Example usage for com.itextpdf.text.pdf AcroFields getTotalRevisions

List of usage examples for com.itextpdf.text.pdf AcroFields getTotalRevisions

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Introduction

In this page you can find the example usage for com.itextpdf.text.pdf AcroFields getTotalRevisions.

Prototype

public int getTotalRevisions()

Source Link

Document

Gets the total number of revisions this document has.

Usage

From source file:controller.CCInstance.java

License:Open Source License

public final ArrayList<SignatureValidation> validatePDF(final String file, final ValidationListener vl)
        throws IOException, DocumentException, GeneralSecurityException {
    this.validating = true;

    final PdfReader reader = new PdfReader(file);
    final AcroFields af = reader.getAcroFields();
    final ArrayList names = af.getSignatureNames();
    final ArrayList<SignatureValidation> validateList = new ArrayList<>();
    X509Certificate x509c = null;

    Security.setProperty("ocsp.enable", "true");
    System.setProperty("com.sun.security.enableCRLDP", "true");

    boolean nextValid = true;

    for (Object o : names) {
        if (!validating) {
            return null;
        }//from w  ww .jav a  2s. c  om

        final String name = (String) o;
        final PdfPKCS7 pk = af.verifySignature(name, "BC");
        final Certificate pkc[] = pk.getCertificates();
        x509c = (X509Certificate) pkc[pkc.length - 1];

        final Certificate[] aL = pkc;//getCompleteCertificateChain(x509c);

        if (null == aL || 0 == aL.length) {
            return null;
        }

        CertificateStatus ocspCertificateStatus = CertificateStatus.UNCHECKED;

        BasicOCSPResp ocspResp = pk.getOcsp();
        if (null != ocspResp && pk.isRevocationValid()) {
            for (SingleResp singleResp : ocspResp.getResponses()) {
                if (null == singleResp.getCertStatus()) {
                    ocspCertificateStatus = CertificateStatus.OK;
                } else if (singleResp.getCertStatus() instanceof RevokedStatus) {
                    if (ocspResp.getProducedAt()
                            .before(((RevokedStatus) singleResp.getCertStatus()).getRevocationTime())) {
                        ocspCertificateStatus = CertificateStatus.OK;
                    } else {
                        ocspCertificateStatus = CertificateStatus.REVOKED;
                    }
                } else if (singleResp.getCertStatus() instanceof UnknownStatus) {
                    ocspCertificateStatus = CertificateStatus.UNKNOWN;
                }
            }
        }

        CertificateStatus crlCertificateStatus = CertificateStatus.UNCHECKED;
        Collection<CRL> crlResp = pk.getCRLs();
        if (null != crlResp) {
            boolean revoked = false;
            for (CRL crl : crlResp) {
                if (crl.isRevoked(x509c)) {
                    revoked = true;
                }
            }
            crlCertificateStatus = revoked ? CertificateStatus.REVOKED : CertificateStatus.OK;
        }

        if (ocspCertificateStatus.equals(CertificateStatus.UNCHECKED)
                && crlCertificateStatus.equals(CertificateStatus.UNCHECKED)) {
            if (pkc.length == 1) {
                Certificate[] completeChain = getCompleteTrustedCertificateChain(x509c);
                if (completeChain.length == 1) {
                    ocspCertificateStatus = CertificateStatus.UNCHAINED;
                } else {
                    ocspCertificateStatus = CertificateStatus.CHAINED_LOCALLY;
                }
            }
        }

        final TimeStampToken tst = pk.getTimeStampToken();
        boolean validTimestamp = false;
        if (null != tst) {
            final boolean hasTimestamp = pk.verifyTimestampImprint();
            validTimestamp = hasTimestamp && CertificateVerification.verifyTimestampCertificates(tst, ks, null);
        }

        PdfDictionary pdfDic = reader.getAcroFields().getSignatureDictionary(name);
        SignaturePermissions sp = new SignaturePermissions(pdfDic, null);

        boolean isValid;
        if (nextValid) {
            isValid = pk.verify();
        } else {
            isValid = false;
        }

        List<AcroFields.FieldPosition> posList = af.getFieldPositions(name);
        final SignatureValidation signature = new SignatureValidation(file, name, pk, !pk.verify(),
                af.signatureCoversWholeDocument(name), af.getRevision(name), af.getTotalRevisions(),
                reader.getCertificationLevel(), ocspCertificateStatus, crlCertificateStatus, validTimestamp,
                posList, sp, isValid);
        validateList.add(signature);

        if (null != vl) {
            vl.onValidationComplete(signature);
        }
        if (!sp.isFillInAllowed()) {
            nextValid = false;
        }
    }
    return validateList;
}

From source file:cz.hobrasoft.pdfmu.operation.OperationInspect.java

License:Open Source License

private SignatureDisplay display(AcroFields fields) {
    SignatureDisplay result = new SignatureDisplay();

    // digitalsignatures20130304.pdf : Code sample 5.1
    ArrayList<String> names = fields.getSignatureNames();

    // Print number of signatures
    to.println(String.format("Number of signatures: %d", names.size()));
    to.println(String.format("Number of document revisions: %d", fields.getTotalRevisions()));
    result.nRevisions = fields.getTotalRevisions();

    List<Signature> signatures = new ArrayList<>();

    for (String name : names) {
        to.println(String.format("Signature field name: %s", name));

        to.indentMore();//from   w ww  .  j  a v a 2 s  . com
        Signature signature;
        try {
            signature = display(fields, name); // May throw OperationException
        } finally {
            to.indentLess();
        }
        signature.id = name;
        signatures.add(signature);
    }

    result.signatures = signatures;

    return result;
}

From source file:cz.hobrasoft.pdfmu.operation.OperationInspect.java

License:Open Source License

private Signature display(AcroFields fields, String name) {
    // digitalsignatures20130304.pdf : Code sample 5.2
    to.println(String.format("Signature covers the whole document: %s",
            (fields.signatureCoversWholeDocument(name) ? "Yes" : "No")));
    to.println(/*from  w ww  .j  ava 2  s . com*/
            String.format("Document revision: %d of %d", fields.getRevision(name), fields.getTotalRevisions()));

    PdfPKCS7 pkcs7 = fields.verifySignature(name);
    Signature signature = display(pkcs7);
    signature.coversWholeDocument = fields.signatureCoversWholeDocument(name);
    signature.revision = fields.getRevision(name);
    return signature;
}

From source file:ec.rubrica.pdf.FirmaPDF.java

License:Open Source License

/**
 * TODO: Mas de dos firmas?//from ww  w .j  av  a2  s  .c o m
 * 
 * @param pdf
 * @throws IOException
 * @throws SignatureException
 */
public static boolean verificar(byte[] pdf) throws IOException, SignatureException {

    PdfReader reader = new PdfReader(pdf);
    AcroFields af = reader.getAcroFields();
    ArrayList<String> names = af.getSignatureNames();

    for (int k = 0; k < names.size(); ++k) {
        String name = (String) names.get(k);
        System.out.println("Signature name: " + name);
        System.out.println("Signature covers whole document: " + af.signatureCoversWholeDocument(name));
        System.out.println("Document revision: " + af.getRevision(name) + " of " + af.getTotalRevisions());

        PdfPKCS7 pk = af.verifySignature(name);
        Calendar cal = pk.getSignDate();
        Certificate[] pkc = pk.getCertificates();
        TimeStampToken ts = pk.getTimeStampToken();

        if (ts != null) {
            cal = pk.getTimeStampDate();
        }

        if (!pk.isTsp() && ts != null) {
            boolean impr;
            try {
                impr = pk.verifyTimestampImprint();
                System.out.println("Timestamp imprint verifies: " + impr);
                System.out.println("Timestamp date: " + cal);
            } catch (NoSuchAlgorithmException e) {
                throw new SignatureException(e);
            }
        }

        System.out.println("Subject: " + CertificateInfo.getSubjectFields(pk.getSigningCertificate()));
        System.out.println("Document modified: " + !pk.verify());

        KeyStore kall = KeyStoreUtil.loadCacertsKeyStore();

        Object fails[] = CertificateVerification.verifyCertificates(pkc, kall, null, cal);

        if (fails == null) {
            System.out.println("Certificates verified against the KeyStore");
        } else {
            System.out.println("Certificate failed: " + fails[0]);
            return false;
        }

        BasicOCSPResp ocsp = pk.getOcsp();

        if (ocsp != null) {
            try {
                X509Certificate cert = new SecurityDataSubCaCert();

                boolean verifies = ocsp.isSignatureValid(new JcaContentVerifierProviderBuilder()
                        .setProvider(BouncyCastleProvider.PROVIDER_NAME).build(cert.getPublicKey()));

                System.out.println("OCSP signature verifies: " + verifies);

                System.out.println("OCSP revocation refers to this certificate: " + pk.isRevocationValid());

                return verifies;
            } catch (OperatorCreationException e) {
                throw new SignatureException(e);
            } catch (OCSPException e) {
                throw new SignatureException(e);
            }
        } else {
            return true;
        }
    }

    return false;
}

From source file:org.dihedron.crypto.operations.verify.pdf.PDFVerifier.java

License:Open Source License

@Override
public boolean verify(byte[] signed, byte[] data) throws CryptoException {
    boolean verified = false;
    try {//  www  .  j a v  a 2  s  .  c o  m
        PdfReader reader = new PdfReader(signed);
        AcroFields af = reader.getAcroFields();
        ArrayList<String> names = af.getSignatureNames();
        for (String name : names) {
            logger.debug("signature name: {}", name);
            logger.debug("signature covers whole document: {}", af.signatureCoversWholeDocument(name));
            logger.debug("document revision: {} of {}", af.getRevision(name), af.getTotalRevisions());
            PdfPKCS7 pk = af.verifySignature(name);
            Calendar cal = pk.getSignDate();
            Certificate[] pkc = pk.getCertificates();
            logger.debug("subject: {}", PdfPKCS7.getSubjectFields(pk.getSigningCertificate()));
            logger.debug("revision modified: {}", !pk.verify());
            Object fails[] = PdfPKCS7.verifyCertificates(pkc, keyring.getKeyStore(), null, cal);
            if (fails == null) {
                logger.debug("certificates verified against the KeyStoreHelper");
                verified = true;
            } else {
                logger.warn("certificate failed: {}", fails[1]);
                verified = false;
            }
        }
    } catch (IOException e) {
        throw new CryptoException("I/O exception while verifying the signature", e);
    } catch (SignatureException e) {
        throw new CryptoException("Signature exception while verifying the signature", e);
    }
    return verified;
}