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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_SIGNIN_CORE_BROWSER_PROFILE_OAUTH2_TOKEN_SERVICE_H_
#define COMPONENTS_SIGNIN_CORE_BROWSER_PROFILE_OAUTH2_TOKEN_SERVICE_H_
#include <string>
#include "base/macros.h"
#include "base/memory/linked_ptr.h"
#include "components/keyed_service/core/keyed_service.h"
#include "google_apis/gaia/oauth2_token_service.h"
#include "google_apis/gaia/oauth2_token_service_delegate.h"
#include "net/base/backoff_entry.h"
// ProfileOAuth2TokenService is a KeyedService that retrieves
// OAuth2 access tokens for a given set of scopes using the OAuth2 login
// refresh tokens.
//
// See |OAuth2TokenService| for usage details.
//
// Note: after StartRequest returns, in-flight requests will continue
// even if the TokenService refresh token that was used to initiate
// the request changes or is cleared. When the request completes,
// Consumer::OnGetTokenSuccess will be invoked, but the access token
// won't be cached.
//
// Note: requests should be started from the UI thread. To start a
// request from other thread, please use OAuth2TokenServiceRequest.
class ProfileOAuth2TokenService : public OAuth2TokenService,
public OAuth2TokenService::Observer,
public KeyedService {
public:
ProfileOAuth2TokenService(
std::unique_ptr<OAuth2TokenServiceDelegate> delegate);
~ProfileOAuth2TokenService() override;
// KeyedService implementation.
void Shutdown() override;
// Loads credentials from a backing persistent store to make them available
// after service is used between profile restarts.
//
// Only call this method if there is at least one account connected to the
// profile, otherwise startup will cause unneeded work on the IO thread. The
// primary account is specified with the |primary_account_id| argument. If
// empty, no credentials will be loaded. For a regular profile, the primary
// account id comes from SigninManager. For a supervised user, the id comes
// from SupervisedUserService.
virtual void LoadCredentials(const std::string& primary_account_id);
// Updates a |refresh_token| for an |account_id|. Credentials are persisted,
// and available through |LoadCredentials| after service is restarted.
virtual void UpdateCredentials(const std::string& account_id,
const std::string& refresh_token);
virtual void RevokeCredentials(const std::string& account_id);
// Returns a pointer to its instance of net::BackoffEntry or nullptr if there
// is no such instance.
const net::BackoffEntry* GetDelegateBackoffEntry();
private:
void OnRefreshTokenAvailable(const std::string& account_id) override;
void OnRefreshTokenRevoked(const std::string& account_id) override;
DISALLOW_COPY_AND_ASSIGN(ProfileOAuth2TokenService);
};
#endif // COMPONENTS_SIGNIN_CORE_BROWSER_PROFILE_OAUTH2_TOKEN_SERVICE_H_
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