gtsocial-umbx

Unnamed repository; edit this file 'description' to name the repository.
Log | Files | Refs | README | LICENSE

insecure.go (3166B)

      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 package insecure
     22 
     23 import (
     24 	"context"
     25 	"net"
     26 
     27 	"google.golang.org/grpc/credentials"
     28 )
     29 
     30 // NewCredentials returns a credentials which disables transport security.
     31 //
     32 // Note that using this credentials with per-RPC credentials which require
     33 // transport security is incompatible and will cause grpc.Dial() to fail.
     34 func NewCredentials() credentials.TransportCredentials {
     35 	return insecureTC{}
     36 }
     37 
     38 // insecureTC implements the insecure transport credentials. The handshake
     39 // methods simply return the passed in net.Conn and set the security level to
     40 // NoSecurity.
     41 type insecureTC struct{}
     42 
     43 func (insecureTC) ClientHandshake(ctx context.Context, _ string, conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
     44 	return conn, info{credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity}}, nil
     45 }
     46 
     47 func (insecureTC) ServerHandshake(conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
     48 	return conn, info{credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity}}, nil
     49 }
     50 
     51 func (insecureTC) Info() credentials.ProtocolInfo {
     52 	return credentials.ProtocolInfo{SecurityProtocol: "insecure"}
     53 }
     54 
     55 func (insecureTC) Clone() credentials.TransportCredentials {
     56 	return insecureTC{}
     57 }
     58 
     59 func (insecureTC) OverrideServerName(string) error {
     60 	return nil
     61 }
     62 
     63 // info contains the auth information for an insecure connection.
     64 // It implements the AuthInfo interface.
     65 type info struct {
     66 	credentials.CommonAuthInfo
     67 }
     68 
     69 // AuthType returns the type of info as a string.
     70 func (info) AuthType() string {
     71 	return "insecure"
     72 }
     73 
     74 // insecureBundle implements an insecure bundle.
     75 // An insecure bundle provides a thin wrapper around insecureTC to support
     76 // the credentials.Bundle interface.
     77 type insecureBundle struct{}
     78 
     79 // NewBundle returns a bundle with disabled transport security and no per rpc credential.
     80 func NewBundle() credentials.Bundle {
     81 	return insecureBundle{}
     82 }
     83 
     84 // NewWithMode returns a new insecure Bundle. The mode is ignored.
     85 func (insecureBundle) NewWithMode(string) (credentials.Bundle, error) {
     86 	return insecureBundle{}, nil
     87 }
     88 
     89 // PerRPCCredentials returns an nil implementation as insecure
     90 // bundle does not support a per rpc credential.
     91 func (insecureBundle) PerRPCCredentials() credentials.PerRPCCredentials {
     92 	return nil
     93 }
     94 
     95 // TransportCredentials returns the underlying insecure transport credential.
     96 func (insecureBundle) TransportCredentials() credentials.TransportCredentials {
     97 	return NewCredentials()
     98 }