java版UC加密

/* ========================================================================
 * JCommon : a free general purpose class library for the Java(tm) platform
 * ========================================================================
 *
 * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jcommon/index.html
 *
 * 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.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * -------------------------------------
 * AbstractElementDefinitionHandler.java
 * -------------------------------------
 * (C)opyright 2003, by Thomas Morgner and Contributors.
 *
 * Original Author:  Kevin Kelley <[e-mail]> -
 *                   30718 Rd. 28, La Junta, CO, 81050  USA.                                                         //
 *
 * $Id: Base64.java,v 1.5 2004/01/01 23:59:29 mungady Exp $
 *
 * Changes
 * -------------------------
 * 23.09.2003 : Initial version
 *
 */
package igrand.common;
 
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.CharArrayWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
 
/**
 * Provides encoding of raw bytes to base64-encoded characters, and
 * decoding of base64 characters to raw bytes.
 * date: 06 August 1998
 * modified: 14 February 2000
 * modified: 22 September 2000
 */
public class Base64 {
 
    /**
     * returns an array of base64-encoded characters to represent the
     * passed data array.
     *
     * @param data the array of bytes to encode
     * @return base64-coded character array.
     */
    public static char[] encode(byte[] data) {
        char[] out = new char[((data.length + 2) / 3) * 4];
 
        //
        // 3 bytes encode to 4 chars.  Output is always an even
        // multiple of 4 characters.
        //
        for (int i = 0, index = 0; i < data.length; i += 3, index += 4) {
            boolean quad = false;
            boolean trip = false;
 
            int val = (0xFF & data[i]);
            val <<= 8;
            if ((i + 1) < data.length) {
                val |= (0xFF & data[i + 1]);
                trip = true;
            }
            val <<= 8;
            if ((i + 2) < data.length) {
                val |= (0xFF & data[i + 2]);
                quad = true;
            }
            out[index + 3] = alphabet[(quad ? (val & 0x3F) : 64)];
            val >>= 6;
            out[index + 2] = alphabet[(trip ? (val & 0x3F) : 64)];
            val >>= 6;
            out[index + 1] = alphabet[val & 0x3F];
            val >>= 6;
            out[index + 0] = alphabet[val & 0x3F];
        }
        return out;
    }
 
    /**
     * Decodes a BASE-64 encoded stream to recover the original
     * data. White space before and after will be trimmed away,
     * but no other manipulation of the input will be performed.
     *
     * As of version 1.2 this method will properly handle input
     * containing junk characters (newlines and the like) rather
     * than throwing an error. It does this by pre-parsing the
     * input and generating from that a count of VALID input
     * characters.
     **/
    public static byte[] decode(char[] data) {
        // as our input could contain non-BASE64 data (newlines,
        // whitespace of any sort, whatever) we must first adjust
        // our count of USABLE data so that...
        // (a) we don't misallocate the output array, and
        // (b) think that we miscalculated our data length
        //     just because of extraneous throw-away junk
 
        int tempLen = data.length;
        for (int ix = 0; ix < data.length; ix++) {
            if ((data[ix] > 255) || codes[data[ix]] < 0)
                --tempLen; // ignore non-valid chars and padding
        }
        // calculate required length:
        //  -- 3 bytes for every 4 valid base64 chars
        //  -- plus 2 bytes if there are 3 extra base64 chars,
        //     or plus 1 byte if there are 2 extra.
 
        int len = (tempLen / 4) * 3;
        if ((tempLen % 4) == 3)
            len += 2;
        if ((tempLen % 4) == 2)
            len += 1;
 
        byte[] out = new byte[len];
 
 
        int shift = 0; // # of excess bits stored in accum
        int accum = 0; // excess bits
        int index = 0;
 
        // we now go through the entire array (NOT using the 'tempLen' value)
        for (int ix = 0; ix < data.length; ix++) {
            int value = (data[ix] > 255) ? -1 : codes[data[ix]];
 
            if (value >= 0)// skip over non-code
            {
                accum <<= 6; // bits shift up by 6 each time thru
                shift += 6; // loop, with new bits being put in
                accum |= value; // at the bottom.
                if (shift >= 8)// whenever there are 8 or more shifted in,
                {
                    shift -= 8; // write them out (from the top, leaving any
                    out[index++] = // excess at the bottom for next iteration.
                        (byte) ((accum >> shift) & 0xff);
                }
            }
            // we will also have skipped processing a padding null byte ('=') here;
            // these are used ONLY for padding to an even length and do not legally
            // occur as encoded data. for this reason we can ignore the fact that
            // no index++ operation occurs in that special case: the out[] array is
            // initialized to all-zero bytes to start with and that works to our
            // advantage in this combination.
        }
 
        // if there is STILL something wrong we just have to throw up now!
        if (index != out.length) {
            throw new Error("Miscalculated data length (wrote " +
                index + " instead of " + out.length + ")");
        }
 
        return out;
    }
 
 
    //
    // code characters for values 0..63
    //
    private static char[] alphabet =
        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=".toCharArray();
 
    //
    // lookup table for converting base64 characters to value in range 0..63
    //
    private static byte[] codes = new byte[256];
 
    static {
        for (int i = 0; i < 256; i++)
            codes[i] = -1;
        for (int i = 'A'; i <= 'Z'; i++)
            codes[i] = (byte) (i - 'A');
        for (int i = 'a'; i <= 'z'; i++)
            codes[i] = (byte) (26 + i - 'a');
        for (int i = '0'; i <= '9'; i++)
            codes[i] = (byte) (52 + i - '0');
        codes['+'] = 62;
        codes['/'] = 63;
    }
 
 
 
 
    ///////////////////////////////////////////////////
    // remainder (main method and helper functions) is
    // for testing purposes only, feel free to clip it.
    ///////////////////////////////////////////////////
 
    public static void main(String[] args) {
        boolean decode = false;
 
        if (args.length == 0) {
            System.out.println("usage:  java Base64 [-d[ecode]] filename下午");
            System.exit(0);
        }
        for (int i = 0; i < args.length; i++) {
            if ("-decode".equalsIgnoreCase(args[i]))
                decode = true;
            else if ("-d".equalsIgnoreCase(args[i]))
                decode = true;
        }
 
        String filename = args[args.length - 1];
        File file = new File(filename);
        if (!file.exists()) {
            System.out.println("Error:  file '" + filename + "' doesn't exist!");
            System.exit(0);
        }
 
        if (decode) {
            char[] encoded = readChars(file);
            byte[] decoded = decode(encoded);
            writeBytes(file, decoded);
        }
        else {
            byte[] decoded = readBytes(file);
            char[] encoded = encode(decoded);
            writeChars(file, encoded);
        }
    }
 
    private static byte[] readBytes(File file) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try {
            InputStream fis = new FileInputStream(file);
            InputStream is = new BufferedInputStream(fis);
            int count = 0;
            byte[] buf = new byte[16384];
            while ((count = is.read(buf)) != -1) {
                if (count > 0)
                    baos.write(buf, 0, count);
            }
            is.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
 
        return baos.toByteArray();
    }
 
    private static char[] readChars(File file) {
        CharArrayWriter caw = new CharArrayWriter();
        try {
            Reader fr = new FileReader(file);
            Reader in = new BufferedReader(fr);
            int count = 0;
            char[] buf = new char[16384];
            while ((count = in.read(buf)) != -1) {
                if (count > 0)
                    caw.write(buf, 0, count);
            }
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
 
        return caw.toCharArray();
    }
 
    private static void writeBytes(File file, byte[] data) {
        try {
            OutputStream fos = new FileOutputStream(file);
            OutputStream os = new BufferedOutputStream(fos);
            os.write(data);
            os.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
 
    private static void writeChars(File file, char[] data) {
        try {
            Writer fos = new FileWriter(file);
            Writer os = new BufferedWriter(fos);
            os.write(data);
            os.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
    ///////////////////////////////////////////////////
    // end of test code.
    ///////////////////////////////////////////////////
 
}
 
 
 
package igrand.common;
 
import java.net.URLEncoder;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Map;
 
/**
 * ================================================
 * Discuz! Ucenter API for JAVA
 * ================================================
 * 构造本接口运行所需要PHP的内置函数
 */
public abstract class PHPFunctions {
    //JAVA EXTRA METHOD
     
    protected String urlencode(String value){
        return URLEncoder.encode(value);
    }
    protected String md5(String input){
        MessageDigest md;
        try {
            md = MessageDigest.getInstance("MD5");
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            return null;
        }   
        return byte2hex(md.digest(input.getBytes()));
    }
    protected String md5(long input){
        return md5(String.valueOf(input));
    }
    protected String base64_decode(String input){
        try {
            return new String(Base64.decode(input.toCharArray()),"iso-8859-1");
        } catch (Exception e) {
            return e.getMessage();
        }
    }
     
    protected String base64_encode(String input){
        try {
            return new String(Base64.encode(input.getBytes("iso-8859-1")));
        } catch (Exception e) {
            return e.getMessage();
        }
    }
    protected String byte2hex(byte[] b) {
        StringBuffer hs = new StringBuffer();
        String stmp = "";
        for (int n = 0; n < b.length; n++) {
            stmp = (java.lang.Integer.toHexString(b[n] & 0XFF));
            if (stmp.length() == 1)
                hs.append("0").append(stmp);
            else
                hs.append(stmp);
        }
        return hs.toString();
    }
    protected String substr(String input,int begin, int length){
        return input.substring(begin, begin+length);
    }
    protected String substr(String input,int begin){
        if(begin>0){
            return input.substring(begin);
        }else{
            return input.substring(input.length()+ begin);
        }
    }
    protected long microtime(){
        return System.currentTimeMillis();
    }
    protected long time(){
        return System.currentTimeMillis()/1000;
    }   
    protected String sprintf(String format, long input){
        String temp = "0000000000"+input;
        return temp.substring(temp.length()-10);
    }
     
}
 
package igrand.common;
import hmfms.util.MD5;
 
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.Socket;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.security.MessageDigest;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
 
 
/**
 * ================================================
 * Discuz! Ucenter API for JAVA
 * ================================================
 * UC Client 通用调用该类来实现与UC Server之间的通信。
 * 该类实现与UC Server通信的所有接口函数
 *
 * 更多信息：http://code.google.com/p/discuz-ucenter-api-for-java/
 * 作者：梁平 ([e-mail])
 * 创建时间：2009-2-20
 */
public class Client extends PHPFunctions{
 
     
    /**
     * 字符串加密以及解密函数
     *
     * @param string $string    原文或者密文
     * @param string $operation 操作(ENCODE | DECODE), 默认为 DECODE
     * @param string $key       密钥
     * @param int $expiry       密文有效期, 加密时候有效， 单位 秒，0 为永久有效
     * @return string       处理后的 原文或者 经过 base64_encode 处理后的密文
     *
     * @example
     *
     *  $a = authcode('abc', 'ENCODE', 'key');
     *  $b = authcode($a, 'DECODE', 'key');  // $b(abc)
     *
     *  $a = authcode('abc', 'ENCODE', 'key', 3600);
     *  $b = authcode('abc', 'DECODE', 'key'); // 在一个小时内，$b(abc)，否则 $b 为空
     */
    public String uc_authcode(String $string, String $operation){
        return uc_authcode($string, $operation, null);
    }
    public String uc_authcode(String $string, String $operation, String $key){
        return uc_authcode($string, $operation, $key, 0);
    }
    public String uc_authcode(String $string, String $operation, String $key,int $expiry ) {
 
        int $ckey_length = 4;   //note 随机密钥长度 取值 0-32;
                    //note 加入随机密钥，可以令密文无任何规律，即便是原文和密钥完全相同，加密结果也会每次不同，增大破解难度。
                    //note 取值越大，密文变动规律越大，密文变化 = 16 的 $ckey_length 次方
                    //note 当此值为 0 时，则不产生随机密钥
 
        $key = md5( $key!=null ? $key : "sida");
        String $keya = md5(substr($key, 0, 16));
        String $keyb = md5(substr($key, 16, 16));
        String $keyc = $ckey_length > 0? ($operation.equals("DECODE") ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : "";
 
        String $cryptkey = $keya + md5( $keya + $keyc);
        int $key_length = $cryptkey.length();
 
        $string = $operation.equals("DECODE") ? base64_decode(substr($string, $ckey_length)) : sprintf("0d", $expiry>0 ? $expiry + time() : 0)+substr(md5($string+$keyb), 0, 16)+$string;
        int $string_length = $string.length();
 
        StringBuffer $result1 = new StringBuffer();
 
        int[] $box = new int[256];
        for(int i=0;i<256;i++){
            $box[i] = i;
        }
 
        int[] $rndkey = new int[256];
        for(int $i = 0; $i <= 255; $i++) {
            $rndkey[$i] = (int)$cryptkey.charAt($i % $key_length);
        }
 
        int $j=0;
        for(int $i = 0; $i < 256; $i++) {
            $j = ($j + $box[$i] + $rndkey[$i]) % 256;
            int $tmp = $box[$i];
            $box[$i] = $box[$j];
            $box[$j] = $tmp;
        }
 
        $j=0;
        int $a=0;
        for(int $i = 0; $i < $string_length; $i++) {
            $a = ($a + 1) % 256;
            $j = ($j + $box[$a]) % 256;
            int $tmp = $box[$a];
            $box[$a] = $box[$j];
            $box[$j] = $tmp;
             
            $result1.append((char)( ((int)$string.charAt($i)) ^ ($box[($box[$a] + $box[$j]) % 256])));
             
        }
 
        if($operation.equals("DECODE")) {
            String $result = $result1.substring(0, $result1.length());
            if((Integer.parseInt(substr($result.toString(), 0, 10)) == 0 || Long.parseLong(substr($result.toString(), 0, 10)) - time() > 0) && substr($result.toString(), 10, 16).equals( substr(md5(substr($result.toString(), 26)+ $keyb), 0, 16))) {
                return substr($result.toString(), 26);
            } else {
                return "";
            }
        } else {
            return $keyc+base64_encode($result1.toString()).replaceAll("=", "");
        }
    }
 
 
     
    public static void main(String[] args) {
        Client client=new Client();
        String userName=client.uc_authcode(URLEncoder.encode("jianghaices"), "ENCODE", "360fa",0);
        System.out.println("userName:"+userName);
         
            System.out.println(URLDecoder.decode(client.uc_authcode(userName, "DECODE", "360fa",0)));
 
     
             
               
    }
     
}