fix(github): return error when webhook secret is missing by Rudra2637 · Pull Request #1038 · corsairdev/corsair

Rudra2637 · 2026-08-24T14:08:10Z

Description

Closes #688

When webhookSecret was missing or empty, verifyGithubWebhookSignature previously returned { valid: false } without an error property. This caused downstream webhook handlers to fall back to generic error messages, obscuring the actual root cause (missing configuration).

Changes:

Updated verifyGithubWebhookSignature in packages/github/webhooks/types.ts to return { valid: false, error: 'Missing webhook secret' } when webhookSecret is missing.
Updated unit tests in packages/github/webhooks.test.ts to assert that { valid: false, error: 'Missing webhook secret' } is returned.

Checklist

Before submitting your PR, please verify the following:

I have run pnpm lint and all checks pass
I have run pnpm typecheck and there are no TypeScript errors
I have run pnpm build and all packages build successfully
I have run pnpm test and all tests pass
I have added or updated tests where applicable
I have added or updated necessary documentation

Screenshots / Demos (if applicable)

Additional Notes

None.

Summary by CodeRabbit

Bug Fixes

GitHub webhook validation now provides a clear “Missing webhook secret” error when no secret is configured.
Webhook signature verification continues to correctly handle valid and invalid signatures, missing request data, and supported signature header formats.
Event matching now reliably supports event types, actions, and JSON request bodies.

vercel · 2026-08-24T14:08:18Z

@Rudra2637 is attempting to deploy a commit to the corsair Team on Vercel.

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coderabbitai · 2026-08-24T14:08:35Z

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Reviewing files that changed from the base of the PR and between 5f40eab and 22af27c.

📒 Files selected for processing (1)

packages/github/webhooks.test.ts

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📝 Walkthrough

Walkthrough

The webhook verifier now reports "Missing webhook secret" for undefined or empty secrets. Tests now cover signature validation, supported header formats, and GitHub event and action matching.

Changes

Webhook validation

Layer / File(s)	Summary
Signature verification behavior and tests `packages/github/webhooks/types.ts`, `packages/github/webhooks.test.ts`	The verifier returns a missing-secret error. Tests cover missing inputs, invalid signatures, valid HMAC signatures, and array-form signature headers.
GitHub event matching tests `packages/github/webhooks.test.ts`	Tests cover event headers, action matching, action mismatches, and JSON string body parsing.

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

Merge Risk: ⚪ Minimal · up to 22af2

This PR makes webhook-secret validation return a specific configuration error and updates the related tests. No actionable merge-blocking risk remains beyond normal checks and review.

Suggested reviewers: dhirenderchoudhary, yuvrxj-afk

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The implementation returns the required error for missing secrets, and the test covers the empty-secret case without changing other paths.
Out of Scope Changes check	✅ Passed	The changes are limited to the requested webhook behavior and its unit test.
Docstring Coverage	✅ Passed	Docstring check was indeterminate for this PR — some files could not be analyzed in time. Not blocking.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: returning an error when the webhook secret is missing.

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

Create stacked PR
Commit on current branch

🧪 Generate unit tests (beta)

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Actionable comments posted: 1

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Inline comments:
In `@packages/github/webhooks.test.ts`:
- Line 21: Extend the webhook secret validation test to cover both undefined and
empty-string webhookSecret values, preferably by parameterizing the existing
case or adding a second assertion, while preserving the expected “Missing
webhook secret” error.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

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Run ID: 0ac69bd2-57b7-40e5-8011-7eed4187b7e5

📥 Commits

Reviewing files that changed from the base of the PR and between 2ef5416 and 9595abb.

📒 Files selected for processing (2)

packages/github/webhooks.test.ts
packages/github/webhooks/types.ts

Included review availability: Your plan provides up to 10 included reviews per hour; 9 remain after this review.

greptile-apps · 2026-08-24T14:12:31Z

Greptile Summary

This PR makes GitHub webhook verification return a specific configuration error when the webhook secret is missing or empty.

Adds the missing-secret error to the existing failed-verification result.
Expands webhook signature and event-matching unit coverage.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
packages/github/webhooks/types.ts	Adds the documented error message to the existing missing-secret rejection path.
packages/github/webhooks.test.ts	Expands coverage for GitHub webhook verification outcomes and event matching.

_{Reviews (2): Last reviewed commit: "test(github): expand webhook signature v..." | Re-trigger Greptile}

… test coverage

Dhirenderchoudhary · 2026-08-24T23:01:02Z

@greptile

Dhirenderchoudhary

LGTM with test cases

fix(github): return error when webhook secret is missing

9595abb

github-actions Bot added the plugin Changes inside a plugin package label Aug 24, 2026

Dhirenderchoudhary self-requested a review August 24, 2026 14:09

coderabbitai Bot reviewed Aug 24, 2026

View reviewed changes

Comment thread packages/github/webhooks.test.ts

Rudra2637 and others added 2 commits August 24, 2026 19:44

test(github): cover empty string webhook secret validation

5f40eab

test(github): expand webhook signature verification and event matcher…

22af27c

… test coverage

Dhirenderchoudhary approved these changes Aug 24, 2026

View reviewed changes

chore: trigger CI

59c8ab8

Dhirenderchoudhary self-assigned this Aug 25, 2026

devjain32 approved these changes Aug 27, 2026

View reviewed changes

devjain32 merged commit 93ad8ed into corsairdev:main Aug 27, 2026
7 of 8 checks passed

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fix(github): return error when webhook secret is missing - #1038

fix(github): return error when webhook secret is missing#1038
devjain32 merged 4 commits into
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Rudra2637:fix/github-webhook-secret-validation

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Rudra2637 commented Aug 24, 2026 • edited by coderabbitai Bot Loading Uh oh! There was an error while loading. Please reload this page.

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Description

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Greptile Summary

Confidence Score: 5/5

Important Files Changed

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Rudra2637 commented Aug 24, 2026 •

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