_MANAGER_BOT,
profile_name: Optional[str] = None,
poll_timeout: float = DEFAULT_POLL_TIMEOUT,
) -> Optional[TelegramBotSetupResult]:
"""Run the full automatic Telegram bot creation flow."""
_ = manager_bot, profile_name
resolved_api_url = _api_url(api_url)
print()
print(f" Contacting Hermes Telegram onboarding service: {resolved_api_url}")
sys.stdout.flush()
pairing = create_pairing(resolved_api_url)
if not pairing:
print(" ✗ Could not reach the Hermes Telegram onboarding service.")
print(" Try the manual setup instead, or check your network.")
return None
print(" ✓ Pairing created")
print(" Rendering QR code...")
sys.stdout.flush()
print()
print(" Scan this QR code with your phone, or open the link below:")
print()
print_qr_code(pairing.qr_payload, include_link=False)
print()
print(f" Link: {pairing.deep_link}")
print()
print(" When Telegram opens, tap 'Create Bot' to confirm.")
print(" (You can edit the bot display name before confirming)")
print()
spinner_chars = "⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏"
start = time.monotonic()
deadline = start + poll_timeout
idx = 0
while time.monotonic() < deadline:
char = spinner_chars[idx % len(spinner_chars)]
elapsed = int(time.monotonic() - start)
remaining = max(0, int(poll_timeout - elapsed))
sys.stdout.write(
f"\r {char} Waiting for bot creation... ({remaining}s remaining) "
)
sys.stdout.flush()
idx += 1
try:
result = poll_pairing_result_once(resolved_api_url, pairing)
if result:
sys.stdout.write(
"\r ✓ Bot created successfully! \n"
)
sys.stdout.flush()
return result
except (httpx.HTTPError, ValueError):
pass
time.sleep(POLL_INTERVAL)
sys.stdout.write("\r ✗ Timed out waiting for bot creation. \n")
sys.stdout.flush()
print(" The bot may still be created — check Telegram.")
print(" You can paste the token manually below, or re-run setup.")
return None
def auto_setup_telegram_bot(
api_url: str | None = None,
manager_bot: str = DEFAULT_MANAGER_BOT,
profile_name: Optional[str] = None,
poll_timeout: float = DEFAULT_POLL_TIMEOUT,
) -> Optional[str]:
"""Run automatic Telegram bot creation and return only the bot token."""
result = auto_setup_telegram_bot_result(
api_url=api_url,
manager_bot=manager_bot,
profile_name=profile_name,
poll_timeout=poll_timeout,
)
return result.token if result else None