苹果内购IAP服务端验证-java篇

苹果内购：

只要你在苹果系统购买APP中虚拟物品（虚拟货币，VIP充值等），必须通过内购方式进行支付，苹果和商家进行三七开

验证模式有两种：

Validating Receipts With the App Store 通过访问苹果接口进行验证。
Validating Receipts Locally 本地代码解码进行验证

官方验证文档地址：https://developer.apple.com/library/archive/releasenotes/General/ValidateAppStoreReceipt/Chapters/ValidateRemotely.html#//apple_ref/doc/uid/TP40010573-CH104-SW1

官方文档说明

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我这里主要说一下服务端验证模式，大致流程为

app进行支付，然后收到苹果的收据（一串很长的BASE64编码的字符串）
app请求服务端，将收据给到服务端，服务端拿到收据请求苹果服务器验证收据是否为真
服务端验证收据真伪，验证当前支付的交易是否成功，成功则处理支付成功的业务逻辑

进行代码前，首先使用postman将收据发送给苹果服务器，熟悉一下返回的数据结构

image.png

重点说一下我的理解

在官方文档和各个私人博客中都没有明确说明要验证的内容，百度一整天得到的验证逻辑为
苹果服务器只验证了收据的真伪，而收据包含多个交易的信息。
所以，我们验证当status字段为0(即收据为真)，且当前交易ID（app传递到后台）在收据交易列表中,即可认为交易支付成功
同时app传递当前支付产品的ID（我们内部的商品ID），处理该商品的订单

注意：这个接口可以多次请求，所以应当将交易ID与订单进行绑定，防止一个交易生成多个订单

上验证代码，首先来一个百度的工具类，功能为组装请求数据，发送http请求


import javax.net.ssl.*;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Locale;/*** 苹果IAP内购验证工具类* Created by wangqichang on 2019/2/26.*/
public class IosVerifyUtil {private static class TrustAnyTrustManager implements X509TrustManager {public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public X509Certificate[] getAcceptedIssuers() {return new X509Certificate[] {};}}private static class TrustAnyHostnameVerifier implements HostnameVerifier {public boolean verify(String hostname, SSLSession session) {return true;}}private static final String url_sandbox = "https://sandbox.itunes.apple.com/verifyReceipt";private static final String url_verify = "https://buy.itunes.apple.com/verifyReceipt";/*** 苹果服务器验证** @param receipt*            账单* @url 要验证的地址* @return null 或返回结果 沙盒 https://sandbox.itunes.apple.com/verifyReceipt**/public static String buyAppVerify(String receipt,int type) {//环境判断 线上/开发环境用不同的请求链接String url = "";if(type==0){url = url_sandbox; //沙盒测试}else{url = url_verify; //线上测试}//String url = EnvUtils.isOnline() ?url_verify : url_sandbox;try {SSLContext sc = SSLContext.getInstance("SSL");sc.init(null, new TrustManager[] { new TrustAnyTrustManager() }, new java.security.SecureRandom());URL console = new URL(url);HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();conn.setSSLSocketFactory(sc.getSocketFactory());conn.setHostnameVerifier(new TrustAnyHostnameVerifier());conn.setRequestMethod("POST");conn.setRequestProperty("content-type", "text/json");conn.setRequestProperty("Proxy-Connection", "Keep-Alive");conn.setDoInput(true);conn.setDoOutput(true);BufferedOutputStream hurlBufOus = new BufferedOutputStream(conn.getOutputStream());String str = String.format(Locale.CHINA, "{\"receipt-data\":\"" + receipt + "\"}");//拼成固定的格式传给平台hurlBufOus.write(str.getBytes());hurlBufOus.flush();InputStream is = conn.getInputStream();BufferedReader reader = new BufferedReader(new InputStreamReader(is));String line = null;StringBuffer sb = new StringBuffer();while ((line = reader.readLine()) != null) {sb.append(line);}return sb.toString();} catch (Exception ex) {System.out.println("苹果服务器异常");ex.printStackTrace();}return null;}/*** 用BASE64加密** @param str* @return*/public static String getBASE64(String str) {byte[] b = str.getBytes();String s = null;if (b != null) {s = new sun.misc.BASE64Encoder().encode(b);}return s;}}

验证逻辑代码

/*** 苹果内购校验* @param priceId 会员价格ID* @param transactionId 苹果内购交易ID* @param payload 校验体（base64字符串）* @return*/@PostMapping("/iospay")public Map<String, Object> iosPay(Long priceId,String transactionId, String payload) {log.info("苹果内购校验开始，交易ID：" + transactionId + " base64校验体：" + payload);Shipper shipper = getLoginShipper();if (shipper == null) {return failure("未登录");}//线上环境验证String verifyResult = IosVerifyUtil.buyAppVerify(payload, 1);if (verifyResult == null) {return failure("苹果验证失败，返回数据为空");} else {log.info("线上，苹果平台返回JSON:" + verifyResult);JSONObject appleReturn = JSONObject.parseObject(verifyResult);String states = appleReturn.getString("status");//无数据则沙箱环境验证if ("21007".equals(states)) {verifyResult = IosVerifyUtil.buyAppVerify(payload, 0);log.info("沙盒环境，苹果平台返回JSON:" + verifyResult);appleReturn = JSONObject.parseObject(verifyResult);states = appleReturn.getString("status");}log.info("苹果平台返回值：appleReturn" + appleReturn);// 前端所提供的收据是有效的    验证成功if (states.equals("0")) {String receipt = appleReturn.getString("receipt");JSONObject returnJson = JSONObject.parseObject(receipt);String inApp = returnJson.getString("in_app");List<HashMap> inApps = JSONObject.parseArray(inApp, HashMap.class);if (!CollectionUtils.isEmpty(inApps)) {ArrayList<String> transactionIds = new ArrayList<String>();for (HashMap app : inApps) {transactionIds.add((String) app.get("transaction_id"));}//交易列表包含当前交易，则认为交易成功if (transactionIds.contains(transactionId)) {//处理业务逻辑VipOrder vipOrder = vipOrderService.saveVipOrder(shipper, priceId, EnumPayType.APPLE_IN_APP_PURCHASES.getValue(),transactionId);vipOrderService.paySuccess(vipOrder.getOrderCode(),null);log.info("交易成功，新增并处理订单：{}",vipOrder.getOrderCode());return success("充值成功");}return failure("当前交易不在交易列表中");}return failure("未能获取获取到交易列表");} else {return failure("支付失败，错误码：" + states);}}}

同学们可以直接copy，注意删除我个人的业务代码即可
这个时候ios开发提出了一个问题，当支付完成，还没有发起验证，app闪退或关机时，岂不是无法生成订单？
这个时候可以先保存到本地，每次app启动判断本地是否有尚未验证的交易，有则发起验证请求。验证返回成功则删除本地记录

作者：老王_KICHUN
链接：https://www.jianshu.com/p/976fc6090cfa
来源：简书
著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。