// clean up the DB
public override void Clear()
{
base.Clear();
IEnumerable <PerWebUserCache> entries = null;
var task = Task.Run(async() => {
entries = await PerWebUserCache.GetAllEntries();
});
task.Wait();
foreach (var cacheEntry in entries)
{
PerWebUserCache.RemoveEntry(cacheEntry).Wait();
}
}
// constructor
public AdalCosmosTokenCache(string userObjId, string hostName)
{
// associate the cache to the current user of the web app
_userObjId = userObjId;
_hostName = hostName;
this.AfterAccess = AfterAccessNotification;
this.BeforeAccess = BeforeAccessNotification;
this.BeforeWrite = BeforeWriteNotification;
// look up the entry in the DB
var task = Task.Run(async() => {
Cache = await PerWebUserCache.GetCache(new CacheUser(_userObjId, _hostName));
});
task.Wait();
try
{
// place the entry in memory
this.Deserialize((Cache == null) ? null : B2BPortal.Common.Utils.Utils.Decrypt(new EncryptedObj(Cache.CacheBits, Cache.Salt)));
}
catch (CryptographicException)
{
//error decrypting from token cache - clearing the cached item (encryption key may have changed)
task = Task.Run(async() => {
await PerWebUserCache.RemoveEntry(Cache);
});
task.Wait();
this.Deserialize(null);
}
catch (Exception ex)
{
var newEx = new Exception("Error decrypting the cached token. ", ex);
throw newEx;
}
}