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Java example source code file (NTCredentials.java)

This example source code file (NTCredentials.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

illegalargumentexception, immutable, ntcredentials, ntuserprincipal, override, security, string, stringbuilder, username:password, util

The NTCredentials.java example source code

/*
 * ====================================================================
 *
 *  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
 * <http://www.apache.org/>.
 *
 */

package org.apache.http.auth;

import java.security.Principal;
import java.util.Locale;

import org.apache.http.annotation.Immutable;

import org.apache.http.util.LangUtils;

/** 
 * {@link Credentials} implementation for Microsoft Windows platforms that includes 
 * Windows specific attributes such as name of the domain the user belongs to.
 * 
 * @since 4.0
 */
@Immutable
public class NTCredentials implements Credentials {

    /** The user principal  */
    private final NTUserPrincipal principal;

    /** Password */
    private final String password;
    
    /** The host the authentication request is originating from.  */
    private final String workstation;

    /**
     * The constructor with the fully qualified username and password combined 
     * string argument.
     *
     * @param usernamePassword the domain/username:password formed string
     */
    public NTCredentials(String usernamePassword) {
        super();
        if (usernamePassword == null) {
            throw new IllegalArgumentException("Username:password string may not be null");            
        }
        String username;
        int atColon = usernamePassword.indexOf(':');
        if (atColon >= 0) {
            username = usernamePassword.substring(0, atColon);
            this.password = usernamePassword.substring(atColon + 1);
        } else {
            username = usernamePassword;
            this.password = null;
        }
        int atSlash = username.indexOf('/');
        if (atSlash >= 0) {
            this.principal = new NTUserPrincipal(
                    username.substring(0, atSlash).toUpperCase(Locale.ENGLISH),
                    username.substring(atSlash + 1));
        } else {
            this.principal = new NTUserPrincipal(
                    null,
                    username.substring(atSlash + 1));
        }
        this.workstation = null;
    }

    /**
     * Constructor.
     * @param userName The user name.  This should not include the domain to authenticate with.
     * For example: "user" is correct whereas "DOMAIN\\user" is not.
     * @param password The password.
     * @param workstation The workstation the authentication request is originating from. 
     * Essentially, the computer name for this machine.
     * @param domain The domain to authenticate within.
     */
    public NTCredentials(
            final String userName, 
            final String password, 
            final String workstation,
            final String domain) {
        super();
        if (userName == null) {
            throw new IllegalArgumentException("User name may not be null");
        }
        this.principal = new NTUserPrincipal(domain, userName);
        this.password = password;
        if (workstation != null) {
            this.workstation = workstation.toUpperCase(Locale.ENGLISH);
        } else {
            this.workstation = null;
        }
    }

    public Principal getUserPrincipal() {
        return this.principal;
    }
    
    public String getUserName() {
        return this.principal.getUsername();
    }
    
    public String getPassword() {
        return this.password;
    }

    /**
     * Retrieves the name to authenticate with.
     *
     * @return String the domain these credentials are intended to authenticate with.
     */
    public String getDomain() {
        return this.principal.getDomain();
    }

    /**
     * Retrieves the workstation name of the computer originating the request.
     *
     * @return String the workstation the user is logged into.
     */
    public String getWorkstation() {
        return this.workstation;
    }
    
    @Override
    public int hashCode() {
        int hash = LangUtils.HASH_SEED;
        hash = LangUtils.hashCode(hash, this.principal);
        hash = LangUtils.hashCode(hash, this.workstation);
        return hash;
    }

    @Override
    public boolean equals(Object o) {
        if (o == null) return false;
        if (this == o) return true;
        if (o instanceof NTCredentials) {
            NTCredentials that = (NTCredentials) o;
            if (LangUtils.equals(this.principal, that.principal)
                    && LangUtils.equals(this.workstation, that.workstation)) {
                return true;
            }
        }
        return false;
    }

    @Override
    public String toString() {
        StringBuilder buffer = new StringBuilder();
        buffer.append("[principal: ");
        buffer.append(this.principal);
        buffer.append("][workstation: ");
        buffer.append(this.workstation);
        buffer.append("]");
        return buffer.toString();
    }

}

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