Created
March 21, 2013 10:56
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Simple TSL server in go
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package main; | |
import ("log"; "os"; "net"; "bufio";"crypto/tls";"crypto/x509") | |
var caPool *x509.CertPool; | |
var tlsConf tls.Config; | |
func connLoop(conn net.Conn) { | |
sconn := tls.Server(conn, &tlsConf); | |
err := sconn.Handshake(); | |
if(err != nil) { | |
log.Printf("ssl failed %s", err); | |
conn.Close(); | |
return; | |
} | |
state := sconn.ConnectionState() | |
log.Printf("connected CN: %s", state.PeerCertificates[0].Subject.CommonName) | |
reader := bufio.NewReader(sconn) | |
for { | |
line, isPrefix, err := reader.ReadLine() | |
if(err != nil) { | |
log.Printf("read error"); | |
break; | |
} | |
log.Printf("line[%d]: %s", isPrefix, line); | |
} | |
conn.Close(); | |
} | |
func load_ca() { | |
file, err := os.Open("cert/ca.cert") | |
data := make([]byte, 2048) | |
_, err = file.Read(data) | |
if(err != nil) { | |
log.Panic("cannot read CA") | |
return; | |
} | |
caPool = x509.NewCertPool() | |
caOk := caPool.AppendCertsFromPEM(data) | |
if(!caOk) { | |
log.Panic("cannot append CA to pool") | |
} | |
} | |
func load_cert() { | |
cert, err := tls.LoadX509KeyPair("cert/cert.pem", "cert/key.pem") | |
if(err != nil) { | |
log.Printf("failed to read cert"); | |
return; | |
} | |
tlsConf = tls.Config{ServerName: "texr", | |
Certificates: []tls.Certificate{cert}, | |
ClientAuth:tls.RequireAndVerifyClientCert, | |
ClientCAs: caPool, | |
} | |
} | |
func main() { | |
log.Printf("hello go!"); | |
load_ca(); | |
load_cert(); | |
ln, err := net.Listen("tcp", ":5061") | |
if(err != nil) { | |
log.Fatal("listen failed") | |
} | |
for { | |
conn, err := ln.Accept() | |
if(err != nil) { | |
log.Print("failed to accept"); | |
continue; | |
} | |
go connLoop(conn) | |
} | |
} |
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