Package: crossfire-server
Version: 1.75.0-5+b2
Severity: important
Dear Maintainer,
It seems crossfire-server was compiled using the
PyUnicode_EncodeRawUnicodeEscape workaround for Python 3.3 - 3.9 which is
deprecated in Python 3.11.
On each start crossfire-server logs the following error message in
/var/log/crossfire/logfile:
23/08/03 16:56:50 [II] plugins: loading cfanim.so
23/08/03 16:56:50 [II] plugins: loading cfcitybell.so
23/08/03 16:56:50 [II] plugins: loading cfpython.so
23/08/03 16:56:50 [EE] Error trying to load
/usr/lib/x86_64-linux-gnu/crossfire/plugins/cfpython.so:
/usr/lib/x86_64-linux-gnu/crossfire/plugins/cfpython.so: undefined symbol:
PyUnicode_EncodeRawUnicodeEscape
Subsequently game functions that require a python script do not work. Instead
errors are logged like:
[EE] The requested plugin doesn't exist: Python at 11/23 in map Old City
[EE] The requested plugin doesn't exist: Python at 5/34 in map world_105_115
[EE] The requested plugin doesn't exist: Python at 11/7 in map Starting House
[EE] The requested plugin doesn't exist: Python at 1/3 in map apartments
However, nm -gD cfpython.so | grep PyUnicode finds the symbol in
/usr/lib/crossfire/plugins/cfpython.so:
U PyUnicode_AsUnicode
U PyUnicode_AsUTF8
U PyUnicode_AsUTF8String
U PyUnicode_DecodeUnicodeEscape
U PyUnicode_EncodeRawUnicodeEscape
U PyUnicode_FromString
but it is missing from libpython3.11.so (in Debian bookworm). It was still
available in libpython3.9 in Debian buster.
I found this in the upstream source in plugins/cfpython/cjson.c :
if (PyUnicode_Check(string)) {
// PyUnicode_EncodeRawUnicodeEscape() is deprecated as of Python 3.3,
scheduled for removal in Python 3.11
#ifndef IS_PY3K3
/* HACK: Workaround for crash bug in Python3's
PyUnicode_AsRawUnicodeEscapeString... */
str = PyUnicode_EncodeRawUnicodeEscape(PyUnicode_AS_UNICODE(string),
PyUnicode_GET_SIZE(string));
#else
// The Python docs recommend using PyUnicode_AsRawUnicodeEscapeString()
or PyUnicode_AsEncodedString() over PyUnicode_EncodeRawUnicodeEscape().
str = PyUnicode_AsRawUnicodeEscapeString(string);
#endif
So it seems IS_PY3K3 was #defined at compile time, even though it should not be
for Python 3.11?
Kind regards
Oliver
-- System Information:
Debian Release: 12.1
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.1.0-10-amd64 (SMP w/12 CPU threads; PREEMPT)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8),
LANGUAGE=de_DE:de
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages crossfire-server depends on:
ii bzip2 1.0.8-5+b1
ii crossfire-common 1.75.0-5
ii crossfire-maps 1.75.0+dfsg1-1
ii init-system-helpers 1.65.2
ii libc6 2.36-9+deb12u1
ii libcrypt1 1:4.4.33-2
ii libcurl3-gnutls 7.88.1-10+deb12u1
ii libpython3.11 3.11.2-6
ii python3 3.11.2-1+b1
ii python3-bsddb3 6.2.9-2+b4
crossfire-server recommends no packages.
crossfire-server suggests no packages.
-- Configuration Files:
/etc/crossfire/dm_file changed [not included]
-- no debconf information
