diff -r 8f478162d991 -r 05c40b36d3b2 vendor/github.com/McKael/madon/v2/login.go
--- a/vendor/github.com/McKael/madon/v2/login.go	Thu Sep 22 16:37:07 2022 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,129 +0,0 @@
-/*
-Copyright 2017-2018 Mikael Berthe
-
-Licensed under the MIT license.  Please see the LICENSE file is this directory.
-*/
-
-package madon
-
-import (
-	"encoding/json"
-	"strings"
-
-	"golang.org/x/net/context"
-	"golang.org/x/oauth2"
-
-	"github.com/pkg/errors"
-	"github.com/sendgrid/rest"
-)
-
-const oAuthRelPath = "/oauth/"
-
-// UserToken represents a user token as returned by the Mastodon API
-type UserToken struct {
-	AccessToken string `json:"access_token"`
-	CreatedAt   int64  `json:"created_at"`
-	Scope       string `json:"scope"`
-	TokenType   string `json:"token_type"`
-}
-
-// LoginBasic does basic user authentication
-func (mc *Client) LoginBasic(username, password string, scopes []string) error {
-	if mc == nil {
-		return ErrUninitializedClient
-	}
-
-	if username == "" {
-		return errors.New("missing username")
-	}
-	if password == "" {
-		return errors.New("missing password")
-	}
-
-	hdrs := make(map[string]string)
-	opts := make(map[string]string)
-
-	hdrs["User-Agent"] = "madon/" + MadonVersion
-
-	opts["grant_type"] = "password"
-	opts["client_id"] = mc.ID
-	opts["client_secret"] = mc.Secret
-	opts["username"] = username
-	opts["password"] = password
-	if len(scopes) > 0 {
-		opts["scope"] = strings.Join(scopes, " ")
-	}
-
-	req := rest.Request{
-		BaseURL:     mc.InstanceURL + oAuthRelPath + "token",
-		Headers:     hdrs,
-		QueryParams: opts,
-		Method:      rest.Post,
-	}
-
-	r, err := restAPI(req)
-	if err != nil {
-		return err
-	}
-
-	var resp UserToken
-
-	err = json.Unmarshal([]byte(r.Body), &resp)
-	if err != nil {
-		return errors.Wrap(err, "cannot unmarshal server response")
-	}
-
-	mc.UserToken = &resp
-	return nil
-}
-
-// SetUserToken sets an existing user credentials
-// No verification of the arguments is made.
-func (mc *Client) SetUserToken(token, username, password string, scopes []string) error {
-	if mc == nil {
-		return ErrUninitializedClient
-	}
-
-	mc.UserToken = &UserToken{
-		AccessToken: token,
-		Scope:       strings.Join(scopes, " "),
-		TokenType:   "bearer",
-	}
-	return nil
-}
-
-// LoginOAuth2 handles OAuth2 authentication
-// If code is empty, the URL to the server consent page will be returned;
-// if not, the user token is set.
-func (mc *Client) LoginOAuth2(code string, scopes []string) (string, error) {
-	if mc == nil {
-		return "", ErrUninitializedClient
-	}
-
-	conf := &oauth2.Config{
-		ClientID:     mc.ID,
-		ClientSecret: mc.Secret,
-		Scopes:       scopes,
-		Endpoint: oauth2.Endpoint{
-			AuthURL:  mc.InstanceURL + oAuthRelPath + "authorize",
-			TokenURL: mc.InstanceURL + oAuthRelPath + "token",
-		},
-		RedirectURL: NoRedirect,
-	}
-
-	if code == "" {
-		// URL to consent page to ask for permission
-		// for the scopes specified above.
-		return conf.AuthCodeURL("state", oauth2.AccessTypeOffline), nil
-	}
-
-	// Return token
-	t, err := conf.Exchange(context.TODO(), code)
-	if err != nil {
-		return "", errors.Wrap(err, "cannot convert code into a token")
-	}
-	if t == nil || t.AccessToken == "" {
-		return "", errors.New("empty token")
-	}
-	return "", mc.SetUserToken(t.AccessToken, "", "", scopes)
-}