using System.IO;

namespace ES3Internal
{
	public class UnbufferedCryptoStream : MemoryStream
	{
		private readonly Stream stream;

		private readonly bool isReadStream;

		private string password;

		private int bufferSize;

		private EncryptionAlgorithm alg;

		private bool disposed;

		public UnbufferedCryptoStream(Stream stream, bool isReadStream, string password, int bufferSize, EncryptionAlgorithm alg)
		{
			this.stream = stream;
			this.isReadStream = isReadStream;
			this.password = password;
			this.bufferSize = bufferSize;
			this.alg = alg;
			if (isReadStream)
			{
				alg.Decrypt(stream, this, password, bufferSize);
			}
		}

		protected override void Dispose(bool disposing)
		{
			if (!disposed)
			{
				disposed = true;
				if (!isReadStream)
				{
					alg.Encrypt(this, stream, password, bufferSize);
				}
				stream.Dispose();
				base.Dispose(disposing);
			}
		}
	}
}