config.go

   1 package main
   2
   3 import (
   4         "crypto/tls"
   5 )
   6
   7 type Config struct {
   8         SMTPPort int
   9         POP3Port int
  10
  11         // Hostname is the name of the MX server that is running.
  12         Hostname string
  13
  14         Servers []Server
  15 }
  16
  17 type Server struct {
  18         // Domain is the second component of a mail address: <local-part@domain.com>.
  19         Domain string
  20
  21         TLSKeyPath  string
  22         TLSCertPath string
  23
  24         // Password for the POP3 mailbox user, mailbox@domain.com.
  25         MailboxPassword string
  26
  27         // Location to store the mail messages.
  28         MaildropPath string
  29
  30         // Blacklisted addresses that should not accept mail.
  31         BlacklistedAddresses []string
  32 }
  33
  34 func (c Config) GetTLSConfig() (*tls.Config, error) {
  35         certs := make([]tls.Certificate, 0, len(c.Servers))
  36         for _, server := range c.Servers {
  37                 if server.TLSCertPath == "" {
  38                         continue
  39                 }
  40
  41                 cert, err := tls.LoadX509KeyPair(server.TLSCertPath, server.TLSKeyPath)
  42                 if err != nil {
  43                         return nil, err
  44                 }
  45                 certs = append(certs, cert)
  46         }
  47
  48         if len(certs) == 0 {
  49                 return nil, nil
  50         }
  51
  52         config := &tls.Config{
  53                 Certificates: certs,
  54         }
  55         config.BuildNameToCertificate()
  56         return config, nil
  57 }