migrate from flask to quart.

also remove all flaskiness from static file serving.
and reference all vendored scripts on the base tempĺate for simplicity.

lnbits/decorators.py

@@ -1,5 +1,5 @@
 from cerberus import Validator  # type: ignore
-from flask import g, abort, jsonify, request
+from quart import g, abort, jsonify, request
 from functools import wraps
 from http import HTTPStatus
 from typing import List, Union
@@ -12,7 +12,7 @@ from lnbits.settings import LNBITS_ALLOWED_USERS
 def api_check_wallet_key(key_type: str = "invoice"):
     def wrap(view):
         @wraps(view)
-        def wrapped_view(**kwargs):
+        async def wrapped_view(**kwargs):
             try:
                 g.wallet = get_wallet_for_key(request.headers["X-Api-Key"], key_type)
             except KeyError:
@@ -24,7 +24,7 @@ def api_check_wallet_key(key_type: str = "invoice"):
             if not g.wallet:
                 return jsonify({"message": "Wrong keys."}), HTTPStatus.UNAUTHORIZED
 
-            return view(**kwargs)
+            return await view(**kwargs)
 
         return wrapped_view
 
@@ -34,7 +34,7 @@ def api_check_wallet_key(key_type: str = "invoice"):
 def api_validate_post_request(*, schema: dict):
     def wrap(view):
         @wraps(view)
-        def wrapped_view(**kwargs):
+        async def wrapped_view(**kwargs):
             if "application/json" not in request.headers["Content-Type"]:
                 return (
                     jsonify({"message": "Content-Type must be `application/json`."}),
@@ -42,7 +42,8 @@ def api_validate_post_request(*, schema: dict):
                 )
 
             v = Validator(schema)
-            g.data = {key: request.json[key] for key in schema.keys() if key in request.json}
+            data = await request.get_json()
+            g.data = {key: data[key] for key in schema.keys() if key in data}
 
             if not v.validate(g.data):
                 return (
@@ -50,7 +51,7 @@ def api_validate_post_request(*, schema: dict):
                     HTTPStatus.BAD_REQUEST,
                 )
 
-            return view(**kwargs)
+            return await view(**kwargs)
 
         return wrapped_view
 
@@ -60,13 +61,13 @@ def api_validate_post_request(*, schema: dict):
 def check_user_exists(param: str = "usr"):
     def wrap(view):
         @wraps(view)
-        def wrapped_view(**kwargs):
+        async def wrapped_view(**kwargs):
             g.user = get_user(request.args.get(param, type=str)) or abort(HTTPStatus.NOT_FOUND, "User  does not exist.")
 
             if LNBITS_ALLOWED_USERS and g.user.id not in LNBITS_ALLOWED_USERS:
                 abort(HTTPStatus.UNAUTHORIZED, "User not authorized.")
 
-            return view(**kwargs)
+            return await view(**kwargs)
 
         return wrapped_view
 
@@ -76,7 +77,7 @@ def check_user_exists(param: str = "usr"):
 def validate_uuids(params: List[str], *, required: Union[bool, List[str]] = False, version: int = 4):
     def wrap(view):
         @wraps(view)
-        def wrapped_view(**kwargs):
+        async def wrapped_view(**kwargs):
             query_params = {param: request.args.get(param, type=str) for param in params}
 
             for param, value in query_params.items():
@@ -89,7 +90,7 @@ def validate_uuids(params: List[str], *, required: Union[bool, List[str]] = Fals
                     except ValueError:
                         abort(HTTPStatus.BAD_REQUEST, f"`{param}` is not a valid UUID.")
 
-            return view(**kwargs)
+            return await view(**kwargs)
 
         return wrapped_view