com.hbc.api.gateway.alizhifu.util.AlipayCallBackValidator.java Source code

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Here is the source code for com.hbc.api.gateway.alizhifu.util.AlipayCallBackValidator.java

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/*
 * COPYRIGHT (C) 2015-2016,LUOSHUAI. ALL RIGHTS RESERVED.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files
 * (the Software?), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, 
 * publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
 * subject to the following conditions: 
 *
 *   a).The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software!
 *   b).Any individual or entity would be granted by LUOSHUAI before using this Software!
 *  
 * Please contact through email luoshuai@live.com if you need additional informations OR have any questions.
 *
 * THE SOFTWARE IS PROVIDED AS IS?, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * Author: Luoshuai 
 * Revision: 1.0
 * 
 *  
 */
package com.hbc.api.gateway.alizhifu.util;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import com.hbc.api.gateway.alizhifu.config.AlipayConfig;
import com.hbc.api.gateway.alizhifu.sign.AliPayMD5;

/**
 * @author Luoshuai
 *
 */
@Component
public class AlipayCallBackValidator {

    @Autowired
    private AlipayConfig alipayConfig;

    private final String HTTPS_VERIFY_URL = "https://mapi.alipay.com/gateway.do?service=notify_verify&";

    private static final String SIGN_TYPE_OF_MD5 = "MD5";
    private static final String SIGN_TYPE_OF_RSA = "RSA";
    private static final String SIGN_ENCODING = "utf-8";

    public boolean signValidate(HttpServletRequest request) throws UnsupportedEncodingException {
        Map<String, String> parmmap = this.getParameterMap(request);
        Map<String, String> filterMap = this.parmFilter(parmmap);
        String cleanLink = this.createLinkString(filterMap);

        String alisign = request.getParameter("sign");
        String signType = request.getParameter("sign_type");
        if (StringUtils.isBlank(alisign) || StringUtils.isBlank(signType)) {
            return Boolean.FALSE;
        }

        if (signType.equalsIgnoreCase(SIGN_TYPE_OF_MD5)) {
            return AliPayMD5.verify(cleanLink, alisign, alipayConfig.securityCode, SIGN_ENCODING);
        } else if (signType.equalsIgnoreCase(SIGN_TYPE_OF_RSA)) {
            StringBuffer spayurl = new StringBuffer();
            for (String keystr : filterMap.keySet()) {
                spayurl = spayurl.append(keystr + "=" + URLDecoder.decode(filterMap.get(keystr), "UTF-8") + "&");
            }
            String dspayurl = spayurl.substring(0, spayurl.length() - 1);
            //mysign = RSA.sign(dspayurl, alipayConfig.privateKey, "UTF-8");
        }
        return Boolean.FALSE;
    }

    public boolean identifyValidate(HttpServletRequest request) {
        return Boolean.FALSE;
    }

    public boolean dataValidate(HttpServletRequest request) {
        return Boolean.FALSE;
    }

    public String createLinkString(Map<String, String> params) {
        List<String> keys = new ArrayList<String>(params.keySet());
        Collections.sort(keys);
        String prestr = "";
        for (int i = 0; i < keys.size(); i++) {
            String key = keys.get(i);
            String value = params.get(key);

            if (i == keys.size() - 1) { //??&
                prestr = prestr + key + "=" + value;
            } else {
                prestr = prestr + key + "=" + value + "&";
            }
        }
        return prestr;
    }

    public Map<String, String> parmFilter(Map<String, String> fullArray) {
        Map<String, String> result = new HashMap<String, String>();

        if (fullArray != null && fullArray.size() > 0) {
            for (String key : fullArray.keySet()) {
                String value = fullArray.get(key);
                if (value == null || value.equals("") || key.equalsIgnoreCase("sign")
                        || key.equalsIgnoreCase("sign_type")) {
                    continue;
                }
                result.put(key, value);
            }
            return result;
        } else {
            return result;
        }
    }

    public static Map<String, String> getParameterMap(HttpServletRequest request) {
        Set<String> keyset = request.getParameterMap().keySet();
        Map<String, String> result = new HashMap<String, String>();
        for (String key : keyset) {
            String[] values = request.getParameterValues(key);
            for (int i = 0; i < values.length; i++) {
                String value = values[i];
                result.put(key, value);
            }
        }
        return result;
    }

}