LOGIN_BANNER config to display a banner above the login form

uffd/default_config.cfg

@@ -109,6 +109,9 @@ SERVICES_BANNER_PUBLIC=True
 # Enable the service overview page for users who are not logged in
 SERVICES_PUBLIC=True
 
+# An optional banner that will be displayed above the login form
+#LOGIN_BANNER='Always check the URL. Never enter your SSO password on any other site.'
+
 BRANDING_LOGO_URL='/static/empty.png'
 SITE_TITLE='uffd'
 

uffd/session/templates/session/login.html

@@ -5,6 +5,9 @@
 	<div class="col-12">
 		<h2 class="text-center">{{_("Login")}}</h2>
 	</div>
+	{% if config['LOGIN_BANNER'] %}
+		<p>{{ config['LOGIN_BANNER'] }}</p>
+	{% endif %}
 	<div class="form-group col-12">
 		<label for="user-loginname">{{_("Login Name")}}</label>
 		<input type="text" class="form-control" id="user-loginname" name="loginname" required="required" tabindex = "1" autofocus>