org.smartfrog.avalanche.client.sf.apps.utils.SystemUtils.java Source code

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Here is the source code for org.smartfrog.avalanche.client.sf.apps.utils.SystemUtils.java

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/**
(C) Copyright 1998-2007 Hewlett-Packard Development Company, LP
    
This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
    
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
    
You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    
For more information: www.smartfrog.org
*/
/*
 * Created on Mar 16, 2006
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package org.smartfrog.avalanche.client.sf.apps.utils;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Enumeration;
import java.util.Properties;

/**
 * @author sandya
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class SystemUtils {
    private static Log log = LogFactory.getLog(SystemUtils.class);

    /**
     * 
     */
    public SystemUtils() {
        super();
        // TODO Auto-generated constructor stub
    }

    public static void addUser(String user, Properties props) throws UtilsException {

        if ((null == user) || (user.length() == 0)) {
            log.error("User name cannot be null");
            throw new UtilsException("User name cannot be null");
        }

        String cmd = "adduser";

        if ((null == props) || (props.isEmpty())) {
            log.error("Please provide user information....");
            throw new UtilsException("Please provide user information....");
        }

        String passwd = (String) props.getProperty("-p");
        if ((null == passwd) || (passwd.length() == 0)) {
            log.error("Password is not provided....Cannot create user");
            throw new UtilsException("Password is not provided...." + "Cannot create user");
        }
        String epasswd = jcrypt.crypt("Tb", passwd);
        if (epasswd.length() == 0) {
            log.error("Error in encrypting passwd...");
            throw new UtilsException("Error in encrypting passwd...");
        }
        props.setProperty("-p", epasswd);
        props.setProperty("-c", "User-" + user);

        String key = null;
        String value = null;
        Enumeration e = props.keys();
        while (e.hasMoreElements()) {
            key = (String) e.nextElement();
            value = (String) props.getProperty(key);
            if ((null != value) || (value.length() != 0))
                cmd += " " + key + " " + value;
            else
                cmd += " " + key;
        }

        cmd += " " + user;

        Process p = null;
        Runtime rt = Runtime.getRuntime();
        BufferedReader cmdError = null;
        int exitVal = 0;
        try {
            p = rt.exec(cmd);
            exitVal = p.waitFor();
            cmdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));
            if (exitVal != 0) {
                String err = "Error in adding user " + user + "... returned with exit value 0 : ";
                log.error(err);
                String line = null;
                while ((line = cmdError.readLine()) != null) {
                    log.error(line);
                    err += line;
                }
                throw new UtilsException(err);
            }
        } catch (IOException ioe) {
            log.error(ioe);
            throw new UtilsException(ioe);
        } catch (InterruptedException ie) {
            log.error(ie);
            throw new UtilsException(ie);
        }

        log.info("User " + user + " added successfully");
    }

    public static String os() {
        return System.getProperty("os.name");
    }

    public static String arch() {
        return System.getProperty("os.arch");
    }

    public static void main(String args[]) {
        Properties props = new Properties();
        props.setProperty("-d", "/home/test");
        props.setProperty("-m", "");
        props.setProperty("-s", "/bin/bash");
        props.setProperty("-p", "testUser");

        try {
            SystemUtils.addUser("test", props);
        } catch (UtilsException ue) {
            log.error("Error in creating user", ue);
        }
    }
}