General ECM Questions

Create/Delete user in LDAP

  • LDAP
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FunMaster

import javax.naming.NamingException;
import javax.naming.NameNotFoundException;
import javax.naming.directory.*;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;
import javax.naming.ldap.Control;
import java.util.Hashtable;
import java.util.ResourceBundle;

public class LdapUserOps {

    private static LdapContext ldapCtx;
    private static final ResourceBundle configBundle = ResourceBundle.getBundle("ldapconfig");

    // Initializes and returns an LDAP context
    public static LdapContext initializeConnection() throws Exception {
        LdapContext context = null;
        String adminUser = "cn=root,ou=users, o=sample,c=country";
        String adminPass = "abcd@123";
        try {
            String serverIP = configBundle.getString("LDAP_IP");
            String serverPort = configBundle.getString("LDAP_PORT");
            String ldapURL = "ldap://" + serverIP + ":" + serverPort;

            System.out.println("Connecting to LDAP at: " + ldapURL);

            Hashtable<String, String> envSettings = new Hashtable<>();
            envSettings.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
            envSettings.put(Context.PROVIDER_URL, ldapURL);
            envSettings.put(Context.SECURITY_AUTHENTICATION, "simple");
            envSettings.put(Context.SECURITY_PRINCIPAL, adminUser);
            envSettings.put(Context.SECURITY_CREDENTIALS, adminPass);

            Control[] controls = { new PasswordPolicyControl(true) };
            context = new InitialLdapContext(envSettings, controls);

        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return context;
    }

    // Constructs DN string for a given user
    private static String buildUserDN(String userId) {
        return "cn=" + userId + ",ou=users, o=sample,c=country";
    }

    // Adds a new LDAP user entry
    private static void registerLdapUser(String uid, String lastName, String jobTitle,
                                         String email, String empId, String phone, String fullName, String pwd) {

        try {
            ldapCtx = initializeConnection();
            Attributes attributes = new BasicAttributes();

            Attribute objectClasses = new BasicAttribute("objectClass");
            objectClasses.add("top");
            objectClasses.add("person");
            objectClasses.add("organizationalPerson");
            objectClasses.add("inetOrgPerson");

            attributes.put(objectClasses);
            attributes.put(new BasicAttribute("cn", uid));
            attributes.put(new BasicAttribute("sn", lastName));
            attributes.put(new BasicAttribute("uid", uid));
            attributes.put(new BasicAttribute("title", jobTitle));
            attributes.put(new BasicAttribute("mail", email));
            attributes.put(new BasicAttribute("mobile", phone));
            attributes.put(new BasicAttribute("employeeNumber", empId));
            attributes.put(new BasicAttribute("displayName", fullName));
            attributes.put(new BasicAttribute("userPassword", pwd));

            ldapCtx.createSubcontext(buildUserDN(uid), attributes);

            System.out.println(pwd + " - has been set as the password for user: " + uid);

        } catch (Exception err) {
            System.err.println("Error while creating user: " + err.getMessage());
        }
    }

    // Deletes an LDAP user entry
    private static void removeLdapUser(String userId) throws NamingException {
        try {
            ldapCtx.destroySubcontext(buildUserDN(userId));
            System.out.println("Successfully removed user: " + userId);
        } catch (NameNotFoundException nf) {
            System.err.println("User not found for deletion: " + nf.getMessage());
        }
    }
}

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