#!/usr/bin/env python3
"""模拟器 spawn+立即resume 版 dfpReport 捕获。

关键: spawn 后【立即】resume(App 避免 EGL 崩溃), 然后立即 attach+load 主 hook。
dfpReport 冷启动约 1s 后自动发, attach 足够快能赶上。
"""
from __future__ import annotations
import frida, time, json, re
from pathlib import Path

REMOTE = "127.0.0.1:31878"
PACKAGE = "com.duowan.kiwi"
OUT = Path("/Users/yml/codes/douyu_login_py/evidence/emu_spawn_dfp.json")

JS = r"""
'use strict';
send({type:'armed'});
function hexb(p,n){try{return Array.from(new Uint8Array(p.readByteArray(n))).map(b=>('0'+b.toString(16)).slice(-2)).join('');}catch(e){return '';}}
function head(p,n){try{return p.readCString(n);}catch(e){return '';}}
var n=0;
try{
  var r=new ApiResolver('module');
  r.enumerateMatchesSync('exports:*!SSL_write').forEach(function(m){
    Interceptor.attach(m.address,{onEnter:function(a){
      var len=a[2].toInt32();
      if(len<50||len>50000)return;
      var h=head(a[1],Math.min(len,1500));
      if(h.indexOf('dfpReport')>=0||h.indexOf('dckey')>=0){
        n++; send({cls:h.indexOf('dfpReport')>=0?'dfpReport':'dckey',n:n,len:len,t:Date.now(),hex:hexb(a[1],len)});
      }
    }});
  });
  send({type:'hooked'});
}catch(e){send({type:'err',e:String(e)});}
"""


def main():
    d = frida.get_device_manager().add_remote_device(REMOTE)
    pid = d.spawn([PACKAGE])
    print(f"[*] spawn pid={pid}", flush=True)
    # 立即 resume (防 EGL 崩)
    d.resume(pid)
    time.sleep(0.4)
    session = d.attach(pid)
    events = []

    def on_message(m, data):
        if m.get('type') == 'error':
            print("[JS-ERR]", str(m)[:200], flush=True); return
        p = m.get('payload') or {}
        t = p.get('type')
        if t == 'armed':
            print("[*] armed", flush=True)
        elif t == 'hooked':
            print("[*] SSL_write hooked", flush=True)
        elif t == 'err':
            print("[*] err", p.get('e'), flush=True)
        elif 'cls' in p:
            print(f"[{p.get('t')}] {p.get('cls')} len={p.get('len')}", flush=True)
            events.append(p); OUT.write_text(json.dumps(events))

    sc = session.create_script(JS)
    sc.on('message', on_message)
    sc.load()
    print(f"[*] loaded. running (OUT={OUT})", flush=True)
    t0 = time.time()
    try:
        while time.time() - t0 < 60:
            time.sleep(4)
    except KeyboardInterrupt:
        pass
    print(f"[*] done, {len(events)} dfpRevent(s)", flush=True)


if __name__ == "__main__":
    main()