/// <summary>Switches to the previous revision.</summary>
/// <exception cref="System.IO.IOException"/>
/// <exception cref="Org.BouncyCastle.Security.GeneralSecurityException"/>
public virtual void SwitchToPreviousRevision()
{
LOGGER.Info("Switching to previous revision.");
latestRevision = false;
dss = document.GetCatalog().GetPdfObject().GetAsDictionary(PdfName.DSS);
DateTime cal = pkcs7.GetTimeStampDate();
if (cal == SignUtils.UNDEFINED_TIMESTAMP_DATE)
{
cal = pkcs7.GetSignDate();
}
// TODO: get date from signature
signDate = cal.ToUniversalTime();
IList <String> names = sgnUtil.GetSignatureNames();
if (names.Count > 1)
{
signatureName = names[names.Count - 2];
document = new PdfDocument(new PdfReader(sgnUtil.ExtractRevision(signatureName)));
this.acroForm = PdfAcroForm.GetAcroForm(document, true);
names = sgnUtil.GetSignatureNames();
signatureName = names[names.Count - 1];
pkcs7 = CoversWholeDocument();
LOGGER.Info(String.Format("Checking {0}signature {1}", pkcs7.IsTsp() ? "document-level timestamp " : "", signatureName
));
}
else
{
LOGGER.Info("No signatures in revision");
pkcs7 = null;
}
}
public virtual void GetSignaturesTest02()
{
String inPdf = sourceFolder + "simpleDocument.pdf";
PdfDocument pdfDocument = new PdfDocument(new PdfReader(inPdf));
SignatureUtil signatureUtil = new SignatureUtil(pdfDocument);
IList <String> signatureNames = signatureUtil.GetSignatureNames();
NUnit.Framework.Assert.AreEqual(0, signatureNames.Count);
}
/// <exception cref="Org.BouncyCastle.Security.GeneralSecurityException"/>
protected internal virtual void InitLtvVerifier(PdfDocument document)
{
this.document = document;
this.acroForm = PdfAcroForm.GetAcroForm(document, true);
this.sgnUtil = new SignatureUtil(document);
IList <String> names = sgnUtil.GetSignatureNames();
signatureName = names[names.Count - 1];
this.signDate = DateTimeUtil.GetCurrentUtcTime();
pkcs7 = CoversWholeDocument();
LOGGER.Info(MessageFormatUtil.Format("Checking {0}signature {1}", pkcs7.IsTsp() ? "document-level timestamp "
: "", signatureName));
}