fix requestinfo bug (#1980)

pkg/apiserver/request/requestinfo.go

@@ -8,6 +8,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/klog"
+	"kubesphere.io/kubesphere/pkg/api"
 	"net/http"
 	"strings"
 
@@ -88,6 +89,8 @@ func (r *RequestInfoFactory) NewRequestInfo(req *http.Request) (*RequestInfo, er
 			Path: req.URL.Path,
 			Verb: req.Method,
 		},
+		Workspace: api.WorkspaceNone,
+		Cluster:   api.ClusterNone,
 	}
 
 	defer func() {
@@ -123,16 +126,6 @@ func (r *RequestInfoFactory) NewRequestInfo(req *http.Request) (*RequestInfo, er
 	requestInfo.APIVersion = currentParts[0]
 	currentParts = currentParts[1:]
 
-	if currentParts[0] == "clusters" {
-		requestInfo.Cluster = currentParts[1]
-		currentParts = currentParts[2:]
-	}
-
-	if currentParts[0] == "workspaces" {
-		requestInfo.Workspace = currentParts[1]
-		currentParts = currentParts[2:]
-	}
-
 	if specialVerbs.Has(currentParts[0]) {
 		if len(currentParts) < 2 {
 			return &requestInfo, fmt.Errorf("unable to determine kind and namespace from url: %v", req.URL)
@@ -157,6 +150,26 @@ func (r *RequestInfoFactory) NewRequestInfo(req *http.Request) (*RequestInfo, er
 		}
 	}
 
+	// URL forms: /clusters/{cluster}/*
+	if currentParts[0] == "clusters" {
+		if len(currentParts) > 1 {
+			requestInfo.Cluster = currentParts[1]
+		}
+		if len(currentParts) > 2 {
+			currentParts = currentParts[2:]
+		}
+	}
+
+	// URL forms: /workspaces/{workspace}/*
+	if currentParts[0] == "workspaces" {
+		if len(currentParts) > 1 {
+			requestInfo.Workspace = currentParts[1]
+		}
+		if len(currentParts) > 2 {
+			currentParts = currentParts[2:]
+		}
+	}
+
 	// URL forms: /namespaces/{namespace}/{kind}/*, where parts are adjusted to be relative to kind
 	if currentParts[0] == "namespaces" {
 		if len(currentParts) > 1 {