| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef DEVICE_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_ |
| #define DEVICE_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_ |
| |
| #include <memory> |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/strings/string16.h" |
| #include "device/geolocation/geolocation_export.h" |
| #include "device/geolocation/wifi_data_provider.h" |
| #include "net/url_request/url_fetcher_delegate.h" |
| #include "services/device/public/interfaces/geoposition.mojom.h" |
| #include "url/gurl.h" |
| |
| namespace net { |
| class URLFetcher; |
| class URLRequestContextGetter; |
| |
| struct PartialNetworkTrafficAnnotationTag; |
| } |
| |
| namespace device { |
| |
| // Takes wifi data and sends it to a server to get a position fix. |
| // It performs formatting of the request and interpretation of the response. |
| class DEVICE_GEOLOCATION_EXPORT NetworkLocationRequest |
| : private net::URLFetcherDelegate { |
| public: |
| // ID passed to URLFetcher::Create(). Used for testing. |
| static int url_fetcher_id_for_tests; |
| |
| // Called when a new geo position is available. The second argument indicates |
| // whether there was a server error or not. It is true when there was a |
| // server or network error - either no response or a 500 error code. |
| using LocationResponseCallback = |
| base::Callback<void(const mojom::Geoposition& /* position */, |
| bool /* server_error */, |
| const WifiData& /* wifi_data */)>; |
| |
| NetworkLocationRequest(scoped_refptr<net::URLRequestContextGetter> context, |
| const std::string& api_key, |
| LocationResponseCallback callback); |
| ~NetworkLocationRequest() override; |
| |
| // Makes a new request using the specified |wifi_data|. Returns true if the |
| // new request was successfully started. In all cases, any currently pending |
| // request will be canceled. The specified |wifi_data| and |wifi_timestamp| |
| // are passed back to the client upon completion, via |
| // LocationResponseCallback's |wifi_data| and |position.timestamp| |
| // respectively. |
| bool MakeRequest(const WifiData& wifi_data, |
| const base::Time& wifi_timestamp, |
| const net::PartialNetworkTrafficAnnotationTag& |
| partial_traffic_annotation); |
| |
| bool is_request_pending() const { return url_fetcher_ != NULL; } |
| |
| private: |
| // net::URLFetcherDelegate |
| void OnURLFetchComplete(const net::URLFetcher* source) override; |
| |
| const scoped_refptr<net::URLRequestContextGetter> url_context_; |
| const std::string api_key_; |
| const LocationResponseCallback location_response_callback_; |
| std::unique_ptr<net::URLFetcher> url_fetcher_; |
| |
| // Keep a copy of the data sent in the request, so we can refer back to it |
| // when the response arrives. |
| WifiData wifi_data_; |
| base::Time wifi_timestamp_; |
| |
| // The start time for the request. |
| base::TimeTicks request_start_time_; |
| |
| DISALLOW_COPY_AND_ASSIGN(NetworkLocationRequest); |
| }; |
| |
| } // namespace device |
| |
| #endif // DEVICE_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_ |