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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_BASE_GAIA_OAUTH_CLIENT_H_
#define REMOTING_BASE_GAIA_OAUTH_CLIENT_H_
#include "base/containers/queue.h"
#include "base/memory/scoped_refptr.h"
#include "google_apis/gaia/gaia_oauth_client.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "remoting/base/oauth_client.h"
namespace remoting {
// A wrapper around gaia::GaiaOAuthClient that provides a more
// convenient interface, with queueing of requests and a callback
// rather than a delegate.
class GaiaOAuthClient : public OAuthClient,
public gaia::GaiaOAuthClient::Delegate {
public:
GaiaOAuthClient(
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory);
GaiaOAuthClient(const GaiaOAuthClient&) = delete;
GaiaOAuthClient& operator=(const GaiaOAuthClient&) = delete;
~GaiaOAuthClient() override;
// Redeems |auth_code| using |oauth_client_info| to obtain |refresh_token| and
// |access_token|, then uses the userinfo endpoint to obtain |user_email|.
// Calls CompletionCallback with |user_email| and |refresh_token| when done,
// or with empty strings on error.
// If a request is received while another one is being processed, it is
// enqueued and processed after the first one is finished.
void GetCredentialsFromAuthCode(
const gaia::OAuthClientInfo& oauth_client_info,
const std::string& auth_code,
bool need_user_email,
CompletionCallback on_done) override;
// gaia::GaiaOAuthClient::Delegate
void OnGetTokensResponse(const std::string& refresh_token,
const std::string& access_token,
int expires_in_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;
private:
struct Request {
Request(const gaia::OAuthClientInfo& oauth_client_info,
const std::string& auth_code,
bool need_user_email,
CompletionCallback on_done);
Request(Request&& other);
Request& operator=(Request&& other);
virtual ~Request();
gaia::OAuthClientInfo oauth_client_info;
std::string auth_code;
bool need_user_email;
CompletionCallback on_done;
};
void SendResponse(const std::string& user_email,
const std::string& refresh_token);
base::queue<Request> pending_requests_;
gaia::GaiaOAuthClient gaia_oauth_client_;
std::string refresh_token_;
bool need_user_email_;
CompletionCallback on_done_;
};
} // namespace remoting
#endif // REMOTING_BASE_GAIA_OAUTH_CLIENT_H_
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