Refactor

pkg/schemaserver/parse/validate.go

@@ -0,0 +1,47 @@
+package parse
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/rancher/steve/pkg/schemaserver/httperror"
+	"github.com/rancher/steve/pkg/schemaserver/types"
+	"github.com/rancher/wrangler/pkg/schemas/validation"
+)
+
+var (
+	supportedMethods = map[string]bool{
+		http.MethodPost:   true,
+		http.MethodGet:    true,
+		http.MethodPut:    true,
+		http.MethodPatch:  true,
+		http.MethodDelete: true,
+	}
+)
+
+func ValidateMethod(request *types.APIRequest) error {
+	if request.Action != "" && request.Method == http.MethodPost {
+		return nil
+	}
+
+	if !supportedMethods[request.Method] {
+		return httperror.NewAPIError(validation.MethodNotAllowed, fmt.Sprintf("Invalid method %s not supported", request.Method))
+	}
+
+	if request.Type == "" || request.Schema == nil || request.Link != "" {
+		return nil
+	}
+
+	allowed := request.Schema.ResourceMethods
+	if request.Name == "" {
+		allowed = request.Schema.CollectionMethods
+	}
+
+	for _, method := range allowed {
+		if method == request.Method {
+			return nil
+		}
+	}
+
+	return httperror.NewAPIError(validation.MethodNotAllowed, fmt.Sprintf("Method %s not supported", request.Method))
+}