| /** |
| * 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.camel.component.gae.auth; |
| |
| import java.security.KeyFactory; |
| import java.security.PrivateKey; |
| import java.security.spec.PKCS8EncodedKeySpec; |
| |
| import com.google.gdata.util.common.util.Base64; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.springframework.core.io.Resource; |
| |
| /** |
| * A Java PKCS#8-specific key loader. |
| */ |
| public class GAuthPk8Loader implements GAuthKeyLoader { |
| |
| private static final String BEGIN = "-----BEGIN PRIVATE KEY-----"; |
| private static final String END = "-----END PRIVATE KEY-----"; |
| |
| private Resource keyLocation; |
| |
| /** |
| * Sets the location of the PKCS#8 file that contains a private key. |
| * |
| * @param keyLocation |
| */ |
| public void setKeyLocation(Resource keyLocation) { |
| this.keyLocation = keyLocation; |
| } |
| |
| /** |
| * Loads a private key from a PKCS#8 file. |
| */ |
| public PrivateKey loadPrivateKey() throws Exception { |
| String str = IOUtils.toString(keyLocation.getInputStream()); |
| |
| if (str.contains(BEGIN) && str.contains(END)) { |
| str = str.substring(BEGIN.length(), str.lastIndexOf(END)); |
| } |
| |
| KeyFactory factory = KeyFactory.getInstance("RSA"); |
| return factory.generatePrivate(new PKCS8EncodedKeySpec(Base64.decode(str))); |
| } |
| |
| } |