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package main | |
import ( | |
"fmt" | |
"io" | |
"log" | |
"os" | |
"os/exec" | |
"regexp" | |
"strings" | |
"sync" | |
"time" | |
) | |
const cf string = `https://.+trycloudflare.com` | |
var link = "" | |
var wg sync.WaitGroup | |
func GetLink(w io.Writer, r io.Reader) { | |
defer wg.Done() | |
var wait = false | |
defer wg.Done() | |
match := regexp.MustCompile(cf) | |
var out []byte | |
buf := make([]byte, 1024, 1024) | |
for { | |
n, err := r.Read(buf[:]) | |
if n > 0 { | |
d := buf[:n] | |
out = append(out, d...) | |
_, err := w.Write(d) | |
if err != nil { | |
return | |
} | |
} | |
if wait == false { | |
lines := strings.Split(string(out), "\n") | |
for _, s := range lines { | |
matches := match.FindAllString(s, -1) | |
for _, f := range matches { | |
if len(f) > 20 { | |
link = f | |
if match.MatchString(f) { | |
wait = true | |
} | |
} | |
} | |
} | |
} | |
if err != nil { | |
if err == io.EOF { | |
err = nil | |
} | |
} | |
} | |
} | |
func CF(cmd *exec.Cmd) { | |
stdoutIn, _ := cmd.StdoutPipe() | |
stderrIn, _ := cmd.StderrPipe() | |
err := cmd.Start() | |
if err != nil { | |
log.Fatalf("cmd.Start() failed with '%s'\n", err) | |
} | |
wg.Add(1) | |
go GetLink(os.Stdout, stdoutIn) | |
wg.Add(1) | |
go GetLink(os.Stderr, stderrIn) | |
} | |
func main() { | |
cmd := exec.Command("cloudflared", "tunnel", "--url", "localhost:9999", "--no-autoupdate") | |
go CF(cmd) | |
for len(link) == 0 { | |
time.Sleep(time.Second) | |
} | |
for { | |
time.Sleep(time.Second) | |
fmt.Println(link) | |
} | |
} |
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Wait for the link to get generated and use the variable
link
as needed