[#382] Fix request type determination

Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>

api/middleware/policy.go

@@ -215,11 +215,11 @@ func getBucketObject(r *http.Request, domains []string) (reqType ReqType, bktNam
 		return noneType, "", ""
 	}
 
-	if ind := strings.IndexByte(bktObj, '/'); ind != -1 {
+	if ind := strings.IndexByte(bktObj, '/'); ind != -1 && bktObj[ind+1:] != "" {
 		return objectType, bktObj[:ind], bktObj[ind+1:]
 	}
 
-	return bucketType, bktObj, ""
+	return bucketType, strings.TrimSuffix(bktObj, "/"), ""
 }
 
 func determineOperation(r *http.Request, reqType ReqType) (operation string) {

api/middleware/policy_test.go

@@ -0,0 +1,82 @@
+package middleware
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestReqTypeDetermination(t *testing.T) {
+	bkt, obj, domain := "test-bucket", "test-object", "domain"
+
+	for _, tc := range []struct {
+		name            string
+		target          string
+		host            string
+		domains         []string
+		expectedType    ReqType
+		expectedBktName string
+		expectedObjName string
+	}{
+		{
+			name:            "bucket request, path-style",
+			target:          "/" + bkt,
+			expectedType:    bucketType,
+			expectedBktName: bkt,
+		},
+		{
+			name:            "bucket request with slash, path-style",
+			target:          "/" + bkt + "/",
+			expectedType:    bucketType,
+			expectedBktName: bkt,
+		},
+		{
+			name:            "object request, path-style",
+			target:          "/" + bkt + "/" + obj,
+			expectedType:    objectType,
+			expectedBktName: bkt,
+			expectedObjName: obj,
+		},
+		{
+			name:            "object request with slash, path-style",
+			target:          "/" + bkt + "/" + obj + "/",
+			expectedType:    objectType,
+			expectedBktName: bkt,
+			expectedObjName: obj + "/",
+		},
+		{
+			name:         "none type request",
+			target:       "/",
+			expectedType: noneType,
+		},
+		{
+			name:            "bucket request, virtual-hosted style",
+			target:          "/",
+			host:            bkt + "." + domain,
+			domains:         []string{"some-domain", domain},
+			expectedType:    bucketType,
+			expectedBktName: bkt,
+		},
+		{
+			name:            "object request, virtual-hosted style",
+			target:          "/" + obj,
+			host:            bkt + "." + domain,
+			domains:         []string{"some-domain", domain},
+			expectedType:    objectType,
+			expectedBktName: bkt,
+			expectedObjName: obj,
+		},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			r := httptest.NewRequest(http.MethodPut, tc.target, nil)
+			r.Host = tc.host
+
+			reqType, bktName, objName := getBucketObject(r, tc.domains)
+			require.Equal(t, tc.expectedType, reqType)
+			require.Equal(t, tc.expectedBktName, bktName)
+			require.Equal(t, tc.expectedObjName, objName)
+		})
+	}
+}