/// <summary>
/// Removes the expired persisted grants.
/// </summary>
/// <returns></returns>
protected virtual async Task RemoveExpiredPersistedGrantsAsync(CancellationToken cancellationToken = default)
{
var found = Int32.MaxValue;
while (found >= _options.TokenCleanupBatchSize)
{
var expiredGrants = await _persistedGrantDbContext.PersistedGrants
.Where(x => x.Expiration < DateTime.UtcNow)
.OrderBy(x => x.Expiration)
.Take(_options.TokenCleanupBatchSize)
.ToArrayAsync(cancellationToken);
found = expiredGrants.Length;
if (found > 0)
{
_logger.LogInformation("Removing {grantCount} expired grants", found);
_persistedGrantDbContext.PersistedGrants.RemoveRange(expiredGrants);
var list = await _persistedGrantDbContext.SaveChangesWithConcurrencyCheckAsync <Entities.PersistedGrant>(_logger, cancellationToken);
expiredGrants = expiredGrants.Except(list).ToArray();
if (_operationalStoreNotification != null)
{
await _operationalStoreNotification.PersistedGrantsRemovedAsync(expiredGrants);
}
}
}
}
/// <inheritdoc/>
public async Task <IReadOnlyCollection <ServerSideSession> > GetAndRemoveExpiredSessionsAsync(int count, CancellationToken cancellationToken = default)
{
cancellationToken = cancellationToken == CancellationToken.None ? CancellationTokenProvider.CancellationToken : cancellationToken;
var entities = await Context.ServerSideSessions
.Where(x => x.Expires < DateTime.UtcNow)
.OrderBy(x => x.Id)
.Take(count)
.ToArrayAsync(cancellationToken);
if (entities.Length > 0)
{
Context.ServerSideSessions.RemoveRange(entities);
var list = await Context.SaveChangesWithConcurrencyCheckAsync <Entities.ServerSideSession>(Logger, cancellationToken);
entities = entities.Except(list).ToArray();
Logger.LogDebug("Found and removed {serverSideSessionCount} expired server-side sessions", entities.Length);
}
var results = entities.Select(entity => new ServerSideSession
{
Key = entity.Key,
Scheme = entity.Scheme,
SubjectId = entity.SubjectId,
SessionId = entity.SessionId,
DisplayName = entity.DisplayName,
Created = entity.Created,
Renewed = entity.Renewed,
Expires = entity.Expires,
Ticket = entity.Data,
}).ToArray();
return(results);
}