126 lines
4.3 KiB
Python
126 lines
4.3 KiB
Python
from fastapi import APIRouter, Depends, HTTPException, Request, Header, BackgroundTasks
|
|
from sqlalchemy.orm import Session
|
|
from typing import Dict, Any, Optional
|
|
from pydantic import BaseModel
|
|
from services.database import get_db
|
|
from services.subscription.stripe_service import StripeService
|
|
from middleware.auth_middleware import get_current_user
|
|
from loguru import logger
|
|
from models.subscription_models import SubscriptionTier, BillingCycle
|
|
import time
|
|
from collections import defaultdict
|
|
|
|
router = APIRouter()
|
|
|
|
class CreateCheckoutSessionRequest(BaseModel):
|
|
tier: SubscriptionTier
|
|
billing_cycle: BillingCycle
|
|
success_url: str
|
|
cancel_url: str
|
|
|
|
class CreatePortalSessionRequest(BaseModel):
|
|
return_url: str
|
|
|
|
|
|
_checkout_rate_limit_window_seconds = 60
|
|
_checkout_rate_limit_max_requests = 10
|
|
_checkout_attempts_by_user: Dict[str, Any] = defaultdict(list)
|
|
|
|
@router.post("/create-checkout-session")
|
|
async def create_checkout_session(
|
|
payload: CreateCheckoutSessionRequest,
|
|
db: Session = Depends(get_db),
|
|
current_user: Dict[str, Any] = Depends(get_current_user),
|
|
request: Request = None
|
|
):
|
|
"""
|
|
Create a Stripe Checkout Session for subscription.
|
|
"""
|
|
user_id = current_user.get("sub") or current_user.get("id")
|
|
if not user_id:
|
|
raise HTTPException(status_code=401, detail="User not authenticated")
|
|
|
|
now = time.time()
|
|
attempts = _checkout_attempts_by_user[user_id]
|
|
window_start = now - _checkout_rate_limit_window_seconds
|
|
attempts[:] = [ts for ts in attempts if ts >= window_start]
|
|
attempts.append(now)
|
|
_checkout_attempts_by_user[user_id] = attempts
|
|
if len(attempts) > _checkout_rate_limit_max_requests:
|
|
client_ip = request.client.host if request and request.client else "unknown"
|
|
logger.warning(f"Checkout rate limit exceeded for user_id={user_id}, ip={client_ip}, attempts={len(attempts)} in { _checkout_rate_limit_window_seconds }s")
|
|
raise HTTPException(status_code=429, detail="Too many checkout attempts. Please try again shortly.")
|
|
|
|
user_email = current_user.get("email")
|
|
|
|
stripe_service = StripeService(db)
|
|
|
|
try:
|
|
url = stripe_service.create_checkout_session(
|
|
user_id=user_id,
|
|
tier=payload.tier,
|
|
billing_cycle=payload.billing_cycle,
|
|
success_url=payload.success_url,
|
|
cancel_url=payload.cancel_url,
|
|
user_email=user_email
|
|
)
|
|
return {"url": url}
|
|
except HTTPException as e:
|
|
raise e
|
|
except Exception as e:
|
|
logger.error(f"Error creating checkout session: {e}")
|
|
raise HTTPException(status_code=500, detail="Failed to initiate checkout")
|
|
|
|
@router.post("/create-portal-session")
|
|
async def create_portal_session(
|
|
payload: CreatePortalSessionRequest,
|
|
db: Session = Depends(get_db),
|
|
current_user: Dict[str, Any] = Depends(get_current_user)
|
|
):
|
|
"""
|
|
Create a Stripe Customer Portal session for managing billing.
|
|
"""
|
|
user_id = current_user.get("sub") or current_user.get("id")
|
|
if not user_id:
|
|
raise HTTPException(status_code=401, detail="User not authenticated")
|
|
|
|
stripe_service = StripeService(db)
|
|
|
|
try:
|
|
url = stripe_service.create_portal_session(
|
|
user_id=user_id,
|
|
return_url=payload.return_url
|
|
)
|
|
return {"url": url}
|
|
except HTTPException as e:
|
|
raise e
|
|
except Exception as e:
|
|
logger.error(f"Error creating portal session: {e}")
|
|
raise HTTPException(status_code=500, detail="Failed to access billing portal")
|
|
|
|
@router.post("/webhook")
|
|
async def stripe_webhook(
|
|
request: Request,
|
|
stripe_signature: str = Header(None),
|
|
db: Session = Depends(get_db)
|
|
):
|
|
"""
|
|
Handle Stripe webhooks.
|
|
"""
|
|
if not stripe_signature:
|
|
raise HTTPException(status_code=400, detail="Missing stripe-signature header")
|
|
|
|
payload = await request.body()
|
|
stripe_service = StripeService(db)
|
|
|
|
try:
|
|
# We need to run this potentially in background or await it
|
|
# Since it's async, we can await it directly.
|
|
await stripe_service.handle_webhook(payload, stripe_signature)
|
|
return {"status": "success"}
|
|
except HTTPException as e:
|
|
raise e
|
|
except Exception as e:
|
|
logger.error(f"Error processing webhook: {e}")
|
|
raise HTTPException(status_code=500, detail="Webhook processing failed")
|