Login: fix login page failing when navigating from reset password views (#19124)

pkg/api/frontendsettings.go

@@ -179,6 +179,9 @@ func (hs *HTTPServer) getFrontendSettingsMap(c *m.ReqContext) (map[string]interf
 		"exploreEnabled":             setting.ExploreEnabled,
 		"googleAnalyticsId":          setting.GoogleAnalyticsId,
 		"disableLoginForm":           setting.DisableLoginForm,
+		"disableUserSignUp":          !setting.AllowUserSignUp,
+		"loginHint":                  setting.LoginHint,
+		"passwordHint":               setting.PasswordHint,
 		"externalUserMngInfo":        setting.ExternalUserMngInfo,
 		"externalUserMngLinkUrl":     setting.ExternalUserMngLinkUrl,
 		"externalUserMngLinkName":    setting.ExternalUserMngLinkName,

pkg/api/login.go

@@ -40,10 +40,6 @@ func (hs *HTTPServer) LoginView(c *models.ReqContext) {
 	}
 
 	viewData.Settings["oauth"] = enabledOAuths
-	viewData.Settings["disableUserSignUp"] = !setting.AllowUserSignUp
-	viewData.Settings["loginHint"] = setting.LoginHint
-	viewData.Settings["passwordHint"] = setting.PasswordHint
-	viewData.Settings["disableLoginForm"] = setting.DisableLoginForm
 	viewData.Settings["samlEnabled"] = setting.IsEnterprise && hs.Cfg.SAMLEnabled
 
 	if loginError, ok := tryGetEncryptedCookie(c, LoginErrorCookieName); ok {

public/app/core/components/Login/LoginCtrl.tsx

@@ -9,7 +9,9 @@ import { getBackendSrv } from '@grafana/runtime';
 import { hot } from 'react-hot-loader';
 import appEvents from 'app/core/app_events';
 
-const isOauthEnabled = () => Object.keys(config.oauth).length > 0;
+const isOauthEnabled = () => {
+  return !!config.oauth && Object.keys(config.oauth).length > 0;
+};
 
 export interface FormModel {
   user: string;