fix: log the actual kubescape response body on scan errors

[magic-peach]

readKubescapeV1ScanResponse builds its error with fmt.Errorf("...body: %s", resp.StatusCode, resp.Body) when the scan endpoint returns a non-200. resp.Body is an io.ReadCloser, so %s never prints the actual response text — it prints Go's reflection dump of the internal *http.body struct instead, which is useless for figuring out why kubescape rejected the scan.

Moved the io.ReadAll above the status check (it already happens on the success path) and used the bytes in the error message instead. Added a test against a real httptest server so it actually exercises the concrete resp.Body type instead of a hand-built one that would mask this.

Summary by CodeRabbit

• Bug Fixes
  • Improved error messages for failed scan responses by including details returned by the server.
  • Ensured response-reading errors are reported clearly before validating the HTTP status.

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[coderabbitai]

📝 Walkthrough

Walkthrough

The response reader now buffers HTTP response bodies before status validation. Non-200 errors include the body text. A regression test verifies this behavior with an HTTP 500 response.

Changes

Kubescape response error handling

Layer / File(s)	Summary
Buffered error response handling mainhandler/kubescapehandlerhelper.go, mainhandler/kubescapehandlerhelper_test.go	readKubescapeV1ScanResponse reads the response body before validating the status. Non-200 errors include the body contents. The test uses an httptest server to verify HTTP 500 error output.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: 🔵 Low · up to 761b5

The change improves scan-error diagnostics, but its new test request has no timeout and could hang CI if the test server stalls. The PR is otherwise mergeable with explicit owner follow-up.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 3 functions across 2 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: logging the actual Kubescape response body for scan errors.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@mainhandler/kubescapehandlerhelper_test.go`:
- Around line 272-273: Replace the http.Get call in this test with a
context-aware request created by http.NewRequestWithContext using a short
timeout, then execute it through http.DefaultClient.Do while preserving the
existing error assertion and response handling.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 25f74f9c-3ce2-4457-bd8d-987b3f6d3ba0

📥 Commits

Reviewing files that changed from the base of the PR and between e10569c and 761b514.

📒 Files selected for processing (2)

• mainhandler/kubescapehandlerhelper.go
• mainhandler/kubescapehandlerhelper_test.go

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

[matthyx]

Confirmed the bug: %s on resp.Body (an io.ReadCloser) was printing Go's struct dump instead of the response text, so scan-failure logs never showed what kubescape actually said. Moving io.ReadAll above the status check and formatting string(bodyBytes) fixes this correctly — the body is still read/closed exactly once regardless of status, and the only caller (kubescapehandler.go) just checks the returned error, so no behavior elsewhere depends on the old ordering. The added httptest-backed test genuinely exercises the concrete resp.Body type that caused the original bug, and it responds synchronously so there's no CI-hang risk. No blockers.