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# Copyright (C) 2020 Red Hat, Inc. |
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# |
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# This copyrighted material is made available to anyone wishing to use, |
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# modify, copy, or redistribute it subject to the terms and conditions of |
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# the GNU General Public License v.2, or (at your option) any later version. |
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# This program is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY expressed or implied, including the implied warranties of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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# Public License for more details. You should have received a copy of the |
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# GNU General Public License along with this program; if not, write to the |
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# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the |
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# source code or documentation are not subject to the GNU General Public |
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# License and may only be used or replicated with the express permission of |
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# Red Hat, Inc. |
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# |
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import logging |
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import os |
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import shutil |
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from pyanaconda.core import util |
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from pyanaconda.modules.common.task import Task |
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from pyanaconda.modules.common.errors.installation import NonCriticalInstallationError |
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from org_fedora_oscap import common, data_fetch, rule_handling, utils |
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from org_fedora_oscap.common import _, get_packages_data, set_packages_data |
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log = logging.getLogger(__name__) |
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class FetchContentTask(Task): |
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"""The installation task for fetching the content.""" |
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def __init__(self, policy_data, file_path, content_path): |
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"""Create a task.""" |
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super().__init__() |
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self._policy_data = policy_data |
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self._file_path = file_path |
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self._content_path = content_path |
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@property |
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def name(self): |
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return "Fetch the content" |
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def run(self): |
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"""Run the task.""" |
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# Is the content available? |
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if os.path.exists(self._content_path): |
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log.debug("Content is already available. Skip.") |
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return |
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if os.path.exists(self._file_path): |
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log.debug("Content is already available. Skip.") |
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return |
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try: |
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data_fetch.fetch_data( |
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self._policy_data.content_url, |
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self._file_path, |
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self._policy_data.certificates |
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) |
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# RPM is an archive at this phase |
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if self._policy_data.content_type in ("archive", "rpm"): |
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# extract the content |
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common.extract_data( |
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self._file_path, |
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common.INSTALLATION_CONTENT_DIR, |
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[self._policy_data.content_path] |
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) |
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except (common.OSCAPaddonError, data_fetch.DataFetchError) as e: |
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log.error("Failed to fetch SCAP content!") |
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raise NonCriticalInstallationError(_( |
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"There was an error fetching the security content:\n%s\n" |
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"The installation should be aborted." |
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) % e) |
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class CheckFingerprintTask(Task): |
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"""The installation task for checking the fingerprint.""" |
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def __init__(self, policy_data, file_path): |
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"""Create a task.""" |
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super().__init__() |
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self._policy_data = policy_data |
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self._file_path = file_path |
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@property |
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def name(self): |
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return "Check the fingerprint" |
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def run(self): |
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"""Run the task.""" |
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if not self._policy_data.fingerprint: |
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log.debug("No fingerprint is provided. Skip.") |
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return |
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hash_obj = utils.get_hashing_algorithm(self._policy_data.fingerprint) |
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digest = utils.get_file_fingerprint(self._file_path, hash_obj) |
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if digest != self._policy_data.fingerprint: |
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log.error("Failed to fetch and initialize SCAP content!") |
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raise NonCriticalInstallationError(_( |
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"The integrity check of the security content failed.\n" + |
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"The installation should be aborted." |
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)) |
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class EvaluateRulesTask(Task): |
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"""The installation task for the evaluation of the rules.""" |
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def __init__(self, policy_data, content_path, tailoring_path): |
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"""Create a task.""" |
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super().__init__() |
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self._policy_data = policy_data |
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self._content_path = content_path |
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self._tailoring_path = tailoring_path |
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@property |
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def name(self): |
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return "Evaluate the rules" |
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def run(self): |
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"""Run the task.""" |
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rule_data = self._initialize_rules() |
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self._evaluate_rules(rule_data) |
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def _initialize_rules(self): |
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try: |
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rules = common.get_fix_rules_pre( |
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self._policy_data.profile_id, |
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self._content_path, |
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self._policy_data.datastream_id, |
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self._policy_data.xccdf_id, |
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self._tailoring_path |
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) |
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# parse and store rules |
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rule_data = rule_handling.RuleData() |
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for rule in rules.splitlines(): |
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rule_data.new_rule(rule) |
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return rule_data |
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except common.OSCAPaddonError as e: |
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log.error("Failed to load SCAP content!") |
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raise NonCriticalInstallationError(_( |
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"There was an error loading the security content:\n%s\n" |
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"The installation should be aborted." |
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) % e) |
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def _evaluate_rules(self, rule_data): |
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# evaluate rules, do automatic fixes and stop if something that cannot |
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# be fixed automatically is wrong |
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all_messages = rule_data.eval_rules(None, None) |
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fatal_messages = [m for m in all_messages if m.type == common.MESSAGE_TYPE_FATAL] |
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if any(fatal_messages): |
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raise NonCriticalInstallationError(_( |
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"There was a wrong configuration detected:\n%s\n" |
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"The installation should be aborted." |
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) % "\n".join(message.text for message in fatal_messages)) |
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# add packages needed on the target system to the list of packages |
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# that are requested to be installed |
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packages_data = get_packages_data() |
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pkgs_to_install = list(REQUIRED_PACKAGES) |
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if self._policy_data.content_type == "scap-security-guide": |
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pkgs_to_install.append("scap-security-guide") |
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for pkg in pkgs_to_install: |
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if pkg not in packages_data.packages: |
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packages_data.packages.append(pkg) |
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set_packages_data(packages_data) |
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class InstallContentTask(Task): |
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"""The installation task for installation of the content.""" |
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def __init__(self, sysroot, policy_data, file_path, |
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content_path, tailoring_path, target_directory): |
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"""Create a task.""" |
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super().__init__() |
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self._sysroot = sysroot |
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self._policy_data = policy_data |
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self._file_path = file_path |
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self._content_path = content_path |
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self._tailoring_path = tailoring_path |
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self._target_directory = target_directory |
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@property |
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def name(self): |
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return "Install the content" |
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def run(self): |
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"""Run the task.""" |
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target_content_dir = utils.join_paths( |
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self._sysroot, |
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self._target_directory |
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) |
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utils.ensure_dir_exists(target_content_dir) |
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if self._policy_data.content_type == "scap-security-guide": |
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pass # nothing needed |
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elif self._policy_data.content_type == "datastream": |
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shutil.copy2(self._content_path, target_content_dir) |
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elif self._policy_data.content_type == "rpm": |
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# copy the RPM to the target system |
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shutil.copy2(self._file_path, target_content_dir) |
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# get the path of the RPM |
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content_name = common.get_content_name(self._policy_data) |
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package_path = utils.join_paths(self._target_directory, content_name) |
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# and install it with yum |
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ret = util.execInSysroot( |
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"yum", ["-y", "--nogpg", "install", package_path] |
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) |
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if ret != 0: |
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raise common.ExtractionError( |
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"Failed to install content RPM to the target system" |
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) |
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else: |
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pattern = utils.join_paths(common.INSTALLATION_CONTENT_DIR, "*") |
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utils.universal_copy(pattern, target_content_dir) |
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if os.path.exists(self._tailoring_path): |
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shutil.copy2(self._tailoring_path, target_content_dir) |
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class SetupPackages(Task) |
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class RemediateSystemTask(Task): |
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"""The installation task for running the remediation.""" |
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def __init__(self, sysroot, policy_data, target_content_path, |
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target_tailoring_path): |
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"""Create a task.""" |
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super().__init__() |
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self._sysroot = sysroot |
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self._policy_data = policy_data |
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self._target_content_path = target_content_path |
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self._target_tailoring_path = target_tailoring_path |
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@property |
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def name(self): |
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return "Remediate the system" |
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def run(self): |
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"""Run the task.""" |
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common.run_oscap_remediate( |
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self._policy_data.profile_id, |
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self._target_content_path, |
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self._policy_data.datastream_id, |
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self._policy_data.xccdf_id, |
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self._target_tailoring_path, |
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chroot=self._sysroot |
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) |
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OpenSCAP /
oscap-anaconda-addon
