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/*
maltoken-cli - MyAnimeList auth token generator
Copyright © 2023 Vidhu Kant Sharma <vidhukant@vidhukant.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package main
import (
"bufio"
"errors"
"flag"
"fmt"
"os"
"os/exec"
"runtime"
"strings"
mt "vidhukant.com/maltoken"
)
const VERSION = "v1.0.0"
var (
cid string
port int
launch bool
)
var HTMLTemplate = `
<html>
<head>
<title>maltoken-cli</title>
</head>
<body>
<style>
body {
background-color: #232627;
display: flex;
flex-direction: column;
justify-content: center;
gap: 0.5rem;
align-items: center;
min-height: 100vh;
}
#heading, #subheading, #description {
text-align: center;
margin: 0;
}
#heading {
color: #C678DD;
font-size: 2.2em;
}
#subheading {
color: #dfdfdf;
font-size: 1.2em;
}
#description {
color: lightgray;
font-size: 0.9em;
}
</style>
<p id="heading">%s</p>
<p id="subheading">%s</p>
<p id="description">maltoken-cli version ` + VERSION + `</p>
</body>
</html>
`
func main() {
if strings.TrimSpace(cid) == "" {
scanner := bufio.NewScanner(os.Stdin)
fmt.Printf("Enter your Client ID: ")
scanner.Scan()
if scanner.Err() != nil {
fmt.Printf("\x1b[1;31mAn error occoured while reading Client ID:\x1b[0m %s\n", scanner.Err().Error())
}
if strings.TrimSpace(scanner.Text()) == "" {
fmt.Println("\x1b[1;31mInvalid Client ID.\x1b[0m")
os.Exit(1)
}
cid = scanner.Text()
}
challenge, link := mt.GetChallengeLink(cid)
fmt.Printf("Authorization URL: \x1b[36m%s\x1b[0m\n", link)
if launch {
fmt.Println("Attempting to launch the browser...")
var err error
switch runtime.GOOS {
case "linux":
err = exec.Command("xdg-open", link).Start()
case "windows":
err = exec.Command("rundll32", "url.dll,FileProtocolHandler", link).Start()
case "darwin":
err = exec.Command("open", link).Start()
default:
err = errors.New("Failed to detect platform.")
}
if err != nil {
fmt.Printf("\x1b[1;31mFailed to launch the browser due to the following error:\x1b[0m %s\n", err.Error())
fmt.Println("Please manually copy and paste the link.")
}
}
res, err := mt.Listen(cid, challenge, port)
if err != nil {
fmt.Printf("\x1b[1;31mAn error occoured:\x1b[0m %s\nExiting...\n", err.Error())
os.Exit(1)
}
fmt.Printf("\x1b[1;33mToken Type:\x1b[0m %v\n", res["token_type"])
fmt.Printf("\x1b[1;33mExpires In:\x1b[0m %v\n", res["expires_in"])
fmt.Printf("\x1b[1;33mAccess Token:\x1b[0m \x1b[36m%v\x1b[0m\n", res["access_token"])
fmt.Printf("\x1b[1;33mRefresh Token:\x1b[0m \x1b[36m%v\x1b[0m\n", res["refresh_token"])
}
func version(_ string) error {
fmt.Printf("maltoken-cli version %s %s/%s\n", VERSION, runtime.GOOS, runtime.GOARCH)
os.Exit(0)
return nil
}
func help(_ string) error {
fmt.Println("maltoken-cli: MyAnimeList auth token generator")
fmt.Println("\n\x1b[34mmaltoken-cli Copyright (C) 2023 Vidhu Kant Sharma <vidhukant@vidhukant.com>\n" +
"This program comes with ABSOLUTELY NO WARRANTY;\n" +
"This is free software, and you are welcome to redistribute it\n" +
"under certain conditions; For details refer to the GNU General Public License.\n" +
"You should have received a copy of the GNU General Public License\n" +
"along with this program. If not, see <\x1b[36mhttps://www.gnu.org/licenses/\x1b[34m>.\x1b[0m\n",
)
fmt.Println("Usage:")
fmt.Println(" maltoken-cli [flags]")
fmt.Println("Flags:")
fmt.Println(" --client-id \t Specify the Client ID")
fmt.Println(" --port \t Specify the port to run the server on (default 8080)")
fmt.Println(" --launch \t Launch authorization page in the browser automatically (might not work on some systems)")
fmt.Println(" -v, --version\t Print version number")
fmt.Println(" -h, --help \t Show this message")
fmt.Println("\nCheck out maltoken <\x1b[36mhttps://mikunonaka.net/maltoken/about\x1b[0m> to embed this functionality in your go project.")
os.Exit(0)
return nil
}
func init() {
flag.Usage = func() {
help("")
}
flag.IntVar(&port, "port", 8080, "Specify the port to run the server on")
flag.StringVar(&cid, "client-id", "", "Specify the Client ID")
flag.BoolVar(&launch, "launch", false, "Launch authorization page in the browser automatically (might not work on some systems)")
flag.BoolFunc("version", "Print the version number", version)
flag.BoolFunc("v", "Print the version number", version)
flag.Parse()
mt.SuccessHTML = fmt.Sprintf(HTMLTemplate, "Yay! Authorization Successful.", "You may close this tab now.")
mt.BadRequestHTML = fmt.Sprintf(HTMLTemplate, "Invalid request.", "Required query parameters are missing.")
mt.ErrHTML = fmt.Sprintf(HTMLTemplate, "An error occoured.", "%s")
}
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