access_token_store.h revision 7dbb3d5cf0c15f500944d211057644d6a2f37371
1// Copyright (c) 2012 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// Defines the Geolocation access token store, and associated factory function. 6// An access token store is responsible for providing the API to persist 7// access tokens, one at a time, and to load them back on mass. 8// The API is a little more complex than one might wish, due to the need for 9// prefs access to happen asynchronously on the UI thread. 10// This API is provided as abstract base classes to allow mocking and testing 11// of clients, without dependency on browser process singleton objects etc. 12 13#ifndef CONTENT_PUBLIC_BROWSER_ACCESS_TOKEN_STORE_H_ 14#define CONTENT_PUBLIC_BROWSER_ACCESS_TOKEN_STORE_H_ 15 16#include <map> 17 18#include "base/callback.h" 19#include "base/memory/ref_counted.h" 20#include "base/strings/string16.h" 21#include "content/common/content_export.h" 22#include "url/gurl.h" 23 24class GURL; 25 26namespace net { 27class URLRequestContextGetter; 28} 29 30namespace content { 31 32// Provides storage for the access token used in the network request. 33class AccessTokenStore : public base::RefCountedThreadSafe<AccessTokenStore> { 34 public: 35 // Map of server URLs to associated access token. 36 typedef std::map<GURL, string16> AccessTokenSet; 37 typedef base::Callback<void(AccessTokenSet, net::URLRequestContextGetter*)> 38 LoadAccessTokensCallbackType; 39 40 // |callback| will be invoked once per LoadAccessTokens call, after existing 41 // access tokens have been loaded from persistent store. As a convenience the 42 // URLRequestContextGetter is also supplied as an argument in |callback|, as 43 // in Chrome the call to obtain this must also be performed on the UI thread 44 // so it is efficient to piggyback it onto this request. 45 // Takes ownership of |callback|. 46 virtual void LoadAccessTokens( 47 const LoadAccessTokensCallbackType& callback) = 0; 48 49 virtual void SaveAccessToken( 50 const GURL& server_url, const string16& access_token) = 0; 51 52 protected: 53 friend class base::RefCountedThreadSafe<AccessTokenStore>; 54 CONTENT_EXPORT AccessTokenStore() {} 55 CONTENT_EXPORT virtual ~AccessTokenStore() {} 56}; 57 58} // namespace content 59 60#endif // CONTENT_PUBLIC_BROWSER_ACCESS_TOKEN_STORE_H_ 61