Java/JNDI LDAP/LdapContext

Getting LDAP Response Controls

 
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.directory.SearchResult;
import javax.naming.ldap.HasControls;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;
public class Main {
  public static void main(String[] argv) throws Exception {
    String url = "ldap://localhost/o=JNDITutorial";
    Hashtable<String, String> env = new Hashtable<String, String>();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, url);
    env.put(Context.SECURITY_AUTHENTICATION, "simple");
    env.put(Context.SECURITY_PRINCIPAL, "userDN");
    env.put(Context.SECURITY_CREDENTIALS, "secret");
    LdapContext ctx = new InitialLdapContext(env, null);
    NamingEnumeration answer = ctx.search("ou=People", "(cn=*)", null);
    System.out.println(ctx.getResponseControls());
    while (answer.hasMore()) {
      SearchResult si = (SearchResult) answer.next();
      if (si instanceof HasControls) {
        System.out.println(((HasControls) si).getControls());
      }
    }
    System.out.println(ctx.getResponseControls());
  }
}

how to look up an object

 
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 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.naming.ldap.LdapContext;
/**
 * Demonstrates how to look up an object.
 * 
 * usage: java Lookup
 */
class Lookup {
  public static void main(String[] args) {
    // Set up the environment for creating the initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env
        .put(Context.INITIAL_CONTEXT_FACTORY,
            "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");
    try {
      // Create the initial context
      Context ctx = new InitialContext(env);
      // Perform lookup and cast to target type
      LdapContext b = (LdapContext) ctx.lookup("cn=Rosanna Lee,ou=People");
      System.out.println(b);
      // Close the context when we"re done
      ctx.close();
    } catch (NamingException e) {
      System.out.println("Lookup failed: " + e);
    }
  }
}

Setting LDAP Connection Request Controls

 
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.ldap.Control;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;
public class Main {
  public static void main(String[] argv) throws Exception {
    String url = "ldap://localhost/o=JNDITutorial";
    Hashtable<String, String> env = new Hashtable<String, String>();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, url);
    env.put(Context.SECURITY_AUTHENTICATION, "simple");
    env.put(Context.SECURITY_PRINCIPAL, "userDN");
    env.put(Context.SECURITY_CREDENTIALS, "secret");
    // Create connection controls to use
    Control[] connectCtls = new Control[] { null };
    LdapContext ctx = new InitialLdapContext(env, connectCtls);
  }
}

Setting LDAP Context Request Controls

 

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NameClassPair;
import javax.naming.NamingEnumeration;
import javax.naming.ldap.Control;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;
import javax.naming.ldap.SortControl;
public class Main {
  public static void main(String[] argv) throws Exception {
    String url = "ldap://localhost/o=JNDITutorial";
    Hashtable<String, String> env = new Hashtable<String, String>();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, url);
    env.put(Context.SECURITY_AUTHENTICATION, "simple");
    env.put(Context.SECURITY_PRINCIPAL, "userDN");
    env.put(Context.SECURITY_CREDENTIALS, "secret");
  
    Control[] connectCtls = new Control[] { null };
    LdapContext ctx = new InitialLdapContext(env, null);
    Control[] ctxCtls = new Control[] { new SortControl(new String[] { "cn" }, Control.CRITICAL) };
    ctx.setRequestControls(ctxCtls);
    NamingEnumeration answer = ctx.list("");
    while (answer.hasMore()) {
      NameClassPair item = (NameClassPair) answer.next();
    }
  }
}

Use Person class to add an entry to the LDAP server

 
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
public class Main {
  public static String INITCTX = "com.sun.jndi.ldap.LdapCtxFactory";
  public static String MY_HOST = "ldap://localhost:389";
  public static String MGR_DN = "uid=yourid, ou=People, o=java.ru";
  public static String MGR_PW = "password";
  public static String MY_SEARCHBASE = "o=java.ru";
  public static void main(String args[]) throws Exception {
    Hashtable<String, String> env = new Hashtable<String, String>();
    env.put(Context.INITIAL_CONTEXT_FACTORY, INITCTX);
    env.put(Context.PROVIDER_URL, MY_HOST);
    env.put(Context.SECURITY_AUTHENTICATION, "simple");
    env.put(Context.SECURITY_PRINCIPAL, MGR_DN);
    env.put(Context.SECURITY_CREDENTIALS, MGR_PW);
    DirContext ctx = new InitialDirContext(env);
    Person p = new Person();
    ctx.bind("uid=mewilcox, ou=People, o=airius.ru", p);
  }
}
class Person{
  String name="name";
}