52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
package main
|
|
|
|
import (
|
|
"net"
|
|
"fmt"
|
|
"time"
|
|
)
|
|
|
|
const MAGIC = "\x00\xff\xff\x00\xfe\xfe\xfe\xfe\xfd\xfd\xfd\xfd\x12\x34\x56\x78"
|
|
|
|
func isAlive() bool {
|
|
conn, err := net.Dial("udp", "h.woozle.org:30919")
|
|
if err != nil {
|
|
return false
|
|
}
|
|
|
|
conn.SetReadDeadline(time.Now().Add(5 * time.Second))
|
|
|
|
pkt := "\x01" + "\x00\x00\x00\x00MERF" + MAGIC
|
|
conn.Write([]byte(pkt))
|
|
|
|
resp := make([]byte, 40)
|
|
rlen, err := conn.Read(resp)
|
|
if (err != nil) || (rlen == 0) {
|
|
return false
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
func main() {
|
|
fmt.Println("Content-type: text/html")
|
|
fmt.Println("")
|
|
fmt.Println("<!DOCTYPE html>")
|
|
fmt.Println("<html>")
|
|
fmt.Println("<head>")
|
|
fmt.Println("<meta name=\"viewport\" content=\"width=device-width\">")
|
|
fmt.Println("<style type=\"text/css\">#a{font-size: 500%; text-align: center; background: silver;}</style>")
|
|
fmt.Println("<title>Is Ginnie playing Minecraft PE?</title></head>")
|
|
fmt.Println("<body>")
|
|
fmt.Println("<h1>Is Ginnie playing Minecraft PE?</h1>")
|
|
fmt.Println("<p id=\"a\">")
|
|
if isAlive() {
|
|
fmt.Println("yes")
|
|
} else {
|
|
fmt.Println("no")
|
|
}
|
|
fmt.Println("</p>")
|
|
fmt.Println("<p>Use the external server <code>h.woozle.org</code> port <code>30919</code> to connect</p>")
|
|
fmt.Println("</body></html>")
|
|
}
|