openssl genrsa -out server.key 2048
openssl req -new -x509 -key server.key -out server.pem -days 3650
package main
import (
"io"
"net/http"
"log"
)
func HelloServer(w http.ResponseWriter, req *http.Request) {
io.WriteString(w, "hello, world!\n")
}
func main() {
http.HandleFunc("/hello", HelloServer)
err := http.ListenAndServeTLS(":443", "cert.pem", "key.pem", nil)
if err != nil {
log.Fatal("ListenAndServe: ", err)
}
}Hint: visit, please do not forget to use https begins,otherwise chrome will download a file as follows:
dotcoo-air:tls dotcoo$ cat /Users/dotcoo/Downloads/hello | xxd
0000000: 1503 0100 0202 0a .......package main
import (
"log"
"crypto/tls"
"net"
"bufio"
)
func main() {
log.SetFlags(log.Lshortfile)
cer, err := tls.LoadX509KeyPair("server.pem", "server.key")
if err != nil {
log.Println(err)
return
}
config := &tls.Config{Certificates: []tls.Certificate{cer}}
ln, err := tls.Listen("tcp", ":443", config)
if err != nil {
log.Println(err)
return
}
defer ln.Close()
for {
conn, err := ln.Accept()
if err != nil {
log.Println(err)
continue
}
go handleConnection(conn)
}
}
func handleConnection(conn net.Conn) {
defer conn.Close()
r := bufio.NewReader(conn)
for {
msg, err := r.ReadString('\n')
if err != nil {
log.Println(err)
return
}
println(msg)
n, err := conn.Write([]byte("world\n"))
if err != nil {
log.Println(n, err)
return
}
}
}package main
import (
"log"
"crypto/tls"
)
func main() {
log.SetFlags(log.Lshortfile)
conf := &tls.Config{
InsecureSkipVerify: true,
}
conn, err := tls.Dial("tcp", "127.0.0.1:8000", conf)
if err != nil {
log.Println(err)
return
}
defer conn.Close()
n, err := conn.Write([]byte("hello\n"))
if err != nil {
log.Println(n, err)
return
}
buf := make([]byte, 100)
n, err = conn.Read(buf)
if err != nil {
log.Println(n, err)
return
}
println(string(buf[:n]))
}