code styling

- replaced 'json.loads' with 'json_loads'
- shortened 'JSONResponse' to 'JSONr'
- shortened 'HTMLResponse' to 'HTMLr'
- replaced HTTPException with JsonResponses
- added some error handing for invalid tokens

app/main.py

@@ -6,16 +6,16 @@ from os.path import join, dirname
 from os import getenv as env
 
 from dotenv import load_dotenv
-from fastapi import FastAPI, HTTPException
+from fastapi import FastAPI
 from fastapi.requests import Request
-import json
+from json import loads as json_loads
 from datetime import datetime
 from dateutil.relativedelta import relativedelta
 from calendar import timegm
-from jose import jws, jwk, jwt
+from jose import jws, jwk, jwt, JWTError
 from jose.constants import ALGORITHMS
 from starlette.middleware.cors import CORSMiddleware
-from starlette.responses import StreamingResponse, JSONResponse, HTMLResponse, Response, RedirectResponse
+from starlette.responses import StreamingResponse, JSONResponse as JSONr, HTMLResponse as HTMLr, Response, RedirectResponse
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
 
@@ -78,12 +78,12 @@ async def _index():
 
 @app.get('/-/health', summary='* Health')
 async def _health(request: Request):
-    return JSONResponse({'status': 'up'})
+    return JSONr({'status': 'up'})
 
 
 @app.get('/-/config', summary='* Config', description='returns environment variables.')
 async def _config():
-    return JSONResponse({
+    return JSONr({
         'VERSION': str(VERSION),
         'COMMIT': str(COMMIT),
         'DEBUG': str(DEBUG),
@@ -91,7 +91,7 @@ async def _config():
         'DLS_PORT': str(DLS_PORT),
         'SITE_KEY_XID': str(SITE_KEY_XID),
         'INSTANCE_REF': str(INSTANCE_REF),
-        'ALLOTMENT_REF': [ALLOTMENT_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),
@@ -103,7 +103,7 @@ async def _config():
 async def _readme():
     from markdown import markdown
     content = load_file('../README.md').decode('utf-8')
-    return HTMLResponse(markdown(text=content, extensions=['tables', 'fenced_code', 'md_in_html', 'nl2br', 'toc']))
+    return HTMLr(markdown(text=content, extensions=['tables', 'fenced_code', 'md_in_html', 'nl2br', 'toc']))
 
 
 @app.get('/-/manage', summary='* Management UI')
@@ -137,7 +137,7 @@ async def _manage(request: Request):
         </body>
     </html>
     '''
-    return HTMLResponse(response)
+    return HTMLr(response)
 
 
 @app.get('/-/origins', summary='* Origins')
@@ -150,7 +150,7 @@ async def _origins(request: Request, leases: bool = False):
             x['leases'] = list(map(lambda _: _.serialize(), Lease.find_by_origin_ref(db, origin.origin_ref)))
         response.append(x)
     session.close()
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 @app.delete('/-/origins', summary='* Origins')
@@ -170,14 +170,14 @@ async def _leases(request: Request, origin: bool = False):
             x['origin'] = session.query(Origin).filter(Origin.origin_ref == lease.origin_ref).first().serialize()
         response.append(x)
     session.close()
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 @app.delete('/-/lease/{lease_ref}', summary='* Lease')
 async def _lease_delete(request: Request, lease_ref: str):
     if Lease.delete(db, lease_ref) == 1:
         return Response(status_code=201)
-    raise HTTPException(status_code=404, detail='lease not found')
+    return JSONr(status_code=404, content={'status': 404, 'detail': 'lease not found'})
 
 
 # venv/lib/python3.9/site-packages/nls_core_service_instance/service_instance_token_manager.py
@@ -229,7 +229,7 @@ async def _client_token():
 # venv/lib/python3.9/site-packages/nls_services_auth/test/test_origins_controller.py
 @app.post('/auth/v1/origin', description='find or create an origin')
 async def auth_v1_origin(request: Request):
-    j, cur_time = json.loads((await request.body()).decode('utf-8')), datetime.utcnow()
+    j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
 
     origin_ref = j.get('candidate_origin_ref')
     logging.info(f'> [  origin  ]: {origin_ref}: {j}')
@@ -253,13 +253,13 @@ async def auth_v1_origin(request: Request):
         "sync_timestamp": cur_time.isoformat()
     }
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 # venv/lib/python3.9/site-packages/nls_services_auth/test/test_origins_controller.py
 @app.post('/auth/v1/origin/update', description='update an origin evidence')
 async def auth_v1_origin_update(request: Request):
-    j, cur_time = json.loads((await request.body()).decode('utf-8')), datetime.utcnow()
+    j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
 
     origin_ref = j.get('origin_ref')
     logging.info(f'> [  update  ]: {origin_ref}: {j}')
@@ -279,14 +279,14 @@ async def auth_v1_origin_update(request: Request):
         "sync_timestamp": cur_time.isoformat()
     }
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 # 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
 @app.post('/auth/v1/code', description='get an authorization code')
 async def auth_v1_code(request: Request):
-    j, cur_time = json.loads((await request.body()).decode('utf-8')), datetime.utcnow()
+    j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
 
     origin_ref = j.get('origin_ref')
     logging.info(f'> [   code   ]: {origin_ref}: {j}')
@@ -311,22 +311,27 @@ async def auth_v1_code(request: Request):
         "prompts": None
     }
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 # 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
 @app.post('/auth/v1/token', description='exchange auth code and verifier for token')
 async def auth_v1_token(request: Request):
-    j, cur_time = json.loads((await request.body()).decode('utf-8')), datetime.utcnow()
+    j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
-    payload = jwt.decode(token=j.get('auth_code'), key=jwt_decode_key)
+
+    try:
+        payload = jwt.decode(token=j.get('auth_code'), key=jwt_decode_key)
+    except JWTError as e:
+        return JSONr(status_code=400, content={'status': 400, 'title': 'invalid token', 'detail': str(e)})
 
     origin_ref = payload.get('origin_ref')
     logging.info(f'> [   auth   ]: {origin_ref}: {j}')
 
     # validate the code challenge
-    if payload.get('challenge') != b64enc(sha256(j.get('code_verifier').encode('utf-8')).digest()).rstrip(b'=').decode('utf-8'):
+    challenge = b64enc(sha256(j.get('code_verifier').encode('utf-8')).digest()).rstrip(b'=').decode('utf-8')
-        raise HTTPException(status_code=401, detail='expected challenge did not match verifier')
+    if payload.get('challenge') != challenge:
+        raise JSONr(status_code=401, content={'status': 401, 'detail': 'expected challenge did not match verifier'})
 
     access_expires_on = cur_time + TOKEN_EXPIRE_DELTA
 
@@ -349,13 +354,18 @@ async def auth_v1_token(request: Request):
         "sync_timestamp": cur_time.isoformat(),
     }
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 # 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, token, cur_time = json_loads((await request.body()).decode('utf-8')), __get_token(request), datetime.utcnow()
+
+    try:
+        token = __get_token(request)
+    except JWTError:
+        return JSONr(status_code=401, content={'status': 401, 'detail': 'token is not valid'})
 
     origin_ref = token.get('origin_ref')
     scope_ref_list = j.get('scope_ref_list')
@@ -364,7 +374,7 @@ async def leasing_v1_lessor(request: Request):
     lease_result_list = []
     for scope_ref in scope_ref_list:
         # if scope_ref not in [ALLOTMENT_REF]:
-        #     raise HTTPException(status_code=500, detail=f'no service instances found for scopes: ["{scope_ref}"]')
+        #     raise JSONr(status_code=500, detail=f'no service instances found for scopes: ["{scope_ref}"]')
 
         lease_ref = str(uuid4())
         expires = cur_time + LEASE_EXPIRE_DELTA
@@ -391,7 +401,7 @@ async def leasing_v1_lessor(request: Request):
         "prompts": None
     }
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 # venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_multi_controller.py
@@ -411,7 +421,7 @@ async def leasing_v1_lessor_lease(request: Request):
         "prompts": None
     }
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 # venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_single_controller.py
@@ -425,7 +435,7 @@ async def leasing_v1_lease_renew(request: Request, lease_ref: str):
 
     entity = Lease.find_by_origin_ref_and_lease_ref(db, origin_ref, lease_ref)
     if entity is None:
-        raise HTTPException(status_code=404, detail='requested lease not available')
+        return JSONr(status_code=404, content={'status': 404, 'detail': 'requested lease not available'})
 
     expires = cur_time + LEASE_EXPIRE_DELTA
     response = {
@@ -439,7 +449,7 @@ async def leasing_v1_lease_renew(request: Request, lease_ref: str):
 
     Lease.renew(db, entity, expires, cur_time)
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 # venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_single_controller.py
@@ -452,12 +462,12 @@ async def leasing_v1_lease_delete(request: Request, lease_ref: str):
 
     entity = Lease.find_by_lease_ref(db, lease_ref)
     if entity.origin_ref != origin_ref:
-        raise HTTPException(status_code=403, detail='access or operation forbidden')
+        return JSONr(status_code=403, content={'status': 403, 'detail': 'access or operation forbidden'})
     if entity is None:
-        raise HTTPException(status_code=404, detail='requested lease not available')
+        return JSONr(status_code=404, content={'status': 404, 'detail': 'requested lease not available'})
 
     if Lease.delete(db, lease_ref) == 0:
-        raise HTTPException(status_code=404, detail='lease not found')
+        return JSONr(status_code=404, content={'status': 404, 'detail': 'lease not found'})
 
     response = {
         "lease_ref": lease_ref,
@@ -465,7 +475,7 @@ async def leasing_v1_lease_delete(request: Request, lease_ref: str):
         "sync_timestamp": cur_time.isoformat(),
     }
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 # venv/lib/python3.9/site-packages/nls_services_lease/test/test_lease_multi_controller.py
@@ -486,12 +496,12 @@ async def leasing_v1_lessor_lease_remove(request: Request):
         "prompts": None
     }
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 @app.post('/leasing/v1/lessor/shutdown', description='shutdown all leases')
 async def leasing_v1_lessor_shutdown(request: Request):
-    j, cur_time = json.loads((await request.body()).decode('utf-8')), datetime.utcnow()
+    j, cur_time = json_loads((await request.body()).decode('utf-8')), datetime.utcnow()
 
     token = j.get('token')
     token = jwt.decode(token=token, key=jwt_decode_key, algorithms=ALGORITHMS.RS256, options={'verify_aud': False})
@@ -508,7 +518,7 @@ async def leasing_v1_lessor_shutdown(request: Request):
         "prompts": None
     }
 
-    return JSONResponse(response)
+    return JSONr(response)
 
 
 if __name__ == '__main__':