go-mail/smtp/auth_xoauth2.go

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// SPDX-FileCopyrightText: Copyright (c) 2023 The go-mail Authors
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//
// SPDX-License-Identifier: MIT
package smtp
type xoauth2Auth struct {
username, token string
}
// XOAuth2Auth returns an [Auth] that implements the XOAuth2 authentication
// mechanism as defined in the following specs:
//
// https://developers.google.com/gmail/imap/xoauth2-protocol
// https://learn.microsoft.com/en-us/exchange/client-developer/legacy-protocols/how-to-authenticate-an-imap-pop-smtp-application-by-using-oauth
func XOAuth2Auth(username, token string) Auth {
return &xoauth2Auth{username, token}
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}
func (a *xoauth2Auth) Start(_ *ServerInfo) (string, []byte, error) {
return "XOAUTH2", []byte("user=" + a.username + "\x01" + "auth=Bearer " + a.token + "\x01\x01"), nil
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}
func (a *xoauth2Auth) Next(_ []byte, more bool) ([]byte, error) {
if more {
return []byte(""), nil
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}
return nil, nil
}