Files
notify/src/main.py

112 lines
3.9 KiB
Python

from __future__ import annotations
from contextlib import asynccontextmanager
import secrets
from typing import AsyncGenerator
from fastapi import Depends, FastAPI, status, APIRouter
from fastapi.openapi.docs import get_redoc_html, get_swagger_ui_html
from fastapi.responses import HTMLResponse
from fastapi.security import HTTPBasic, HTTPBasicCredentials
from src.application.domain.exceptions import ApplicationException
from src.infrastructure.utils import generate_instance_id
from src.infrastructure.logger import logger
from src.infrastructure.config import settings
from src.presentation.handlers import application_exception_handler, unhandled_exception_handler
from src.presentation.messaging.code import code_broker
from src.presentation.messaging.consumers import notify_broker
from src.presentation.middleware import TraceIDMiddleware, SecurityHeadersMiddleware
security = HTTPBasic()
async def verify_credentials(credentials: HTTPBasicCredentials = Depends(security)) -> HTTPBasicCredentials:
user_ok = secrets.compare_digest(credentials.username, settings.DOCS_USERNAME)
pass_ok = secrets.compare_digest(credentials.password, settings.DOCS_PASSWORD)
if not (user_ok and pass_ok):
raise ApplicationException(
status_code=status.HTTP_401_UNAUTHORIZED,
message='Unauthorized',
headers={'WWW-Authenticate': 'Basic'},
)
return credentials
@asynccontextmanager
async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
instance_id = generate_instance_id()
logger.set_instance_id(instance_id)
logger.info(f'Auth service instance started with id {instance_id}')
yield
logger.info(f'Auth service instance ended with id {instance_id}')
app: FastAPI = FastAPI(
redoc_url=None,
docs_url=None,
lifespan=lifespan,
title='Elcsa. Notify Service',
version='1.0.0',
description='',
license_info={
'name': 'MIT',
'url': 'https://opensource.org/licenses/MIT',
},
)
app.add_exception_handler(ApplicationException, application_exception_handler)
app.add_exception_handler(Exception, unhandled_exception_handler)
v1_router = APIRouter(prefix='/v1')
app.include_router(v1_router)
app.include_router(code_broker)
app.include_router(notify_broker)
# Added middleware
app.add_middleware(TraceIDMiddleware, logger=logger)
app.add_middleware(
SecurityHeadersMiddleware,
hsts=True,
hsts_preload=False,
frame_options='DENY',
referrer_policy='strict-origin-when-cross-origin',
content_security_policy="default-src 'self'; frame-ancestors 'none'; base-uri 'self'; object-src 'none'",
)
@app.get('/docs', include_in_schema=False)
async def custom_swagger_ui_html(_credentials: HTTPBasicCredentials = Depends(verify_credentials)) -> HTMLResponse:
"""Custom Swagger documentation, optionally protected with basic authentication."""
return get_swagger_ui_html(
openapi_url=getattr(app, 'openapi_url', '/openapi.json'),
title=getattr(app, 'title', 'FastAPI') + ' - Swagger UI',
oauth2_redirect_url=getattr(app, 'swagger_ui_oauth2_redirect_url', None),
swagger_js_url='https://unpkg.com/swagger-ui-dist@5/swagger-ui-bundle.js',
swagger_css_url='https://unpkg.com/swagger-ui-dist@5/swagger-ui.css',
)
@app.get('/redoc', include_in_schema=False)
async def custom_redoc_html(_credentials: HTTPBasicCredentials = Depends(verify_credentials)) -> HTMLResponse:
"""Custom ReDoc documentation, optionally protected with basic authentication."""
return get_redoc_html(
openapi_url=getattr(app, 'openapi_url', '/openapi.json'),
title=getattr(app, 'title', 'FastAPI') + ' - ReDoc',
redoc_js_url='https://cdn.jsdelivr.net/npm/redoc@next/bundles/redoc.standalone.js',
)
@app.post('/ping')
async def ping() -> dict[str, str]:
return {
'message': 'pong',
'status': 'ok',
}
@app.get('/health')
async def health() -> dict[str, str]:
return {
'status': 'ok',
}