// 全局授权标记(混淆) $GLOBALS['_0xAUTH_VALID'] = false; $GLOBALS['_0xAUTH_KEY'] = null; // 授权验证核心 function _0xAuthCore() { static $_0xchecked = false; if($_0xchecked) return $GLOBALS['_0xAUTH_VALID']; $_0xchecked = true; // 授权服务器地址(支持HTTPS和HTTP自动降级) $_0x4f2a_https = base64_decode('aHR0cHM6Ly81Zy5iYWlkdWRhaWZhLmNuL2F1dGhfc2VydmVyLnBocA=='); $_0x4f2a_http = base64_decode('aHR0cDovLzVnLmJhaWR1ZGFpZmEuY24vYXV0aF9zZXJ2ZXIucGhw'); $_0x3d1b = $_SERVER['SERVER_ADDR'] ?? $_SERVER['LOCAL_ADDR'] ?? @gethostbyname(@gethostname()); $_0x2c8e = $_SERVER['DOCUMENT_ROOT'] . '/runtime/.auth_' . md5($_0x3d1b . 'CORE') . '.dat'; if(!is_dir(dirname($_0x2c8e))) @mkdir(dirname($_0x2c8e), 0755, true); // 解密函数 $_0xdec = function($_0xd) { $_0xk = substr(md5($_SERVER['DOCUMENT_ROOT'] . 'PDF'), 0, 16); return @openssl_decrypt($_0xd, 'AES-128-ECB', $_0xk); }; // 加密函数 $_0xenc = function($_0xd) { $_0xk = substr(md5($_SERVER['DOCUMENT_ROOT'] . 'PDF'), 0, 16); return openssl_encrypt($_0xd, 'AES-128-ECB', $_0xk); }; // 读取缓存 if(file_exists($_0x2c8e)) { $_0xraw = @file_get_contents($_0x2c8e); $_0xdata = @json_decode($_0xdec($_0xraw), true); if($_0xdata && isset($_0xdata['v']) && $_0xdata['v'] === md5($_0x3d1b . 'CORE_V2')) { if(time() - ($_0xdata['t'] ?? 0) < 14400) { // 4小时缓存 if(isset($_0xdata['e']) && strtotime($_0xdata['e']) > time()) { $GLOBALS['_0xAUTH_VALID'] = true; $GLOBALS['_0xAUTH_KEY'] = md5($_0x3d1b . date('Ymd') . 'KEY'); return true; } } } } // 在线验证(先HTTPS,失败则HTTP) $_0xresp = ''; $_0xcode = 0; foreach([$_0x4f2a_http, $_0x4f2a_https] as $_0x4f2a) { // HTTP优先,HTTPS备用 $_0xurl = $_0x4f2a . '?domain=' . urlencode($_0x3d1b) . '&product=pdf_fan&v=3&t=' . time(); $_0xch = @curl_init(); if(!$_0xch) continue; curl_setopt_array($_0xch, [ CURLOPT_URL => $_0xurl, CURLOPT_RETURNTRANSFER => 1, CURLOPT_TIMEOUT => 5, CURLOPT_CONNECTTIMEOUT => 3, CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false, CURLOPT_USERAGENT => 'PDFCore/3.0', CURLOPT_HTTPHEADER => ['X-Auth-Core: ' . md5($_0x3d1b . date('YmdH'))] ]); $_0xresp = @curl_exec($_0xch); $_0xcode = @curl_getinfo($_0xch, CURLINFO_HTTP_CODE); @curl_close($_0xch); if(!empty($_0xresp) && $_0xcode == 200) break; } // 网络降级 - 只允许短暂降级,不能无限期 if(empty($_0xresp) || $_0xcode != 200) { // 网络失败时,只有10分钟内的缓存才能通过 if(file_exists($_0x2c8e)) { $_0xraw = @file_get_contents($_0x2c8e); $_0xdata = @json_decode($_0xdec($_0xraw), true); if($_0xdata && time() - ($_0xdata['t'] ?? 0) < 600) { $GLOBALS['_0xAUTH_VALID'] = true; return true; } } return false; } $_0xresult = @json_decode($_0xresp, true); if(!$_0xresult || empty($_0xresult['auth'])) { @unlink($_0x2c8e); return false; } // 保存缓存 $_0xcache = [ 'v' => md5($_0x3d1b . 'CORE_V2'), 't' => time(), 'e' => $_0xresult['data']['expire_time'] ?? date('Y-m-d', strtotime('+1 year')) ]; @file_put_contents($_0x2c8e, $_0xenc(json_encode($_0xcache))); $GLOBALS['_0xAUTH_VALID'] = true; $GLOBALS['_0xAUTH_KEY'] = md5($_0x3d1b . date('Ymd') . 'KEY'); return true; } // 授权检查钩子 - 嵌入关键函数 function _0xRequireAuth($funcName = '') { if(!$GLOBALS['_0xAUTH_VALID']) { if(!_0xAuthCore()) { http_response_code(403); die('授权验证
程序未授权
请联系购买正版授权
授权咨询
QQ: 743043436
'); } } return true; } // 获取授权密钥(用于解密关键数据) function _0xGetAuthKey() { _0xRequireAuth(); return $GLOBALS['_0xAUTH_KEY'] ?? ''; } 百度霸屏哪家好 - pdf泛程序

百度霸屏哪家好

未分类 19.9 MB 277页 0次下载 1次浏览 2026-02-23 15:24:51
资源简介
百度霸屏哪家好 PDF文档下载,免费获取百度霸屏哪家好相关资料。
更多PDF资源