在Golang中获取远程SSL证书

Question

I want to receive a TCP connection over TLS. I want to validate client certificate and use it to authenticate the client to my application. Go has the standard crypto/tls package. It can validate client/server certificates. But I can't find way to get details of the remote (client) certificate, like the common name.

Answer 1

Have to call crypto/tls/Conn.Handshake. Then you can read peer certificate: tlsconn.ConnectionState().PeerCertificates[0].Subject.CommonName