/**
* @param $code string Auth code returned by qq
* @return array if success return access_token, expire_in and refresh_token
* if failed return error code and description
*
'access_token' => string '313F00C54AC512A7ED1C664EE198B615' (length=32)
'expires_in' => string '7776000' (length=7)
'refresh_token' => string 'A5D30D009A349AA8197C86DECEC77BD8' (length=32)
'code' => int 0
*/
public function getAccessToken($code = "")
{
if (empty($code) && empty($this->refreshToken)) {
Logger::ERROR("Try to get access token, but neither code nor refresh token was empty.", "", "", "qq_sdk_err");
return ['code' => -1, 'desc' => "neither code nor refresh token was empty."];
}
$url = "https://graph.qq.com/oauth2.0/token";
$isRefresh = !empty($this->refreshToken);
$params = ['grant_type' => $isRefresh ? 'refresh_token' : 'authorization_code', 'client_id' => $this->appId, 'client_secret' => $this->appKey, 'redirect_uri' => $this->callback];
if ($isRefresh) {
$params['refresh_token'] = $this->refreshToken;
} else {
$params['code'] = $code;
}
$response = @file_get_contents($url . "?" . http_build_query($params));
$result = [];
if (strpos($response, "callback") !== false) {
$lpos = strpos($response, "(");
$rpos = strrpos($response, ")");
$response = substr($response, $lpos + 1, $rpos - $lpos - 1);
$msg = json_decode($response);
if (isset($msg->error)) {
$result['code'] = $msg->error;
$result['desc'] = $msg->error_description;
return $result;
}
}
parse_str($response, $result);
$result['code'] = 0;
$this->accessToken = $result['access_token'];
$this->refreshToken = $result['refresh_token'];
$result['expires_in'] += time();
$user = self::getSelfInfo();
if (!$user['openid']) {
return $user;
}
$result['uid'] = $user['openid'];
UserApi::saveAccessToken($result);
return $result;
}
