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Camunda Keycloak Identity Provider Plugin including all transitive dependencies
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/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
*
* Please note: the default Oracle JSSE implementation of {@link SSLContext#init(KeyManager[], TrustManager[], SecureRandom)}
* accepts multiple key and trust managers, however only only first matching type is ever used.
* See for example:
*
* SSLContext.html#init
*
*
* TODO Specify which Oracle JSSE versions the above has been verified.
*
* @since 4.4
*/
public class SSLContextBuilder {
static final String TLS = "TLS";
private String protocol;
private final Set keyManagers;
private String keyManagerFactoryAlgorithm = KeyManagerFactory.getDefaultAlgorithm();
private String keyStoreType = KeyStore.getDefaultType();
private final Set trustManagers;
private String trustManagerFactoryAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
private SecureRandom secureRandom;
private Provider provider;
public static SSLContextBuilder create() {
return new SSLContextBuilder();
}
public SSLContextBuilder() {
super();
this.keyManagers = new LinkedHashSet();
this.trustManagers = new LinkedHashSet();
}
/**
* Sets the SSLContext protocol algorithm name.
*
* @param protocol
* the SSLContext protocol algorithm name of the requested protocol. See
* the SSLContext section in the Java
* Cryptography Architecture Standard Algorithm Name
* Documentation for more information.
* @return this builder
* @see Java
* Cryptography Architecture Standard Algorithm Name Documentation
* @deprecated Use {@link #setProtocol(String)}.
*/
@Deprecated
public SSLContextBuilder useProtocol(final String protocol) {
this.protocol = protocol;
return this;
}
/**
* Sets the SSLContext protocol algorithm name.
*
* @param protocol
* the SSLContext protocol algorithm name of the requested protocol. See
* the SSLContext section in the Java
* Cryptography Architecture Standard Algorithm Name
* Documentation for more information.
* @return this builder
* @see Java
* Cryptography Architecture Standard Algorithm Name Documentation
* @since 4.4.7
*/
public SSLContextBuilder setProtocol(final String protocol) {
this.protocol = protocol;
return this;
}
public SSLContextBuilder setSecureRandom(final SecureRandom secureRandom) {
this.secureRandom = secureRandom;
return this;
}
public SSLContextBuilder setProvider(final Provider provider) {
this.provider = provider;
return this;
}
public SSLContextBuilder setProvider(final String name) {
this.provider = Security.getProvider(name);
return this;
}
/**
* Sets the key store type.
*
* @param keyStoreType
* the SSLkey store type. See
* the KeyStore section in the Java
* Cryptography Architecture Standard Algorithm Name
* Documentation for more information.
* @return this builder
* @see Java
* Cryptography Architecture Standard Algorithm Name Documentation
* @since 4.4.7
*/
public SSLContextBuilder setKeyStoreType(final String keyStoreType) {
this.keyStoreType = keyStoreType;
return this;
}
/**
* Sets the key manager factory algorithm name.
*
* @param keyManagerFactoryAlgorithm
* the key manager factory algorithm name of the requested protocol. See
* the KeyManagerFactory section in the Java
* Cryptography Architecture Standard Algorithm Name
* Documentation for more information.
* @return this builder
* @see Java
* Cryptography Architecture Standard Algorithm Name Documentation
* @since 4.4.7
*/
public SSLContextBuilder setKeyManagerFactoryAlgorithm(final String keyManagerFactoryAlgorithm) {
this.keyManagerFactoryAlgorithm = keyManagerFactoryAlgorithm;
return this;
}
/**
* Sets the trust manager factory algorithm name.
*
* @param trustManagerFactoryAlgorithm
* the trust manager algorithm name of the requested protocol. See
* the TrustManagerFactory section in the Java
* Cryptography Architecture Standard Algorithm Name
* Documentation for more information.
* @return this builder
* @see Java
* Cryptography Architecture Standard Algorithm Name Documentation
* @since 4.4.7
*/
public SSLContextBuilder setTrustManagerFactoryAlgorithm(final String trustManagerFactoryAlgorithm) {
this.trustManagerFactoryAlgorithm = trustManagerFactoryAlgorithm;
return this;
}
public SSLContextBuilder loadTrustMaterial(
final KeyStore truststore,
final TrustStrategy trustStrategy) throws NoSuchAlgorithmException, KeyStoreException {
final TrustManagerFactory tmfactory = TrustManagerFactory
.getInstance(trustManagerFactoryAlgorithm == null ? TrustManagerFactory.getDefaultAlgorithm()
: trustManagerFactoryAlgorithm);
tmfactory.init(truststore);
final TrustManager[] tms = tmfactory.getTrustManagers();
if (tms != null) {
if (trustStrategy != null) {
for (int i = 0; i < tms.length; i++) {
final TrustManager tm = tms[i];
if (tm instanceof X509TrustManager) {
tms[i] = new TrustManagerDelegate((X509TrustManager) tm, trustStrategy);
}
}
}
Collections.addAll(this.trustManagers, tms);
}
return this;
}
public SSLContextBuilder loadTrustMaterial(
final TrustStrategy trustStrategy) throws NoSuchAlgorithmException, KeyStoreException {
return loadTrustMaterial(null, trustStrategy);
}
public SSLContextBuilder loadTrustMaterial(
final File file,
final char[] storePassword,
final TrustStrategy trustStrategy) throws NoSuchAlgorithmException, KeyStoreException, CertificateException, IOException {
Args.notNull(file, "Truststore file");
final KeyStore trustStore = KeyStore.getInstance(keyStoreType);
final FileInputStream inStream = new FileInputStream(file);
try {
trustStore.load(inStream, storePassword);
} finally {
inStream.close();
}
return loadTrustMaterial(trustStore, trustStrategy);
}
public SSLContextBuilder loadTrustMaterial(
final File file,
final char[] storePassword) throws NoSuchAlgorithmException, KeyStoreException, CertificateException, IOException {
return loadTrustMaterial(file, storePassword, null);
}
public SSLContextBuilder loadTrustMaterial(
final File file) throws NoSuchAlgorithmException, KeyStoreException, CertificateException, IOException {
return loadTrustMaterial(file, null);
}
public SSLContextBuilder loadTrustMaterial(
final URL url,
final char[] storePassword,
final TrustStrategy trustStrategy) throws NoSuchAlgorithmException, KeyStoreException, CertificateException, IOException {
Args.notNull(url, "Truststore URL");
final KeyStore trustStore = KeyStore.getInstance(keyStoreType);
final InputStream inStream = url.openStream();
try {
trustStore.load(inStream, storePassword);
} finally {
inStream.close();
}
return loadTrustMaterial(trustStore, trustStrategy);
}
public SSLContextBuilder loadTrustMaterial(
final URL url,
final char[] storePassword) throws NoSuchAlgorithmException, KeyStoreException, CertificateException, IOException {
return loadTrustMaterial(url, storePassword, null);
}
public SSLContextBuilder loadKeyMaterial(
final KeyStore keystore,
final char[] keyPassword,
final PrivateKeyStrategy aliasStrategy)
throws NoSuchAlgorithmException, KeyStoreException, UnrecoverableKeyException {
final KeyManagerFactory kmfactory = KeyManagerFactory
.getInstance(keyManagerFactoryAlgorithm == null ? KeyManagerFactory.getDefaultAlgorithm()
: keyManagerFactoryAlgorithm);
kmfactory.init(keystore, keyPassword);
final KeyManager[] kms = kmfactory.getKeyManagers();
if (kms != null) {
if (aliasStrategy != null) {
for (int i = 0; i < kms.length; i++) {
final KeyManager km = kms[i];
if (km instanceof X509ExtendedKeyManager) {
kms[i] = new KeyManagerDelegate((X509ExtendedKeyManager) km, aliasStrategy);
}
}
}
Collections.addAll(keyManagers, kms);
}
return this;
}
public SSLContextBuilder loadKeyMaterial(
final KeyStore keystore,
final char[] keyPassword) throws NoSuchAlgorithmException, KeyStoreException, UnrecoverableKeyException {
return loadKeyMaterial(keystore, keyPassword, null);
}
public SSLContextBuilder loadKeyMaterial(
final File file,
final char[] storePassword,
final char[] keyPassword,
final PrivateKeyStrategy aliasStrategy) throws NoSuchAlgorithmException, KeyStoreException, UnrecoverableKeyException, CertificateException, IOException {
Args.notNull(file, "Keystore file");
final KeyStore identityStore = KeyStore.getInstance(keyStoreType);
final FileInputStream inStream = new FileInputStream(file);
try {
identityStore.load(inStream, storePassword);
} finally {
inStream.close();
}
return loadKeyMaterial(identityStore, keyPassword, aliasStrategy);
}
public SSLContextBuilder loadKeyMaterial(
final File file,
final char[] storePassword,
final char[] keyPassword) throws NoSuchAlgorithmException, KeyStoreException, UnrecoverableKeyException, CertificateException, IOException {
return loadKeyMaterial(file, storePassword, keyPassword, null);
}
public SSLContextBuilder loadKeyMaterial(
final URL url,
final char[] storePassword,
final char[] keyPassword,
final PrivateKeyStrategy aliasStrategy) throws NoSuchAlgorithmException, KeyStoreException, UnrecoverableKeyException, CertificateException, IOException {
Args.notNull(url, "Keystore URL");
final KeyStore identityStore = KeyStore.getInstance(keyStoreType);
final InputStream inStream = url.openStream();
try {
identityStore.load(inStream, storePassword);
} finally {
inStream.close();
}
return loadKeyMaterial(identityStore, keyPassword, aliasStrategy);
}
public SSLContextBuilder loadKeyMaterial(
final URL url,
final char[] storePassword,
final char[] keyPassword) throws NoSuchAlgorithmException, KeyStoreException, UnrecoverableKeyException, CertificateException, IOException {
return loadKeyMaterial(url, storePassword, keyPassword, null);
}
protected void initSSLContext(
final SSLContext sslContext,
final Collection keyManagers,
final Collection trustManagers,
final SecureRandom secureRandom) throws KeyManagementException {
sslContext.init(
!keyManagers.isEmpty() ? keyManagers.toArray(new KeyManager[keyManagers.size()]) : null,
!trustManagers.isEmpty() ? trustManagers.toArray(new TrustManager[trustManagers.size()]) : null,
secureRandom);
}
public SSLContext build() throws NoSuchAlgorithmException, KeyManagementException {
final SSLContext sslContext;
final String protocolStr = this.protocol != null ? this.protocol : TLS;
if (this.provider != null) {
sslContext = SSLContext.getInstance(protocolStr, this.provider);
} else {
sslContext = SSLContext.getInstance(protocolStr);
}
initSSLContext(sslContext, keyManagers, trustManagers, secureRandom);
return sslContext;
}
static class TrustManagerDelegate implements X509TrustManager {
private final X509TrustManager trustManager;
private final TrustStrategy trustStrategy;
TrustManagerDelegate(final X509TrustManager trustManager, final TrustStrategy trustStrategy) {
super();
this.trustManager = trustManager;
this.trustStrategy = trustStrategy;
}
@Override
public void checkClientTrusted(
final X509Certificate[] chain, final String authType) throws CertificateException {
this.trustManager.checkClientTrusted(chain, authType);
}
@Override
public void checkServerTrusted(
final X509Certificate[] chain, final String authType) throws CertificateException {
if (!this.trustStrategy.isTrusted(chain, authType)) {
this.trustManager.checkServerTrusted(chain, authType);
}
}
@Override
public X509Certificate[] getAcceptedIssuers() {
return this.trustManager.getAcceptedIssuers();
}
}
static class KeyManagerDelegate extends X509ExtendedKeyManager {
private final X509ExtendedKeyManager keyManager;
private final PrivateKeyStrategy aliasStrategy;
KeyManagerDelegate(final X509ExtendedKeyManager keyManager, final PrivateKeyStrategy aliasStrategy) {
super();
this.keyManager = keyManager;
this.aliasStrategy = aliasStrategy;
}
@Override
public String[] getClientAliases(
final String keyType, final Principal[] issuers) {
return this.keyManager.getClientAliases(keyType, issuers);
}
public Map getClientAliasMap(
final String[] keyTypes, final Principal[] issuers) {
final Map validAliases = new HashMap();
for (final String keyType: keyTypes) {
final String[] aliases = this.keyManager.getClientAliases(keyType, issuers);
if (aliases != null) {
for (final String alias: aliases) {
validAliases.put(alias,
new PrivateKeyDetails(keyType, this.keyManager.getCertificateChain(alias)));
}
}
}
return validAliases;
}
public Map getServerAliasMap(
final String keyType, final Principal[] issuers) {
final Map validAliases = new HashMap();
final String[] aliases = this.keyManager.getServerAliases(keyType, issuers);
if (aliases != null) {
for (final String alias: aliases) {
validAliases.put(alias,
new PrivateKeyDetails(keyType, this.keyManager.getCertificateChain(alias)));
}
}
return validAliases;
}
@Override
public String chooseClientAlias(
final String[] keyTypes, final Principal[] issuers, final Socket socket) {
final Map validAliases = getClientAliasMap(keyTypes, issuers);
return this.aliasStrategy.chooseAlias(validAliases, socket);
}
@Override
public String[] getServerAliases(
final String keyType, final Principal[] issuers) {
return this.keyManager.getServerAliases(keyType, issuers);
}
@Override
public String chooseServerAlias(
final String keyType, final Principal[] issuers, final Socket socket) {
final Map validAliases = getServerAliasMap(keyType, issuers);
return this.aliasStrategy.chooseAlias(validAliases, socket);
}
@Override
public X509Certificate[] getCertificateChain(final String alias) {
return this.keyManager.getCertificateChain(alias);
}
@Override
public PrivateKey getPrivateKey(final String alias) {
return this.keyManager.getPrivateKey(alias);
}
@Override
public String chooseEngineClientAlias(
final String[] keyTypes, final Principal[] issuers, final SSLEngine sslEngine) {
final Map validAliases = getClientAliasMap(keyTypes, issuers);
return this.aliasStrategy.chooseAlias(validAliases, null);
}
@Override
public String chooseEngineServerAlias(
final String keyType, final Principal[] issuers, final SSLEngine sslEngine) {
final Map validAliases = getServerAliasMap(keyType, issuers);
return this.aliasStrategy.chooseAlias(validAliases, null);
}
}
@Override
public String toString() {
return "[provider=" + provider + ", protocol=" + protocol + ", keyStoreType=" + keyStoreType
+ ", keyManagerFactoryAlgorithm=" + keyManagerFactoryAlgorithm + ", keyManagers=" + keyManagers
+ ", trustManagerFactoryAlgorithm=" + trustManagerFactoryAlgorithm + ", trustManagers=" + trustManagers
+ ", secureRandom=" + secureRandom + "]";
}
}