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DSS Service Provider Interface contains the contract interface shared between the applet and the server-side of DSS.
/**
* DSS - Digital Signature Services
* Copyright (C) 2015 European Commission, provided under the CEF programme
*
* This file is part of the "DSS - Digital Signature Services" project.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package eu.europa.esig.dss;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;
import java.nio.ByteBuffer;
import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Provider;
import java.security.Security;
import java.security.cert.CRLException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509CRL;
import java.security.cert.X509Certificate;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TimeZone;
import java.util.concurrent.TimeUnit;
import javax.security.auth.x500.X500Principal;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.openssl.jcajce.JcaMiscPEMGenerator;
import org.bouncycastle.util.io.pem.PemObject;
import org.bouncycastle.util.io.pem.PemReader;
import org.bouncycastle.util.io.pem.PemWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import eu.europa.esig.dss.client.http.DataLoader;
import eu.europa.esig.dss.utils.Utils;
import eu.europa.esig.dss.x509.CertificateToken;
public final class DSSUtils {
private static final Logger LOG = LoggerFactory.getLogger(DSSUtils.class);
private static final BouncyCastleProvider securityProvider = new BouncyCastleProvider();
private static final CertificateFactory certificateFactory;
public static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd'T'HH:mm:ss'Z'";
/**
* The default date pattern: "yyyy-MM-dd"
*/
public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd";
static {
try {
Security.addProvider(securityProvider);
certificateFactory = CertificateFactory.getInstance("X.509", BouncyCastleProvider.PROVIDER_NAME);
} catch (CertificateException e) {
LOG.error(e.getMessage(), e);
throw new DSSException("Platform does not support X509 certificate", e);
} catch (NoSuchProviderException e) {
LOG.error(e.getMessage(), e);
throw new DSSException("Platform does not support BouncyCastle", e);
}
}
/**
* This class is an utility class and cannot be instantiated.
*/
private DSSUtils() {
}
/**
* Formats a date to use for internal purposes (logging, toString)
*
* @param date
* the date to be converted
* @return the textual representation (a null date will result in "N/A")
*/
public static String formatInternal(final Date date) {
final String formatedDate = (date == null) ? "N/A" : new SimpleDateFormat(DEFAULT_DATE_TIME_FORMAT).format(date);
return formatedDate;
}
/**
* Converts an array of bytes into a String representing the hexadecimal values of each byte in order. The returned
* String will be double the length of the passed array, as it takes two characters to represent any given byte. If
* the input array is null then null is returned. The obtained string is converted to uppercase.
*
* @param value
* @return
*/
public static String toHex(final byte[] value) {
return (value != null) ? Utils.toHex(value) : null;
}
/**
* Converts a hexadecimal character to an integer.
*
* @param ch
* A character to convert to an integer digit
* @param index
* The index of the character in the source
* @return An integer
* @throws DSSException
* Thrown if ch is an illegal hex character
*/
protected static int toDigit(char ch, int index) throws DSSException {
int digit = Character.digit(ch, 16);
if (digit == -1) {
throw new DSSException("Illegal hexadecimal character " + ch + " at index " + index);
}
return digit;
}
/**
* This method replaces all \ to /.
*
* @param path
* @return
*/
private static String normalisePath(String path) {
return path.replace('\\', '/');
}
/**
* This method checks if the resource with the given path exists.
*
* @param path
* @return
*/
public static boolean resourceExists(final String path) {
final String path_ = normalisePath(path);
final URL url = DSSUtils.class.getResource(path_);
return url != null;
}
/**
* This method checks if the file with the given path exists.
*
* @param path
* @return
*/
public static boolean fileExists(final String path) {
final String path_ = normalisePath(path);
final boolean exists = new File(path_).exists();
return exists;
}
/**
* This method returns a file reference. The file path is normalised (OS independent)
*
* @param filePath
* The path to the file.
* @return
*/
public static File getFile(final String filePath) {
final String normalisedFolderFileName = normalisePath(filePath);
final File file = new File(normalisedFolderFileName);
return file;
}
/**
* This method converts the given certificate into its PEM string.
*
* @param cert
* the token to be converted to PEM
* @return PEM encoded certificate
* @throws DSSException
*/
public static String convertToPEM(final CertificateToken cert) throws DSSException {
return convertToPEM(cert.getCertificate());
}
/**
* This method converts the given CRL into its PEM string.
*
* @param crl
* the DER encoded CRL to be converted
*
* @return the PEM encoded CRL
*/
public static String convertCrlToPEM(final X509CRL crl) throws DSSException {
return convertToPEM(crl);
}
private static String convertToPEM(Object obj) throws DSSException {
try (StringWriter out = new StringWriter(); PemWriter pemWriter = new PemWriter(out)) {
pemWriter.writeObject(new JcaMiscPEMGenerator(obj));
pemWriter.flush();
return out.toString();
} catch (Exception e) {
throw new DSSException("Unable to convert DER to PEM", e);
}
}
/**
* This method returns true if the inputStream contains a DER encoded item
*
* @return true if DER encoded
*/
public static boolean isDER(InputStream is) {
byte firstByte = readFirstByte(new InMemoryDocument(is));
return DSSASN1Utils.isASN1SequenceTag(firstByte);
}
/**
* This method converts a PEM encoded certificate/crl/... to DER encoded
*
* @param pemContent
* the String which contains the PEM encoded object
* @return the binaries of the DER encoded object
*/
public static byte[] convertToDER(String pemContent) {
try (Reader reader = new StringReader(pemContent); PemReader pemReader = new PemReader(reader)) {
PemObject readPemObject = pemReader.readPemObject();
return readPemObject.getContent();
} catch (IOException e) {
throw new DSSException("Unable to convert PEM to DER", e);
}
}
/**
* This method loads a certificate from the given resource. The certificate must be DER-encoded and may be supplied
* in binary or printable
* (Base64) encoding. If the certificate is provided in Base64 encoding, it must be bounded at the beginning by
* -----BEGIN CERTIFICATE-----, and
* must be bounded at the end by -----END CERTIFICATE-----. It throws an {@code DSSException} or return {@code null}
* when the
* certificate cannot be loaded.
*
* @param path
* resource location.
* @return
*/
public static CertificateToken loadCertificate(final String path) throws DSSException {
final InputStream inputStream = DSSUtils.class.getResourceAsStream(path);
return loadCertificate(inputStream);
}
/**
* This method loads a certificate from the given location. The certificate must be DER-encoded and may be supplied
* in binary or printable
* (Base64) encoding. If the certificate is provided in Base64 encoding, it must be bounded at the beginning by
* -----BEGIN CERTIFICATE-----, and
* must be bounded at the end by -----END CERTIFICATE-----. It throws an {@code DSSException} or return {@code null}
* when the
* certificate cannot be loaded.
*
* @param file
* @return
*/
public static CertificateToken loadCertificate(final File file) throws DSSException {
final InputStream inputStream = DSSUtils.toByteArrayInputStream(file);
final CertificateToken x509Certificate = loadCertificate(inputStream);
return x509Certificate;
}
/**
* This method loads a certificate from the given location. The certificate must be DER-encoded and may be supplied
* in binary or printable (Base64) encoding. If the
* certificate is provided in Base64 encoding, it must be bounded at the beginning by -----BEGIN CERTIFICATE-----,
* and must be bounded at the end by -----END CERTIFICATE-----.
* It throws an {@code DSSException} or return {@code null} when the certificate cannot be loaded.
*
* @param inputStream
* input stream containing the certificate
* @return
*/
public static CertificateToken loadCertificate(final InputStream inputStream) throws DSSException {
List certificates = loadCertificates(inputStream);
if (certificates.size() == 1) {
return certificates.get(0);
}
throw new DSSException("Could not parse certificate");
}
public static Collection loadCertificateFromP7c(InputStream is) {
return loadCertificates(is);
}
private static List loadCertificates(InputStream is) {
final List certificates = new ArrayList();
try {
@SuppressWarnings("unchecked")
final Collection certificatesCollection = (Collection) certificateFactory.generateCertificates(is);
if (certificatesCollection != null) {
for (X509Certificate cert : certificatesCollection) {
certificates.add(new CertificateToken(cert));
}
}
if (certificates.isEmpty()) {
throw new DSSException("Could not parse certificate(s)");
}
return certificates;
} catch (Exception e) {
throw new DSSException(e);
}
}
/**
* This method loads a certificate from the byte array. The certificate must be DER-encoded and may be supplied in
* binary or printable
* (Base64) encoding. If the certificate is provided in Base64 encoding, it must be bounded at the beginning by
* -----BEGIN CERTIFICATE-----, and
* must be bounded at the end by -----END CERTIFICATE-----. It throws an {@code DSSException} or return {@code null}
* when the
* certificate cannot be loaded.
*
* @param input
* array of bytes containing the certificate
* @return
*/
public static CertificateToken loadCertificate(final byte[] input) throws DSSException {
if (input == null) {
throw new NullPointerException("X509 certificate");
}
try (ByteArrayInputStream inputStream = new ByteArrayInputStream(input)) {
return loadCertificate(inputStream);
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* This method loads a certificate from a base 64 encoded String
*
* @param base64Encoded
* @return
*/
public static CertificateToken loadCertificateFromBase64EncodedString(final String base64Encoded) {
final byte[] bytes = Utils.fromBase64(base64Encoded);
return loadCertificate(bytes);
}
/**
* This method loads the potential issuer certificate(s) from the given locations (AIA).
*
* @param cert
* certificate for which the issuer(s) should be loaded
* @param loader
* the data loader to use
* @return a list of potential issuers
*/
public static Collection loadPotentialIssuerCertificates(final CertificateToken cert, final DataLoader loader) {
List urls = DSSASN1Utils.getCAAccessLocations(cert);
if (Utils.isCollectionEmpty(urls)) {
LOG.info("There is no AIA extension for certificate download. CA " + cert.getIssuerX500Principal().getName());
return Collections.emptyList();
}
if (loader == null) {
LOG.warn("There is no DataLoader defined to load Certificates from AIA extension (urls : {})", urls);
return Collections.emptyList();
}
for (String url : urls) {
LOG.debug("Loading certificate(s) from {}", url);
byte[] bytes = loader.get(url);
if (Utils.isArrayNotEmpty(bytes)) {
LOG.debug("Base64 content : {}", Utils.toBase64(bytes));
try (InputStream is = new ByteArrayInputStream(bytes)) {
return loadCertificates(is);
} catch (Exception e) {
LOG.warn("Unable to parse certificate(s) from AIA (url: {}) : {}", url, e.getMessage());
}
} else {
LOG.warn("Empty content from {}.", url);
}
}
return Collections.emptyList();
}
/**
* This method loads a CRL from the given location.
*
* @param inputStream
* @return
* @deprecated for performance reasons, the X509CRL object needs to be avoided
*/
@Deprecated
public static X509CRL loadCRL(final InputStream inputStream) {
try {
return (X509CRL) certificateFactory.generateCRL(inputStream);
} catch (CRLException e) {
throw new DSSException(e);
}
}
/**
* This method digests the given string with SHA1 algorithm and encode returned array of bytes as hex string.
*
* @param stringToDigest
* Everything in the name
* @return hex encoded digest value
*/
public static String getSHA1Digest(final String stringToDigest) {
final byte[] digest = getMessageDigest(DigestAlgorithm.SHA1).digest(stringToDigest.getBytes());
return Utils.toHex(digest);
}
/**
* This method allows to digest the data with the given algorithm.
*
* @param digestAlgorithm
* the algorithm to use
* @param data
* the data to digest
* @return digested array of bytes
*/
public static byte[] digest(final DigestAlgorithm digestAlgorithm, final byte[] data) throws DSSException {
final MessageDigest messageDigest = getMessageDigest(digestAlgorithm);
final byte[] digestValue = messageDigest.digest(data);
return digestValue;
}
/**
* @param digestAlgorithm
* @return
* @throws NoSuchAlgorithmException
*/
public static MessageDigest getMessageDigest(final DigestAlgorithm digestAlgorithm) {
try {
final String digestAlgorithmOid = digestAlgorithm.getOid();
final MessageDigest messageDigest = MessageDigest.getInstance(digestAlgorithmOid, BouncyCastleProvider.PROVIDER_NAME);
return messageDigest;
} catch (GeneralSecurityException e) {
throw new DSSException("Digest algorithm '" + digestAlgorithm.getName() + "' error: " + e.getMessage(), e);
}
}
/**
* This method allows to digest the data in the {@code InputStream} with the given algorithm.
*
* @param digestAlgo
* the algorithm to use
* @param inputStream
* the data to digest
* @return digested array of bytes
*/
public static byte[] digest(final DigestAlgorithm digestAlgo, final InputStream inputStream) throws DSSException {
try {
final MessageDigest messageDigest = getMessageDigest(digestAlgo);
final byte[] buffer = new byte[4096];
int count = 0;
while ((count = inputStream.read(buffer)) > 0) {
messageDigest.update(buffer, 0, count);
}
final byte[] digestValue = messageDigest.digest();
return digestValue;
} catch (IOException e) {
throw new DSSException(e);
}
}
public static byte[] digest(DigestAlgorithm digestAlgorithm, DSSDocument document) {
try (InputStream is = document.openStream()) {
return digest(digestAlgorithm, is);
} catch (IOException e) {
throw new DSSException(e);
}
}
public static byte[] digest(DigestAlgorithm digestAlgorithm, byte[]... data) {
final MessageDigest messageDigest = getMessageDigest(digestAlgorithm);
for (final byte[] bytes : data) {
messageDigest.update(bytes);
}
final byte[] digestValue = messageDigest.digest();
return digestValue;
}
/**
* This method returns an {@code InputStream} which needs to be closed, based on {@code FileInputStream}.
*
* @param filePath
* The path to the file to read
* @return an {@code InputStream} materialized by a {@code FileInputStream} representing the contents of the file
* @throws DSSException
*/
public static InputStream toInputStream(final String filePath) throws DSSException {
final File file = getFile(filePath);
final InputStream inputStream = toInputStream(file);
return inputStream;
}
/**
* This method returns an {@code InputStream} which needs to be closed, based on {@code FileInputStream}.
*
* @param file
* {@code File} to read.
* @return an {@code InputStream} materialized by a {@code FileInputStream} representing the contents of the file
* @throws DSSException
*/
public static InputStream toInputStream(final File file) throws DSSException {
if (file == null) {
throw new NullPointerException();
}
try {
final FileInputStream fileInputStream = openInputStream(file);
return fileInputStream;
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* This method returns the {@code InputStream} based on the given {@code String} and char set. This stream does not
* need to be closed, it is based on {@code ByteArrayInputStream}.
*
* @param string
* {@code String} to convert
* @param charset
* char set to use
* @return the {@code InputStream} based on {@code ByteArrayInputStream}
*/
public static InputStream toInputStream(final String string, final String charset) throws DSSException {
try {
final InputStream inputStream = new ByteArrayInputStream(string.getBytes(charset));
return inputStream;
} catch (UnsupportedEncodingException e) {
throw new DSSException(e);
}
}
/**
* This method returns a {@code FileOutputStream} based on the provided path to the file.
*
* @param path
* to the file
* @return {@code FileOutputStream}
*/
public static FileOutputStream toFileOutputStream(final String path) throws DSSException {
try {
return new FileOutputStream(path);
} catch (FileNotFoundException e) {
throw new DSSException(e);
}
}
/**
* This method returns an {@code InputStream} which does not need to be closed, based on
* {@code ByteArrayInputStream}.
*
* @param file
* {@code File} to read
* @return {@code InputStream} based on {@code ByteArrayInputStream}
*/
public static InputStream toByteArrayInputStream(final File file) {
if (file == null) {
throw new NullPointerException();
}
try {
final byte[] bytes = readFileToByteArray(file);
final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);
return byteArrayInputStream;
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* This method returns the byte array representing the contents of the file.
*
* @param file
* {@code File} to read
* @return an array of {@code byte}
* @throws DSSException
*/
public static byte[] toByteArray(final File file) throws DSSException {
if (file == null) {
throw new NullPointerException();
}
try {
final byte[] bytes = readFileToByteArray(file);
return bytes;
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* FROM: Apache
* Reads the contents of a file into a byte array.
* The file is always closed.
*
* @param file
* the file to read, must not be {@code null}
* @return the file contents, never {@code null}
* @throws IOException
* in case of an I/O error
* @since Commons IO 1.1
*/
private static byte[] readFileToByteArray(final File file) throws IOException {
InputStream in = null;
try {
in = openInputStream(file);
return Utils.toByteArray(in);
} finally {
Utils.closeQuietly(in);
}
}
/**
* FROM: Apache
* Opens a {@link java.io.FileInputStream} for the specified file, providing better
* error messages than simply calling {@code new FileInputStream(file)}.
* At the end of the method either the stream will be successfully opened,
* or an exception will have been thrown.
* An exception is thrown if the file does not exist.
* An exception is thrown if the file object exists but is a directory.
* An exception is thrown if the file exists but cannot be read.
*
* @param file
* the file to open for input, must not be {@code null}
* @return a new {@link java.io.FileInputStream} for the specified file
* @throws java.io.FileNotFoundException
* if the file does not exist
* @throws IOException
* if the file object is a directory
* @throws IOException
* if the file cannot be read
* @since Commons IO 1.3
*/
private static FileInputStream openInputStream(final File file) throws IOException {
if (file.exists()) {
if (file.isDirectory()) {
throw new IOException("File '" + file + "' exists but is a directory");
}
if (!file.canRead()) {
throw new IOException("File '" + file + "' cannot be read");
}
} else {
throw new FileNotFoundException("File '" + file + "' does not exist");
}
return new FileInputStream(file);
}
/**
* Get the contents of an {@code DSSDocument} as a {@code byte[]}.
*
* @param document
* @return
*/
public static byte[] toByteArray(final DSSDocument document) {
try (InputStream is = document.openStream()) {
return toByteArray(is);
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* Get the contents of an {@code InputStream} as a {@code byte[]}.
*
* @param inputStream
* @return
*/
public static byte[] toByteArray(final InputStream inputStream) {
if (inputStream == null) {
throw new NullPointerException();
}
try {
final byte[] bytes = Utils.toByteArray(inputStream);
return bytes;
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* This method saves the given array of {@code byte} to the provided {@code File}.
*
* @param bytes
* to save
* @param file
* @throws DSSException
*/
public static void saveToFile(final byte[] bytes, final File file) throws DSSException {
file.getParentFile().mkdirs();
try (InputStream is = new ByteArrayInputStream(bytes); OutputStream os = new FileOutputStream(file)) {
Utils.copy(is, os);
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* This method saves the given {@code InputStream} to a file representing by the provided path. The
* {@code InputStream} is not closed.
*
* @param inputStream
* {@code InputStream} to save
* @param path
* the path to the file to be created
*/
public static void saveToFile(final InputStream inputStream, final String path) throws IOException {
final FileOutputStream fileOutputStream = toFileOutputStream(path);
Utils.copy(inputStream, fileOutputStream);
Utils.closeQuietly(fileOutputStream);
}
public static byte[] getEncoded(X509CRL x509CRL) {
try {
final byte[] encoded = x509CRL.getEncoded();
return encoded;
} catch (CRLException e) {
throw new DSSException(e);
}
}
/**
* return a unique id for a date and the certificateToken id.
*
* @param signingTime
* @param id
* @return
*/
public static String getDeterministicId(final Date signingTime, TokenIdentifier id) {
try (ByteArrayOutputStream baos = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(baos);) {
if (signingTime != null) {
dos.writeLong(signingTime.getTime());
}
if (id != null) {
dos.writeChars(id.asXmlId());
}
dos.close();
final String deterministicId = "id-" + getMD5Digest(baos.toByteArray());
return deterministicId;
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* Returns a Hex encoded of the MD5 digest of ByteArrayOutputStream
*
* @param bytes
* @return
*/
public static String getMD5Digest(byte[] bytes) {
try {
byte[] digestValue = digest(DigestAlgorithm.MD5, bytes);
return Utils.toHex(digestValue);
} catch (Exception e) {
throw new DSSException(e);
}
}
public static Date getLocalDate(final Date gtmDate, final Date localDate) {
final Date newLocalDate = new Date(gtmDate.getTime() + TimeZone.getDefault().getOffset(localDate.getTime()));
return newLocalDate;
}
public static long toLong(final byte[] bytes) {
// Long.valueOf(new String(bytes)).longValue();
ByteBuffer buffer = ByteBuffer.allocate(8);
buffer.put(bytes, 0, Long.SIZE / 8);
// TODO: (Bob: 2014 Jan 22) To be checked if it is not platform dependent?
buffer.flip();// need flip
return buffer.getLong();
}
/**
* This method returns the {@code X500Principal} corresponding to the given string or {@code null} if the conversion
* is not possible.
*
* @param x500PrincipalString
* a {@code String} representation of the {@code X500Principal}
* @return {@code X500Principal} or null
*/
public static X500Principal getX500PrincipalOrNull(final String x500PrincipalString) {
try {
final X500Principal x500Principal = new X500Principal(x500PrincipalString);
return x500Principal;
} catch (Exception e) {
LOG.warn(e.getMessage());
}
return null;
}
/**
* This method compares two {@code X500Principal}s. {@code X500Principal.CANONICAL} and
* {@code X500Principal.RFC2253} forms are compared.
* TODO: (Bob: 2014 Feb 20) To be investigated why the standard equals does not work!?
*
* @param firstX500Principal
* @param secondX500Principal
* @return
*/
public static boolean x500PrincipalAreEquals(final X500Principal firstX500Principal, final X500Principal secondX500Principal) {
if ((firstX500Principal == null) || (secondX500Principal == null)) {
return false;
}
if (firstX500Principal.equals(secondX500Principal)) {
return true;
}
final Map firstStringStringHashMap = DSSASN1Utils.get(firstX500Principal);
final Map secondStringStringHashMap = DSSASN1Utils.get(secondX500Principal);
final boolean containsAll = firstStringStringHashMap.entrySet().containsAll(secondStringStringHashMap.entrySet());
return containsAll;
}
/**
* @param x509SubjectName
* @return
*/
public static X500Principal getX500Principal(String x509SubjectName) throws DSSException {
try {
final X500Principal x500Principal = new X500Principal(x509SubjectName);
return getNormalizedX500Principal(x500Principal);
} catch (IllegalArgumentException e) {
throw new DSSException(e);
}
}
/**
* @param x500Principal
* to be normalized
* @return {@code X500Principal} normalized
*/
public static X500Principal getNormalizedX500Principal(final X500Principal x500Principal) {
final String utf8Name = DSSASN1Utils.getUtf8String(x500Principal);
final X500Principal x500PrincipalNormalized = new X500Principal(utf8Name);
return x500PrincipalNormalized;
}
public static InputStream getResource(final String resourcePath) {
final InputStream resourceAsStream = DSSUtils.class.getClassLoader().getResourceAsStream(resourcePath);
return resourceAsStream;
}
/**
* This method returns an UTC date base on the year, the month and the day. The year must be encoded as 1978... and
* not 78
*
* @param year
* the value used to set the YEAR calendar field.
* @param month
* the month. Month value is 0-based. e.g., 0 for January.
* @param day
* the value used to set the DAY_OF_MONTH calendar field.
* @return the UTC date base on parameters
*/
public static Date getUtcDate(final int year, final int month, final int day) {
final Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
calendar.set(year, month, day, 0, 0, 0);
final Date date = calendar.getTime();
return date;
}
/**
* This method adds or subtract the given number of days from the date
*
* @param date
* {@code Date} to change
* @param days
* number of days (can be negative)
* @return new {@code Date}
*/
public static Date getDate(final Date date, int days) {
final Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.DATE, days);
final Date newDate = calendar.getTime();
return newDate;
}
public static byte[] getUtf8Bytes(final String string) {
if (string == null) {
return null;
}
try {
final byte[] bytes = string.getBytes("UTF-8");
return bytes;
} catch (UnsupportedEncodingException e) {
throw new DSSException(e);
}
}
/**
* This method return the unique message id which can be used for translation purpose.
*
* @param message
* the {@code String} message on which the unique id is calculated.
* @return the unique id
*/
public static String getMessageId(final String message) {
final String message_ = message./* replace('\'', '_'). */toLowerCase().replaceAll("[^a-z_]", " ");
StringBuilder nameId = new StringBuilder();
final StringTokenizer stringTokenizer = new StringTokenizer(message_);
while (stringTokenizer.hasMoreElements()) {
final String word = (String) stringTokenizer.nextElement();
nameId.append(word.charAt(0));
}
final String nameIdString = nameId.toString();
return nameIdString.toUpperCase();
}
/**
* Returns an estimate of the number of bytes that can be read (or
* skipped over) from this input stream without blocking by the next
* invocation of a method for this input stream. The next invocation
* might be the same thread or another thread. A single read or skip of this
* many bytes will not block, but may read or skip fewer bytes.
* the total number of bytes in the stream, many will not. It is
* never correct to use the return value of this method to allocate
* a buffer intended to hold all data in this stream. {@link IOException} if this input stream has been closed by
* invoking the {@link InputStream#close()} method.
* returns {@code 0}.
*
* @return an estimate of the number of bytes that can be read (or skipped
* over) from this input stream without blocking or {@code 0} when
* it reaches the end of the input stream.
* @throws DSSException
* if IOException occurs (if an I/O error occurs)
*/
public static int available(final InputStream is) throws DSSException {
try {
return is.available();
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* This method lists all defined security providers.
*/
public static void printSecurityProvides() {
final Provider[] providers = Security.getProviders();
for (final Provider provider : providers) {
System.out.println("PROVIDER: " + provider.getName());
final Set services = provider.getServices();
for (final Provider.Service service : services) {
System.out.println("\tALGORITHM: " + service.getAlgorithm() + " / " + service.getType() + " / " + service.getClassName());
}
}
}
/**
* This method returns the summary of the given exception. The analysis of the stack trace stops when the provided
* class is found.
*
* @param exception
* {@code Exception} to summarize
* @param javaClass
* {@code Class}
* @return {@code String} containing the summary message
*/
public static String getSummaryMessage(final Exception exception, final Class javaClass) {
final String javaClassName = javaClass.getName();
final StackTraceElement[] stackTrace = exception.getStackTrace();
String message = "See log file for full stack trace.\n";
message += exception.toString() + '\n';
for (StackTraceElement element : stackTrace) {
final String className = element.getClassName();
if (className.equals(javaClassName)) {
message += element.toString() + '\n';
break;
}
message += element.toString() + '\n';
}
return message;
}
/**
* Reads maximum {@code headerLength} bytes from {@code dssDocument} to the given {@code byte} array.
*
* @param dssDocument
* {@code DSSDocument} to read
* @param headerLength
* {@code int}: maximum number of bytes to read
* @param destinationByteArray
* destination {@code byte} array
* @return
*/
public static int readToArray(final DSSDocument dssDocument, final int headerLength, final byte[] destinationByteArray) {
try (InputStream inputStream = dssDocument.openStream()) {
int read = inputStream.read(destinationByteArray, 0, headerLength);
return read;
} catch (IOException e) {
throw new DSSException(e);
}
}
/**
* Gets a difference between two dates
*
* @param date1
* the oldest date
* @param date2
* the newest date
* @param timeUnit
* the unit in which you want the diff
* @return the difference value, in the provided unit
*/
public static long getDateDiff(final Date date1, final Date date2, final TimeUnit timeUnit) {
long diff = date2.getTime() - date1.getTime();
return timeUnit.convert(diff, TimeUnit.MILLISECONDS);
}
/**
* Reads the first byte from the DSSDocument
*
* @param dssDocument
* the document
* @return the first byte
* @throws DSSException
*/
public static byte readFirstByte(final DSSDocument dssDocument) throws DSSException {
byte[] result = new byte[1];
try (InputStream inputStream = dssDocument.openStream()) {
inputStream.read(result, 0, 1);
} catch (IOException e) {
throw new DSSException(e);
}
return result[0];
}
/**
* Concatenates all the arrays into a new array. The new array contains all of the element of each array followed by
* all of the elements of the next array. When an array is
* returned, it is always a new array.
*
* @param arrays
* {@code byte} arrays to concatenate
* @return the new {@code byte} array
*/
public static byte[] concatenate(byte[]... arrays) {
if ((arrays == null) || (arrays.length == 0) || ((arrays.length == 1) && (arrays[0] == null))) {
return null;
}
if (arrays.length == 1) {
return arrays[0].clone();
}
int joinedLength = 0;
for (final byte[] array : arrays) {
if (array != null) {
joinedLength += array.length;
}
}
byte[] joinedArray = new byte[joinedLength];
int destinationIndex = 0;
for (final byte[] array : arrays) {
if (array != null) {
System.arraycopy(array, 0, joinedArray, destinationIndex, array.length);
destinationIndex += array.length;
}
}
return joinedArray;
}
public static String getFinalFileName(DSSDocument originalFile, SigningOperation operation, SignatureLevel level, ASiCContainerType containerType) {
StringBuilder finalName = new StringBuilder();
String originalName = null;
if (containerType != null) {
originalName = "container";
} else {
originalName = originalFile.getName();
}
if (Utils.isStringNotEmpty(originalName)) {
int dotPosition = originalName.lastIndexOf('.');
if (dotPosition > 0) {
// remove extension
finalName.append(originalName.substring(0, dotPosition));
} else {
finalName.append(originalName);
}
} else {
finalName.append("document");
}
if (SigningOperation.SIGN.equals(operation)) {
finalName.append("-signed-");
} else if (SigningOperation.EXTEND.equals(operation)) {
finalName.append("-extended-");
}
finalName.append(Utils.lowerCase(level.name().replaceAll("_", "-")));
finalName.append('.');
if (containerType != null) {
switch (containerType) {
case ASiC_S:
finalName.append("asics");
break;
case ASiC_E:
finalName.append("asice");
break;
default:
break;
}
} else {
SignatureForm signatureForm = level.getSignatureForm();
switch (signatureForm) {
case XAdES:
finalName.append("xml");
break;
case CAdES:
finalName.append("pkcs7");
break;
case PAdES:
finalName.append("pdf");
break;
default:
break;
}
}
return finalName.toString();
}
public static String getFinalFileName(DSSDocument originalFile, SigningOperation operation, SignatureLevel level) {
return getFinalFileName(originalFile, operation, level, null);
}
public static String decodeUrl(String uri) {
try {
return URLDecoder.decode(uri, "UTF-8");
} catch (UnsupportedEncodingException e) {
LOG.error("Unable to decode '" + uri + "' : " + e.getMessage(), e);
}
return uri;
}
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