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Is Ginnie playing Minecraft?

This commit is contained in:
Neale Pickett 2013-12-31 00:35:21 +00:00
parent c7c4d333dc
commit 6856c5dcaa
2 changed files with 55 additions and 0 deletions
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4
Makefile
View File

@ -21,6 +21,7 @@ PLAIN = . papers poems misc
TARGETS = html copy
TARGETS += $(DESTDIR)/tmp $(DESTDIR)/footer.html $(DESTDIR)/projects
TARGETS += $(DESTDIR)/geneweb.cgi
TARGETS += $(DESTDIR)/mp.cgi
all: default
@ -50,6 +51,9 @@ $(DESTDIR)/geneweb.cgi: geneweb.c
$(DESTDIR)/g.cgi: g.cgi.c
$(CC) -o $@ $<
$(DESTDIR)/mp.cgi: mineping.cgi.go
go build -o $@ $<
$(DESTDIR)/%-sm.jpg: %.jpg
jpegtopnm $< | pnmscale -xysize 600 600 | pnmtojpeg > $@

51
mineping.cgi.go Normal file
View File

@ -0,0 +1,51 @@
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>")
}