zyx0814-dzzoffice/avatar.php

<?php
/*
 * @copyright   Leyun internet Technology(Shanghai)Co.,Ltd
 * @license     http://www.dzzoffice.com/licenses/license.txt
 * @package     DzzOffice
 * @link        http://www.dzzoffice.com
 * @author      zyx(zyx@dzz.cc)
 */
error_reporting(0);
define('SITEURL', strtolower(($_SERVER['HTTPS'] == 'on' ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST'] . substr($_SERVER['PHP_SELF'], 0, strrpos($_SERVER['PHP_SELF'], '/'))));

$uid = $_GET['uid'] ?? 0;
$size = $_GET['size'] ?? '';
$random = $_GET['random'] ?? '';
$type = $_GET['type'] ?? '';
$check = $_GET['check_file_exists'] ?? '';

$avatar = './data/avatar/' . get_avatar($uid, $size, $type);
if (file_exists(dirname(__FILE__) . '/' . $avatar)) {
    if ($check) {
        echo 1;
        exit;
    }
    $random = !empty($random) ? rand(1000, 9999) : '';
    $avatar_url = empty($random) ? $avatar : $avatar . '?random=' . $random;
} else {
    if ($check) {
        echo 0;
        exit;
    }
    $size = in_array($size, array('big', 'middle', 'small')) ? $size : 'middle';
    $avatar_url = 'static/image/avatar/noavatar_' . $size . '.gif';
}

if (empty($random)) {
    header("HTTP/1.1 301 Moved Permanently");
    header("Last-Modified:" . date('r'));
    header("Expires: " . date('r', time() + 86400));
}

header('Location: ' . SITEURL . '/' . $avatar_url);
exit;

function get_avatar($uid, $size = 'middle', $type = '') {
    $size = in_array($size, array('big', 'middle', 'small')) ? $size : 'middle';
    $uid = abs(intval($uid));
    $uid = sprintf("%09d", $uid);
    $dir1 = substr($uid, 0, 3);
    $dir2 = substr($uid, 3, 2);
    $dir3 = substr($uid, 5, 2);
    $typeadd = $type == 'real' ? '_real' : '';
    return $dir1 . '/' . $dir2 . '/' . $dir3 . '/' . substr($uid, -2) . $typeadd . "_avatar_$size.jpg";
}