doujiang1001
2017-11-09 06:58
浏览 94
已采纳

在Go gRPC处理程序中从客户端证书获取主题DN

I'm using Golang gRPC with mutual tls. Is it possible to get client's certificate subject DN from rpc method?

// ...
func main() {
    // ...
    creds := credentials.NewTLS(&tls.Config{
        ClientAuth:   tls.RequireAndVerifyClientCert,
        Certificates: []tls.Certificate{certificate},
        ClientCAs:    certPool,
        MinVersion:   tsl.VersionTLS12,
    })
    s := NewMyService()
    gs := grpc.NewServer(grpc.Creds(creds))
    RegisterGRPCZmqProxyServer(gs, s)
    er := gs.Serve(lis)
    // ...
}

// ...
func (s *myService) Foo(ctx context.Context, req *FooRequest) (*FooResonse, error) {
    $dn := // What should be here?
    // ...
}

Is it possible?

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1条回答 默认 最新

  • duanmanpi9358 2017-11-15 12:25
    已采纳

    You can use peer.Peer from ctx context.Context for access to the OID registry in x509.Certificate.

    func (s *myService) Foo(ctx context.Context, req *FooRequest) (*FooResonse, error) {
        p, ok := peer.FromContext(ctx)
            if ok {
                tlsInfo := p.AuthInfo.(credentials.TLSInfo)
                subject := tlsInfo.State.VerifiedChains[0][0].Subject
                // do something ...
            }
    }
    

    Subject it is pkix.Name and in docs write:

    Name represents an X.509 distinguished name

    And I used code from this answer and it well work.

    已采纳该答案
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