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Diffstat (limited to 'common/src/main/java/at/gv/egovernment/moa/util/SSLUtils.java')
| -rw-r--r-- | common/src/main/java/at/gv/egovernment/moa/util/SSLUtils.java | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/common/src/main/java/at/gv/egovernment/moa/util/SSLUtils.java b/common/src/main/java/at/gv/egovernment/moa/util/SSLUtils.java new file mode 100644 index 000000000..6d6aedb22 --- /dev/null +++ b/common/src/main/java/at/gv/egovernment/moa/util/SSLUtils.java @@ -0,0 +1,236 @@ +/* +* Copyright 2003 Federal Chancellery Austria +* +* Licensed 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 at.gv.egovernment.moa.util; + +import java.io.IOException; +import java.io.InputStream; +import java.security.GeneralSecurityException; +import java.security.KeyStore; + +import javax.net.ssl.KeyManager; +import javax.net.ssl.KeyManagerFactory; +import javax.net.ssl.SSLContext; +import javax.net.ssl.SSLSocketFactory; +import javax.net.ssl.TrustManager; +import javax.net.ssl.TrustManagerFactory; + +/** + * Utility for connecting to server applications via SSL. + * + * @author Paul Ivancsics + * @version $Id$ + */ +public class SSLUtils { + + /** + * Creates an <code>SSLSocketFactory</code> which utilizes the given trust store. + * + * @param trustStoreType key store type of trust store + * @param trustStoreInputStream input stream for reading JKS trust store containing + * trusted server certificates; if <code>null</code>, the default + * trust store will be utilized + * @param trustStorePassword if provided, it will be used to check + * the integrity of the trust store; if omitted, it will not be checked + * @return <code>SSLSocketFactory</code> to be used by an <code>HttpsURLConnection</code> + * @throws IOException thrown while reading from the input stream + * @throws GeneralSecurityException thrown while creating the socket factory + */ + public static SSLSocketFactory getSSLSocketFactory( + String trustStoreType, + InputStream trustStoreInputStream, + String trustStorePassword) + throws IOException, GeneralSecurityException { + + TrustManager[] tms = getTrustManagers(trustStoreType, trustStoreInputStream, trustStorePassword); + SSLContext ctx = SSLContext.getInstance("TLS"); + ctx.init(null, tms, null); + + SSLSocketFactory sf = ctx.getSocketFactory(); + return sf; + } + /** + * Creates an <code>SSLSocketFactory</code> which utilizes the + * given trust store and keystore. + * + * @param trustStore trust store containing trusted server certificates; + * if <code>null</code>, the default trust store will be utilized + * @param clientKeyStoreType key store type of <code>clientKeyStore</code> + * @param clientKeyStoreURL URL of key store containing keys to be used for + * client authentication; if <code>null</code>, the default key store will be utilized + * @param clientKeyStorePassword if provided, it will be used to check + * the integrity of the client key store; if omitted, it will not be checked + * @return <code>SSLSocketFactory</code> to be used by an <code>HttpsURLConnection</code> + * @throws IOException thrown while reading key store file + * @throws GeneralSecurityException thrown while creating the socket factory + */ + public static SSLSocketFactory getSSLSocketFactory( + KeyStore trustStore, + String clientKeyStoreType, + String clientKeyStoreURL, + String clientKeyStorePassword) + throws IOException, GeneralSecurityException { + + SSLContext ctx = getSSLContext( + trustStore, clientKeyStoreType, clientKeyStoreURL, clientKeyStorePassword); + SSLSocketFactory sf = ctx.getSocketFactory(); + return sf; + } + /** + * Creates an <code>SSLContext</code> initialized for the + * given trust store and keystore. + * + * @param trustStore trust store containing trusted server certificates; + * if <code>null</code>, the default trust store will be utilized + * @param clientKeyStoreType key store type of <code>clientKeyStore</code> + * @param clientKeyStoreURL URL of key store containing keys to be used for + * client authentication; if <code>null</code>, the default key store will be utilized + * @param clientKeyStorePassword if provided, it will be used to check + * the integrity of the client key store; if omitted, it will not be checked + * @return <code>SSLContext</code> to be used for creating an <code>SSLSocketFactory</code> + * @throws IOException thrown while reading key store file + * @throws GeneralSecurityException thrown while creating the SSL context + */ + public static SSLContext getSSLContext( + KeyStore trustStore, + String clientKeyStoreType, + String clientKeyStoreURL, + String clientKeyStorePassword) + throws IOException, GeneralSecurityException { + + //System.setProperty("javax.net.debug", "all"); + TrustManager[] tms = getTrustManagers(trustStore); + KeyManager[] kms = getKeyManagers(clientKeyStoreType, clientKeyStoreURL, clientKeyStorePassword); + SSLContext ctx = SSLContext.getInstance("TLS"); + ctx.init(kms, tms, null); + return ctx; + } + /** + * Loads the trust store from an input stream and gets the + * <code>TrustManager</code>s from a default <code>TrustManagerFactory</code>, + * initialized from the given trust store. + * @param trustStoreType key store type of trust store + * @param trustStoreInputStream input stream for reading JKS trust store containing + * trusted server certificates; if <code>null</code>, the default + * trust store will be utilized + * @param trustStorePassword if provided, it will be used to check + * the integrity of the trust store; if omitted, it will not be checked + * @return <code>TrustManager</code>s to be used for creating an + * <code>SSLSocketFactory</code> utilizing the given trust store + * @throws IOException thrown while reading from the input stream + * @throws GeneralSecurityException thrown while initializing the + * default <code>TrustManagerFactory</code> + */ + protected static TrustManager[] getTrustManagers( + String trustStoreType, + InputStream trustStoreInputStream, + String trustStorePassword) + throws IOException, GeneralSecurityException { + + if (trustStoreInputStream == null) + return null; + + // Set up the TrustStore to use. We need to load the file into + // a KeyStore instance. + KeyStore trustStore = KeyStoreUtils.loadKeyStore(trustStoreType, trustStoreInputStream, trustStorePassword); + return getTrustManagers(trustStore); + } + /** + * Gets the <code>TrustManager</code>s from a default <code>TrustManagerFactory</code>, + * initialized from the given trust store. + * + * @param trustStore the trust store to use + * @return <code>TrustManager</code>s to be used for creating an + * <code>SSLSocketFactory</code> utilizing the given trust store + * @throws GeneralSecurityException thrown while initializing the + * default <code>TrustManagerFactory</code> + */ + protected static TrustManager[] getTrustManagers(KeyStore trustStore) + throws GeneralSecurityException { + + if (trustStore == null) + return null; + + // Initialize the default TrustManagerFactory with this KeyStore + String alg=TrustManagerFactory.getDefaultAlgorithm(); + TrustManagerFactory tmFact=TrustManagerFactory.getInstance(alg); + tmFact.init(trustStore); + + // And now get the TrustManagers + TrustManager[] tms=tmFact.getTrustManagers(); + return tms; + } + /** + * Loads the client key store from file and gets the + * <code>KeyManager</code>s from a default <code>KeyManagerFactory</code>, + * initialized from the given client key store. + * @param clientKeyStoreType key store type of <code>clientKeyStore</code> + * @param clientKeyStoreURL URL of key store containing keys to be used for + * client authentication; if <code>null</code>, the default key store will be utilized + * @param clientKeyStorePassword password used to check the integrity of the client key store; + * if <code>null</code>, it will not be checked + * @return <code>KeyManager</code>s to be used for creating an + * <code>SSLSocketFactory</code> utilizing the given client key store + * @throws IOException thrown while reading from the key store file + * @throws GeneralSecurityException thrown while initializing the + * default <code>KeyManagerFactory</code> + */ + public static KeyManager[] getKeyManagers ( + String clientKeyStoreType, + String clientKeyStoreURL, + String clientKeyStorePassword) + throws IOException, GeneralSecurityException { + + if (clientKeyStoreURL == null) + return null; + + // Set up the KeyStore to use. We need to load the file into + // a KeyStore instance. + KeyStore clientKeyStore = KeyStoreUtils.loadKeyStore( + clientKeyStoreType, clientKeyStoreURL, clientKeyStorePassword); + return getKeyManagers(clientKeyStore, clientKeyStorePassword); + } + /** + * Gets the <code>KeyManager</code>s from a default <code>KeyManagerFactory</code>, + * initialized from the given client key store. + * @param clientKeyStore client key store + * @param clientKeyStorePassword if provided, it will be used to check + * the integrity of the client key store; if omitted, it will not be checked + * @return <code>KeyManager</code>s to be used for creating an + * <code>SSLSocketFactory</code> utilizing the given client key store + * @throws GeneralSecurityException thrown while initializing the + * default <code>KeyManagerFactory</code> + */ + public static KeyManager[] getKeyManagers ( + KeyStore clientKeyStore, + String clientKeyStorePassword) + throws GeneralSecurityException { + + if (clientKeyStore == null) + return null; + + // Now we initialize the default KeyManagerFactory with this KeyStore + String alg=KeyManagerFactory.getDefaultAlgorithm(); + KeyManagerFactory kmFact=KeyManagerFactory.getInstance(alg); + char[] password = null; + if (clientKeyStorePassword != null) + password = clientKeyStorePassword.toCharArray(); + kmFact.init(clientKeyStore, password); + + // And now get the KeyManagers + KeyManager[] kms=kmFact.getKeyManagers(); + return kms; + } +} |