Switch to distro package for os recognition.

SCAutolib/controller.py

@@ -12,10 +12,11 @@
 from SCAutolib.models import CA, file, user, card, authselect as auth
 from SCAutolib.models.file import File, OpensslCnf
 from SCAutolib.models.CA import BaseCA
-from SCAutolib.enums import (OSVersion, CardType, UserType)
+from SCAutolib.enums import (CardType, UserType)
 from SCAutolib.utils import (_check_selinux, _gen_private_key,
-                             _get_os_version, _install_packages,
-                             _check_packages, dump_to_json, ca_factory)
+                             _install_packages, _check_packages,
+                             dump_to_json, ca_factory)
+from SCAutolib.isDistro import isDistro
 
 
 class Controller:
@@ -140,8 +141,6 @@ def setup_system(self, install_missing: bool, gdm: bool, graphical: bool):
         :type graphical: bool
         :return:
         """
-        os_version = _get_os_version()
-
         for d in (LIB_DIR, LIB_BACKUP, LIB_DUMP, LIB_DUMP_USERS, LIB_DUMP_CAS,
                   LIB_DUMP_CARDS):
             d.mkdir(exist_ok=True)
@@ -161,7 +160,7 @@ def setup_system(self, install_missing: bool, gdm: bool, graphical: bool):
             packages += ["pcsc-lite-ccid", "pcsc-lite", "virt_cacard",
                          "vpcd", "softhsm"]
             extra_args = ""
-            if os_version in (OSVersion.RHEL_10, OSVersion.CentOS_10):
+            if isDistro(['rhel', 'centos'], version='10'):
                 # TODO: use better approach later
                 extra_args = " centos-stream-10-x86_64"
             run("dnf -y copr enable jjelen/vsmartcard{0}".format(extra_args))
@@ -181,9 +180,8 @@ def setup_system(self, install_missing: bool, gdm: bool, graphical: bool):
             logger.critical(msg)
             raise exceptions.SCAutolibException(msg)
 
-        print(f"Os version: {os_version}")
         if graphical:
-            if os_version != OSVersion.Fedora:
+            if not isDistro('fedora'):
                 run(['dnf', 'groupinstall', 'Server with GUI', '-y',
                      '--allowerasing'])
                 run(['pip', 'install', 'python-uinput'])
@@ -199,7 +197,7 @@ def setup_system(self, install_missing: bool, gdm: bool, graphical: bool):
             self.dconf_file.save()
             run('dconf update')
 
-        if os_version != OSVersion.Fedora:
+        if not isDistro('fedora'):
             run(['dnf', 'groupinstall', "Smart Card Support", '-y',
                  '--allowerasing'])
             logger.debug("Smart Card Support group in installed.")
@@ -538,13 +536,12 @@ def _general_steps_for_ipa():
 
         :return: name of the IPA client package for current Linux
         """
-        os_version = _get_os_version()
-        if os_version in (OSVersion.RHEL_8, OSVersion.CentOS_8):
+        if isDistro(['rhel', 'centos'], version='8'):
             run("dnf module enable -y idm:DL1")
             run("dnf install @idm:DL1 -y")
             logger.debug("idm:DL1 module is installed")
 
-        if os_version == OSVersion.Fedora:
+        if isDistro('fedora'):
             return ["freeipa-client"]
         else:
             return ["ipa-client"]

SCAutolib/isDistro.py

@@ -0,0 +1,50 @@
+"""
+This module provides a function (isDistro) that helps us identify the os
+of the system and configure the system accordingly.
+"""
+
+import distro
+from typing import Union
+
+
+def isDistro(oses: Union[str, list], version: str = None) -> bool:
+    cur_id = distro.id().lower()
+    cur_name = distro.name().lower()
+
+    if isinstance(oses, str):
+        results = (oses in cur_id) or (oses in cur_name)
+    else:
+        results = False
+        for item in oses:
+            if not isinstance(item, str):
+                continue
+            item = item.lower()
+            results = results or (item in cur_id) or (item in cur_name)
+
+    if results is False:
+        return False
+
+    if version:
+        cur_major = int(distro.major_version())
+        cur_minor = int(distro.minor_version()) if distro.minor_version() else 0
+
+        if version[0] in ('<', '=', '>'):
+            if version[1] == '=':
+                op = version[:2]
+                version = version[2:]
+            else:
+                op = version[0] if version[0] != '=' else '=='
+                version = version[1:]
+        else:
+            op = '=='
+
+        parts = version.split('.')
+        major = int(parts[0])
+        minor = int(parts[1]) if len(parts) > 1 else None
+
+        if major == cur_major and minor:
+            return eval("{0} {1} {2}".format(cur_minor, op, minor))
+        else:
+            return eval("{0} {1} {2}".format(cur_major, op, major))
+
+    return True

SCAutolib/models/file.py

@@ -26,6 +26,7 @@
 
 from SCAutolib import logger, TEMPLATES_DIR, LIB_BACKUP, LIB_DUMP_CONFS, run
 from SCAutolib.exceptions import SCAutolibException
+from SCAutolib.isDistro import isDistro
 
 
 class File:
@@ -297,10 +298,8 @@ def __init__(self):
             return
         self.__initialized = True
 
-        with open('/etc/redhat-release', "r") as f:
-            release = f.read()
-
-        if "release 8" in release or "release 9" in release:
+        if isDistro(['rhel', 'centos'], version='<=9') \
+                or isDistro(['fedora'], version='<39'):
             self._template = TEMPLATES_DIR.joinpath("sssd.conf-8or9")
         else:
             self._template = TEMPLATES_DIR.joinpath("sssd.conf-10")

SCAutolib/models/gui.py

@@ -12,8 +12,7 @@
 import logging
 
 from SCAutolib import run, logger
-from SCAutolib.enums import OSVersion
-from SCAutolib.utils import _get_os_version
+from SCAutolib.isDistro import isDistro
 
 
 class HTMLFileHandler(logging.FileHandler):
@@ -487,8 +486,7 @@ def check_home_screen(self, polarity: bool = True):
         else:
             func_str = 'assert_no_text'
 
-        os_version = _get_os_version()
-        if os_version == OSVersion.Fedora:
+        if isDistro('fedora'):
             check_str = 'tosearch'
         else:
             check_str = 'Activities'

SCAutolib/utils.py

@@ -10,7 +10,6 @@
 
 from SCAutolib import (run, logger, TEMPLATES_DIR, LIB_DUMP_USERS, LIB_DUMP_CAS,
                        LIB_DUMP_CARDS)
-from SCAutolib.enums import OSVersion
 from SCAutolib.exceptions import SCAutolibException
 from SCAutolib.models.CA import LocalCA, BaseCA, CustomCA, IPAServerCA
 from SCAutolib.models.card import Card
@@ -58,33 +57,6 @@ def _gen_private_key(key_path: Path):
             encryption_algorithm=serialization.NoEncryption()))
 
 
-def _get_os_version():
-    """
-    Find Linux version. Available version: RHEL 8, RHEL 9, RHEL 10, Fedora.
-    :return: Enum with OS version
-    """
-    with open('/etc/redhat-release', "r") as f:
-        cnt = f.read()
-
-    os_version = None
-
-    if "Fedora" in cnt:
-        return OSVersion.Fedora
-    elif "Red Hat Enterprise Linux" in cnt:
-        os_version = OSVersion.RHEL_8
-    elif "CentOS Stream" in cnt:
-        os_version = OSVersion.CentOS_8
-    else:
-        raise SCAutolibException("OS is not detected.")
-
-    if "release 9" in cnt:
-        os_version += 1
-    elif "release 10" in cnt:
-        os_version += 2
-
-    return os_version
-
-
 def _install_packages(packages):
     """
     Install given packages and log package version

requirements.txt

@@ -7,3 +7,4 @@ pytest>=7
 schema>=0.7
 python_freeipa>=1.0
 pexpect>=4
+distro>=1.5.0