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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.
#include <string>
#include "base/callback.h"
#include "base/macros.h"
namespace remoting {
// OAuthTokenGetter caches OAuth access tokens and refreshes them as needed.
class OAuthTokenGetter {
// Status of the refresh token attempt.
enum Status {
// Success, credentials in user_email/access_token.
// Network failure (caller may retry).
// Authentication failure (permanent).
typedef base::Callback<void(Status status,
const std::string& user_email,
const std::string& access_token)> TokenCallback;
// This structure contains information required to perform
// authentication to OAuth2.
struct OAuthCredentials {
// |is_service_account| should be True if the OAuth refresh token is for a
// service account, False for a user account, to allow the correct client-ID
// to be used.
OAuthCredentials(const std::string& login,
const std::string& refresh_token,
bool is_service_account);
// The user's account name (i.e. their email address).
std::string login;
// Token delegating authority to us to act as the user.
std::string refresh_token;
// Whether these credentials belong to a service account.
bool is_service_account;
OAuthTokenGetter() {}
virtual ~OAuthTokenGetter() {}
// Call |on_access_token| with an access token, or the failure status.
virtual void CallWithToken(
const OAuthTokenGetter::TokenCallback& on_access_token) = 0;
// Invalidates the cache, so the next CallWithToken() will get a fresh access
// token.
virtual void InvalidateCache() = 0;
} // namespace remoting