mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
4a5e9d1261
26 git mv mvcc wal auth etcdserver etcdmain proxy embed/ lease/ server 36 git mv go.mod go.sum server
76 lines
2.3 KiB
Go
76 lines
2.3 KiB
Go
// Copyright 2017 The etcd Authors
|
|
//
|
|
// Licensed 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 grpcproxy
|
|
|
|
import (
|
|
"context"
|
|
|
|
"go.etcd.io/etcd/api/v3/v3rpc/rpctypes"
|
|
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/metadata"
|
|
)
|
|
|
|
func getAuthTokenFromClient(ctx context.Context) string {
|
|
md, ok := metadata.FromIncomingContext(ctx)
|
|
if ok {
|
|
ts, ok := md[rpctypes.TokenFieldNameGRPC]
|
|
if ok {
|
|
return ts[0]
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func withClientAuthToken(ctx, ctxWithToken context.Context) context.Context {
|
|
token := getAuthTokenFromClient(ctxWithToken)
|
|
if token != "" {
|
|
ctx = context.WithValue(ctx, rpctypes.TokenFieldNameGRPC, token)
|
|
}
|
|
return ctx
|
|
}
|
|
|
|
type proxyTokenCredential struct {
|
|
token string
|
|
}
|
|
|
|
func (cred *proxyTokenCredential) RequireTransportSecurity() bool {
|
|
return false
|
|
}
|
|
|
|
func (cred *proxyTokenCredential) GetRequestMetadata(ctx context.Context, s ...string) (map[string]string, error) {
|
|
return map[string]string{
|
|
rpctypes.TokenFieldNameGRPC: cred.token,
|
|
}, nil
|
|
}
|
|
|
|
func AuthUnaryClientInterceptor(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
|
|
token := getAuthTokenFromClient(ctx)
|
|
if token != "" {
|
|
tokenCred := &proxyTokenCredential{token}
|
|
opts = append(opts, grpc.PerRPCCredentials(tokenCred))
|
|
}
|
|
return invoker(ctx, method, req, reply, cc, opts...)
|
|
}
|
|
|
|
func AuthStreamClientInterceptor(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
|
|
tokenif := ctx.Value(rpctypes.TokenFieldNameGRPC)
|
|
if tokenif != nil {
|
|
tokenCred := &proxyTokenCredential{tokenif.(string)}
|
|
opts = append(opts, grpc.PerRPCCredentials(tokenCred))
|
|
}
|
|
return streamer(ctx, desc, cc, method, opts...)
|
|
}
|