Example #1
0
        // 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 = db.PerUserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == User);
            // place the entry in memory
            this.Deserialize((Cache == null) ? null : Cache.cacheBits);
        }
Example #2
0
 // 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 = db.PerUserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == User);
     }
     else
     {   // retrieve last write from the DB
         var status = from e in db.PerUserTokenCacheList
                      where (e.webUserUniqueId == 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 = db.PerUserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == User);
         }
     }
     this.Deserialize((Cache == null) ? null : Cache.cacheBits);
 }
Example #3
0
        // 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 = db.PerUserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == User);
                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
                db.Entry(Cache).State = Cache.Id == 0 ? EntityState.Added : EntityState.Modified;
                db.SaveChanges();
                this.HasStateChanged = false;
            }
        }