Support CSRF_COOKIE_NAME

Added support for custom CSRF_COOKIE_NAME by refactoring the jquery.django-csrf.js file into a separate .html file that can be used as an include, passing in the CSRF_COOKIE_NAME from settings.

adminsortable/templates/adminsortable/change_form.html

@@ -8,7 +8,7 @@
 
     {% if has_sortable_tabular_inlines or has_sortable_stacked_inlines %}
         <script type="text/javascript" src="{% static 'adminsortable/js/jquery-ui-django-admin.min.js' %}"></script>
-        <script type="text/javascript" src="{% static 'adminsortable/js/jquery.django-csrf.js' %}"></script>
+        {% include 'adminsortable/csrf/jquery.django-csrf.html' with csrf_cookie_name=csrf_cookie_name %}
     {% endif %}
 
     {% if has_sortable_tabular_inlines %}

adminsortable/templates/adminsortable/change_list.html

@@ -13,7 +13,7 @@
     <script src="{% static jquery_lib_path %}"></script>
     <script src="{% static 'admin/js/jquery.init.js' %}"></script>
 	<script src="{% static 'adminsortable/js/jquery-ui-django-admin.min.js' %}"></script>
-    <script src="{% static 'adminsortable/js/jquery.django-csrf.js' %}"></script>
+    {% include 'adminsortable/csrf/jquery.django-csrf.html' with csrf_cookie_name=csrf_cookie_name %}
     <script src="{% static 'adminsortable/js/admin.sortable.js' %}"></script>
 {% endblock %}
 

adminsortable/templates/adminsortable/csrf/jquery.django-csrf.html

@@ -0,0 +1,34 @@
+<script>
+    // using jQuery
+    function getCookie(name) {
+        var cookieValue = null;
+        if (document.cookie && document.cookie !== '') {
+            var cookies = document.cookie.split(';');
+            for (var i = 0; i < cookies.length; i++) {
+                var cookie = django.jQuery.trim(cookies[i]);
+                // Does this cookie string begin with the name we want?
+                if (cookie.substring(0, name.length + 1) === (name + '=')) {
+                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
+                    break;
+                }
+            }
+        }
+        return cookieValue;
+    }
+
+    var csrftoken = getCookie('{{ csrf_cookie_name }}');
+
+    function csrfSafeMethod(method) {
+        // these HTTP methods do not require CSRF protection
+        return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
+    }
+
+    django.jQuery.ajaxSetup({
+        crossDomain: false, // obviates need for sameOrigin test
+        beforeSend: function(xhr, settings) {
+            if (!csrfSafeMethod(settings.type)) {
+                xhr.setRequestHeader("X-CSRFToken", csrftoken);
+            }
+        }
+    });
+</script>