migrated api to database-config (Site, Instance)

app/main.py

@@ -9,18 +9,17 @@ from dotenv import load_dotenv
 from fastapi import FastAPI
 from fastapi.requests import Request
 from json import loads as json_loads
-from datetime import datetime, timedelta
+from datetime import datetime
 from dateutil.relativedelta import relativedelta
 from calendar import timegm
-from jose import jws, jwk, jwt, JWTError
+from jose import jws, jwt, JWTError
 from jose.constants import ALGORITHMS
 from starlette.middleware.cors import CORSMiddleware
 from starlette.responses import StreamingResponse, JSONResponse as JSONr, HTMLResponse as HTMLr, Response, RedirectResponse
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
 
-from util import load_key, load_file
-from orm import Origin, Lease, init as db_init, migrate
+from orm import init as db_init, migrate, Site, Instance, Origin, Lease
 
 load_dotenv('../version.env')
 
@@ -41,20 +40,9 @@ db_init(db), migrate(db)
 # DLS setup (static)
 DLS_URL = str(env('DLS_URL', 'localhost'))
 DLS_PORT = int(env('DLS_PORT', '443'))
-SITE_KEY_XID = str(env('SITE_KEY_XID', '00000000-0000-0000-0000-000000000000'))
-INSTANCE_REF = str(env('INSTANCE_REF', '10000000-0000-0000-0000-000000000001'))
-ALLOTMENT_REF = str(env('ALLOTMENT_REF', '20000000-0000-0000-0000-000000000001'))
-INSTANCE_KEY_RSA = load_key(str(env('INSTANCE_KEY_RSA', join(dirname(__file__), 'cert/instance.private.pem'))))
-INSTANCE_KEY_PUB = load_key(str(env('INSTANCE_KEY_PUB', join(dirname(__file__), 'cert/instance.public.pem'))))
-TOKEN_EXPIRE_DELTA = relativedelta(days=int(env('TOKEN_EXPIRE_DAYS', 1)), hours=int(env('TOKEN_EXPIRE_HOURS', 0)))
-LEASE_EXPIRE_DELTA = relativedelta(days=int(env('LEASE_EXPIRE_DAYS', 90)), hours=int(env('LEASE_EXPIRE_HOURS', 0)))
-LEASE_RENEWAL_PERIOD = float(env('LEASE_RENEWAL_PERIOD', 0.15))
-LEASE_RENEWAL_DELTA = timedelta(days=int(env('LEASE_EXPIRE_DAYS', 90)), hours=int(env('LEASE_EXPIRE_HOURS', 0)))
-CLIENT_TOKEN_EXPIRE_DELTA = relativedelta(years=12)
 CORS_ORIGINS = str(env('CORS_ORIGINS', '')).split(',') if (env('CORS_ORIGINS')) else [f'https://{DLS_URL}']
 
-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.RS256)
+ALLOTMENT_REF = str(env('ALLOTMENT_REF', '20000000-0000-0000-0000-000000000001'))  # todo
 
 # fastapi middleware
 app.debug = DEBUG
@@ -72,7 +60,19 @@ logger = logging.getLogger(__name__)
 logger.setLevel(logging.DEBUG if DEBUG else logging.INFO)
 
 
-def __get_token(request: Request) -> dict:
+def validate_settings():
+    session = sessionmaker(bind=db)()
+
+    lease_expire_delta_min, lease_expire_delta_max = 86_400, 7_776_000
+    for instance in session.query(Instance).all():
+        lease_expire_delta = instance.lease_expire_delta
+        if lease_expire_delta < 86_400 or lease_expire_delta > 7_776_000:
+            logging.warning(f'> [ instance ]: {instance.instance_ref}: "lease_expire_delta" should be between {lease_expire_delta_min} and {lease_expire_delta_max}')
+
+    session.close()
+
+
+def __get_token(request: Request, jwt_decode_key: "jose.jwt") -> dict:
     authorization_header = request.headers.get('authorization')
     token = authorization_header.split(' ')[1]
     return jwt.decode(token=token, key=jwt_decode_key, algorithms=ALGORITHMS.RS256, options={'verify_aud': False})
@@ -95,18 +95,20 @@ async def _health():
 
 @app.get('/-/config', summary='* Config', description='returns environment variables.')
 async def _config():
+    default_site, default_instance = Site.get_default_site(db), Instance.get_default_instance(db)
+
     return JSONr({
         'VERSION': str(VERSION),
         'COMMIT': str(COMMIT),
         'DEBUG': str(DEBUG),
         'DLS_URL': str(DLS_URL),
         'DLS_PORT': str(DLS_PORT),
-        'SITE_KEY_XID': str(SITE_KEY_XID),
-        'INSTANCE_REF': str(INSTANCE_REF),
+        'SITE_KEY_XID': str(default_site.site_key),
+        'INSTANCE_REF': str(default_instance.instance_ref),
         'ALLOTMENT_REF': [str(ALLOTMENT_REF)],
-        'TOKEN_EXPIRE_DELTA': str(TOKEN_EXPIRE_DELTA),
-        'LEASE_EXPIRE_DELTA': str(LEASE_EXPIRE_DELTA),
-        'LEASE_RENEWAL_PERIOD': str(LEASE_RENEWAL_PERIOD),
+        'TOKEN_EXPIRE_DELTA': str(default_instance.get_token_expire_delta()),
+        'LEASE_EXPIRE_DELTA': str(default_instance.get_lease_expire_delta()),
+        'LEASE_RENEWAL_PERIOD': str(default_instance.lease_renewal_period),
         'CORS_ORIGINS': str(CORS_ORIGINS),
         'TZ': str(TZ),
     })
@@ -166,8 +168,7 @@ async def _origins(request: Request, leases: bool = False):
     for origin in session.query(Origin).all():
         x = origin.serialize()
         if leases:
-            serialize = dict(renewal_period=LEASE_RENEWAL_PERIOD, renewal_delta=LEASE_RENEWAL_DELTA)
-            x['leases'] = list(map(lambda _: _.serialize(**serialize), Lease.find_by_origin_ref(db, origin.origin_ref)))
+            x['leases'] = list(map(lambda _: _.serialize(), Lease.find_by_origin_ref(db, origin.origin_ref)))
         response.append(x)
     session.close()
     return JSONr(response)
@@ -184,8 +185,7 @@ async def _leases(request: Request, origin: bool = False):
     session = sessionmaker(bind=db)()
     response = []
     for lease in session.query(Lease).all():
-        serialize = dict(renewal_period=LEASE_RENEWAL_PERIOD, renewal_delta=LEASE_RENEWAL_DELTA)
-        x = lease.serialize(**serialize)
+        x = lease.serialize()
         if origin:
             lease_origin = session.query(Origin).filter(Origin.origin_ref == lease.origin_ref).first()
             if lease_origin is not None:
@@ -206,7 +206,13 @@ async def _lease_delete(request: Request, lease_ref: str):
 @app.get('/-/client-token', summary='* Client-Token', description='creates a new messenger token for this service instance')
 async def _client_token():
     cur_time = datetime.utcnow()
-    exp_time = cur_time + CLIENT_TOKEN_EXPIRE_DELTA
+
+    default_instance = Instance.get_default_instance(db)
+    public_key = default_instance.get_public_key()
+    # todo: implemented request parameter to support different instances
+    jwt_encode_key = default_instance.get_jwt_encode_key()
+
+    exp_time = cur_time + default_instance.get_client_token_expire_delta()
 
     payload = {
         "jti": str(uuid4()),
@@ -219,7 +225,7 @@ async def _client_token():
         "scope_ref_list": [ALLOTMENT_REF],
         "fulfillment_class_ref_list": [],
         "service_instance_configuration": {
-            "nls_service_instance_ref": INSTANCE_REF,
+            "nls_service_instance_ref": default_instance.instance_ref,
             "svc_port_set_list": [
                 {
                     "idx": 0,
@@ -231,10 +237,10 @@ async def _client_token():
         },
         "service_instance_public_key_configuration": {
             "service_instance_public_key_me": {
-                "mod": hex(INSTANCE_KEY_PUB.public_key().n)[2:],
-                "exp": int(INSTANCE_KEY_PUB.public_key().e),
+                "mod": hex(public_key.public_key().n)[2:],
+                "exp": int(public_key.public_key().e),
             },
-            "service_instance_public_key_pem": INSTANCE_KEY_PUB.export_key().decode('utf-8'),
+            "service_instance_public_key_pem": public_key.export_key().decode('utf-8'),
             "key_retention_mode": "LATEST_ONLY"
         },
     }
@@ -316,13 +322,16 @@ async def auth_v1_code(request: Request):
     delta = relativedelta(minutes=15)
     expires = cur_time + delta
 
+    default_site = Site.get_default_site(db)
+    jwt_encode_key = Instance.get_default_instance(db).get_jwt_encode_key()
+
     payload = {
         'iat': timegm(cur_time.timetuple()),
         'exp': timegm(expires.timetuple()),
         'challenge': j.get('code_challenge'),
         'origin_ref': j.get('origin_ref'),
-        'key_ref': SITE_KEY_XID,
-        'kid': SITE_KEY_XID
+        'key_ref': default_site.site_key,
+        'kid': default_site.site_key,
     }
 
     auth_code = jws.sign(payload, key=jwt_encode_key, headers={'kid': payload.get('kid')}, algorithm=ALGORITHMS.RS256)
@@ -342,8 +351,11 @@ async def auth_v1_code(request: Request):
 async def auth_v1_token(request: Request):
     j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
 
+    default_site, default_instance = Site.get_default_site(db), Instance.get_default_instance(db)
+    jwt_encode_key, jwt_decode_key = default_instance.get_jwt_encode_key(), default_instance.get_jwt_decode_key()
+
     try:
-        payload = jwt.decode(token=j.get('auth_code'), key=jwt_decode_key)
+        payload = jwt.decode(token=j.get('auth_code'), key=jwt_decode_key, algorithms=[ALGORITHMS.RS256])
     except JWTError as e:
         return JSONr(status_code=400, content={'status': 400, 'title': 'invalid token', 'detail': str(e)})
 
@@ -355,7 +367,7 @@ async def auth_v1_token(request: Request):
     if payload.get('challenge') != challenge:
         return JSONr(status_code=401, content={'status': 401, 'detail': 'expected challenge did not match verifier'})
 
-    access_expires_on = cur_time + TOKEN_EXPIRE_DELTA
+    access_expires_on = cur_time + default_instance.get_token_expire_delta()
 
     new_payload = {
         'iat': timegm(cur_time.timetuple()),
@@ -364,8 +376,8 @@ async def auth_v1_token(request: Request):
         'aud': 'https://cls.nvidia.org',
         'exp': timegm(access_expires_on.timetuple()),
         'origin_ref': origin_ref,
-        'key_ref': SITE_KEY_XID,
-        'kid': SITE_KEY_XID,
+        'key_ref': default_site.site_key,
+        'kid': default_site.site_key,
     }
 
     auth_token = jwt.encode(new_payload, key=jwt_encode_key, headers={'kid': payload.get('kid')}, algorithm=ALGORITHMS.RS256)
@@ -382,10 +394,13 @@ async def auth_v1_token(request: Request):
 # venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_multi_controller.py
 @app.post('/leasing/v1/lessor', description='request multiple leases (borrow) for current origin')
 async def leasing_v1_lessor(request: Request):
-    j, token, cur_time = json_loads((await request.body()).decode('utf-8')), __get_token(request), datetime.utcnow()
+    j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
+
+    default_instance = Instance.get_default_instance(db)
+    jwt_decode_key = default_instance.get_jwt_decode_key()
 
     try:
-        token = __get_token(request)
+        token = __get_token(request, jwt_decode_key)
     except JWTError:
         return JSONr(status_code=401, content={'status': 401, 'detail': 'token is not valid'})
 
@@ -399,7 +414,7 @@ async def leasing_v1_lessor(request: Request):
         #     return JSONr(status_code=500, detail=f'no service instances found for scopes: ["{scope_ref}"]')
 
         lease_ref = str(uuid4())
-        expires = cur_time + LEASE_EXPIRE_DELTA
+        expires = cur_time + default_instance.get_lease_expire_delta()
         lease_result_list.append({
             "ordinal": 0,
             # https://docs.nvidia.com/license-system/latest/nvidia-license-system-user-guide/index.html
@@ -407,13 +422,13 @@ async def leasing_v1_lessor(request: Request):
                 "ref": lease_ref,
                 "created": cur_time.isoformat(),
                 "expires": expires.isoformat(),
-                "recommended_lease_renewal": LEASE_RENEWAL_PERIOD,
+                "recommended_lease_renewal": default_instance.lease_renewal_period,
                 "offline_lease": "true",
                 "license_type": "CONCURRENT_COUNTED_SINGLE"
             }
         })
 
-        data = Lease(origin_ref=origin_ref, lease_ref=lease_ref, lease_created=cur_time, lease_expires=expires)
+        data = Lease(instance_ref=default_instance.instance_ref, origin_ref=origin_ref, lease_ref=lease_ref, lease_created=cur_time, lease_expires=expires)
         Lease.create_or_update(db, data)
 
     response = {
@@ -430,7 +445,14 @@ async def leasing_v1_lessor(request: Request):
 # venv/lib/python3.9/site-packages/nls_dal_service_instance_dls/schema/service_instance/V1_0_21__product_mapping.sql
 @app.get('/leasing/v1/lessor/leases', description='get active leases for current origin')
 async def leasing_v1_lessor_lease(request: Request):
-    token, cur_time = __get_token(request), datetime.utcnow()
+    cur_time = datetime.utcnow()
+
+    jwt_decode_key = Instance.get_default_instance(db).get_jwt_decode_key()
+
+    try:
+        token = __get_token(request, jwt_decode_key)
+    except JWTError:
+        return JSONr(status_code=401, content={'status': 401, 'detail': 'token is not valid'})
 
     origin_ref = token.get('origin_ref')
 
@@ -450,7 +472,15 @@ async def leasing_v1_lessor_lease(request: Request):
 # venv/lib/python3.9/site-packages/nls_core_lease/lease_single.py
 @app.put('/leasing/v1/lease/{lease_ref}', description='renew a lease')
 async def leasing_v1_lease_renew(request: Request, lease_ref: str):
-    token, cur_time = __get_token(request), datetime.utcnow()
+    cur_time = datetime.utcnow()
+
+    default_instance = Instance.get_default_instance(db)
+    jwt_decode_key = default_instance.get_jwt_decode_key()
+
+    try:
+        token = __get_token(request, jwt_decode_key)
+    except JWTError:
+        return JSONr(status_code=401, content={'status': 401, 'detail': 'token is not valid'})
 
     origin_ref = token.get('origin_ref')
     logging.info(f'> [  renew   ]: {origin_ref}: renew {lease_ref}')
@@ -459,11 +489,11 @@ async def leasing_v1_lease_renew(request: Request, lease_ref: str):
     if entity is None:
         return JSONr(status_code=404, content={'status': 404, 'detail': 'requested lease not available'})
 
-    expires = cur_time + LEASE_EXPIRE_DELTA
+    expires = cur_time + default_instance.get_lease_expire_delta()
     response = {
         "lease_ref": lease_ref,
         "expires": expires.isoformat(),
-        "recommended_lease_renewal": LEASE_RENEWAL_PERIOD,
+        "recommended_lease_renewal": default_instance.lease_renewal_period,
         "offline_lease": True,
         "prompts": None,
         "sync_timestamp": cur_time.isoformat(),
@@ -477,7 +507,14 @@ async def leasing_v1_lease_renew(request: Request, lease_ref: str):
 # venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_single_controller.py
 @app.delete('/leasing/v1/lease/{lease_ref}', description='release (return) a lease')
 async def leasing_v1_lease_delete(request: Request, lease_ref: str):
-    token, cur_time = __get_token(request), datetime.utcnow()
+    cur_time = datetime.utcnow()
+
+    jwt_decode_key = Instance.get_default_instance(db).get_jwt_decode_key()
+
+    try:
+        token = __get_token(request, jwt_decode_key)
+    except JWTError:
+        return JSONr(status_code=401, content={'status': 401, 'detail': 'token is not valid'})
 
     origin_ref = token.get('origin_ref')
     logging.info(f'> [  return  ]: {origin_ref}: return {lease_ref}')
@@ -503,7 +540,14 @@ async def leasing_v1_lease_delete(request: Request, lease_ref: str):
 # venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_multi_controller.py
 @app.delete('/leasing/v1/lessor/leases', description='release all leases')
 async def leasing_v1_lessor_lease_remove(request: Request):
-    token, cur_time = __get_token(request), datetime.utcnow()
+    cur_time = datetime.utcnow()
+
+    jwt_decode_key = Instance.get_default_instance(db).get_jwt_decode_key()
+
+    try:
+        token = __get_token(request, jwt_decode_key)
+    except JWTError:
+        return JSONr(status_code=401, content={'status': 401, 'detail': 'token is not valid'})
 
     origin_ref = token.get('origin_ref')
 
@@ -525,6 +569,8 @@ async def leasing_v1_lessor_lease_remove(request: Request):
 async def leasing_v1_lessor_shutdown(request: Request):
     j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
 
+    jwt_decode_key = Instance.get_default_instance(db).get_jwt_decode_key()
+
     token = j.get('token')
     token = jwt.decode(token=token, key=jwt_decode_key, algorithms=ALGORITHMS.RS256, options={'verify_aud': False})
     origin_ref = token.get('origin_ref')
@@ -545,15 +591,23 @@ async def leasing_v1_lessor_shutdown(request: Request):
 
 @app.on_event('startup')
 async def app_on_startup():
+    default_instance = Instance.get_default_instance(db)
+
+    lease_renewal_period = default_instance.lease_renewal_period
+    lease_renewal_delta = default_instance.get_lease_renewal_delta()
+    client_token_expire_delta = default_instance.get_client_token_expire_delta()
+
     logger.info(f'''
     Using timezone: {str(TZ)}. Make sure this is correct and match your clients!
     
-    Your clients renew their license every {str(Lease.calculate_renewal(LEASE_RENEWAL_PERIOD, LEASE_RENEWAL_DELTA))}.
-    If the renewal fails, the license is {str(LEASE_RENEWAL_DELTA)} valid.
+    Your clients will renew their license every {str(Lease.calculate_renewal(lease_renewal_period, lease_renewal_delta))}.
+    If the renewal fails, the license is valid for {str(lease_renewal_delta)}.
     
-    Your client-token file (.tok) is valid for {str(CLIENT_TOKEN_EXPIRE_DELTA)}.
+    Your client-token file (.tok) is valid for {str(client_token_expire_delta)}.
     ''')
 
+    validate_settings()
+
 
 if __name__ == '__main__':
     import uvicorn