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https://github.com/dograh-hq/dograh.git
synced 2026-06-07 07:55:16 +02:00
* fix: add CORS preflight handler and ACAO header for embed config endpoint
The GET /public/embed/config/{token} endpoint is fetched by external
websites (third-party embed sites). The global CORSMiddleware only covers
first-party origins, so external origins received no Access-Control-Allow-
Origin header, causing browser preflight failures.
Add an OPTIONS /config/{token} handler that validates the origin against the
token's allowed_domains list and returns the appropriate CORS headers.
Also inject Access-Control-Allow-Origin into the GET response via FastAPI's
response parameter so the actual request succeeds cross-origin.
Closes #383
* fix: complete public embed CORS handling
---------
Co-authored-by: Abhishek Kumar <abhishek@a6k.me>
141 lines
4.1 KiB
Python
141 lines
4.1 KiB
Python
"""Set up logging before importing anything else"""
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import sentry_sdk
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from api.constants import (
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CORS_ALLOWED_ORIGINS,
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DEPLOYMENT_MODE,
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ENABLE_TELEMETRY,
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SENTRY_DSN,
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)
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from api.logging_config import ENVIRONMENT, setup_logging
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# Set up logging and get the listener for cleanup
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setup_logging()
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if SENTRY_DSN and (
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DEPLOYMENT_MODE != "oss" or (DEPLOYMENT_MODE == "oss" and ENABLE_TELEMETRY)
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):
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sentry_sdk.init(
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dsn=SENTRY_DSN,
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send_default_pii=True,
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environment=ENVIRONMENT,
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)
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print(f"Sentry initialized in environment: {ENVIRONMENT}")
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from contextlib import asynccontextmanager
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from fastapi import APIRouter, FastAPI
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from fastapi.middleware.cors import CORSMiddleware
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from loguru import logger
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from api.constants import REDIS_URL
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from api.mcp_server import mcp
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from api.routes.main import router as main_router
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from api.services.pipecat.tracing_config import (
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handle_langfuse_sync,
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load_all_org_langfuse_credentials,
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)
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from api.services.worker_sync.manager import (
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WorkerSyncManager,
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set_worker_sync_manager,
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)
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from api.services.worker_sync.protocol import WorkerSyncEventType
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from api.tasks.arq import get_arq_redis
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API_PREFIX = "/api/v1"
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mcp_app = mcp.http_app(path="/", stateless_http=True)
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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async with mcp_app.lifespan(app):
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# warmup arq pool
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await get_arq_redis()
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# Pre-register all org-specific Langfuse exporters so they're ready
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# before any pipeline runs, without per-call DB lookups.
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await load_all_org_langfuse_credentials()
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# Start cross-worker sync manager so config changes propagate to all workers
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sync_manager = WorkerSyncManager(REDIS_URL)
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sync_manager.register(
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WorkerSyncEventType.LANGFUSE_CREDENTIALS, handle_langfuse_sync
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)
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await sync_manager.start()
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set_worker_sync_manager(sync_manager)
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yield # Run app
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# Shutdown sequence - this runs when FastAPI is shutting down
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logger.info("Starting graceful shutdown...")
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await sync_manager.stop()
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app = FastAPI(
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title="Dograh API",
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description="API for the Dograh app",
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version="1.0.0",
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openapi_url=f"{API_PREFIX}/openapi.json",
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lifespan=lifespan,
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servers=[
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{"url": "https://app.dograh.com", "description": "Production"},
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{"url": "http://localhost:8000", "description": "Local development"},
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],
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)
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# Configure CORS.
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# OSS is typically deployed with UI and API behind a single reverse proxy
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# (same-origin, so CORS does not apply). Keep it permissive without
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# credentials — wildcard + credentials is rejected by browsers and unsafe.
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# SaaS deployments must set CORS_ALLOWED_ORIGINS to an explicit allowlist.
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if DEPLOYMENT_MODE == "oss":
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cors_origins: list[str] = ["*"]
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cors_allow_credentials = False
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else:
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if not CORS_ALLOWED_ORIGINS:
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raise RuntimeError(
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"CORS_ALLOWED_ORIGINS must be set to an explicit origin allowlist "
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"when DEPLOYMENT_MODE != 'oss'"
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)
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if "*" in CORS_ALLOWED_ORIGINS:
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raise RuntimeError(
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"CORS_ALLOWED_ORIGINS cannot contain '*' with credentialed requests"
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)
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cors_origins = CORS_ALLOWED_ORIGINS
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cors_allow_credentials = True
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app.add_middleware(
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CORSMiddleware,
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allow_origins=cors_origins,
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allow_credentials=cors_allow_credentials,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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def _add_public_embed_cors_middleware() -> None:
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from api.routes.public_embed import PublicEmbedCORSMiddleware
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app.add_middleware(PublicEmbedCORSMiddleware, api_prefix=API_PREFIX)
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_add_public_embed_cors_middleware()
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api_router = APIRouter()
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# include subrouters here
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api_router.include_router(main_router)
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# main router with api prefix
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app.include_router(api_router, prefix=API_PREFIX)
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# Mount the MCP server — agents reach it at /api/v1/mcp over Streamable HTTP,
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# authenticating with the same X-API-Key header used by the REST API.
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# Mounted under /api/v1 so existing reverse-proxy rules (nginx etc.) route it
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# without any extra configuration.
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app.mount(f"{API_PREFIX}/mcp", mcp_app)
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