components/proximity_auth/cryptauth/cryptauth_access_token_fetcher_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_PROXIMITY_AUTH_CRYPTAUTH_ACCESS_TOKEN_FETCHER_IMPL_H
   6 #define COMPONENTS_PROXIMITY_AUTH_CRYPTAUTH_ACCESS_TOKEN_FETCHER_IMPL_H
   7
   8 #include "base/callback.h"
   9 #include "components/proximity_auth/cryptauth/cryptauth_access_token_fetcher.h"
  10 #include "google_apis/gaia/oauth2_token_service.h"
  11
  12 namespace proximity_auth {
  13
  14 // Implementation of CryptAuthAccessTokenFetcher fetching an access token for a
  15 // given account using the provided OAuth2TokenService.
  16 class CryptAuthAccessTokenFetcherImpl : public CryptAuthAccessTokenFetcher,
  17                                         public OAuth2TokenService::Consumer {
  18  public:
  19   // |token_service| is not owned, and must outlive this object.
  20   CryptAuthAccessTokenFetcherImpl(OAuth2TokenService* token_service,
  21                                   const std::string& account_id);
  22   ~CryptAuthAccessTokenFetcherImpl() override;
  23
  24   // CryptAuthAccessTokenFetcher:
  25   void FetchAccessToken(const AccessTokenCallback& callback) override;
  26
  27  private:
  28   // OAuth2TokenService::Consumer:
  29   void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
  30                          const std::string& access_token,
  31                          const base::Time& expiration_time) override;
  32   void OnGetTokenFailure(const OAuth2TokenService::Request* request,
  33                          const GoogleServiceAuthError& error) override;
  34
  35   // System service that caches and fetches tokens for a given account.
  36   // Not owned.
  37   OAuth2TokenService* token_service_;
  38
  39   // The account id for whom to mint the token.
  40   std::string account_id_;
  41
  42   // True if FetchAccessToken() has been called.
  43   bool fetch_started_;
  44
  45   // Stores the request from |token_service_| to mint the token.
  46   scoped_ptr<OAuth2TokenService::Request> token_request_;
  47
  48   // Callback to invoke when the token fetch succeeds or fails.
  49   AccessTokenCallback callback_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(CryptAuthAccessTokenFetcherImpl);
  52 };
  53
  54 }  // namespace proximity_auth
  55
  56 #endif  // COMPONENTS_PROXIMITY_AUTH_CRYPTAUTH_ACCESS_TOKEN_FETCHER_IMPL_H