Files
NetBirdMSP-Appliance/app/services/npm_service.py
2026-02-07 21:13:50 +01:00

287 lines
9.5 KiB
Python

"""Nginx Proxy Manager API integration.
NPM uses JWT authentication — there are no static API tokens.
Every API session starts with a login (POST /api/tokens) using email + password,
which returns a short-lived JWT. That JWT is then used as Bearer token for all
subsequent requests.
Creates, updates, and deletes proxy host entries so each customer's NetBird
dashboard is accessible at ``{subdomain}.{base_domain}`` with automatic
Let's Encrypt SSL certificates.
"""
import logging
from typing import Any
import httpx
logger = logging.getLogger(__name__)
# Timeout for NPM API calls (seconds)
NPM_TIMEOUT = 30
async def _npm_login(client: httpx.AsyncClient, api_url: str, email: str, password: str) -> str:
"""Authenticate with NPM and return a JWT token.
NPM does NOT support static API keys. Auth is always:
POST /api/tokens with {"identity": "<email>", "secret": "<password>"}
Args:
client: httpx async client.
api_url: NPM API base URL (e.g. ``http://npm:81/api``).
email: NPM login email / identity.
password: NPM login password / secret.
Returns:
JWT token string.
Raises:
RuntimeError: If login fails.
"""
resp = await client.post(
f"{api_url}/tokens",
json={"identity": email, "secret": password},
)
if resp.status_code in (200, 201):
data = resp.json()
token = data.get("token")
if token:
logger.debug("NPM login successful for %s", email)
return token
raise RuntimeError("NPM login response did not contain a token.")
raise RuntimeError(
f"NPM login failed (HTTP {resp.status_code}): {resp.text[:300]}"
)
async def test_npm_connection(api_url: str, email: str, password: str) -> dict[str, Any]:
"""Test connectivity to NPM by logging in and listing proxy hosts.
Args:
api_url: NPM API base URL.
email: NPM login email.
password: NPM login password.
Returns:
Dict with ``ok`` (bool) and ``message`` (str).
"""
try:
async with httpx.AsyncClient(timeout=NPM_TIMEOUT) as client:
token = await _npm_login(client, api_url, email, password)
headers = {"Authorization": f"Bearer {token}"}
resp = await client.get(f"{api_url}/nginx/proxy-hosts", headers=headers)
if resp.status_code == 200:
count = len(resp.json())
return {"ok": True, "message": f"Connected. Login OK. {count} proxy hosts found."}
return {
"ok": False,
"message": f"Login OK but listing hosts returned {resp.status_code}: {resp.text[:200]}",
}
except RuntimeError as exc:
return {"ok": False, "message": str(exc)}
except httpx.ConnectError:
return {"ok": False, "message": "Connection refused. Is NPM running and reachable?"}
except httpx.TimeoutException:
return {"ok": False, "message": "Connection timed out."}
except Exception as exc:
return {"ok": False, "message": f"Unexpected error: {exc}"}
async def create_proxy_host(
api_url: str,
npm_email: str,
npm_password: str,
domain: str,
forward_host: str,
forward_port: int = 80,
admin_email: str = "",
subdomain: str = "",
customer_id: int = 0,
) -> dict[str, Any]:
"""Create a proxy host entry in NPM with SSL for a customer.
Logs in first to get a JWT, then creates the proxy host with advanced
routing config for management, signal, and relay containers.
Args:
api_url: NPM API base URL.
npm_email: NPM login email.
npm_password: NPM login password.
domain: Full domain (e.g. ``kunde1.example.com``).
forward_host: Container name for the dashboard.
forward_port: Port to forward to (default 80).
admin_email: Email for Let's Encrypt.
subdomain: Customer subdomain for building container names.
customer_id: Customer ID for building container names.
Returns:
Dict with ``proxy_id`` on success or ``error`` on failure.
"""
# Build advanced Nginx config to route sub-paths to different containers
mgmt_container = f"netbird-kunde{customer_id}-management"
signal_container = f"netbird-kunde{customer_id}-signal"
relay_container = f"netbird-kunde{customer_id}-relay"
advanced_config = f"""
# NetBird Management API
location /api {{
proxy_pass http://{mgmt_container}:80;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}}
# NetBird Signal (gRPC-Web)
location /signalexchange. {{
grpc_pass grpc://{signal_container}:80;
grpc_set_header Host $host;
}}
# NetBird Relay (WebSocket)
location /relay {{
proxy_pass http://{relay_container}:80;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
}}
"""
payload = {
"domain_names": [domain],
"forward_scheme": "http",
"forward_host": forward_host,
"forward_port": forward_port,
"certificate_id": 0,
"ssl_forced": True,
"hsts_enabled": True,
"hsts_subdomains": False,
"http2_support": True,
"block_exploits": True,
"allow_websocket_upgrade": True,
"access_list_id": 0,
"advanced_config": advanced_config.strip(),
"meta": {
"letsencrypt_agree": True,
"letsencrypt_email": admin_email,
"dns_challenge": False,
},
}
try:
async with httpx.AsyncClient(timeout=NPM_TIMEOUT) as client:
# Step 1: Login to NPM
token = await _npm_login(client, api_url, npm_email, npm_password)
headers = {
"Authorization": f"Bearer {token}",
"Content-Type": "application/json",
}
# Step 2: Create proxy host
resp = await client.post(
f"{api_url}/nginx/proxy-hosts", json=payload, headers=headers
)
if resp.status_code in (200, 201):
data = resp.json()
proxy_id = data.get("id")
logger.info("Created NPM proxy host %s (id=%s)", domain, proxy_id)
# Step 3: Request SSL certificate
await _request_ssl(client, api_url, headers, proxy_id, domain, admin_email)
return {"proxy_id": proxy_id}
else:
error_msg = f"NPM returned {resp.status_code}: {resp.text[:300]}"
logger.error("Failed to create proxy host: %s", error_msg)
return {"error": error_msg}
except RuntimeError as exc:
logger.error("NPM login failed: %s", exc)
return {"error": f"NPM login failed: {exc}"}
except Exception as exc:
logger.error("NPM API error: %s", exc)
return {"error": str(exc)}
async def _request_ssl(
client: httpx.AsyncClient,
api_url: str,
headers: dict,
proxy_id: int,
domain: str,
admin_email: str,
) -> None:
"""Request a Let's Encrypt SSL certificate for a proxy host.
Args:
client: httpx client (already authenticated).
api_url: NPM API base URL.
headers: Auth headers with Bearer token.
proxy_id: The proxy host ID.
domain: The domain to certify.
admin_email: Contact email for LE.
"""
ssl_payload = {
"domain_names": [domain],
"meta": {
"letsencrypt_agree": True,
"letsencrypt_email": admin_email,
"dns_challenge": False,
},
}
try:
resp = await client.post(
f"{api_url}/nginx/certificates", json=ssl_payload, headers=headers
)
if resp.status_code in (200, 201):
cert_id = resp.json().get("id")
# Assign certificate to proxy host
await client.put(
f"{api_url}/nginx/proxy-hosts/{proxy_id}",
json={"certificate_id": cert_id},
headers=headers,
)
logger.info("SSL certificate assigned to proxy host %s", proxy_id)
else:
logger.warning("SSL request returned %s: %s", resp.status_code, resp.text[:200])
except Exception as exc:
logger.warning("SSL certificate request failed: %s", exc)
async def delete_proxy_host(
api_url: str, npm_email: str, npm_password: str, proxy_id: int
) -> bool:
"""Delete a proxy host from NPM.
Logs in first to get a fresh JWT, then deletes the proxy host.
Args:
api_url: NPM API base URL.
npm_email: NPM login email.
npm_password: NPM login password.
proxy_id: The proxy host ID to delete.
Returns:
True on success.
"""
try:
async with httpx.AsyncClient(timeout=NPM_TIMEOUT) as client:
token = await _npm_login(client, api_url, npm_email, npm_password)
headers = {"Authorization": f"Bearer {token}"}
resp = await client.delete(
f"{api_url}/nginx/proxy-hosts/{proxy_id}", headers=headers
)
if resp.status_code in (200, 204):
logger.info("Deleted NPM proxy host %d", proxy_id)
return True
logger.warning(
"Failed to delete proxy host %d: %s %s",
proxy_id, resp.status_code, resp.text[:200],
)
return False
except Exception as exc:
logger.error("NPM delete error: %s", exc)
return False