//sign pdf
public string SignPdf(string path, Funciones.Archivos.Pdf.Dtos.PdfSign.PdfSignRequestDto jsonObject)
{
try
{
LogTransaction("Iniciando proceso de firmado");
using (var pdfManager = new ManagePdfFile())
{
var response = pdfManager.SignPdf(
SignRenderingMode.GRAPHIC_AND_DESCRIPTION,
jsonObject,
path
);
WriteToFile(response);
LogTransaction("Firma digital finalizada: ");
return(response);
}
}
catch (Exception exce)
{
LogTransaction(exce.Message);
LogTransaction(exce.StackTrace);
return(exce.StackTrace);
}
}
public string SignPdf(string path, Funciones.Archivos.Pdf.Dtos.PdfSign.PdfSignRequestDto jsonObject)
{
/*try
* {
* LogTransaction("Iniciando proceso de firmado");
* using (var pdfManager = new ManagePdfFile())
* {
* var response = pdfManager.SignPdf(
* SignRenderingMode.GRAPHIC_AND_DESCRIPTION,
* jsonObject,
* path
* );
*
* LogTransaction("respuesta: " + response);
* return response;
* }
* }
* catch (Exception exce)
* {
* LogTransaction(exce.Message);
* LogTransaction(exce.StackTrace);
* return exce.StackTrace;
* }*/
try
{
LogTransaction("Iniciando proceso de firmado de archivo pdf");
var arguments = "\\\\localhost -i WinFormsFirmarPdf.exe " + path;
var startInfo = new ProcessStartInfo
{
CreateNoWindow = false,
UseShellExecute = false,
FileName = "psexec",//@"c:\windows\system32\FirmarPdf.exe",
WindowStyle = ProcessWindowStyle.Normal,
//UserName = "******",
//Domain = ".\\",
//Password = password,
Arguments = arguments
//"\\\\localhost -i FirmarPdf " + path
};
Process.Start(startInfo);
LogTransaction("Ejecutando: " + "psexec " + arguments);
try
{
// Start the process with the info we specified.
// Call WaitForExit and then the using statement will close.
using (var exeProcess = Process.Start(startInfo))
{
exeProcess.WaitForExit();
LogTransaction("Proceso finalizado: " + startInfo.FileName + " " + startInfo.Arguments);
}
}
catch (Exception exce)
{
LogTransaction(exce.StackTrace);
LogTransaction(exce.Message);
}
return("");
}
catch (Exception exce)
{
WriteToFile(exce.StackTrace);
WriteToFile(exce.Message);
return(exce.StackTrace + " <-> " + exce.InnerException + "<-> " + exce.Message);
}
}
// metodo principal para el procesamiento de pdfs (firma digital adjuntos metadatos)
public string SignPdf(
SignRenderingMode signRenderingMode,
Funciones.Archivos.Pdf.Dtos.PdfSign.PdfSignRequestDto jsonToProcess,
string path)
{
try
{
//var json = File.ReadAllText(path);
//var jsonToProcess = JsonConvert
//.DeserializeObject<Funciones.Archivos.Pdf.Dtos.PdfSign.PdfSignRequestDto>(json.Replace("<EOF>", ""));
_target = jsonToProcess.outPath;
_fs = GetPdfStreamFormUrlOrBase64(jsonToProcess.dataUriBase64PdfToSign);
// conversor de certificados
var objCP = new BcX509.X509CertificateParser();
var crlList = new List <ICrlClient>();
// buscar el certificado por numero serial
var certificate = SearchCertificate(jsonToProcess.certificateSerialNumber);
if (certificate == null)
{
return("No se encontraron certificados para el serial: " + jsonToProcess.certificateSerialNumber);
}
// definicion del certificado operable
var objChain = new BcX509.X509Certificate[] { objCP.ReadCertificate(certificate.RawData) };
crlList.Add(new CrlClientOnline(objChain));
//TODO: habilitar la estampa cronologica (Error) (verificar tsa Timestamping Authority)
// agregamos la estampa cronologica
#region estampa cronologica
ITSAClient tsaClient = null;
IOcspClient ocspClient = null;
if (jsonToProcess.addTimeStamp)
{
ocspClient = new OcspClientBouncyCastle();
//CertificateUtil.getTSAURL(Org.BouncyCastle.Security.DotNetUtilities.FromX509Certificate(certificate));
tsaClient = new TSAClientBouncyCastle(jsonToProcess.urlTSA);
}
#endregion estampa cronologica
// cargue del pdf al lector de itextsharp
var _pdfReader = new PdfReader(_fs);
// cargue an memoria del pdf
using (var _wfs = new MemoryStream())
{
// creacion de la firma a partir del lector itextsharp y el pdf en memoria
using (var objStamper = PdfStamper.CreateSignature(_pdfReader, _wfs, '\0', null, true))
{
// Procesar adjuntos
var attachmentIndex = 1;
(jsonToProcess.dataUriBase64ListOfPdfToAttach as List <FileToAttachDto>).ForEach(
(item) =>
{
//TODO: verificar si no se va a necesitar
if (!item.pathOrDataUriBase64.StartsWith("data:"))
{
var pfs = PdfFileSpecification.FileEmbedded(objStamper.Writer, item.fileDescription, attachmentIndex + "_" + item.fileDescription + ".pdf", null, true);
objStamper.Writer.AddFileAttachment("Adjunto número: " + attachmentIndex, pfs);
}
else
{
try
{
var x = StreamToByteArray(GetPdfStreamFormUrlOrBase64(item.pathOrDataUriBase64));
var pfs = PdfFileSpecification.FileEmbedded(
objStamper.Writer,
item.fileDescription + ".pdf",
item.fileDescription + ".pdf",
x,
true,
item.mimeType,
null
);
objStamper.Writer.AddFileAttachment("Adjunto número: " + attachmentIndex, pfs);
//.AddFileAttachment("adjunto número: " + attachmentIndex, x, "adjunto_" + attachmentIndex + ".pdf", "adjunto " + attachmentIndex);
}
catch (Exception exce)
{
Console.WriteLine(exce.StackTrace);
}
}
attachmentIndex++;
});
// definicion de la apariencia de la firma
var signatureAppearance = objStamper.SignatureAppearance;
// definicion del enum itextsharp a partir del enum parametro local
var mode = Enum.Parse(typeof(RenderingMode), signRenderingMode.ToString());
signatureAppearance.SignatureRenderingMode = (RenderingMode)mode;
signatureAppearance.Reason = jsonToProcess.reasonToSign;
signatureAppearance.Location = jsonToProcess.locationDescription;
// agregar marca visual de firma digital
#region agregar marca visual firma digital
if (jsonToProcess.addVisibleSignMark)
{
// definicion de imagen desde ruta o base64
signatureAppearance.SignatureGraphic = GetImageFormUrlOrBase64(jsonToProcess.dataUriBase64SignImage);
// definicion de la firma digital visible
signatureAppearance.SetVisibleSignature(
new Rectangle(jsonToProcess.visibleSignMarkWidth, jsonToProcess.visibleSignMarkHeight, jsonToProcess.xVisibleSignMarkPosition, jsonToProcess.yVisibleSignMarkPosition),
_pdfReader.NumberOfPages,
jsonToProcess.visibleSignText);
}
#endregion agregar marca visual firma digital
// Agregar propiedades extendidas
objStamper.MoreInfo = (jsonToProcess.metadata as List <MetadataDto>).ToDictionary(x => x.key, x => x.value);
//TODO: verificar si no es necesario la utilizacion de XMP manual (actualmente funciona)
#region xmp implementacion manual
/* objStamper.Writer.CreateXmpMetadata();
* var xmp = objStamper.Writer.XmpMetadata;
*
*
* //XMP metadatos
* IXmpMeta xmp;
* using (var stream = File.OpenRead(@"C:\Users\danie\OneDrive\Escritorio\xmpMetadata.xml"))
* xmp = XmpMetaFactory.Parse(stream);
*
* foreach (var property in xmp.Properties)
* {
* Console.WriteLine($"Path={property.Path} Namespace={property.Namespace} Value={property.Value}");
* }
*
* var serializeOptions = new SerializeOptions();
* serializeOptions.UsePlainXmp = true;
* var newMetadata = XmpMetaFactory.SerializeToBuffer(xmp, serializeOptions);
* objStamper.XmpMetadata = newMetadata;*/
#endregion xmp implementacion manual
// Firmar digitalmente
var externalSignature = new X509Certificate2Signature(certificate, jsonToProcess.certificateHashAlgorithm);
MakeSignature.SignDetached(signatureAppearance, externalSignature, objChain, crlList, ocspClient, tsaClient, 0, CryptoStandard.CMS);
}
var pdfFileTocreate = jsonToProcess.outPath.Replace("json", "pdf");
System.IO.File.WriteAllBytes(pdfFileTocreate, _wfs.ToArray());
Process.Start(pdfFileTocreate);
return(Convert.ToBase64String(_wfs.ToArray()));
}
}
catch (Exception exce)
{
WriteToFile(exce.StackTrace);
WriteToFile(exce.Message);
return(exce.Message);
}
}
