oscar.krause/fastapi-dls
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added cors support and improved logging

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Oscar Krause 2022-12-21 10:41:20 +01:00
parent 42705be631
commit e323fd3488
2 changed files with 26 additions and 1 deletions
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2
README.md
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@ -81,10 +81,12 @@ volumes:
| Variable | Default | Usage |
|---------------------|-----------------------|---------------------------------------------------------------------------------------|
| `DEBUG` | `false` | Toggles `fastapi` debug mode |
| `DLS_URL` | `localhost` | Used in client-token to tell guest driver where dls instance is reachable |
| `DLS_PORT` | `443` | Used in client-token to tell guest driver where dls instance is reachable |
| `LEASE_EXPIRE_DAYS` | `90` | Lease time in days |
| `DATABASE` | `sqlite:///db.sqlite` | See [official dataset docs](https://dataset.readthedocs.io/en/latest/quickstart.html) |
| `CORS_ORIGINS` | `https://{DLS_URL}` | Sets `Access-Control-Allow-Origin` header (comma separated string) |
# Installation

25
app/main.py
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@ -1,8 +1,11 @@
import logging
from base64 import b64encode as b64enc
from hashlib import sha256
from uuid import uuid4
from os.path import join, dirname
from os import getenv
from dotenv import dotenv_values
from fastapi import FastAPI, HTTPException
from fastapi.requests import Request
from fastapi.encoders import jsonable_encoder
@ -12,6 +15,7 @@ from dateutil.relativedelta import relativedelta
from calendar import timegm
from jose import jws, jwk, jwt
from jose.constants import ALGORITHMS
from starlette.middleware.cors import CORSMiddleware
from starlette.responses import StreamingResponse, JSONResponse, HTMLResponse
import dataset
from Crypto.PublicKey import RSA
@ -35,7 +39,13 @@ def load_key(filename) -> RsaKey:
# todo: initialize certificate (or should be done by user, and passed through "volumes"?)
app, db = FastAPI(), dataset.connect(str(getenv('DATABASE', 'sqlite:///db.sqlite')))
__details = dict(
title='FastAPI-DLS',
description='Minimal Delegated License Service (DLS).',
version=VERSION,
)
app, db = FastAPI(**__details), dataset.connect(str(getenv('DATABASE', 'sqlite:///db.sqlite')))
TOKEN_EXPIRE_DELTA = relativedelta(hours=1) # days=1
LEASE_EXPIRE_DELTA = relativedelta(days=int(getenv('LEASE_EXPIRE_DAYS', 90)))
@ -46,9 +56,22 @@ SITE_KEY_XID = getenv('SITE_KEY_XID', '00000000-0000-0000-0000-000000000000')
INSTANCE_KEY_RSA = load_key(join(dirname(__file__), 'cert/instance.private.pem'))
INSTANCE_KEY_PUB = load_key(join(dirname(__file__), 'cert/instance.public.pem'))
CORS_ORIGINS = getenv('CORS_ORIGINS').split(',') if (getenv('CORS_ORIGINS')) else f'https://{DLS_URL}' # todo: prevent static https
jwt_encode_key = jwk.construct(INSTANCE_KEY_RSA.export_key().decode('utf-8'), algorithm=ALGORITHMS.RS256)
jwt_decode_key = jwk.construct(INSTANCE_KEY_PUB.export_key().decode('utf-8'), algorithm=ALGORITHMS.RS512)
app.debug = DEBUG
app.add_middleware(
CORSMiddleware,
allow_origins=CORS_ORIGINS,
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
logger.setLevel(logging.DEBUG if DEBUG else logging.INFO)
def get_token(request: Request) -> dict:
authorization_header = request.headers['authorization']