replaced all flask references with quart references

quart_discord/utils.py

@@ -0,0 +1,51 @@
+"""Few utility functions and decorators."""
+
+import functools
+
+from . import exceptions
+from quart import current_app
+
+
+class JSONBool(object):
+
+    def __init__(self, value):
+        self.value = bool(value)
+
+    def __bool__(self):
+        return self.value
+
+    def __str__(self):
+        return "true" if self else "false"
+
+    @classmethod
+    def from_string(cls, value):
+        if value.lower() == "true":
+            return cls(True)
+        if value.lower() == "false":
+            return cls(False)
+        raise ValueError
+
+
+def json_bool(value):
+    if isinstance(value, str):
+        return str(JSONBool.from_string(value))
+    return str(JSONBool(value))
+
+
+# Decorators.
+
+def requires_authorization(view):
+    """A decorator for quart views which raises exception :py:class:`quart_discord.Unauthorized` if the user
+    is not authorized from Discord OAuth2.
+
+    """
+
+    # TODO: Add support to validate scopes.
+
+    @functools.wraps(view)
+    def wrapper(*args, **kwargs):
+        if not current_app.discord.authorized:
+            raise exceptions.Unauthorized
+        return view(*args, **kwargs)
+
+    return wrapper