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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.
#include "chrome/browser/extensions/token_cache/token_cache_service.h"
#include "base/logging.h"
#include "chrome/browser/chrome_notification_types.h"
#include "content/public/browser/notification_source.h"
using base::Time;
using base::TimeDelta;
namespace extensions {
TokenCacheService::TokenCacheService(Profile* profile) : profile_(profile) {
registrar_.Add(this,
chrome::NOTIFICATION_GOOGLE_SIGNED_OUT,
content::Source<Profile>(profile_));
}
TokenCacheService::~TokenCacheService() {
}
void TokenCacheService::StoreToken(const std::string& token_name,
const std::string& token_value,
base::TimeDelta time_to_live) {
TokenCacheData token_data;
// Get the current time, and make sure that the token has not already expired.
Time expiration_time;
TimeDelta zero_delta;
// Negative time deltas are meaningless to this function.
DCHECK(time_to_live >= zero_delta);
if (zero_delta < time_to_live) {
expiration_time = Time::Now();
expiration_time += time_to_live;
}
token_data.token = token_value;
token_data.expiration_time = expiration_time;
// Add the token to our cache, overwriting any existing token with this name.
token_cache_[token_name] = token_data;
}
// 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 TokenCacheService::RetrieveToken(const std::string& token_name) {
std::map<std::string, TokenCacheData>::iterator it =
token_cache_.find(token_name);
if (it != token_cache_.end()) {
Time now = Time::Now();
if (it->second.expiration_time.is_null() ||
now < it->second.expiration_time) {
return it->second.token;
} else {
// Remove this entry if it is expired.
token_cache_.erase(it);
return std::string();
}
}
return std::string();
}
// Inherited from NotificationObserver.
void TokenCacheService::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK(chrome::NOTIFICATION_GOOGLE_SIGNED_OUT == type);
token_cache_.clear();
}
} // namespace extensions
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