Example usage for com.itextpdf.text.pdf PdfReader getAcroFields

List of usage examples for com.itextpdf.text.pdf PdfReader getAcroFields

  1. HOME
  2. Java
  3. com.itextpdf
  4. com.itextpdf.text.pdf.*
  5. PdfReader
  6. getAcroFields

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfReader getAcroFields.

Prototype

public AcroFields getAcroFields()

Source Link

Document

Gets a read-only version of AcroFields.

Usage

From source file:org.roda.common.certification.PDFSignatureUtils.java

public static String runDigitalSignatureVerify(Path input) throws IOException, GeneralSecurityException {
    Security.addProvider(new BouncyCastleProvider());

    PdfReader reader = new PdfReader(input.toString());
    AcroFields fields = reader.getAcroFields();
    ArrayList<String> names = fields.getSignatureNames();
    String result = "Passed";

    for (int i = 0; i < names.size(); i++) {
        String name = names.get(i);

        try {/*  w ww  .j  a  v a  2 s  . c  om*/
            PdfPKCS7 pk = fields.verifySignature(name);
            X509Certificate certificate = pk.getSigningCertificate();
            certificate.checkValidity();

            if (!SignatureUtils.isCertificateSelfSigned(certificate)) {

                Set<Certificate> trustedRootCerts = new HashSet<Certificate>();
                Set<Certificate> intermediateCerts = new HashSet<Certificate>();

                for (Certificate c : pk.getSignCertificateChain()) {
                    X509Certificate cert = (X509Certificate) c;
                    cert.checkValidity();

                    if (SignatureUtils.isCertificateSelfSigned(c))
                        trustedRootCerts.add(c);
                    else
                        intermediateCerts.add(c);
                }

                SignatureUtils.verifyCertificateChain(trustedRootCerts, intermediateCerts, certificate);
                if (pk.getCRLs() != null) {
                    for (CRL crl : pk.getCRLs()) {
                        if (crl.isRevoked(certificate)) {
                            result = "Signing certificate is included on a Certificate Revocation List";
                        }
                    }
                }
            }
        } catch (NoSuchFieldError e) {
            result = "Missing signature timestamp field";
        } catch (CertificateExpiredException e) {
            result = "Contains expired certificates";
        } catch (CertificateNotYetValidException e) {
            result = "Contains certificates not yet valid";
        }
    }

    reader.close();
    return result;
}

From source file:org.roda.common.certification.PDFSignatureUtils.java

public static List<Path> runDigitalSignatureExtract(Path input) throws SignatureException, IOException {
    Security.addProvider(new BouncyCastleProvider());

    List<Path> paths = new ArrayList<Path>();
    Path output = Files.createTempFile("extraction", ".xml");
    Path outputContents = Files.createTempFile("contents", ".pkcs7");
    PdfReader reader = new PdfReader(input.toString());
    AcroFields fields = reader.getAcroFields();
    ArrayList<?> names = fields.getSignatureNames();
    String filename = input.getFileName().toString();
    filename = filename.substring(0, filename.lastIndexOf('.'));

    if (names.isEmpty())
        return paths;

    StringBuilder sb = getExtractionInformation(fields, names, outputContents, filename);

    FileOutputStream fos = new FileOutputStream(output.toString());
    OutputStreamWriter osw = new OutputStreamWriter(fos);
    PrintWriter out = new PrintWriter(osw, true);

    out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
    out.println("<signatures>");
    out.println(sb.toString());/*from   w  ww. j a va 2s  .  co m*/
    out.println("</signatures>");

    IOUtils.closeQuietly(out);
    IOUtils.closeQuietly(osw);
    IOUtils.closeQuietly(fos);
    reader.close();

    paths.add(output);
    paths.add(outputContents);
    return paths;
}

From source file:org.roda.common.certification.PDFSignatureUtils.java

public static int countSignaturesPDF(Path file) {
    int counter = -1;
    try {// ww w  . j  a  va2s  .  c  o  m
        PdfReader reader = new PdfReader(file.toAbsolutePath().toString());
        AcroFields af = reader.getAcroFields();
        ArrayList<String> names = af.getSignatureNames();
        counter = names.size();
    } catch (IOException e) {
        LOGGER.error("Error getting path of file {}", e.getMessage());
    }
    return counter;
}

From source file:org.roda.core.plugins.plugins.characterization.PDFSignatureUtils.java

public static String runDigitalSignatureVerify(Path input) throws IOException, GeneralSecurityException {
    Security.addProvider(new BouncyCastleProvider());

    PdfReader reader = new PdfReader(input.toString());
    AcroFields fields = reader.getAcroFields();
    ArrayList<String> names = fields.getSignatureNames();
    String result = "Passed";

    for (int i = 0; i < names.size(); i++) {
        String name = names.get(i);

        try {/*  w  w  w  .  ja  v a  2 s .c  om*/
            PdfPKCS7 pk = fields.verifySignature(name);
            X509Certificate certificate = pk.getSigningCertificate();
            certificate.checkValidity();

            if (!SignatureUtils.isCertificateSelfSigned(certificate)) {

                Set<Certificate> trustedRootCerts = new HashSet<>();
                Set<Certificate> intermediateCerts = new HashSet<>();

                for (Certificate c : pk.getSignCertificateChain()) {
                    X509Certificate cert = (X509Certificate) c;
                    cert.checkValidity();

                    if (SignatureUtils.isCertificateSelfSigned(c))
                        trustedRootCerts.add(c);
                    else
                        intermediateCerts.add(c);
                }

                SignatureUtils.verifyCertificateChain(trustedRootCerts, intermediateCerts, certificate);
                if (pk.getCRLs() != null) {
                    for (CRL crl : pk.getCRLs()) {
                        if (crl.isRevoked(certificate)) {
                            result = "Signing certificate is included on a Certificate Revocation List";
                        }
                    }
                }
            }
        } catch (NoSuchFieldError e) {
            result = "Missing signature timestamp field";
        } catch (CertificateExpiredException e) {
            result = "Contains expired certificates";
        } catch (CertificateNotYetValidException e) {
            result = "Contains certificates not yet valid";
        }
    }

    reader.close();
    return result;
}

From source file:org.roda.core.plugins.plugins.characterization.PDFSignatureUtils.java

public static List<Path> runDigitalSignatureExtract(Path input) throws SignatureException, IOException {
    Security.addProvider(new BouncyCastleProvider());

    List<Path> paths = new ArrayList<>();
    Path output = Files.createTempFile("extraction", ".xml");
    Path outputContents = Files.createTempFile("contents", ".pkcs7");
    PdfReader reader = new PdfReader(input.toString());
    AcroFields fields = reader.getAcroFields();
    ArrayList<?> names = fields.getSignatureNames();
    String filename = input.getFileName().toString();
    filename = filename.substring(0, filename.lastIndexOf('.'));

    if (names.isEmpty())
        return paths;

    StringBuilder sb = getExtractionInformation(fields, names, outputContents, filename);

    FileOutputStream fos = new FileOutputStream(output.toString());
    OutputStreamWriter osw = new OutputStreamWriter(fos);
    try (PrintWriter out = new PrintWriter(osw, true)) {
        out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        out.println("<signatures>");
        out.println(sb.toString());/* w ww  . ja va 2 s. c om*/
        out.println("</signatures>");
    }

    reader.close();

    paths.add(output);
    paths.add(outputContents);
    return paths;
}

From source file:org.sinekartads.core.pdf.PDFTools.java

License:Open Source License

/**
 * metodo di utilita' che verifica se il pdf in input e' gia' firmato
 * /*from   www.j  a  v  a2s  . c  o  m*/
 * @param reader
 * @return
 * @throws SignatureException 
 */
public static boolean isPdfSigned(PdfReader reader) throws SignatureException {
    if (tracer.isDebugEnabled())
        tracer.debug("chacking if PDF/A is signed");
    try {
        AcroFields af = reader.getAcroFields();

        // Search of the whole signature
        ArrayList<String> names = af.getSignatureNames();

        // For every signature :
        if (names.size() > 0) {
            if (tracer.isDebugEnabled())
                tracer.debug("yes, it is");
            return true;
        } else {
            if (tracer.isDebugEnabled())
                tracer.debug("no, it isn't");
            return false;
        }
    } catch (Exception e) {
        tracer.error("Unable to read PDF. Unable to check if the pdf is signed.", e);
        throw new SignatureException("Unable to read PDF. Unable to check if the pdf is signed.", e);
    }
}

From source file:org.sinekartapdfa.alfresco.utils.PDFTools.java

License:Open Source License

/**
 * metodo di utilita' che verifica se il pdf in input e' gia' firmato
 * //from   www .j  a va 2  s. c  o m
 * @param reader
 * @return
 */
public static boolean isPdfSigned(PdfReader reader) {
    if (tracer.isDebugEnabled())
        tracer.debug("chacking if PDF/A is signed");
    try {
        AcroFields af = reader.getAcroFields();

        // Search of the whole signature
        ArrayList<String> names = af.getSignatureNames();

        // For every signature :
        if (names.size() > 0) {
            if (tracer.isDebugEnabled())
                tracer.debug("yes, it is");
            return true;
        } else {
            if (tracer.isDebugEnabled())
                tracer.debug("no, it isn't");
            return false;
        }
    } catch (Exception e) {
        tracer.error("Unable to read PDF. Unable to check if the pdf is signed.", e);
        throw new PDFException("Unable to read PDF. Unable to check if the pdf is signed.", e);
    }
}

From source file:pdfupdate.PdfUpdate.java

public void readXml(String src, String dest) throws IOException, DocumentException, TransformerException {
    PdfReader reader = new PdfReader(src);
    AcroFields form = reader.getAcroFields();
    XfaForm xfa = form.getXfa();//from  www .  j ava 2s.c o m
    Node node = xfa.getDatasetsNode();
    NodeList list = node.getChildNodes();
    for (int i = 0; i < list.getLength(); i++) {
        if ("data".equals(list.item(i).getLocalName())) {
            node = list.item(i);
            break;
        }
    }
    list = node.getChildNodes();
    for (int i = 0; i < list.getLength(); i++) {
        if ("movies".equals(list.item(i).getLocalName())) {
            node = list.item(i);
            break;
        }
    }
    Transformer tf = TransformerFactory.newInstance().newTransformer();
    tf.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
    tf.setOutputProperty(OutputKeys.INDENT, "yes");
    FileOutputStream os = new FileOutputStream(dest);
    tf.transform(new DOMSource(node), new StreamResult(os));
    reader.close();
}