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

Introduction

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

Prototype

public PdfReader(final PdfReader reader) 

Source Link

Document

Creates an independent duplicate.

Usage

From source file:org.opencps.pki.PdfVerifier.java

License:Open Source License

/**
 * (non-Javadoc)//from ww  w .  ja v a 2  s. c o  m
 * @throws SignatureException 
 * @see org.opencps.pki.Verifier#verifySignature()
 */
public Boolean verifySignature(InputStream inputStream, KeyStore ks) throws SignatureException {
    Boolean verified = false;
    try {
        PdfReader reader = new PdfReader(inputStream);
        AcroFields fields = reader.getAcroFields();
        ArrayList<String> names = fields.getSignatureNames();
        for (String name : names) {
            PdfPKCS7 pkcs7 = fields.verifySignature(name);
            if (pkcs7.verify()) {
                Certificate[] certs = pkcs7.getSignCertificateChain();
                Calendar cal = pkcs7.getSignDate();
                List<VerificationException> errors = CertificateVerification.verifyCertificates(certs, ks, cal);
                if (errors.size() == 0) {
                    X509Certificate signCert = (X509Certificate) certs[0];
                    X509Certificate issuerCert = (certs.length > 1 ? (X509Certificate) certs[1] : null);
                    verified = checkSignatureRevocation(pkcs7, signCert, issuerCert, cal.getTime())
                            && checkSignatureRevocation(pkcs7, signCert, issuerCert, new Date());
                }
            }
        }
        reader.close();
    } catch (Exception e) {
        throw new SignatureException(e.getMessage(), e);
    }
    return verified;
}

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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 w  w. j  a v  a2  s . c  o  m*/
            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());//ww  w.  ja v a 2  s. 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 void runDigitalSignatureStrip(Path input, Path output) throws IOException, DocumentException {
    PdfReader reader = new PdfReader(input.toString());
    PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(output.toString()));
    stamper.setFormFlattening(true);//from w ww  .ja  va2  s .  co m
    stamper.close();
    reader.close();
}

---

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

public static Path runDigitalSignatureSign(Path input, String keystore, String alias, String password,
        String reason, String location, String contact)
        throws IOException, GeneralSecurityException, DocumentException {

    Security.addProvider(new BouncyCastleProvider());
    Path signedPDF = Files.createTempFile("signed", ".pdf");

    KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
    InputStream is = new FileInputStream(keystore);
    ks.load(is, password.toCharArray());
    PrivateKey pk = (PrivateKey) ks.getKey(alias, password.toCharArray());
    Certificate[] chain = ks.getCertificateChain(alias);
    IOUtils.closeQuietly(is);/* w  ww . j  av a  2 s .  c  o  m*/

    PdfReader reader = new PdfReader(input.toString());
    FileOutputStream os = new FileOutputStream(signedPDF.toFile());
    PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0');
    PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
    appearance.setReason(reason);
    appearance.setLocation(location);
    appearance.setContact(contact);
    appearance.setVisibleSignature(new Rectangle(36, 748, 144, 780), 1, "RODASignature");
    ExternalDigest digest = new BouncyCastleDigest();
    ExternalSignature signature = new PrivateKeySignature(pk, DigestAlgorithms.SHA256, "BC");
    MakeSignature.signDetached(appearance, digest, signature, chain, null, null, null, 0, null);
    IOUtils.closeQuietly(os);
    reader.close();

    return signedPDF;
}

---

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

public static int countSignaturesPDF(Path file) {
    int counter = -1;
    try {//from www. ja va  2 s.  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 {/*www.j a v  a2 s. c o m*/
            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());//from ww  w  .  j  a va  2s.  c  om
        out.println("</signatures>");
    }

    reader.close();

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

---

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

public static Path runDigitalSignatureSign(Path input, String keystore, String alias, String password,
        String reason, String location, String contact)
        throws IOException, GeneralSecurityException, DocumentException {

    Security.addProvider(new BouncyCastleProvider());
    Path signedPDF = Files.createTempFile("signed", ".pdf");

    KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());

    try (InputStream is = new FileInputStream(keystore)) {
        ks.load(is, password.toCharArray());

        PrivateKey pk = (PrivateKey) ks.getKey(alias, password.toCharArray());
        Certificate[] chain = ks.getCertificateChain(alias);

        try (FileOutputStream os = new FileOutputStream(signedPDF.toFile())) {
            PdfReader reader = new PdfReader(input.toString());
            PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0');
            PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
            appearance.setReason(reason);
            appearance.setLocation(location);
            appearance.setContact(contact);
            appearance.setVisibleSignature(new Rectangle(36, 748, 144, 780), 1, "RODASignature");
            ExternalDigest digest = new BouncyCastleDigest();
            ExternalSignature signature = new PrivateKeySignature(pk, DigestAlgorithms.SHA256, "BC");
            MakeSignature.signDetached(appearance, digest, signature, chain, null, null, null, 0, null);
            reader.close();//from   www  .j a v a  2 s . c  o  m
        }
    }

    return signedPDF;
}

---

From source file:org.sinarproject.ecparser.ECRedelineation.java

/**
 * @param args the command line arguments
 *///from  ww  w .  j ava  2  s. c o  m
public static void main(String[] args) {
    out.println("Sinar Project's EC Parser ..");
    PdfReader reader;
    reader = null;
    try {
        reader = new PdfReader(SOURCE);
    } catch (IOException ex) {
        Logger.getLogger(ECRedelineation.class.getName()).log(Level.SEVERE, null, ex);
    }
    // Assign it for later reuse ..
    ECRedelineation.my_reader = reader;
    ECRedelineation.ec_filename = "Sarawak_Proposal";
    processECStructure("json");
}

---

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