Files
flowdeck/app/middleware/csrf.py
T
bruno ae3f8b473a
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feat: frontend error capture — diagnostic instantané pour Hermes
- app.js: intercepte window.onerror + unhandledrejection
  Envoie automatiquement au backend via POST /api/frontend-error
  Déduplication, throttling 1/sec, max 50 erreurs buffer local
  window.__flowdeck_errors accessible en console debug

- api.py: 2 nouvelles routes
  POST /api/frontend-error — reçoit erreurs JS, déduplique, logge
  GET /api/frontend-errors?clear=true — Hermes lit les erreurs

- csrf.py: exemption /api/frontend-error du CSRF

Usage Hermes après chaque déploiement:
  curl -s http://localhost:8080/api/frontend-errors | jq .
  → Voir TOUTES les erreurs JS en temps réel
2026-07-13 07:52:52 -04:00

51 lines
2.0 KiB
Python

"""FlowDeck — CSRF protection middleware."""
from __future__ import annotations
import secrets
from starlette.middleware.base import BaseHTTPMiddleware
from starlette.responses import JSONResponse
from starlette.requests import Request
class CSRFMiddleware(BaseHTTPMiddleware):
"""Lightweight CSRF protection for state-changing requests.
All POST/PUT/PATCH/DELETE requests must include X-CSRF-Token
header matching the csrf_token cookie.
"""
SAFE_METHODS = {"GET", "HEAD", "OPTIONS"}
EXCLUDED_PATHS = {"/api/webhook", "/api/v1", "/auth/callback", "/auth/register", "/auth/local-login", "/api/user", "/board/api/pages", "/board/api/favorites", "/api/workspace", "/api/local-workspace", "/api/settings", "/db/", "/workspace", "/api/frontend-error"}
async def dispatch(self, request: Request, call_next):
# Webhook receiver, OAuth callback, and internal API are exempt
if any(request.url.path.startswith(p) for p in self.EXCLUDED_PATHS):
return await call_next(request)
if request.method in self.SAFE_METHODS:
response = await call_next(request)
# Set CSRF cookie if not present
if "csrf_token" not in request.cookies:
response.set_cookie(
"csrf_token",
secrets.token_hex(32),
httponly=False, # Must be readable by JS
samesite="lax",
max_age=86400,
path="/",
)
return response
# Validate CSRF for state-changing methods
csrf_cookie = request.cookies.get("csrf_token", "")
csrf_header = request.headers.get("X-CSRF-Token", "")
if not csrf_cookie or not csrf_header or not secrets.compare_digest(csrf_cookie, csrf_header):
return JSONResponse(
{"detail": "CSRF validation failed"},
status_code=403,
)
return await call_next(request)