docker-offlineimap/offlineimap/utils/distro_utils.py
Rodolfo García Peñas (kix) e5f0f10334 distro_utils.py renamed variable f
The variable f is renamed to l_file to avoid pylint warning:

utils/distro_utils.py:95:8: C0103: Variable name "f" doesn't conform to snake_case naming style (invalid-name)
2020-11-01 08:31:47 +01:00

99 lines
3.0 KiB
Python

"""
Copyright 2006-2018 Eygene A. Ryabinkin & contributors.
Module that supports distribution-specific functions.
"""
import platform
import os
# linux_distribution deprecated in Python 3.7
try:
from platform import linux_distribution
except ImportError:
from distro import linux_distribution
# For the former we will just return the value, for an iterable
# we will walk through the values and will return the first
# one that corresponds to the existing file.
__DEF_OS_LOCATIONS = {
'freebsd': ['/usr/local/share/certs/ca-root-nss.crt'],
'openbsd': ['/etc/ssl/cert.pem'],
'dragonfly': ['/etc/ssl/cert.pem'],
'darwin': [
# MacPorts, port curl-ca-bundle
'/opt/local/share/curl/curl-ca-bundle.crt',
# homebrew, package openssl
'/usr/local/etc/openssl/cert.pem',
],
'linux-ubuntu': ['/etc/ssl/certs/ca-certificates.crt'],
'linux-debian': ['/etc/ssl/certs/ca-certificates.crt'],
'linux-gentoo': ['/etc/ssl/certs/ca-certificates.crt'],
'linux-fedora': ['/etc/pki/tls/certs/ca-bundle.crt'],
'linux-redhat': ['/etc/pki/tls/certs/ca-bundle.crt'],
'linux-suse': ['/etc/ssl/ca-bundle.pem'],
'linux-opensuse': ['/etc/ssl/ca-bundle.pem'],
'linux-arch': ['/etc/ssl/certs/ca-certificates.crt'],
}
def get_os_name():
"""
Finds out OS name. For non-Linux system it will be just a plain
OS name (like FreeBSD), for Linux it will be "linux-<distro>",
where <distro> is the name of the distribution, as returned by
the first component of platform.linux_distribution.
Return value will be all-lowercase to avoid confusion about
proper name capitalisation.
"""
os_name = platform.system().lower()
if os_name.startswith('linux'):
distro_name = linux_distribution()[0]
if distro_name:
os_name = os_name + "-%s" % distro_name.split()[0].lower()
if os.path.exists('/etc/arch-release'):
os_name = "linux-arch"
return os_name
def get_os_sslcertfile_searchpath():
"""Returns search path for CA bundle for the current OS.
We will return an iterable even if configuration has just
a single value: it is easier for our callers to be sure
that they can iterate over result.
Returned value of None means that there is no search path
at all.
"""
os_name = get_os_name()
location = __DEF_OS_LOCATIONS.get(os_name, None)
return location
def get_os_sslcertfile():
"""
Finds out the location for the distribution-specific
CA certificate file bundle.
Returns the location of the file or None if there is
no known CA certificate file or all known locations
correspond to non-existing filesystem objects.
"""
location = get_os_sslcertfile_searchpath()
if location is None:
return None
for l_file in location:
assert isinstance(l_file, str)
if os.path.exists(l_file) and (os.path.isfile(l_file) or
os.path.islink(l_file)):
return l_file
return None