python-gssapi/setup.py at main · sanglist/python-gssapi · GitHub

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#!/usr/bin/env python

import subprocess

import platform

import re

import sys

import os

import shutil

import shlex

# Enables the vendored distutils in setuptools over the stdlib one to avoid

# the deprecation warning. Must be done before importing setuptools,

# setuptools also must be imported before distutils.

# https://github.com/pypa/setuptools/blob/main/docs/deprecated/distutils-legacy.rst

os.environ['SETUPTOOLS_USE_DISTUTILS'] = 'local'

from setuptools import setup # noqa: E402

from setuptools.extension import Extension # noqa: E402

from Cython.Build import cythonize # noqa: E402

def get_output(*args, **kwargs):

res = subprocess.check_output(*args, shell=True, **kwargs)

decoded = res.decode('utf-8')

return decoded.strip()

# get the compile and link args

kc = "krb5-config"

autodetect_kc = True

posix = os.name != 'nt'

# Per https://docs.python.org/3/library/platform.html#platform.architecture

# this is the preferred way of determining "64-bitness".

is64bit = sys.maxsize > 2**32

kc_env = 'GSSAPI_KRB5CONFIG'

if kc_env in os.environ:

kc = os.environ[kc_env]

autodetect_kc = False

print(f"Using {kc} from env")

link_args, compile_args = [

shlex.split(os.environ[e], posix=posix) if e in os.environ else None

for e in ['GSSAPI_LINKER_ARGS', 'GSSAPI_COMPILER_ARGS']

]

osx_has_gss_framework = False

if sys.platform == 'darwin':

mac_ver = [int(v) for v in platform.mac_ver()[0].split('.')]

osx_has_gss_framework = (mac_ver >= [10, 7, 0])

winkrb_path = None

if os.name == 'nt':

# Try to find location of MIT kerberos

# First check program files of the appropriate architecture

_pf_path = os.path.join(os.environ['ProgramFiles'], 'MIT', 'Kerberos')

if os.path.exists(_pf_path):

winkrb_path = _pf_path

else:

# Try to detect kinit in PATH

_kinit_path = shutil.which('kinit')

if _kinit_path is None:

print("Failed find MIT kerberos!")

else:

winkrb_path = os.path.dirname(os.path.dirname(_kinit_path))

# Monkey patch distutils if it throws errors getting msvcr.

# For MinGW it won't need it.

from distutils import cygwinccompiler

try:

cygwinccompiler.get_msvcr()

except ValueError:

cygwinccompiler.get_msvcr = lambda *a, **kw: []

if sys.platform.startswith("freebsd") and autodetect_kc:

# FreeBSD does $PATH backward, for our purposes. That is, the package

# manager's version of the software is in /usr/local, which is in PATH

# *after* the version in /usr. We prefer the package manager's version

# because the Heimdal in base is truly ancient, but this can be overridden

# - either in the "normal" fashion by putting something in PATH in front

# of it, or by removing /usr/local from PATH.

bins = []

for b in os.environ["PATH"].split(":"):

p = f"{b}/krb5-config"

if not os.path.exists(p):

continue

bins.append(p)

if len(bins) > 1 and bins[0] == "/usr/bin/krb5-config" and \

"/usr/local/bin/krb5-config" in bins:

kc = "/usr/local/bin/krb5-config"

print(f"Detected: {kc}")

if link_args is None:

if osx_has_gss_framework:

link_args = ['-framework', 'GSS']

elif winkrb_path:

_libs = os.path.join(

winkrb_path, 'lib', 'amd64' if is64bit else 'i386'

)

link_args = (

['-L%s' % _libs]

+ ['-l%s' % os.path.splitext(lib)[0] for lib in os.listdir(_libs)]

)

elif os.environ.get('MINGW_PREFIX'):

link_args = ['-lgss']

else:

link_args = shlex.split(get_output(f"{kc} --libs gssapi"))

if compile_args is None:

if osx_has_gss_framework:

compile_args = ['-DOSX_HAS_GSS_FRAMEWORK']

elif winkrb_path:

compile_args = [

'-I%s' % os.path.join(winkrb_path, 'include'),

]

if is64bit:

compile_args.append('-DMS_WIN64')

elif os.environ.get('MINGW_PREFIX'):

compile_args = ['-fPIC']

else:

compile_args = shlex.split(get_output(f"{kc} --cflags gssapi"))

# add in the extra workarounds for different include structures

if winkrb_path:

prefix = winkrb_path

else:

try:

prefix = get_output(f"{kc} gssapi --prefix")

except Exception:

print("WARNING: couldn't find krb5-config; assuming prefix of %s"

% str(sys.prefix))

prefix = sys.prefix

gssapi_ext_h = os.path.join(prefix, 'include/gssapi/gssapi_ext.h')

if os.path.exists(gssapi_ext_h):

compile_args.append("-DHAS_GSSAPI_EXT_H")

# Create a define to detect msys in the headers

if sys.platform == 'msys':

compile_args.append('-D__MSYS__')

# ensure that any specific directories are listed before any generic system

# directories inserted by setuptools

# Also separate out specified libraries as MSBuild requires different args

_link_args = link_args

library_dirs, libraries, link_args = [], [], []

for arg in _link_args:

if arg.startswith('-L'):

library_dirs.append(arg[2:])

elif arg.startswith('-l'):

libraries.append(arg[2:])

else:

link_args.append(arg)

ENABLE_SUPPORT_DETECTION = \

(os.environ.get('GSSAPI_SUPPORT_DETECT', 'true').lower() == 'true')

if ENABLE_SUPPORT_DETECTION:

import ctypes.util

main_lib = os.environ.get('GSSAPI_MAIN_LIB', None)

main_path = ""

if main_lib is None and osx_has_gss_framework:

main_lib = ctypes.util.find_library('GSS')

if not main_lib:

# https://github.com/pythongssapi/python-gssapi/issues/235

# CPython has a bug on Big Sur where find_library will fail to

# find the library path of shared frameworks. This has been fixed

# in newer versions but we have this fallback in case an older

# version is still in use. This fix is expected to be included in

# 3.8.8 and 3.9.2.

main_lib = '/System/Library/Frameworks/GSS.framework/GSS'

elif os.environ.get('MINGW_PREFIX'):

main_lib = os.environ.get('MINGW_PREFIX')+'/bin/libgss-3.dll'

elif sys.platform == 'msys':

# Plain msys, not running in MINGW_PREFIX. Try to get the lib from one

_main_lib = f'/mingw{64 if is64bit else 32}/bin/libgss-3.dll'

if os.path.exists(_main_lib):

main_lib = _main_lib

os.environ['PATH'] += os.pathsep + os.path.dirname(main_lib)

elif main_lib is None:

for opt in libraries:

if 'gssapi' in opt:

if os.name == 'nt':

main_lib = '%s.dll' % opt

if winkrb_path:

main_path = os.path.join(winkrb_path, 'bin')

else:

main_lib = 'lib%s.so' % opt

for opt in link_args:

# To support Heimdal on Debian, read the linker path.

if opt.startswith('-Wl,/'):

main_path = opt[4:] + "/"

if main_path == "":

for d in library_dirs:

if os.path.exists(os.path.join(d, main_lib)):

main_path = d

break

if main_lib is None:

raise Exception("Could not find main GSSAPI shared library. Please "

"try setting GSSAPI_MAIN_LIB yourself or setting "

"GSSAPI_SUPPORT_DETECT to 'false'")

GSSAPI_LIB = ctypes.CDLL(os.path.join(main_path, main_lib))

def make_extension(name_fmt, module, **kwargs):

"""Helper method to remove the repetition in extension declarations."""

source = name_fmt.replace('.', '/') % module + '.pyx'

if not os.path.exists(source):

raise OSError(source)

return Extension(

name_fmt % module,

extra_link_args=link_args,

extra_compile_args=compile_args,

library_dirs=library_dirs,

libraries=libraries,

sources=[source],

**kwargs

)

# detect support

def main_file(module):

return make_extension('gssapi.raw.%s', module)

ENUM_EXTS = []

def extension_file(module, canary):

if ENABLE_SUPPORT_DETECTION and not hasattr(GSSAPI_LIB, canary):

print('Skipping the %s extension because it '

'is not supported by your GSSAPI implementation...' % module)

return

try:

ENUM_EXTS.append(

make_extension('gssapi.raw._enum_extensions.ext_%s', module,

include_dirs=['gssapi/raw/'])

)

except OSError:

pass

return make_extension('gssapi.raw.ext_%s', module)

def gssapi_modules(lst):

# filter out missing files

res = [mod for mod in lst if mod is not None]

# add in supported mech files

res.extend(

make_extension('gssapi.raw.mech_%s', mech)

for mech in os.environ.get('GSSAPI_MECHS', 'krb5').split(',')

)

# add in any present enum extension files

res.extend(ENUM_EXTS)

return cythonize(res, language_level=2)

long_desc = re.sub(r'\.\. role:: \w+$code$\s*\n\s*.+', '',

re.sub(r':(python|bash|code):', '',

re.sub(r'\.\. code-block:: \w+', '::',

open('README.txt').read())))

install_requires = [

'decorator',

]

setup(

name='gssapi',

version='1.8.4',

author='The Python GSSAPI Team',

author_email='jborean93@gmail.com',

packages=['gssapi', 'gssapi.raw', 'gssapi.raw._enum_extensions',

'gssapi.tests'],

package_data={

"gssapi": ["py.typed"],

"gssapi.raw": ["*.pyi"],

description='Python GSSAPI Wrapper',

long_description=long_desc,

license='LICENSE.txt',

url="https://github.com/pythongssapi/python-gssapi",

python_requires=">=3.7",

classifiers=[

'Development Status :: 5 - Production/Stable',

'Programming Language :: Python',

'Programming Language :: Python :: 3',

'Programming Language :: Python :: 3.7',

'Programming Language :: Python :: 3.8',

'Programming Language :: Python :: 3.9',

'Programming Language :: Python :: 3.10',

'Programming Language :: Python :: 3.11',

'Programming Language :: Python :: 3.12',

'Intended Audience :: Developers',

'License :: OSI Approved :: ISC License (ISCL)',

'Programming Language :: Python :: Implementation :: CPython',

'Programming Language :: Cython',

'Topic :: Security',

'Topic :: Software Development :: Libraries :: Python Modules'

ext_modules=gssapi_modules([

main_file('misc'),

main_file('exceptions'),

main_file('creds'),

main_file('names'),

main_file('sec_contexts'),

main_file('types'),

main_file('message'),

main_file('oids'),

main_file('cython_converters'),

main_file('chan_bindings'),

extension_file('s4u', 'gss_acquire_cred_impersonate_name'),

extension_file('cred_store', 'gss_store_cred_into'),

extension_file('rfc4178', 'gss_set_neg_mechs'),

extension_file('rfc5587', 'gss_indicate_mechs_by_attrs'),

extension_file('rfc5588', 'gss_store_cred'),

extension_file('rfc5801', 'gss_inquire_saslname_for_mech'),

extension_file('cred_imp_exp', 'gss_import_cred'),

extension_file('dce',

'__ApplePrivate_gss_wrap_iov' if osx_has_gss_framework

else 'gss_wrap_iov'),

extension_file('dce_aead', 'gss_wrap_aead'),

extension_file('iov_mic', 'gss_get_mic_iov'),

extension_file('ggf', 'gss_inquire_sec_context_by_oid'),

extension_file('set_cred_opt', 'gss_set_cred_option'),

# see ext_rfc6680_comp_oid for more information on this split

extension_file('rfc6680', 'gss_display_name_ext'),

extension_file('rfc6680_comp_oid', 'GSS_C_NT_COMPOSITE_EXPORT'),

# see ext_password{,_add}.pyx for more information on this split

extension_file('password', 'gss_acquire_cred_with_password'),

extension_file('password_add', 'gss_add_cred_with_password'),

extension_file('krb5', 'gss_krb5_ccache_name'),

]),

keywords=['gssapi', 'security'],

install_requires=install_requires

)

python-gssapi/setup.py at main · sanglist/python-gssapi · GitHub

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