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// Copyright 2015 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_SYNC_DRIVER_SYNC_STOPPED_REPORTER_H_
#define COMPONENTS_SYNC_DRIVER_SYNC_STOPPED_REPORTER_H_
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/macros.h"
#include "base/timer/timer.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_fetcher_delegate.h"
#include "net/url_request/url_request_context_getter.h"
#include "url/gurl.h"
namespace syncer {
// Manages informing the sync server that sync has been disabled.
// An implementation of URLFetcherDelegate was needed in order to
// clean up the fetcher_ pointer when the request completes.
class SyncStoppedReporter : public net::URLFetcherDelegate {
public:
enum Result { RESULT_SUCCESS, RESULT_ERROR, RESULT_TIMEOUT };
typedef base::Callback<void(const Result&)> ResultCallback;
SyncStoppedReporter(
const GURL& sync_service_url,
const std::string& user_agent,
const scoped_refptr<net::URLRequestContextGetter>& request_context,
const ResultCallback& callback);
~SyncStoppedReporter() override;
// Inform the sync server that sync was stopped on this device.
// |access_token|, |cache_guid|, and |birthday| must not be empty.
void ReportSyncStopped(const std::string& access_token,
const std::string& cache_guid,
const std::string& birthday);
// net::URLFetcherDelegate implementation.
void OnURLFetchComplete(const net::URLFetcher* source) override;
// Override the timer's task runner so it can be triggered in tests.
void SetTimerTaskRunnerForTest(
const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
private:
// Convert the base sync URL into the sync event URL.
static GURL GetSyncEventURL(const GURL& sync_service_url);
// Callback for a request timing out.
void OnTimeout();
// Handles timing out requests.
base::OneShotTimer timer_;
// The URL for the sync server's event RPC.
const GURL sync_event_url_;
// The user agent for the browser.
const std::string user_agent_;
// Stored to simplify the API; needed for URLFetcher::Create().
scoped_refptr<net::URLRequestContextGetter> request_context_;
// The current URLFetcher. Null unless a request is in progress.
std::unique_ptr<net::URLFetcher> fetcher_;
// A callback for request completion or timeout.
ResultCallback callback_;
DISALLOW_COPY_AND_ASSIGN(SyncStoppedReporter);
};
} // namespace syncer
#endif // COMPONENTS_SYNC_DRIVER_SYNC_STOPPED_REPORTER_H_
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