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https://github.com/vichan-devel/vichan.git
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ip cloaking
This commit is contained in:
h00j
parent
7a42158177
commit
bce71c1f98
17
inc/bans.php
17
inc/bans.php
@ -142,6 +142,7 @@ class Bans {
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if ($ban['post'])
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$ban['post'] = json_decode($ban['post'], true);
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$ban['mask'] = self::range_to_string(array($ban['ipstart'], $ban['ipend']));
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$ban['cmask'] = cloak_mask($ban['mask']);
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$ban_list[] = $ban;
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}
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}
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@ -162,7 +163,8 @@ class Bans {
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$end = end($bans);
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foreach ($bans as &$ban) {
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$ban['mask'] = self::range_to_string(array($ban['ipstart'], $ban['ipend']));
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$uncloaked_mask = self::range_to_string(array($ban['ipstart'], $ban['ipend']));
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$ban['mask'] = cloak_mask($uncloaked_mask);
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if ($ban['post']) {
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$post = json_decode($ban['post']);
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@ -174,7 +176,7 @@ class Bans {
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$ban['access'] = true;
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}
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if (filter_var($ban['mask'], FILTER_VALIDATE_IP) !== false) {
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if (filter_var($uncloaked_mask, FILTER_VALIDATE_IP) !== false) {
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$ban['single_addr'] = true;
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}
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if ($filter_staff || ($board_access !== false && !in_array($ban['board'], $board_access))) {
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@ -230,9 +232,10 @@ class Bans {
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error($config['error']['noaccess']);
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$mask = self::range_to_string(array($ban['ipstart'], $ban['ipend']));
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$cloaked_mask = cloak_mask($mask);
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modLog("Removed ban #{$ban_id} for " .
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(filter_var($mask, FILTER_VALIDATE_IP) !== false ? "<a href=\"?/IP/$mask\">$mask</a>" : $mask));
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(filter_var($mask, FILTER_VALIDATE_IP) !== false ? "<a href=\"?/IP/$cloaked_mask\">$cloaked_mask</a>" : $cloaked_mask));
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}
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query("DELETE FROM ``bans`` WHERE `id` = " . (int)$ban_id) or error(db_error());
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@ -242,7 +245,9 @@ class Bans {
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return true;
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}
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static public function new_ban($mask, $reason, $length = false, $ban_board = false, $mod_id = false, $post = false) {
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static public function new_ban($cloaked_mask, $reason, $length = false, $ban_board = false, $mod_id = false, $post = false) {
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$mask = uncloak_mask($cloaked_mask);
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global $mod, $pdo, $board;
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if ($mod_id === false) {
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@ -251,6 +256,7 @@ class Bans {
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$range = self::parse_range($mask);
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$mask = self::range_to_string($range);
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$cloaked_mask = cloak_mask($mask);
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$query = prepare("INSERT INTO ``bans`` VALUES (NULL, :ipstart, :ipend, :time, :expires, :board, :mod, :reason, 0, :post)");
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@ -293,14 +299,13 @@ class Bans {
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$query->bindValue(':post', null, PDO::PARAM_NULL);
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$query->execute() or error(db_error($query));
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if (isset($mod['id']) && $mod['id'] == $mod_id) {
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modLog('Created a new ' .
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($length > 0 ? preg_replace('/^(\d+) (\w+?)s?$/', '$1-$2', until($length)) : 'permanent') .
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' ban on ' .
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($ban_board ? '/' . $ban_board . '/' : 'all boards') .
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' for ' .
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(filter_var($mask, FILTER_VALIDATE_IP) !== false ? "<a href=\"?/IP/$mask\">$mask</a>" : $mask) .
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(filter_var($mask, FILTER_VALIDATE_IP) !== false ? "<a href=\"?/IP/$cloaked_mask\">$cloaked_mask</a>" : $cloaked_mask) .
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' (<small>#' . $pdo->lastInsertId() . '</small>)' .
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' with ' . ($reason ? 'reason: ' . utf8tohtml($reason) . '' : 'no reason'));
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}
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@ -1874,3 +1874,13 @@
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// Allowed HTML tags in ?/edit_pages.
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$config['allowed_html'] = 'a[href|title],p,br,li,ol,ul,strong,em,u,h2,b,i,tt,div,img[src|alt|title],hr';
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// Secret passphrase for IP cloaking
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// Disabled if empty.
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$config['ipcrypt_key'] = '';
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// IP cloak prefix
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$config['ipcrypt_prefix'] = 'Cloak';
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// Whether to append domain names to IP cloaks
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$config['ipcrypt_dns'] = false;
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@ -2860,3 +2860,118 @@ function strategy_first($fun, $array) {
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return array('defer');
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}
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}
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function base32_decode($d) {
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$charset = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ234567';
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$d = str_split($d);
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$l = array_pop($d);
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$b = '';
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foreach ($d as $c) {
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$b .= sprintf("%05b", strpos($charset, $c));
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}
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$padding = 8 - strlen($b) % 8;
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$b .= str_pad(decbin(strpos($charset, $l)), $padding, '0', STR_PAD_LEFT);
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return implode('', array_map(function($c) { return chr(bindec($c)); }, str_split($b, 8)));
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}
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function base32_encode($d) {
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$charset = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ234567';
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$b = implode('', array_map(function($c) { return sprintf("%08b", ord($c)); }, str_split($d)));
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return implode('', array_map(function($c) use ($charset) { return $charset[bindec($c)]; }, str_split($b, 5)));
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}
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function cloak_ip($ip) {
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global $config;
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$ipcrypt_key = $config['ipcrypt_key'] ?: null;
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if (empty($ipcrypt_key))
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return $ip;
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$ip_dec = inet_pton($ip);
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if ($config['ipcrypt_dns']) {
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$host = gethostbyaddr($ip);
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if ($host !== $ip) {
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$segments = explode('.', $host);
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$tld = [];
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$tld[] = array_pop($segments);
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if (count($segments) >= 2) {
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$tld[] = array_pop($segments);
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}
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$tld = implode('.', array_reverse($tld));
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}
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}
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if (is_numeric($ip))
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$ipbytes = pack('N', $ip);
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else if ($ip_dec !== false)
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$ipbytes = $ip_dec;
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else
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return "#ERROR";
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if (strlen($ipbytes) >= 16)
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$ipbytes = substr($ipbytes, 0, 16);
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$cyphertext = openssl_encrypt($ipbytes, 'rc4-40', $ipcrypt_key, OPENSSL_RAW_DATA);
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$ret = $config['ipcrypt_prefix'].':' . base32_encode($cyphertext);
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if (isset($tld) && !empty($tld)) {
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$ret .= '.'.$tld;
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}
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return $ret;
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}
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function uncloak_ip($ip) {
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global $config;
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$ipcrypt_key = ($config['ipcrypt_key']);
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if (empty($ipcrypt_key))
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return $ip;
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$juice = substr($ip, strlen($config['ipcrypt_prefix']) + 1);
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if ($delimiter = strpos($juice, '.')) {
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$juice = substr($juice, 0, $delimiter);
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}
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if (substr($ip, 0, strlen($config['ipcrypt_prefix']) + 1) === $config['ipcrypt_prefix'].':') {
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$plaintext = openssl_decrypt(base32_decode($juice), 'rc4-40', $ipcrypt_key, OPENSSL_RAW_DATA);
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if ($plaintext === false || strlen($plaintext) == 0)
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return '#ERROR';
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if (strlen($ip) >= 16)
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return inet_ntop($plaintext);
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else
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return long2ip(unpack('N', $plaintext)[1]);
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}
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return '#ERROR';
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}
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function cloak_mask($mask) {
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list($net, $block) = explode('/', $mask, 2);
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$mask = cloak_ip($net);
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if ($block) {
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$mask .= '/'.$block;
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}
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return $mask;
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}
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function uncloak_mask($mask) {
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list($addr, $block) = explode('/', $mask, 2);
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$mask = uncloak_ip($addr);
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if ($mask === '#ERROR') {
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$mask = $addr;
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}
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if ($block) {
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$mask .= '/'.$block;
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}
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return $mask;
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}
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@ -28,6 +28,8 @@ class Twig_Extensions_Extension_Tinyboard extends Twig_Extension
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new Twig_SimpleFilter('push', 'twig_push_filter'),
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new Twig_SimpleFilter('bidi_cleanup', 'bidi_cleanup'),
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new Twig_SimpleFilter('addslashes', 'addslashes'),
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new Twig_SimpleFilter('cloak_ip', 'cloak_ip'),
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new Twig_SimpleFilter('cloak_mask', 'cloak_mask'),
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);
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}
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@ -773,7 +773,8 @@ function mod_view_thread50($boardName, $thread) {
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echo $page;
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}
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function mod_ip_remove_note($ip, $id) {
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function mod_ip_remove_note($cloaked_ip, $id) {
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$ip = uncloak_ip($cloaked_ip);
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global $config, $mod;
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if (!hasPermission($config['mod']['remove_notes']))
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@ -787,12 +788,13 @@ function mod_ip_remove_note($ip, $id) {
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$query->bindValue(':id', $id);
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$query->execute() or error(db_error($query));
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modLog("Removed a note for <a href=\"?/IP/{$ip}\">{$ip}</a>");
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modLog("Removed a note for <a href=\"?/IP/{$cloaked_ip}\">{$cloaked_ip}</a>");
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header('Location: ?/IP/' . $ip . '#notes', true, $config['redirect_http']);
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header('Location: ?/IP/' . $cloaked_ip . '#notes', true, $config['redirect_http']);
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}
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function mod_page_ip($ip) {
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function mod_page_ip($cip) {
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$ip = uncloak_ip($cip);
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global $config, $mod;
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if (filter_var($ip, FILTER_VALIDATE_IP) === false)
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@ -804,7 +806,7 @@ function mod_page_ip($ip) {
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Bans::delete($_POST['ban_id'], true, $mod['boards']);
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header('Location: ?/IP/' . $ip . '#bans', true, $config['redirect_http']);
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header('Location: ?/IP/' . $cip . '#bans', true, $config['redirect_http']);
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return;
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}
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@ -821,9 +823,9 @@ function mod_page_ip($ip) {
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$query->bindValue(':body', $_POST['note']);
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$query->execute() or error(db_error($query));
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modLog("Added a note for <a href=\"?/IP/{$ip}\">{$ip}</a>");
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modLog("Added a note for <a href=\"?/IP/{$cip}\">{$cip}</a>");
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header('Location: ?/IP/' . $ip . '#notes', true, $config['redirect_http']);
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header('Location: ?/IP/' . $cip . '#notes', true, $config['redirect_http']);
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return;
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}
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@ -831,7 +833,7 @@ function mod_page_ip($ip) {
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$args['ip'] = $ip;
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$args['posts'] = array();
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if ($config['mod']['dns_lookup'])
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if ($config['mod']['dns_lookup'] && empty($config['ipcrypt_key']))
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$args['hostname'] = rDNS($ip);
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$boards = listBoards();
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@ -873,16 +875,16 @@ function mod_page_ip($ip) {
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if (hasPermission($config['mod']['modlog_ip'])) {
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$query = prepare("SELECT `username`, `mod`, `ip`, `board`, `time`, `text` FROM ``modlogs`` LEFT JOIN ``mods`` ON `mod` = ``mods``.`id` WHERE `text` LIKE :search ORDER BY `time` DESC LIMIT 50");
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$query->bindValue(':search', '%' . $ip . '%');
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$query->bindValue(':search', '%' . $cip . '%');
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$query->execute() or error(db_error($query));
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$args['logs'] = $query->fetchAll(PDO::FETCH_ASSOC);
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} else {
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$args['logs'] = array();
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}
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$args['security_token'] = make_secure_link_token('IP/' . $ip);
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$args['security_token'] = make_secure_link_token('IP/' . $cip);
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mod_page(sprintf('%s: %s', _('IP'), htmlspecialchars($ip)), 'mod/view_ip.html', $args, $args['hostname']);
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mod_page(sprintf('%s: %s', _('IP'), htmlspecialchars($cip)), 'mod/view_ip.html', $args, $args['hostname'] ?? null);
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}
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function mod_ban() {
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@ -974,7 +976,7 @@ function mod_ban_appeals() {
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error(_('Ban appeal not found!'));
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}
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$ban['mask'] = Bans::range_to_string(array($ban['ipstart'], $ban['ipend']));
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$ban['mask'] = cloak_mask(Bans::range_to_string(array($ban['ipstart'], $ban['ipend'])));
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if (isset($_POST['unban'])) {
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modLog('Accepted ban appeal #' . $ban['id'] . ' for ' . $ban['mask']);
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@ -1751,7 +1753,8 @@ function mod_deletebyip($boardName, $post, $global = false) {
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}
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// Record the action
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modLog("Deleted all posts by IP address: <a href=\"?/IP/$ip\">$ip</a>");
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$cip = cloak_ip($ip);
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modLog("Deleted all posts by IP address: <a href=\"?/IP/$cip\">$cip</a>");
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// Redirect
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header('Location: ?/' . sprintf($config['board_path'], $boardName) . $config['file_index'], true, $config['redirect_http']);
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@ -2210,7 +2213,7 @@ function mod_reports() {
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$reports = $query->fetchAll(PDO::FETCH_ASSOC);
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$report_queries = array();
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foreach ($reports as $report) {
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foreach ($reports as &$report) {
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if (!isset($report_queries[$report['board']]))
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$report_queries[$report['board']] = array();
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$report_queries[$report['board']][] = $report['post'];
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@ -2308,9 +2311,9 @@ function mod_report_dismiss($id, $all = false) {
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}
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$query->execute() or error(db_error($query));
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$cip = cloak_ip($ip);
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if ($all)
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modLog("Dismissed all reports by <a href=\"?/IP/$ip\">$ip</a>");
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modLog("Dismissed all reports by <a href=\"?/IP/$cip\">$cip</a>");
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else
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modLog("Dismissed a report for post #{$id}", $board);
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@ -16,7 +16,7 @@
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{% if mod|hasPermission(config.mod.show_ip, board.uri) %}
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<tr>
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<th>{% trans 'IP' %}</th>
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<td>{{ ban.mask }}</td>
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<td>{{ ban.mask|cloak_mask }}</td>
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</tr>
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{% endif %}
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<tr>
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@ -21,7 +21,7 @@
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</th>
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<td>
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{% if not hide_ip %}
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<input type="text" name="ip" id="ip" size="30" maxlength="40" value="{{ ip|e }}">
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<input type="text" name="ip" id="ip" size="30" maxlength="40" value="{{ ip|cloak_ip|e }}">
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{% else %}
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<em>{% trans 'hidden' %}</em>
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{% endif %}
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@ -27,7 +27,7 @@
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</td>
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<td class="minimal">
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{% if mod|hasPermission(config.mod.show_ip_modlog) %}
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<a href="?/IP/{{ log.ip }}">{{ log.ip }}</a>
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<a href="?/IP/{{ log.ip|cloak_ip }}">{{ log.ip|cloak_ip }}</a>
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{% else %}
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<em>hidden</em>
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{% endif %}
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@ -7,7 +7,7 @@
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{% trans 'Report date' %}: {{ report.time|date(config.post_date) }}
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<br>
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{% if mod|hasPermission(config.mod.show_ip, report.board) %}
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{% trans 'Reported by' %}: <a href="?/IP/{{ report.ip }}">{{ report.ip }}</a>
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{% trans 'Reported by' %}: <a href="?/IP/{{ report.ip|cloak_ip }}">{{ report.ip|cloak_ip }}</a>
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<br>
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{% endif %}
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{% if mod|hasPermission(config.mod.report_dismiss, report.board) or mod|hasPermission(config.mod.report_dismiss_ip, report.board) %}
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@ -21,7 +21,7 @@
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{% for note in results %}
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<tr>
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<td class="minimal">
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<a href="?/IP/{{ note.ip }}#notes">{{ note.ip }}</a>
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<a href="?/IP/{{ note.ip|cloak_ip }}#notes">{{ note.ip|cloak_ip }}</a>
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</td>
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<td class="minimal">
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{% if note.username %}
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@ -57,9 +57,9 @@
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<tr{% if ban.expires != 0 and ban.expires < time() %} style="text-decoration:line-through"{% endif %}>
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<td style="white-space: nowrap">
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{% if ban.single_addr %}
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<a href="?/IP/{{ ban.mask }}#bans">{{ ban.mask }}</a>
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<a href="?/IP/{{ ban.mask|cloak_mask }}#bans">{{ ban.mask|cloak_mask }}</a>
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{% else %}
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{{ ban.mask|e }}
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{{ ban.mask|cloak_mask|e }}
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{% endif %}
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</td>
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<td>
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@ -148,7 +148,7 @@
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{% endif %}
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</td>
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<td class="minimal">
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<a href="?/IP/{{ log.ip }}">{{ log.ip }}</a>
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<a href="?/IP/{{ log.ip|cloak_ip }}">{{ log.ip|cloak_ip }}</a>
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</td>
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<td class="minimal">
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<span title="{{ log.time|date(config.post_date) }}">{{ log.time|ago }}</span>
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@ -210,8 +210,8 @@
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</td>
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<td class="minimal">
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{% if mod|hasPermission(config.mod.show_ip, post.board) %}
|
||||
<a href="?/IP/{{ post.ip }}">
|
||||
{{ post.ip }}
|
||||
<a href="?/IP/{{ post.ip|cloak_ip }}">
|
||||
{{ post.ip|cloak_ip }}
|
||||
</a>
|
||||
{% else %}
|
||||
<em>hidden</em>
|
||||
|
||||
@ -98,7 +98,7 @@
|
||||
{% for log in logs %}
|
||||
<tr>
|
||||
<td class="minimal">
|
||||
<a href="?/IP/{{ log.ip }}">{{ log.ip }}</a>
|
||||
<a href="?/IP/{{ log.ip|cloak_ip }}">{{ log.ip|cloak_ip }}</a>
|
||||
</td>
|
||||
<td class="minimal">
|
||||
<span title="{{ log.time|date(config.post_date) }}">{{ log.time|ago }}</span>
|
||||
|
||||
@ -45,7 +45,7 @@
|
||||
</td>
|
||||
{% if mod|hasPermission(config.mod.remove_notes) %}
|
||||
<td class="minimal">
|
||||
<a href="?/IP/{{ ip|url_encode(true) }}/remove_note/{{ note.id }}">
|
||||
<a href="?/IP/{{ ip|cloak_ip|url_encode(true) }}/remove_note/{{ note.id }}">
|
||||
<small>[{% trans 'remove' %}]</small>
|
||||
</a>
|
||||
</td>
|
||||
@ -102,7 +102,7 @@
|
||||
</tr>
|
||||
<tr>
|
||||
<th>{% trans 'IP' %}</th>
|
||||
<td>{{ ban.mask }}</td>
|
||||
<td>{{ ban.cmask }}</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<th>{% trans 'Reason' %}</th>
|
||||
@ -169,7 +169,7 @@
|
||||
{% if mod|hasPermission(config.mod.ban) %}
|
||||
<fieldset>
|
||||
<legend>{% trans 'New ban' %}</legend>
|
||||
{% set redirect = '?/IP/' ~ ip ~ '#bans' %}
|
||||
{% set redirect = '?/IP/' ~ ip|cloak_ip ~ '#bans' %}
|
||||
{% include 'mod/ban_form.html' %}
|
||||
</fieldset>
|
||||
{% endif %}
|
||||
|
||||
@ -1,3 +1,3 @@
|
||||
{% if post.mod and post.mod|hasPermission(config.mod.show_ip, board.uri) %}
|
||||
[<a class="ip-link" style="margin:0;" href="?/IP/{{ post.ip }}">{{ post.ip }}</a>]
|
||||
[<a class="ip-link" style="margin:0;" href="?/IP/{{ post.ip|cloak_ip }}">{{ post.ip|cloak_ip }}</a>]
|
||||
{% endif %}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user