webui: fix csrf in POST

firewall_gui/static/js/project.js

+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 = jQuery.trim(cookies[i]);
+            if (cookie.substring(0, name.length + 1) == (name + '=')) {
+                cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
+                break;
+            }
+        }
+    }
+    return cookieValue;
+}
+var csrftoken = getCookie('csrftoken');
+
+function csrfSafeMethod(method) {
+    return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
+}
+$.ajaxSetup({
+    crossDomain: false,
+    beforeSend: function(xhr, settings) {
+        if (!csrfSafeMethod(settings.type)) {
+            xhr.setRequestHeader("X-CSRFToken", csrftoken);
+        }
+    }
+});
+
 /**
  * List of firewall collections, controllers/routes will be dynamically created from them.
  *