From a31a89c1282d908d756afba3cf169c7110bc019e Mon Sep 17 00:00:00 2001
From: Laurent Le Houerou <laurent@lehouerou.net>
Date: Sat, 6 Apr 2019 15:56:17 +0400
Subject: [PATCH] Ajout d'une notification par email en cas de changement d'ip
 ou d'erreur

---
 main.go | 44 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

diff --git a/main.go b/main.go
index afcd0eb..88d396e 100644
--- a/main.go
+++ b/main.go
@@ -11,6 +11,7 @@ import (
 	githttp "gopkg.in/src-d/go-git.v4/plumbing/transport/http"
 	"io/ioutil"
 	"net/http"
+	"net/smtp"
 	"os"
 	"os/signal"
 	"path"
@@ -103,7 +104,7 @@ func start(c *cli.Context) error {
 				defer func() { tryLockSem <- v }()
 				if err := update(c); err != nil {
 					log.Println(err)
-
+					SendStatusMail(fmt.Sprintf("Error during update process : %s", err))
 				}
 			default:
 				log.Debug("Skipped another update already running.")
@@ -150,6 +151,12 @@ func update(c *cli.Context) error {
 	configuration := Configuration{}
 	err := decoder.Decode(&configuration)
 
+	Info("Repository : %s", configuration.RepositoryUrl)
+	Info("Name : %s", configuration.Username)
+	Info("Email : %s", configuration.Email)
+	Info("GitLogin : %s", configuration.GitLogin)
+
+
 	err = os.RemoveAll(path.Join(configPath, "data"))
 	if err != nil {
 		return err
@@ -219,9 +226,44 @@ func update(c *cli.Context) error {
 	if err != nil {
 		return err
 	}
+
+	SendStatusMail(fmt.Sprintf(`Home IP has changed : %s -> %s
+Dns updated successfully`, currentIp, newIp))
+
 	return nil
 }
 
+func SendStatusMail(messageText string) {
+	// user we are authorizing as
+	from := "laurent@lehouerou.net"
+
+	// use we are sending email to
+	to := "laurent@lehouerou.net"
+
+	// server we are authorized to send email through
+	host := "smtp.fastmail.com"
+
+	// Create the authentication for the SendMail()
+	// using PlainText, but other authentication methods are encouraged
+	auth := smtp.PlainAuth("", from, "c9bd8fb8l4bhs2f8", host)
+
+	// NOTE: Using the backtick here ` works like a heredoc, which is why all the
+	// rest of the lines are forced to the beginning of the line, otherwise the
+	// formatting is wrong for the RFC 822 style
+	message := fmt.Sprintf(`To: "Laurent Le Houerou" <laurent@lehouerou.net>
+From: "Laurent Le Houerou" <laurent@lehouerou.net>
+Subject: DnsUpdater Status
+
+%s
+`,messageText)
+
+	if err := smtp.SendMail(host+":587", auth, from, []string{to}, []byte(message)); err != nil {
+		fmt.Println("Error SendMail: ", err)
+	} else {
+		fmt.Println("Email Sent!")
+	}
+}
+
 func GetCurrentIp() (string, error) {
 	b, err := ioutil.ReadFile(path.Join(configPath, "data/templates/home_a.lua"))
 	if err != nil {