File support-python-312.patch of Package python-pyftpdlib
From a0784dc320042f7f3d8aa0cf2bde5a06a1d771a3 Mon Sep 17 00:00:00 2001
From: Giampaolo Rodola <g.rodola@gmail.com>
Date: Thu, 3 Aug 2023 12:04:08 +0800
Subject: [PATCH 1/4] copy asyncore.py and asynchat.py from python 3.11
---
MANIFEST.in | 2 +
Makefile | 2 +-
pyftpdlib/_asynchat.py | 217 +++++++++++++++
pyftpdlib/_asyncore.py | 587 +++++++++++++++++++++++++++++++++++++++++
pyftpdlib/handlers.py | 7 +-
pyftpdlib/ioloop.py | 10 +-
6 files changed, 821 insertions(+), 4 deletions(-)
create mode 100644 pyftpdlib/_asynchat.py
create mode 100644 pyftpdlib/_asyncore.py
Index: pyftpdlib-1.5.7/MANIFEST.in
===================================================================
--- pyftpdlib-1.5.7.orig/MANIFEST.in
+++ pyftpdlib-1.5.7/MANIFEST.in
@@ -35,6 +35,8 @@ include docs/tutorial.rst
include make.bat
include pyftpdlib/__init__.py
include pyftpdlib/__main__.py
+include pyftpdlib/_asynchat.py
+include pyftpdlib/_asyncore.py
include pyftpdlib/_compat.py
include pyftpdlib/authorizers.py
include pyftpdlib/filesystems.py
Index: pyftpdlib-1.5.7/pyftpdlib/_asynchat.py
===================================================================
--- /dev/null
+++ pyftpdlib-1.5.7/pyftpdlib/_asynchat.py
@@ -0,0 +1,217 @@
+# Id: asynchat.py,v 2.26 2000/09/07 22:29:26 rushing Exp
+# Author: Sam Rushing <rushing@nightmare.com>
+
+# ======================================================================
+# Copyright 1996 by Sam Rushing
+#
+# All Rights Reserved
+#
+# Permission to use, copy, modify, and distribute this software and
+# its documentation for any purpose and without fee is hereby
+# granted, provided that the above copyright notice appear in all
+# copies and that both that copyright notice and this permission
+# notice appear in supporting documentation, and that the name of Sam
+# Rushing not be used in advertising or publicity pertaining to
+# distribution of the software without specific, written prior
+# permission.
+#
+# SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+# NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+# ======================================================================
+
+from collections import deque
+
+from . import _asyncore as asyncore
+
+
+class async_chat(asyncore.dispatcher):
+ ac_in_buffer_size = 65536
+ ac_out_buffer_size = 65536
+ use_encoding = 0
+ encoding = 'latin-1'
+
+ def __init__(self, sock=None, map=None):
+ self.ac_in_buffer = b''
+ self.incoming = []
+ self.producer_fifo = deque()
+ asyncore.dispatcher.__init__(self, sock, map)
+
+ def collect_incoming_data(self, data):
+ raise NotImplementedError("must be implemented in subclass")
+
+ def _collect_incoming_data(self, data):
+ self.incoming.append(data)
+
+ def _get_data(self):
+ d = b''.join(self.incoming)
+ del self.incoming[:]
+ return d
+
+ def found_terminator(self):
+ raise NotImplementedError("must be implemented in subclass")
+
+ def set_terminator(self, term):
+ if isinstance(term, str) and self.use_encoding:
+ term = bytes(term, self.encoding)
+ elif isinstance(term, int) and term < 0:
+ raise ValueError('the number of received bytes must be positive')
+ self.terminator = term
+
+ def get_terminator(self):
+ return self.terminator
+
+ def handle_read(self):
+
+ try:
+ data = self.recv(self.ac_in_buffer_size)
+ except BlockingIOError:
+ return
+ except OSError:
+ self.handle_error()
+ return
+
+ if isinstance(data, str) and self.use_encoding:
+ data = bytes(str, self.encoding)
+ self.ac_in_buffer = self.ac_in_buffer + data
+
+ while self.ac_in_buffer:
+ lb = len(self.ac_in_buffer)
+ terminator = self.get_terminator()
+ if not terminator:
+ # no terminator, collect it all
+ self.collect_incoming_data(self.ac_in_buffer)
+ self.ac_in_buffer = b''
+ elif isinstance(terminator, int):
+ # numeric terminator
+ n = terminator
+ if lb < n:
+ self.collect_incoming_data(self.ac_in_buffer)
+ self.ac_in_buffer = b''
+ self.terminator = self.terminator - lb
+ else:
+ self.collect_incoming_data(self.ac_in_buffer[:n])
+ self.ac_in_buffer = self.ac_in_buffer[n:]
+ self.terminator = 0
+ self.found_terminator()
+ else:
+ terminator_len = len(terminator)
+ index = self.ac_in_buffer.find(terminator)
+ if index != -1:
+ if index > 0:
+ self.collect_incoming_data(self.ac_in_buffer[:index])
+ self.ac_in_buffer = self.ac_in_buffer[index +
+ terminator_len:]
+ self.found_terminator()
+ else:
+ index = find_prefix_at_end(self.ac_in_buffer, terminator)
+ if index:
+ if index != lb:
+ self.collect_incoming_data(
+ self.ac_in_buffer[:-index])
+ self.ac_in_buffer = self.ac_in_buffer[-index:]
+ break
+ else:
+ self.collect_incoming_data(self.ac_in_buffer)
+ self.ac_in_buffer = b''
+
+ def handle_write(self):
+ self.initiate_send()
+
+ def handle_close(self):
+ self.close()
+
+ def push(self, data):
+ if not isinstance(data, (bytes, bytearray, memoryview)):
+ raise TypeError('data argument must be byte-ish (%r)',
+ type(data))
+ sabs = self.ac_out_buffer_size
+ if len(data) > sabs:
+ for i in range(0, len(data), sabs):
+ self.producer_fifo.append(data[i:i + sabs])
+ else:
+ self.producer_fifo.append(data)
+ self.initiate_send()
+
+ def push_with_producer(self, producer):
+ self.producer_fifo.append(producer)
+ self.initiate_send()
+
+ def readable(self):
+ return 1
+
+ def writable(self):
+ return self.producer_fifo or (not self.connected)
+
+ def close_when_done(self):
+ self.producer_fifo.append(None)
+
+ def initiate_send(self):
+ while self.producer_fifo and self.connected:
+ first = self.producer_fifo[0]
+ if not first:
+ del self.producer_fifo[0]
+ if first is None:
+ self.handle_close()
+ return
+
+ obs = self.ac_out_buffer_size
+ try:
+ data = first[:obs]
+ except TypeError:
+ data = first.more()
+ if data:
+ self.producer_fifo.appendleft(data)
+ else:
+ del self.producer_fifo[0]
+ continue
+
+ if isinstance(data, str) and self.use_encoding:
+ data = bytes(data, self.encoding)
+
+ try:
+ num_sent = self.send(data)
+ except OSError:
+ self.handle_error()
+ return
+
+ if num_sent:
+ if num_sent < len(data) or obs < len(first):
+ self.producer_fifo[0] = first[num_sent:]
+ else:
+ del self.producer_fifo[0]
+ return
+
+ def discard_buffers(self):
+ # Emergencies only!
+ self.ac_in_buffer = b''
+ del self.incoming[:]
+ self.producer_fifo.clear()
+
+
+class simple_producer:
+
+ def __init__(self, data, buffer_size=512):
+ self.data = data
+ self.buffer_size = buffer_size
+
+ def more(self):
+ if len(self.data) > self.buffer_size:
+ result = self.data[:self.buffer_size]
+ self.data = self.data[self.buffer_size:]
+ return result
+ else:
+ result = self.data
+ self.data = b''
+ return result
+
+
+def find_prefix_at_end(haystack, needle):
+ ll = len(needle) - 1
+ while ll and not haystack.endswith(needle[:ll]):
+ ll -= 1
+ return ll
Index: pyftpdlib-1.5.7/pyftpdlib/_asyncore.py
===================================================================
--- /dev/null
+++ pyftpdlib-1.5.7/pyftpdlib/_asyncore.py
@@ -0,0 +1,587 @@
+# Id: asyncore.py,v 2.51 2000/09/07 22:29:26 rushing Exp
+# Author: Sam Rushing <rushing@nightmare.com>
+
+# ======================================================================
+# Copyright 1996 by Sam Rushing
+#
+# All Rights Reserved
+#
+# Permission to use, copy, modify, and distribute this software and
+# its documentation for any purpose and without fee is hereby
+# granted, provided that the above copyright notice appear in all
+# copies and that both that copyright notice and this permission
+# notice appear in supporting documentation, and that the name of Sam
+# Rushing not be used in advertising or publicity pertaining to
+# distribution of the software without specific, written prior
+# permission.
+#
+# SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+# NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+# ======================================================================
+
+
+import os
+import select
+import socket
+import sys
+import time
+import warnings
+from errno import EAGAIN
+from errno import EALREADY
+from errno import EBADF
+from errno import ECONNABORTED
+from errno import ECONNRESET
+from errno import EINPROGRESS
+from errno import EINVAL
+from errno import EISCONN
+from errno import ENOTCONN
+from errno import EPIPE
+from errno import ESHUTDOWN
+from errno import EWOULDBLOCK
+from errno import errorcode
+
+
+_DISCONNECTED = frozenset(
+ {ECONNRESET, ENOTCONN, ESHUTDOWN, ECONNABORTED, EPIPE, EBADF})
+
+try:
+ socket_map
+except NameError:
+ socket_map = {}
+
+
+def _strerror(err):
+ try:
+ return os.strerror(err)
+ except (ValueError, OverflowError, NameError):
+ if err in errorcode:
+ return errorcode[err]
+ return "Unknown error %s" % err
+
+
+class ExitNow(Exception):
+ pass
+
+
+_reraised_exceptions = (ExitNow, KeyboardInterrupt, SystemExit)
+
+
+def read(obj):
+ try:
+ obj.handle_read_event()
+ except _reraised_exceptions:
+ raise
+ except Exception:
+ obj.handle_error()
+
+
+def write(obj):
+ try:
+ obj.handle_write_event()
+ except _reraised_exceptions:
+ raise
+ except Exception:
+ obj.handle_error()
+
+
+def _exception(obj):
+ try:
+ obj.handle_expt_event()
+ except _reraised_exceptions:
+ raise
+ except Exception:
+ obj.handle_error()
+
+
+def readwrite(obj, flags):
+ try:
+ if flags & select.POLLIN:
+ obj.handle_read_event()
+ if flags & select.POLLOUT:
+ obj.handle_write_event()
+ if flags & select.POLLPRI:
+ obj.handle_expt_event()
+ if flags & (select.POLLHUP | select.POLLERR | select.POLLNVAL):
+ obj.handle_close()
+ except OSError as e:
+ if e.errno not in _DISCONNECTED:
+ obj.handle_error()
+ else:
+ obj.handle_close()
+ except _reraised_exceptions:
+ raise
+ except Exception:
+ obj.handle_error()
+
+
+def poll(timeout=0.0, map=None):
+ if map is None:
+ map = socket_map
+ if map:
+ r = []
+ w = []
+ e = []
+ for fd, obj in list(map.items()):
+ is_r = obj.readable()
+ is_w = obj.writable()
+ if is_r:
+ r.append(fd)
+ if is_w and not obj.accepting:
+ w.append(fd)
+ if is_r or is_w:
+ e.append(fd)
+ if [] == r == w == e:
+ time.sleep(timeout)
+ return
+
+ r, w, e = select.select(r, w, e, timeout)
+
+ for fd in r:
+ obj = map.get(fd)
+ if obj is None:
+ continue
+ read(obj)
+
+ for fd in w:
+ obj = map.get(fd)
+ if obj is None:
+ continue
+ write(obj)
+
+ for fd in e:
+ obj = map.get(fd)
+ if obj is None:
+ continue
+ _exception(obj)
+
+
+def poll2(timeout=0.0, map=None):
+ if map is None:
+ map = socket_map
+ if timeout is not None:
+ timeout = int(timeout * 1000)
+ pollster = select.poll()
+ if map:
+ for fd, obj in list(map.items()):
+ flags = 0
+ if obj.readable():
+ flags |= select.POLLIN | select.POLLPRI
+ if obj.writable() and not obj.accepting:
+ flags |= select.POLLOUT
+ if flags:
+ pollster.register(fd, flags)
+
+ r = pollster.poll(timeout)
+ for fd, flags in r:
+ obj = map.get(fd)
+ if obj is None:
+ continue
+ readwrite(obj, flags)
+
+
+poll3 = poll2 # Alias for backward compatibility
+
+
+def loop(timeout=30.0, use_poll=False, map=None, count=None):
+ if map is None:
+ map = socket_map
+
+ if use_poll and hasattr(select, 'poll'):
+ poll_fun = poll2
+ else:
+ poll_fun = poll
+
+ if count is None:
+ while map:
+ poll_fun(timeout, map)
+
+ else:
+ while map and count > 0:
+ poll_fun(timeout, map)
+ count = count - 1
+
+
+class dispatcher:
+
+ debug = False
+ connected = False
+ accepting = False
+ connecting = False
+ closing = False
+ addr = None
+ ignore_log_types = frozenset({'warning'})
+
+ def __init__(self, sock=None, map=None):
+ if map is None:
+ self._map = socket_map
+ else:
+ self._map = map
+
+ self._fileno = None
+
+ if sock:
+ sock.setblocking(False)
+ self.set_socket(sock, map)
+ self.connected = True
+ try:
+ self.addr = sock.getpeername()
+ except OSError as err:
+ if err.errno in (ENOTCONN, EINVAL):
+ self.connected = False
+ else:
+ self.del_channel(map)
+ raise
+ else:
+ self.socket = None
+
+ def __repr__(self):
+ status = [self.__class__.__module__ +
+ "." + self.__class__.__qualname__]
+ if self.accepting and self.addr:
+ status.append('listening')
+ elif self.connected:
+ status.append('connected')
+ if self.addr is not None:
+ try:
+ status.append('%s:%d' % self.addr)
+ except TypeError:
+ status.append(repr(self.addr))
+ return '<%s at %#x>' % (' '.join(status), id(self))
+
+ def add_channel(self, map=None):
+ # self.log_info('adding channel %s' % self)
+ if map is None:
+ map = self._map
+ map[self._fileno] = self
+
+ def del_channel(self, map=None):
+ fd = self._fileno
+ if map is None:
+ map = self._map
+ if fd in map:
+ del map[fd]
+ self._fileno = None
+
+ def create_socket(self, family=socket.AF_INET, type=socket.SOCK_STREAM):
+ self.family_and_type = family, type
+ sock = socket.socket(family, type)
+ sock.setblocking(False)
+ self.set_socket(sock)
+
+ def set_socket(self, sock, map=None):
+ self.socket = sock
+ self._fileno = sock.fileno()
+ self.add_channel(map)
+
+ def set_reuse_addr(self):
+ try:
+ self.socket.setsockopt(
+ socket.SOL_SOCKET, socket.SO_REUSEADDR,
+ self.socket.getsockopt(socket.SOL_SOCKET,
+ socket.SO_REUSEADDR) | 1
+ )
+ except OSError:
+ pass
+
+ def readable(self):
+ return True
+
+ def writable(self):
+ return True
+
+ def listen(self, num):
+ self.accepting = True
+ if os.name == 'nt' and num > 5:
+ num = 5
+ return self.socket.listen(num)
+
+ def bind(self, addr):
+ self.addr = addr
+ return self.socket.bind(addr)
+
+ def connect(self, address):
+ self.connected = False
+ self.connecting = True
+ err = self.socket.connect_ex(address)
+ if err in (EINPROGRESS, EALREADY, EWOULDBLOCK) \
+ or err == EINVAL and os.name == 'nt':
+ self.addr = address
+ return
+ if err in (0, EISCONN):
+ self.addr = address
+ self.handle_connect_event()
+ else:
+ raise OSError(err, errorcode[err])
+
+ def accept(self):
+ try:
+ conn, addr = self.socket.accept()
+ except TypeError:
+ return None
+ except OSError as why:
+ if why.errno in (EWOULDBLOCK, ECONNABORTED, EAGAIN):
+ return None
+ else:
+ raise
+ else:
+ return conn, addr
+
+ def send(self, data):
+ try:
+ result = self.socket.send(data)
+ return result
+ except OSError as why:
+ if why.errno == EWOULDBLOCK:
+ return 0
+ elif why.errno in _DISCONNECTED:
+ self.handle_close()
+ return 0
+ else:
+ raise
+
+ def recv(self, buffer_size):
+ try:
+ data = self.socket.recv(buffer_size)
+ if not data:
+ self.handle_close()
+ return b''
+ else:
+ return data
+ except OSError as why:
+ if why.errno in _DISCONNECTED:
+ self.handle_close()
+ return b''
+ else:
+ raise
+
+ def close(self):
+ self.connected = False
+ self.accepting = False
+ self.connecting = False
+ self.del_channel()
+ if self.socket is not None:
+ try:
+ self.socket.close()
+ except OSError as why:
+ if why.errno not in (ENOTCONN, EBADF):
+ raise
+
+ def log(self, message):
+ sys.stderr.write('log: %s\n' % str(message))
+
+ def log_info(self, message, type='info'):
+ if type not in self.ignore_log_types:
+ print('%s: %s' % (type, message)) # noqa
+
+ def handle_read_event(self):
+ if self.accepting:
+ # accepting sockets are never connected, they "spawn" new
+ # sockets that are connected
+ self.handle_accept()
+ elif not self.connected:
+ if self.connecting:
+ self.handle_connect_event()
+ self.handle_read()
+ else:
+ self.handle_read()
+
+ def handle_connect_event(self):
+ err = self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR)
+ if err != 0:
+ raise OSError(err, _strerror(err))
+ self.handle_connect()
+ self.connected = True
+ self.connecting = False
+
+ def handle_write_event(self):
+ if self.accepting:
+ return
+
+ if not self.connected:
+ if self.connecting:
+ self.handle_connect_event()
+ self.handle_write()
+
+ def handle_expt_event(self):
+ err = self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR)
+ if err != 0:
+ self.handle_close()
+ else:
+ self.handle_expt()
+
+ def handle_error(self):
+ nil, t, v, tbinfo = compact_traceback()
+ try:
+ self_repr = repr(self)
+ except Exception:
+ self_repr = '<__repr__(self) failed for object at %0x>' % id(self)
+
+ self.log_info(
+ 'uncaptured python exception, closing channel %s (%s:%s %s)' % (
+ self_repr,
+ t,
+ v,
+ tbinfo
+ ),
+ 'error'
+ )
+ self.handle_close()
+
+ def handle_expt(self):
+ self.log_info('unhandled incoming priority event', 'warning')
+
+ def handle_read(self):
+ self.log_info('unhandled read event', 'warning')
+
+ def handle_write(self):
+ self.log_info('unhandled write event', 'warning')
+
+ def handle_connect(self):
+ self.log_info('unhandled connect event', 'warning')
+
+ def handle_accept(self):
+ pair = self.accept()
+ if pair is not None:
+ self.handle_accepted(*pair)
+
+ def handle_accepted(self, sock, addr):
+ sock.close()
+ self.log_info('unhandled accepted event', 'warning')
+
+ def handle_close(self):
+ self.log_info('unhandled close event', 'warning')
+ self.close()
+
+
+class dispatcher_with_send(dispatcher):
+
+ def __init__(self, sock=None, map=None):
+ dispatcher.__init__(self, sock, map)
+ self.out_buffer = b''
+
+ def initiate_send(self):
+ num_sent = 0
+ num_sent = dispatcher.send(self, self.out_buffer[:65536])
+ self.out_buffer = self.out_buffer[num_sent:]
+
+ def handle_write(self):
+ self.initiate_send()
+
+ def writable(self):
+ return (not self.connected) or len(self.out_buffer)
+
+ def send(self, data):
+ if self.debug:
+ self.log_info('sending %s' % repr(data))
+ self.out_buffer = self.out_buffer + data
+ self.initiate_send()
+
+# ---------------------------------------------------------------------------
+# used for debugging.
+# ---------------------------------------------------------------------------
+
+
+def compact_traceback():
+ t, v, tb = sys.exc_info()
+ tbinfo = []
+ if not tb: # Must have a traceback
+ raise AssertionError("traceback does not exist")
+ while tb:
+ tbinfo.append((
+ tb.tb_frame.f_code.co_filename,
+ tb.tb_frame.f_code.co_name,
+ str(tb.tb_lineno)
+ ))
+ tb = tb.tb_next
+
+ # just to be safe
+ del tb
+
+ file, function, line = tbinfo[-1]
+ info = ' '.join(['[%s|%s|%s]' % x for x in tbinfo])
+ return (file, function, line), t, v, info
+
+
+def close_all(map=None, ignore_all=False):
+ if map is None:
+ map = socket_map
+ for x in list(map.values()):
+ try:
+ x.close()
+ except OSError as x:
+ if x.errno == EBADF:
+ pass
+ elif not ignore_all:
+ raise
+ except _reraised_exceptions:
+ raise
+ except Exception:
+ if not ignore_all:
+ raise
+ map.clear()
+
+
+if os.name == 'posix':
+ class file_wrapper:
+ # Here we override just enough to make a file
+ # look like a socket for the purposes of asyncore.
+ # The passed fd is automatically os.dup()'d
+
+ def __init__(self, fd):
+ self.fd = os.dup(fd)
+
+ def __del__(self):
+ if self.fd >= 0:
+ warnings.warn("unclosed file %r" % self, ResourceWarning,
+ source=self, stacklevel=2)
+ self.close()
+
+ def recv(self, *args):
+ return os.read(self.fd, *args)
+
+ def send(self, *args):
+ return os.write(self.fd, *args)
+
+ def getsockopt(self, level, optname, buflen=None):
+ if (level == socket.SOL_SOCKET and
+ optname == socket.SO_ERROR and
+ not buflen):
+ return 0
+ raise NotImplementedError("Only asyncore specific behaviour "
+ "implemented.")
+
+ read = recv
+ write = send
+
+ def close(self):
+ if self.fd < 0:
+ return
+ fd = self.fd
+ self.fd = -1
+ os.close(fd)
+
+ def fileno(self):
+ return self.fd
+
+ class file_dispatcher(dispatcher):
+
+ def __init__(self, fd, map=None):
+ dispatcher.__init__(self, None, map)
+ self.connected = True
+ try:
+ fd = fd.fileno()
+ except AttributeError:
+ pass
+ self.set_file(fd)
+ # set it to non-blocking mode
+ os.set_blocking(fd, False)
+
+ def set_file(self, fd):
+ self.socket = file_wrapper(fd)
+ self._fileno = self.socket.fileno()
+ self.add_channel()
Index: pyftpdlib-1.5.7/pyftpdlib/handlers.py
===================================================================
--- pyftpdlib-1.5.7.orig/pyftpdlib/handlers.py
+++ pyftpdlib-1.5.7/pyftpdlib/handlers.py
@@ -2,7 +2,6 @@
# Use of this source code is governed by MIT license that can be
# found in the LICENSE file.
-import asynchat
import contextlib
import errno
import glob
@@ -57,6 +56,12 @@ from .log import debug
from .log import logger
+if sys.version_info[:2] >= (3, 12):
+ from . import _asynchat as asynchat
+else:
+ import asynchat
+
+
CR_BYTE = ord('\r')
Index: pyftpdlib-1.5.7/pyftpdlib/ioloop.py
===================================================================
--- pyftpdlib-1.5.7.orig/pyftpdlib/ioloop.py
+++ pyftpdlib-1.5.7/pyftpdlib/ioloop.py
@@ -56,8 +56,6 @@ server = Server('localhost', 8021)
IOLoop.instance().loop()
"""
-import asynchat
-import asyncore
import errno
import heapq
import os
@@ -80,6 +78,14 @@ from .log import is_logging_configured
from .log import logger
+if sys.version_info[:2] >= (3, 12):
+ from . import _asynchat as asynchat
+ from . import _asyncore as asyncore
+else:
+ import asynchat
+ import asyncore
+
+
timer = getattr(time, 'monotonic', time.time)
_read = asyncore.read
_write = asyncore.write
