/// <summary>
/// LoadFromCache method implementation
/// </summary>
private static SIDsParametersRecord LoadFromCache()
{
SIDsParametersRecord config = null;
if (!File.Exists(SystemUtilities.SystemCacheFile))
{
return(null);
}
DataContractSerializer serializer = new DataContractSerializer(typeof(SIDsParametersRecord));
using (FileStream fs = new FileStream(SystemUtilities.SystemCacheFile, FileMode.Open, FileAccess.Read))
{
byte[] bytes = new byte[fs.Length];
int n = fs.Read(bytes, 0, (int)fs.Length);
fs.Close();
byte[] byt = null;
using (AESSystemEncryption aes = new AESSystemEncryption())
{
byt = aes.Decrypt(bytes);
}
using (MemoryStream ms = new MemoryStream(byt))
{
using (StreamReader reader = new StreamReader(ms))
{
config = (SIDsParametersRecord)serializer.ReadObject(ms);
}
}
}
return(config);
}
/// <summary>
/// WriteMessage method override
/// </summary>
public override void WriteMessage(Message message, Stream stream)
{
byte[] cryptedBytes = new byte[stream.Length];
stream.Read(cryptedBytes, 0, (int)stream.Length);
byte[] unencryptedBytes = null;
using (AESSystemEncryption aes = new AESSystemEncryption())
{
unencryptedBytes = aes.Decrypt(cryptedBytes);
}
MemoryStream stm = new MemoryStream(unencryptedBytes);
innerEncoder.WriteMessage(message, stm);
stream.Flush();
}
/// <summary>
/// DecryptBuffer method implementation (decompress)
/// </summary>
private ArraySegment <byte> DecryptBuffer(ArraySegment <byte> buffer, BufferManager bufferManager)
{
byte[] cryptedBytes = new byte[buffer.Count];
Array.Copy(buffer.Array, buffer.Offset, cryptedBytes, 0, cryptedBytes.Length);
byte[] unencryptedBytes = null;
using (AESSystemEncryption aes = new AESSystemEncryption())
{
unencryptedBytes = aes.Decrypt(cryptedBytes);
}
int totalLength = unencryptedBytes.Length + buffer.Offset;
byte[] bufferManagerBuffer = bufferManager.TakeBuffer(totalLength);
Array.Clear(bufferManagerBuffer, 0, bufferManagerBuffer.Length);
Array.Copy(buffer.Array, 0, bufferManagerBuffer, 0, buffer.Offset);
Array.Copy(unencryptedBytes, 0, bufferManagerBuffer, buffer.Offset, unencryptedBytes.Length);
ArraySegment <byte> byteArray = new ArraySegment <byte>(bufferManagerBuffer, buffer.Offset, unencryptedBytes.Length);
bufferManager.ReturnBuffer(buffer.Array);
return(byteArray);
}
