src/AppBundle/Controller/LoginController.php

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<?php

namespace AppBundle\Controller;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Security\Core\Security;
use AppBundle\Component\OAuthClient\OAuthClientFactory;
use Endroid\QrCode\QrCode;
use Symfony\Component\HttpFoundation\Response;
use Biz\User\CurrentUser;

class LoginController extends BaseController
{
    const FACE_TOKEN_STATUS_SUCCESS = 'successed'; //认证成功
    const FACE_TOKEN_STATUS_CREATED = 'created'; //已创建
    const FACE_TOKEN_STATUS_EXPIRED = 'expired'; //已过期
    const FACE_TOKEN_STATUS_PROCESSING = 'processing'; //认证中
    const FACE_TOKEN_STATUS_FAILURES = 'failures'; //多次认证失败

    public function qrcodeAction(Request $request)
    {
        $host = $request->getSchemeAndHttpHost();
        $token = $this->getTokenService()->makeToken(
            'face_login',
            array(
                'userId' => 0,
                'data' => array(),
                'times' => 0,
                'duration' => 240,
            )
        );
        $url = $host.'/h5/index.html#/login/qrcode?loginToken='.$token['token'].'&host='.$host;

        $qrCode = new QrCode();
        $qrCode->setText($url);
        $qrCode->setSize(150);
        $qrCode->setPadding(10);
        $img = $qrCode->get('png');

        return $this->createJsonResponse(array(
            'qrcode' => 'data:image/png;base64,'.base64_encode($img),
            'token' => $token['token'],
        ));
    }

    public function faceTokenAction(Request $request, $token)
    {
        $faceLoginToken = $this->getTokenService()->verifyToken('face_login', $token);

        if (!$faceLoginToken) {
            $response = array(
                'status' => self::FACE_TOKEN_STATUS_EXPIRED,
            );
        } elseif (empty($faceLoginToken['data'])) {
            $response = array(
                'status' => self::FACE_TOKEN_STATUS_CREATED,
            );
        } elseif (!empty($faceLoginToken['data']['lastFailed'])) {
            $response = array(
                'status' => self::FACE_TOKEN_STATUS_FAILURES,