Laravel TokenMismatchException和dropzone

Question

我正在嘗試通過dropzone上傳圖片，但是即使在需要的地方添加csrf令牌的情況下，我也遇到了tokenmismatch錯誤，我感到非常絕望...

我的表格

{!! Form::open(['route' => 'photo.upload', 'id' => 'hello', 'method' => 'POST', 'class' => 'dropzone no-margin dz-clickable']) !!}
    <div class="dz-default dz-message"><span>Drop files here to upload</span></div></form>
{!! Form::close() !!}

我的劇本

Dropzone.autoDiscover = false;

Dropzone.options.hello = {
    paramName: "file", // The name that will be used to transfer the file
    maxFilesize: 5, // MB
    parallelUploads: 2, //limits number of files processed to reduce stress on server
    addRemoveLinks: true,
    headers: {
        'X-CSRF-Token': $('meta[name="csrf-token"]').attr('content'),
    },
    accept: function(file, done) {
        // TODO: Image upload validation
        done();
    },
    sending: function(file, xhr, formData) {

        // Pass token. You can use the same method to pass any other values as well such as a id to associate the image with for example.
        formData.append("_token", $('input[name="_token"]').val() ); // Laravel expect the token post value to be named _token by default
    },
    init: function() {
        this.on("success", function(file, response) {
            // On successful upload do whatever :-)
        });
    }
};

// Manually init dropzone on our element.
var myDropzone = new Dropzone("#hello", {
    url: $('#hello').attr('action')
});

請求頭

...
X-CSRF-Token:P4wc9NVVZJe1VjalPwO6d6WQXZ9eEqPd84ICpToG
...

請求有效載荷

------WebKitFormBoundarySKMUFNO6dbgzeQVK
Content-Disposition: form-data; name="_token"

P4wc9NVVZJe1VjalPwO6d6WQXZ9eEqPd84ICpToG
------WebKitFormBoundarySKMUFNO6dbgzeQVK
Content-Disposition: form-data; name="_token"

P4wc9NVVZJe1VjalPwO6d6WQXZ9eEqPd84ICpToG
------WebKitFormBoundarySKMUFNO6dbgzeQVK
Content-Disposition: form-data; name="file"; filename="Screen Shot 2016-01-14 at 18.27.40.png"
Content-Type: image/png


------WebKitFormBoundarySKMUFNO6dbgzeQVK--

當我查看生成的表單時，這里是csrf字段

<input name="_token" type="hidden" value="P4wc9NVVZJe1VjalPwO6d6WQXZ9eEqPd84ICpToG">

您是否知道即使我將crsf令牌放置在應有的位置也為什么不起作用？

感謝您的時間。

Answer 1

只需將隱藏字段放在表單中即可

<input type="hidden" name="_token" value="{{csrf_token()}}">

您可以通過使用ajax調用傳遞令牌的值來使其變得不同，例如

$(function () {
    $.ajaxSetup({
        headers: { 'X-CSRF-TOKEN': $('meta[name="_token"]').attr('content') }
    });
});

Answer 2

而不是創建有點臟的新元素。 您可以將其包含在dropzone的手動init中。

var myDropzone = new Dropzone("#hello", { 
            url: $('#hello').attr('action'),
            headers: {
               'x-csrf-token': document.querySelectorAll('meta[name=csrf-token]')[0].getAttributeNode('content').value,
            }
          });

有關與laravel dropzone的更詳細的集成，您可以參考本教程在Laravel 5應用程序中集成Dropzone.js。