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package main
import (
"bytes"
"fmt"
"github.com/Masterminds/sprig"
"gopkg.in/gomail.v2"
"text/template"
)
type NotificationMail interface {
GetData() interface{}
GetTemplate() string
GetSubject() string
GetHeaders() map[string]string
}
var notifyMail = make(chan NotificationMail, 1)
var quitMailNotifier = make(chan int)
func CloseMailNotifier() {
quitMailNotifier <- 1
}
func MailNotifier() {
logger.Println("Launched mail notifier")
for {
select {
case notification := <-notifyMail:
mailText, err := buildMail(notification.GetTemplate(), notification.GetData())
if err != nil {
logger.Println("ERROR building mail:", err)
continue
}
m := gomail.NewMessage()
m.SetHeader("From", config.NoticeSenderAddress)
m.SetHeader("To", config.BoardMailAddress)
m.SetHeader("Subject", notification.GetSubject())
for header, value := range notification.GetHeaders() {
m.SetHeader(header, value)
}
m.SetBody("text/plain", mailText.String())
d := gomail.NewDialer(config.MailServer.Host, config.MailServer.Port, "", "")
if err := d.DialAndSend(m); err != nil {
logger.Println("ERROR sending mail:", err)
}
case <-quitMailNotifier:
fmt.Println("Ending mail notifier")
return
}
}
}
func buildMail(templateName string, context interface{}) (mailText *bytes.Buffer, err error) {
t, err := template.New(templateName).Funcs(
sprig.GenericFuncMap()).ParseFiles(fmt.Sprintf("templates/%s", templateName))
if err != nil {
return
}
mailText = bytes.NewBufferString("")
t.Execute(mailText, context)
return
}
type NotificationClosedDecision struct {
decision Decision
voteSums VoteSums
}
func (n *NotificationClosedDecision) GetData() interface{} {
return struct {
*Decision
*VoteSums
}{&n.decision, &n.voteSums}
}
func (n *NotificationClosedDecision) GetTemplate() string {
return "closed_motion_mail.txt"
}
func (n *NotificationClosedDecision) GetSubject() string {
return fmt.Sprintf("Re: %s - %s - finalised", n.decision.Tag, n.decision.Title)
}
func (n *NotificationClosedDecision) GetHeaders() map[string]string {
return map[string]string{"References": fmt.Sprintf("<%s>", n.decision.Tag)}
}
type NotificationCreateMotion struct {
decision Decision
voter Voter
}
func (n *NotificationCreateMotion) GetData() interface{} {
voteURL := fmt.Sprintf("%s/vote", config.BaseURL)
unvotedURL := fmt.Sprintf("%s/motions/?unvoted=1", config.BaseURL)
return struct {
*Decision
Name string
VoteURL string
UnvotedURL string
}{&n.decision, n.voter.Name, voteURL, unvotedURL}
}
func (n *NotificationCreateMotion) GetTemplate() string {
return "create_motion_mail.txt"
}
func (n *NotificationCreateMotion) GetSubject() string {
return fmt.Sprintf("%s - %s", n.decision.Tag, n.decision.Title)
}
func (n *NotificationCreateMotion) GetHeaders() map[string]string {
return map[string]string{"Message-ID": fmt.Sprintf("<%s>", n.decision.Tag)}
}
type NotificationUpdateMotion struct {
decision Decision
voter Voter
}
func (n *NotificationUpdateMotion) GetData() interface{} {
voteURL := fmt.Sprintf("%s/vote", config.BaseURL)
unvotedURL := fmt.Sprintf("%s/motions/?unvoted=1", config.BaseURL)
return struct {
*Decision
Name string
VoteURL string
UnvotedURL string
}{&n.decision, n.voter.Name, voteURL, unvotedURL}
}
func (n *NotificationUpdateMotion) GetTemplate() string {
return "update_motion_mail.txt"
}
func (n *NotificationUpdateMotion) GetSubject() string {
return fmt.Sprintf("Re: %s - %s", n.decision.Tag, n.decision.Title)
}
func (n *NotificationUpdateMotion) GetHeaders() map[string]string {
return map[string]string{"References": fmt.Sprintf("<%s>", n.decision.Tag)}
}
type NotificationWithDrawMotion struct {
decision Decision
voter Voter
}
func (n *NotificationWithDrawMotion) GetData() interface{} {
return struct {
*Decision
Name string
}{&n.decision, n.voter.Name}
}
func (n *NotificationWithDrawMotion) GetTemplate() string {
return "withdraw_motion_mail.txt"
}
func (n *NotificationWithDrawMotion) GetSubject() string {
return fmt.Sprintf("Re: %s - %s - withdrawn", n.decision.Tag, n.decision.Title)
}
func (n *NotificationWithDrawMotion) GetHeaders() map[string]string {
return map[string]string{"References": fmt.Sprintf("<%s>", n.decision.Tag)}
}
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