介绍：
为了将多个文件上传到我使用的服务器：
Symfony v3.2.6
> OneUpUploaderBundle
> OneUpFlysystemBundle
> Plupload file uploading library jQuery UI Widget版本
注1：
请注意：此配置适用于单个和多个文件上传,但在抛出ValidationException时不会返回任何响应！
笔记2：
为了知道文件的上传成功,我添加了对我的UploadListener部分的响应：
public function onUpload(PreUploadEvent $event)
{
$file = $event->getFile();
$response = $event->getResponse();
$message = [
'error' => 'none'
];
$response->addToOffset($message,array('files'));
}
它给出以下响应(如果文件上传没有错误)
response: {"files":[{"error": "none"}]}
目标：
当抛出ValidationException时,我想收到相应的错误响应.
例：
response: {"files":[{"error": "error code"}]}
问题：
我使用验证器来限制一些可上传的文件.
目前 – 验证器限制的文件未上传(正在抛出ValidationException).然而,在这种情况下,客户端/浏览器没有响应.
我不知道如何使Plupload和Symfony3在ValidationException之后返回客户端/浏览器.
码：
验证监听器：
<?PHP
namespace AppBundle\EventListener;
use Oneup\UploaderBundle\Event\ValidationEvent;
use Oneup\UploaderBundle\Uploader\Exception\ValidationException;
use Symfony\Component\DependencyInjection\ContainerInterface as Container;
class AllowedMimeTypeValidationListener
{
/**
* @var Container
*/
private $container;
private $file_extension_array = [];
private $file_type_array = [];
private $banned_files = [];
public function __construct(Container $container)
{
$this->container = $container;
}
public function onValidate(ValidationEvent $event)
{
$ultra_helpers = $this->container->get('app.ultra_helpers');
$ultra_text = $this->container->get('app.ultra_text');
array_push($this->file_extension_array,'.gif');
array_push($this->file_extension_array,'.jpg');
array_push($this->file_extension_array,'.jpeg');
array_push($this->file_extension_array,'.png');
array_push($this->file_extension_array,'.zip');
array_push($this->file_extension_array,'.7z');
array_push($this->file_extension_array,'.pdf');
array_push($this->file_extension_array,'.bin');
array_push($this->file_extension_array,'.txt');
array_push($this->file_type_array,'image/gif');
array_push($this->file_type_array,'image/jpg');
array_push($this->file_type_array,'image/jpeg');
array_push($this->file_type_array,'image/png');
array_push($this->file_type_array,'application/zip');
array_push($this->file_type_array,'application/x-7z-compressed');
array_push($this->file_type_array,'application/pdf');
array_push($this->file_type_array,'application/octet-stream');
array_push($this->file_type_array,'text/plain');
array_push($this->banned_files,'do_not_allow_me_1.txt');
array_push($this->banned_files,'do_not_allow_me_2.txt');
array_push($this->banned_files,'do_not_allow_me_3.txt');
$file = $event->getFile();
$file_extension = '.'. $file->getExtension();
$file_mime_type = $file->getMimeType();
$full_file_name = $file->getClientOriginalName()
if (in_array($full_file_name,$this->banned_files))
{
throw new ValidationException('error.file_exists');
}
// Is file mime type the same as extension mime type
$mime_type_position = array_search($file_extension,$this->file_extension_array);
if ($mime_type_position !== false)
{
$mime_type_by_extension = $this->file_type_array[$mime_type_position];
if ($mime_type_by_extension !== $file_mime_type)
{
throw new ValidationException('error.mime_type_mismatch');
}
}
// Is file type not in activated file type array
if (!in_array($file_mime_type,$this->file_type_array))
{
throw new ValidationException('error.forbidden_mime_type');
}
}
}
带有JavaScript的Twig模板：
{% extends 'base.html.twig' %}
{% block stylesheets %}
{{ parent() }}
<link type="text/css" rel="stylesheet" href="{{ asset('js/plupload/jquery-ui-1.12.1/jquery-ui.css') }}" />
<link type="text/css" rel="stylesheet" href="{{ asset('js/plupload/jquery.ui.plupload/css/jquery.ui.plupload.css') }}" media="screen" />
{% endblock %}
{% block content %}
<div id="Box-upload">
<div id="uploader">
<p>Your browser doesn't have HTML5 support.</p>
</div>
</div>
{% endblock %}
{% block javascripts %}
<script type="text/javascript" src="{{ asset('js/browserplus/browserplus.js') }}"></script>
<script type="text/javascript" src="{{ asset('js/plupload/plupload.full.min.js') }}"></script>
<script type="text/javascript" src="{{ asset('js/jquery-2.2.4.js') }}"></script>
<script type="text/javascript" src="{{ asset('js/plupload/jquery-ui-1.12.1/jquery-ui.js') }}"></script>
<script type="text/javascript" src="{{ asset('js/plupload/jquery.ui.plupload/jquery.ui.plupload.js') }}"></script>
<script type="text/javascript" src="{{ asset('js/plupload/i18n/lv.js') }}"></script>
<script type="text/javascript">
'use strict';
$(function()
{
var uploader;
uploader = $("#uploader");
uploader.plupload(
{
// General settings
runtimes: 'html5',url: "{{ oneup_uploader_endpoint('gallery') }}",multi_selection: true,// Maximum file size
max_file_size: '5mb',chunk_size: '5mb',// Specify what files to browse for
filters: [
{title: "Binary files",extensions: "bin"},{title: "Image files",extensions: "gif,jpg,jpeg,png"},{title: "Media files",extensions: "avi"},{title: "Pdf files",extensions: "pdf"},{title: "Text files",extensions: "txt"},{title: "Zip files",extensions: "zip,7z"}
],// Rename files by clicking on their titles
rename: true,// Sort files
sortable: true,// Enable ability to drag'n'drop files onto the widget (currently only HTML5 supports that)
dragdrop: true,// Views to activate
views: {
list: true,thumbs: false,// Show thumbs
active: 'list'
}
});
var $uploader = uploader.plupload('getUploader');
// Add Clear Button
var $button = $("<button>"+ plupload.translate("Clear list") + "</button>").button({icons: {primary: "ui-icon-trash"}}).button("disable").appendTo('.plupload_buttons');
// Clear Button Action
$button.click(function()
{
removeErrorMessages();
$uploader.splice();
$(".plupload_filelist_content").html('');
$button.button("disable");
return true;
});
// Clear Button Toggle Enabled
$uploader.bind('QueueChanged',function ()
{
if ($uploader.files.length > 0)
{
$button.button("enable");
}
else
{
$button.button("disable");
}
});
// Clear Button Toggle Hidden
$uploader.bind('StateChanged',function ()
{
if ($uploader.state === plupload.STARTED)
{
$button.hide();
}
else
{
$button.show();
}
});
// Clear Button Toggle Hidden
$uploader.bind('browse',function ()
{
removeErrorMessages();
$uploader.splice();
});
$uploader.bind('FileUploaded',function(up,file,info)
{
var response;
response = jQuery.parseJSON(info.response);
console.log("-- next is response --");
console.log(response);
up.trigger("error",{message: "Fails: "+ file.name +" jau atrodas šajā mapē!<br> Augšupielādējamais fails <i>netika</i> saglabāts!",code: 12345,details: "Testing errors"});
$("#"+ file.id).addClass("duplicateFile");
});
function removeErrorMessages()
{
$(".ui-state-error").remove();
}
});
</script>
{% endblock %}
UPDATE
添加当前代码的问题
PluploadErrorHandler.PHP
<?PHP
namespace Oneup\UploaderBundle\Uploader\ErrorHandler;
use Exception;
use Oneup\UploaderBundle\Uploader\Response\AbstractResponse;
class PluploadErrorHandler implements ErrorHandlerInterface
{
public function addException(AbstractResponse $response,Exception $exception)
{
$message = $exception->getMessage();
$response->addToOffset(array('error' => $message),array('files'));
}
}
errorhandler.xml
<?xml version="1.0" encoding="utf-8" ?>
<container xmlns="http://symfony.com/schema/dic/services" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
<parameters>
<parameter key="oneup_uploader.error_handler.noop.class">Oneup\UploaderBundle\Uploader\ErrorHandler\NoopErrorHandler</parameter>
<parameter key="oneup_uploader.error_handler.blueimp.class">Oneup\UploaderBundle\Uploader\ErrorHandler\BlueimpErrorHandler</parameter>
<parameter key="oneup_uploader.error_handler.dropzone.class">Oneup\UploaderBundle\Uploader\ErrorHandler\DropzoneErrorHandler</parameter>
<parameter key="oneup_uploader.error_handler.plupload.class">Oneup\UploaderBundle\Uploader\ErrorHandler\PluploadErrorHandler</parameter>
</parameters>
<services>
<service id="oneup_uploader.error_handler.noop" class="%oneup_uploader.error_handler.noop.class%" public="false" />
<service id="oneup_uploader.error_handler.blueimp" class="%oneup_uploader.error_handler.blueimp.class%" public="false">
<argument type="service" id="translator"/>
</service>
<service id="oneup_uploader.error_handler.dropzone" class="%oneup_uploader.error_handler.dropzone.class%" public="false" />
<service id="oneup_uploader.error_handler.plupload" class="%oneup_uploader.error_handler.plupload.class%" public="false" />
<service id="oneup_uploader.error_handler.fineuploader" class="%oneup_uploader.error_handler.noop.class%" public="false" />
<service id="oneup_uploader.error_handler.uploadify" class="%oneup_uploader.error_handler.noop.class%" public="false" />
<service id="oneup_uploader.error_handler.yui3" class="%oneup_uploader.error_handler.noop.class%" public="false" />
<service id="oneup_uploader.error_handler.fancyupload" class="%oneup_uploader.error_handler.noop.class%" public="false" />
<service id="oneup_uploader.error_handler.mooupload" class="%oneup_uploader.error_handler.noop.class%" public="false" />
<service id="oneup_uploader.error_handler.custom" class="%oneup_uploader.error_handler.noop.class%" public="false" />
</services>
</container>
题：
我失踪了什么
解决方法
对不起,以前的版本不正确.
OneupUploaderBundle捕获控制器中的异常并将其传递给error_handler服务.
class PluploadController extends AbstractChunkedController
{
public function upload()
{
...
foreach ($files as $file) {
try {
$chunked ?
$this->handleChunkedUpload($file,$response,$request) :
$this->handleUpload($file,$request)
;
} catch (UploadException $e) {
$this->errorHandler->addException($response,$e);
}
}
return $this->createSupportedJsonResponse($response->assemble());
}
您应该检查应用程序使用哪个错误处理程序.默认情况下,Plupload看起来像软件包设置为NoopErrorHandler,与您的异常无关.
Oneup\UploaderBundle\Uploader\ErrorHandler\NoopErrorHandler
public function addException(AbstractResponse $response,Exception $exception)
{
// noop
}
errorhandler.xml
<service id="oneup_uploader.error_handler.plupload" class="%oneup_uploader.error_handler.noop.class%" public="false" />
要获得所需形状的响应,您应该设置BlueimpErrorHandler或define a custom handler.
Oneup\UploaderBundle\Uploader\ErrorHandler\BlueimpErrorHandler
public function addException(AbstractResponse $response,Exception $exception)
{
$message = $this->translator->trans($exception->getMessage(),array(),'OneupUploaderBundle');
$response->addToOffset(array('error' => $message),array('files'));
}
OT：在验证器中使用异常,这样会给用户带来不好的体验.用户应该看到上传文件的所有错误,而不仅仅是第一个.您应该收集所有错误,然后抛出异常.例如：
...
if (in_array($full_file_name,$this->banned_files))
{
throw new ValidationException('error.file_exists');
}
$errors = [];
// Is file mime type the same as extension mime type
$mime_type_position = array_search($file_extension,$this->file_extension_array);
if ($mime_type_position !== false)
{
$mime_type_by_extension = $this->file_type_array[$mime_type_position];
if ($mime_type_by_extension !== $file_mime_type)
{
$errors[] = 'error.mime_type_mismatch';
}
}
// Is file type not in activated file type array
if (!in_array($file_mime_type,$this->file_type_array))
{
$errors[] = 'error.forbidden_mime_type';
}
if (empty($errors)) {
throw new ValidationException(implode(',',$errors));
}
...