我有这个简单的Like按钮,当与@csrf_exempt
一起使用时效果很好:
模板
<p id="like_count"> {{ topic.likes }}</p>
<span data-type="topic" title="Like"> {% csrf_token %}
<i class="fa fa-thumbs-up" id="liket" name="{{topic.id}}">
Ajax
$(function(){
$('#liket').click(function(){
$.ajax({
type: "POST",
url: "/like/",
data: {
'topic_id': $(this).attr('name'),
'csrfmiddlewaretoken': '{{csrf_token}}'
},
success: tlikeSuccess,
dataType: 'html'
});
});
});
function tlikeSuccess(data, textStatus, jqXHR)
{
$('#like_count').html(data);
}
和观点:
#@csrf_exempt
def topic_like(request):
args = {}
if request.method == 'POST':
user = request.POST.get('user')
lu= request.user #User.objects.get(username= user)
topic_id = int(request.POST.get('topic_id'))
try:
liked_topic = Topic.objects.get(id = topic_id)
except:
liked_topic = None
if TopicLike.objects.filter(liker=request.user.id, topic=topic_id).exists():
liked_topic.likes -=1
liked_topic.save()
TopicLike.objects.filter(topic=topic_id, liker=request.user.id).delete()
else:
liked_topic.likes +=1
liked_topic.save()
newliker = TopicLike(topic=topic_id, liker=request.user.id)
newliker.save()
#args.update(csrf(request))
args['likes'] = str(liked_topic.likes)
return render(request, 'ajax_like.html', args)
但是,我不喜欢忽略CSRF的这种解决方法,因为它可能很脆弱。 另一方面,我无法将新的CSRF令牌返回给模板,因此我感谢您将CSRF集成到此按钮中的提示。
答案 0 :(得分:4)
Django在其docs中定义了实际设置AJAX请求的头,同时保护CSRF令牌不会在jQuery 1.5.1和更新版本中使用settings.crossDomain
发送到其他域。
获取令牌:
// using jQuery
function getCookie(name) {
var cookieValue = null;
if (document.cookie && document.cookie != '') {
var cookies = document.cookie.split(';');
for (var i = 0; i < cookies.length; i++) {
var cookie = jQuery.trim(cookies[i]);
// Does this cookie string begin with the name we want?
if (cookie.substring(0, name.length + 1) == (name + '=')) {
cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
break;
}
}
}
return cookieValue;
}
var csrftoken = getCookie('csrftoken');
在标题中设置CSRFToken:
function csrfSafeMethod(method) {
// these HTTP methods do not require CSRF protection
return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
}
$.ajaxSetup({
beforeSend: function(xhr, settings) {
if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
xhr.setRequestHeader("X-CSRFToken", csrftoken);
}
}
});
同时尝试使用此方法在此SO link.
上给出的每个AJAX请求中嵌入CSRF令牌$(function () {
$.ajaxSetup({
headers: { "X-CSRFToken": getCookie("csrftoken") }
});
});
答案 1 :(得分:0)
您可以使用javascript手动添加csrf令牌。