fastapi-dls/app/main.py

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from base64 import b64encode as b64enc
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from hashlib import sha256
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 fastapi import FastAPI, HTTPException
from fastapi.requests import Request
import json
from datetime import datetime
from dateutil.relativedelta import relativedelta
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from calendar import timegm
from jose import jws, jwk, jwt
from jose.constants import ALGORITHMS
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from starlette.responses import StreamingResponse, JSONResponse
import dataset
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from Crypto.PublicKey import RSA
from Crypto.PublicKey.RSA import RsaKey
def load_file(filename) -> bytes:
with open(filename, 'rb') as file:
content = file.read()
return content
def load_key(filename) -> RsaKey:
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"?)
app, db = FastAPI(), dataset.connect('sqlite:///db.sqlite')
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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'))
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'))
INSTANCE_KEY_PUB = load_key(join(dirname(__file__), 'cert/instance.public.pem'))
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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)
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@app.get('/')
async def index():
return JSONResponse({'hello': 'world'})
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@app.get('/status')
async def status(request: Request):
return JSONResponse({'status': 'up'})
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# venv/lib/python3.9/site-packages/nls_core_service_instance/service_instance_token_manager.py
@app.get('/client-token')
async def client_token():
cur_time = datetime.utcnow()
exp_time = cur_time + relativedelta(years=12)
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service_instance_public_key_configuration = {
"service_instance_public_key_me": {
"mod": hex(INSTANCE_KEY_PUB.public_key().n)[2:],
"exp": INSTANCE_KEY_PUB.public_key().e,
},
"service_instance_public_key_pem": INSTANCE_KEY_PUB.export_key().decode('utf-8'),
"key_retention_mode": "LATEST_ONLY"
}
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payload = {
"jti": str(uuid4()),
"iss": "NLS Service Instance",
"aud": "NLS Licensed Client",
"iat": timegm(cur_time.timetuple()),
"nbf": timegm(cur_time.timetuple()),
"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": [],
"service_instance_configuration": {
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"nls_service_instance_ref": "00000000-0000-0000-0000-000000000000",
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"svc_port_set_list": [
{
"idx": 0,
"d_name": "DLS",
"svc_port_map": [
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{"service": "auth", "port": DLS_PORT},
{"service": "lease", "port": DLS_PORT}
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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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}
data = jws.sign(payload, key=jwt_encode_key, headers=None, algorithm='RS256')
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response = StreamingResponse(iter([data]), media_type="text/plain")
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filename = f'client_configuration_token_{datetime.now().strftime("%d-%m-%y-%H-%M-%S")}'
response.headers["Content-Disposition"] = f'attachment; filename={filename}'
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return response
# venv/lib/python3.9/site-packages/nls_services_auth/test/test_origins_controller.py
# {"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_origin(request: Request):
j = json.loads((await request.body()).decode('utf-8'))
candidate_origin_ref = j['candidate_origin_ref']
print(f'> [ origin ]: {candidate_origin_ref}: {j}')
data = dict(
candidate_origin_ref=candidate_origin_ref,
hostname=j['environment']['hostname'],
guest_driver_version=j['environment']['guest_driver_version'],
os_platform=j['environment']['os_platform'], os_version=j['environment']['os_version']
)
db['origin'].insert_ignore(data, ['candidate_origin_ref'])
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cur_time = datetime.utcnow()
response = {
"origin_ref": candidate_origin_ref,
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"environment": j['environment'],
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"svc_port_set_list": None,
"node_url_list": None,
"node_query_order": None,
"prompts": None,
"sync_timestamp": cur_time.isoformat()
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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
# venv/lib/python3.9/site-packages/nls_core_auth/auth.py - CodeResponse
# {"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_code(request: Request):
j = json.loads((await request.body()).decode('utf-8'))
origin_ref = j['origin_ref']
print(f'> [ code ]: {origin_ref}: {j}')
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cur_time = datetime.utcnow()
expires = cur_time + relativedelta(days=1)
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payload = {
'iat': timegm(cur_time.timetuple()),
'exp': timegm(expires.timetuple()),
'challenge': j['code_challenge'],
'origin_ref': j['code_challenge'],
'key_ref': SITE_KEY_XID,
'kid': SITE_KEY_XID
}
auth_code = jws.sign(payload, key=jwt_encode_key, headers={'kid': payload.get('kid')}, algorithm='RS256')
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response = {
"auth_code": auth_code,
"sync_timestamp": cur_time.isoformat(),
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"prompts": None
}
return JSONResponse(response)
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# venv/lib/python3.9/site-packages/nls_services_auth/test/test_auth_controller.py
# venv/lib/python3.9/site-packages/nls_core_auth/auth.py - TokenResponse
# {"auth_code":"...","code_verifier":"..."}
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@app.post('/auth/v1/token')
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async def auth_token(request: Request):
j = json.loads((await request.body()).decode('utf-8'))
payload = jwt.decode(token=j['auth_code'], key=jwt_decode_key)
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origin_ref = payload['origin_ref']
print(f'> [ auth ]: {origin_ref}: {j}')
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# validate the code challenge
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=403, detail='expected challenge did not match verifier')
cur_time = datetime.utcnow()
access_expires_on = cur_time + relativedelta(days=1)
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new_payload = {
'iat': timegm(cur_time.timetuple()),
'nbf': timegm(cur_time.timetuple()),
'iss': 'https://cls.nvidia.org',
'aud': 'https://cls.nvidia.org',
'exp': timegm(access_expires_on.timetuple()),
'origin_ref': payload['origin_ref'],
'key_ref': SITE_KEY_XID,
'kid': SITE_KEY_XID,
}
auth_token = jwt.encode(new_payload, key=jwt_encode_key, headers={'kid': payload.get('kid')}, algorithm='RS256')
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response = {
"expires": access_expires_on.isoformat(),
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"auth_token": auth_token,
"sync_timestamp": cur_time.isoformat(),
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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_lessor(request: Request):
j = json.loads((await request.body()).decode('utf-8'))
token = jwt.decode(request.headers['authorization'].split(' ')[1], key=jwt_decode_key, algorithms='RS256', options={'verify_aud': False})
code_challenge = token['origin_ref']
scope_ref_list = j['scope_ref_list']
print(f'> [ lessor ]: {code_challenge}: {j}')
print(f'> {code_challenge}: create leases for scope_ref_list {scope_ref_list}')
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cur_time = datetime.utcnow()
lease_result_list = []
for scope_ref in scope_ref_list:
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lease_result_list.append({
"ordinal": 0,
"lease": {
"ref": scope_ref,
"created": cur_time.isoformat(),
"expires": (cur_time + LEASE_EXPIRE_DELTA).isoformat(),
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"recommended_lease_renewal": 0.15,
"offline_lease": "true",
"license_type": "CONCURRENT_COUNTED_SINGLE"
}
})
data = dict(origin_ref=code_challenge, lease_ref=scope_ref, expires=None, last_update=None)
db['leases'].insert_ignore(data, ['origin_ref', 'lease_ref'])
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response = {
"lease_result_list": lease_result_list,
"result_code": "SUCCESS",
"sync_timestamp": cur_time.isoformat(),
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"prompts": None
}
return JSONResponse(response)
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# venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_multi_controller.py
@app.get('/leasing/v1/lessor/leases')
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async def leasing_lessor_lease(request: Request):
token = jwt.decode(request.headers['authorization'].split(' ')[1], key=key, algorithms='RS256', options={'verify_aud': False})
code_challenge = token['origin_ref']
active_lease_list = list(map(lambda x: x['lease_ref'], db['leases'].find(origin_ref=code_challenge)))
print(f'> {code_challenge}: found {len(active_lease_list)} active leases')
if len(active_lease_list) == 0:
raise HTTPException(status_code=400, detail="No leases available")
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cur_time = datetime.utcnow()
# venv/lib/python3.9/site-packages/nls_dal_service_instance_dls/schema/service_instance/V1_0_21__product_mapping.sql
response = {
# "active_lease_list": [
# # "BE276D7B-2CDB-11EC-9838-061A22468B59" # (works on Linux) GRID-Virtual-WS 2.0 CONCURRENT_COUNTED_SINGLE // 'NVIDIA Virtual PC','NVIDIA Virtual PC'
# "BE276EFE-2CDB-11EC-9838-061A22468B59" # GRID-Virtual-WS 2.0 CONCURRENT_COUNTED_SINGLE // 'NVIDIA RTX Virtual Workstation','NVIDIA RTX Virtual Workstation
# ],
"active_lease_list": active_lease_list,
"sync_timestamp": cur_time.isoformat(),
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"prompts": None
}
return JSONResponse(response)
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# venv/lib/python3.9/site-packages/nls_core_lease/lease_single.py
@app.put('/leasing/v1/lease/{lease_ref}')
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async def leasing_lease_renew(request: Request, lease_ref: str):
token = jwt.decode(request.headers['authorization'].split(' ')[1], key=jwt_decode_key, algorithms='RS256', options={'verify_aud': False})
code_challenge = token['origin_ref']
print(f'> {code_challenge}: renew {lease_ref}')
if db['leases'].count(lease_ref=lease_ref) == 0:
raise HTTPException(status_code=400, detail="No leases available")
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cur_time = datetime.utcnow()
expires = cur_time + LEASE_EXPIRE_DELTA
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response = {
"lease_ref": lease_ref,
"expires": expires.isoformat(),
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"recommended_lease_renewal": 0.16,
# 0.16 = 10 min, 0.25 = 15 min, 0.33 = 20 min, 0.5 = 30 min (should be lower than "LEASE_EXPIRE_DELTA")
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"offline_lease": True,
"prompts": None,
"sync_timestamp": cur_time.isoformat(),
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}
data = dict(lease_ref=lease_ref, origin_ref=code_challenge, expires=expires, last_update=cur_time)
db['leases'].update(data, ['lease_ref'])
return JSONResponse(response)
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@app.delete('/leasing/v1/lessor/leases')
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async def leasing_lessor_lease_remove(request: Request):
token = jwt.decode(request.headers['authorization'].split(' ')[1], key=jwt_decode_key, algorithms='RS256', options={'verify_aud': False})
code_challenge = token['origin_ref']
released_lease_list = list(map(lambda x: x['lease_ref'], db['leases'].find(origin_ref=code_challenge)))
deletions = db['leases'].delete(origin_ref=code_challenge)
print(f'> {code_challenge}: removed {deletions} leases')
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cur_time = datetime.utcnow()
response = {
"released_lease_list": released_lease_list,
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"release_failure_list": None,
"sync_timestamp": cur_time.isoformat(),
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"prompts": None
}
return JSONResponse(response)
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if __name__ == '__main__':
import uvicorn
###
#
# Running `python app/main.py` assumes that the user created a keypair, e.g. with openssl.
#
# openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout app/cert/webserver.key -out app/cert/webserver.crt
#
###
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print(f'> Starting dev-server ...')
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ssl_keyfile = join(dirname(__file__), 'cert/webserver.key')
ssl_certfile = join(dirname(__file__), 'cert/webserver.crt')
uvicorn.run('main:app', host='0.0.0.0', port=443, ssl_keyfile=ssl_keyfile, ssl_certfile=ssl_certfile, reload=True)