private async Task <Message> ComputeResponseAsync(Message receivedMessage)
{
await Task.Delay(10);
try
{
XmlDocument xmlDoc = new XmlDocument();
//xmlDoc.PreserveWhitespace = false;/////////////////////////////////Should do it in both sign and verify
xmlDoc.LoadXml(receivedMessage.XmlText);
X509Certificate2 cert = XmlSign.GetX509Certificate2FromDongle(); //Load Certificate
XmlDocument signedDoc = XmlSign.GetSignedXMLDocument(xmlDoc, cert);
if (signedDoc != null)
{
receivedMessage.XmlText = signedDoc.OuterXml;
return(receivedMessage);
}
else
{
receivedMessage.XmlText = "";
MessageBox.Show("File Tempered After Last Sign");
return(receivedMessage);
}
}
catch (Exception ex)
{
receivedMessage.XmlText = ex.Message.ToString();
return(receivedMessage);
}
}
private static string GetXmlStringBeforeSigning(XmlDocument xmlDoc, out bool hasAnySignature)
{
hasAnySignature = XmlSign.CheckIfDocumentPreviouslySigned(xmlDoc);
XmlDocument basicXml = XmlSign.GetRealXmlDocument(xmlDoc);
return(basicXml.OuterXml);
}
private void OnLoaded(object sender, RoutedEventArgs e)
{
XmlDocument tempXml = new XmlDocument();
tempXml.LoadXml(receivedXmlText);
certificateList = XmlSign.GetAllSign(tempXml);
realDocument = XmlSign.GetRealXmlDocument(tempXml);
XmlDataProvider dataProvider = this.FindResource("xmlDataProvider") as XmlDataProvider;
#pragma warning disable CS8602 // Dereference of a possibly null reference.
dataProvider.Document = realDocument;
#pragma warning restore CS8602 // Dereference of a possibly null reference.
Signature.ItemsSource = certificateList;
}
internal static SignedXmlModel GetSignedXmlModel(string contentString)
{
SignedXmlModel signedXml = new SignedXmlModel();
bool hasAnySignature;
XmlDocument xmlDoc = new XmlDocument();
try {
xmlDoc.LoadXml(contentString);
}
catch (Exception ex)
{
Console.WriteLine(ex);
signedXml.success = false;
signedXml.error = "File is not a valid XML";
return(signedXml);
}
try
{
signedXml.xml = GetXmlStringBeforeSigning(xmlDoc, out hasAnySignature);
if (hasAnySignature)
{
List <CertificateModel> certs = XmlSign.GetAllSign(xmlDoc);
if (certs == null)
{
signedXml.success = false;
signedXml.error = "File was modified";
signedXml.xml = null;
signedXml.signatures = null;
return(signedXml);
}
signedXml.signatures = certs;
}
return(signedXml);
}
catch (Exception ex)
{
Console.WriteLine(ex);
signedXml.success = false;
signedXml.error = "Unknown Exception, Please check log File of XML Verifire Service";
signedXml.xml = null;
signedXml.signatures = null;
return(signedXml);
}
}
private void SignButtonClicked(object sender, RoutedEventArgs e)
{
//http://localhost:8080/file/download/831286aaff629434d9d4ddcbec679f8ecbe4afb0631c73e60d0968fbea2cccbea63aa8afb0a5bef528a3e2433c0d9994713da42fdadd62f5fab19d0365520e3cbig.xml
String fileName = SelectedFileName.Text.Trim();
XmlDocument xmlDoc = new XmlDocument();
//xmlDoc.PreserveWhitespace = false;/////////////////////////////////Should do it in both sign and verify
xmlDoc.Load(fileName);
X509Certificate2 cert = XmlSign.GetX509Certificate2FromDongle(); //Load Certificate
XmlDocument signedDoc = XmlSign.GetSignedXMLDocument(xmlDoc, cert);
if (signedDoc != null)
{
signedDoc.Save(fileName + "_signed.xml"); //Sign a file
}
else
{
MessageBox.Show("File Tempered After Last Sign");
return;
}
XmlDocument signedXmlDoc = new XmlDocument();
//xmlDoc.PreserveWhitespace = false;/////////////////////////////////
signedXmlDoc.Load(fileName + "_signed.xml");
//Verify
bool?ifSignVerified = XmlSign.VerifyAllSign(signedXmlDoc);
if (ifSignVerified == true)
{
MessageBox.Show("Verified");
}
else if (ifSignVerified == false)
{
MessageBox.Show("Failed Verification");
}
else
{
MessageBox.Show("File Has No Sign");
}
}
