update

README.md

@@ -6,4 +6,26 @@ combine all needed module into one lib
 
 ```
 
+```
+
+## Email
+
+```go
+m := gomail.NewMessage()
+m.SetHeader("From", "from@example.com")
+m.SetHeader("To", "to@example.com")
+m.SetHeader("Subject", "Hello!")
+m.SetBody("text/plain", "Hello!")
+
+s := gomail.SendFunc(func(from string, to []string, msg io.WriterTo) error {
+	// Implements you email-sending function, for example by calling
+	// an API, or running postfix, etc.
+	fmt.Println("From:", from)
+	fmt.Println("To:", to)
+	return nil
+})
+
+if err := gomail.Send(s, m); err != nil {
+	panic(err)
+}
 ```

cmd/test/main.go

@@ -1,7 +1,11 @@
 package main
 
 import (
+	"time"
+
+	"github.com/rs/zerolog/log"
 	"kumoly.io/kumoly/app/auth"
+	"kumoly.io/kumoly/app/email"
 	"kumoly.io/kumoly/app/history"
 	"kumoly.io/kumoly/app/server"
 	"kumoly.io/kumoly/app/store"
@@ -18,7 +22,31 @@ func main() {
 	auth.SetDB(store.DB)
 
 	sys.Inject(auth.Injector(server.API))
-	sys.Append(server, auth.New(server), &task.Service{}, &history.Service{})
+	sys.Append(server, auth.New(server),
-	sys.Start()
+		&task.Service{}, &history.Service{},
+		&email.Service{})
+	go sys.Start()
+
+	time.Sleep(time.Second)
+	err := email.Send("test@kumoly.io",
+		[]string{"evanchen333@gmail.com"}, "Test Mail",
+		&email.Body{
+			Greeting:  "歡迎",
+			Signature: "Best Regards",
+			Content: `
+# Testing
+
+a|b|c
+-|-|-
+test||
+ |is| 
+ | |up`,
+		},
+	)
+	if err != nil {
+		log.Error().Err(err).Msg("failed to send email")
+	}
+
+	<-sys.Done()
 
 }

email/base.go

@@ -1,4 +1,4 @@
-package messenger
+package email
 
 type App struct {
 	Name      string
@@ -7,12 +7,11 @@ type App struct {
 	Copyright string
 }
 
-type Base struct {
+type Body struct {
-	App      App
+	App     App
-	Title    string
+	Intros  []string
-	Intros   []string
+	Outros  []string
-	Outros   []string
+	Content string
-	Markdown string
 
 	Greeting string
 	Receiver string

email/base.gohtml

@@ -295,8 +295,8 @@
                     {{ end }}
 
                     {{/* Main Body */}}
-                    {{ if (ne .Markdown "") }}
+                    {{ if (ne .Content "") }}
-                      {{ .Markdown | ToHTML }}
+                      {{ .Content | ToHTML }}
                     {{ else }}
                       <p>No Body</p>
                     {{ end }}

email/email.go

@@ -0,0 +1,36 @@
+package email
+
+import (
+	"github.com/spf13/viper"
+	"gopkg.in/gomail.v2"
+)
+
+func init() {
+	// viper.SetDefault("email.type", "smtp")
+	viper.SetDefault("email.host", "mail.kumoly.io")
+	viper.SetDefault("email.port", 587)
+	viper.SetDefault("email.username", "test@kumoly.io")
+	viper.SetDefault("email.password", "test")
+}
+
+// host string, port int, username string, password string
+var dial *gomail.Dialer
+
+func Send(From string, To []string, Title string, b *Body) error {
+
+	m := gomail.NewMessage()
+	m.SetHeader("From", From)
+	m.SetHeader("To", To...)
+	m.SetHeader("Subject", Title)
+	// m.SetAddressHeader("Cc", "dan@example.com", "Dan")
+	// m.Attach("/home/Alex/lolcat.jpg")
+
+	body, err := Parse(b)
+	if err != nil {
+		return err
+	}
+	m.SetBody("text/html", body)
+
+	// Send the email
+	return dial.DialAndSend(m)
+}

email/engine.go

@@ -1,4 +1,4 @@
-package messenger
+package email
 
 import (
 	"bytes"
@@ -16,22 +16,25 @@ var mailTmpl string
 var engine *template.Template
 var app App
 
+var mdParser = goldmark.New(
+	goldmark.WithExtensions(extension.GFM),
+)
+
 func init() {
-	md := goldmark.New(
-		goldmark.WithExtensions(extension.GFM),
-	)
 	engine = template.Must(template.New("email").Funcs(template.FuncMap{
-		"ToHTML": func(mdtext string) (string, error) {
+		"ToHTML": ToHTML,
-			var buf bytes.Buffer
-			if err := md.Convert([]byte(mdtext), &buf); err != nil {
-				return "", err
-			}
-			return buf.String(), nil
-		},
 	}).Parse(mailTmpl))
 }
 
-func Parse(b *Base) (string, error) {
+func ToHTML(mdtext string) (template.HTML, error) {
+	var buf bytes.Buffer
+	if err := mdParser.Convert([]byte(mdtext), &buf); err != nil {
+		return "", err
+	}
+	return template.HTML(buf.String()), nil
+}
+
+func Parse(b *Body) (string, error) {
 	b.App = app
 	buf := &bytes.Buffer{}
 	err := engine.Execute(buf, b)

email/service.go

@@ -1,23 +1,31 @@
-package messenger
+package email
 
 import (
 	"fmt"
 	"time"
 
 	"github.com/spf13/viper"
+	"gopkg.in/gomail.v2"
 	"kumoly.io/kumoly/app/system"
 )
 
-type Messenger struct {
+type Service struct {
 	system.BaseService
 }
 
-func (srv Messenger) GetName() string { return "messenger.Messenger" }
+func (srv Service) GetName() string { return "email.Service" }
 
-func (srv *Messenger) Init() error {
+func (srv *Service) Init() error {
 	app.Name = viper.GetString("name")
 	app.Copyright = fmt.Sprintf("Copyright © %v %s. All rights reserved.",
 		time.Now().Year(), viper.GetString("name"))
 	app.Link = viper.GetString("server.url")
+
+	dial = gomail.NewDialer(
+		viper.GetString("email.host"),
+		viper.GetInt("email.port"),
+		viper.GetString("email.username"),
+		viper.GetString("email.password"))
+
 	return nil
 }

go.mod

@@ -60,6 +60,8 @@ require (
 	golang.org/x/sys v0.0.0-20211210111614-af8b64212486 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	google.golang.org/protobuf v1.27.1 // indirect
+	gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect
+	gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df // indirect
 	gopkg.in/ini.v1 v1.66.2 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )

go.sum

@@ -289,10 +289,14 @@ google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp0
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc h1:2gGKlE2+asNV9m7xrywl36YYNnBG5ZQ0r/BOOxqPpmk=
+gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc/go.mod h1:m7x9LTH6d71AHyAX77c9yqWCCa3UKHcVEj9y7hAtKDk=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
+gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df h1:n7WqCuqOuCbNr617RXOY0AWRXxgwEyPp2z+p0+hgMuE=
+gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df/go.mod h1:LRQQ+SO6ZHR7tOkpBDuZnXENFzX8qRjMDMyPD6BRkCw=
 gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s=
 gopkg.in/ini.v1 v1.66.2 h1:XfR1dOYubytKy4Shzc2LHrrGhU0lDCfDGG1yLPmpgsI=
 gopkg.in/ini.v1 v1.66.2/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=

messenger/messenger.go

@@ -1,5 +0,0 @@
-package messenger
-
-func init() {
-	// viper.SetDefault()
-}