smtp/server.go

   1 package smtp
   2
   3 import (
   4         "crypto/tls"
   5         "net"
   6         "net/mail"
   7 )
   8
   9 type ReplyLine struct {
  10         Code    int
  11         Message string
  12 }
  13
  14 var (
  15         ReplyOK          = ReplyLine{250, "OK"}
  16         ReplyBadSyntax   = ReplyLine{501, "syntax error"}
  17         ReplyBadSequence = ReplyLine{503, "bad sequence of commands"}
  18 )
  19
  20 type Envelope struct {
  21         RemoteAddr net.Addr
  22         EHLO       string
  23         MailFrom   mail.Address
  24         RcptTo     []mail.Address
  25         Data       []byte
  26 }
  27
  28 type Server interface {
  29         Name() string
  30         TLSConfig() *tls.Config
  31         OnEHLO() *ReplyLine
  32         OnMessageDelivered(Envelope) *ReplyLine
  33 }
  34
  35 type EmptyServerCallbacks struct {}
  36
  37 func (*EmptyServerCallbacks) TLSConfig() *tls.Config {
  38         return nil
  39 }
  40
  41 func (*EmptyServerCallbacks) OnEHLO() *ReplyLine {
  42         return nil
  43 }
  44
  45 func (*EmptyServerCallbacks) OnMessageDelivered(Envelope) *ReplyLine {
  46         return nil
  47 }