Update API and proxy docs

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# Integrating Paskia with your App
This guide covers frontend and backend integration with Paskia. For Caddy forward-auth setup, see [Caddy configuration](Caddy.md).
[API overview](API.md) · [Proxy guides](proxy/index.md)
This guide covers frontend and backend integration with Paskia. For forward-auth setup, see the [Forward-Auth Proxy Guides](proxy/index.md); Caddy users can also start from the dedicated [Caddy configuration](proxy/caddy.md).
## Frontend Integration
@@ -58,7 +60,7 @@ validator.start() // start polling (pauses on idle)
validator.stop() // stop polling
```
The validator calls `/auth/api/validate` periodically to:
The validator calls `/auth/api/validate` (see below) periodically to:
- Renew the session cookie (24h lifetime)
- Detect if the user logged out or switched accounts
- Pause polling when the page is idle, allowing sessions to expire when not used
@@ -101,7 +103,7 @@ Or link to the built-in profile page: `/auth/`
### Using Forward-Auth Headers
When using Caddy forward-auth, your backend receives `Remote-*` headers on authenticated requests. See [Headers](Headers.md) for the full list.
When using forward-auth, your backend receives `Remote-*` headers on authenticated requests. See [Headers](Headers.md) for the full list and [Forward-Auth Proxy Guides](proxy/index.md) for proxy configuration.
```python
# Example: Python/FastAPI
@@ -115,47 +117,24 @@ def get_data(request: Request):
### Direct Validation from Backend
Your backend can validate sessions directly by calling Paskia's validate endpoint:
This is useful for:
- Apps/APIs not behind proxy Forward-Auth protection
- Background jobs that need to verify a stored session
- Check extra permissions, get user context or renew session
Your backend can validate sessions directly by calling Paskia's validate endpoint [`/auth/api/validate`](api/validate.md). It generally expects client headers proxied as is, while on the URL you can specify exact requirements.
Usually it is sufficient to simply forward the headers the client sent, assuming your proxy already preserved `Host` and set `X-Forwarded-For` (otherwise set them here with original host and IP). `User-Agent` should also be forwarded if available, omitted if not: do not let your backend HTTP client add its own header.
Be sure to REMOVE connection hop-by-hop headers (these will break WebSockets among other things):
```python
import httpx
async def validate_session(request) -> dict:
"""Validate a session cookie and check permissions."""
authcookie = request.get("__Host-paskia")
response = await httpx.post(
"http://localhost:4401/auth/api/validate?perm=myapp:login+myapp:api",
headers={
"Host": request.headers["host"]
"X-Forwarded-For": request.client.host,
"Cookie": f"__Host-paskia={}",
},
)
if response.status_code != 200:
return response.json() # Return to client
# User authenticated... We are good to go!
ctx = response.json() # User and session information
"Connection", "Keep-Alive", "Proxy-Connection", "TE", "Transfer-Encoding", "Upgrade"
```
This is useful for:
- WebSocket connections where headers aren't available after handshake
- Background jobs that need to verify a stored session
- APIs not behind forward-auth (auth/restrict)
### Validate Endpoint Parameters
`POST /auth/api/validate` accepts query parameters:
| Parameter | Description |
|-----------|-------------|
| `perm=scope:name` | Require this permission (repeatable) |
| `max_age=5min` | Require recent passkey use |
Returns 200 with user info on success, 401/403 on failure.
## Proxying /auth/ to Paskia
Your app server needs to proxy `/auth/` paths to Paskia. This can be done by your application but is much easier done by Caddy or Nginx.
Your app server needs to proxy `/auth/` paths to Paskia. This can be done by your application but is much easier done by a reverse proxy. The [Forward-Auth Proxy Guides](proxy/index.md) cover Caddy, Nginx, Traefik, Apache APISIX, Envoy and HAProxy.
### Caddy