src/AppBundle/Controller/LTC/Api.php

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<?php

namespace AppBundle\Controller\LTC;

class Api
{
    public function getCourse($courseId)
    {
        return $this->request('get', 'http://www.esdev.com/api/courses/'.$courseId);
    }

    public function getUser($nickname)
    {
        return $this->request('get', "http://www.esdev.com/api/users/{$nickname}?identifyType=nickname");
    }

    private function request($method, $url, $params = array(), $conditions = array())
    {
        $conditions['userAgent'] = isset($conditions['userAgent']) ? $conditions['userAgent'] : '';
        $conditions['connectTimeout'] = isset($conditions['connectTimeout']) ? $conditions['connectTimeout'] : 10;
        $conditions['timeout'] = isset($conditions['timeout']) ? $conditions['timeout'] : 10;

        $curl = curl_init();

        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_USERAGENT, $conditions['userAgent']);
        curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, $conditions['connectTimeout']);
        curl_setopt($curl, CURLOPT_TIMEOUT, $conditions['timeout']);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_HEADER, 1);
        curl_setopt($curl, CURLOPT_HTTPHEADER, ['Accept: application/vnd.edusoho.v2+json']);

        if ('POST' == $method) {
            curl_setopt($curl, CURLOPT_POST, 1);
            //TODO
            curl_setopt($curl, CURLOPT_POSTFIELDS, $params);
        } elseif ('PUT' == $method) {
            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'PUT');
            curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($params));
        } elseif ('DELETE' == $method) {
            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'DELETE');
            curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($params));
        } elseif ('PATCH' == $method) {
            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'PATCH');
            curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($params));
        } else {
            if (!empty($params)) {
                $url = $url.(strpos($url, '?') ? '&' : '?').http_build_query($params);
            }
        }

        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLINFO_HEADER_OUT, true);

        $response = curl_exec($curl);
        $curlinfo = curl_getinfo($curl);

        $header = substr($response, 0, $curlinfo['header_size']);
        $body = substr($response, $curlinfo['header_size']);