Create super user account if it does not exist (#1688)

* fix: temp create account for `super_user_id` if missing

* chore: remove dumb import

* refactor: move logic outside `crud`

* feat: add uuid4 conversion

* fix: require valid string in .env file

* fix: update the `settings.super_user` value in case or normalisation for UUID4

* fix: allow long super_user

* chore: code format

* fix: add UI redirect with the normalized user

* fix: normalize `super_user` up one level

* fix: should normalize user in non-ui mode also

lnbits/core/views/generic.py

@@ -11,6 +11,7 @@ from pydantic.types import UUID4
 from starlette.responses import HTMLResponse, JSONResponse
 
 from lnbits.core import db
+from lnbits.core.helpers import to_valid_user_id
 from lnbits.core.models import User
 from lnbits.decorators import check_admin, check_user_exists
 from lnbits.helpers import template_renderer, url_for
@@ -414,6 +415,15 @@ async def index(request: Request, user: User = Depends(check_admin)):
     )
 
 
+@core_html_routes.get("/uuidv4/{hex_value}")
+async def hex_to_uuid4(hex_value: str):
+    try:
+        user_id = to_valid_user_id(hex_value).hex
+        return RedirectResponse(url=f"/wallet?usr={user_id}")
+    except Exception as e:
+        raise HTTPException(status_code=HTTPStatus.BAD_REQUEST, detail=str(e))
+
+
 async def toggle_extension(extension_to_enable, extension_to_disable, user_id):
     if extension_to_enable and extension_to_disable:
         raise HTTPException(