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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]http://bbtonuke.sourceforge.net[/url] (or [url]http://www.toms-home.com)[/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]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 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 (" . $user_list[$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; $sql = "SELECT b.ban_id, u.user_id, u.username FROM " . BANLIST_TABLE . " b, " . USERS_TABLE . " u WHERE u.user_id = b.ban_userid AND b.ban_userid <> 0 AND u.user_id <> " . ANONYMOUS . " ORDER BY u.user_id ASC"; if ( !($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>"; $sql = "SELECT ban_id, ban_ip, ban_email FROM " . BANLIST_TABLE; if ( !($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); ?>
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