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 const MailboxAccount = "mailbox@"
  18
  19 type Server struct {
  20         // Domain is the second component of a mail address: <local-part@domain.com>.
  21         Domain string
  22
  23         TLSKeyPath  string
  24         TLSCertPath string
  25
  26         // Password for the POP3 mailbox user, mailbox@domain.com.
  27         MailboxPassword string
  28
  29         // Location to store the mail messages.
  30         MaildropPath string
  31
  32         // Blacklisted addresses that should not accept mail.
  33         BlacklistedAddresses []string
  34 }
  35
  36 func (c Config) GetTLSConfig() (*tls.Config, error) {
  37         certs := make([]tls.Certificate, 0, len(c.Servers))
  38         for _, server := range c.Servers {
  39                 if server.TLSCertPath == "" {
  40                         continue
  41                 }
  42
  43                 cert, err := tls.LoadX509KeyPair(server.TLSCertPath, server.TLSKeyPath)
  44                 if err != nil {
  45                         return nil, err
  46                 }
  47                 certs = append(certs, cert)
  48         }
  49
  50         if len(certs) == 0 {
  51                 return nil, nil
  52         }
  53
  54         config := &tls.Config{
  55                 Certificates: certs,
  56         }
  57         config.BuildNameToCertificate()
  58         return config, nil
  59 }