| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| import 'dart:convert' show json; |
| |
| import 'package:sync_http/sync_http.dart'; |
| import 'package:webdriver/sync_core.dart'; |
| |
| /// Inferred spec and sessionId from a session creation request. |
| class InferredResponse { |
| final String sessionId; |
| |
| final WebDriverSpec spec; |
| |
| InferredResponse(this.sessionId, this.spec); |
| } |
| |
| /// Infers the spec during session creation. |
| dynamic inferSessionResponseSpec(SyncHttpClientResponse response, bool _) { |
| Map responseBody; |
| try { |
| responseBody = json.decode(response.body); |
| } catch (e) {} |
| |
| // TODO(staats): create more description error messages. |
| if (response.statusCode < 200 || response.statusCode > 299) { |
| throw 'Response code: ${response.statusCode}'; |
| } |
| |
| // JSON responses have multiple keys. |
| if (responseBody.keys.length > 1) { |
| return new InferredResponse( |
| responseBody['sessionId'], WebDriverSpec.JsonWire); |
| // W3C responses have only one key, value. |
| } else if (responseBody.keys.length == 1) { |
| return new InferredResponse( |
| responseBody['value']['sessionId'], WebDriverSpec.W3c); |
| } |
| throw 'Could not infer spec type; number of keys: ${responseBody.keys}'; |
| } |