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- <?php
-
- require 'inc/lib/IP/Lifo/IP/IP.php';
- require 'inc/lib/IP/Lifo/IP/BC.php';
- require 'inc/lib/IP/Lifo/IP/CIDR.php';
-
- use Lifo\IP\CIDR;
-
- class Bans {
- static public function range_to_string($mask) {
- list($ipstart, $ipend) = $mask;
-
- if (!isset($ipend) || $ipend === false) {
- // Not a range. Single IP address.
- $ipstr = inet_ntop($ipstart);
- return $ipstr;
- }
-
- if (strlen($ipstart) != strlen($ipend))
- return '???'; // What the fuck are you doing, son?
-
- $range = CIDR::range_to_cidr(inet_ntop($ipstart), inet_ntop($ipend));
- if ($range !== false)
- return $range;
-
- return '???';
- }
-
- private static function calc_cidr($mask) {
- $cidr = new CIDR($mask);
- $range = $cidr->getRange();
-
- return array(inet_pton($range[0]), inet_pton($range[1]));
- }
-
- public static function parse_time($str) {
- if (empty($str))
- return false;
-
- if (($time = @strtotime($str)) !== false)
- return $time;
-
- if (!preg_match('/^((\d+)\s?ye?a?r?s?)?\s?+((\d+)\s?mon?t?h?s?)?\s?+((\d+)\s?we?e?k?s?)?\s?+((\d+)\s?da?y?s?)?((\d+)\s?ho?u?r?s?)?\s?+((\d+)\s?mi?n?u?t?e?s?)?\s?+((\d+)\s?se?c?o?n?d?s?)?$/', $str, $matches))
- return false;
-
- $expire = 0;
-
- if (isset($matches[2])) {
- // Years
- $expire += $matches[2]*60*60*24*365;
- }
- if (isset($matches[4])) {
- // Months
- $expire += $matches[4]*60*60*24*30;
- }
- if (isset($matches[6])) {
- // Weeks
- $expire += $matches[6]*60*60*24*7;
- }
- if (isset($matches[8])) {
- // Days
- $expire += $matches[8]*60*60*24;
- }
- if (isset($matches[10])) {
- // Hours
- $expire += $matches[10]*60*60;
- }
- if (isset($matches[12])) {
- // Minutes
- $expire += $matches[12]*60;
- }
- if (isset($matches[14])) {
- // Seconds
- $expire += $matches[14];
- }
-
- return time() + $expire;
- }
-
- static public function parse_range($mask) {
- $ipstart = false;
- $ipend = false;
-
- if (preg_match('@^(\d{1,3}\.){1,3}([\d*]{1,3})?$@', $mask) && substr_count($mask, '*') == 1) {
- // IPv4 wildcard mask
- $parts = explode('.', $mask);
- $ipv4 = '';
- foreach ($parts as $part) {
- if ($part == '*') {
- $ipstart = inet_pton($ipv4 . '0' . str_repeat('.0', 3 - substr_count($ipv4, '.')));
- $ipend = inet_pton($ipv4 . '255' . str_repeat('.255', 3 - substr_count($ipv4, '.')));
- break;
- } elseif(($wc = strpos($part, '*')) !== false) {
- $ipstart = inet_pton($ipv4 . substr($part, 0, $wc) . '0' . str_repeat('.0', 3 - substr_count($ipv4, '.')));
- $ipend = inet_pton($ipv4 . substr($part, 0, $wc) . '9' . str_repeat('.255', 3 - substr_count($ipv4, '.')));
- break;
- }
- $ipv4 .= "$part.";
- }
- } elseif (preg_match('@^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/\d+$@', $mask)) {
- list($ipv4, $bits) = explode('/', $mask);
- if ($bits > 32)
- return false;
-
- list($ipstart, $ipend) = self::calc_cidr($mask);
- } elseif (preg_match('@^[:a-z\d]+/\d+$@i', $mask)) {
- list($ipv6, $bits) = explode('/', $mask);
- if ($bits > 128)
- return false;
-
- list($ipstart, $ipend) = self::calc_cidr($mask);
- } else {
- if (($ipstart = @inet_pton($mask)) === false)
- return false;
- }
-
- return array($ipstart, $ipend);
- }
-
- static public function find($ip, $board = false, $get_mod_info = false) {
- global $config;
-
- $query = prepare('SELECT ``bans``.*' . ($get_mod_info ? ', `username`' : '') . ' FROM ``bans``
- ' . ($get_mod_info ? 'LEFT JOIN ``mods`` ON ``mods``.`id` = `creator`' : '') . '
- WHERE
- (' . ($board !== false ? '(`board` IS NULL OR `board` = :board) AND' : '') . '
- (`ipstart` = :ip OR (:ip >= `ipstart` AND :ip <= `ipend`)))
- ORDER BY `expires` IS NULL, `expires` DESC');
-
- if ($board !== false)
- $query->bindValue(':board', $board, PDO::PARAM_STR);
-
- $query->bindValue(':ip', inet_pton($ip));
- $query->execute() or error(db_error($query));
-
- $ban_list = array();
-
- while ($ban = $query->fetch(PDO::FETCH_ASSOC)) {
- if ($ban['expires'] && ($ban['seen'] || !$config['require_ban_view']) && $ban['expires'] < time()) {
- self::delete($ban['id']);
- } else {
- if ($ban['post'])
- $ban['post'] = json_decode($ban['post'], true);
- $ban['mask'] = self::range_to_string(array($ban['ipstart'], $ban['ipend']));
- $ban_list[] = $ban;
- }
- }
-
- return $ban_list;
- }
-
- static public function stream_json($out = false, $filter_ips = false, $filter_staff = false, $board_access = false, $hide_regexes = []) {
- $query = query("SELECT ``bans``.*, `username` FROM ``bans``
- LEFT JOIN ``mods`` ON ``mods``.`id` = `creator`
- ORDER BY `created` DESC") or error(db_error());
- $bans = $query->fetchAll(PDO::FETCH_ASSOC);
-
- if ($board_access && $board_access[0] == '*') $board_access = false;
-
- $out ? fputs($out, "[") : print("[");
-
- $end = end($bans);
-
- foreach ($bans as &$ban) {
- $ban['mask'] = self::range_to_string(array($ban['ipstart'], $ban['ipend']));
-
- $hide_message = false;
- foreach ($hide_regexes as $regex) {
- if(preg_match($regex, $ban['reason'])) {
- $hide_message = true;
- break;
- }
- }
-
- if ($ban['post'] && !$hide_message) {
- $post = json_decode($ban['post']);
- $ban['message'] = isset($post->body) ? $post->body : 0;
- }
- unset($ban['ipstart'], $ban['ipend'], $ban['post'], $ban['creator']);
-
- if ($board_access === false || in_array ($ban['board'], $board_access)) {
- $ban['access'] = true;
- }
-
- if (filter_var($ban['mask'], FILTER_VALIDATE_IP) !== false) {
- $ban['single_addr'] = true;
- }
- if ($filter_staff || ($board_access !== false && !in_array($ban['board'], $board_access))) {
- $ban['username'] = '?';
- }
- if ($filter_ips || ($board_access !== false && !in_array($ban['board'], $board_access))) {
- @list($ban['mask'], $subnet) = explode("/", $ban['mask']);
- $ban['mask'] = preg_split("/[\.:]/", $ban['mask']);
- $ban['mask'] = array_slice($ban['mask'], 0, 2);
- $ban['mask'] = implode(".", $ban['mask']);
- $ban['mask'] .= ".x.x";
- if (isset ($subnet)) {
- $ban['mask'] .= "/$subnet";
- }
- $ban['masked'] = true;
- }
-
- $json = json_encode($ban);
- $out ? fputs($out, $json) : print($json);
-
- if ($ban['id'] != $end['id']) {
- $out ? fputs($out, ",") : print(",");
- }
- }
-
- $out ? fputs($out, "]") : print("]");
-
- }
-
- static public function seen($ban_id) {
- $query = query("UPDATE ``bans`` SET `seen` = 1 WHERE `id` = " . (int)$ban_id) or error(db_error());
- rebuildThemes('bans');
- }
-
- static public function purge() {
- $query = query("DELETE FROM ``bans`` WHERE `expires` IS NOT NULL AND `expires` < " . time() . " AND `seen` = 1") or error(db_error());
- rebuildThemes('bans');
- }
-
- static public function delete($ban_id, $modlog = false, $boards = false, $dont_rebuild = false) {
- global $config;
-
- if ($boards && $boards[0] == '*') $boards = false;
-
- if ($modlog) {
- $query = query("SELECT `ipstart`, `ipend`, `board` FROM ``bans`` WHERE `id` = " . (int)$ban_id) or error(db_error());
- if (!$ban = $query->fetch(PDO::FETCH_ASSOC)) {
- // Ban doesn't exist
- return false;
- }
-
- if ($boards !== false && !in_array($ban['board'], $boards))
- error($config['error']['noaccess']);
-
- $mask = self::range_to_string(array($ban['ipstart'], $ban['ipend']));
-
- modLog("Removed ban #{$ban_id} for " .
- (filter_var($mask, FILTER_VALIDATE_IP) !== false ? "<a href=\"?/IP/$mask\">$mask</a>" : $mask));
- }
-
- query("DELETE FROM ``bans`` WHERE `id` = " . (int)$ban_id) or error(db_error());
-
- if (!$dont_rebuild) rebuildThemes('bans');
-
- return true;
- }
-
- static public function new_ban($mask, $reason, $length = false, $ban_board = false, $mod_id = false, $post = false) {
- global $mod, $pdo, $board;
-
- if ($mod_id === false) {
- $mod_id = isset($mod['id']) ? $mod['id'] : -1;
- }
-
- $range = self::parse_range($mask);
- $mask = self::range_to_string($range);
-
- $query = prepare("INSERT INTO ``bans`` VALUES (NULL, :ipstart, :ipend, :time, :expires, :board, :mod, :reason, 0, :post)");
-
- $query->bindValue(':ipstart', $range[0]);
- if ($range[1] !== false && $range[1] != $range[0])
- $query->bindValue(':ipend', $range[1]);
- else
- $query->bindValue(':ipend', null, PDO::PARAM_NULL);
-
- $query->bindValue(':mod', $mod_id);
- $query->bindValue(':time', time());
-
- if ($reason !== '') {
- $reason = escape_markup_modifiers($reason);
- markup($reason);
- $query->bindValue(':reason', $reason);
- } else
- $query->bindValue(':reason', null, PDO::PARAM_NULL);
-
- if ($length) {
- if (is_int($length) || ctype_digit($length)) {
- $length = time() + $length;
- } else {
- $length = self::parse_time($length);
- }
- $query->bindValue(':expires', $length);
- } else {
- $query->bindValue(':expires', null, PDO::PARAM_NULL);
- }
-
- if ($ban_board)
- $query->bindValue(':board', $ban_board);
- else
- $query->bindValue(':board', null, PDO::PARAM_NULL);
-
- if ($post) {
- $post['board'] = $board['uri'];
- $query->bindValue(':post', json_encode($post));
- } else
- $query->bindValue(':post', null, PDO::PARAM_NULL);
-
- $query->execute() or error(db_error($query));
-
- if (isset($mod['id']) && $mod['id'] == $mod_id) {
- modLog('Created a new ' .
- ($length > 0 ? preg_replace('/^(\d+) (\w+?)s?$/', '$1-$2', until($length)) : 'permanent') .
- ' ban on ' .
- ($ban_board ? '/' . $ban_board . '/' : 'all boards') .
- ' for ' .
- (filter_var($mask, FILTER_VALIDATE_IP) !== false ? "<a href=\"?/IP/$mask\">$mask</a>" : $mask) .
- ' (<small>#' . $pdo->lastInsertId() . '</small>)' .
- ' with ' . ($reason ? 'reason: ' . utf8tohtml($reason) . '' : 'no reason'));
- }
-
- rebuildThemes('bans');
-
- return $pdo->lastInsertId();
- }
- }
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