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Merged in [7398] from rcross@amsl.com:

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add X-CSRFToken AJAX request header.
 - Legacy-Id: 7407
Note: SVN reference [7398] has been migrated to Git commit 79a77b4c568af19e1953a11bd8b0fe0a12035e6d
This commit is contained in:
Henrik Levkowetz 2014-03-04 21:29:16 +00:00
parent e1efe561da
commit d499855aa4
1 changed files with 49 additions and 0 deletions
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49
static/secretariat/js/utils.js
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@ -1,5 +1,54 @@
/* utils.js - utility functions */
// set X-CSRFToken AJAX request header
// from https://docs.djangoproject.com/en/dev/ref/contrib/csrf/#ajax
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));
}
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));
}
$.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("X-CSRFToken", csrftoken);
}
}
});
// end set csrftoken
//returns the requested GET parameter from the URL
function get_param(param) {