25 lines
621 B
Go
25 lines
621 B
Go
package smtp
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import (
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"net/smtp"
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)
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type oauth2Auth struct {
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username, accessToken string
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}
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// OAuth2Auth returns an Auth that implements the SASL XOAUTH2 authentication
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// as per https://developers.google.com/gmail/imap/xoauth2-protocol
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func OAuth2Auth(username, accessToken string) smtp.Auth {
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return &oauth2Auth{username, accessToken}
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}
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func (a *oauth2Auth) Start(_ *smtp.ServerInfo) (string, []byte, error) {
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resp := []byte("user=" + a.username + "\x01auth=Bearer " + a.accessToken + "\x01\x01")
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return "XOAUTH2", resp, nil
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}
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func (a *oauth2Auth) Next(_ []byte, _ bool) ([]byte, error) {
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return nil, nil
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}
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