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/**
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* '$RCSfile$'
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* Purpose: An implementation of the AuthInterface interface that
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* allows Metacat to use the LDAP protocol for
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* directory services
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* Copyright: 2000 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* Authors: Matt Jones
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* Release: @release@
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*
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* '$Author: berkley $'
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* '$Date: 2001-10-31 11:06:16 -0800 (Wed, 31 Oct 2001) $'
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* '$Revision: 866 $'
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat;
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import java.net.ConnectException;
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import javax.naming.AuthenticationException;
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import javax.naming.Context;
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import javax.naming.NamingEnumeration;
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import javax.naming.NamingException;
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import javax.naming.InitialContext;
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import javax.naming.directory.InvalidSearchFilterException;
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import javax.naming.directory.Attribute;
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import javax.naming.directory.Attributes;
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import javax.naming.directory.BasicAttribute;
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import javax.naming.directory.BasicAttributes;
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import javax.naming.directory.DirContext;
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import javax.naming.directory.InitialDirContext;
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import javax.naming.directory.SearchResult;
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import javax.naming.directory.SearchControls;
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import javax.naming.ldap.*;
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import java.util.Iterator;
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import java.util.HashMap;
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import java.util.Hashtable;
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import java.util.Enumeration;
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import java.util.Set;
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import java.util.Vector;
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/**
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* An implementation of the AuthInterface interface that
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* allows Metacat to use the LDAP protocol for directory services.
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* The LDAP authentication service is used to determine if a user
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* is authenticated, and whether they are a member of a particular group.
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*/
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public class AuthLdap implements AuthInterface {
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private MetaCatUtil util = new MetaCatUtil();
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private String ldapUrl;
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private String ldapsUrl;
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private String ldapBase;
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private String referral;
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/**
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* Construct an AuthLdap
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*/
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public AuthLdap() {
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// Read LDAP URI for directory service information
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this.ldapUrl = MetaCatUtil.getOption("ldapurl");
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this.ldapsUrl = MetaCatUtil.getOption("ldapsurl");
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this.ldapBase = MetaCatUtil.getOption("ldapbase");
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this.referral = MetaCatUtil.getOption("referral");
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}
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/**
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* Determine if a user/password are valid according to the authentication
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* service.
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*
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* @param user the name of the principal to authenticate
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* @param password the password to use for authentication
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* @returns boolean true if authentication successful, false otherwise
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*/
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public boolean authenticate(String user, String password)
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throws ConnectException
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{
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System.out.println("ldap authenticating");
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String ldapUrl = this.ldapUrl;
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String ldapsUrl = this.ldapsUrl;
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String ldapBase = this.ldapBase;
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boolean authenticated = false;
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String identifier = user;
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try {
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// Check the usename as passed in
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authenticated = ldapAuthenticate(identifier, password);
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// if not found, try looking up a valid DN then auth again
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if (!authenticated) {
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identifier = getIdentifyingName(identifier,ldapUrl,ldapBase);
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System.out.println(ldapsUrl + identifier + "," + ldapBase);
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authenticated = ldapAuthenticate(identifier+","+ldapBase, password);
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}
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} catch (NullPointerException e) {
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util.debugMessage("NullPointerException b' password is null");
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util.debugMessage("NullPointerException while authenticating in " +
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"AuthLdap.authenticate: " + e);
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throw new ConnectException(
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"NullPointerException while authenticating in " +
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"AuthLdap.authenticate: " + e);
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} catch (NamingException e) {
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util.debugMessage("Naming exception while authenticating in " +
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"AuthLdap.authenticate: " + e);
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e.printStackTrace();
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} catch (Exception e) {
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System.out.println(e.getMessage());
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}
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return authenticated;
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}
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/**
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* Connect to the LDAP directory and do the authentication using the
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* username and password as passed into the routine.
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*
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* @param identifier the distinguished name to check against LDAP
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* @param password the password for authentication
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*/
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private boolean ldapAuthenticate(String identifier, String password)
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throws ConnectException, NamingException, NullPointerException
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{
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boolean authenticated = false;
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if (identifier != null && !password.equals("")) {
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// Identify service provider to use
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Hashtable env = new Hashtable(11);
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env.put(Context.INITIAL_CONTEXT_FACTORY,
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"com.sun.jndi.ldap.LdapCtxFactory");
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System.out.println("referral: " + referral);
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// Now that we have the dn, we can authenticate, so
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// authenticate this time when opening the DirContext
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env.put(Context.REFERRAL, "throw");
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System.out.println("ldapsUrl: " + ldapsUrl + " ldapBase: " + ldapBase);
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env.put(Context.PROVIDER_URL, ldapsUrl + ldapBase);
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if ( !ldapsUrl.equals(ldapUrl) ) {
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// ldap is set on default port 389
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// ldaps is set on second port - 636 by default
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env.put(Context.SECURITY_PROTOCOL, "ssl");
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}
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env.put(Context.SECURITY_AUTHENTICATION, "simple");
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env.put(Context.SECURITY_PRINCIPAL, identifier);
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System.out.println("Trying DN: " + identifier);
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env.put(Context.SECURITY_CREDENTIALS, password);
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// If our auth credentials are invalid, an exception will be thrown
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DirContext ctx = null;
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try {
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double startTime = System.currentTimeMillis();
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ctx = new InitialDirContext(env);
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// // StartTLS support from LDAPv3 with X.509 cert and with JSDKv1.4+
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// LdapContext ctx = new InitialLdapContext(env, null);
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// StartTlsResponse tls =
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// (StartTlsResponse)ctx.extendedOperation(new StartTlsRequest());
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// tls.negotiate();
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double stopTime = System.currentTimeMillis();
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System.out.println("Connection time thru " + ldapsUrl + " was: " +
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(stopTime-startTime)/1000 + " seconds.");
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authenticated = true;
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//tls.close();
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ctx.close();
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this.ldapUrl = ldapUrl;
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this.ldapBase = ldapBase;
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//break;
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} catch (AuthenticationException ae) {
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authenticated = false;
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// if ( tls != null ) {
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// tls.close();
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// }
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if ( ctx != null ) {
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ctx.close();
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}
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} catch (javax.naming.InvalidNameException ine) {
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System.out.println("An invalid DN was provided!");
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} catch(javax.naming.ReferralException re) {
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System.out.println("referral to : " + re.getReferralInfo().toString());
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try
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{
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/*
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Matt, I think this is right but I'm not sure...please check me to make
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sure I didn't do something wrong here.
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*/
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Context refctx = re.getReferralContext(env);
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authenticated = true;
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}
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catch(Exception e)
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{
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System.out.println("Error with referral to : " + re.getReferralInfo().toString());
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}
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}
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} else {
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util.debugMessage("User not found");
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}
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return authenticated;
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}
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/**
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* Get the identifying name for a given userid or name. This is the name
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* that is used in conjunction withthe LDAP BaseDN to create a
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* distinguished name (dn) for the record
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*
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* @param user the user for which the identifying name is requested
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* @returns String the identifying name for the user,
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* or null if not found
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*/
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private String getIdentifyingName(String user, String ldapUrl, String ldapBase)
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throws NamingException
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{
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String identifier = null;
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// Identify service provider to use
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Hashtable env = new Hashtable(11);
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env.put(Context.INITIAL_CONTEXT_FACTORY,
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"com.sun.jndi.ldap.LdapCtxFactory");
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util.debugMessage("setting referrals to: " + referral);
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env.put(Context.REFERRAL, referral);
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env.put(Context.PROVIDER_URL, ldapUrl + ldapBase);
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// non-secure LDAP context; dn are publicly readable
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// env.put(Context.SECURITY_PROTOCOL, "ssl");
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try {
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// Bind to the LDAP server, in order to search for the right
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// distinguished name (dn) based on userid (uid) or common name (cn)
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DirContext ctx = new InitialDirContext(env);
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SearchControls ctls = new SearchControls();
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ctls.setSearchScope(SearchControls.SUBTREE_SCOPE);
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// Search for the user id or name using the uid, then cn and sn attributes
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// If we find a record, determine the dn for the record
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util.debugMessage("\nStarting search phase...\n");
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String filter = "(" + user + ")";
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NamingEnumeration answer;
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try {
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answer = ctx.search("", filter, ctls);
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if (answer.hasMore()) {
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SearchResult sr = (SearchResult)answer.next();
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identifier = sr.getName();
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if ( !sr.isRelative() ) {
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this.ldapUrl = identifier.substring(0,identifier.lastIndexOf("/")+1);
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this.ldapBase = identifier.substring(identifier.indexOf(",")+1);
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identifier = identifier.substring(identifier.lastIndexOf("/")+1,
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identifier.indexOf(","));
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}
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util.debugMessage("Found: " + identifier);
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return identifier;
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}
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} catch (InvalidSearchFilterException e) {}
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filter = "(uid=" + user + ")";
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answer = ctx.search("", filter, ctls);
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if (answer.hasMore()) {
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SearchResult sr = (SearchResult)answer.next();
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identifier = sr.getName();
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if ( !sr.isRelative() ) {
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this.ldapUrl = identifier.substring(0,identifier.lastIndexOf("/")+1);
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this.ldapBase = identifier.substring(identifier.indexOf(",")+1);
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identifier = identifier.substring(identifier.lastIndexOf("/")+1,
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identifier.indexOf(","));
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}
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util.debugMessage("Found: " + identifier);
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} else {
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//Attributes matchAttrs2 = new BasicAttributes(true);
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//matchAttrs2.put(new BasicAttribute("cn", user));
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//NamingEnumeration answer2 = ctx.search("", matchAttrs2);
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filter = "(cn=" + user + ")";
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NamingEnumeration answer2 = ctx.search("", filter, ctls);
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if (answer2.hasMore()) {
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SearchResult sr = (SearchResult)answer2.next();
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identifier = sr.getName();
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if ( !sr.isRelative() ) {
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this.ldapUrl = identifier.substring(0,identifier.lastIndexOf("/")+1);
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this.ldapBase = identifier.substring(identifier.indexOf(",")+1);
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identifier = identifier.substring(identifier.lastIndexOf("/")+1,
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identifier.indexOf(","));
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}
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util.debugMessage("Found: " + identifier);
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} else {
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//Attributes matchAttrs3 = new BasicAttributes(true);
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//matchAttrs3.put(new BasicAttribute("sn", user));
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//NamingEnumeration answer3 = ctx.search("", matchAttrs3);
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filter = "(sn=" + user + ")";
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NamingEnumeration answer3 = ctx.search("", filter, ctls);
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if (answer3.hasMore()) {
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SearchResult sr = (SearchResult)answer3.next();
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identifier = sr.getName();
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if ( !sr.isRelative() ) {
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this.ldapUrl = identifier.substring(0,identifier.lastIndexOf("/")+1);
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this.ldapBase = identifier.substring(identifier.indexOf(",")+1);
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identifier = identifier.substring(identifier.lastIndexOf("/")+1,
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identifier.indexOf(","));
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}
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util.debugMessage("Found: " + identifier);
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}
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}
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}
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// Close the context when we're done the initial search
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ctx.close();
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} catch (NamingException e) {
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util.debugMessage("Naming exception while getting dn: " + e);
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throw new NamingException(
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"Naming exception in AuthLdap.getIdentifyingName: " + e);
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}
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//System.out.println("context: " + identifier);
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return identifier;
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}
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329
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330
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/**
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* Get all users from the authentication service
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*/
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public String[] getUsers(String user, String password)
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334
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throws ConnectException
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{
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336
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String[] users = null;
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337
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338
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// Identify service provider to use
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339
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Hashtable env = new Hashtable(11);
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340
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env.put(Context.INITIAL_CONTEXT_FACTORY,
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"com.sun.jndi.ldap.LdapCtxFactory");
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env.put(Context.REFERRAL, referral);
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343
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env.put(Context.PROVIDER_URL, ldapUrl + ldapBase);
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344
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345
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try {
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346
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// Create the initial directory context
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348
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DirContext ctx = new InitialDirContext(env);
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349
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|
350
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// Specify the ids of the attributes to return
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351
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String[] attrIDs = {"uid"};
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352
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353
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// Specify the attributes to match.
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// Users are objects that have the attribute objectclass=InetOrgPerson.
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Attributes matchAttrs = new BasicAttributes(true); // ignore case
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matchAttrs.put(new BasicAttribute("objectclass", "inetOrgPerson"));
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357
|
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358
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// Search for objects in the current context
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359
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NamingEnumeration enum = ctx.search("", matchAttrs, attrIDs);
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360
|
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361
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// Print the users
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362
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Vector uvec = new Vector();
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363
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while (enum.hasMore()) {
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364
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SearchResult sr = (SearchResult)enum.next();
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365
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Attributes attrs = sr.getAttributes();
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366
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NamingEnumeration enum1 = attrs.getAll(); // only "uid" attr
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367
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while (enum1.hasMore()) {
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368
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Attribute attr = (Attribute)enum1.next();
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369
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uvec.add(attr.get());
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370
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}
|
371
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}
|
372
|
|
373
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// initialize users[]; fill users[]
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374
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users = new String[uvec.size()];
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375
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for (int i=0; i < uvec.size(); i++) {
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376
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users[i] = (String)uvec.elementAt(i);
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377
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}
|
378
|
|
379
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// Close the context when we're done
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380
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ctx.close();
|
381
|
|
382
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} catch (NamingException e) {
|
383
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System.err.println("Problem getting users in AuthLdap.getUsers:" + e);
|
384
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throw new ConnectException(
|
385
|
"Problem getting users in AuthLdap.getUsers:" + e);
|
386
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}
|
387
|
|
388
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return users;
|
389
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}
|
390
|
|
391
|
/**
|
392
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* Get the users for a particular group from the authentication service
|
393
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*/
|
394
|
public String[] getUsers(String user, String password, String group)
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395
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throws ConnectException
|
396
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{
|
397
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String[] users = null;
|
398
|
|
399
|
// Identify service provider to use
|
400
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Hashtable env = new Hashtable(11);
|
401
|
env.put(Context.INITIAL_CONTEXT_FACTORY,
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402
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"com.sun.jndi.ldap.LdapCtxFactory");
|
403
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env.put(Context.REFERRAL, referral);
|
404
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env.put(Context.PROVIDER_URL, ldapUrl + ldapBase);
|
405
|
|
406
|
try {
|
407
|
|
408
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// Create the initial directory context
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409
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DirContext ctx = new InitialDirContext(env);
|
410
|
|
411
|
// Specify the ids of the attributes to return
|
412
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String[] attrIDs = {"uniquemember"};
|
413
|
|
414
|
// Specify the attributes to match.
|
415
|
// Groups are objects with attribute objectclass=groupofuniquenames.
|
416
|
Attributes matchAttrs = new BasicAttributes(true); // ignore case
|
417
|
matchAttrs.put(new BasicAttribute("objectclass", "groupofuniquenames"));
|
418
|
matchAttrs.put(new BasicAttribute("cn", group));
|
419
|
|
420
|
// Search for objects in the current context
|
421
|
NamingEnumeration enum = ctx.search("", matchAttrs, attrIDs);
|
422
|
|
423
|
// Print the users
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424
|
Vector uvec = new Vector();
|
425
|
while (enum.hasMore()) {
|
426
|
SearchResult sr = (SearchResult)enum.next();
|
427
|
Attributes attrs = sr.getAttributes();
|
428
|
// return all attributes (only "uniquemember" attr)
|
429
|
NamingEnumeration enum1 = attrs.getAll();
|
430
|
while (enum1.hasMore()) {
|
431
|
Attribute attr = (Attribute)enum1.next();
|
432
|
// return all values of that attribute
|
433
|
NamingEnumeration enum2 = attr.getAll();
|
434
|
while (enum2.hasMore()) {
|
435
|
// get DN of a member
|
436
|
String memberDN = (String)enum2.next();
|
437
|
try {
|
438
|
// we actually need RDN of the member
|
439
|
// try to get RDN (UID) of the member in case of a user
|
440
|
String memberID = getUserID(memberDN);
|
441
|
if ( memberID != null ) {
|
442
|
uvec.add(memberID);
|
443
|
// CURRENTLY WE DON'T SUPPORT SUBGROUPING, THUS
|
444
|
// IGNORE SUBGROUPS AS MEMBERS OF THE GROUP
|
445
|
// // this is a group, not user
|
446
|
// // try to get RDN (CN) of the group
|
447
|
// } else {
|
448
|
// memberID = getGroupID(memberDN);
|
449
|
// uvec.add(memberID);
|
450
|
}
|
451
|
} catch (NamingException ne) {}
|
452
|
}
|
453
|
}
|
454
|
}
|
455
|
|
456
|
// initialize users[]; fill users[]
|
457
|
users = new String[uvec.size()];
|
458
|
for (int i=0; i < uvec.size(); i++) {
|
459
|
users[i] = (String)uvec.elementAt(i);
|
460
|
}
|
461
|
|
462
|
// Close the context when we're done
|
463
|
ctx.close();
|
464
|
|
465
|
} catch (NamingException e) {
|
466
|
System.err.println("Problem getting users for a group in AuthLdap.getUsers:" + e);
|
467
|
throw new ConnectException(
|
468
|
"Problem getting users for a group in AuthLdap.getUsers:" + e);
|
469
|
}
|
470
|
|
471
|
return users;
|
472
|
}
|
473
|
|
474
|
/**
|
475
|
* Get UID by DN of a member
|
476
|
*/
|
477
|
private String getUserID(String dn)
|
478
|
throws NamingException
|
479
|
{
|
480
|
String[] users = null;
|
481
|
|
482
|
// Identify service provider to use
|
483
|
Hashtable env = new Hashtable(11);
|
484
|
env.put(Context.INITIAL_CONTEXT_FACTORY,
|
485
|
"com.sun.jndi.ldap.LdapCtxFactory");
|
486
|
env.put(Context.REFERRAL, referral);
|
487
|
env.put(Context.PROVIDER_URL, ldapUrl); // + ldapBase);
|
488
|
|
489
|
try {
|
490
|
|
491
|
// Create the initial directory context
|
492
|
DirContext ctx = new InitialDirContext(env);
|
493
|
|
494
|
// Specify the ids of the attributes to return
|
495
|
String[] attrIDs = {"uid"};
|
496
|
|
497
|
// Ask for "uid" attributes of the user
|
498
|
Attributes attrs = ctx.getAttributes(dn, attrIDs);
|
499
|
|
500
|
// Print all of the attributes (only "uid" attr)
|
501
|
Vector uvec = new Vector();
|
502
|
NamingEnumeration en = attrs.getAll();
|
503
|
while (en.hasMore()) {
|
504
|
Attribute att = (Attribute)en.next();
|
505
|
Vector values = new Vector();
|
506
|
String attName = att.getID();
|
507
|
NamingEnumeration attvalues = att.getAll();
|
508
|
while (attvalues.hasMore()) {
|
509
|
String value = (String)attvalues.next();
|
510
|
values.add(value);
|
511
|
}
|
512
|
uvec.add(values.elementAt(0));
|
513
|
}
|
514
|
|
515
|
// initialize users[]; fill users[]
|
516
|
users = new String[uvec.size()];
|
517
|
for (int i=0; i < uvec.size(); i++) {
|
518
|
users[i] = (String)uvec.elementAt(i);
|
519
|
}
|
520
|
|
521
|
// Close the context when we're done
|
522
|
ctx.close();
|
523
|
|
524
|
} catch (NamingException ne) {
|
525
|
System.err.println("Problem getting userID by \"dn\" in AuthLdap.getUserID:" + ne);
|
526
|
throw ne;
|
527
|
}
|
528
|
|
529
|
if ( users.length > 0 ) {
|
530
|
return users[0];
|
531
|
}
|
532
|
return null;
|
533
|
}
|
534
|
|
535
|
/**
|
536
|
* Get CN by DN of a member
|
537
|
*/
|
538
|
private String getGroupID(String dn)
|
539
|
throws NamingException
|
540
|
{
|
541
|
String[] groups = null;
|
542
|
|
543
|
// Identify service provider to use
|
544
|
Hashtable env = new Hashtable(11);
|
545
|
env.put(Context.INITIAL_CONTEXT_FACTORY,
|
546
|
"com.sun.jndi.ldap.LdapCtxFactory");
|
547
|
env.put(Context.REFERRAL, referral);
|
548
|
env.put(Context.PROVIDER_URL, ldapUrl); // + ldapBase);
|
549
|
|
550
|
try {
|
551
|
|
552
|
// Create the initial directory context
|
553
|
DirContext ctx = new InitialDirContext(env);
|
554
|
|
555
|
// Specify the ids of the attributes to return
|
556
|
String[] attrIDs = {"cn"};
|
557
|
|
558
|
// Ask for "uid" attributes of the user
|
559
|
Attributes attrs = ctx.getAttributes(dn, attrIDs);
|
560
|
|
561
|
// Print all of the attributes (only "cn" attr)
|
562
|
Vector uvec = new Vector();
|
563
|
NamingEnumeration en = attrs.getAll();
|
564
|
while (en.hasMore()) {
|
565
|
Attribute att = (Attribute)en.next();
|
566
|
Vector values = new Vector();
|
567
|
String attName = att.getID();
|
568
|
NamingEnumeration attvalues = att.getAll();
|
569
|
while (attvalues.hasMore()) {
|
570
|
String value = (String)attvalues.next();
|
571
|
values.add(value);
|
572
|
}
|
573
|
uvec.add(values.elementAt(0));
|
574
|
}
|
575
|
|
576
|
// initialize users[]; fill users[]
|
577
|
groups = new String[uvec.size()];
|
578
|
for (int i=0; i < uvec.size(); i++) {
|
579
|
groups[i] = (String)uvec.elementAt(i);
|
580
|
}
|
581
|
|
582
|
// Close the context when we're done
|
583
|
ctx.close();
|
584
|
|
585
|
} catch (NamingException ne) {
|
586
|
System.err.println("Problem getting groupID by \"dn\" in AuthLdap.getGroupID:" + ne);
|
587
|
throw ne;
|
588
|
}
|
589
|
|
590
|
if ( groups.length > 0 ) {
|
591
|
return groups[0];
|
592
|
}
|
593
|
return null;
|
594
|
}
|
595
|
|
596
|
/**
|
597
|
* Get all groups from the authentication service
|
598
|
*/
|
599
|
public String[] getGroups(String user, String password)
|
600
|
throws ConnectException
|
601
|
{
|
602
|
String[] groups = null;
|
603
|
|
604
|
// Identify service provider to use
|
605
|
Hashtable env = new Hashtable(11);
|
606
|
env.put(Context.INITIAL_CONTEXT_FACTORY,
|
607
|
"com.sun.jndi.ldap.LdapCtxFactory");
|
608
|
env.put(Context.REFERRAL, referral);
|
609
|
env.put(Context.PROVIDER_URL, ldapUrl + ldapBase);
|
610
|
|
611
|
try {
|
612
|
|
613
|
// Create the initial directory context
|
614
|
DirContext ctx = new InitialDirContext(env);
|
615
|
|
616
|
// Specify the ids of the attributes to return
|
617
|
String[] attrIDs = {"cn"};
|
618
|
|
619
|
// Specify the attributes to match.
|
620
|
// Groups are objects with attribute objectclass=groupofuniquenames.
|
621
|
Attributes matchAttrs = new BasicAttributes(true); // ignore case
|
622
|
matchAttrs.put(new BasicAttribute("objectclass", "groupofuniquenames"));
|
623
|
|
624
|
// Search for objects in the current context
|
625
|
NamingEnumeration enum = ctx.search("", matchAttrs, attrIDs);
|
626
|
|
627
|
// Print the users
|
628
|
Vector uvec = new Vector();
|
629
|
while (enum.hasMore()) {
|
630
|
SearchResult sr = (SearchResult)enum.next();
|
631
|
Attributes attrs = sr.getAttributes();
|
632
|
NamingEnumeration enum1 = attrs.getAll(); // only "cn" attr
|
633
|
while (enum1.hasMore()) {
|
634
|
Attribute attr = (Attribute)enum1.next();
|
635
|
uvec.add(attr.get());
|
636
|
}
|
637
|
}
|
638
|
|
639
|
// initialize groups[] and fill it
|
640
|
groups = new String[uvec.size()];
|
641
|
for (int i=0; i < uvec.size(); i++) {
|
642
|
groups[i] = (String)uvec.elementAt(i);
|
643
|
}
|
644
|
|
645
|
// Close the context when we're done
|
646
|
ctx.close();
|
647
|
|
648
|
} catch (NamingException e) {
|
649
|
System.err.println("Problem getting groups in AuthLdap.getGroups:" + e);
|
650
|
throw new ConnectException(
|
651
|
"Problem getting groups in AuthLdap.getGroups:" + e);
|
652
|
}
|
653
|
|
654
|
return groups;
|
655
|
}
|
656
|
|
657
|
/**
|
658
|
* Get the groups for a particular user from the authentication service
|
659
|
*/
|
660
|
public String[] getGroups(String user, String password, String foruser)
|
661
|
throws ConnectException
|
662
|
{
|
663
|
String[] groups = null;
|
664
|
|
665
|
// Identify service provider to use
|
666
|
Hashtable env = new Hashtable(11);
|
667
|
env.put(Context.INITIAL_CONTEXT_FACTORY,
|
668
|
"com.sun.jndi.ldap.LdapCtxFactory");
|
669
|
env.put(Context.REFERRAL, referral);
|
670
|
env.put(Context.PROVIDER_URL, ldapUrl + ldapBase);
|
671
|
|
672
|
try {
|
673
|
|
674
|
// Create the initial directory context
|
675
|
DirContext ctx = new InitialDirContext(env);
|
676
|
|
677
|
// Specify the ids of the attributes to return
|
678
|
String[] attrIDs = {"cn"};
|
679
|
|
680
|
// Specify the attributes to match.
|
681
|
// Groups are objects with attribute objectclass=groupofuniquenames.
|
682
|
// and have attribute uniquemember: uid=foruser,ldapbase.
|
683
|
Attributes matchAttrs = new BasicAttributes(true); // ignore case
|
684
|
matchAttrs.put(new BasicAttribute("objectclass", "groupofuniquenames"));
|
685
|
String dn = getIdentifyingName(foruser, ldapUrl, ldapBase);
|
686
|
// System.out.println("Identifying Name: " + dn);
|
687
|
matchAttrs.put(new BasicAttribute("uniquemember",dn+","+ldapBase));
|
688
|
// Search for objects in the current context
|
689
|
NamingEnumeration enum = ctx.search("", matchAttrs, attrIDs);
|
690
|
|
691
|
// Print the users
|
692
|
Vector uvec = new Vector();
|
693
|
while (enum.hasMore()) {
|
694
|
SearchResult sr = (SearchResult)enum.next();
|
695
|
Attributes attrs = sr.getAttributes();
|
696
|
NamingEnumeration enum1 = attrs.getAll(); // only "cn" attr
|
697
|
while (enum1.hasMore()) {
|
698
|
Attribute attr = (Attribute)enum1.next();
|
699
|
uvec.add(attr.get());
|
700
|
}
|
701
|
}
|
702
|
|
703
|
// initialize groups[] and fill it
|
704
|
groups = new String[uvec.size()];
|
705
|
for (int i=0; i < uvec.size(); i++) {
|
706
|
groups[i] = (String)uvec.elementAt(i);
|
707
|
}
|
708
|
|
709
|
// Close the context when we're done
|
710
|
ctx.close();
|
711
|
|
712
|
} catch (NamingException e) {
|
713
|
System.err.println("Problem getting groups in AuthLdap.getGroups:" + e);
|
714
|
throw new ConnectException(
|
715
|
"Problem getting groups for a user in AuthLdap.getGroups:" + e);
|
716
|
}
|
717
|
|
718
|
return groups;
|
719
|
}
|
720
|
|
721
|
/**
|
722
|
* Get attributes describing a user or group
|
723
|
*
|
724
|
* @param user the user for which the attribute list is requested
|
725
|
* @returns HashMap a map of attribute name to a Vector of values
|
726
|
*/
|
727
|
public HashMap getAttributes(String foruser)
|
728
|
throws ConnectException
|
729
|
{
|
730
|
return getAttributes(null, null, foruser);
|
731
|
}
|
732
|
|
733
|
/**
|
734
|
* Get attributes describing a user or group
|
735
|
*
|
736
|
* @param user the user for which the attribute list is requested
|
737
|
* @param authuser the user for authenticating against the service
|
738
|
* @param password the password for authenticating against the service
|
739
|
* @returns HashMap a map of attribute name to a Vector of values
|
740
|
*/
|
741
|
public HashMap getAttributes(String user, String password, String foruser)
|
742
|
throws ConnectException
|
743
|
{
|
744
|
HashMap attributes = new HashMap();
|
745
|
String ldapUrl = this.ldapUrl;
|
746
|
String ldapBase = this.ldapBase;
|
747
|
String userident = foruser;
|
748
|
try {
|
749
|
this.ldapBase = userident.substring(userident.indexOf(",")+1);
|
750
|
userident = userident.substring(0,userident.indexOf(","));
|
751
|
} catch (StringIndexOutOfBoundsException e) {}
|
752
|
|
753
|
// Identify service provider to use
|
754
|
Hashtable env = new Hashtable(11);
|
755
|
env.put(Context.INITIAL_CONTEXT_FACTORY,
|
756
|
"com.sun.jndi.ldap.LdapCtxFactory");
|
757
|
env.put(Context.REFERRAL, referral);
|
758
|
env.put(Context.PROVIDER_URL, ldapUrl + ldapBase);
|
759
|
|
760
|
try {
|
761
|
|
762
|
// Create the initial directory context
|
763
|
DirContext ctx = new InitialDirContext(env);
|
764
|
|
765
|
// Find out the identifying attribute for the user
|
766
|
userident = getIdentifyingName(userident,ldapUrl,ldapBase);
|
767
|
|
768
|
// Ask for all attributes of the user
|
769
|
Attributes attrs = ctx.getAttributes(userident);
|
770
|
|
771
|
// Print all of the attributes
|
772
|
NamingEnumeration en = attrs.getAll();
|
773
|
while (en.hasMore()) {
|
774
|
Attribute att = (Attribute)en.next();
|
775
|
Vector values = new Vector();
|
776
|
String attName = att.getID();
|
777
|
NamingEnumeration attvalues = att.getAll();
|
778
|
while (attvalues.hasMore()) {
|
779
|
String value = (String)attvalues.next();
|
780
|
values.add(value);
|
781
|
}
|
782
|
attributes.put(attName, values);
|
783
|
}
|
784
|
|
785
|
// Close the context when we're done
|
786
|
ctx.close();
|
787
|
} catch (NamingException e) {
|
788
|
System.err.println("Problem getting attributes in AuthLdap.getAttributes:"
|
789
|
+ e);
|
790
|
throw new ConnectException(
|
791
|
"Problem getting attributes in AuthLdap.getAttributes:" + e);
|
792
|
}
|
793
|
|
794
|
return attributes;
|
795
|
}
|
796
|
|
797
|
/**
|
798
|
* Get list of all subtrees holding Metacat's groups and users
|
799
|
* starting from the Metacat LDAP root,
|
800
|
* i.e. ldap://dev.nceas.ucsb.edu/dc=ecoinformatics,dc=org
|
801
|
*/
|
802
|
private Hashtable getSubtrees(String user, String password,
|
803
|
String ldapUrl, String ldapBase)
|
804
|
throws ConnectException
|
805
|
{
|
806
|
Hashtable trees = new Hashtable();
|
807
|
|
808
|
// Identify service provider to use
|
809
|
Hashtable env = new Hashtable(11);
|
810
|
env.put(Context.INITIAL_CONTEXT_FACTORY,
|
811
|
"com.sun.jndi.ldap.LdapCtxFactory");
|
812
|
env.put(Context.REFERRAL, referral);
|
813
|
env.put(Context.PROVIDER_URL, ldapUrl + ldapBase);
|
814
|
|
815
|
try {
|
816
|
|
817
|
// Create the initial directory context
|
818
|
DirContext ctx = new InitialDirContext(env);
|
819
|
|
820
|
// Specify the ids of the attributes to return
|
821
|
String[] attrIDs = {"o","ref"};
|
822
|
SearchControls ctls = new SearchControls();
|
823
|
ctls.setReturningAttributes(attrIDs);
|
824
|
ctls.setSearchScope(SearchControls.SUBTREE_SCOPE);
|
825
|
|
826
|
// Specify the attributes to match.
|
827
|
// Subtrees from the main server are found as objects with attribute
|
828
|
// objectclass=organization or objectclass=referral to the subtree
|
829
|
// resided on other server.
|
830
|
String filter = "(|(objectclass=organization)(objectclass=referral))";
|
831
|
|
832
|
// Search for objects in the current context
|
833
|
NamingEnumeration enum = ctx.search("", filter, ctls);
|
834
|
|
835
|
// Print the subtrees' <ldapURL, baseDN>
|
836
|
while (enum.hasMore()) {
|
837
|
SearchResult sr = (SearchResult)enum.next();
|
838
|
Attributes attrs = sr.getAttributes();
|
839
|
NamingEnumeration enum1 = attrs.getAll(); // "dc" and "ref" attrs
|
840
|
if (enum1.hasMore()) {
|
841
|
Attribute attr = (Attribute)enum1.next();
|
842
|
String attrValue = (String)attr.get();
|
843
|
String attrName = (String)attr.getID();
|
844
|
System.out.println(attrName + "=" + attrValue);
|
845
|
if ( enum1.hasMore() ) {
|
846
|
attr = (Attribute)enum1.next();
|
847
|
String refValue = (String)attr.get();
|
848
|
String refName = (String)attr.getID();
|
849
|
System.out.println(refName + "=" + refValue);
|
850
|
if ( ldapBase.startsWith(refName + "=" + refValue) ) {
|
851
|
trees.put(ldapBase,
|
852
|
attrValue.substring(0,attrValue.lastIndexOf("/")+1) );
|
853
|
} else {
|
854
|
trees.put(refName + "=" + refValue + "," + ldapBase,
|
855
|
attrValue.substring(0,attrValue.lastIndexOf("/")+1) );
|
856
|
}
|
857
|
System.out.println("REFERRAL:" + attrValue);
|
858
|
} else if ( ldapBase.startsWith(attrName + "=" + attrValue) ) {
|
859
|
trees.put(ldapBase, ldapUrl);
|
860
|
} else {
|
861
|
trees.put(attrName + "=" + attrValue + "," + ldapBase, ldapUrl);
|
862
|
System.out.println(ldapUrl + attrName + "=" + attrValue + "," + ldapBase);
|
863
|
}
|
864
|
}
|
865
|
}
|
866
|
|
867
|
// Close the context when we're done
|
868
|
ctx.close();
|
869
|
|
870
|
} catch (NamingException e) {
|
871
|
System.err.println("Problem getting subtrees in AuthLdap.getSubtrees:" + e);
|
872
|
throw new ConnectException(
|
873
|
"Problem getting subtrees in AuthLdap.getSubtrees:" + e);
|
874
|
}
|
875
|
|
876
|
System.out.println("number of subtrees:" + trees.size());
|
877
|
return trees;
|
878
|
}
|
879
|
|
880
|
/**
|
881
|
* Get all groups and users from authentication scheme.
|
882
|
* The output is formatted in XML.
|
883
|
* @param user the user which requests the information
|
884
|
* @param password the user's password
|
885
|
*/
|
886
|
public String getPrincipals(String user, String password)
|
887
|
throws ConnectException
|
888
|
{
|
889
|
StringBuffer out = new StringBuffer();
|
890
|
Vector usersIn = new Vector();
|
891
|
|
892
|
out.append("<?xml version=\"1.0\"?>\n");
|
893
|
out.append("<principals>\n");
|
894
|
|
895
|
/*
|
896
|
* get all subtrees first in the current dir context
|
897
|
* and then the Metacat users under them
|
898
|
*/
|
899
|
Hashtable subtrees = getSubtrees(user,password,this.ldapUrl,this.ldapBase);
|
900
|
|
901
|
Enumeration enum = subtrees.keys();
|
902
|
while ( enum.hasMoreElements() ) {
|
903
|
this.ldapBase = (String)enum.nextElement();
|
904
|
this.ldapUrl = (String)subtrees.get(ldapBase);
|
905
|
|
906
|
out.append(" <authSystem URI=\"" +
|
907
|
this.ldapUrl + this.ldapBase + "\">\n");
|
908
|
|
909
|
// get all groups for directory context
|
910
|
String[] groups = getGroups(user, password);
|
911
|
|
912
|
// for the groups and users that belong to them
|
913
|
if ( groups.length > 0 ) {
|
914
|
for (int i=0; i < groups.length; i++ ) {
|
915
|
out.append(" <group>\n");
|
916
|
out.append(" <groupname>" + groups[i] + "</groupname>\n");
|
917
|
String[] usersForGroup = getUsers(user,password,groups[i]);
|
918
|
for (int j=0; j < usersForGroup.length; j++ ) {
|
919
|
usersIn.addElement(usersForGroup[j]);
|
920
|
out.append(" <user>\n");
|
921
|
out.append(" <username>" + usersForGroup[j] + "</username>\n");
|
922
|
out.append(" </user>\n");
|
923
|
}
|
924
|
out.append(" </group>\n");
|
925
|
}
|
926
|
}
|
927
|
// for the users not belonging to any group
|
928
|
String[] users = getUsers(user, password);
|
929
|
for (int j=0; j < users.length; j++ ) {
|
930
|
if ( !usersIn.contains(users[j]) ) {
|
931
|
out.append(" <user>\n");
|
932
|
out.append(" <username>" + users[j] + "</username>\n");
|
933
|
out.append(" </user>\n");
|
934
|
}
|
935
|
}
|
936
|
|
937
|
out.append(" </authSystem>\n");
|
938
|
if ( !usersIn.isEmpty() ) {
|
939
|
usersIn.removeAllElements();
|
940
|
usersIn.trimToSize();
|
941
|
}
|
942
|
|
943
|
}
|
944
|
out.append("</principals>");
|
945
|
return out.toString();
|
946
|
}
|
947
|
|
948
|
/**
|
949
|
* Test method for the class
|
950
|
*/
|
951
|
public static void main(String[] args) {
|
952
|
|
953
|
// Provide a user, such as: "Matt Jones", or "jones"
|
954
|
String user = args[0];
|
955
|
String password = args[1];
|
956
|
|
957
|
AuthLdap authservice = new AuthLdap();
|
958
|
|
959
|
boolean isValid = false;
|
960
|
try {
|
961
|
isValid = authservice.authenticate(user, password);
|
962
|
if (isValid) {
|
963
|
System.out.println("Authentication successful for: " + user );
|
964
|
System.out.println(" ");
|
965
|
|
966
|
} else {
|
967
|
System.out.println("Authentication failed for: " + user);
|
968
|
}
|
969
|
|
970
|
if (isValid) {
|
971
|
//String group = args[2];
|
972
|
HashMap userInfo = authservice.getAttributes(user, password, "knb");
|
973
|
// Print all of the attributes
|
974
|
Iterator attList = (Iterator)(((Set)userInfo.keySet()).iterator());
|
975
|
while (attList.hasNext()) {
|
976
|
String att = (String)attList.next();
|
977
|
Vector values = (Vector)userInfo.get(att);
|
978
|
Iterator attvalues = values.iterator();
|
979
|
while (attvalues.hasNext()) {
|
980
|
String value = (String)attvalues.next();
|
981
|
System.out.println(att + ": " + value);
|
982
|
}
|
983
|
}
|
984
|
|
985
|
}
|
986
|
|
987
|
// get the whole list groups and users in XML format
|
988
|
if (isValid) {
|
989
|
authservice = new AuthLdap();
|
990
|
String out = authservice.getPrincipals(user, password);
|
991
|
java.io.File f = new java.io.File("principals.xml");
|
992
|
java.io.FileWriter fw = new java.io.FileWriter(f);
|
993
|
java.io.BufferedWriter buff = new java.io.BufferedWriter(fw);
|
994
|
buff.write(out);
|
995
|
buff.flush();
|
996
|
buff.close();
|
997
|
fw.close();
|
998
|
}
|
999
|
|
1000
|
} catch (ConnectException ce) {
|
1001
|
System.err.println(ce.getMessage());
|
1002
|
} catch (java.io.IOException ioe) {
|
1003
|
System.err.println("I/O Error writing to file principals.txt");
|
1004
|
}
|
1005
|
}
|
1006
|
}
|