<?php
// must be run within Dokuwiki
if (!defined('DOKU_INC')) die();

const SESSION_KEY = "위에 적었던 그 문자열을 복사 붙여넣기";

class auth_plugin_authxe extends \dokuwiki\Extension\AuthPlugin
{
  public function __construct()
  {
    parent::__construct();
    $this->cando['external'] = true;
    $this->cando['logout'] = false;
  }

  function trustExternal($user, $pass, $sticky = false)
  {
    global $USERINFO;
    $baseDir = getBaseURL(true);
    $targetPath = $baseDir . 'userinfo.php';//만약 위 파일의 경로가 다르다면 여기도 고쳐준다.

    $arrContextOptions = array(
      "ssl" => array(
        "verify_peer" => true,
      ),
      "http" => array(
        'header' => "Accept-language: ko\r\nCookie: ".session_name()."=".session_id()."\r\n"
      )
    );

    $time = ''.time();
    $hash = hash('sha256', SESSION_KEY.$time, false);

    $result = @file_get_contents("{$targetPath}?time={$time}&hash={$hash}", false, stream_context_create($arrContextOptions));
    if(!$result){
      return false;
    }
    $logged_info = json_decode($result);
    if(!$logged_info->result){
      throw new \RuntimeException($logged_info->reason);
    }

    if(!$logged_info->user_id){
      return false;
    }

    $USERINFO['name'] = $logged_info->name;
    $USERINFO['mail'] = $logged_info->mail;
    $USERINFO['grps'] = $logged_info->grps;
    $_SERVER['REMOTE_USER'] = $logged_info->user_id;
    $_SESSION[DOKU_COOKIE]['auth']['user'] = $logged_info->user_id;
    $_SESSION[DOKU_COOKIE]['auth']['info'] = $USERINFO;
    return true;
  }
}