FTPFileSystem open file cannot read from filezilla server

The ABOR command is sent when the ftp file download is finished, the server no longer responds and raises the TimeoutError

code:

def test1():
    fs: FTPFileSystem = fsspec.filesystem('ftp', asynchronous=True, host='127.0.0.1', port=21, username='admin',
                                          password='admin', timeout=10)

    with fs.open(fs.ls('/realtime_update')[0]['name'], compression='gzip') as f:
        f.read()

fsspec.implementations.ftp.FTPFile._fetch_range

 # stop transfer, we got enough bytes for this block
                self.fs.ftp.abort()

debug log

*get* '150 Starting data transfer.\n'
*resp* '150 Starting data transfer.'
*put urgent* b'ABOR\r\n'
*get* '226 Operation successful\n'
Traceback (most recent call last):
  File "F:\project\python\external_ftp_pipeline\.venv\Lib\site-packages\fsspec\implementations\ftp.py", line 323, in _fetch_range
    self.fs.ftp.retrbinary(
  File "D:\Applications\scoop\apps\python\current\Lib\ftplib.py", line 441, in retrbinary
    callback(data)
  File "F:\project\python\external_ftp_pipeline\.venv\Lib\site-packages\fsspec\implementations\ftp.py", line 315, in callback
    raise TransferDone
fsspec.implementations.ftp.TransferDone

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "F:\project\python\external_ftp_pipeline\src\external_ftp\gongshang_ftp.py", line 154, in <module>
    asyncio.run(main())
  File "D:\Applications\scoop\apps\python\current\Lib\asyncio\runners.py", line 190, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "D:\Applications\scoop\apps\python\current\Lib\asyncio\runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Applications\scoop\apps\python\current\Lib\asyncio\base_events.py", line 653, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "F:\project\python\external_ftp_pipeline\src\external_ftp\gongshang_ftp.py", line 136, in main
    for tag, data in load_ftp_infos():
  File "F:\project\python\external_ftp_pipeline\src\external_ftp\gongshang_ftp.py", line 127, in load_ftp_infos
    for data in decode_lines(f):
  File "F:\project\python\external_ftp_pipeline\src\external_ftp\gongshang_ftp.py", line 117, in decode_lines
    for line in source:
  File "D:\Applications\scoop\apps\python\current\Lib\gzip.py", line 399, in readline
    return self._buffer.readline(size)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Applications\scoop\apps\python\current\Lib\_compression.py", line 68, in readinto
    data = self.read(len(byte_view))
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Applications\scoop\apps\python\current\Lib\gzip.py", line 499, in read
    if not self._read_gzip_header():
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Applications\scoop\apps\python\current\Lib\gzip.py", line 468, in _read_gzip_header
    last_mtime = _read_gzip_header(self._fp)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Applications\scoop\apps\python\current\Lib\gzip.py", line 423, in _read_gzip_header
    magic = fp.read(2)
            ^^^^^^^^^^
  File "D:\Applications\scoop\apps\python\current\Lib\gzip.py", line 97, in read
    self.file.read(size-self._length+read)
  File "F:\project\python\external_ftp_pipeline\.venv\Lib\site-packages\fsspec\spec.py", line 1856, in read
    out = self.cache._fetch(self.loc, self.loc + length)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "F:\project\python\external_ftp_pipeline\.venv\Lib\site-packages\fsspec\caching.py", line 189, in _fetch
    self.cache = self.fetcher(start, end)  # new block replaces old
                 ^^^^^^^^^^^^^^^^^^^^^^^^
  File "F:\project\python\external_ftp_pipeline\.venv\Lib\site-packages\fsspec\implementations\ftp.py", line 333, in _fetch_range
    self.fs.ftp.getmultiline()
  File "D:\Applications\scoop\apps\python\current\Lib\ftplib.py", line 230, in getmultiline
    line = self.getline()
           ^^^^^^^^^^^^^^
  File "D:\Applications\scoop\apps\python\current\Lib\ftplib.py", line 212, in getline
    line = self.file.readline(self.maxline + 1)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Applications\scoop\apps\python\current\Lib\socket.py", line 706, in readinto
    return self._sock.recv_into(b)
           ^^^^^^^^^^^^^^^^^^^^^^^
TimeoutError: timed out

Start in fsspec/implementations/ftp.py, especially FTPFile._fetch_range and the FTPFileSystem setup shown in the issue. Reproduce the read against a FileZilla server and inspect the ABOR handling alongside the debug log. Done means the gzip file can be opened and read without the post-transfer timeout.