List of usage examples for com.itextpdf.text.pdf PdfDate toUnicodeString
public String toUnicodeString()
String value of this PdfString-object. From source file:org.sinekartads.core.pdf.PDFTools.java
License:Open Source License
public static DigestSignature<SignatureType.SignCategory, SignDisposition.PDF, SecurityLevel.VerifyResult, PDFSignatureInfo> calculateFingerPrint( ChainSignature<SignatureType.SignCategory, SignDisposition.PDF, SecurityLevel.VerifyResult, PDFSignatureInfo> chainSignature, // X509Certificate certificate, InputStream is) throws SignatureException { // calculateFingerPrint(doc, certificate, is, null, null, null, null, null); // }/*from w ww . j a v a 2 s.c o m*/ // // public static void calculateFingerPrint(DigitalSignatureDocument doc, // X509Certificate certificate, InputStream is, Collection<CrlClient> crlList, OcspClient ocspClient, String tsaUrl, String tsaUser, String tsaPassword) { try { // TSAClient tsaClient=null; // // if (tsaUrl!=null) { // tsaClient = new SinekartaTSAClient(tsaUrl, tsaUser, tsaPassword); // } // int estimatedSize = 0; CryptoStandard sigtype = CryptoStandard.CMS; // FIXME qui c'era CMS PDFSignatureInfo signature = (PDFSignatureInfo) chainSignature; // creo il reader del pdf PdfReader reader = new PdfReader(is); // creo lo stamper (se il pdf e' gia' firmato, controfirma, // altrimenti firma PdfStamper stamper = null; if (isPdfSigned(reader)) { if (tracer.isDebugEnabled()) tracer.debug("calculating finger print for document already signed"); stamper = PdfStamper.createSignature(reader, null, '\0', null, true); } else { if (tracer.isDebugEnabled()) tracer.debug("calculating finger print for document never signed before"); stamper = PdfStamper.createSignature(reader, null, '\0'); } // questo e' il certificato su cui lavorare Certificate[] chain = signature.getRawX509Certificates(); // Certificate[] chain = new Certificate[1]; // chain[0] = certificate; // creo la signature apparence PdfSignatureAppearance sap = stamper.getSignatureAppearance(); ExternalDigest externalDigest = new BouncyCastleDigest(); // inizio codice copiato da MakeSignature // Collection<byte[]> crlBytes = null; // int i = 0; // while (crlBytes == null && i < chain.length) // crlBytes = MakeSignature.processCrl(chain[i++], crlList); if (estimatedSize == 0) { estimatedSize = 8192; // if (crlBytes != null) { // for (byte[] element : crlBytes) { // estimatedSize += element.length + 10; // } // } // if (ocspClient != null) estimatedSize += 4192; // if (tsaClient != null) estimatedSize += 4192; } Calendar now = Calendar.getInstance(); PdfDate date = new PdfDate(now); sap.setSignDate(now); signature.setSigningTime(now.getTime()); signature.setUnicodeModDate(date.toUnicodeString()); sap.setCertificate(chain[0]); sap.setReason(signature.getReason()); sap.setLocation(signature.getLocation()); PdfSignature dic = new PdfSignature(PdfName.ADOBE_PPKLITE, PdfName.ADBE_PKCS7_DETACHED); dic.setReason(sap.getReason()); dic.setLocation(sap.getLocation()); dic.setContact(sap.getContact()); dic.setDate(date); // time-stamp will over-rule this sap.setCryptoDictionary(dic); HashMap<PdfName, Integer> exc = new HashMap<PdfName, Integer>(); exc.put(PdfName.CONTENTS, new Integer(estimatedSize * 2 + 2)); sap.preClose(exc); String hashAlgorithm = signature.getDigestAlgorithm().getName(); PdfPKCS7 sgn = new PdfPKCS7(null, chain, hashAlgorithm, BouncyCastleProvider.PROVIDER_NAME, externalDigest, false); // String hashAlgorithm = Constants.SHA256; // PdfPKCS7 sgn = new PdfPKCS7(null, chain, hashAlgorithm, Constants.BC, externalDigest, false); InputStream data = sap.getRangeStream(); byte hash[] = DigestAlgorithms.digest(data, externalDigest.getMessageDigest(hashAlgorithm)); // byte[] ocsp = null; // if (chain.length >= 2 && ocspClient != null) { // ocsp = ocspClient.getEncoded((X509Certificate) chain[0], (X509Certificate) chain[1], null); // } // byte[] authenticatedAttributeBytes = sgn.getAuthenticatedAttributeBytes(hash, now, ocsp, crlBytes, sigtype); byte[] authenticatedAttributeBytes = sgn.getAuthenticatedAttributeBytes(hash, now, null, null, sigtype); // calcolo dell'impronta MessageDigest digester = MessageDigest.getInstance(signature.getDigestAlgorithm().getName()); byte[] fingerPrint = digester.digest(authenticatedAttributeBytes); // byte[] fingerPrint = Util.digest256(authenticatedAttributeBytes); signature.setAuthenticatedAttributeBytes(authenticatedAttributeBytes); signature.setFileId(sap.getStamper().getFileId()); // signature.setFileIDByteContent(TextUtil.byteToHex(sap.getStamper().getFileID().getBytes())); signature.setUnicodeModDate(sap.getStamper().getUnicodeModDate()); // signature.setModDateUnicodeString(sap.getStamper().getModDate().toUnicodeString()); signature.setSigningTime(now.getTime()); // SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSSZ"); // signature.setSignDate(sdf.format(now.getTime())); // this should be already done, but ... // closing streams try { is.close(); } catch (IOException e) { tracer.error("error on input stream", e); } return signature.toDigestSignature(DigestInfo.getInstance(signature.getDigestAlgorithm(), fingerPrint)); } catch (Exception e) { tracer.error("Unable to calculate finger print of PDF.", e); // throw new PDFException("Unable calculate finger print of PDF.", e); throw new SignatureException("Unable calculate finger print of PDF.", e); } }