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Fixed #15284 - improved example jQuery code for adding X-CSRF-Token 

Using the ajaxSend event is better than beforeSend, because the beforeSend
callback can have only one value, which makes it painful if it is needed by
multiple bits of javascript.

Thanks to LukeMaurer for report and initial patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@15515 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Luke Plant 2011-02-12 23:37:35 +00:00
parent ee06020240
commit d068a04244
1 changed files with 17 additions and 19 deletions
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36
docs/ref/contrib/csrf.txt
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@ -90,31 +90,29 @@ every POST request. For this reason, there is an alternative method: on each
XMLHttpRequest, set a custom `X-CSRFToken` header to the value of the CSRF XMLHttpRequest, set a custom `X-CSRFToken` header to the value of the CSRF
token. This is often easier, because many javascript frameworks provide hooks token. This is often easier, because many javascript frameworks provide hooks
that allow headers to be set on every request. In jQuery, you can use the that allow headers to be set on every request. In jQuery, you can use the
``beforeSend`` hook as follows: ``ajaxSend`` event as follows:
.. code-block:: javascript .. code-block:: javascript
$.ajaxSetup({ $('html').ajaxSend(function(event, xhr, settings) {
beforeSend: function(xhr, settings) { function getCookie(name) {
function getCookie(name) { var cookieValue = null;
var cookieValue = null; if (document.cookie && document.cookie != '') {
if (document.cookie && document.cookie != '') { var cookies = document.cookie.split(';');
var cookies = document.cookie.split(';'); for (var i = 0; i < cookies.length; i++) {
for (var i = 0; i < cookies.length; i++) { var cookie = jQuery.trim(cookies[i]);
var cookie = jQuery.trim(cookies[i]); // Does this cookie string begin with the name we want?
// Does this cookie string begin with the name we want? if (cookie.substring(0, name.length + 1) == (name + '=')) {
if (cookie.substring(0, name.length + 1) == (name + '=')) { cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
cookieValue = decodeURIComponent(cookie.substring(name.length + 1)); break;
break;
}
} }
} }
return cookieValue;
}
if (!(/^http:.*/.test(settings.url) || /^https:.*/.test(settings.url))) {
// Only send the token to relative URLs i.e. locally.
xhr.setRequestHeader("X-CSRFToken", getCookie('csrftoken'));
} }
return cookieValue;
}
if (!(/^http:.*/.test(settings.url) || /^https:.*/.test(settings.url))) {
// Only send the token to relative URLs i.e. locally.
xhr.setRequestHeader("X-CSRFToken", getCookie('csrftoken'));
} }
}); });