settings.PUBLIC_SITE, login required if public for logbook entry, CRCF middleware

templates/registration/login.html

@@ -6,7 +6,7 @@
 <p>Your username and password didn't match. Please try again.</p>
 {% endif %}
 
-<form method="post" action=".">
+<form method="post" action=".">{% csrf_token %}
 <table>
 <tr><td>{{ form.username.label_tag }}</td><td>{{ form.username }}</td></tr>
 <tr><td>{{ form.password.label_tag }}</td><td>{{ form.password }}</td></tr>