From cfb4bf6be1b18ec15cddbec1ea37e76176b1050b Mon Sep 17 00:00:00 2001
From: ckonstanski <kostcarl@isu.edu>
Date: Thu, 30 Jul 2026 17:56:41 -0600
Subject: initial commit

---
 src/static/rest_framework/js/csrf.js | 52 ++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 src/static/rest_framework/js/csrf.js

(limited to 'src/static/rest_framework/js/csrf.js')

diff --git a/src/static/rest_framework/js/csrf.js b/src/static/rest_framework/js/csrf.js
new file mode 100644
index 0000000..6e4bf39
--- /dev/null
+++ b/src/static/rest_framework/js/csrf.js
@@ -0,0 +1,52 @@
+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;
+}
+
+function csrfSafeMethod(method) {
+  // these HTTP methods do not require CSRF protection
+  return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
+}
+
+function sameOrigin(url) {
+  // test that a given url is a same-origin URL
+  // url could be relative or scheme relative or absolute
+  var host = document.location.host; // host + port
+  var protocol = document.location.protocol;
+  var sr_origin = '//' + host;
+  var origin = protocol + sr_origin;
+
+  // Allow absolute or scheme relative URLs to same origin
+  return (url == origin || url.slice(0, origin.length + 1) == origin + '/') ||
+    (url == sr_origin || url.slice(0, sr_origin.length + 1) == sr_origin + '/') ||
+    // or any other URL that isn't scheme relative or absolute i.e relative.
+    !(/^(\/\/|http:|https:).*/.test(url));
+}
+
+var csrftoken = window.drf.csrfToken;
+
+$.ajaxSetup({
+  beforeSend: function(xhr, settings) {
+    if (!csrfSafeMethod(settings.type) && sameOrigin(settings.url)) {
+      // Send the token to same-origin, relative URLs only.
+      // Send the token only if the method warrants CSRF protection
+      // Using the CSRFToken value acquired earlier
+      xhr.setRequestHeader(window.drf.csrfHeaderName, csrftoken);
+    }
+  }
+});
-- 
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