private byte[] GetCheckSum()
{
try
{
MyPrincipal mp = Thread.CurrentPrincipal as MyPrincipal;
if (mp.IsInRole("ModifyBlackList"))
{
string fileName = "../../../blacklist.xml";
using (var md5 = MD5.Create())
{
using (var stream = File.OpenRead(fileName))
{
return(md5.ComputeHash(stream));
}
}
}
}
catch (Exception ex)
{
throw new SecurityException("Authorization failed" + ex.Message);
}
return(null);
}
protected override bool CheckAccessCore(OperationContext operationContext)
{
IPrincipal principal = operationContext.ServiceSecurityContext.AuthorizationContext.Properties["Principal"] as IPrincipal;
MyPrincipal myPrincipal = principal as MyPrincipal;
if (myPrincipal.IsInRole("ExchangeSessionKey"))
{
return(true);
}
return(false);
}
public void StartService(byte[] array, int size, byte[] iVector)
{
try
{
MyPrincipal mp = Thread.CurrentPrincipal as MyPrincipal;
if (mp.IsInRole("RunService"))
{
IFormatter form = new BinaryFormatter();
Aes alg = Aes.Create();
alg.IV = iVector;
byte[] aesKey = new byte[32];
Array.Copy(Encoding.ASCII.GetBytes(Key), 0, aesKey, 0, 32);
alg.Key = aesKey;
alg.Mode = CipherMode.CBC;
MemoryStream bencr = new MemoryStream(array);
CryptoStream cr = new CryptoStream(bencr, alg.CreateDecryptor(), CryptoStreamMode.Read);
byte[] buf = new byte[size];
cr.Read(buf, 0, size);
MemoryStream unenc = new MemoryStream(buf);
unenc.Position = 0;
Console.WriteLine("\nRecived data:");
ClientInfo resd = (ClientInfo)form.Deserialize(unenc);
Console.WriteLine("Port: " + resd.port);
Console.WriteLine("Protocol: " + resd.protocol);
Console.WriteLine("Machine name: " + resd.machineName);
if (CheckBlackList(resd, mp.Groups))
{
throw new SecurityException("Start service failed, requested parameters are in blacklist.");
}
else
{
Process p = new Process();
p.StartInfo.FileName = @"..\..\..\ServiceManagement.Service\bin\Debug\ServiceManagement.Service.exe";
p.StartInfo.Arguments = resd.port + " " + resd.protocol;
p.Start();
}
}
else
{
throw new SecurityException("Authorization failed, user can't start services.");
}
}
catch (Exception ex)
{
throw new SecurityException("Authorization failed" + ex.Message);
}
}
protected virtual IPrincipal GetPrincipal(IIdentity identity)
{
lock (locker)
{
IPrincipal principal = null;
WindowsIdentity windowsIdentity = identity as WindowsIdentity;
if (windowsIdentity != null)
{
principal = new MyPrincipal(windowsIdentity);
}
return(principal);
}
}
public void AddProtocol(string protocol, string group)
{
try
{
MyPrincipal mp = Thread.CurrentPrincipal as MyPrincipal;
if (mp.IsInRole("ModifyBlackList"))
{
XmlManager.Instance.Write(new BlackClass("-1", protocol, group));
Console.WriteLine("AddProtocol() executed!");
_checksum = GetCheckSum();
}
}
catch (Exception ex)
{
throw new SecurityException("Authorization failed" + ex.Message);
}
}
public string Connect()
{
try
{
MyPrincipal mp = Thread.CurrentPrincipal as MyPrincipal;
if (mp.IsInRole("ExchangeSessionKey"))
{
Console.WriteLine("Connect() executed!");
Key = RandomString(32);
_checksum = GetCheckSum();
return(Key);
}
return("");
}
catch (Exception ex)
{
throw new SecurityException("Authorization failed" + ex.Message);
}
}
