Chapter 83. LDAP

SSL Configuration

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
    http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">

    <sslContextParameters xmlns="http://camel.apache.org/schema/spring" id="sslContextParameters" >
        <keyManagers keyPassword="{{keystore.pwd}}">
            <keyStore resource="{{keystore.url}}" password="{{keystore.pwd}}"/>
        </keyManagers>
    </sslContextParameters>

    <bean id="customSocketFactory" class="com.example.ldap.CustomSocketFactory">
        <constructor-arg index="0" ref="sslContextParameters"/>
    </bean>

    <bean id="ldapserver" class="javax.naming.directory.InitialDirContext" scope="prototype">
        <constructor-arg>
            <props>
                <prop key="java.naming.factory.initial">com.sun.jndi.ldap.LdapCtxFactory</prop>
                <prop key="java.naming.provider.url">ldaps://127.0.0.1:10636</prop>
                <prop key="java.naming.security.protocol">ssl</prop>
                <prop key="java.naming.security.authentication">none</prop>
                <prop key="java.naming.ldap.factory.socket">com.example.ldap.CustomSocketFactory</prop>
            </props>
        </constructor-arg>
    </bean>
</beans>

Custom Socket Factory

package com.example.ldap;

import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.security.KeyStore;

import javax.net.SocketFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManagerFactory;

import org.apache.camel.support.jsse.SSLContextParameters;

/**
 * The CustomSocketFactory. Loads the KeyStore and creates an instance of SSLSocketFactory
 */
public class CustomSocketFactory extends SSLSocketFactory {

    private static SSLSocketFactory socketFactory;

    /**
     * Called by the getDefault() method.
     */
    public CustomSocketFactory() {
    }

    /**
     * Called by Spring Boot DI to initialize an instance of SocketFactory
     */
    public CustomSocketFactory(SSLContextParameters sslContextParameters) {
        try {
            KeyStore keyStore = sslContextParameters.getKeyManagers().getKeyStore().createKeyStore();
            TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");
            tmf.init(keyStore);
            SSLContext ctx = SSLContext.getInstance("TLS");
            ctx.init(null, tmf.getTrustManagers(), null);
            socketFactory = ctx.getSocketFactory();
        } catch (Exception ex) {
            ex.printStackTrace(System.err);
        }
    }

    /**
     * Getter for the SocketFactory
     */
    public static SocketFactory getDefault() {
        return new CustomSocketFactory();
    }

    @Override
    public String[] getDefaultCipherSuites() {
        return socketFactory.getDefaultCipherSuites();
    }

    @Override
    public String[] getSupportedCipherSuites() {
        return socketFactory.getSupportedCipherSuites();
    }

    @Override
    public Socket createSocket(Socket socket, String string, int i, boolean bln) throws IOException {
        return socketFactory.createSocket(socket, string, i, bln);
    }

    @Override
    public Socket createSocket(String string, int i) throws IOException {
        return socketFactory.createSocket(string, i);
    }

    @Override
    public Socket createSocket(String string, int i, InetAddress ia, int i1) throws IOException {
        return socketFactory.createSocket(string, i, ia, i1);
    }

    @Override
    public Socket createSocket(InetAddress ia, int i) throws IOException {
        return socketFactory.createSocket(ia, i);
    }

    @Override
    public Socket createSocket(InetAddress ia, int i, InetAddress ia1, int i1) throws IOException {
        return socketFactory.createSocket(ia, i, ia1, i1);
    }
}