serve drivers directly via api if configured

app/main.py

@@ -1,11 +1,12 @@
 import logging
+import os.path
 from base64 import b64encode as b64enc
 from calendar import timegm
 from contextlib import asynccontextmanager
 from datetime import datetime, timedelta, UTC
 from hashlib import sha256
 from json import loads as json_loads
-from os import getenv as env
+from os import getenv as env, listdir
 from os.path import join, dirname
 from uuid import uuid4
 
@@ -13,6 +14,7 @@ from dateutil.relativedelta import relativedelta
 from dotenv import load_dotenv
 from fastapi import FastAPI
 from fastapi.requests import Request
+from fastapi.staticfiles import StaticFiles
 from jose import jws, jwk, jwt, JWTError
 from jose.constants import ALGORITHMS
 from sqlalchemy import create_engine
@@ -50,6 +52,7 @@ 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}']
+DRIVERS_DIR = env('DRIVERS_DIR', None)
 
 jwt_encode_key = jwk.construct(INSTANCE_KEY_RSA.pem(), algorithm=ALGORITHMS.RS256)
 jwt_decode_key = jwk.construct(INSTANCE_KEY_PUB.pem(), algorithm=ALGORITHMS.RS256)
@@ -88,6 +91,9 @@ async def lifespan(_: FastAPI):
 config = dict(openapi_url=None, docs_url=None, redoc_url=None)  # dict(openapi_url='/-/openapi.json', docs_url='/-/docs', redoc_url='/-/redoc')
 app = FastAPI(title='FastAPI-DLS', description='Minimal Delegated License Service (DLS).', version=VERSION, lifespan=lifespan, **config)
 
+if DRIVERS_DIR is not None:
+    app.mount('/-/static-drivers', StaticFiles(directory=str(DRIVERS_DIR), html=False), name='drivers')
+
 app.debug = DEBUG
 app.add_middleware(
     CORSMiddleware,
@@ -186,6 +192,25 @@ async def _manage(request: Request):
     return HTMLr(response)
 
 
+@app.get('/-/drivers/{directory:path}', summary='* List drivers directory')
+async def _drivers(request: Request, directory: str | None):
+    if DRIVERS_DIR is None:
+        return Response(status_code=404, content=f'Variable "DRIVERS_DIR" not set.')
+
+    path = os.path.join(DRIVERS_DIR, directory)
+
+    if not os.path.exists(path) and not os.path.isfile(path):
+        return Response(status_code=404, content=f'Resource "{path}" not found!')
+
+    content = [{
+        "type": "file" if os.path.isfile(f'{path}/{_}') else "folder" if os.path.isdir(f'{path}/{_}') else "unknown",
+        "name": _,
+        "link": f'/-/static-drivers/{directory}{_}',
+    } for _ in listdir(path)]
+
+    return JSONr({"directory": path, "content": content})
+
+
 @app.get('/-/origins', summary='* Origins')
 async def _origins(request: Request, leases: bool = False):
     session = sessionmaker(bind=db)()