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// Copyright 2014 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 COMPONENTS_GCM_DRIVER_GCM_CHANNEL_STATUS_REQUEST_H_
#define COMPONENTS_GCM_DRIVER_GCM_CHANNEL_STATUS_REQUEST_H_
#include <memory>
#include "base/callback.h"
#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "net/base/backoff_entry.h"
#include "net/url_request/url_fetcher_delegate.h"
#include "net/url_request/url_request_context_getter.h"
namespace net {
class URLRequestContextGetter;
}
namespace gcm {
// Defines the request to talk with the server to determine if the GCM support
// should be enabled.
class GCMChannelStatusRequest : public net::URLFetcherDelegate {
public:
// Callback completing the channel status request.
// |update_received|: use the existing values if it is false which means no
// update is received.
// |enabled|: indicates if GCM is enabled (allowed to run) or not.
// |poll_interval_seconds|: the interval in seconds to start next poll
// request.
typedef base::Callback<void(bool update_received,
bool enabled,
int poll_interval_seconds)>
GCMChannelStatusRequestCallback;
GCMChannelStatusRequest(
const scoped_refptr<net::URLRequestContextGetter>& request_context_getter,
const std::string& channel_status_request_url,
const std::string& user_agent,
const GCMChannelStatusRequestCallback& callback);
~GCMChannelStatusRequest() override;
void Start();
static int default_poll_interval_seconds();
static int min_poll_interval_seconds();
private:
FRIEND_TEST_ALL_PREFIXES(GCMChannelStatusRequestTest, RequestData);
// Overridden from URLFetcherDelegate:
void OnURLFetchComplete(const net::URLFetcher* source) override;
bool ParseResponse(const net::URLFetcher* source);
void RetryWithBackoff(bool update_backoff);
scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
const std::string channel_status_request_url_;
const std::string user_agent_;
GCMChannelStatusRequestCallback callback_;
std::unique_ptr<net::URLFetcher> url_fetcher_;
net::BackoffEntry backoff_entry_;
base::WeakPtrFactory<GCMChannelStatusRequest> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(GCMChannelStatusRequest);
};
} // namespace gcm
#endif // COMPONENTS_GCM_DRIVER_GCM_CHANNEL_STATUS_REQUEST_H_
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