cn.binarywang.wx.miniapp.bean.xpay.WxMaXPaySigParams Maven / Gradle / Ivy
package cn.binarywang.wx.miniapp.bean.xpay;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import me.chanjar.weixin.common.util.SignUtils;
import org.apache.commons.lang3.StringUtils;
import java.io.Serializable;
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class WxMaXPaySigParams implements Serializable {
private static final long serialVersionUID = 7495157056049312108L;
private String sessionKey;
private String appKey;
public String signUriWithBoth(String url, String postData) {
final String sig = this.calcSig(postData);
final String paySig = this.calcPaySig(url, postData);
return String.format(url, paySig, sig);
}
public String signUriWithPay(String url, String postData) {
final String paySig = this.calcPaySig(url, postData);
return String.format(url, paySig);
}
public String signUriWithUser(String url, String postData) {
final String sig = this.calcSig(postData);
final String uri = String.format(url, sig);
return uri;
}
protected String convUrlToSigUri(String url) {
if (url == null) return "";
String t = url.replace("https://api.weixin.qq.com", "");
if (t.contains("?")) {
t = t.substring(0, t.indexOf("?"));
}
return t;
}
public String calcPaySig(String url, String postBody) {
String ak = StringUtils.trimToEmpty(this.appKey);
final String sigUri = convUrlToSigUri(url);
final String paySig = calcPaySignature(sigUri, postBody, ak);
return paySig.toLowerCase();
}
public String calcSig(String postBody) {
String sk = StringUtils.trimToEmpty(this.sessionKey);
return calcSignature(postBody, sk);
}
/**
* 用户登录态signature签名算法
*
* @param postBody - http POST的数据包体
* @param sessionKey - 当前用户有效的session_key，参考auth.code2Session接口
* @return 用户登录态签名signature
*/
protected String calcSignature(String postBody, String sessionKey) {
return SignUtils.createHmacSha256Sign(postBody, sessionKey);
}
/**
* pay_sig签名算法
*
* @param uri - 当前请求的API的uri部分，不带query_string 例如：/xpay/query_user_balance
* @param postBody - http POST的数据包体
* @param appKey - 对应环境的AppKey
* @return 支付请求签名pay_sig
*/
protected String calcPaySignature(String uri, String postBody, String appKey) {
String needSignData = uri + '&' + postBody;
return SignUtils.createHmacSha256Sign(needSignData, appKey);
}
}