<?php
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/*
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Copyright (c) 2007, Till Brehm, projektfarm Gmbh
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Copyright (c) 2012, Marius Cramer, pixcept KG
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of ISPConfig nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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class validate_domain {
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function get_error($errmsg) {
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global $app;
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if(isset($app->tform->wordbook[$errmsg])) {
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return $app->tform->wordbook[$errmsg]."<br>\r\n";
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} else {
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return $errmsg."<br>\r\n";
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}
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}
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/* Validator function for domain (website) */
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function web_domain($field_name, $field_value, $validator) {
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if(empty($field_value)) return $this->get_error('domain_error_empty');
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// do not allow wildcards on website domains
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$result = $this->_regex_validate($field_value);
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if(!$result) return $this->get_error('domain_error_regex');
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$result = $this->_check_unique($field_value);
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if(!$result) return $this->get_error('domain_error_unique');
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}
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/* Validator function for sub domain */
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function sub_domain($field_name, $field_value, $validator) {
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if(empty($field_value)) return $this->get_error('domain_error_empty');
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$allow_wildcard = $this->_wildcard_limit();
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if($allow_wildcard == false && substr($field_value, 0, 2) === '*.') return $this->get_error('domain_error_wildcard');
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$result = $this->_regex_validate($field_value, $allow_wildcard);
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if(!$result) return $this->get_error('domain_error_regex');
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$result = $this->_check_unique($field_value);
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if(!$result) return $this->get_error('domain_error_unique');
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}
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/* Validator function for alias domain */
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function alias_domain($field_name, $field_value, $validator) {
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if(empty($field_value)) return $this->get_error('domain_error_empty');
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// do not allow wildcards on alias domains
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$result = $this->_regex_validate($field_value);
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if(!$result) return $this->get_error('domain_error_regex');
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$result = $this->_check_unique($field_value);
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if(!$result) return $this->get_error('domain_error_unique');
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}
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/* Validator function for checking the auto subdomain of a web/aliasdomain */
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function web_domain_autosub($field_name, $field_value, $validator) {
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global $app;
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if(empty($field_value) || $field_name != 'subdomain') return; // none set
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$check_domain = $_POST['domain'];
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$app->uses('ini_parser,getconf');
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$settings = $app->getconf->get_global_config('domains');
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if ($settings['use_domain_module'] == 'y') {
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$sql = "SELECT domain_id, domain FROM domain WHERE domain_id = ?";
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$domain_check = $app->db->queryOneRecord($sql, $check_domain);
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if(!$domain_check) return;
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$check_domain = $domain_check['domain'];
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}
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$result = $this->_check_unique($field_value . '.' . $check_domain, true);
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if(!$result) return $this->get_error('domain_error_autosub');
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}
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/* Check apache directives */
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function web_apache_directives($field_name, $field_value, $validator) {
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global $app;
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if(trim($field_value) != '') {
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$security_config = $app->getconf->get_security_config('ids');
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if($security_config['apache_directives_scan_enabled'] == 'yes') {
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// Get blacklist
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$blacklist_path = '/usr/local/ispconfig/security/apache_directives.blacklist';
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if(is_file('/usr/local/ispconfig/security/apache_directives.blacklist.custom')) $blacklist_path = '/usr/local/ispconfig/security/apache_directives.blacklist.custom';
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if(!is_file($blacklist_path)) $blacklist_path = realpath(ISPC_ROOT_PATH.'/../security/apache_directives.blacklist');
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$directives = explode("\n",$field_value);
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$regex = explode("\n",file_get_contents($blacklist_path));
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$blocked = false;
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$blocked_line = '';
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if(is_array($directives) && is_array($regex)) {
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foreach($directives as $directive) {
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$directive = trim($directive);
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foreach($regex as $r) {
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if(preg_match(trim($r),$directive)) {
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$blocked = true;
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$blocked_line .= $directive.'<br />';
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};
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}
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}
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}
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}
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}
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if($blocked === true) {
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return $this->get_error('apache_directive_blocked_error').' '.$blocked_line;
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}
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}
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/* internal validator function to match regexp */
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function _regex_validate($domain_name, $allow_wildcard = false) {
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$pattern = '/^' . ($allow_wildcard == true ? '(\*\.)?' : '') . '[\w\.\-]{2,255}\.[a-zA-Z0-9\-]{2,30}$/';
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return preg_match($pattern, $domain_name);
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}
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/* check if the domain hostname is unique (keep in mind the auto subdomains!) */
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function _check_unique($domain_name, $only_domain = false) {
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global $app, $page;
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if(isset($app->remoting_lib->primary_id)) {
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$primary_id = $app->remoting_lib->primary_id;
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$domain = $app->remoting_lib->dataRecord;
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} else {
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$primary_id = $app->tform->primary_id;
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$domain = $page->dataRecord;
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}
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if($domain['ip_address'] == '' || $domain['ipv6_address'] == ''){
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if($domain['parent_domain_id'] > 0){
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$parent_domain = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ?", $domain['parent_domain_id']);
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}
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}
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// check if domain has alias/subdomains - if we move a web to another IP, make sure alias/subdomains are checked as well
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$aliassubdomains = $app->db->queryAllRecords("SELECT * FROM web_domain WHERE parent_domain_id = ? AND (type = 'alias' OR type = 'subdomain' OR type = 'vhostsubdomain')", $primary_id);
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$additional_sql1 = '';
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$additional_sql2 = '';
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$domain_params = array();
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if(is_array($aliassubdomains) && !empty($aliassubdomains)){
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foreach($aliassubdomains as $aliassubdomain){
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$additional_sql1 .= " OR d.domain = ?";
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$additional_sql2 .= " OR CONCAT(d.subdomain, '.', d.domain) = ?";
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$domain_params[] = $aliassubdomain['domain'];
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}
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}
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$qrystr = "SELECT d.domain_id, IF(d.parent_domain_id != 0 AND p.domain_id IS NOT NULL, p.ip_address, d.ip_address) as `ip_address`, IF(d.parent_domain_id != 0 AND p.domain_id IS NOT NULL, p.ipv6_address, d.ipv6_address) as `ipv6_address` FROM `web_domain` as d LEFT JOIN `web_domain` as p ON (p.domain_id = d.parent_domain_id) WHERE (d.domain = ?" . $additional_sql1 . ") AND d.server_id = ? AND d.domain_id != ?" . ($primary_id ? " AND d.parent_domain_id != ?" : "");
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$params = array($domain_name) + $domain_params + array($domain['server_id'], $primary_id, $primary_id);
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$checks = $app->db->queryAllRecords($qrystr, true, $params);
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if(is_array($checks) && !empty($checks)){
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foreach($checks as $check){
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if($domain['ip_address'] == '*') return false;
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if($check['ip_address'] == '*') return false;
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if($domain['ip_address'] != '' && $check['ip_address'] == $domain['ip_address']) return false;
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if($domain['ipv6_address'] != '' && $check['ipv6_address'] == $domain['ipv6_address']) return false;
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}
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}
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if($only_domain == false) {
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$qrystr = "SELECT d.domain_id, IF(d.parent_domain_id != 0 AND p.domain_id IS NOT NULL, p.ip_address, d.ip_address) as `ip_address`, IF(d.parent_domain_id != 0 AND p.domain_id IS NOT NULL, p.ipv6_address, d.ipv6_address) as `ipv6_address` FROM `web_domain` as d LEFT JOIN `web_domain` as p ON (p.domain_id = d.parent_domain_id) WHERE (CONCAT(d.subdomain, '.', d.domain)= ?" . $additional_sql2 . ") AND d.server_id = ? AND d.domain_id != ?" . ($primary_id ? " AND d.parent_domain_id != ?" : "");
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$params = array($domain_name) + $domain_params + array($domain['server_id'], $primary_id, $primary_id);
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$checks = $app->db->queryAllRecords($qrystr, true, $params);
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if(is_array($checks) && !empty($checks)){
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foreach($checks as $check){
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if($domain['ip_address'] == '*') return false;
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if($check['ip_address'] == '*') return false;
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if($domain['ip_address'] != '' && $check['ip_address'] == $domain['ip_address']) return false;
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if($domain['ipv6_address'] != '' && $check['ipv6_address'] == $domain['ipv6_address']) return false;
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}
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}
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}
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return true;
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}
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/* check if the client may add wildcard domains */
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function _wildcard_limit() {
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global $app;
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if($_SESSION["s"]["user"]["typ"] != 'admin') {
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// Get the limits of the client
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$client_group_id = $app->functions->intval($_SESSION["s"]["user"]["default_group"]);
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$client = $app->db->queryOneRecord("SELECT limit_wildcard FROM sys_group, client WHERE sys_group.client_id = client.client_id and sys_group.groupid = ?", $client_group_id);
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if($client["limit_wildcard"] == 'y') return true;
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else return false;
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}
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return true; // admin may always add wildcard domain
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}
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}
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