//if exception was not thrown document is not revoked or it couldn't be verified
protected internal virtual void CompareSignatures(String outFile, String cmpFile)
{
SignedDocumentInfo outInfo = CollectInfo(outFile);
SignedDocumentInfo cmpInfo = CollectInfo(cmpFile);
CompareSignedDocumentsInfo(outInfo, cmpInfo);
}
private void CompareSignedDocumentsInfo(SignedDocumentInfo outInfo, SignedDocumentInfo cmpInfo)
{
if (outInfo.GetNumberOfTotalRevisions() != cmpInfo.GetNumberOfTotalRevisions())
{
AddComparisonError("Number of total revisions", outInfo.GetNumberOfTotalRevisions().ToString(),
cmpInfo.GetNumberOfTotalRevisions().ToString());
}
if (outInfo.GetSignatureInfos().Count != cmpInfo.GetSignatureInfos().Count)
{
AddComparisonError("Number of signatures in document", outInfo.GetSignatureInfos().Count.ToString(),
cmpInfo.GetSignatureInfos().Count.ToString());
}
for (int i = 0; i < outInfo.GetSignatureInfos().Count; ++i)
{
SignatureInfo outSig = outInfo.GetSignatureInfos()[i];
SignatureInfo cmpSig = cmpInfo.GetSignatureInfos()[i];
String outAltName = outSig.GetAlternativeSignerName();
String cmpAltName = cmpSig.GetAlternativeSignerName();
if (CheckIfEqual(outAltName, cmpAltName))
{
AddComparisonError("Alternative signer name", outAltName, cmpAltName);
}
String outContactInfo = outSig.GetContactInfo();
String cmpContactInfo = cmpSig.GetContactInfo();
if (CheckIfEqual(outContactInfo, cmpContactInfo))
{
AddComparisonError("Contact info", outContactInfo, cmpContactInfo);
}
String outDigestAlg = outSig.GetDigestAlgorithm();
String cmpDigestAlg = cmpSig.GetDigestAlgorithm();
if (CheckIfEqual(outDigestAlg, cmpDigestAlg))
{
AddComparisonError("Digest algorithm", outDigestAlg, cmpDigestAlg);
}
String outEncryptAlg = outSig.GetEncryptionAlgorithm();
String cmpEncryptAlg = cmpSig.GetEncryptionAlgorithm();
if (CheckIfEqual(outEncryptAlg, cmpEncryptAlg))
{
AddComparisonError("Encryption algorithm", outEncryptAlg, cmpEncryptAlg);
}
String outLocation = outSig.GetLocation();
String cmpLocation = cmpSig.GetLocation();
if (CheckIfEqual(outLocation, cmpLocation))
{
AddComparisonError("Location", outLocation, cmpLocation);
}
String outReason = outSig.GetReason();
String cmpReason = cmpSig.GetReason();
if (CheckIfEqual(outReason, cmpReason))
{
AddComparisonError("Reason", outReason, cmpReason);
}
String outSigName = outSig.GetSignatureName();
String cmpSigName = cmpSig.GetSignatureName();
if (CheckIfEqual(outSigName, cmpSigName))
{
AddComparisonError("Signature name", outSigName, cmpSigName);
}
String outSignerName = outSig.GetSignerName();
String cmpSignerName = cmpSig.GetSignerName();
if (CheckIfEqual(outSignerName, cmpSignerName))
{
AddComparisonError("Signer name", outSignerName, cmpSignerName);
}
String outFilterSubtype = outSig.GetFilterSubtype();
String cmpFilterSubtype = cmpSig.GetFilterSubtype();
if (CheckIfEqual(outFilterSubtype, cmpFilterSubtype))
{
AddComparisonError("Filter subtype", outFilterSubtype, cmpFilterSubtype);
}
int outSigRevisionNumber = outSig.GetRevisionNumber();
int cmpSigRevisionNumber = cmpSig.GetRevisionNumber();
if (outSigRevisionNumber != cmpSigRevisionNumber)
{
AddComparisonError("Signature revision number", outSigRevisionNumber.ToString(),
cmpSigRevisionNumber.ToString());
}
String outTimeStampService = outSig.GetTimeStampService();
String cmpTimeStampService = cmpSig.GetTimeStampService();
if (CheckIfEqual(outTimeStampService, cmpTimeStampService))
{
AddComparisonError("TimeStamp service", outTimeStampService, cmpTimeStampService);
}
bool outAnnotsAllowed = outSig.IsAddingAnnotationsAllowed();
bool cmpAnnotsAllowed = cmpSig.IsAddingAnnotationsAllowed();
if (outAnnotsAllowed != cmpAnnotsAllowed)
{
AddComparisonError("Annotations allowance", outAnnotsAllowed.ToString(), cmpAnnotsAllowed
.ToString());
}
bool outFieldsFillAllowed = outSig.IsFieldsFillAllowed();
bool cmpFieldsFillAllowed = cmpSig.IsFieldsFillAllowed();
if (outFieldsFillAllowed != cmpFieldsFillAllowed)
{
AddComparisonError("Fields filling allowance", outFieldsFillAllowed.ToString(), cmpFieldsFillAllowed
.ToString());
}
bool outIsCertification = outSig.IsCertifiaction();
bool cmpIsCertification = cmpSig.IsCertifiaction();
if (outIsCertification != cmpIsCertification)
{
AddComparisonError("Comparing signature to certification result", outIsCertification
.ToString(), cmpIsCertification.ToString());
}
bool outIsWholeDocument = outSig.IsSignatureCoversWholeDocument();
bool cmpIsWholeDocument = cmpSig.IsSignatureCoversWholeDocument();
if (outIsWholeDocument != cmpIsWholeDocument)
{
AddComparisonError("Whole document covering", outIsWholeDocument.ToString(), cmpIsWholeDocument
.ToString());
}
Rectangle outFp = outSig.GetSignaturePosition();
Rectangle cmpFp = cmpSig.GetSignaturePosition();
String outPositionRect = outFp == null ? null : outFp.ToString();
String cmpPositionRect = cmpFp == null ? null : cmpFp.ToString();
if (CheckIfEqual(outPositionRect, cmpPositionRect))
{
AddComparisonError("Signature position", outPositionRect, cmpPositionRect);
}
IList <String> outFieldLocks = outSig.GetFieldsLocks();
IList <String> cmpFieldLocks = cmpSig.GetFieldsLocks();
int outLocksNumber = outFieldLocks.Count;
int cmpLocksNumber = cmpFieldLocks.Count;
if (outLocksNumber != cmpLocksNumber)
{
AddComparisonError("Field locks number", outLocksNumber.ToString(), cmpLocksNumber
.ToString());
}
for (int j = 0; j < outLocksNumber; ++j)
{
if (!outFieldLocks[j].Equals(cmpFieldLocks[j]))
{
AddComparisonError("Field lock", outFieldLocks[j], cmpFieldLocks[j]);
}
}
if (outSig.GetCertificateInfos().Count != cmpSig.GetCertificateInfos().Count)
{
AddComparisonError("Certificates number", outSig.GetCertificateInfos().Count.ToString(),
cmpSig.GetCertificateInfos().Count.ToString());
}
for (int j_1 = 0; j_1 < outSig.GetCertificateInfos().Count; ++j_1)
{
CertificateInfo outCert = outSig.GetCertificateInfos()[j_1];
CertificateInfo cmpCert = cmpSig.GetCertificateInfos()[j_1];
if (!outCert.GetIssuer().Equals(cmpCert.GetIssuer()))
{
AddComparisonError("Certificate issuer", outCert.GetIssuer().ToString(),
cmpCert.GetIssuer().ToString());
}
if (!outCert.GetSubject().Equals(cmpCert.GetSubject()))
{
AddComparisonError("Certificate subject", outCert.GetSubject().ToString(), cmpCert
.GetSubject().ToString());
}
if (!outCert.GetValidFrom().Equals(cmpCert.GetValidFrom()))
{
AddComparisonError("Date \"valid from\"", outCert.GetValidFrom().ToString(), cmpCert
.GetValidFrom().ToString());
}
if (!outCert.GetValidTo().Equals(cmpCert.GetValidTo()))
{
AddComparisonError("Date \"valid to\"", outCert.GetValidTo().ToString(),
cmpCert.GetValidTo().ToString());
}
}
}
}
private SignedDocumentInfo CollectInfo(String documentPath)
{
SignedDocumentInfo docInfo = new SignedDocumentInfo();
PdfDocument pdfDoc = new PdfDocument(new PdfReader(documentPath));
PdfAcroForm form = PdfAcroForm.GetAcroForm(pdfDoc, false);
SignatureUtil signUtil = new SignatureUtil(pdfDoc);
IList <String> names = signUtil.GetSignatureNames();
docInfo.SetNumberOfTotalRevisions(signUtil.GetTotalRevisions());
SignaturePermissions perms = null;
IList <SignatureInfo> signInfos = new List <SignatureInfo>();
foreach (String name in names)
{
SignatureInfo sigInfo = new SignatureInfo();
sigInfo.SetSignatureName(name);
sigInfo.SetRevisionNumber(signUtil.GetRevision(name));
sigInfo.SetSignatureCoversWholeDocument(signUtil.SignatureCoversWholeDocument(name));
IList <PdfWidgetAnnotation> widgetAnnotationsList = form.GetField(name).GetWidgets();
if (widgetAnnotationsList != null && widgetAnnotationsList.Count > 0)
{
sigInfo.SetSignaturePosition(widgetAnnotationsList[0].GetRectangle().ToRectangle());
}
PdfPKCS7 pkcs7 = signUtil.ReadSignatureData(name);
sigInfo.SetDigestAlgorithm(pkcs7.GetHashAlgorithm());
sigInfo.SetEncryptionAlgorithm(pkcs7.GetEncryptionAlgorithm());
PdfName filterSubtype = pkcs7.GetFilterSubtype();
if (filterSubtype != null)
{
sigInfo.SetFilterSubtype(filterSubtype.ToString());
}
X509Certificate signCert = pkcs7.GetSigningCertificate();
sigInfo.SetSignerName(iText.Signatures.CertificateInfo.GetSubjectFields(signCert).GetField("CN"));
sigInfo.SetAlternativeSignerName(pkcs7.GetSignName());
sigInfo.SetSignDate(pkcs7.GetSignDate().ToUniversalTime());
if (TimestampConstants.UNDEFINED_TIMESTAMP_DATE != pkcs7.GetTimeStampDate())
{
sigInfo.SetTimeStamp(pkcs7.GetTimeStampDate().ToUniversalTime());
TimeStampToken ts = pkcs7.GetTimeStampToken();
sigInfo.SetTimeStampService(ts.TimeStampInfo.Tsa.ToString());
}
sigInfo.SetLocation(pkcs7.GetLocation());
sigInfo.SetReason(pkcs7.GetReason());
PdfDictionary sigDict = signUtil.GetSignatureDictionary(name);
PdfString contactInfo = sigDict.GetAsString(PdfName.ContactInfo);
if (contactInfo != null)
{
sigInfo.SetContactInfo(contactInfo.ToString());
}
perms = new SignaturePermissions(sigDict, perms);
sigInfo.SetIsCertifiaction(perms.IsCertification());
sigInfo.SetIsFieldsFillAllowed(perms.IsFillInAllowed());
sigInfo.SetIsAddingAnnotationsAllowed(perms.IsAnnotationsAllowed());
IList <String> fieldLocks = new List <String>();
foreach (SignaturePermissions.FieldLock Lock in perms.GetFieldLocks())
{
fieldLocks.Add(Lock.ToString());
}
sigInfo.SetFieldsLocks(fieldLocks);
X509Certificate[] certs = pkcs7.GetSignCertificateChain();
IList <CertificateInfo> certInfos = new List <CertificateInfo>();
for (int i = 0; i < certs.Length; i++)
{
X509Certificate cert = (X509Certificate)certs[i];
CertificateInfo certInfo = new CertificateInfo();
certInfo.SetIssuer(cert.IssuerDN);
certInfo.SetSubject(cert.SubjectDN);
certInfo.SetValidFrom(cert.NotBefore);
certInfo.SetValidTo(cert.NotAfter);
certInfos.Add(certInfo);
}
sigInfo.SetCertificateInfos(certInfos);
signInfos.Add(sigInfo);
}
docInfo.SetSignatureInfos(signInfos);
return(docInfo);
}