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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"flag"
"fmt"
"io"
"log"
"net"
"net/http"
"os"
"strings"
"time"
)
var (
post = flag.String("post", "", "urlencoded form data to POST")
addr = flag.Bool("addr", false, "find open address and print to stdout")
wait = flag.Duration("wait_for_port", 0, "if non-zero, the amount of time to wait for the address to become available")
)
func main() {
flag.Parse()
if *addr {
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
log.Fatal(err)
}
defer l.Close()
fmt.Print(l.Addr())
return
}
url := flag.Arg(0)
if url == "" {
log.Fatal("no url supplied")
}
var r *http.Response
var err error
loopUntil := time.Now().Add(*wait)
for {
if *post != "" {
b := strings.NewReader(*post)
r, err = http.Post(url, "application/x-www-form-urlencoded", b)
} else {
r, err = http.Get(url)
}
if err == nil || *wait == 0 || time.Now().After(loopUntil) {
break
}
time.Sleep(100 * time.Millisecond)
}
if err != nil {
log.Fatal(err)
}
defer r.Body.Close()
_, err = io.Copy(os.Stdout, r.Body)
if err != nil {
log.Fatal(err)
}
}
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