gistfile1.go

package main

import (
	"crypto/tls"
    "net"
    "net/http"
    "time"
    "fmt"
    "errors"
)

func redirectPolicy(req *http.Request, via []*http.Request) error {
	if len(via) >= 3 {
		return errors.New("stopped after 3 redirects")
	}
	return nil
}

func main() {
	transport := &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
		Dial: func(netw, addr string) (net.Conn, error) {
			// we want to wait a maximum of 1.75 seconds...
			// since we're specifying a 1 second connect timeout and deadline 
			// (read/write timeout) is specified in absolute time we want to 
			// calculate that time first (before connecting)
			deadline := time.Now().Add(800 * time.Millisecond)
			c, err := net.DialTimeout(netw, addr, time.Second)
			if err != nil {
				return nil, err
			}
			c.SetDeadline(deadline)
			return c, nil
		}}
	httpclient := &http.Client{Transport: transport, CheckRedirect: redirectPolicy}

    req, err := http.NewRequest("GET", "http://bukk.it/boss.gif", nil)
	req.Header.Add("User-Agent", "Bitly ImgGtr - Saving your bandwith and our time")

	resp, err := httpclient.Do(req)
	if err != nil {
		return 
	}

    start := time.Now().UnixNano()
    resp.Body.Close()
    fmt.Println("Close took: ", time.Now().UnixNano() - start)
}