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/*
macli - Unofficial CLI-Based MyAnimeList Client
Copyright © 2022 Vidhu Kant Sharma <vidhukant@vidhukant.xyz>
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 auth
import (
"context"
"net/http"
"net/url"
"html"
"encoding/json"
"os"
"fmt"
"errors"
)
func listen(clientId, verifier string) {
mux := http.NewServeMux()
server := &http.Server{Addr: ":8000", Handler: mux}
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
code, codeExists := r.URL.Query()["code"]
if codeExists {
err := getToken(clientId, verifier, code[0])
if err != nil {
fmt.Fprintf(w, "<p>An error occoured while logging in: %s</p>", html.EscapeString(err.Error()))
fmt.Println("Error while requesting an access token from MyAnimeList:", err)
} else {
fmt.Fprintf(w, "<p>Login successful! You may close this tab now.</p>")
fmt.Println("\x1b[32mYou have successfully logged into macli.\x1b[0m")
fmt.Println("\x1b[32mYou can close the web browser tab now.\x1b[0m")
}
} else {
fmt.Fprintf(w, "<p>An error occoured while logging in (invalid request)</p>")
fmt.Println("An error occoured while logging in (invalid request)")
}
go server.Shutdown(context.Background())
})
err := server.ListenAndServe()
if err != nil && err != http.ErrServerClosed {
fmt.Println("There was an error initialising the server", err.Error())
os.Exit(1)
}
}
func getToken(clientId, verifier, code string) error {
data := url.Values{
"client_id": {clientId},
"code_verifier": {verifier},
"grant_type": {"authorization_code"},
"code": {code},
}
resp, err := http.PostForm("https://myanimelist.net/v1/oauth2/token", data)
if err != nil {
return err
}
var res map[string]interface{}
json.NewDecoder(resp.Body).Decode(&res)
if res["error"] != nil {
return errors.New(fmt.Sprintf("%v (%v)", res["message"], res["error"]))
}
setToken(fmt.Sprintf("%v", res["access_token"]))
//setRefreshToken(refreshToken)
//setExpiresIn(expiresIn)
return nil
}
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