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// Copyright (c) 2013 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_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_SERVICE_H_
#define CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_SERVICE_H_
#include <map>
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/time.h"
#include "chrome/browser/profiles/profile_keyed_service.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
namespace content {
class NotificationSource;
}
class Profile;
namespace extensions {
// This class caches tokens for the current user. It will clear tokens out
// when the user logs out or after the specified timeout interval, or when
// the instance of chrome shuts down.
class TokenCacheService : public ProfileKeyedService,
public content::NotificationObserver {
public:
explicit TokenCacheService(Profile* profile);
virtual ~TokenCacheService();
// Store a token for the currently logged in user. We will look it up later by
// the name given here, and we will expire the token after the timeout. For a
// timeout of 0, we never expire the token. After time_to_live expires, the
// token will be expired.
void StoreToken(const std::string& token_name, const std::string& token_value,
base::TimeDelta time_to_live);
// Retrieve a token for the currently logged in user. This returns an empty
// string if the token was not found or timed out.
std::string RetrieveToken(const std::string& token_name);
// Inherited from NotificationObserver.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
private:
friend class TokenCacheTest;
struct TokenCacheData {
std::string token;
base::Time expiration_time;
};
// Map the token name (string) to token data.
std::map<std::string, TokenCacheData> token_cache_;
content::NotificationRegistrar registrar_;
const Profile* const profile_;
DISALLOW_COPY_AND_ASSIGN(TokenCacheService);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_SERVICE_H_
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