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|
package compose
import (
"crypto/tls"
"errors"
"fmt"
"net/mail"
"net/url"
"strings"
"github.com/emersion/go-sasl"
"github.com/emersion/go-smtp"
"git.sr.ht/~sircmpwn/aerc2/widgets"
)
func init() {
register("send-message", SendMessage)
}
func SendMessage(aerc *widgets.Aerc, args []string) error {
if len(args) > 1 {
return errors.New("Usage: send-message")
}
composer, _ := aerc.SelectedTab().(*widgets.Composer)
config := composer.Config()
if config.Outgoing == "" {
return errors.New(
"No outgoing mail transport configured for this account")
}
uri, err := url.Parse(config.Outgoing)
if err != nil {
return err
}
var (
scheme string
auth string = "plain"
)
parts := strings.Split(uri.Scheme, "+")
if len(parts) == 1 {
scheme = parts[0]
} else if len(parts) == 2 {
scheme = parts[0]
auth = parts[1]
} else {
return fmt.Errorf("Unknown transfer protocol %s", uri.Scheme)
}
header, rcpts, err := composer.Header()
if err != nil {
return err
}
if config.From == "" {
return errors.New("No 'From' configured for this account")
}
from, err := mail.ParseAddress(config.From)
if err != nil {
return err
}
var (
saslClient sasl.Client
conn *smtp.Client
)
switch auth {
case "":
fallthrough
case "none":
saslClient = nil
case "plain":
password, _ := uri.User.Password()
saslClient = sasl.NewPlainClient("", uri.User.Username(), password)
default:
return fmt.Errorf("Unsupported auth mechanism %s", auth)
}
tlsConfig := &tls.Config{
// TODO: ask user first
InsecureSkipVerify: true,
}
switch scheme {
case "smtp":
host := uri.Host
if !strings.ContainsRune(host, ':') {
host = host + ":587" // Default to submission port
}
conn, err = smtp.Dial(host)
if err != nil {
return err
}
defer conn.Close()
if sup, _ := conn.Extension("STARTTLS"); sup {
// TODO: let user configure tls?
if err = conn.StartTLS(tlsConfig); err != nil {
return err
}
}
case "smtps":
host := uri.Host
if !strings.ContainsRune(host, ':') {
host = host + ":465" // Default to smtps port
}
conn, err = smtp.DialTLS(host, tlsConfig)
if err != nil {
return err
}
defer conn.Close()
}
// TODO: sendmail
if saslClient != nil {
if err = conn.Auth(saslClient); err != nil {
return err
}
}
// TODO: the user could conceivably want to use a different From and sender
if err = conn.Mail(from.Address); err != nil {
return err
}
for _, rcpt := range rcpts {
if err = conn.Rcpt(rcpt); err != nil {
return err
}
}
wc, err := conn.Data()
if err != nil {
return err
}
defer wc.Close()
composer.WriteMessage(header, wc)
composer.Close()
aerc.RemoveTab(composer)
return nil
}
|
