使用WAF后，用户访问网站的是通过WAF服务器间接访问网站服务器的，Phpwind论坛可能会在获取用户IP时，直接获取WAF的IP，而不能直接获取到用户的真实IP，在此提出一些解决方案。
phpwind 8.7按照如下代码，修改1个文件即可（9.0参照下文）:
1、修改 /require/common.php搜索“HTTP_CLIENT_IP”，找到如下代码。
function pwGetIp() { global $pwServer, $db_xforwardip; if ($db_xforwardip) { if ($pwServer['HTTP_X_FORWARDED_FOR'] && $pwServer['REMOTE_ADDR']) { if (strstr($pwServer['HTTP_X_FORWARDED_FOR'], ',')) { $x = explode(',', $pwServer['HTTP_X_FORWARDED_FOR']); $pwServer['HTTP_X_FORWARDED_FOR'] = trim(end($x)); } if (preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $pwServer['HTTP_X_FORWARDED_FOR'])) {return $pwServer['HTTP_X_FORWARDED_FOR'];} } elseif ($pwServer['HTTP_CLIENT_IP'] && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $pwServer['HTTP_CLIENT_IP'])) {return $pwServer['HTTP_CLIENT_IP'];} } $db_xforwardip = 0; if (preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $pwServer['REMOTE_ADDR'])) {return $pwServer['REMOTE_ADDR'];} return 'Unknown';}
2、将其修改为如下代码，即删除上面代码中的第十行除第一个"}"外，以及删除第13行内容:
function pwGetIp() { global $pwServer, $db_xforwardip; $ip = $_SERVER['REMOTE_ADDR']; if (isset($_SERVER['HTTP_X_REAL_FORWARDED_FOR']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_X_REAL_FORWARDED_FOR'])) { $ip = $_SERVER['HTTP_X_REAL_FORWARDED_FOR']; } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip = $_SERVER['HTTP_X_FORWARDED_FOR']; } elseif (isset($_SERVER['HTTP_CLIENT_IP']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_CLIENT_IP'])) { $ip = $_SERVER['HTTP_CLIENT_IP']; } return $ip;}
phpwind 9.0按照如下代码，修改1个文件即可：
1、打开 "/src/aCloud/system/core/ACloudSysCoreCommon.php"，修改前建议备份本文件。
2、查找“get_Ip()”，找到如下代码：
public static function getIp() { static $ip = null; if (! $ip) { if (isset ( $_SERVER ['HTTP_X_FORWARDED_FOR'] ) && $_SERVER ['HTTP_X_FORWARDED_FOR'] && $_SERVER ['REMOTE_ADDR']) { if (strstr ( $_SERVER ['HTTP_X_FORWARDED_FOR'], ',' )) { $x = explode ( ',', $_SERVER ['HTTP_X_FORWARDED_FOR'] ); $_SERVER ['HTTP_X_FORWARDED_FOR'] = trim ( end ( $x ) ); } if (preg_match ( '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER ['HTTP_X_FORWARDED_FOR'] )) { $ip = $_SERVER ['HTTP_X_FORWARDED_FOR']; } } elseif (isset ( $_SERVER ['HTTP_CLIENT_IP'] ) && $_SERVER ['HTTP_CLIENT_IP'] && preg_match ( '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER ['HTTP_CLIENT_IP'] )) { $ip = $_SERVER ['HTTP_CLIENT_IP']; } if (! $ip && preg_match ( '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER ['REMOTE_ADDR'] )) { $ip = $_SERVER ['REMOTE_ADDR']; } ! $ip && $ip = 'Unknown'; } return $ip; }
3、将以上代码修改为：
public static function getIp() { $ip = $_SERVER['REMOTE_ADDR']; if (isset($_SERVER['HTTP_X_REAL_FORWARDED_FOR']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_X_REAL_FORWARDED_FOR'])) { $ip = $_SERVER['HTTP_X_REAL_FORWARDED_FOR']; } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip = $_SERVER['HTTP_X_FORWARDED_FOR']; } elseif (isset($_SERVER['HTTP_CLIENT_IP']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_CLIENT_IP'])) { $ip = $_SERVER['HTTP_CLIENT_IP']; } return $ip;}