struts-cvs

[<mr...@us...>]

Update of /cvsroot/struts/struts-resume/src/common/org/appfuse/common/util
In directory sc8-pr-cvs1:/tmp/cvs-serv28341

Added Files:
	BaseUtil.java StringUtil.java 
Log Message:


--- NEW FILE: BaseUtil.java ---
package org.appfuse.common.util;

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

/**
 * BaseUtil is used as a parent class for all other classes in the 
 * common.utils package.
 * @author Matt Raible (matt@raibledesigns)
 */
public class BaseUtil {

    /**
     * The <code>Log</code> instance for this class.
     */
    protected Log log = LogFactory.getLog(BaseUtil.class);
    
}
--- NEW FILE: StringUtil.java ---
package org.appfuse.common.util;

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

import java.security.MessageDigest;


/**
 * String Utility Class This is used to encode passwords programmatically
 *
 * @author Matt Raible
 * @version $Revision: 1.1 $ $Date: 2003/01/08 05:51:57 $
 */
public class StringUtil extends BaseUtil
{
    //~ Static fields/initializers =============================================

    /** The <code>Log</code> instance for this class. */
    private static Log log = LogFactory.getLog(StringUtil.class);

    //~ Methods ================================================================

    /**
     * Encode a string using algorithm specified in web.xml and return the
     * resulting encrypted password. If exception, the plain credentials
     * string is returned
     *
     * @param password Password or other credentials to use in authenticating
     *        this username
     * @param algorithm Algorithm used to do the digest
     *
     * @return DOCUMENT ME!
     */
    public static String encodePassword(String password, String algorithm)
    {
        byte[] unencodedPassword = password.getBytes();

        MessageDigest md = null;

        try {
            // first create an instance, given the provider
            md = MessageDigest.getInstance(algorithm);
        } catch (Exception e) {
            log.error("Exception: " + e);

            return password;
        }

        md.reset();

        // call the update method one or more times
        // (useful when you don't know the size of your data, eg. stream)
        md.update(unencodedPassword);

        // now calculate the hash
        byte[] encodedPassword = md.digest();

        StringBuffer buf = new StringBuffer();

        for (int i = 0; i < encodedPassword.length; i++) {
            if (((int) encodedPassword[i] & 0xff) < 0x10) {
                buf.append("0");
            }

            buf.append(Long.toString((int) encodedPassword[i] & 0xff, 16));
        }

        return buf.toString();
    }
}