src/AppBundle/Controller/FileController.php

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<?php

namespace AppBundle\Controller;

use AppBundle\Common\Exception\FileToolkitException;
use Biz\Common\CommonException;
use Biz\Content\FileException;
use Biz\Content\Service\FileService;
use Symfony\Component\HttpFoundation\File\File;
use Symfony\Component\HttpFoundation\Request;
use AppBundle\Util\UploadToken;
use AppBundle\Common\FileToolkit;
use AppBundle\Common\ArrayToolkit;

class FileController extends BaseController
{
    public function uploadAction(Request $request)
    {
        list($groupCode, $type) = $this->tryUploadFile($request);

        if (!$this->isGroup($groupCode)) {
            return $this->createMessageResponse('error', '参数不正确');
        }

        $file = $request->files->get('file');
        if ($type == 'image') {
            if (!FileToolkit::isImageFile($file)) {
                $this->createNewException(FileToolkitException::NOT_IMAGE());
            }
        } else {
            $this->createNewException(FileException::FILE_TYPE_ERROR());
        }

        $record = $this->getFileService()->uploadFile($groupCode, $file);
        $record['url'] = $this->get('web.twig.extension')->getFilePath($record['uri']);
        $request->getSession()->set('fileId', $record['id']);

        return $this->createJsonResponse($record);
    }

    public function cropImgAction(Request $request)
    {
        $options = $request->request->all();
        if (empty($options['group'])) {
            $options['group'] = 'default';
        }

        if (!$this->isGroup($options['group'])) {
            return $this->createMessageResponse('error', '参数不正确');
        }

        $fileId = $request->getSession()->get('fileId');
        if (empty($fileId)) {
            return $this->createMessageResponse('error', '参数不正确');
        }

        $record = $this->getFileService()->getFile($fileId);
        if (empty($record)) {
            return $this->createMessageResponse('error', '文件不存在');
        }