mirror of
https://gitea.publichub.eu/oscar.krause/fastapi-dls.git
synced 2024-11-10 08:28:49 +00:00
568 lines
22 KiB
Python
568 lines
22 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 as env
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from dotenv import load_dotenv
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from fastapi import FastAPI
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from fastapi.requests import Request
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from json import loads as json_loads
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from datetime import datetime, timedelta
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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, JWTError
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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 as JSONr, HTMLResponse as HTMLr, Response, RedirectResponse
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from sqlalchemy import create_engine
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from sqlalchemy.orm import sessionmaker
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from starlette.staticfiles import StaticFiles
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from starlette.templating import Jinja2Templates
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from util import load_key, load_file
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from orm import Origin, Lease, init as db_init, migrate
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load_dotenv('../version.env')
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TZ = datetime.now().astimezone().tzinfo
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VERSION, COMMIT, DEBUG = env('VERSION', 'unknown'), env('COMMIT', 'unknown'), bool(env('DEBUG', False))
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config = dict(openapi_url=None, docs_url=None, redoc_url=None) # dict(openapi_url='/-/openapi.json', docs_url='/-/docs', redoc_url='/-/redoc')
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app = FastAPI(title='FastAPI-DLS', description='Minimal Delegated License Service (DLS).', version=VERSION, **config)
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app.mount('/static', StaticFiles(directory=join(dirname(__file__), 'static'), html=True), name='static'),
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templates = Jinja2Templates(directory=join(dirname(__file__), 'templates'))
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db = create_engine(str(env('DATABASE', 'sqlite:///db.sqlite')))
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db_init(db), migrate(db)
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# everything prefixed with "INSTANCE_*" is used as "SERVICE_INSTANCE_*" or "SI_*" in official dls service
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DLS_URL = str(env('DLS_URL', 'localhost'))
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DLS_PORT = int(env('DLS_PORT', '443'))
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SITE_KEY_XID = str(env('SITE_KEY_XID', '00000000-0000-0000-0000-000000000000'))
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INSTANCE_REF = str(env('INSTANCE_REF', '10000000-0000-0000-0000-000000000001'))
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ALLOTMENT_REF = str(env('ALLOTMENT_REF', '20000000-0000-0000-0000-000000000001'))
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INSTANCE_KEY_RSA = load_key(str(env('INSTANCE_KEY_RSA', join(dirname(__file__), 'cert/instance.private.pem'))))
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INSTANCE_KEY_PUB = load_key(str(env('INSTANCE_KEY_PUB', join(dirname(__file__), 'cert/instance.public.pem'))))
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TOKEN_EXPIRE_DELTA = relativedelta(days=int(env('TOKEN_EXPIRE_DAYS', 1)), hours=int(env('TOKEN_EXPIRE_HOURS', 0)))
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LEASE_EXPIRE_DELTA = relativedelta(days=int(env('LEASE_EXPIRE_DAYS', 90)), hours=int(env('LEASE_EXPIRE_HOURS', 0)))
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LEASE_RENEWAL_PERIOD = float(env('LEASE_RENEWAL_PERIOD', 0.15))
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LEASE_RENEWAL_DELTA = timedelta(days=int(env('LEASE_EXPIRE_DAYS', 90)), hours=int(env('LEASE_EXPIRE_HOURS', 0)))
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CLIENT_TOKEN_EXPIRE_DELTA = relativedelta(years=12)
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CORS_ORIGINS = str(env('CORS_ORIGINS', '')).split(',') if (env('CORS_ORIGINS')) else [f'https://{DLS_URL}']
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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.RS256)
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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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logging.basicConfig()
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logger = logging.getLogger(__name__)
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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.get('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('/', summary='* Index')
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async def index():
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return RedirectResponse('/-/')
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@app.get('/-/', summary='* Index')
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async def _index(request: Request):
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return templates.TemplateResponse(name='views/index.html', context={'request': request, 'VERSION': VERSION})
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@app.get('/-/health', summary='* Health')
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async def _health():
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return JSONr({'status': 'up'})
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@app.get('/-/config', summary='* Config', description='returns environment variables.')
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async def _config():
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return JSONr({
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'VERSION': str(VERSION),
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'COMMIT': str(COMMIT),
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'DEBUG': str(DEBUG),
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'DLS_URL': str(DLS_URL),
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'DLS_PORT': str(DLS_PORT),
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'SITE_KEY_XID': str(SITE_KEY_XID),
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'INSTANCE_REF': str(INSTANCE_REF),
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'ALLOTMENT_REF': [str(ALLOTMENT_REF)],
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'TOKEN_EXPIRE_DELTA': str(TOKEN_EXPIRE_DELTA),
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'LEASE_EXPIRE_DELTA': str(LEASE_EXPIRE_DELTA),
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'LEASE_RENEWAL_PERIOD': str(LEASE_RENEWAL_PERIOD),
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'CORS_ORIGINS': str(CORS_ORIGINS),
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'TZ': str(TZ),
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})
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@app.get('/-/readme', summary='* Readme')
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async def _readme(request: Request):
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from markdown import markdown
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content = load_file('../README.md').decode('utf-8')
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markdown = markdown(text=content, extensions=['tables', 'fenced_code', 'md_in_html', 'nl2br', 'toc'])
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context = {'request': request, 'markdown': markdown, 'VERSION': VERSION}
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return templates.TemplateResponse(name='views/dashboard_readme.html', context=context)
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@app.get('/-/manage', summary='* Management UI')
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async def _manage(request: Request):
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return templates.TemplateResponse(name='views/manage.html', context={'request': request, 'VERSION': VERSION})
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@app.get('/-/dashboard', summary='* Dashboard')
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async def _dashboard(request: Request):
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return templates.TemplateResponse(name='views/dashboard.html', context={'request': request, 'VERSION': VERSION})
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@app.get('/-/dashboard/origins', summary='* Dashboard - Origins')
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async def _dashboard_origins(request: Request):
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return templates.TemplateResponse(name='views/dashboard_origins.html', context={'request': request, 'VERSION': VERSION})
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@app.get('/-/dashboard/leases', summary='* Dashboard - Leases')
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async def _dashboard_origins(request: Request):
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return templates.TemplateResponse(name='views/dashboard_leases.html', context={'request': request, 'VERSION': VERSION})
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@app.get('/-/origins', summary='* Origins')
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async def _origins(request: Request, leases: bool = False):
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session = sessionmaker(bind=db)()
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response = []
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for origin in session.query(Origin).all():
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x = origin.serialize()
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if leases:
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serialize = dict(renewal_period=LEASE_RENEWAL_PERIOD, renewal_delta=LEASE_RENEWAL_DELTA)
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x['leases'] = list(map(lambda _: _.serialize(**serialize), Lease.find_by_origin_ref(db, origin.origin_ref)))
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response.append(x)
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session.close()
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return JSONr(response)
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@app.delete('/-/origins', summary='* Origins')
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async def _origins_delete(request: Request):
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Origin.delete(db)
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return Response(status_code=201)
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@app.delete('/-/origins/{origin_ref}', summary='* Origins')
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async def _origins_delete_origin_ref(request: Request, origin_ref: str):
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if Origin.delete(db, [origin_ref]) == 1:
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return Response(status_code=201)
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return JSONr(status_code=404, content={'status': 404, 'detail': 'lease not found'})
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@app.get('/-/leases', summary='* Leases')
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async def _leases(request: Request, origin: bool = False):
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session = sessionmaker(bind=db)()
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response = []
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for lease in session.query(Lease).all():
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serialize = dict(renewal_period=LEASE_RENEWAL_PERIOD, renewal_delta=LEASE_RENEWAL_DELTA)
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x = lease.serialize(**serialize)
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if origin:
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lease_origin = session.query(Origin).filter(Origin.origin_ref == lease.origin_ref).first()
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if lease_origin is not None:
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x['origin'] = lease_origin.serialize()
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response.append(x)
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session.close()
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return JSONr(response)
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@app.delete('/-/leases/expired', summary='* Leases')
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async def _lease_delete_expired(request: Request):
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Lease.delete_expired(db)
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return Response(status_code=201)
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@app.delete('/-/lease/{lease_ref}', summary='* Lease')
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async def _lease_delete(request: Request, lease_ref: str):
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if Lease.delete(db, lease_ref) == 1:
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return Response(status_code=201)
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return JSONr(status_code=404, content={'status': 404, 'detail': 'lease not found'})
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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', summary='* Client-Token', description='creates a new messenger token for this service instance')
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async def _client_token():
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cur_time = datetime.utcnow()
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exp_time = cur_time + CLIENT_TOKEN_EXPIRE_DELTA
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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": [ALLOTMENT_REF],
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"fulfillment_class_ref_list": [],
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"service_instance_configuration": {
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"nls_service_instance_ref": INSTANCE_REF,
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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": {
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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": int(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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}
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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")}.tok'
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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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@app.post('/auth/v1/origin', description='find or create an origin')
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async def auth_v1_origin(request: Request):
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j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
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origin_ref = j.get('candidate_origin_ref')
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logging.info(f'> [ origin ]: {origin_ref}: {j}')
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data = Origin(
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origin_ref=origin_ref,
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hostname=j.get('environment').get('hostname'),
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guest_driver_version=j.get('environment').get('guest_driver_version'),
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os_platform=j.get('environment').get('os_platform'), os_version=j.get('environment').get('os_version'),
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)
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Origin.create_or_update(db, data)
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response = {
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"origin_ref": origin_ref,
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"environment": j.get('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 JSONr(response)
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# venv/lib/python3.9/site-packages/nls_services_auth/test/test_origins_controller.py
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@app.post('/auth/v1/origin/update', description='update an origin evidence')
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async def auth_v1_origin_update(request: Request):
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j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
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origin_ref = j.get('origin_ref')
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logging.info(f'> [ update ]: {origin_ref}: {j}')
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data = Origin(
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origin_ref=origin_ref,
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hostname=j.get('environment').get('hostname'),
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guest_driver_version=j.get('environment').get('guest_driver_version'),
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os_platform=j.get('environment').get('os_platform'), os_version=j.get('environment').get('os_version'),
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)
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Origin.create_or_update(db, data)
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response = {
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"environment": j.get('environment'),
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"prompts": None,
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"sync_timestamp": cur_time.isoformat()
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}
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return JSONr(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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@app.post('/auth/v1/code', description='get an authorization code')
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async def auth_v1_code(request: Request):
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j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
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origin_ref = j.get('origin_ref')
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logging.info(f'> [ code ]: {origin_ref}: {j}')
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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.get('code_challenge'),
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'origin_ref': j.get('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_code = jws.sign(payload, key=jwt_encode_key, headers={'kid': payload.get('kid')}, algorithm=ALGORITHMS.RS256)
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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 JSONr(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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@app.post('/auth/v1/token', description='exchange auth code and verifier for token')
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async def auth_v1_token(request: Request):
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j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
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try:
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payload = jwt.decode(token=j.get('auth_code'), key=jwt_decode_key)
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except JWTError as e:
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return JSONr(status_code=400, content={'status': 400, 'title': 'invalid token', 'detail': str(e)})
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origin_ref = payload.get('origin_ref')
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logging.info(f'> [ auth ]: {origin_ref}: {j}')
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# validate the code challenge
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challenge = b64enc(sha256(j.get('code_verifier').encode('utf-8')).digest()).rstrip(b'=').decode('utf-8')
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if payload.get('challenge') != challenge:
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return JSONr(status_code=401, content={'status': 401, 'detail': 'expected challenge did not match verifier'})
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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': 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 JSONr(response)
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# venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_multi_controller.py
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@app.post('/leasing/v1/lessor', description='request multiple leases (borrow) for current origin')
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async def leasing_v1_lessor(request: Request):
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j, token, cur_time = json_loads((await request.body()).decode('utf-8')), __get_token(request), datetime.utcnow()
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try:
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token = __get_token(request)
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except JWTError:
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return JSONr(status_code=401, content={'status': 401, 'detail': 'token is not valid'})
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origin_ref = token.get('origin_ref')
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scope_ref_list = j.get('scope_ref_list')
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logging.info(f'> [ create ]: {origin_ref}: create leases for scope_ref_list {scope_ref_list}')
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lease_result_list = []
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for scope_ref in scope_ref_list:
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# if scope_ref not in [ALLOTMENT_REF]:
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# return JSONr(status_code=500, detail=f'no service instances found for scopes: ["{scope_ref}"]')
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lease_ref = str(uuid4())
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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": lease_ref,
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"created": cur_time.isoformat(),
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"expires": expires.isoformat(),
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"recommended_lease_renewal": LEASE_RENEWAL_PERIOD,
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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 = Lease(origin_ref=origin_ref, lease_ref=lease_ref, lease_created=cur_time, lease_expires=expires)
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Lease.create_or_update(db, data)
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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 JSONr(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', description='get active leases for current origin')
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async def leasing_v1_lessor_lease(request: Request):
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token, cur_time = __get_token(request), datetime.utcnow()
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origin_ref = token.get('origin_ref')
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active_lease_list = list(map(lambda x: x.lease_ref, Lease.find_by_origin_ref(db, origin_ref)))
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logging.info(f'> [ leases ]: {origin_ref}: found {len(active_lease_list)} active leases')
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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 JSONr(response)
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# venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_single_controller.py
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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}', description='renew a lease')
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async def leasing_v1_lease_renew(request: Request, lease_ref: str):
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token, cur_time = __get_token(request), datetime.utcnow()
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origin_ref = token.get('origin_ref')
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logging.info(f'> [ renew ]: {origin_ref}: renew {lease_ref}')
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entity = Lease.find_by_origin_ref_and_lease_ref(db, origin_ref, lease_ref)
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if entity is None:
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return JSONr(status_code=404, content={'status': 404, 'detail': 'requested lease not available'})
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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": LEASE_RENEWAL_PERIOD,
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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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Lease.renew(db, entity, expires, cur_time)
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return JSONr(response)
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# venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_single_controller.py
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@app.delete('/leasing/v1/lease/{lease_ref}', description='release (return) a lease')
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async def leasing_v1_lease_delete(request: Request, lease_ref: str):
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token, cur_time = __get_token(request), datetime.utcnow()
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origin_ref = token.get('origin_ref')
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logging.info(f'> [ return ]: {origin_ref}: return {lease_ref}')
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entity = Lease.find_by_lease_ref(db, lease_ref)
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if entity.origin_ref != origin_ref:
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return JSONr(status_code=403, content={'status': 403, 'detail': 'access or operation forbidden'})
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if entity is None:
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return JSONr(status_code=404, content={'status': 404, 'detail': 'requested lease not available'})
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if Lease.delete(db, lease_ref) == 0:
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return JSONr(status_code=404, content={'status': 404, 'detail': 'lease not found'})
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response = {
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"lease_ref": lease_ref,
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"prompts": None,
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"sync_timestamp": cur_time.isoformat(),
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}
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return JSONr(response)
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# venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_multi_controller.py
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@app.delete('/leasing/v1/lessor/leases', description='release all leases')
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async def leasing_v1_lessor_lease_remove(request: Request):
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token, cur_time = __get_token(request), datetime.utcnow()
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origin_ref = token.get('origin_ref')
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released_lease_list = list(map(lambda x: x.lease_ref, Lease.find_by_origin_ref(db, origin_ref)))
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deletions = Lease.cleanup(db, origin_ref)
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logging.info(f'> [ remove ]: {origin_ref}: removed {deletions} leases')
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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 JSONr(response)
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@app.post('/leasing/v1/lessor/shutdown', description='shutdown all leases')
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async def leasing_v1_lessor_shutdown(request: Request):
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j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
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token = j.get('token')
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token = jwt.decode(token=token, key=jwt_decode_key, algorithms=ALGORITHMS.RS256, options={'verify_aud': False})
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origin_ref = token.get('origin_ref')
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released_lease_list = list(map(lambda x: x.lease_ref, Lease.find_by_origin_ref(db, origin_ref)))
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deletions = Lease.cleanup(db, origin_ref)
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logging.info(f'> [ shutdown ]: {origin_ref}: removed {deletions} leases')
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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 JSONr(response)
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@app.on_event('startup')
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async def app_on_startup():
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logger.info(f'''
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Using timezone: {str(TZ)}. Make sure this is correct and match your clients!
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Your clients renew their license every {str(Lease.calculate_renewal(LEASE_RENEWAL_PERIOD, LEASE_RENEWAL_DELTA))}.
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If the renewal fails, the license is {str(LEASE_RENEWAL_DELTA)} valid.
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Your client-token file (.tok) is valid for {str(CLIENT_TOKEN_EXPIRE_DELTA)}.
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''')
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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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