com.cangqu.gallery.server.base.utils.EncodeUtils.java Source code

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Here is the source code for com.cangqu.gallery.server.base.utils.EncodeUtils.java

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/**
 * Copyright (c) 2005-2009 springside.org.cn
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 *
 * $Id: EncodeUtils.java,v 1.1 2014/11/10 06:38:51 daiyl Exp $
 */
package com.cangqu.gallery.server.base.utils;

import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.binary.Hex;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.lang.StringEscapeUtils;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;

/**
 * ?????.
 * <p/>
 * ?Commons-Codec,Commons-Lang?JDK???.
 *
 * @author calvin
 */
public class EncodeUtils {

    private static final String DEFAULT_URL_ENCODING = "UTF-8";

    /**
     * Hex?.
     */
    public static String hexEncode(byte[] input) {
        return Hex.encodeHexString(input);
    }

    /**
     * Hex?.
     */
    public static byte[] hexDecode(String input) {
        try {
            return Hex.decodeHex(input.toCharArray());
        } catch (DecoderException e) {
            throw new IllegalStateException("Hex Decoder exception", e);
        }
    }

    /**
     * Base64?.
     */
    public static String base64Encode(byte[] input) {
        return new String(Base64.encodeBase64(input));
    }

    /**
     * Base64?, URL(Base64URL?+,/=, ?RFC3548).
     */
    public static String base64UrlSafeEncode(byte[] input) {
        return Base64.encodeBase64URLSafeString(input);
    }

    /**
     * Base64?.
     */
    public static byte[] base64Decode(String input) {
        return Base64.decodeBase64(input);
    }

    /**
     * URL ?, EncodeUTF-8.
     */
    public static String urlEncode(String input) {
        return urlEncode(input, DEFAULT_URL_ENCODING);
    }

    /**
     * URL ?.
     */
    public static String urlEncode(String input, String encoding) {
        try {
            return URLEncoder.encode(input, encoding);
        } catch (UnsupportedEncodingException e) {
            throw new IllegalArgumentException("Unsupported Encoding Exception", e);
        }
    }

    /**
     * URL ?, EncodeUTF-8.
     */
    public static String urlDecode(String input) {
        return urlDecode(input, DEFAULT_URL_ENCODING);
    }

    /**
     * URL ?.
     */
    public static String urlDecode(String input, String encoding) {
        try {
            return URLDecoder.decode(input, encoding);
        } catch (UnsupportedEncodingException e) {
            throw new IllegalArgumentException("Unsupported Encoding Exception", e);
        }
    }

    /**
     * Html ?.
     */
    public static String htmlEscape(String html) {
        return StringEscapeUtils.escapeHtml(html);
    }

    /**
     * Html ?.
     */
    public static String htmlUnescape(String htmlEscaped) {
        return StringEscapeUtils.unescapeHtml(htmlEscaped);
    }

    /**
     * Xml ?.
     */
    public static String xmlEscape(String xml) {
        return StringEscapeUtils.escapeXml(xml);
    }

    /**
     * Xml ?.
     */
    public static String xmlUnescape(String xmlEscaped) {
        return StringEscapeUtils.unescapeXml(xmlEscaped);
    }

    /**
     * MD5?
     * @param str ?
     * @return MD5
     */
    public static String md5(String str) {
        return DigestUtils.md5Hex(str);
    }

    /**
     * SHA256?
     * @param str ?
     * @return SHA256
     */
    public static String sha(String str) {

        return DigestUtils.sha256Hex(str);
    }

    /** 
     *   
     */
    public static String convertMD5(String inStr) {

        char[] a = inStr.toCharArray();
        for (int i = 0; i < a.length; i++) {
            a[i] = (char) (a[i] ^ 't');
        }
        String s = new String(a);
        return s;

    }
}