chrome/browser/extensions/token_cache/token_cache_service.cc

   1 // Copyright (c) 2013 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 #include "chrome/browser/extensions/token_cache/token_cache_service.h"
   6
   7 #include "base/logging.h"
   8 #include "chrome/browser/signin/signin_manager_factory.h"
   9 #include "components/signin/core/browser/signin_manager.h"
  10
  11 using base::Time;
  12 using base::TimeDelta;
  13
  14 namespace extensions {
  15
  16 TokenCacheService::TokenCacheService(Profile* profile) : profile_(profile) {
  17   SigninManagerFactory::GetForProfile(profile)->AddObserver(this);
  18 }
  19
  20 TokenCacheService::~TokenCacheService() {
  21 }
  22
  23 void TokenCacheService::StoreToken(const std::string& token_name,
  24                                    const std::string& token_value,
  25                                    base::TimeDelta time_to_live) {
  26   TokenCacheData token_data;
  27
  28   // Get the current time, and make sure that the token has not already expired.
  29   Time expiration_time;
  30   TimeDelta zero_delta;
  31
  32   // Negative time deltas are meaningless to this function.
  33   DCHECK(time_to_live >= zero_delta);
  34
  35   if (zero_delta < time_to_live) {
  36     expiration_time = Time::Now();
  37     expiration_time += time_to_live;
  38   }
  39
  40   token_data.token = token_value;
  41   token_data.expiration_time = expiration_time;
  42
  43   // Add the token to our cache, overwriting any existing token with this name.
  44   token_cache_[token_name] = token_data;
  45 }
  46
  47 // Retrieve a token for the currently logged in user.  This returns an empty
  48 // string if the token was not found or timed out.
  49 std::string TokenCacheService::RetrieveToken(const std::string& token_name) {
  50   std::map<std::string, TokenCacheData>::iterator it =
  51       token_cache_.find(token_name);
  52
  53   if (it != token_cache_.end()) {
  54     Time now = Time::Now();
  55     if (it->second.expiration_time.is_null() ||
  56         now < it->second.expiration_time) {
  57       return it->second.token;
  58     } else {
  59       // Remove this entry if it is expired.
  60       token_cache_.erase(it);
  61       return std::string();
  62     }
  63   }
  64
  65   return std::string();
  66 }
  67
  68 void TokenCacheService::Shutdown() {
  69   SigninManagerFactory::GetForProfile(const_cast<Profile*>(profile_))
  70       ->RemoveObserver(this);
  71 }
  72
  73 void TokenCacheService::GoogleSignedOut(const std::string& account_id,
  74                                         const std::string& username) {
  75   token_cache_.clear();
  76 }
  77
  78 }  // namespace extensions