Fix blank invite email (#17065)

* Fix blank invite email

* Some small improvements

* Another small fix

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/email_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/mattermost/mattermost-server/v5/model"
+	"github.com/mattermost/mattermost-server/v5/services/mailservice"
 )
 
 func TestCondenseSiteURL(t *testing.T) {
@@ -133,3 +134,39 @@ func TestSendAdminUpgradeRequestEmailOnJoin(t *testing.T) {
 	require.NotNil(t, err)
 	assert.Equal(t, err.Id, "app.email.rate_limit_exceeded.app_error")
 }
+
+func TestSendInviteEmails(t *testing.T) {
+	th := Setup(t).InitBasic()
+	defer th.TearDown()
+	th.ConfigureInbucketMail()
+
+	th.App.UpdateConfig(func(cfg *model.Config) {
+		*cfg.ServiceSettings.EnableEmailInvitations = true
+	})
+
+	emailTo := "test@example.com"
+	mailservice.DeleteMailBox(emailTo)
+
+	appErr := th.App.Srv().EmailService.SendInviteEmails(th.BasicTeam, "test-user", th.BasicUser.Id, []string{emailTo}, "http://testserver")
+	require.Nil(t, appErr)
+
+	var resultsMailbox mailservice.JSONMessageHeaderInbucket
+	err2 := mailservice.RetryInbucket(5, func() error {
+		var err error
+		resultsMailbox, err = mailservice.GetMailBox(emailTo)
+		return err
+	})
+	if err2 != nil {
+		t.Log(err2)
+		t.Log("No email was received, maybe due load on the server. Skipping this verification")
+	} else if len(resultsMailbox) > 0 {
+		require.Len(t, resultsMailbox, 1)
+		require.Contains(t, resultsMailbox[0].To[0], emailTo, "Wrong To: recipient")
+		resultsEmail, err := mailservice.GetMessageFromMailbox(emailTo, resultsMailbox[0].ID)
+		require.NoError(t, err, "Could not get message from mailbox")
+		require.Contains(t, resultsEmail.Body.HTML, "http://testserver", "Wrong received message %s", resultsEmail.Body.Text)
+		require.Contains(t, resultsEmail.Body.HTML, "test-user", "Wrong received message %s", resultsEmail.Body.Text)
+		require.Contains(t, resultsEmail.Body.Text, "http://testserver", "Wrong received message %s", resultsEmail.Body.Text)
+		require.Contains(t, resultsEmail.Body.Text, "test-user", "Wrong received message %s", resultsEmail.Body.Text)
+	}
+}

app/helper_test.go

@@ -530,6 +530,21 @@ func (*TestHelper) GetSqlStore() *sqlstore.SqlStore {
 	return mainHelper.GetSQLStore()
 }
 
+func (th *TestHelper) ConfigureInbucketMail() {
+	inbucket_host := os.Getenv("CI_INBUCKET_HOST")
+	if inbucket_host == "" {
+		inbucket_host = "localhost"
+	}
+	inbucket_port := os.Getenv("CI_INBUCKET_SMTP_PORT")
+	if inbucket_port == "" {
+		inbucket_port = "10025"
+	}
+	th.App.UpdateConfig(func(cfg *model.Config) {
+		*cfg.EmailSettings.SMTPServer = inbucket_host
+		*cfg.EmailSettings.SMTPPort = inbucket_port
+	})
+}
+
 func (*TestHelper) ResetRoleMigration() {
 	sqlStore := mainHelper.GetSQLStore()
 	if _, err := sqlStore.GetMaster().Exec("DELETE from Roles"); err != nil {

templates/invite_body.html

@@ -19,7 +19,7 @@
                                         <tr>
                                             <td style="border-bottom: 1px solid #ddd; padding: 0 0 20px;">
                                                 <h2 style="font-weight: normal; margin-top: 10px;">{{.Props.Title}}</h2>
-                                                <p>{{.Html.Info}}</p>
+                                                <p>{{.HTML.Info}}</p>
                                                 <p style="margin: 30px 0 15px">
                                                     <a href="{{.Props.Link}}" style="background: #2389D7; border-radius: 3px; color: #fff; border: none; outline: none; min-width: 200px; padding: 15px 25px; font-size: 14px; font-family: inherit; cursor: pointer; -webkit-appearance: none;text-decoration: none;">{{.Props.Button}}</a>
                                                 </p>
@@ -37,7 +37,7 @@
                                                     </table>
                                                 {{end}}
                                                 <br/>
-                                                <p>{{.Html.ExtraInfo}}<br/><br/><a href='{{.Props.TeamURL}}'>{{.Props.TeamURL}}</a></p>
+                                                <p>{{.HTML.ExtraInfo}}<br/><br/><a href='{{.Props.TeamURL}}'>{{.Props.TeamURL}}</a></p>
                                             </td>
                                         </tr>
                                         <tr>