public static void PerformPairing(this IClientDevice device, string pinCode, string serviceName)
{
if (device == null)
{
throw new ArgumentNullException("device");
}
if (string.IsNullOrEmpty(pinCode))
{
throw new ArgumentNullException("pinCode");
}
if (pinCode.Length != 4 || !pinCode.All(char.IsDigit))
{
throw new ArgumentException("PIN code must be exactly 4 digits", "pinCode");
}
if (string.IsNullOrEmpty(serviceName))
{
throw new ArgumentNullException("serviceName");
}
Debug.Print("Trying to pair with device {0} at {1}", device.Name, device.Host);
string pairCode = device.PairCode;
if (string.IsNullOrEmpty(pairCode) || pairCode.Length != 16 ||
!pairCode.All(c => char.IsDigit(c) || (c >= 'A' && c <= 'F')))
{
// PairCode should be exactly 16 uppercase hexadecimal chars
throw new PairingException("Device didn't return a valid pair code");
}
// here some magic goes ;)
byte[] data = new byte[24];
Encoding.ASCII.GetBytes(pairCode, 0, 16, data, 0);
Encoding.Unicode.GetBytes(pinCode, 0, 4, data, 16);
data = new Delay.MD5Managed().ComputeHash(data);
var hashString = new StringBuilder(32);
for (int i = 0; i < data.Length; i++)
{
hashString.AppendFormat("{0:X2}", data[i]);
}
string url = string.Format("http://{0}/pair?pairingcode={1}&servicename={2}", device.Host, hashString, HttpUtility.UrlPathEncode(serviceName));
using (WebClient client = new WebClient())
{
try
{
data = client.DownloadData(url);
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.ProtocolError)
{
if (((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.NotFound)
{
throw new PairingException("Pin code is invalid");
}
}
throw new PairingException("Unable to complete pairing: " + ex.Message);
}
}
PairingReply reply;
try
{
reply = new PairingReply(data);
}
catch (ArgumentException ex) // PairingReply constructor doesn't throw any other exception types
{
throw new PairingException("Unexpected reply from device", ex);
}
var key = Registry.CurrentUser.CreateSubKey(@"Software\Wintense\TouchRemote\Devices\" + device.DeviceId);
key.SetValue(null, reply.Name);
key.SetValue("Cookie", reply.PairingGuid, RegistryValueKind.Binary);
key.SetValue("Type", reply.Type, RegistryValueKind.String);
key.Close();
cachedDevices = null;
}
public static void PerformPairing(this IClientDevice device, string pinCode, string serviceName)
{
if (device == null)
throw new ArgumentNullException("device");
if (string.IsNullOrEmpty(pinCode))
throw new ArgumentNullException("pinCode");
if (pinCode.Length != 4 || !pinCode.All(char.IsDigit))
throw new ArgumentException("PIN code must be exactly 4 digits", "pinCode");
if (string.IsNullOrEmpty(serviceName))
throw new ArgumentNullException("serviceName");
Debug.Print("Trying to pair with device {0} at {1}", device.Name, device.Host);
string pairCode = device.PairCode;
if (string.IsNullOrEmpty(pairCode) || pairCode.Length != 16 || !pairCode.All(c => c.IsHexDigit()))
{
// PairCode should be exactly 16 hexadecimal chars
throw new PairingException("Device didn't return a valid pair code");
}
// here some magic goes ;)
byte[] data = new byte[24];
Encoding.ASCII.GetBytes(pairCode, 0, 16, data, 0);
Encoding.Unicode.GetBytes(pinCode, 0, 4, data, 16);
data = new Delay.MD5Managed().ComputeHash(data);
var hashString = new StringBuilder(32);
for (int i = 0; i < data.Length; i++)
hashString.AppendFormat("{0:X2}", data[i]);
string url = string.Format("http://{0}/pair?pairingcode={1}&servicename={2}", device.Host, hashString, HttpUtility.UrlPathEncode(serviceName));
using (WebClient client = new WebClient())
{
try
{
data = client.DownloadData(url);
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.ProtocolError)
if (((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.NotFound)
throw new PairingException("Pin code is invalid");
throw new PairingException("Unable to complete pairing: " + ex.Message);
}
}
PairingReply reply;
try
{
reply = new PairingReply(data);
}
catch (ArgumentException ex) // PairingReply constructor doesn't throw any other exception types
{
throw new PairingException("Unexpected reply from device", ex);
}
var key = Registry.CurrentUser.CreateSubKey(@"Software\Wintense\TouchRemote\Devices\" + device.DeviceId);
key.SetValue(null, reply.Name);
key.SetValue("Cookie", reply.PairingGuid, RegistryValueKind.Binary);
key.SetValue("Type", reply.Type, RegistryValueKind.String);
key.Close();
cachedDevices = null;
}