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python - mitmdump 错误：Windows 中的 select() 问题中的文件描述符过多

问题描述

我尝试使用 mitmdump 和 python 脚本捕获 Android 应用程序上的请求，但 mitmdump 似乎很容易被阻止并引发以下错误：

Traceback (most recent call last):
  File "D:\Python\Python39\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "D:\Python\Python39\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "D:\Python\Python39\Scripts\mitmdump.exe\__main__.py", line 7, in <module>
  File "D:\Python\Python39\lib\site-packages\mitmproxy\tools\main.py", line 147, in mitmdump
    m = run(dump.DumpMaster, cmdline.mitmdump, args, extra)
  File "D:\Python\Python39\lib\site-packages\mitmproxy\tools\main.py", line 114, in run
    master.run()
  File "D:\Python\Python39\lib\site-packages\mitmproxy\master.py", line 81, in run
    self.run_loop(loop.run_forever)
  File "D:\Python\Python39\lib\site-packages\mitmproxy\master.py", line 64, in run_loop
    self.shutdown()
  File "D:\Python\Python39\lib\site-packages\mitmproxy\master.py", line 100, in shutdown
    self.event_loop.run_until_complete(asyncio.wrap_future(ret))
  File "D:\Python\Python39\lib\asyncio\base_events.py", line 629, in run_until_complete
    self.run_forever()
  File "D:\Python\Python39\lib\asyncio\base_events.py", line 596, in run_forever
    self._run_once()
  File "D:\Python\Python39\lib\asyncio\base_events.py", line 1854, in _run_once
    event_list = self._selector.select(timeout)
  File "D:\Python\Python39\lib\selectors.py", line 324, in select
    r, w, _ = self._select(self._readers, self._writers, [], timeout)
  File "D:\Python\Python39\lib\selectors.py", line 315, in _select
    r, w, x = select.select(r, w, w, timeout)
ValueError: too many file descriptors in select()

mitmdump 服务器在 Windows 中运行。它似乎限制了mitmdump的并发，但我不知道如何修改源代码。有人可以分享一些想法吗？

标签： pythonandroidwindowsmitmproxy

解决方案

最新的开发版本（最终将是 8.0）在 Windows 上使用 ProactorEventLoop，它解决了这个问题。

现在，您可以减少并发连接，也可以升级到开发快照。

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