API: add login username in SendLoginLogCommand (#28544)

* API: add login username in Login actions

* LoginUser -> LoginUsername

* fix test

pkg/api/login.go

@@ -181,6 +181,7 @@ func (hs *HTTPServer) LoginPost(c *models.ReqContext, cmd dtos.LoginCommand) Res
 			ReqContext:    c,
 			LogAction:     action,
 			User:          user,
+			LoginUsername: cmd.User,
 			HTTPStatus:    response.status,
 			Error:         err,
 		})

pkg/api/login_test.go

@@ -687,6 +687,7 @@ func TestLoginPostSendLoginLog(t *testing.T) {
 
 			cmd := testReceiver.cmd
 			assert.Equal(t, c.cmd.LogAction, cmd.LogAction)
+			assert.Equal(t, "admin", cmd.LoginUsername)
 			assert.Equal(t, c.cmd.HTTPStatus, cmd.HTTPStatus)
 			assert.Equal(t, c.cmd.Error, cmd.Error)
 

pkg/models/user_auth.go

@@ -70,6 +70,7 @@ type SendLoginLogCommand struct {
 	LogAction     string
 	User          *User
 	ExternalUser  *ExternalUserInfo
+	LoginUsername string
 	HTTPStatus    int
 	Error         error
 }