mirror of
https://git.collinwebdesigns.de/oscar.krause/fastapi-dls.git
synced 2024-11-23 23:41:06 +03:00
398 lines
15 KiB
Python
398 lines
15 KiB
Python
import logging
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from base64 import b64encode as b64enc
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from hashlib import sha256
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from uuid import uuid4
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from os.path import join, dirname
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from os import getenv
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from dotenv import dotenv_values
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from fastapi import FastAPI, HTTPException
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from fastapi.requests import Request
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from fastapi.encoders import jsonable_encoder
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import json
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from datetime import datetime
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from dateutil.relativedelta import relativedelta
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from calendar import timegm
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from jose import jws, jwk, jwt
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from jose.constants import ALGORITHMS
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from starlette.middleware.cors import CORSMiddleware
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from starlette.responses import StreamingResponse, JSONResponse, HTMLResponse
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import dataset
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from Crypto.PublicKey import RSA
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from Crypto.PublicKey.RSA import RsaKey
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logger = logging.getLogger()
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dotenv_values('version.env')
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VERSION, COMMIT, DEBUG = getenv('VERSION', 'unknown'), getenv('COMMIT', 'unknown'), bool(getenv('DEBUG', False))
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def load_file(filename) -> bytes:
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with open(filename, 'rb') as file:
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content = file.read()
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return content
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def load_key(filename) -> RsaKey:
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return RSA.import_key(extern_key=load_file(filename), passphrase=None)
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# todo: initialize certificate (or should be done by user, and passed through "volumes"?)
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__details = dict(
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title='FastAPI-DLS',
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description='Minimal Delegated License Service (DLS).',
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version=VERSION,
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)
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app, db = FastAPI(**__details), dataset.connect(str(getenv('DATABASE', 'sqlite:///db.sqlite')))
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TOKEN_EXPIRE_DELTA = relativedelta(hours=1) # days=1
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LEASE_EXPIRE_DELTA = relativedelta(days=int(getenv('LEASE_EXPIRE_DAYS', 90)))
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DLS_URL = str(getenv('DLS_URL', 'localhost'))
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DLS_PORT = int(getenv('DLS_PORT', '443'))
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SITE_KEY_XID = getenv('SITE_KEY_XID', '00000000-0000-0000-0000-000000000000')
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INSTANCE_KEY_RSA = load_key(join(dirname(__file__), 'cert/instance.private.pem'))
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INSTANCE_KEY_PUB = load_key(join(dirname(__file__), 'cert/instance.public.pem'))
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CORS_ORIGINS = getenv('CORS_ORIGINS').split(',') if (getenv('CORS_ORIGINS')) else f'https://{DLS_URL}' # todo: prevent static https
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jwt_encode_key = jwk.construct(INSTANCE_KEY_RSA.export_key().decode('utf-8'), algorithm=ALGORITHMS.RS256)
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jwt_decode_key = jwk.construct(INSTANCE_KEY_PUB.export_key().decode('utf-8'), algorithm=ALGORITHMS.RS512)
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app.debug = DEBUG
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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=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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logger.setLevel(logging.DEBUG if DEBUG else logging.INFO)
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def get_token(request: Request) -> dict:
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authorization_header = request.headers['authorization']
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token = authorization_header.split(' ')[1]
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return jwt.decode(token=token, key=jwt_decode_key, algorithms=ALGORITHMS.RS256, options={'verify_aud': False})
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@app.get('/')
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async def index():
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from markdown import markdown
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content = load_file('../README.md').decode('utf-8')
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return HTMLResponse(markdown(text=content, extensions=['tables', 'fenced_code', 'md_in_html', 'nl2br', 'toc']))
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@app.get('/status')
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async def status(request: Request):
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return JSONResponse({'status': 'up', 'version': VERSION, 'commit': COMMIT, 'debug': DEBUG})
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@app.get('/-/origins')
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async def _origins(request: Request):
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response = list(map(lambda x: jsonable_encoder(x), db['origin'].all()))
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return JSONResponse(response)
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@app.get('/-/leases')
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async def _leases(request: Request):
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response = list(map(lambda x: jsonable_encoder(x), db['lease'].all()))
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return JSONResponse(response)
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# venv/lib/python3.9/site-packages/nls_core_service_instance/service_instance_token_manager.py
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@app.get('/client-token')
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async def client_token():
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cur_time = datetime.utcnow()
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exp_time = cur_time + relativedelta(years=12)
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service_instance_public_key_configuration = {
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"service_instance_public_key_me": {
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"mod": hex(INSTANCE_KEY_PUB.public_key().n)[2:],
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"exp": INSTANCE_KEY_PUB.public_key().e,
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},
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"service_instance_public_key_pem": INSTANCE_KEY_PUB.export_key().decode('utf-8'),
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"key_retention_mode": "LATEST_ONLY"
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}
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payload = {
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"jti": str(uuid4()),
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"iss": "NLS Service Instance",
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"aud": "NLS Licensed Client",
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"iat": timegm(cur_time.timetuple()),
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"nbf": timegm(cur_time.timetuple()),
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"exp": timegm(exp_time.timetuple()),
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"update_mode": "ABSOLUTE",
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"scope_ref_list": [str(uuid4())],
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"fulfillment_class_ref_list": [],
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"service_instance_configuration": {
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"nls_service_instance_ref": "00000000-0000-0000-0000-000000000000",
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"svc_port_set_list": [
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{
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"idx": 0,
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"d_name": "DLS",
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"svc_port_map": [{"service": "auth", "port": DLS_PORT}, {"service": "lease", "port": DLS_PORT}]
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}
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],
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"node_url_list": [{"idx": 0, "url": DLS_URL, "url_qr": DLS_URL, "svc_port_set_idx": 0}]
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},
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"service_instance_public_key_configuration": service_instance_public_key_configuration,
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}
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content = jws.sign(payload, key=jwt_encode_key, headers=None, algorithm=ALGORITHMS.RS256)
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response = StreamingResponse(iter([content]), media_type="text/plain")
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filename = f'client_configuration_token_{datetime.now().strftime("%d-%m-%y-%H-%M-%S")}'
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response.headers["Content-Disposition"] = f'attachment; filename={filename}'
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return response
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# venv/lib/python3.9/site-packages/nls_services_auth/test/test_origins_controller.py
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# {"candidate_origin_ref":"00112233-4455-6677-8899-aabbccddeeff","environment":{"fingerprint":{"mac_address_list":["ff:ff:ff:ff:ff:ff"]},"hostname":"my-hostname","ip_address_list":["192.168.178.123","fe80::","fe80::1%enp6s18"],"guest_driver_version":"510.85.02","os_platform":"Debian GNU/Linux 11 (bullseye) 11","os_version":"11 (bullseye)"},"registration_pending":false,"update_pending":false}
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@app.post('/auth/v1/origin')
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async def auth_v1_origin(request: Request):
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j = json.loads((await request.body()).decode('utf-8'))
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origin_ref = j['candidate_origin_ref']
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logging.info(f'> [ origin ]: {origin_ref}: {j}')
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data = dict(
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origin_ref=origin_ref,
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hostname=j['environment']['hostname'],
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guest_driver_version=j['environment']['guest_driver_version'],
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os_platform=j['environment']['os_platform'], os_version=j['environment']['os_version'],
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)
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db['origin'].upsert(data, ['origin_ref'])
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cur_time = datetime.utcnow()
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response = {
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"origin_ref": origin_ref,
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"environment": j['environment'],
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"svc_port_set_list": None,
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"node_url_list": None,
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"node_query_order": None,
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"prompts": None,
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"sync_timestamp": cur_time.isoformat()
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}
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return JSONResponse(response)
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# venv/lib/python3.9/site-packages/nls_services_auth/test/test_auth_controller.py
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# venv/lib/python3.9/site-packages/nls_core_auth/auth.py - CodeResponse
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# {"code_challenge":"...","origin_ref":"00112233-4455-6677-8899-aabbccddeeff"}
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@app.post('/auth/v1/code')
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async def auth_v1_code(request: Request):
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j = json.loads((await request.body()).decode('utf-8'))
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origin_ref = j['origin_ref']
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logging.info(f'> [ code ]: {origin_ref}: {j}')
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cur_time = datetime.utcnow()
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delta = relativedelta(minutes=15)
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expires = cur_time + delta
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payload = {
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'iat': timegm(cur_time.timetuple()),
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'exp': timegm(expires.timetuple()),
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'challenge': j['code_challenge'],
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'origin_ref': j['code_challenge'],
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'key_ref': SITE_KEY_XID,
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'kid': SITE_KEY_XID
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}
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auth_code = jws.sign(payload, key=jwt_encode_key, headers={'kid': payload.get('kid')}, algorithm=ALGORITHMS.RS256)
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db['auth'].delete(origin_ref=origin_ref, expires={'<=': cur_time - delta})
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db['auth'].insert(dict(origin_ref=origin_ref, code_challenge=j['code_challenge'], expires=expires))
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response = {
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"auth_code": auth_code,
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"sync_timestamp": cur_time.isoformat(),
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"prompts": None
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}
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return JSONResponse(response)
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# venv/lib/python3.9/site-packages/nls_services_auth/test/test_auth_controller.py
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# venv/lib/python3.9/site-packages/nls_core_auth/auth.py - TokenResponse
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# {"auth_code":"...","code_verifier":"..."}
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@app.post('/auth/v1/token')
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async def auth_v1_token(request: Request):
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j = json.loads((await request.body()).decode('utf-8'))
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payload = jwt.decode(token=j['auth_code'], key=jwt_decode_key)
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code_challenge = payload['origin_ref']
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origin_ref = db['auth'].find_one(code_challenge=code_challenge)['origin_ref']
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logging.info(f'> [ auth ]: {origin_ref} ({code_challenge}): {j}')
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# validate the code challenge
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if payload['challenge'] != b64enc(sha256(j['code_verifier'].encode('utf-8')).digest()).rstrip(b'=').decode('utf-8'):
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raise HTTPException(status_code=401, detail='expected challenge did not match verifier')
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cur_time = datetime.utcnow()
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access_expires_on = cur_time + TOKEN_EXPIRE_DELTA
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new_payload = {
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'iat': timegm(cur_time.timetuple()),
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'nbf': timegm(cur_time.timetuple()),
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'iss': 'https://cls.nvidia.org',
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'aud': 'https://cls.nvidia.org',
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'exp': timegm(access_expires_on.timetuple()),
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'origin_ref': payload['origin_ref'],
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'key_ref': SITE_KEY_XID,
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'kid': SITE_KEY_XID,
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}
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auth_token = jwt.encode(new_payload, key=jwt_encode_key, headers={'kid': payload.get('kid')}, algorithm=ALGORITHMS.RS256)
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response = {
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"expires": access_expires_on.isoformat(),
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"auth_token": auth_token,
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"sync_timestamp": cur_time.isoformat(),
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}
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return JSONResponse(response)
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# {'fulfillment_context': {'fulfillment_class_ref_list': []}, 'lease_proposal_list': [{'license_type_qualifiers': {'count': 1}, 'product': {'name': 'NVIDIA RTX Virtual Workstation'}}], 'proposal_evaluation_mode': 'ALL_OF', 'scope_ref_list': ['00112233-4455-6677-8899-aabbccddeeff']}
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@app.post('/leasing/v1/lessor')
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async def leasing_v1_lessor(request: Request):
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j, token = json.loads((await request.body()).decode('utf-8')), get_token(request)
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code_challenge = token['origin_ref']
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scope_ref_list = j['scope_ref_list']
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origin_ref = db['auth'].find_one(code_challenge=code_challenge)['origin_ref']
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logging.info(f'> [ create ]: {origin_ref} ({code_challenge}): create leases for scope_ref_list {scope_ref_list}')
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cur_time = datetime.utcnow()
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lease_result_list = []
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for scope_ref in scope_ref_list:
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expires = cur_time + LEASE_EXPIRE_DELTA
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lease_result_list.append({
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"ordinal": 0,
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# https://docs.nvidia.com/license-system/latest/nvidia-license-system-user-guide/index.html
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"lease": {
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"ref": scope_ref,
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"created": cur_time.isoformat(),
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"expires": expires.isoformat(),
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# The percentage of the lease period that must elapse before a licensed client can renew a license
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"recommended_lease_renewal": 0.15,
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"offline_lease": "true",
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"license_type": "CONCURRENT_COUNTED_SINGLE"
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}
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})
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data = dict(origin_ref=origin_ref, lease_ref=scope_ref, lease_created=cur_time, lease_expires=expires)
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db['lease'].insert_ignore(data, ['origin_ref', 'lease_ref']) # todo: handle update
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response = {
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"lease_result_list": lease_result_list,
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"result_code": "SUCCESS",
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"sync_timestamp": cur_time.isoformat(),
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"prompts": None
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}
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return JSONResponse(response)
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# venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_multi_controller.py
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# venv/lib/python3.9/site-packages/nls_dal_service_instance_dls/schema/service_instance/V1_0_21__product_mapping.sql
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@app.get('/leasing/v1/lessor/leases')
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async def leasing_v1_lessor_lease(request: Request):
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token = get_token(request)
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code_challenge = token['origin_ref']
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origin_ref = db['auth'].find_one(code_challenge=code_challenge)['origin_ref']
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active_lease_list = list(map(lambda x: x['lease_ref'], db['lease'].find(origin_ref=origin_ref)))
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logging.info(f'> [ leases ]: {origin_ref} ({code_challenge}): found {len(active_lease_list)} active leases')
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cur_time = datetime.utcnow()
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response = {
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"active_lease_list": active_lease_list,
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"sync_timestamp": cur_time.isoformat(),
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"prompts": None
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}
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return JSONResponse(response)
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# venv/lib/python3.9/site-packages/nls_core_lease/lease_single.py
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@app.put('/leasing/v1/lease/{lease_ref}')
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async def leasing_v1_lease_renew(request: Request, lease_ref: str):
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token = get_token(request)
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code_challenge = token['origin_ref']
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origin_ref = db['auth'].find_one(code_challenge=code_challenge)['origin_ref']
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logging.info(f'> [ renew ]: {origin_ref} ({code_challenge}): renew {lease_ref}')
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if db['lease'].count(origin_ref=origin_ref, lease_ref=lease_ref) == 0:
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raise HTTPException(status_code=404, detail='requested lease not available')
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cur_time = datetime.utcnow()
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expires = cur_time + LEASE_EXPIRE_DELTA
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response = {
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"lease_ref": lease_ref,
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"expires": expires.isoformat(),
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"recommended_lease_renewal": 0.16,
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"offline_lease": True,
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"prompts": None,
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"sync_timestamp": cur_time.isoformat(),
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}
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data = dict(origin_ref=origin_ref, lease_ref=lease_ref, lease_expires=expires, lease_last_update=cur_time)
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db['lease'].update(data, ['origin_ref', 'lease_ref'])
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return JSONResponse(response)
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@app.delete('/leasing/v1/lessor/leases')
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async def leasing_v1_lessor_lease_remove(request: Request):
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token = get_token(request)
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code_challenge = token['origin_ref']
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origin_ref = db['auth'].find_one(code_challenge=code_challenge)['origin_ref']
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released_lease_list = list(map(lambda x: x['lease_ref'], db['lease'].find(origin_ref=origin_ref)))
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deletions = db['lease'].delete(origin_ref=origin_ref)
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logging.info(f'> [ remove ]: {origin_ref} ({code_challenge}): removed {deletions} leases')
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cur_time = datetime.utcnow()
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response = {
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"released_lease_list": released_lease_list,
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"release_failure_list": None,
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"sync_timestamp": cur_time.isoformat(),
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"prompts": None
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}
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return JSONResponse(response)
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if __name__ == '__main__':
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import uvicorn
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###
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#
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# Running `python app/main.py` assumes that the user created a keypair, e.g. with openssl.
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#
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# openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout app/cert/webserver.key -out app/cert/webserver.crt
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#
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###
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logging.info(f'> Starting dev-server ...')
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ssl_keyfile = join(dirname(__file__), 'cert/webserver.key')
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ssl_certfile = join(dirname(__file__), 'cert/webserver.crt')
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uvicorn.run('main:app', host='0.0.0.0', port=443, ssl_keyfile=ssl_keyfile, ssl_certfile=ssl_certfile, reload=True)
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