1/* 2 * 3 * Copyright 2020 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19// Package insecure provides an implementation of the 20// credentials.TransportCredentials interface which disables transport security. 21// 22// Experimental 23// 24// Notice: This package is EXPERIMENTAL and may be changed or removed in a 25// later release. 26package insecure 27 28import ( 29 "context" 30 "net" 31 32 "google.golang.org/grpc/credentials" 33) 34 35// NewCredentials returns a credentials which disables transport security. 36func NewCredentials() credentials.TransportCredentials { 37 return insecureTC{} 38} 39 40// insecureTC implements the insecure transport credentials. The handshake 41// methods simply return the passed in net.Conn and set the security level to 42// NoSecurity. 43type insecureTC struct{} 44 45func (insecureTC) ClientHandshake(ctx context.Context, _ string, conn net.Conn) (net.Conn, credentials.AuthInfo, error) { 46 return conn, info{credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity}}, nil 47} 48 49func (insecureTC) ServerHandshake(conn net.Conn) (net.Conn, credentials.AuthInfo, error) { 50 return conn, info{credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity}}, nil 51} 52 53func (insecureTC) Info() credentials.ProtocolInfo { 54 return credentials.ProtocolInfo{SecurityProtocol: "insecure"} 55} 56 57func (insecureTC) Clone() credentials.TransportCredentials { 58 return insecureTC{} 59} 60 61func (insecureTC) OverrideServerName(string) error { 62 return nil 63} 64 65// info contains the auth information for an insecure connection. 66// It implements the AuthInfo interface. 67type info struct { 68 credentials.CommonAuthInfo 69} 70 71// AuthType returns the type of info as a string. 72func (info) AuthType() string { 73 return "insecure" 74} 75