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fix(middleware/cors): CORS handling #2937

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merged 3 commits into from Mar 26, 2024
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@sixcolors sixcolors commented Mar 26, 2024

This pull request addresses issue #2936, fixing a bug introduced in the Fiber v2.52.3 release. The bug caused incorrect checking of non-preflight requests using preflight conditions.

Fiber CORS middleware validation sample: https://github.com/sixcolors/fiber-cors-middleware-validation-sample

Summary by CodeRabbit

Summary by CodeRabbit

  • Refactor
    • Refined CORS request handling logic to better determine scope based on specific headers.
  • Tests
    • Updated and refactored CORS-related test cases to align with the new request handling logic.
  • Chores
    • Removed setting fiber.HeaderAccessControlRequestMethod in various test cases.
    • Adjusted benchmark tests by removing fiber.HeaderAccessControlRequestMethod settings.
    • Updated test descriptions to reflect changes in headers handling.
    • Refactored test cases for different request scenarios.

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Walkthrough

The changes involve refining the CORS middleware's request handling by adjusting header conditions in the cors.go file. The corresponding test suite in cors_test.go has been updated to align with these header handling modifications, including the removal and adjustment of specific header settings in test scenarios.

Changes

Files Change Summary
middleware/cors/cors.go Refined CORS request handling by adjusting header conditions.
middleware/cors/cors_test.go Updated tests to reflect header handling changes; removed and adjusted header settings in tests.

Related issues

Poem

In the code where headers nest,
A rabbit hopped, doing its best.
With tweaks and hops, it refined,
CORS logic, now redefined.
🐰 Through tests and trials, it danced,
Ensuring no request was left to chance.
In the glow of a code-lit night,
It left the middleware feeling just right.

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Review Status

Actionable comments generated: 0

Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between 43d5091 and b686575.
Files selected for processing (2)
  • middleware/cors/cors.go (1 hunks)
  • middleware/cors/cors_test.go (13 hunks)
Additional comments: 2
middleware/cors/cors.go (1)
  • 165-171: The logic for determining if a request is outside the scope of CORS has been refined by checking the presence of the Origin header for all requests and the Access-Control-Request-Method header specifically for preflight requests. This is a crucial change that directly addresses the issue described in the PR objectives. However, it's important to ensure that this logic accurately captures all scenarios where a request should be considered outside the scope of CORS. Additionally, consider adding comments to explain the rationale behind these checks for future maintainability.
middleware/cors/cors_test.go (1)
  • 476-481: > 📝 NOTE

This review was outside the diff hunks and was mapped to the diff hunk with the greatest overlap. Original lines [466-496]

The test cases have been updated to reflect the changes in CORS request handling logic. Specifically, the tests now cover scenarios without the Origin header, preflight requests with both Origin and Access-Control-Request-Method headers, and non-preflight requests with the Origin header. These updates are essential for validating the new CORS logic. It's important to ensure comprehensive coverage, including edge cases that might not be immediately obvious. Consider adding more test cases if any scenarios are not yet covered.

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Review Status

Actionable comments generated: 0

Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between b686575 and b8e4683.
Files selected for processing (2)
  • middleware/cors/cors.go (3 hunks)
  • middleware/cors/cors_test.go (15 hunks)
Files skipped from review as they are similar to previous changes (2)
  • middleware/cors/cors.go
  • middleware/cors/cors_test.go

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Review Status

Actionable comments generated: 0

Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between b8e4683 and 8a66c4f.
Files selected for processing (1)
  • middleware/cors/cors_test.go (15 hunks)
Files skipped from review as they are similar to previous changes (1)
  • middleware/cors/cors_test.go

@ReneWerner87 ReneWerner87 merged commit e574c0d into gofiber:v2 Mar 26, 2024
19 of 20 checks passed
@sixcolors sixcolors deleted the 2936-cors-error branch March 26, 2024 21:00
@ReneWerner87 ReneWerner87 added this to the Next Release milestone Mar 27, 2024
ReneWerner87 added a commit that referenced this pull request Mar 28, 2024
* Update pull_request_template.md

* Update v3-changes.md

* Update CONTRIBUTING.md (#2752)

Grammar correction.

* chore(encryptcookie)!: update default config (#2753)

* chore(encryptcookie)!: update default config

docs(encryptcookie): enhance documentation and examples

BREAKING CHANGE: removed the hardcoded "csrf_" from the Except.

* docs(encryptcookie): reads or modifies cookies

* chore(encryptcookie): csrf config example

* docs(encryptcookie): md table spacing

* build(deps): bump actions/setup-go from 4 to 5 (#2754)

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 4 to 5.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v4...v5)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* 🩹 middleware/logger/: log client IP address by default (#2755)

* middleware/logger: Log client IP address by default.

* Update doc.

* fix: don't constrain middlewares' context-keys to strings 🐛 (#2751)

* Revert "Revert ":bug: requestid.Config.ContextKey is interface{} (#2369)" (#2742)"

This reverts commit 28be17f.

* fix: request ContextKey default value condition

Should check for `nil` since it is `any`.

* fix: don't constrain middlewares' context-keys to strings

`context` recommends using "unexported type" as context keys to avoid
collisions https://pkg.go.dev/github.com/gofiber/fiber/v2#Ctx.Locals.

The official go blog also recommends this https://go.dev/blog/context.

`fiber.Ctx.Locals(key any, value any)` correctly allows consumers to
use unexported types or e.g. strings.

But some fiber middlewares constrain their context-keys to `string` in
their "default config structs", making it impossible to use unexported
types.

This PR removes the `string` _constraint_ from all middlewares, allowing
to now use unexported types as per the official guidelines. However
the default value is still a string, so it's not a breaking change, and
anyone still using strings as context keys is not affected.

* 📚 Update app.md for indentation (#2761)

Update app.md for indentation

* build(deps): bump github.com/google/uuid from 1.4.0 to 1.5.0 (#2762)

Bumps [github.com/google/uuid](https://github.com/google/uuid) from 1.4.0 to 1.5.0.
- [Release notes](https://github.com/google/uuid/releases)
- [Changelog](https://github.com/google/uuid/blob/master/CHANGELOG.md)
- [Commits](google/uuid@v1.4.0...v1.5.0)

---
updated-dependencies:
- dependency-name: github.com/google/uuid
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump github/codeql-action from 2 to 3 (#2763)

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 2 to 3.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](github/codeql-action@v2...v3)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Changing default log output (#2730)

changing default log output

Closes #2729

* Update hooks.md

fix wrong hooks signature

* 🩹 Fix: CORS middleware should use the defined AllowedOriginsFunc config when AllowedOrigins is empty (#2771)

* 🐛 [Bug]: Adaptator + otelfiber issue #2641 (#2772)

* 🩹🚨 - fix for redirect with query params (#2748)

* redirect with query params did not work, fix it and add test for it

* redirect middleware - fix test typo

* ♻️ logger/middleware colorize logger error message #2593 (#2773)

* ✨ feat: add liveness and readiness checks (#2509)

* ✨ feat: add liveness and readiness checkers

* 📝 docs: add docs for liveness and readiness

* ✨ feat: add options method for probe checkers

* ✅ tests: add tests for liveness and readiness

* ♻️ refactor: change default endpoint values

* ♻️ refactor: change default value for liveness endpoint

* 📝 docs: add return status for liveness and readiness probes

* ♻️ refactor: change probechecker to middleware

* 📝 docs: move docs to middleware session

* ♻️ refactor: apply gofumpt formatting

* ♻️ refactor: remove unused parameter

* split config and apply a review

* apply reviews and add testcases

* add benchmark

* cleanup

* rename middleware

* fix linter

* Update docs and config values

* Revert change to IsReady

* Updates based on code review

* Update docs to match other middlewares

---------

Co-authored-by: Muhammed Efe Cetin <efectn@protonmail.com>
Co-authored-by: Juan Calderon-Perez <835733+gaby@users.noreply.github.com>
Co-authored-by: Juan Calderon-Perez <jgcalderonperez@protonmail.com>

* prepare release v2.52.0
- add more Parser tests

* fix healthcheck.md

* configure workflows for V2 branch

* configure workflows for V2 branch

* Fix default value to false in docs of QueryBool (#2811)

fix default value to false in docs of QueryBool

* update queryParser config

* Update ctx.md

* Update routing.md

* 📚 Doc: Fix code snippet indentation in /docs/api/middleware/keyauth.md

Removes an an extra level of indentation in line 51 of
`keyauth.md` [here](https://github.com/gofiber/fiber/blob/v2/docs/api/middleware/keyauth.md?plain=1#L51)

* fix: healthcheck middleware not working with route group (#2863)

* fix: healthcheck middleware not working with route group

* perf: change verification method to improve perf

* Update healthcheck_test.go

* test: add not matching route test for strict routing

* add more test cases

* correct tests

* correct test helpers

* correct tests

* correct tests

---------

Co-authored-by: Juan Calderon-Perez <835733+gaby@users.noreply.github.com>
Co-authored-by: René Werner <rene@gofiber.io>

* Merge pull request from GHSA-fmg4-x8pw-hjhg

* Enforce Wildcard Origins with AllowCredentials check

* Expand unit-tests, fix issues with subdomains logic, update docs

* Update cors.md

* Added test using localhost, ipv4, and ipv6 address

* improve documentation markdown

---------

Co-authored-by: René Werner <rene@gofiber.io>

* Update app.go

prepare release v2.52.1

* fix cors domain normalize

* fix sync-docs workflow

* fix sync-docs workflow

* fix(middleware/cors): Validation of multiple Origins (#2883)

* fix: allow origins check

Refactor CORS origin validation and normalization to trim leading or trailing whitespace in the cfg.AllowOrigins string [list]. URLs with whitespace inside the URL are invalid, so the normalizeOrigin will return false because url.Parse will fail, and the middleware will panic.

fixes #2882

* test: AllowOrigins with whitespace

* test(middleware/cors): add benchmarks

* chore: fix linter errors

* test(middleware/cors): use h() instead of app.Test()

* test(middleware/cors): add miltiple origins in Test_CORS_AllowOriginScheme

* chore: refactor validate and normalize

* test(cors/middleware): add more benchmarks

* prepare release v2.52.2

* refactor(docs): deactivate docs sync for v2

* refactor(docs): deactivate docs sync for v2

* fix(middleware/cors): Handling and wildcard subdomain matching (#2915)

* fix: allow origins check

Refactor CORS origin validation and normalization to trim leading or trailing whitespace in the cfg.AllowOrigins string [list]. URLs with whitespace inside the URL are invalid, so the normalizeOrigin will return false because url.Parse will fail, and the middleware will panic.

fixes #2882

* test: AllowOrigins with whitespace

* test(middleware/cors): add benchmarks

* chore: fix linter errors

* test(middleware/cors): use h() instead of app.Test()

* test(middleware/cors): add miltiple origins in Test_CORS_AllowOriginScheme

* chore: refactor validate and normalize

* test(cors/middleware): add more benchmarks

* fix(middleware/cors): handling and wildcard subdomain matching

docs(middleware/cors): add How it works and Security Considerations

* chore: grammar

* Apply suggestions from code review

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* chore: fix misspelling

* test(middleware/cors): combine Invalid_Origins tests

* refactor(middleware/cors): headers handling

* docs(middleware/cors): Update AllowOrigins description

* chore: merge

* perf(middleware/cors): optimize handler

* perf(middleware/cors): optimize handler

* chore(middleware/cors): ipdate origin handling logic

* chore(middleware/cors): fix header capitalization

* docs(middleware/cors): improve sercuity notes

* docs(middleware/cors): Improve security notes

* docs(middleware/cors): improve CORS overview

* docs(middleware/cors): fix ordering of how it works

* docs(middleware/cors): add additional info to How to works

* docs(middleware/cors): rm space

* docs(middleware/cors): add validation for AllowOrigins origins to overview

* docs(middleware/cors): update ExposeHeaders and MaxAge descriptions

* docs(middleware/cors): Add dynamic origin validation example

* docs(middleware/cors): Improve security notes and fix header capitalization

* docs(middleware/cors): configuration examples

* docs(middleware/cors): `"*"`

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* fix(middleware/cors): Categorize requests correctly (#2921)

* fix(middleware/cors): categorise requests correctly

* test(middleware/cors): improve test coverage for request types

* test(middleware/cors): Add subdomain matching tests

* test(middleware/cors): parallel tests for CORS headers based on request type

* test(middleware/cors): Add benchmark for CORS subdomain matching

* test(middleware/cors): cover additiona test cases

* refactor(middleware/cors): origin validation and normalization

* test(middleware/csrf): Fix Benchmark Tests (#2932)

* test(middleware/csrf): fix Benchmark_Middleware_CSRF_*

* fix(middleware/csrf): update refererMatchesHost()

* Prepare release v2.52.3

* fix(middleware/cors): CORS handling (#2937)

* fix(middleware/cors): CORS handling

* fix(middleware/cors): Vary header handling

* test(middleware/cors): Ensure Vary Headers checked

* fix(middleware/cors): Vary header handling non-cors OPTIONS requests (#2939)

* fix(middleware/cors): Vary header handling non-cors OPTIONS requests

* chore(middleware/cors): Add Vary header for non-CORS OPTIONS requests comment

* prepare release v2.52.4

* merge v2 in main(v3)

* merge v2 in main(v3)

* merge v2 in main(v3)

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: tokelo-12 <113810058+tokelo-12@users.noreply.github.com>
Co-authored-by: Jason McNeil <sixcolors@mac.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: iRedMail <2048991+iredmail@users.noreply.github.com>
Co-authored-by: Benjamin Grosse <ste3ls@gmail.com>
Co-authored-by: Mehmet Firat KOMURCU <mehmetfiratkomurcu@hotmail.com>
Co-authored-by: Bruno <bdm2943@icloud.com>
Co-authored-by: Muhammad Kholid B <muhammadkholidb@gmail.com>
Co-authored-by: gilwo <gilwo@users.noreply.github.com>
Co-authored-by: Lucas Lemos <lucashenriqueblemos@gmail.com>
Co-authored-by: Muhammed Efe Cetin <efectn@protonmail.com>
Co-authored-by: Juan Calderon-Perez <835733+gaby@users.noreply.github.com>
Co-authored-by: Juan Calderon-Perez <jgcalderonperez@protonmail.com>
Co-authored-by: Jongmin Kim <kjongmin26@gmail.com>
Co-authored-by: Giovanni Rivera <rivera.giovanni271@gmail.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
fsandel pushed a commit to stackitcloud/stackit-cert-manager-webhook that referenced this pull request Apr 4, 2024
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/gofiber/fiber/v2](https://github.com/gofiber/fiber) | require | patch | `v2.52.2` -> `v2.52.4` |

---

### Release Notes

<details>
<summary>gofiber/fiber (github.com/gofiber/fiber/v2)</summary>

### [`v2.52.4`](https://github.com/gofiber/fiber/releases/tag/v2.52.4)

[Compare Source](gofiber/fiber@v2.52.3...v2.52.4)

### 🐛 Fixes

-   Middleware/cors: CORS handling by [@&#8203;sixcolors](https://github.com/sixcolors) in gofiber/fiber#2937
-   Middleware/cors: Vary header handling non-cors OPTIONS requests by [@&#8203;sixcolors](https://github.com/sixcolors) in gofiber/fiber#2939

**Full Changelog**: gofiber/fiber@v2.52.3...v2.52.4

### [`v2.52.3`](https://github.com/gofiber/fiber/releases/tag/v2.52.3)

[Compare Source](gofiber/fiber@v2.52.2...v2.52.3)

#### 🐛 Fixes

-   Middleware/cors: Handling and wildcard subdomain matching by [@&#8203;sixcolors](https://github.com/sixcolors) in gofiber/fiber#2915
-   Middleware/cors: Categorize requests correctly by [@&#8203;sixcolors](https://github.com/sixcolors) in gofiber/fiber#2921
-   Middleware/csrf: Fix Benchmark Tests by [@&#8203;sixcolors](https://github.com/sixcolors) in gofiber/fiber#2932

**Full Changelog**: gofiber/fiber@v2.52.2...v2.52.3

</details>

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