Sendmail command

cmd/admin.go

@@ -20,6 +20,7 @@ import (
 	pwd "code.gitea.io/gitea/modules/password"
 	repo_module "code.gitea.io/gitea/modules/repository"
 	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/services/mailer"
 
 	"github.com/urfave/cli"
 )
@@ -35,6 +36,7 @@ var (
 			subcmdRepoSyncReleases,
 			subcmdRegenerate,
 			subcmdAuth,
+			subcmdSendMail,
 		},
 	}
 
@@ -253,6 +255,24 @@ var (
 		Action: runAddOauth,
 		Flags:  oauthCLIFlags,
 	}
+
+	subcmdSendMail = cli.Command{
+		Name:   "sendmail",
+		Usage:  "Send a message to all users",
+		Action: runSendMail,
+		Flags: []cli.Flag{
+			cli.StringFlag{
+				Name:  "title",
+				Usage: `a title of a message`,
+				Value: "",
+			},
+			cli.StringFlag{
+				Name:  "content",
+				Usage: "a content of a message",
+				Value: "",
+			},
+		},
+	}
 )
 
 func runChangePassword(c *cli.Context) error {
@@ -606,3 +626,43 @@ func runDeleteAuth(c *cli.Context) error {
 
 	return models.DeleteSource(source)
 }
+
+func runSendMail(c *cli.Context) error {
+	if !c.IsSet("title") {
+		return errors.New("--title flag is missing")
+	}
+
+	if !c.IsSet("content") {
+		return errors.New("--content flag is missing")
+	}
+
+	subject := c.String("title")
+	body := c.String("content")
+
+	if err := initDB(); err != nil {
+		return err
+	}
+
+	users, _, err := models.SearchUsers(&models.SearchUserOptions{
+		Type:        models.UserTypeIndividual,
+		OrderBy:     models.SearchOrderByAlphabetically,
+		ListOptions: models.ListOptions{},
+	})
+	if err != nil {
+		return errors.New("Cann't find users")
+	}
+
+	var emails []string
+	for _, user := range users {
+		emails = append(emails, user.Email)
+	}
+
+	mailer.NewContext()
+	msg := mailer.NewMessage(emails, subject, body)
+	err = mailer.SendSync(msg)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

services/mailer/mailer.go

@@ -335,6 +335,12 @@ func NewContext() {
 	go graceful.GetManager().RunWithShutdownFns(mailQueue.Run)
 }
 
+// SendSync uses default sender to send a message with blocking
+func SendSync(msg *Message) error {
+	gomailMsg := msg.ToMessage()
+	return gomail.Send(Sender, gomailMsg)
+}
+
 // SendAsync send mail asynchronously
 func SendAsync(msg *Message) {
 	go func() {