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         ReplyBadMailbox  = ReplyLine{550, "mailbox unavailable"}
  19 )
  20
  21 type Envelope struct {
  22         RemoteAddr net.Addr
  23         EHLO       string
  24         MailFrom   mail.Address
  25         RcptTo     []mail.Address
  26         Data       []byte
  27 }
  28
  29 type Server interface {
  30         Name() string
  31         TLSConfig() *tls.Config
  32         OnEHLO() *ReplyLine
  33         VerifyAddress(mail.Address) ReplyLine
  34         OnMessageDelivered(Envelope) *ReplyLine
  35 }
  36
  37 type EmptyServerCallbacks struct {}
  38
  39 func (*EmptyServerCallbacks) TLSConfig() *tls.Config {
  40         return nil
  41 }
  42
  43 func (*EmptyServerCallbacks) OnEHLO() *ReplyLine {
  44         return nil
  45 }
  46
  47 func (*EmptyServerCallbacks) VerifyAddress(mail.Address) ReplyLine {
  48         return ReplyOK
  49 }
  50
  51 func (*EmptyServerCallbacks) OnMessageDelivered(Envelope) *ReplyLine {
  52         return nil
  53 }