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annotate cmd/sievemgr/info.go @ 19:854167f55839

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Fix SRV record lookup Do not use a configuration file default value for port in order to detect when it is not set by the user so that SRV record lookup is triggered. Depend on version 0.8.1 of go.guido-berhoerster.org/managesieve which contains an additional necessary fix.
author Guido Berhoerster <guido+sievemgr@berhoerster.name>
date Wed, 03 Feb 2021 13:34:44 +0100
parents d14d93d011d7
children fc5e6970a0d5
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1 // Copyright (C) 2020 Guido Berhoerster <guido+sievemgr@berhoerster.name>
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2 //
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3 // Permission is hereby granted, free of charge, to any person obtaining
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4 // a copy of this software and associated documentation files (the
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5 // "Software"), to deal in the Software without restriction, including
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6 // without limitation the rights to use, copy, modify, merge, publish,
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7 // distribute, sublicense, and/or sell copies of the Software, and to
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8 // permit persons to whom the Software is furnished to do so, subject to
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9 // the following conditions:
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10 //
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11 // The above copyright notice and this permission notice shall be included
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12 // in all copies or substantial portions of the Software.
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13 //
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14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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17 // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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18 // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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19 // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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20 // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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21
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22 package main
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23
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24 import (
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25 "crypto/tls"
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26 "fmt"
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27 "net"
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28
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29 "go.guido-berhoerster.org/managesieve"
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30 )
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31
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32 func init() {
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33 cmdInfo.Flag.StringVar(&acctName, "a", "", "Select the account")
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34 }
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35
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36 var cmdInfo = &command{
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37 UsageLine: "info [options]",
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38 Run: runInfo,
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39 }
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40
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41 func runInfo(cmd *command, args []string) error {
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42 if len(args) != 0 {
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43 return usageError("invalid number of arguments")
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44 }
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45
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46 acct, err := getAccount(&conf, acctName)
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47 if err != nil {
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48 return err
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49 }
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50
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51 if err := lookupHostPort(acct); err != nil {
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52 return err
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53 }
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54
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55 if err := readPassword(acct); err != nil {
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56 return err
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57 }
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58
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59 // dialPlainAuth() is not used here so that SASL mechanisms can be
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60 // determined before authentication
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61 c, err := managesieve.Dial(net.JoinHostPort(acct.Host, acct.Port))
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62 if err != nil {
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63 return fmt.Errorf("failed to connect: %s", err)
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64 }
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66 // switch to a TLS connection except for localhost
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67 if acct.Host != "localhost" && acct.Host != "127.0.0.1" &&
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68 acct.Host != "::1" {
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69 tlsConf := &tls.Config{
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70 ServerName: acct.Host,
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71 InsecureSkipVerify: acct.Insecure,
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72 }
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73 if err := c.StartTLS(tlsConf); err != nil {
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74 return fmt.Errorf("failed to start TLS connection: %s",
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75 err)
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76 }
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77 }
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78 saslMechs := c.SASLMechanisms()
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79
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80 auth := managesieve.PlainAuth("", acct.User, acct.Password, acct.Host)
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81 if err := c.Authenticate(auth); err != nil {
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82 return fmt.Errorf("failed to authenticate user %s: %s",
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83 acct.User, err)
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84 }
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85 defer c.Logout()
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86
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87 fmt.Printf("%s (%s)\n", net.JoinHostPort(acct.Host, acct.Port),
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88 c.Implementation())
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89 if c.SupportsRFC5804() {
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90 fmt.Println("RFC5804 supported")
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91 }
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92 if c.SupportsTLS() {
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93 fmt.Println("STARTTLS supported")
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94 }
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95 fmt.Printf("SASL mechanisms:\n")
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96 for _, m := range saslMechs {
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97 fmt.Printf(" %s\n", m)
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98 }
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99 fmt.Printf("Extensions:\n")
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100 for _, e := range c.Extensions() {
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101 fmt.Printf(" %s\n", e)
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102 }
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103 fmt.Printf("Notification methods:\n")
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104 for _, m := range c.NotifyMethods() {
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105 fmt.Printf(" %s\n", m)
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106 }
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107
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108 return nil
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109 }