| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.cxf.fediz.core.util; |
| |
| import java.io.BufferedInputStream; |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.security.cert.Certificate; |
| import java.security.cert.CertificateException; |
| import java.security.cert.CertificateFactory; |
| import java.security.cert.X509Certificate; |
| import java.util.Base64; |
| import java.util.Collections; |
| import java.util.Properties; |
| |
| import org.apache.cxf.fediz.core.exception.ProcessingException; |
| import org.apache.wss4j.common.crypto.CertificateStore; |
| import org.apache.wss4j.common.crypto.Crypto; |
| import org.apache.wss4j.common.crypto.CryptoFactory; |
| import org.apache.wss4j.common.crypto.CryptoType; |
| import org.apache.wss4j.common.crypto.Merlin; |
| import org.apache.wss4j.common.ext.WSSecurityException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public final class CertsUtils { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(CertsUtils.class); |
| |
| private CertsUtils() { |
| super(); |
| } |
| |
| /** |
| * Load an X.509 Certificate from a certificate file |
| */ |
| public static X509Certificate getX509CertificateFromFile(String filename) throws CertificateException { |
| return getX509CertificateFromFile(filename, |
| Thread.currentThread().getContextClassLoader()); |
| } |
| |
| /** |
| * Load an X.509 Certificate from a certificate file |
| */ |
| public static X509Certificate getX509CertificateFromFile(String filename, ClassLoader classLoader) |
| throws CertificateException { |
| if (filename == null) { |
| return null; |
| } |
| |
| ClassLoader cl = classLoader; |
| if (cl == null) { |
| cl = Thread.currentThread().getContextClassLoader(); |
| } |
| |
| try (InputStream is = Merlin.loadInputStream(cl, filename); |
| BufferedInputStream bis = new BufferedInputStream(is)) { |
| |
| CertificateFactory cf = CertificateFactory.getInstance("X.509"); |
| |
| if (bis.available() > 0) { |
| Certificate cert = cf.generateCertificate(bis); |
| if (!(cert instanceof X509Certificate)) { |
| LOG.error("Certificate " + filename + " is not of type X509Certificate"); |
| throw new RuntimeException("Certificate " |
| + filename + " is not of type X509Certificate"); |
| } |
| if (bis.available() > 0) { |
| LOG.warn("There are more certificates configured in " + filename + ". Only first is parsed"); |
| } |
| return (X509Certificate)cert; |
| } else { |
| LOG.error("No bytes can be read in certificate file " + filename); |
| throw new RuntimeException("No bytes can be read in certificate file " + filename); |
| } |
| } catch (WSSecurityException ex) { |
| LOG.error("Failed to read certificate file " + filename, ex); |
| throw new RuntimeException("Failed to read certificate file " + filename, ex); |
| } catch (IOException ex) { |
| LOG.error("Failed to read keystore", ex); |
| throw new RuntimeException("Failed to read keystore"); |
| } |
| } |
| |
| /** |
| * Load an X.509 Certificate from a WSS4J Crypto instance using a keystore alias |
| */ |
| public static X509Certificate getX509CertificateFromCrypto(Crypto crypto, String keyAlias) |
| throws WSSecurityException { |
| if (keyAlias == null || "".equals(keyAlias)) { |
| keyAlias = crypto.getDefaultX509Identifier(); |
| } |
| |
| if (keyAlias == null) { |
| throw new RuntimeException("No keystore alias was specified to sign the metadata"); |
| } |
| |
| CryptoType cryptoType = new CryptoType(CryptoType.TYPE.ALIAS); |
| cryptoType.setAlias(keyAlias); |
| X509Certificate[] issuerCerts = crypto.getX509Certificates(cryptoType); |
| if (issuerCerts == null || issuerCerts.length == 0) { |
| throw new RuntimeException( |
| "No issuer certs were found to sign the metadata using issuer name: " |
| + keyAlias); |
| } |
| return issuerCerts[0]; |
| } |
| |
| /** |
| * Parse a String parameter into an X.509 Certificate. The parameter can be either the encoded cert, or else |
| * a filename containing the certificate. |
| */ |
| public static X509Certificate parseX509Certificate(String certificate) |
| throws CertificateException, WSSecurityException, ProcessingException, IOException { |
| if (certificate == null) { |
| return null; |
| } |
| |
| boolean isCertificateLocation = !certificate.startsWith("-----BEGIN CERTIFICATE"); |
| if (isCertificateLocation) { |
| try { |
| return CertsUtils.getX509CertificateFromFile(certificate); |
| } catch (CertificateException ex) { |
| // Maybe it's a WSS4J properties file... |
| Crypto crypto = CertsUtils.getCryptoFromFile(certificate); |
| if (crypto != null) { |
| return CertsUtils.getX509CertificateFromCrypto(crypto, null); |
| } |
| } |
| } |
| |
| // Here the certificate is encoded in the configuration file |
| try { |
| return CertsUtils.parseCertificate(certificate); |
| } catch (Exception ex) { |
| LOG.error("Failed to parse trusted certificate", ex); |
| throw new ProcessingException("Failed to parse trusted certificate"); |
| } |
| } |
| |
| /** |
| * Get a Crypto instance from a file |
| */ |
| public static Crypto getCryptoFromFile(String filename) { |
| Properties prop = new Properties(); |
| try (InputStream is = Merlin.loadInputStream(Thread.currentThread().getContextClassLoader(), filename)) { |
| prop.load(is); |
| return CryptoFactory.getInstance(prop); |
| } catch (WSSecurityException ex) { |
| LOG.error("Failed to load keystore " + prop.toString(), ex); |
| throw new RuntimeException("Failed to load keystore " + prop.toString()); |
| } catch (IOException ex) { |
| LOG.error("Failed to read signing metadata key", ex); |
| throw new RuntimeException("Failed to read signing metadata key"); |
| } |
| } |
| |
| /** |
| * Get a crypto instance using a certificate |
| */ |
| public static Crypto getCryptoFromCertificate(String certificate) throws ProcessingException { |
| if (certificate == null) { |
| return null; |
| } |
| |
| boolean isCertificateLocation = !certificate.startsWith("-----BEGIN CERTIFICATE"); |
| if (isCertificateLocation) { |
| try { |
| X509Certificate cert = CertsUtils.getX509CertificateFromFile(certificate); |
| if (cert == null) { |
| return null; |
| } |
| return new CertificateStore(new X509Certificate[]{cert}); |
| } catch (CertificateException ex) { |
| // Maybe it's a WSS4J properties file... |
| return CertsUtils.getCryptoFromFile(certificate); |
| } |
| } |
| |
| // Here the certificate is encoded in the configuration file |
| X509Certificate cert; |
| try { |
| cert = CertsUtils.parseCertificate(certificate); |
| } catch (Exception ex) { |
| LOG.error("Failed to parse trusted certificate", ex); |
| throw new ProcessingException("Failed to parse trusted certificate"); |
| } |
| return new CertificateStore(Collections.singletonList(cert).toArray(new X509Certificate[0])); |
| } |
| |
| private static X509Certificate parseCertificate(String certificate) |
| throws CertificateException, IOException { |
| |
| //before decoding we need to get rid off the prefix and suffix |
| byte[] decoded = Base64.getDecoder().decode(certificate.replaceAll("-----BEGIN CERTIFICATE-----", ""). |
| replaceAll("-----END CERTIFICATE-----", "")); |
| |
| try (InputStream is = new ByteArrayInputStream(decoded)) { |
| return (X509Certificate)CertificateFactory.getInstance("X.509").generateCertificate(is); |
| } |
| } |
| |
| } |