#!/usr/bin/env python3
"""定位 k1 存储: hook getInstance(0x281270) 拿单例, 读 +0x10; 内存搜 k1 出现位置看周边结构。"""
from __future__ import annotations

import json
import subprocess
import time
from pathlib import Path

import frida

RE = Path("/Users/yml/codes/Reverse-Engineering-Agent-Universal-v3.0")
K1 = "865a4924a40897ac1fcfe6b4c2cbb0e3"

JS = r"""
'use strict';
Process.setExceptionHandler(function(d){ send({type:'segv', info:{type:d.type, addr:String(d.address)}}); return true; });
var base = Process.getModuleByName('libudbauthunify.so').base;
send({type:'armed', base:String(base)});

function rdStr(p){
  try{
    var b0=p.readU8();
    if((b0&1)===0){ var l=b0>>1; if(l>8192) return {t:'s?',len:l,v:''};
      return {t:'s',len:l,v:l?Array.from(new Uint8Array(p.add(1).readByteArray(l))).map(x=>('0'+x.toString(16)).slice(-2)).join(''):''}; }
    var len=parseInt(p.add(8).readU64().toString());
    if(len>65536) return {t:'l?',len:len,v:''};
    var dp=p.add(16).readPointer();
    return {t:'l',len:len,v:Array.from(new Uint8Array(dp.readByteArray(len))).map(x=>('0'+x.toString(16)).slice(-2)).join('')};
  }catch(e){ return {t:'err',len:-1,v:String(e)}; }
}

// 1) getInstance -> 单例地址 + 读 +0x10
try {
  Interceptor.attach(base.add(0x281270), {
    onLeave: function(r){
      var s = rdStr(r.add(0x10));
      send({type:'cfg', addr:String(r), k1:s, k1ascii:(function(h){var o='';for(var i=0;i<h.length;i+=2){var c=parseInt(h.substr(i,2),16);o+=(c>=32&&c<127)?String.fromCharCode(c):'.';}return o;})(s.v)});
      // dump 前 0x60 成员指针(可能含其它 string)
      try {
        var hex='';
        for (var off=0; off<0x60; off+=8) hex += hx(r.add(off),8);
        send({type:'cfg_dump', hex:hex});
      } catch(e){}
    }
  });
} catch(e){ send({type:'hookerr', where:'getInstance', msg:''+e}); }

// 2) hook loadLoginData(未知地址) 跳过; 直接定时 dump
setTimeout(function(){
  try {
    // 找已缓存的单例: getInstance 是懒加载, 定时再调一次读
    var f = new NativeFunction(base.add(0x281270), 'pointer', []);
    var inst = f();
    var s = rdStr(inst.add(0x10));
    send({type:'tick_k1', addr:String(inst), k1:s});
  } catch(e){ send({type:'tick_err', msg:''+e}); }
}, 30000);

function hx(p,n){ try{ return Array.from(new Uint8Array(p.readByteArray(n))).map(x=>('0'+x.toString(16)).slice(-2)).join(''); }catch(e){ return 'ERR'; } }
"""


def main():
    d = frida.get_device_manager().add_remote_device('127.0.0.1:31877')
    pid = d.spawn(['com.duowan.kiwi'])
    print(f'spawned {pid}')
    s = d.attach(pid)
    s.create_script((RE / "evidence/scripts/bypass_msaoaid_maps_art_callsite.js").read_text()).load()
    s.create_script((RE / "evidence/scripts/mask_frida_maps_only.js").read_text()).load()
    d.resume(pid)
    print('resumed')
    time.sleep(11)
    s.create_script((RE / "evidence/scripts/patch_guard_block_termination.js").read_text()).load()
    print('patch_guard on')

    sc = s.create_script(JS)
    events = []
    got_armed = []

    def on_msg(m, _):
        if m.get('type') == 'error':
            print('JS ERR:', str(m)[:240]); return
        if m.get('type') != 'send':
            return
        p = m.get('payload') or {}
        t = p.get('type')
        events.append(p)
        if t == 'armed':
            got_armed.append(1); print('[armed]')
        elif t == 'cfg':
            print(f"[cfg] addr={p['addr']} k1len={p['k1']['len']} k1ascii={p['k1ascii']}")
        elif t == 'cfg_dump':
            print(f"[cfg_dump] {p['hex']}")
        elif t == 'tick_k1':
            print(f"[tick_k1] addr={p['addr']} k1={p['k1']['v'][:40]}({p['k1']['len']})")
        elif t == 'tick_err':
            print('[tick_err]', p['msg'][:120])
        elif t == 'hookerr':
            print('[hookerr]', p)

    sc.on('message', on_msg)
    sc.load()
    assert got_armed

    deadline = time.time() + 90
    while time.time() < deadline:
        time.sleep(2)
        if any(e.get('type') == 'tick_k1' for e in events):
            time.sleep(3)
            break
    Path('/tmp/opencode/k1_cfg.json').write_text(json.dumps(events))
    print('saved /tmp/opencode/k1_cfg.json')


if __name__ == '__main__':
    for attempt in range(3):
        print(f'===== 尝试 #{attempt+1} =====')
        try:
            main()
            break
        except frida.InvalidOperationError as e:
            print(f'session detached: {e}')
            subprocess.run(['adb', 'shell', 'am', 'force-stop', 'com.duowan.kiwi'])
            time.sleep(3)
        except Exception as e:
            print(f'err: {e}')
            subprocess.run(['adb', 'shell', 'am', 'force-stop', 'com.duowan.kiwi'])
            time.sleep(3)