如何限制访问者的ip(PHPBB的代码)

如何限制访问者的ip(PHPBB的代码)Code:?php/****************************************************************************
admin_user_ban.php* ——————-* begin : Tuesday, Jul 31,
2001* copyright : (C) 2001 The phpBB Group* email :
[email]support@phpbb.com[/email]** $Id: admin_user_ban.php,v
1.21.2.2 2002/05/12 15:57:45 psotfx Exp
$*****************************************************************************//****************************************************************************
This file is part of the phpBB2 port to Nuke 6.0 (c) copyright 2002* by
Tom Nitzschner ([email]tom@toms-home.com[/email])* [url][/url]
(or [url])[/url]** As always, make a backup before messing with
anything. All code* release by me is considered sample code only. It
may be fully* functual, but you use it at your own risk, if you break
it,* you get to fix it too. No waranty is given or implied.** Please
post all questions/request about this port on [url][/url] first,*
then on my site. All original header code and copyright messages will be
maintained* to give credit where credit is due. If you modify this, the
only requirement is* that you also maintain all original copyright
messages. All my work is released* under the GNU GENERAL PUBLIC
LICENSE. Please see the README for more
information.****************************************************************************//*****************************************************************************
This program is free software; you can redistribute it and/or modify*
it under the terms of the GNU General Public License as published by*
the Free Software Foundation; either version 2 of the License, or* (at
your option) any later
version.****************************************************************************/define(‘IN_PHPBB’,
1);if ( !empty($setmodules) ){$filename =
basename(__FILE__);$module[‘Users’][‘Ban_Management’] =
$filename;return;}//// Load default header//$phpbb_root_path =
‘./../’;require($phpbb_root_path .
‘extension.inc’);require(‘./pagestart.’ . $phpEx);//// Start program//if
( isset($HTTP_POST_VARS[‘submit’]) ){$user_bansql =
”;$email_bansql = ”;$ip_bansql = ”;$user_list = array();if (
!empty($HTTP_POST_VARS[‘username’]) ){$this_userdata =
get_userdata($HTTP_POST_VARS[‘username’]);if( !$this_userdata
){message_die(GENERAL_MESSAGE, $lang[‘No_user_id_specified’]
);}$user_list[] = $this_userdata[‘user_id’];}$ip_list =
array();if ( isset($HTTP_POST_VARS[‘ban_ip’]) ){$ip_list_temp =
explode(‘,’, $HTTP_POST_VARS[‘ban_ip’]);for($i = 0; $i
count($ip_list_temp); $i++){if (
preg_match(‘/^([0-9]{1,3})/.([0-9]{1,3})/.([0-9]{1,3})/.([0-9]{1,3})[
]*/-[
]*([0-9]{1,3})/.([0-9]{1,3})/.([0-9]{1,3})/.([0-9]{1,3})$/’,
trim($ip_list_temp[$i]), $ip_range_explode) ){//// Don’t ask about
all this, just don’t ask … !为什么//$ip_1_counter =
$ip_range_explode[1];$ip_1_end = $ip_range_explode[5];while (
$ip_1_counter = $ip_1_end ){$ip_2_counter = ( $ip_1_counter ==
$ip_range_explode[1] ) ? $ip_range_explode[2] : 0;$ip_2_end =
( $ip_1_counter $ip_1_end ) ? 254 : $ip_range_explode[6];if (
$ip_2_counter == 0 && $ip_2_end == 254 ){$ip_2_counter =
255;$ip_2_fragment = 255;$ip_list[] =
encode_ip(“$ip_1_counter.255.255.255”);}while ( $ip_2_counter =
$ip_2_end ){$ip_3_counter = ( $ip_2_counter ==
$ip_range_explode[2] && $ip_1_counter == $ip_range_explode[1]
) ? $ip_range_explode[3] : 0;$ip_3_end = ( $ip_2_counter
$ip_2_end $ip_1_counter $ip_1_end ) ? 254 :
$ip_range_explode[7];if ( $ip_3_counter == 0 && $ip_3_end == 254
){$ip_3_counter = 255;$ip_3_fragment = 255;$ip_list[] =
encode_ip(“$ip_1_counter.$ip_2_counter.255.255”);}while (
$ip_3_counter = $ip_3_end ){$ip_4_counter = ( $ip_3_counter ==
$ip_range_explode[3] && $ip_2_counter == $ip_range_explode[2]
&& $ip_1_counter == $ip_range_explode[1] ) ?
$ip_range_explode[4] : 0;$ip_4_end = ( $ip_3_counter $ip_3_end
$ip_2_counter $ip_2_end ) ? 254 : $ip_range_explode[8];if (
$ip_4_counter == 0 && $ip_4_end == 254 ){$ip_4_counter =
255;$ip_4_fragment = 255;$ip_list[] =
encode_ip(“$ip_1_counter.$ip_2_counter.$ip_3_counter.255”);}while
( $ip_4_counter = $ip_4_end ){$ip_list[] =
encode_ip(“$ip_1_counter.$ip_2_counter.$ip_3_counter.$ip_4_counter”);$ip_4_counter++;}$ip_3_counter++;}$ip_2_counter++;}$ip_1_counter++;}}else
if ( preg_match(‘/^([/w/-_]/.?){2,}$/is’,
trim($ip_list_temp[$i])) ){$ip =
gethostbynamel(trim($ip_list_temp[$i]));for($j = 0; $j count($ip);
$j++){if ( !empty($ip[$j]) ){$ip_list[] =
encode_ip($ip[$j]);}}}else if (
preg_match(‘/^([0-9]{1,3})/.([0-9/*]{1,3})/.([0-9/*]{1,3})/.([0-9/*]{1,3})$/’,
trim($ip_list_temp[$i])) ){$ip_list[] =
encode_ip(str_replace(‘*’, ‘255’,
trim($ip_list_temp[$i])));}}}$email_list = array();if (
isset($HTTP_POST_VARS[‘ban_email’]) ){$email_list_temp =
explode(‘,’, $HTTP_POST_VARS[‘ban_email’]);for($i = 0; $i
count($email_list_temp); $i++){//// This ereg match is based on one by
[email]php@unreelpro.com[/email]// contained in the annotated php
manual at php.com (ereg// section)//if (
eregi(‘^(([[:alnum:]/*]+([-_.][[:alnum:]/*]+)*/.?)|(/*))@([[:alnum:]]+([-_]?[[:alnum:]]+)*/.){1,3}([[:alnum:]]{2,6})$’,
trim($email_list_temp[$i])) ){$email_list[] =
trim($email_list_temp[$i]);}}}$sql = “SELECT *FROM ” .
BANLIST_TABLE;if ( !($result = $db-sql_query($sql))
){message_die(GENERAL_ERROR, “Couldn’t obtain banlist information”,
“”, __LINE__, __FILE__, $sql);}$current_banlist =
$db-sql_fetchrowset($result);$db-sql_freeresult($result);$kill_session_sql
= ”;for($i = 0; $i count($user_list); $i++){$in_banlist =
false;for($j = 0; $j count($current_banlist); $j++){if (
$user_list[$i] == $current_banlist[$j][‘ban_userid’]
){$in_banlist = true;}}if ( !$in_banlist ){$kill_session_sql .= ( (
$kill_session_sql != ” ) ? ‘ OR ‘ : ” ) . “session_user_id = ” .
$user_list[$i];$sql = “INSERT INTO ” . BANLIST_TABLE . ”
(ban_userid)VALUES (” . $user_澳门新葡亰手机版,list[$i] . “)”;if (
!$db-sql_query($sql) ){message_die(GENERAL_ERROR, “Couldn’t insert
ban_userid info into database”, “”, __LINE__, __FILE__,
$sql);}}}for($i = 0; $i count($ip_list); $i++){$in_banlist =
false;for($j = 0; $j count($current_banlist); $j++){if (
$ip_list[$i] == $current_banlist[$j][‘ban_ip’] ){$in_banlist =
true;}}if ( !$in_banlist ){if ( preg_match(‘/(ff/.)|(/.ff)/is’,
chunk_split($ip_list[$i], 2, ‘.’)) ){$kill_ip_sql = “session_ip
LIKE ‘” . str_replace(‘.’, ”, preg_replace(‘/(ff/.)|(/.ff)/is’, ‘%’,
chunk_split($ip_list[$i], 2, “.”))) . “‘”;}else{$kill_ip_sql =
“session_ip = ‘” . $ip_list[$i] . “‘”;}$kill_session_sql .= ( (
$kill_session_sql != ” ) ? ‘ OR ‘ : ” ) . $kill_ip_sql;$sql =
“INSERT INTO ” . BANLIST_TABLE . ” (ban_ip)VALUES (‘” .
$ip_list[$i] . “‘)”;if ( !$db-sql_query($sql)
){message_die(GENERAL_ERROR, “Couldn’t insert ban_ip info into
database”, “”, __LINE__, __FILE__, $sql);}}}//// Now we’ll
delete all entries from the session table with any of the banned// user
or IP info just entered into the ban table … this will force a
session// initialisation resulting in an instant ban//if (
$kill_session_sql != ” ){$sql = “DELETE FROM ” . SESSIONS_TABLE .
“WHERE $kill_session_sql”;if ( !$db-sql_query($sql)
){message_die(GENERAL_ERROR, “Couldn’t delete banned sessions from
database”, “”, __LINE__, __FILE__, $sql);}}for($i = 0; $i
count($email_list); $i++){$in_banlist = false;for($j = 0; $j
count($current_banlist); $j++){if ( $email_list[$i] ==
$current_banlist[$j][‘ban_email’] ){$in_banlist = true;}}if (
!$in_banlist ){$sql = “INSERT INTO ” . BANLIST_TABLE . ”
(ban_email)VALUES (‘” . str_replace(“‘”, “””, $email_list[$i]) .
“‘)”;if ( !$db-sql_query($sql) ){message_die(GENERAL_ERROR, “Couldn’t
insert ban_email info into database”, “”, __LINE__, __FILE__,
$sql);}}}$where_sql = ”;if ( isset($HTTP_POST_VARS[‘unban_user’])
){$user_list = $HTTP_POST_VARS[‘unban_user’];for($i = 0; $i
count($user_list); $i++){if ( $user_list[$i] != -1 ){$where_sql .=
( ( $where_sql != ” ) ? ‘, ‘ : ” ) . $user_list[$i];}}}if (
isset($HTTP_POST_VARS[‘unban_ip’]) ){$ip_list =
$HTTP_POST_VARS[‘unban_ip’];for($i = 0; $i count($ip_list);
$i++){if ( $ip_list[$i] != -1 ){$where_sql .= ( ( $where_sql != ”
) ? ‘, ‘ : ” ) . $ip_list[$i];}}}if (
isset($HTTP_POST_VARS[‘unban_email’]) ){$email_list =
$HTTP_POST_VARS[‘unban_email’];for($i = 0; $i count($email_list);
$i++){if ( $email_list[$i] != -1 ){$where_sql .= ( ( $where_sql !=
” ) ? ‘, ‘ : ” ) . $email_list[$i];}}}if ( $where_sql != ” ){$sql
= “DELETE FROM ” . BANLIST_TABLE . “WHERE ban_id IN ($where_sql)”;if
( !$db-sql_query($sql) ){message_die(GENERAL_ERROR, “Couldn’t delete
ban info from database”, “”, __LINE__, __FILE__,
$sql);}}$message = $lang[‘Ban_update_sucessful’] . ‘br /br /’ .
sprintf($lang[‘Click_return_banadmin’], ‘a href=”‘ .
append_sid(“admin_user_ban.$phpEx”) . ‘”‘, ‘/a’) . ‘br /br /’ .
sprintf($lang[‘Click_return_admin_index’], ‘a href=”‘ .
append_sid(“index.$phpEx?pane=right”) . ‘”‘,
‘/a’);message_die(GENERAL_MESSAGE,
$message);}else{$template-set_filenames(array(‘body’ =
‘admin/user_ban_body.tpl’));$template-assign_vars(array(‘L_BAN_TITLE’
= $lang[‘Ban_control’],’L_BAN_EXPLAIN’ =
$lang[‘Ban_explain’],’L_BAN_EXPLAIN_WARN’ =
$lang[‘Ban_explain_warn’],’L_IP_OR_HOSTNAME’ =
$lang[‘IP_hostname’],’L_EMAIL_ADDRESS’ =
$lang[‘Email_address’],’L_SUBMIT’ = $lang[‘Submit’],’L_RESET’ =
$lang[‘Reset’],’S_BANLIST_ACTION’ =
append_sid(“admin_user_ban.$phpEx”)));$template-assign_vars(array(‘L_BAN_USER’
= $lang[‘Ban_username’],’L_BAN_USER_EXPLAIN’ =
$lang[‘Ban_username_explain’],’L_BAN_IP’ =
$lang[‘Ban_IP’],’L_BAN_IP_EXPLAIN’ =
$lang[‘Ban_IP_explain’],’L_BAN_EMAIL’ =
$lang[‘Ban_email’],’L_BAN_EMAIL_EXPLAIN’ =
$lang[‘Ban_email_explain’]));$userban_count = 0;$ipban_count =
0;$emailban_count = 0;$sql = “SELECT b.ban_id, u.user_id,
u.usernameFROM ” . BANLIST_TABLE . ” b, ” . USERS_TABLE . ” uWHERE
u.user_id = b.ban_useridAND b.ban_userid 0AND u.user_id ” .
ANONYMOUS . “ORDER BY u.user_id ASC”;if ( !($result =
$db-sql_query($sql)) ){message_die(GENERAL_ERROR, ‘Could not select
current user_id ban list’, ”, __LINE__, __FILE__,
$sql);}$user_list =
$db-sql_fetchrowset($result);$db-sql_freeresult($result);$select_userlist
= ”;for($i = 0; $i count($user_list); $i++){$select_userlist .=
‘option value=”‘ . $user_list[$i][‘ban_id’] . ‘”‘ .
$user_list[$i][‘username’] . ‘/option’;$userban_count++;}if(
$select_userlist == ” ){$select_userlist = ‘option value=”-1″‘ .
$lang[‘No_banned_users’] . ‘/option’;}$select_userlist = ‘select
name=”unban_user[]” multiple=”multiple” size=”5″‘ . $select_userlist
. ‘/select’;$sql = “SELECT ban_id, ban_ip, ban_emailFROM ” .
BANLIST_TABLE;if ( !($result = $db-sql_query($sql))
){message_die(GENERAL_ERROR, ‘Could not select current ip ban list’,
”, __LINE__, __FILE__, $sql);}$banlist =
$db-sql_fetchrowset($result);$db-sql_freeresult($result);$select_iplist
= ”;$select_emaillist = ”;for($i = 0; $i count($banlist);
$i++){$ban_id = $banlist[$i][‘ban_id’];if (
!empty($banlist[$i][‘ban_ip’]) ){$ban_ip = str_replace(‘255’,
‘*’, decode_ip($banlist[$i][‘ban_ip’]));$select_iplist .=
‘option value=”‘ . $ban_id . ‘”‘ . $ban_ip .
‘/option’;$ipban_count++;}else if (
!empty($banlist[$i][‘ban_email’]) ){$ban_email =
$banlist[$i][‘ban_email’];$select_emaillist .= ‘option value=”‘ .
$ban_id . ‘”‘ . $ban_email . ‘/option’;$emailban_count++;}}if (
$select_iplist == ” ){$select_iplist = ‘option value=”-1″‘ .
$lang[‘No_banned_ip’] . ‘/option’;}if ( $select_emaillist == ” )
{$select_emaillist = ‘option value=”-1″‘ . $lang[‘No_banned_email’]
. ‘/option’;}$select_iplist = ‘select name=”unban_ip[]”
multiple=”multiple” size=”5″‘ . $select_iplist .
‘/select’;$select_emaillist = ‘select name=”unban_email[]”
multiple=”multiple” size=”5″‘ . $select_emaillist .
‘/select’;$template-assign_vars(array(‘L_UNBAN_USER’ =
$lang[‘Unban_username’],’L_UNBAN_USER_EXPLAIN’ =
$lang[‘Unban_username_explain’],’L_UNBAN_IP’ =
$lang[‘Unban_IP’],’L_UNBAN_IP_EXPLAIN’ =
$lang[‘Unban_IP_explain’],’L_UNBAN_EMAIL’ =
$lang[‘Unban_email’],’L_UNBAN_EMAIL_EXPLAIN’ =
$lang[‘Unban_email_explain’], ‘L_USERNAME’ = $lang[‘Username’],
‘L_LOOK_UP’ = $lang[‘Look_up_User’],’L_FIND_USERNAME’ =
$lang[‘Find_username’],’U_SEARCH_USER’ =
append_sid(“search.$phpEx?mode=searchuser&popup=1&menu=1”),
‘S_UNBAN_USERLIST_SELECT’ =
$select_userlist,’S_UNBAN_IPLIST_SELECT’ =
$select_iplist,’S_UNBAN_EMAILLIST_SELECT’ =
$select_emaillist,’S_BAN_ACTION’ =
append_sid(“admin_user_ban.$phpEx”)));}$template-pparse(‘body’);include(‘./page_footer_admin.’.$phpEx);?

如何限制访问者的ipCode:sql_query{message_die(GENERAL_ERROR, “Couldn’t
obtain banlist information”, “”, __LINE__, __FILE__,
$sql);}$current_banlist =
$db->sql_fetchrowset;$db->sql_freeresult;$kill_session_sql =
”;for($i = 0; $i < count{$in_banlist = false;for($j = 0; $j <
count; $j++){if ( $user_list[$i] ==
$current_banlist[$j][‘ban_userid’] ){$in_banlist = true;}}if
{$kill_session_sql .= ( ( $kill_session_sql != ” ) ? ‘ OR ‘ : ” )
. “session_user_id = ” . $user_list[$i];$sql = “INSERT INTO ” .
BANLIST_TABLE . ” VALUES (” . $user_list[$i] . “)”;if (
!$db->sql_query{message_die(GENERAL_ERROR, “Couldn’t insert
ban_userid info into database”, “”, __LINE__, __FILE__,
$sql);}}}for($i = 0; $i < count{$in_banlist = false;for($j = 0; $j
< count; $j++){if ( $ip_list[$i] ==
$current_banlist[$j][‘ban_ip’] ){$in_banlist = true;}}if {if
|/is’, chunk_split) ){$kill_ip_sql = “session_ip LIKE ‘” .
str_replace(‘.’, ”, preg_replace/is’, ‘%’, chunk_split)) .
“‘”;}else{$kill_ip_sql = “session_ip = ‘” . $ip_list[$i] .
“‘”;}$kill_session_sql .= ( ( $kill_session_sql != ” ) ? ‘ OR ‘ :
” ) . $kill_ip_sql;$sql = “INSERT INTO ” . BANLIST_TABLE . ” VALUES
(‘” . $ip_list[$i] . “‘)”;if (
!$db->sql_query{message_die(GENERAL_ERROR, “Couldn’t insert
ban_ip info into database”, “”, __LINE__, __FILE__,
$sql);}}}//// Now we’ll delete all entries from the session table with
any of the banned// user or IP info just entered into the ban table …
this will force a session// initialisation resulting in an instant
ban//if ( $kill_session_sql != ” ){$sql = “DELETE FROM ” .
SESSIONS_TABLE . “WHERE $kill_session_sql”;if (
!$db->sql_query{message_die(GENERAL_ERROR, “Couldn’t delete banned
sessions from database”, “”, __LINE__, __FILE__, $sql);}}for($i
= 0; $i < count{$in_banlist = false;for($j = 0; $j < count;
$j++){if ( $email_list[$i] == $current_banlist[$j][‘ban_email’]
){$in_banlist = true;}}if {$sql = “INSERT INTO ” . BANLIST_TABLE . ”
VALUES (‘” . str_replace(“‘”, “””, $email_list[$i]) . “‘)”;if (
!$db->sql_query{message_die(GENERAL_ERROR, “Couldn’t insert
ban_email info into database”, “”, __LINE__, __FILE__,
$sql);}}}$where_sql = ”;if ( isset($HTTP_POST_VARS[‘unban_user’])
){$user_list = $HTTP_POST_VARS[‘unban_user’];for($i = 0; $i <
count{if ( $user_list[$i] != -1 ){$where_sql .= ? ‘, ‘ : ” ) .
$user_list[$i];}}}if ( isset($HTTP_POST_VARS[‘unban_ip’])
){$ip_list = $HTTP_POST_VARS[‘unban_ip’];for($i = 0; $i <
count{if {$where_sql .= ? ‘, ‘ : ” ) . $ip_list[$i];}}}if (
isset($HTTP_POST_VARS[‘unban_email’]) ){$email_list =
$HTTP_POST_VARS[‘unban_email’];for($i = 0; $i < count{if (
$email_list[$i] != -1 ){$where_sql .= ? ‘, ‘ : ” ) .
$email_list[$i];}}}if {$sql = “DELETE FROM ” . BANLIST_TABLE .
“WHERE ban_id IN “;if (
!$db->sql_query{message_die(GENERAL_ERROR, “Couldn’t delete ban
info from database”, “”, __LINE__, __FILE__, $sql);}}$message =
$lang[‘Ban_update_sucessful’] . ‘

‘ . sprintf($lang[‘Click_return_banadmin’], ”,
”) . ‘