// Notification raised after ADAL accessed the cache. // If the HasStateChanged flag is set, ADAL changed the content of the cache void AfterAccessNotification(TokenCacheNotificationArgs args) { // if state changed if (this.HasStateChanged) { // check for an existing entry Cache = this.coreRepository.GetPerUserTokenCacheListById(User).FirstOrDefault(); if (Cache == null) { // if no existing entry for that user, create a new one Cache = new PerUserTokenCache { webUserUniqueId = User, }; } // update the cache contents and the last write timestamp Cache.cacheBits = this.Serialize(); Cache.LastWrite = DateTime.Now; // update the DB with modification or new entry this.coreRepository.SavePerUserTokenCaches(Cache); this.HasStateChanged = false; } }
// constructor public AdalTokenCache(string user) { // associate the cache to the current user of the web app User = user; this.AfterAccess = AfterAccessNotification; this.BeforeAccess = BeforeAccessNotification; this.BeforeWrite = BeforeWriteNotification; // look up the entry in the DB Cache = this.coreRepository.GetPerUserTokenCacheListById(User).FirstOrDefault(); // place the entry in memory this.Deserialize((Cache == null) ? null : Cache.cacheBits); }
// Notification raised before ADAL accesses the cache. // This is your chance to update the in-memory copy from the DB, if the in-memory version is stale void BeforeAccessNotification(TokenCacheNotificationArgs args) { if (Cache == null) { // first time access Cache = this.coreRepository.GetPerUserTokenCacheListById(User).FirstOrDefault(); } else { // retrieve last write from the DB var status = from e in this.coreRepository.GetPerUserTokenCacheListById(User) select new { LastWrite = e.LastWrite }; // if the in-memory copy is older than the persistent copy if (status.Count() > 0 && status.First().LastWrite > Cache.LastWrite) //// read from from storage, update in-memory copy { Cache = this.coreRepository.GetPerUserTokenCacheListById(User).FirstOrDefault(); } } this.Deserialize((Cache == null) ? null : Cache.cacheBits); }
internal void SavePerUserTokenCaches(PerUserTokenCache cache) { TableUtil.SaveCoreTableItemSync <PerUserTokenCache>(cache, Tables.PerUserTokenCache); }