| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package certclient |
| |
| import ( |
| "crypto/tls" |
| "fmt" |
| "path/filepath" |
| "strings" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-kubernetes/pkg/bufman/pkg/app/appname" |
| ) |
| |
| // ExternalClientTLSConfig allows users to configure TLS on the client side. |
| type ExternalClientTLSConfig struct { |
| Use string `json:"use,omitempty" yaml:"use,omitempty"` |
| RootCertFilePaths []string `json:"root_cert_file_paths,omitempty" yaml:"root_cert_file_paths,omitempty"` |
| } |
| |
| // IsEmpty returns true if the ExternalClientTLSConfig is empty. |
| func (e ExternalClientTLSConfig) IsEmpty() bool { |
| return e.Use == "" && len(e.RootCertFilePaths) == 0 |
| } |
| |
| // NewClientTLSConfig creates a new *tls.Config from the ExternalTLSConfig |
| // |
| // The default is to use the system TLS config. |
| func NewClientTLSConfig( |
| container appname.Container, |
| externalClientTLSConfig ExternalClientTLSConfig, |
| ) (*tls.Config, error) { |
| switch t := strings.ToLower(strings.TrimSpace(externalClientTLSConfig.Use)); t { |
| case "local": |
| rootCertFilePaths := externalClientTLSConfig.RootCertFilePaths |
| if len(rootCertFilePaths) == 0 { |
| rootCertFilePaths = []string{ |
| filepath.Join( |
| container.ConfigDirPath(), |
| "tls", |
| "root.pem", |
| ), |
| } |
| } |
| return NewClientTLSConfigFromRootCertFiles(rootCertFilePaths...) |
| case "", "system": |
| return newClientSystemTLSConfig(), nil |
| case "false": |
| return nil, nil |
| default: |
| return nil, fmt.Errorf("unknown tls.use: %q", t) |
| } |
| } |