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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 CHROME_BROWSER_UI_APP_LIST_SPEECH_AUTH_HELPER_H_
#define CHROME_BROWSER_UI_APP_LIST_SPEECH_AUTH_HELPER_H_
#include <string>
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "components/signin/core/browser/profile_oauth2_token_service.h"
class Profile;
class ProfileOAuth2TokenService;
namespace base {
class Clock;
}
namespace app_list {
// SpeechAuthHelper is a helper class to generate oauth tokens for audio
// history. This encalsulates generating and refreshing the auth token for a
// given profile. All functions should be called on the UI thread.
class SpeechAuthHelper : public OAuth2TokenService::Consumer,
public OAuth2TokenService::Observer {
public:
explicit SpeechAuthHelper(Profile* profile, base::Clock* clock);
~SpeechAuthHelper() override;
// Returns the current auth token. If the auth service is not available, or
// there was a failure in obtaining a token, return the empty string.
std::string GetToken();
// Returns the OAuth scope associated with the auth token.
std::string GetScope();
private:
// Overridden from OAuth2TokenService::Consumer:
void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
const std::string& access_token,
const base::Time& expiration_time) override;
void OnGetTokenFailure(const OAuth2TokenService::Request* request,
const GoogleServiceAuthError& error) override;
// Overridden from OAuth2TokenService::Observer:
void OnRefreshTokenAvailable(const std::string& account_id) override;
void ScheduleTokenFetch(const base::TimeDelta& fetch_delay);
void FetchAuthToken();
Profile* profile_;
base::Clock* clock_;
ProfileOAuth2TokenService* token_service_;
std::string authenticated_account_id_;
std::string auth_token_;
scoped_ptr<OAuth2TokenService::Request> auth_token_request_;
base::WeakPtrFactory<SpeechAuthHelper> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(SpeechAuthHelper);
};
} // namespace app_list
#endif // CHROME_BROWSER_UI_APP_LIST_SPEECH_AUTH_HELPER_H_
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