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Improve unnecessarily over-complicated regex #11813

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merged 2 commits into from
Apr 16, 2024

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marcusburghardt
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Description:

By any reason the regex in this rule was unnecessarily super over-complicated.

This PR updates it from:
'\s*=\s*("(?:\\"|\\\\|[^"\\\n])*"\B|[^"](?:(?:\\,|\\"|\\ |\\\\|[^", \\\n])*)\b)'

to:
'\s*=\s*(?:"?([^",\s]+)"?)'

with the same effect and very likely better performance.

Rationale:

Review Hints:

Automatus tests should be enough, but it would also be nice to play with regex101.com

@marcusburghardt marcusburghardt added bugfix Fixes to reported bugs. enhancement General enhancements to the project. labels Apr 12, 2024
@marcusburghardt marcusburghardt added this to the 0.1.73 milestone Apr 12, 2024
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Start a new ephemeral environment with changes proposed in this pull request:

rhel8 (from CTF) Environment (using Fedora as testing environment)
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Fedora Testing Environment
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Oracle Linux 8 Environment
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This datastream diff is auto generated by the check Compare DS/Generate Diff

Click here to see the full diff
bash remediation for rule 'xccdf_org.ssgproject.content_rule_sudo_custom_logfile' differs.
--- xccdf_org.ssgproject.content_rule_sudo_custom_logfile
+++ xccdf_org.ssgproject.content_rule_sudo_custom_logfile
@@ -6,7 +6,7 @@
 
 if /usr/sbin/visudo -qcf /etc/sudoers; then
     cp /etc/sudoers /etc/sudoers.bak
-    if ! grep -P '^[\s]*Defaults[\s]*\blogfile\s*=\s*("(?:\\"|\\\\|[^"\\\n])*"\B|[^"](?:(?:\\,|\\"|\\ |\\\\|[^", \\\n])*)\b)\b.*$' /etc/sudoers; then
+    if ! grep -P '^[\s]*Defaults[\s]*\blogfile\s*=\s*(?:"?([^",\s]+)"?)\b.*$' /etc/sudoers; then
         # sudoers file doesn't define Option logfile
         echo "Defaults logfile=${var_sudo_logfile}" >> /etc/sudoers
     else

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github-actions bot commented Apr 12, 2024

🤖 A k8s content image for this PR is available at:
ghcr.io/complianceascode/k8scontent:11813
This image was built from commit: 1c28e47

Click here to see how to deploy it

If you alread have Compliance Operator deployed:
utils/build_ds_container.py -i ghcr.io/complianceascode/k8scontent:11813

Otherwise deploy the content and operator together by checking out ComplianceAsCode/compliance-operator and:
CONTENT_IMAGE=ghcr.io/complianceascode/k8scontent:11813 make deploy-local

@marcusburghardt
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Testing farms are failing now because we still need to fix some minor issues with #11796.

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@jan-cerny jan-cerny left a comment

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I have checkd the regex101.com and I have reviewed the regex. I have executed the test scenarios.

The PR looks good to me.

Please rebase this on the top of the latest upstream master branch which should bring in the sssd_enable_pam_service which should make the TF tests green.

By any reason the regex in this rule was unnecessarily super
overcomplicated. It was updated from:
'\s*=\s*("(?:\\"|\\\\|[^"\\\n])*"\B|[^"](?:(?:\\,|\\"|\\ |\\\\|[^", \\\n])*)\b)'
to:
'\s*=\s*(?:"?([^",\s]+)"?)'
with the same effect and very likely better performance.
@marcusburghardt
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I have checkd the regex101.com and I have reviewed the regex. I have executed the test scenarios.

The PR looks good to me.

Please rebase this on the top of the latest upstream master branch which should bring in the sssd_enable_pam_service which should make the TF tests green.

Done

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codeclimate bot commented Apr 16, 2024

Code Climate has analyzed commit 1c28e47 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 59.2% (0.0% change).

View more on Code Climate.

@vojtapolasek
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vojtapolasek commented Apr 16, 2024

It looks good. @jan-cerny can you approve and merge please?

@jan-cerny jan-cerny merged commit 18c11e4 into ComplianceAsCode:master Apr 16, 2024
45 checks passed
@marcusburghardt marcusburghardt deleted the quoted_logfile branch April 17, 2024 06:43
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3 participants