mox/moxio/tlsinfo.go
Mechiel Lukkien 72ac1fde29
expose fewer internals in packages, for easier software reuse
- prometheus is now behind an interface, they aren't dependencies for the
  reusable components anymore.
- some dependencies have been inverted: instead of packages importing a main
  package to get configuration, the main package now sets configuration in
  these packages. that means fewer internals are pulled in.
- some functions now have new parameters for values that were retrieved from
  package "mox-".
2023-12-14 15:39:36 +01:00

29 lines
562 B
Go

package moxio
import (
"crypto/tls"
"fmt"
)
// TLSInfo returns human-readable strings about the TLS connection, for use in
// logging.
func TLSInfo(conn *tls.Conn) (version, ciphersuite string) {
st := conn.ConnectionState()
versions := map[uint16]string{
tls.VersionTLS10: "TLS1.0",
tls.VersionTLS11: "TLS1.1",
tls.VersionTLS12: "TLS1.2",
tls.VersionTLS13: "TLS1.3",
}
v, ok := versions[st.Version]
if ok {
version = v
} else {
version = fmt.Sprintf("TLS %x", st.Version)
}
ciphersuite = tls.CipherSuiteName(st.CipherSuite)
return
}