Android爬虫比赛 第一关解析

function hook_ChallengeOneFragment(){    //访问内部类函数    Java.perform(function(){          var InnerClasses = Java.use("com.yuanrenxue.match2022.fragment.challenge.ChallengeOneFragment");        // console.log(InnerClasses);        InnerClasses.lambda$initListeners$2.overload('o00O000.OooOO0O').implementation = function(age){            console.log("this.page.value:",this.page.value);//查看page的值            console.log("age.OooO00o().longValue() :",age.OooO00o().longValue());//查看值            console.log("age:",age)//查看参数              var res = this.lambda$initListeners$2(age)//运行函数            console.log("res:",res,"type:",res.$className);//返回值和返回值类型              var Map = Java.use('retrofit2.adapter.rxjava2.BodyObservable');//根据返回值类型创建对象            var NewP = Java.cast(res, Map); //将返回值转成相应类型            console.log("NewP:",NewP.toString());//输出返回值            return res;        };      });}

function hook_SignClass(){    //访问内部类函数    Java.perform(function(){          // 访问内部类时，在当前类后加$符号，后跟内部类名        var InnerClasses = Java.use("com.yuanrenxue.match2022.security.Sign");        // console.log(InnerClasses);        InnerClasses.sign.overload('[B').implementation = function(arge1){            console.log("参数和参数类型:",arge1,arge1.$className);//数组类型一般会返回null            console.log("数组类型转码：",JSON.stringify(arge1));//数组类型可尝试使用json解析            var res = this.sign(arge1);//运行函数            // return true;            console.log("res",res);//返回值            return res;        };      });}

new Sign().sign(sb.toString().getBytes(StandardCharsets.UTF_8))

time_ = '1652932157's = 'page=1' + time_print("s:",s)bArr = [x for x in bytearray(s,'utf_8')]print("bArr:",bArr)  #s: page=11652932157#bArr: [112, 97, 103, 101, 61, 49, 49, 54, 53, 50, 57, 51, 50, 49, 53, 55]

#!/usr/bin/env python# -*- coding: utf-8 -*-  import fridaimport requestsimport time  #发送接收frida_js信息def on_message(message, data):    if message['type'] == 'send':        print("[*] {0}".format(message['payload']))    else:        print(message)  js = open('hook.js', 'r', encoding='utf8').read()   #读取frida脚本  session = frida.get_remote_device().attach('com.yuanrenxue.match2022')#根据包名启动APP  script = session.create_script(js)script.on('message', on_message)script.load()#加载frida脚本    if __name__ == '__main__':      time_ = int(time.time())#获取世家戳      header2 = {         'Accept-Language':'zh-CN,zh;q=0.8',         'User-Agent':'Mozilla/5.0 (Linux; U; Android 10; zh-cn; Mi9 Pro 5G Build/QKQ1.190825.002) AppleWebKit/533.1 (KHTML, like Gecko) Version/5.0 Mobile Safari/533.1',         'Content-Type':'application/x-www-form-urlencoded',         'Content-Length':'57',         'Host':'appmatch.yuanrenxue.com',         'Connection':'Keep-Alive',         'Accept-Encoding':'gzip',         'Cache-Control':'no-cache',    }    count = 0  #记数    for i in range(1,101):          s = f'page={i}' + str(time_)        bArr = [x for x in bytearray(s,'utf_8')]        res = script.exports.callsecretfunctionedy(bArr) #调用frida_js函数获取加密参数          payload = {            'page': str(i),            'sign': res,            't': time_,        }          r = requests.post("https://appmatch.yuanrenxue.com/app1", data=payload, headers = header2, verify = False )          data = r.json()['data']        for v in data:            count += int(v['value'])      print("flag count:",count)

var result;function callDYFun(bArr) { //定义导出函数    Java.perform(function () {        console.log("bArr:",bArr);        var ss = Java.use('com.yuanrenxue.match2022.security.Sign');        var str = Java.use("java.lang.String");        var res = str.$new(ss.$new().sign(bArr));        result = str.valueOf(res)        console.log("result:",result);      });    return result;//返回值给python}rpc.exports = {    callsecretfunctionedy: callDYFun,};