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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 REMOTING_HOST_OAUTH_TOKEN_GETTER_IMPL_H_
#define REMOTING_HOST_OAUTH_TOKEN_GETTER_IMPL_H_
#include <queue>
#include "base/callback.h"
#include "base/threading/non_thread_safe.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "google_apis/gaia/gaia_oauth_client.h"
#include "remoting/host/oauth_token_getter.h"
namespace net {
class URLRequestContextGetter;
} // namespace net
namespace remoting {
// OAuthTokenGetter caches OAuth access tokens and refreshes them as needed.
class OAuthTokenGetterImpl : public OAuthTokenGetter,
public base::NonThreadSafe,
public gaia::GaiaOAuthClient::Delegate {
public:
OAuthTokenGetterImpl(std::unique_ptr<OAuthCredentials> oauth_credentials,
const scoped_refptr<net::URLRequestContextGetter>&
url_request_context_getter,
bool auto_refresh);
~OAuthTokenGetterImpl() override;
// OAuthTokenGetter interface.
void CallWithToken(
const OAuthTokenGetter::TokenCallback& on_access_token) override;
void InvalidateCache() override;
private:
// gaia::GaiaOAuthClient::Delegate interface.
void OnGetTokensResponse(const std::string& user_email,
const std::string& access_token,
int expires_seconds) override;
void OnRefreshTokenResponse(const std::string& access_token,
int expires_in_seconds) override;
void OnGetUserEmailResponse(const std::string& user_email) override;
void OnOAuthError() override;
void OnNetworkError(int response_code) override;
void NotifyCallbacks(Status status,
const std::string& user_email,
const std::string& access_token);
void RefreshOAuthToken();
std::unique_ptr<OAuthCredentials> oauth_credentials_;
std::unique_ptr<gaia::GaiaOAuthClient> gaia_oauth_client_;
scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
bool refreshing_oauth_token_ = false;
bool email_verified_ = false;
std::string oauth_access_token_;
base::Time auth_token_expiry_time_;
std::queue<OAuthTokenGetter::TokenCallback> pending_callbacks_;
std::unique_ptr<base::OneShotTimer> refresh_timer_;
};
} // namespace remoting
#endif // REMOTING_HOST_OAUTH_TOKEN_GETTER_IMPL_H_
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