1 files changed, 78 insertions, 0 deletions
diff --git a/services/mailer/mail_admin_new_user.go b/services/mailer/mail_admin_new_user.go
new file mode 100644
index 0000000..0713de8
--- /dev/null
+++ b/services/mailer/mail_admin_new_user.go
@@ -0,0 +1,78 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+package mailer
+
+import (
+	"bytes"
+	"context"
+	"strconv"
+
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/templates"
+	"code.gitea.io/gitea/modules/translation"
+)
+
+const (
+	tplNewUserMail base.TplName = "notify/admin_new_user"
+)
+
+// MailNewUser sends notification emails on new user registrations to all admins
+func MailNewUser(ctx context.Context, u *user_model.User) {
+	if !setting.Admin.SendNotificationEmailOnNewUser {
+		return
+	}
+	if setting.MailService == nil {
+		// No mail service configured
+		return
+	}
+
+	recipients, err := user_model.GetAllAdmins(ctx)
+	if err != nil {
+		log.Error("user_model.GetAllAdmins: %v", err)
+		return
+	}
+
+	langMap := make(map[string][]string)
+	for _, r := range recipients {
+		langMap[r.Language] = append(langMap[r.Language], r.Email)
+	}
+
+	for lang, tos := range langMap {
+		mailNewUser(ctx, u, lang, tos)
+	}
+}
+
+func mailNewUser(_ context.Context, u *user_model.User, lang string, tos []string) {
+	locale := translation.NewLocale(lang)
+
+	manageUserURL := setting.AppURL + "admin/users/" + strconv.FormatInt(u.ID, 10)
+	subject := locale.TrString("mail.admin.new_user.subject", u.Name)
+	body := locale.TrString("mail.admin.new_user.text", manageUserURL)
+	mailMeta := map[string]any{
+		"NewUser":      u,
+		"NewUserUrl":   u.HTMLURL(),
+		"Subject":      subject,
+		"Body":         body,
+		"Language":     locale.Language(),
+		"Locale":       locale,
+		"SanitizeHTML": templates.SanitizeHTML,
+	}
+
+	var mailBody bytes.Buffer
+
+	if err := bodyTemplates.ExecuteTemplate(&mailBody, string(tplNewUserMail), mailMeta); err != nil {
+		log.Error("ExecuteTemplate [%s]: %v", string(tplNewUserMail)+"/body", err)
+		return
+	}
+
+	msgs := make([]*Message, 0, len(tos))
+	for _, to := range tos {
+		msg := NewMessage(to, subject, mailBody.String())
+		msg.Info = subject
+		msgs = append(msgs, msg)
+	}
+	SendAsync(msgs...)
+}