sync from project

middleware/recover/recover.go

@@ -42,3 +42,20 @@ func DebugPanicHandler(w http.ResponseWriter, r *http.Request, err any) {
 func Debug() middleware.Middleware {
 	return Recover(DebugPanicHandler)
 }
+
+// ProductionPanicHandler is a PanicResponseFunc that provides a generic error message
+// in production environments and logs the detailed panic error.
+func ProductionPanicHandler(w http.ResponseWriter, r *http.Request, err any) {
+	httplog.Logger(r).With("panic", err).Error("request panicked")
+
+	w.WriteHeader(http.StatusInternalServerError)
+	json.NewEncoder(w).Encode(map[string]any{
+		"error": "Internal Server Error",
+	})
+}
+
+// Production returns a middleware that recovers from panics and handles them
+// with ProductionPanicHandler.
+func Production() middleware.Middleware {
+	return Recover(ProductionPanicHandler)
+}

middleware/recover/recover_test.go

@@ -0,0 +1,56 @@
+package recover
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func panicHandler(w http.ResponseWriter, r *http.Request) {
+	panic("test panic")
+}
+
+func TestDebugRecover(t *testing.T) {
+	handler := http.HandlerFunc(panicHandler)
+	wrappedHandler := Debug().WrapHandler(handler)
+
+	req := httptest.NewRequest("GET", "/panic", nil)
+	rr := httptest.NewRecorder()
+	wrappedHandler.ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusInternalServerError {
+		t.Errorf("expected status %d, got %d", http.StatusInternalServerError, rr.Code)
+	}
+
+	var resp map[string]any
+	if err := json.Unmarshal(rr.Body.Bytes(), &resp); err != nil {
+		t.Fatalf("failed to unmarshal response body: %v", err)
+	}
+
+	if resp["error"] != "test panic" {
+		t.Errorf("expected error 'test panic', got '%v'", resp["error"])
+	}
+}
+
+func TestProductionRecover(t *testing.T) {
+	handler := http.HandlerFunc(panicHandler)
+	wrappedHandler := Production().WrapHandler(handler)
+
+	req := httptest.NewRequest("GET", "/panic", nil)
+	rr := httptest.NewRecorder()
+	wrappedHandler.ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusInternalServerError {
+		t.Errorf("expected status %d, got %d", http.StatusInternalServerError, rr.Code)
+	}
+
+	var resp map[string]any
+	if err := json.Unmarshal(rr.Body.Bytes(), &resp); err != nil {
+		t.Fatalf("failed to unmarshal response body: %v", err)
+	}
+
+	if resp["error"] != "Internal Server Error" {
+		t.Errorf("expected error 'Internal Server Error', got '%v'", resp["error"])
+	}
+}