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_ur_ban.php

* ——————-

* begin : tuesday, jul 31, 2001

* copyright : (c) 2001 the phpbb group

* email : [email]support@phpbb.com[/email]

*

* $id: admin_ur_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]http://bbtonuke.sourceforge.net[/url] (or [url]http://www.toms-home.com)[/url]

*

* as always, make a backup before messing with anything. all code

* relea by me is considered sample code only. it may be fully

* functual, but you u it at your own risk, if you break it,

* you get to fix it too. no waranty is given or implied.

*

* plea post all questions/request about this port on [url]http://bbtonuke.sourceforge.net[/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 relead

* under the gnu general public licen. plea e 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 licen as published by

* the free software foundation; either version 2 of the licen, or

* (at your option) any later version.

*

***************************************************************************/

define(‘in_phpbb’, 1);

if ( !empty($tmodules) )

{

$filename = baname(__file__);

$module[‘urs’][‘ban_management’] = $filename;

return;

}

//

// load default header

//

$phpbb_root_path = ‘./../’;

require($phpbb_root_path . ‘extension.inc’);

require(‘./pagestart.’ . $phpex);

//

// start program

//

if ( ist($http_post_vars[‘submit’]) )

{

$ur_bansql = ”;

$email_bansql = ”;

$ip_bansql = ”;

$ur_list = array();

if ( !empty($http_post_vars[‘urname’]) )

{

$this_urdata = get_urdata($http_post_vars[‘urname’]);

if( !$this_urdata )

{

message_die(general_message, $lang[‘no_ur_id_specified’] );

}

$ur_list[] = $this_urdata[‘ur_id’];

}

$ip_list = array();

if ( ist($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++;

}

}

el 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]);

}

}

}

el 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 ( ist($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 bad on one by [email]php@unreelpro.com[/email]

// contained in the annotated php manual at php.com (ereg

// ction)

//

if ( eregi(‘^(([[:alnum:]\*]+([-_.][[:alnum:]\*]+)*\.?)|(\*))@([[:alnum:]]+([-_]?[[:alnum:]]+)*\.){1,3}([[:alnum:]]{2,6})$’, trim($email_list_temp[$i])) )

{

$email_list[] = tr赵一曼的故事资料im($email_list_temp[$i]);

}

}

}

$sql = “lect *

from ” . banlist_table;

if ( !($result = $db->sql_query($sql)) )

{

message_die(general_error, “couldn’t obtain banlist information”, “”, __line__, __file__, $sql);

}

$current_banlist = $db->sql_fetchrowt($result);

$db->sql_freeresult($result);

$kill_ssion_sql = ”;

for($i = 0; $i < count($ur_list); $i++)

{

$in_banlist = fal;

for($j = 0; $j < count($current_banlist); $j++)

{

if ( $ur_list[$i] == $current_banlist[$j][‘ban_urid’] )

{

$in_banlist = true;

}

}

if ( !$in_banlist )

{

$kill_ssion_sql .= ( ( $kill_ssion_sql != ” ) ? ‘ or ‘ : ” ) . “ssion_ur_id = ” . $ur_list[$i];

$sql = “in有趣的一件事rt into ” . banlist_table . ” (ban_urid)

values (” . $ur_list[$i] . “)”;

if ( !$db->sql_query($sql) )

{

message_die(general_error, “couldn’t inrt ban_urid info into databa”, “”, __line__, __file__, $sql);

}

}

}

for($i = 0; $i < count($ip_list); $i++)

{

$in_banlist = fal;

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, ‘.’)) )

{

$kill_ip_sql = “ssion_ip like ‘” . str_replace(‘.’, ”, preg_replace(‘/(ff\.)|(\.ff)/is’, ‘%’, chunk_split($ip_list[$i], 2, “.”))) . “‘”;

}

el

{

$kill_ip_sql = “ssion_ip = ‘” . $ip_list[$i] . “‘”;

}

$kill_ssion_sql .= ( ( $kill_ssion_sql != ” ) ? ‘ or ‘ : ” ) . $kill_ip_sql;

$sql = “inrt into ” . banlist_table . ” (ban_ip)

values (‘” . $ip_list[$i] . “‘)”;

if ( !$db->sql_query($sql) )

{

message_die(general_error, “couldn’t inrt ban_ip info into databa”, “”, __line__, __file__, $sql);

}

}

}

//

// now we’ll delete all entries from the ssion table with any of the banned

// ur or ip info just entered into the ban table … this will force a ssion

// initialisation resulting in an instant ban

//

if ( $kill_ssion_sql != ” )

{

$sql = “delete from ” . ssions_table . ”

where $kill_ssion_sql”;

if ( !$db->sql_query($sql) )

{

message_die(general_error, “couldn’t delete banned ssions from databa”, “”, __line__, __file__, $sql);

}

}

for($i = 0; $i < count($email_list); $i++)

{

$in_banlist = fal;

for($j = 0; $j < count($current_banlist); $j++)

{

if ( $email_list[$i] == $current_banlist[$j][‘ban_email’] )

{

$in_banlist = true;

}

}

if ( !$in_banlist )

{

$sql = “inrt into ” . banlist_table . ” (ban_email)

values (‘” . str_replace(“‘”, “””, $email_list[$i]) . “‘)”;

if ( !$db->sql_query($sql) )

{

message_die(general_error, “couldn’t inrt ban_email info into databa”, “”, __line__, __file__, $sql);

}

}

}

$where_sql = ”;

if ( 日本宪兵ist($http_post_vars[‘unban_ur’]) )

{

$ur_list = $http_post_vars[‘unban_ur’];

for($i = 0苦心孤诣的意思; $i < count($ur_list); $i++)

{

if ( $ur_list[$i] != -1 )

{

$where_sql .= ( ( $where_sql != ” ) ? ‘, ‘ : ” ) . $ur_list[$i];

}

}

}

if ( ist($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 ( ist($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 databa”, “”, __line__, __file__, $sql);

}

}

$message = $lang[‘ban_update_sucessful’] . ‘<br /><br />’ . sprintf($lang[‘click_return_banadmin’], ‘<a href=”‘ . append_sid(“admin_ur_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);

}

el

{

$template->t_filenames(array(

‘body’ => ‘admin/ur_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_ret’ => $lang[‘ret’],

‘s_banlist_action’ => append_sid(“admin_ur_ban.$phpex”))

);

$template->assign_vars(array(

‘l_ban_ur’ => $lang[‘ban_urname’],

‘l_ban_ur_explain’ => $lang[‘ban_urname_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’])

);

$urban_count = 0;

$ipban_count = 0;

$emailban_count = 0;

$sql = “lect b.ban_id, u.ur_id, u.urname

from ” . banlist_table . ” b, ” . urs_table . ” u

where u.ur_id = b.ban_urid

and b.ban_urid <> 0

and u.ur_id <> ” . anonymous . ”

order by u.ur_id asc”;

if ( !($result = $db->sql_query($sql)) )

{

message_die(general_error, ‘could not lect current ur_id ban list’, ”, __line__, __file__, $sql);

}

$ur_list = $db->sql_fetchrowt($result);

$db->sql_freeresult($result);

$lect_urlist = ”;

for($i = 0; $i < count($ur_list); $i++)

{

$lect_urlist .= ‘<option value=”‘ . $ur_list[$i][‘ban_id’] . ‘”>’ . $ur_list[$i][‘urname’] . ‘</option>’;

$urban_count++;

}

if( $lect_urlist == ” )

{

$lect_urlist = ‘<option value=”-1″>’ . $lang[‘no_banned_urs’] . ‘</option>’;

}

$lect_urlist = ‘<lect name=”unban_ur[]” multiple=”multiple” size=”5″>’ . $lect_urlist . ‘</lect>’;

$sql = “lect ban_id, ban_ip, ban_email

from ” . banlist_table;

if ( !($result = $db->sql_query($sql)) )

{

message_die(general_error, ‘could not lect current ip ban list’, ”, __line__, __file__, $sql);

}

$banlist = $db->sql_fetchrowt($result);

$db->sql_freeresult($result);

$lect_iplist = R谷雨诗词21;;

$lect_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’]));

$lect_iplist .= ‘<option value=”‘ . $ban_id . ‘”>’ . $ban_ip . ‘</option>’;

$ipban_count++;

}

el if ( !empty($banlist[$i][‘ban_email’]) )

{

$ban_email = $banlist[$i][‘ban_email’];

$lect_emaillist .= ‘<option value=”‘ . $ban_id . ‘”>’ . $ban_email . ‘</option>’;

$emailban_count++;

}

}

if ( $lect_iplist == ” )

{

$lect_iplist = ‘<option value=”-1″>’ . $lang[‘no_banned_ip’] . ‘</option>’;

}

if ( $lect_emaillist == ” )

{

$lect_emaillist = ‘<option value=”-1″>’ . $lang[‘no_banned_email’] . ‘</option>’;

}

$lect_iplist = ‘<lect name=”unban_ip[]” multiple=”multiple” size=”5″>’ . $lect_iplist . ‘</lect>’;

$lect_emaillist = ‘<lect name=”unban_email[]” multiple=”multiple” size=”5″>’ . $lect_emaillist . ‘</lect>’;

$template->assign_vars(array(

‘l_unban_ur’ => $lang[‘unban_urname’],

‘l_unban_ur_explain’ => $lang[‘unban_urname_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_urname’ => $lang[‘urname’],

‘l_look_up’ => $lang[‘look_up_ur’],

‘l_find_urname’ => $lang[‘find_urname’],

‘u_arch_ur’ => append_sid(“arch.$phpex?mode=archur&popup=1&menu=1”),

‘s_unban_urlist_lect’ => $lect_urlist,

‘s_unban_iplist_lect’ => $lect_iplist,

‘s_unban_emaillist_lect’ => $lect_emaillist,

‘s_ban_action’ => append_sid(“admin_ur_ban.$phpex”))

);

}

$template->ppar(‘body’);

include(‘./page_footer_admin.’.$phpex);

?>