Exemple #1
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.PerUserCacheList.FirstOrDefault(c => c.WebUserUniqueId == User);
            }
            else // retrieve last write from the DB
            {
                var status = from e in db.PerUserCacheList
                             where (e.WebUserUniqueId == User)
                             select new {
                    LastWrite = e.LastWrite
                };
                // if the in-memory copy is older than the persistent copy
                if (status.First().LastWrite > Cache.LastWrite)
                //// read from from storage, update in-memory copy
                {
                    Cache = db.PerUserCacheList.FirstOrDefault(c => c.WebUserUniqueId == User);
                }
            }


            this.Deserialize((Cache == null) ? null : Cache.CacheBits);
        }
Exemple #2
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)
            {
                //for a first time person, cache is null.
                if (Cache == null)
                {
                    //created a new object
                    Cache = new PerUserWebCache
                    {
                        WebUserUniqueId = User,
                        CacheBits       = this.Serialize(),
                        LastWrite       = DateTime.Now
                    };

                    //add it to the DbContext
                    db.PerUserCacheList.Add(Cache);
                }
                else
                {
                    //update the CacheBits and LastWrite on the existing cache object.
                    Cache.CacheBits       = this.Serialize();
                    Cache.LastWrite       = DateTime.Now;
                    db.Entry(Cache).State = EntityState.Modified;
                }

                //update the database
                db.SaveChanges();

                //reset the flag
                this.HasStateChanged = false;
            }
        }
Exemple #3
0
        // constructor
        public EfAdalTokenCache(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.PerUserCacheList.FirstOrDefault(c => c.WebUserUniqueId == User);
            // place the entry in memory
            this.Deserialize((Cache == null) ? null : Cache.CacheBits);
        }