微信跳一跳 解密 JAVA 代码

package com; import okhttp3.*; import org.bouncycastle.util.encoders.Base64; import org.json.JSONArray; import org.json.JSONObject; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.text.DecimalFormat; /** * @author: Seayon * @date: 2017/12/31 * @time: 21:11 */ public class Util { private static final MediaType JSON = MediaType.parse("application/json;charset=utf-8"); private static final String WXGAME_URL = "https://mp.weixin.qq.com/wxagame/wxagame_settlement"; private static final int TIMES = 1000; private static final String SESSIONID_ERROR = "SESSIONID有误，请检查"; private static String game_data = null; private static final DecimalFormat decimalFormat1 = new DecimalFormat("#.###"); private static final DecimalFormat decimalFormat2 = new DecimalFormat("#.##"); private static final DecimalFormat decimalFormat3 = new DecimalFormat("###"); private static String getActionData(String sessionKey, String encryptedData, String iv) { byte[] sessionKeyBy = sessionKey.getBytes(); byte[] en = new byte[0]; try { en = encryptedData.getBytes("UTF-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } byte[] ivBy = iv.getBytes(); byte[] enc = Pkcs7Encoder.encryptOfDiyIV(en, sessionKeyBy, ivBy); return new String(Base64.toBase64String(enc)); } static { JSONArray action = new JSONArray(); JSONArray musicList = new JSONArray(); JSONArray touchList = new JSONArray(); for (int i = 10000; i > 0; i--) { musicList.put(false); JSONArray actionData = new JSONArray(); double first = Double.valueOf(decimalFormat1.format(Math.random())); Double second = Double.valueOf(decimalFormat2.format(Math.random() * 2)); boolean booleFlag = i / 5000 == 0 ? true : false; actionData.put(first); actionData.put(second); actionData.put(booleFlag); action.put(actionData); JSONArray touchListData = new JSONArray(); double tFirst = Double.valueOf(decimalFormat3.format(250 - (Math.random() * 10))); double tSecond = Double.valueOf(decimalFormat3.format(670 - (Math.random() * 20))); touchListData.put(tFirst); touchListData.put(tSecond); touchList.put(touchListData); } game_data = "action\":" + action.toString() + ",\"" + "musicList\":" + musicList.toString() + ",\"" + "touchList\":" + touchList.toString() + ",\"version\":1}"; } public static String postData(String score, String session_id) { String result = null; JSONObject actionDataInfo = new JSONObject(); actionDataInfo.put("score", Integer.valueOf(score)); actionDataInfo.put("times", TIMES); actionDataInfo.put("game_data", "{\"seed\":" + System.currentTimeMillis() + "123" + ",\"" + game_data); String AES_KEY = null; try { AES_KEY = session_id.substring(0, 16); } catch (Exception e) { return SESSIONID_ERROR; } String AES_IV = AES_KEY; OkHttpClient okHttpClient = new OkHttpClient(); String actionData = Util.getActionData(AES_KEY, actionDataInfo.toString(), AES_IV); String json = "{\"base_req\":{\"session_id\":\"" + session_id + "\",\"fast\":1},\"action_data\":\"" + actionData + "\"}"; RequestBody requestBody = RequestBody.create(JSON, json); Request request = new Request.Builder() .url(WXGAME_URL) .header("Accept", "*/*") .header("Accept-Language", "zh-cn") .header("User-Agent", "Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_1 like Mac OS X) AppleWebKit/603.1.30 (KHTML, like Gecko) Mobile/14E304 MicroMessenger/6.6.1 NetType/WIFI Language/zh_CN") .header("Content-Type", "application/json") .header("Referer", "https://servicewechat.com/wx7c8d593b2c3a7703/5/page-frame.html") .header("Host", "mp.weixin.qq.com") .header("Connection", "keep-alive") .post(requestBody) .build(); ResponseBody responseBody = null; try { responseBody = okHttpClient.newCall(request).execute().body(); result = responseBody.string(); } catch (IOException e) { e.printStackTrace(); } finally { if (responseBody != null) { responseBody.close(); } } return result; } }