added rawurl pseudo query argument to /login

app.py

@@ -39,6 +39,10 @@ def create_app(test_config=None):
 		client = get_oauth()
 		url, state = client.authorization_url(app.config['OAUTH2_AUTH_URL'])
 		session['state'] = state
+		parts = request.full_path.split('?rawurl=', 1)
+		if len(parts) == 2:
+			session['url'] = parts[1]
+		else:
 			session['url'] = request.values.get('url', '/')
 		return redirect(url)