protected override byte[] OnDataReceived(byte[] buffer, Encoding encoding, CancellationToken cancellationToken)
{
// Verify fingetprint data.
var data = Encoding.UTF8.GetString(buffer);
var nameValuePairs = data.Split('&');
var dictionary = new Dictionary <string, string>();
foreach (var nameValuePair in nameValuePairs)
{
var pair = nameValuePair.Split('=');
var name = ConversionUtilities.Decode(HttpUtility.UrlDecode(pair [0]), encoding);
var value = ConversionUtilities.Decode(HttpUtility.UrlDecode(pair [1]), encoding);
dictionary.Add(name, value);
}
var type = (VerificationCommand)Enum.Parse(typeof(VerificationCommand), dictionary ["Type"], false);
var request = Request <VerificationCommand> .FromType(type);
switch (request.Type)
{
case VerificationCommand.Enroll:
{
long userId = 0;
var document = new XmlDocument();
// Call SDK to get fingerprint image.
var image = encoding.GetBytes(dictionary ["FingetprintImage"]);
// Process [image], and create DB entry, and get newly created user details.
userId = 1;
var elementUser = document.CreateElement("User");
elementUser.Attributes.Append(document, "Id", userId.ToString());
request.Response.Data.Elements.Add(elementUser);
return(encoding.GetBytes(request.ToXmlDocument(document).OuterXml));
}
case VerificationCommand.Verify:
{
long userId = 0;
var document = new XmlDocument();
// Call SDK to get fingerprint image.
//var image = encoding.GetBytes(dictionary ["FingetprintImage"]);
// Process [image] and get corresponding UserId.
userId = 1;
var elementUser = document.CreateElement("User");
elementUser.Attributes.Append(document, "Id", userId.ToString());
request.Response.Data.Elements.Add(elementUser);
request.Response.Result = true;
return(encoding.GetBytes(request.ToXmlDocument(document).OuterXml));
}
}
return(new byte [] { });
}