passes subject and email body as parameters

handler/routes.go

@@ -189,7 +189,7 @@ func NewClient() echo.HandlerFunc {
 }
 
 // EmailClient handler to sent the configuration via email
-func EmailClient(mailer emailer.Emailer) echo.HandlerFunc {
+func EmailClient(mailer emailer.Emailer, emailSubject, emailContent string) echo.HandlerFunc {
 	type clientIdEmailPayload struct {
 		ID    string `json:"id"`
 		Email string `json:"email"`
@@ -220,8 +220,8 @@ func EmailClient(mailer emailer.Emailer) echo.HandlerFunc {
 		err = mailer.Send(
 			clientData.Client.Name,
 			payload.Email,
-			"Your Wireguard configuration",
-			"instructions here",
+			emailSubject,
+			emailContent,
 			[]emailer.Attachment{cfg_att, qr_att},
 		)
 		if err != nil {

main.go

@@ -24,6 +24,15 @@ var (
 	buildTime  = fmt.Sprintf(time.Now().UTC().Format("01-02-2006 15:04:05"))
 )
 
+const (
+	defaultEmailSubject = "Your wireguard configuration"
+	defaultEmailContent = `Hi,</br>
+<p>in this email you can file your personal configuration for our wireguard server.</p>
+
+<p>Best</p>
+`
+)
+
 func init() {
 	// command-line flags
 	flagDisableLogin := flag.Bool("disable-login", false, "Disable login page. Turn off authentication.")
@@ -81,7 +90,7 @@ func main() {
 	app.GET("/logout", handler.Logout(), handler.ValidSession)
 	app.POST("/new-client", handler.NewClient(), handler.ValidSession)
 	app.POST("/update-client", handler.UpdateClient(), handler.ValidSession)
-	app.POST("/email-client", handler.EmailClient(sendmail), handler.ValidSession)
+	app.POST("/email-client", handler.EmailClient(sendmail, defaultEmailSubject, defaultEmailContent), handler.ValidSession)
 	app.POST("/client/set-status", handler.SetClientStatus(), handler.ValidSession)
 	app.POST("/remove-client", handler.RemoveClient(), handler.ValidSession)
 	app.GET("/download", handler.DownloadClient(), handler.ValidSession)

util/config.go

@@ -7,5 +7,7 @@ var (
 	SendgridApiKey string
 	EmailFrom      string
 	EmailFromName  string
+	EmailSubject   string
+	EmailContent   string
 	SessionSecret  []byte
 )