public static void WriteXmlSigned(this Fattura fattura, X509Certificate2 cert, string p7mFilePath)
{
string res = string.Empty;
string tempFile = Path.GetTempFileName();
if (!p7mFilePath.ToLowerInvariant().EndsWith(".p7m"))
{
p7mFilePath += ".p7m";
}
try
{
fattura.WriteXml(tempFile);
ContentInfo content = new ContentInfo(new Oid("1.2.840.113549.1.7.1", "PKCS 7 Data"), File.ReadAllBytes(tempFile));
SignedCms signedCms = new SignedCms(SubjectIdentifierType.IssuerAndSerialNumber, content, false);
CmsSigner signer = new CmsSigner(cert);
signer.IncludeOption = X509IncludeOption.EndCertOnly;
signer.DigestAlgorithm = new Oid("2.16.840.1.101.3.4.2.1", "SHA256");
signer.SignedAttributes.Add(new Pkcs9SigningTime(DateTime.Now));
try
{
//PKCS7 format
signedCms.ComputeSignature(signer, false);
}
catch (CryptographicException cex)
{
//To evaluate for the future https://stackoverflow.com/a/52897100
/*
* // Try re-importing the private key into a better CSP:
* using (RSA tmpRsa = RSA.Create())
* {
* tmpRsa.ImportParameters(cert.GetRSAPrivateKey().ExportParameters(true));
*
* using (X509Certificate2 tmpCertNoKey = new X509Certificate2(cert.RawData))
* using (X509Certificate2 tmpCert = tmpCertNoKey.CopyWithPrivateKey(tmpRsa))
* {
* signer.Certificate = tmpCert;
* signedCms.ComputeSignature(signer, false);
* }
* }*/
throw cex;
}
byte[] signature = signedCms.Encode();
File.WriteAllBytes(p7mFilePath, signature);
}
catch (Exception)
{
throw new FatturaElettronicaSignatureException(Resources.ErrorMessages.FirmaException);
}
finally
{
if (File.Exists(tempFile))
{
File.Delete(tempFile);
}
}
}
public static void WriteHtml(this Fattura fattura, string outPath, string xslPath)
{
if (outPath == null)
{
throw new ArgumentNullException(nameof(outPath));
}
if (xslPath == null)
{
throw new ArgumentNullException(nameof(xslPath));
}
var tempXml = Path.GetTempFileName();
using (var w = XmlWriter.Create(tempXml, new XmlWriterSettings {
Indent = true
}))
{
fattura.WriteXml(w);
}
var xt = new XslCompiledTransform();
xt.Load(xslPath);
xt.Transform(tempXml, outPath);
}
public static void WriteXml(this Fattura fattura, string filePath)
{
using (var w = XmlWriter.Create(filePath, new XmlWriterSettings {
Indent = true
}))
{
fattura.WriteXml(w);
}
}
private IFileInformation TryGenerateXMLFile(IFileInformation _FileInformation, String Destination, FileConversionUpdate _FileConversionUpdate)
{
String FileText = File.ReadAllText(_FileInformation.Path.LocalPath);
if (!FileText.Contains("FatturaElettronicaHeader") && !FileText.Contains("FatturaElettronicaBody"))
{
throw new InvalidOperationException("Unsupported Format" + _FileInformation.Path);
}
int _XMLStartIndex = FileText.IndexOf(Conventions.HeaderGaurd) - 1;
int _XMLEndIndex = FileText.LastIndexOf(Conventions.BodyGaurd) - _XMLStartIndex + Conventions.BodyGaurd.Length + 1;
String _RawBoundedData = FileText.Substring(_XMLStartIndex, _XMLEndIndex);
String _PossibleXMLData = XML.Conventions.Header + Conventions.Header + CleanInvalidXmlChars(_RawBoundedData) + Conventions.Footer;
FileInformation _ResultFileInformation = new FileInformation(new FileFormat(EFileExtension.XML, EFormat.Uknown, ""), Destination + "\\" + _FileInformation.FileName + ".xml");
using (XmlReader _XmlReader = XmlReader.Create(new StringReader(_PossibleXMLData), new XmlReaderSettings {
IgnoreWhitespace = true, IgnoreComments = true
}))
{
Fattura _Fattura = new Fattura( );
try
{
_Fattura.ReadXml(_XmlReader);
if (_Fattura.Validate( ).IsValid)
{
using (XmlWriter _XmlWriter = XmlWriter.Create(_ResultFileInformation.Path.LocalPath, new XmlWriterSettings {
Indent = true
}))
{
_Fattura.WriteXml(_XmlWriter);
}
_FileConversionUpdate.AddTransformation(EFileTransformation.ConvertedToCopied, _FileInformation, _ResultFileInformation);
}
else
{
throw new ArgumentException("Invalid XMLPA FileContent ");
}
}
catch (Exception Ex)
{
File.WriteAllText(_ResultFileInformation.Path.LocalPath, _PossibleXMLData);
_FileConversionUpdate.AddTransformation(EFileTransformation.ConvertedToCopied,
_FileInformation,
_ResultFileInformation,
new StateEventArgs(ESourceState.Unstable, Ex));
}
}
return(File.Exists(_ResultFileInformation.Path.LocalPath) ? _ResultFileInformation : null);
}
