feat: Added auth token server

issue #96

server/auth_server.go

@@ -0,0 +1,43 @@
+package server
+
+import (
+	"context"
+	"github.com/onepanelio/core/api"
+	v1 "github.com/onepanelio/core/pkg"
+	"github.com/onepanelio/core/server/auth"
+	"github.com/pkg/errors"
+)
+
+type AuthServer struct{}
+
+func NewAuthServer() *AuthServer {
+	return &AuthServer{}
+}
+
+func (a *AuthServer) IsValidToken(ctx context.Context, req *api.IsValidTokenRequest) (*api.IsValidTokenResponse, error) {
+	client := ctx.Value("kubeClient").(*v1.Client)
+
+	namespaces, err := client.ListOnepanelEnabledNamespaces()
+	if err != nil {
+		return nil, err
+	}
+	if len(namespaces) == 0 {
+		return nil, errors.New("No namespaces for onepanel setup.")
+	}
+	namespace := namespaces[0]
+
+	allowed, err := auth.IsAuthorized(client, "", "get", "", "namespaces", namespace.Name)
+	if err != nil {
+		return nil, err
+	}
+
+	if !allowed {
+		return &api.IsValidTokenResponse{
+			Valid: false,
+		}, nil
+	}
+
+	return &api.IsValidTokenResponse{
+		Valid: true,
+	}, nil
+}