blob: 10ae8e011b94628dc973714ccdb007674136f9e1 [file] [log] [blame]
// 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.
#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/public/interfaces/geoposition.mojom.h"
#include "device/geolocation/wifi_data_provider.h"
#include "net/url_request/url_fetcher_delegate.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 {
// 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&
bool is_request_pending() const { return url_fetcher_ != NULL; }
// 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_;
} // namespace device