Place examples in the right place

examples/dict_auth.py

@@ -0,0 +1,21 @@
+import asyncio
+
+from aiohttp_security.authorization import AbstractAuthorizationPolicy
+
+
+class DictionaryAuthorizationPolicy(AbstractAuthorizationPolicy):
+    def __init__(self, data):
+        self.data = data
+
+    @asyncio.coroutine
+    def permits(self, identity, permission, context=None):
+        record = self.data.get(identity)
+        if record is not None:
+            # TODO: implement actual permission checker
+            if permission in record:
+                return True
+        return False
+
+    @asyncio.coroutine
+    def authorized_user_id(self, identity):
+        return identity if identity in self.data else None