Added jQuery tool for doing proper CSRF with AJAX.

2013-09-04 21:57:04 +02:00
parent a4dd8c51da
commit 7f043f588b
2 changed files with 33 additions and 0 deletions
@@ -0,0 +1,32 @@
+// 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 = 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('csrftoken');
+
+function csrfSafeMethod(method) {
+    // these HTTP methods do not require CSRF protection
+    return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
+}
+
+$.ajaxSetup({
+    crossDomain: false, // obviates need for sameOrigin test
+    beforeSend: function(xhr, settings) {
+        if (!csrfSafeMethod(settings.type)) {
+            xhr.setRequestHeader("X-CSRFToken", csrftoken);
+        }
+    }
+});