Add /me API endpoint

src/pretix/api/views/user.py

@@ -0,0 +1,16 @@
+from oauth2_provider.contrib.rest_framework import OAuth2Authentication
+from rest_framework.authentication import SessionAuthentication
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+
+class MeView(APIView):
+    authentication_classes = (SessionAuthentication, OAuth2Authentication)
+
+    def get(self, request, format=None):
+        return Response({
+            'email': request.user.email,
+            'fullname': request.user.fullname,
+            'locale': request.user.locale,
+            'timezone': request.user.timezone
+        })