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fix(middleware/session): mutex for thread safety #3050

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merged 6 commits into from
Jun 30, 2024
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sixcolors
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This pull request adds a mutex to the session middleware to ensure thread safety when accessing session data. The mutex is used to protect non-data fields and prevent race conditions. This improves the reliability and stability of the session middleware.

@sixcolors sixcolors requested a review from a team as a code owner June 29, 2024 16:42
@sixcolors sixcolors requested review from gaby, ReneWerner87 and efectn and removed request for a team June 29, 2024 16:42
@sixcolors sixcolors changed the base branch from main to v2 June 29, 2024 16:42
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coderabbitai bot commented Jun 29, 2024

Walkthrough

These changes focus on refactoring and optimizing the session management in the middleware/session package. The decodeSessionData function was moved from store.go to session.go to consolidate session-related functionalities. Additionally, new tests and benchmarks were added to ensure the robustness and performance of session concurrency handling.

Changes

File/Path Summary
.../session/session.go Added decodeSessionData function for decoding session data.
.../session/store.go Removed decodeSessionData function from store.go to improve code organization.
.../session/session_test.go Added imports for errors and sync, and included new benchmark and concurrency tests.

Poem

A rabbit hops with code in sight,
Moving functions left to right,
Sessions dance and dreams take flight,
Benchmarks sparkle in the night.
Concurrency tests ensure things stay tight,
For every byte is now just right! 🌟🐇


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Actionable comments posted: 0

Outside diff range and nitpick comments (1)
middleware/session/session_test.go (1)

Line range hint 536-536: Remove unused variable.

The variable originalSessionUUIDString is assigned but never used.

-		originalSessionUUIDString := ""

Also applies to: 602-602

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 6fa0e7c and e610a69.

Files selected for processing (3)
  • middleware/session/session.go (1 hunks)
  • middleware/session/session_test.go (2 hunks)
  • middleware/session/store.go (1 hunks)
Additional context used
golangci-lint
middleware/session/session_test.go

536-536: assigned to originalSessionUUIDString, but reassigned without using the value

(wastedassign)


602-602: assigned to originalSessionUUIDString, but reassigned without using the value

(wastedassign)

Additional comments not posted (3)
middleware/session/session.go (1)

280-288: Refactor error handling for better readability.

The error check can be simplified for better readability.

-	if err := encCache.Decode(&s.data.Data); err != nil {
-		return fmt.Errorf("failed to decode session data: %w", err)
-	}
+	if err := encCache.Decode(&s.data.Data); err != nil {
+		return fmt.Errorf("failed to decode session data: %w", err)
+	}
	return nil

Likely invalid or redundant comment.

middleware/session/session_test.go (2)

4-5: LGTM!


680-719: Add assertions in the parallel benchmark.

Consider adding assertions to validate the benchmark results.

-	b.Run("default", func(b *testing.B) {
+	b.Run("default_asserted", func(b *testing.B) {

Likely invalid or redundant comment.

@ReneWerner87 ReneWerner87 added this to the Next Release milestone Jun 29, 2024
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@sixcolors i don't see any mutex adjustments?

@sixcolors
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sixcolors commented Jun 29, 2024

@sixcolors i don't see any mutex adjustments?

It seems I messed up the merge, give me a couple of minutes to fix the PR.

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Actionable comments posted: 1

Outside diff range and nitpick comments (2)
middleware/session/session_test.go (2)

Line range hint 536-536: Remove the wasted assignment.

The assignment to originalSessionUUIDString before reassignment is unnecessary and can be removed.

-		originalSessionUUIDString := ""

Line range hint 602-602: Remove the wasted assignment.

The assignment to originalSessionUUIDString before reassignment is unnecessary and can be removed.

-		originalSessionUUIDString := ""
Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between e610a69 and 8c0a150.

Files selected for processing (3)
  • middleware/session/session.go (10 hunks)
  • middleware/session/session_test.go (2 hunks)
  • middleware/session/store.go (3 hunks)
Files skipped from review as they are similar to previous changes (2)
  • middleware/session/session.go
  • middleware/session/store.go
Additional context used
golangci-lint
middleware/session/session_test.go

536-536: assigned to originalSessionUUIDString, but reassigned without using the value

(wastedassign)


602-602: assigned to originalSessionUUIDString, but reassigned without using the value

(wastedassign)

Additional comments not posted (3)
middleware/session/session_test.go (3)

4-5: LGTM!

The imports for errors and sync are necessary for the new concurrency tests.


760-799: LGTM!

The Benchmark_Session_Asserted_Parallel function includes necessary assertions and sets up parallel benchmarks correctly.


801-904: LGTM!

The Test_Session_Concurrency function sets up concurrent goroutines to test session operations and includes necessary error handling and assertions.

middleware/session/session_test.go Show resolved Hide resolved
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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 8c0a150 and 18b1e6f.

Files selected for processing (1)
  • middleware/session/store.go (4 hunks)
Files skipped from review as they are similar to previous changes (1)
  • middleware/session/store.go

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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 18b1e6f and a814123.

Files selected for processing (1)
  • middleware/session/session.go (10 hunks)
Files skipped from review as they are similar to previous changes (1)
  • middleware/session/session.go

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@ReneWerner87 ready

@ReneWerner87 ReneWerner87 merged commit 66a8814 into v2 Jun 30, 2024
20 checks passed
@efectn efectn deleted the session-mutex-v2 branch September 1, 2024 11:39
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3 participants