675 lines
20 KiB
PHP
675 lines
20 KiB
PHP
<?php
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/*
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$Id$
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This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
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Copyright (C) 2008 Thomas Manninger
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2008 - 2017 Roland Gruber
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* Manages DDNS entries.
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*
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* @package modules
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*
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* @author Thomas Manninger
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* @author Roland Gruber
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*/
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/**
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* Manages DDNS entries.
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*
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* @package modules
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*/
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class ddns extends baseModule {
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/** standard DDNS settings */
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public $ddns = array();
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/**
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* Returns true if this module can manage accounts of the current type, otherwise false.
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*
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* @return boolean true if module fits
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*/
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public function can_manage() {
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return in_array($this->get_scope(), array('dhcp'));
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}
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/**
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* Returns meta data that is interpreted by parent class.
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*
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* @return array array with meta data
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*/
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public function get_metaData() {
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$return = array();
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// alias name
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$return["alias"] = _("DDNS");
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// this is a base module
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$return["is_base"] = false;
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// icon
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$return['icon'] = 'dhcpBig.png';
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// RDN attribute
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$return["RDN"] = array("cn" => "high");
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// LDAP filter
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$return["ldap_filter"] = array();
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// module dependencies
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$return['dependencies'] = array('depends' => array('dhcp_settings'), 'conflicts' => array());
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// managed object classes
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$return['objectClasses'] = array();
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// managed attributes
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$return['attributes'] = array('dhcpOption', 'dhcpStatements');
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// help Entries
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$return['help'] = array(
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'active' => array(
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"Headline" => _("Activate DynDNS"),
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"Text" => _("Should DDNS (Dynamic DNS) be activated?")
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),
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'fixed_ips' => array(
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"Headline" => _("Fix IP addresses"),
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"Text" => _("Should fix IP addresses be added to the DNS server?")
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),
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'client_insert' => array(
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"Headline" => _("Disable client updates"),
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"Text" => _("Disables the client to update DNS entries.")
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),
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'keypath' => array(
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"Headline" => _("Path to key for DNS updates"),
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"Text" => _("The key enables the DHCP server to perform DNS updates." .
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" " . "The key is generated with \"genDDNSkey\".")
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),
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'dns' => array(
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"Headline" => _("IP address of the DNS server"),
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"Text" => _("Please enter the IP address of your DNS server.")
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),
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'zone' => array(
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"Headline" => _("Zone name"),
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"Text" => _("Zone name for the DNS server (e.g. company.local).")
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),
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'zone_reverse' => array(
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"Headline" => _("Reverse zone name"),
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"Text" => ("Name of the reverse zone of the DNS server (e.g. 0.168.192.in-addr.arpa).")
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),
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);
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// available PDF fields
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$return['PDF_fields'] = array(
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'DNSserver' => _('IP address of the DNS server'),
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'zone' => _('Zone name'),
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'reverseZone' => _('Reverse zone name'),
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);
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// upload fields
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if (isLoggedIn() && $this->check_if_ddns_is_enable()) {
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$return['upload_columns'] = array(
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array(
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'name' => 'ddns_DNSserver',
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'description' => _('IP address of the DNS server'),
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'help' => 'dns',
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'example' => '123.123.123.123',
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'required' => true
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),
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array(
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'name' => 'ddns_zone',
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'description' => _('Zone name'),
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'help' => 'zone',
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'example' => 'company.local',
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'required' => true
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),
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array(
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'name' => 'ddns_reverseZone',
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'description' => _('Reverse zone name'),
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'help' => 'zone_reverse',
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'example' => '0.168.192.in-addr.arpa',
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'required' => true
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),
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);
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}
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return $return;
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}
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/**
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* This function fills the message array.
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*/
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public function load_Messages() {
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$this->messages['key_path'][0] = array('ERROR', 'Please enter the path to the key.', '');
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$this->messages['key_path'][1] = array('ERROR', 'The key path contains invalid characters.', '');
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$this->messages['ip'][0] = array('ERROR', 'The IP address of the DNS server is invalid.');
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$this->messages['ip'][1] = array('ERROR', _('Account %s:') . ' ddns_DNSserver', 'The IP address of the DNS server is invalid.');
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$this->messages['zone'][0] = array('ERROR', 'Please enter a zone name.');
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$this->messages['zone_reverse'][0] = array('ERROR', 'Please enter the reverse zone.');
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}
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/**
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* This functions returns true if all needed settings are done.
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*
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* @return boolean true if LDAP operation can be done
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*/
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public function module_complete() {
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$this->attributes = &$this->getAccountContainer()->getAccountModule('dhcp_settings')->attributes;
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$this->orig = &$this->getAccountContainer()->getAccountModule('dhcp_settings')->orig;
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if ($this->isRootNode()) {
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// check if DHCP main settings and valid DHCP entry
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if (!in_array_ignore_case('dhcpService', $this->attributes['objectClass']) && !in_array_ignore_case('dhcpServer', $this->attributes['objectClass'])) {
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return false;
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}
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}
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else {
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if (!$this->check_if_ddns_is_enable()) {
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return true;
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}
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// Account settings
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$ip = $this->getDNSServer();
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if (!empty($ip) && !check_ip($ip)) return false;
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$zones = $this->getZoneNames();
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if (sizeof($zones) < 2) {
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return false;
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}
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}
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return true;
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}
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/**
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* Returns if the current DN is the root entry.
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*
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* @return bool is root
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*/
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private function isRootNode() {
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$rootSuffix = $this->getAccountContainer()->get_type()->getSuffix();
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return $this->getAccountContainer()->dn_orig == $rootSuffix;
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}
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/**
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* Returns a list of modifications which have to be made to the LDAP account.
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*
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* @return array list of modifications
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* <br>This function returns an array with 3 entries:
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* <br>array( DN1 ('add' => array($attr), 'remove' => array($attr), 'modify' => array($attr)), DN2 .... )
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* <br>DN is the DN to change. It may be possible to change several DNs (e.g. create a new user and add him to some groups via attribute memberUid)
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* <br>"add" are attributes which have to be added to LDAP entry
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* <br>"remove" are attributes which have to be removed from LDAP entry
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* <br>"modify" are attributes which have to been modified in LDAP entry
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* <br>"info" are values with informational value (e.g. to be used later by pre/postModify actions)
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*/
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public function save_attributes() {
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// done by dhcp_server object
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}
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/**
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* This function check if ddns is enable.
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*/
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private function check_if_ddns_is_enable() {
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if ($this->getAccountContainer() == null) {
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return false;
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}
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$type = $this->getAccountContainer()->get_type();
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if ($type == null) {
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return false;
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}
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$suffix = $type->getSuffix();
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$results = searchLDAP($suffix, "dhcpStatements=ddns-update-style interim", array('dn'));
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return (!empty($results));
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}
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/**
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* Processes user input of the primary module page.
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* It checks if all input values are correct and updates the associated LDAP attributes.
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*
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* @return array list of info/error messages
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*/
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public function process_attributes() {
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$errors = array();
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// Main Settings and Account have to different processes.
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if ($this->isRootNode()) {
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// main settings:
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$errors = $this->process_attributes_mainSettings();
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}
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else {
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// account
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if (!$this->check_if_ddns_is_enable()) {
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return array();
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}
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$errors = $this->process_attributes_account();
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}
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return $errors;
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}
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/**
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* Process for mainsettings
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*/
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public function process_attributes_mainSettings() {
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if (!in_array_ignore_case('dhcpService', $this->attributes['objectClass']) && !in_array_ignore_case('dhcpServer', $this->attributes['objectClass'])) {
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return array();
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}
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$errors = array();
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// Is DDNS active?
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$active = $_POST['active'];
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// Insert fixed IPs into DNS?
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$insert_fixed = $_POST['insert_fixed'];
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// Client can contribute which is registered into DNS
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$client_insert = $_POST['client_insert'];
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// The path to the key:
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$key_path = trim($_POST['key_path']);
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$this->setDynDNSActivated(($active == 'on'));
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$this->setFixIPs(($insert_fixed == 'on'));
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$this->setIgnoreClientUpdates(($client_insert == 'on'));
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$this->setUpdateKey($key_path);
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if (!empty($key_path)) {
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if (str_replace("\"","",$_POST['key_path']) != $key_path) {
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$errors[] = $this->messages['key_path'][1];
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}
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}
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return $errors;
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}
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/**
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* Process for account
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*/
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public function process_attributes_account() {
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$errors = array();
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$ip = trim($_POST['ip']);
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$zone = trim($_POST['zone']);
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$zone_reverse = trim($_POST['zone_reverse']);
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// ip correct???
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if (!empty($ip)) {
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if (!check_ip($ip)) {
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$errors[] = $this->messages['ip'][0];
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}
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}
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for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
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if (substr($this->attributes['dhcpStatements'][$i], 0, 5) == 'zone ') {
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unset($this->attributes['dhcpStatements'][$i]);
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$this->attributes['dhcpStatements'] = array_values($this->attributes['dhcpStatements']);
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$i--;
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}
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}
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// Zone inserted?
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if (!empty($zone)) {
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if (!empty($ip)) {
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$this->attributes['dhcpStatements'][] = "zone {$zone}. { primary {$ip}; key DHCP_UPDATER; }";
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}
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else {
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$this->attributes['dhcpStatements'][] = "zone {$zone}. { key DHCP_UPDATER; }";
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}
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}
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else {
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if (!empty($ip)) {
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$errors[] = $this->messages['zone'][0];
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}
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}
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// Zone reverse inserted?
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if (!empty($zone_reverse)) {
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if (!empty($ip)) {
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$this->attributes['dhcpStatements'][] = "zone {$zone_reverse}. { primary {$ip}; key DHCP_UPDATER; }";
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}
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else {
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$this->attributes['dhcpStatements'][] = "zone {$zone_reverse}. { key DHCP_UPDATER; }";
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}
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}
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else {
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if (!empty($ip)) {
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$errors[] = $this->messages['zone_reverse'][0];
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}
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}
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return $errors;
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}
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/**
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* Returns the HTML meta data for the main account page.
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*
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* @return htmlElement HTML meta data
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*/
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public function display_html_attributes() {
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$this->attributes = &$this->getAccountContainer()->getAccountModule('dhcp_settings')->attributes;
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$this->orig = &$this->getAccountContainer()->getAccountModule('dhcp_settings')->orig;
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$return = new htmlTable();
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// check if DHCP main settings and valid DHCP entry
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if ($this->isRootNode()) {
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if (!in_array_ignore_case('dhcpService', $this->attributes['objectClass']) && !in_array_ignore_case('dhcpServer', $this->attributes['objectClass'])) {
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$return->addElement(new htmlStatusMessage('ERROR', _('Please set your LDAP suffix to an LDAP entry with object class "dhcpService" or "dhcpServer".')));
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return $return;
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}
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// DHCP main settings
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$return->addElement(new htmlTableExtendedInputCheckbox('active', $this->isDynDNSActivated(), _('Activate DynDNS'), 'active'), true);
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$return->addElement(new htmlTableExtendedInputCheckbox('insert_fixed', $this->addFixIPs(), _('Add fix IP addresses to DNS'), 'fixed_ips'), true);
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$return->addElement(new htmlTableExtendedInputCheckbox('client_insert', $this->isIgnoreClientUpdates(), _('Disable client updates'), 'client_insert'), true);
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$keyInput = new htmlTableExtendedInputField(_('Path to key for DNS updates'), 'key_path', $this->getUpdateKey(), 'keypath');
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$return->addElement($keyInput);
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}
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else {
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// Account edit
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if (!$this->check_if_ddns_is_enable()) {
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$return->addElement(new htmlOutputText(_("DDNS ist not activated. You can activate it in the DHCP settings (DDNS).")));
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}
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else {
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// DNS server
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$serverInput = new htmlTableExtendedInputField(_('IP address of the DNS server'), 'ip', $this->getDNSServer(), 'dns');
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$return->addElement($serverInput, true);
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$zones = $this->getZoneNames();
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$zone = '';
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$revzone = '';
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if (isset($zones[0])) {
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$zone = $zones[0];
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}
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if (isset($zones[1])) {
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$revzone = $zones[1];
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}
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// zone name
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$zoneInput = new htmlTableExtendedInputField(_('Zone name'), 'zone', $zone, 'zone');
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$return->addElement($zoneInput, true);
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// reverse zone name
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$revZoneInput = new htmlTableExtendedInputField(_('Reverse zone name'), 'zone_reverse', $revzone, 'zone_reverse');
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$return->addElement($revZoneInput);
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}
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}
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return $return;
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}
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/**
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* {@inheritDoc}
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* @see baseModule::get_pdfEntries()
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*/
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public function get_pdfEntries($pdfKeys, $typeId) {
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// attributes are taken from DHCP server object
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$this->attributes = &$this->getAccountContainer()->getAccountModule('dhcp_settings')->attributes;
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$this->orig = &$this->getAccountContainer()->getAccountModule('dhcp_settings')->orig;
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$zones = $this->getZoneNames();
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$zone = '';
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$revzone = '';
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if (isset($zones[0])) {
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$zone = $zones[0];
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}
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if (isset($zones[1])) {
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$revzone = $zones[1];
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}
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$result = array();
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$this->addPDFKeyValue($result, 'DNSserver', _('IP address of the DNS server'), $this->getDNSServer());
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$this->addPDFKeyValue($result, 'zone', _('Zone name'), $zone);
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$this->addPDFKeyValue($result, 'reverseZone', _('Reverse zone name'), $revzone);
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return $result;
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}
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/**
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* Returns the IP of the DNS server.
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*
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* @return String IP address
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*/
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private function getDNSServer() {
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$return = null;
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if (isset($this->attributes['dhcpStatements'][0])) {
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for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
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if (substr($this->attributes['dhcpStatements'][$i], 0, 5) == 'zone ') {
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if (strpos($this->attributes['dhcpStatements'][$i], ' primary ') === false) {
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continue;
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}
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$parts = explode(". { primary ", $this->attributes['dhcpStatements'][$i]);
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$temp = array_pop($parts);
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$temp = explode(";", $temp);
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return array_shift($temp);
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}
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}
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}
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return $return;
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}
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/**
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* Returns the zone names.
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*
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* @return array zone names array(zone, reverse zone)
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*/
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private function getZoneNames() {
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$return = array();
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$zone = '';
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$revZone = '';
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if (is_array($this->attributes['dhcpStatements'])) {
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for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
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if (substr($this->attributes['dhcpStatements'][$i], 0, 5) == 'zone ') {
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$parts = explode(" ",substr($this->attributes['dhcpStatements'][$i],5));
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$value = substr(array_shift($parts),0,-1);
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if (strpos($value, 'in-addr.arpa') === false) {
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$zone = $value;
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}
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else {
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$revZone = $value;
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}
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}
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}
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}
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$return[0] = $zone;
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$return[1] = $revZone;
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return $return;
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}
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/**
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* Returns if DDNS is activated.
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*
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* @return boolean activated
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*/
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private function isDynDNSActivated() {
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$return = false;
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if (is_array($this->attributes['dhcpStatements'])) {
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for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
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if ($this->attributes['dhcpStatements'][$i] == 'ddns-update-style interim') {
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$return = true;
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break;
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}
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}
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}
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return $return;
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}
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/**
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* Sets if DDNS is activated.
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*
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* @param boolean $activated activated
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*/
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private function setDynDNSActivated($activated) {
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if (is_array($this->attributes['dhcpStatements'])) {
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for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
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if (substr($this->attributes['dhcpStatements'][$i], 0, 18) == 'ddns-update-style ') {
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unset($this->attributes['dhcpStatements'][$i]);
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$this->attributes['dhcpStatements'] = array_values($this->attributes['dhcpStatements']);
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}
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}
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}
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if ($activated) {
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$this->attributes['dhcpStatements'][] = 'ddns-update-style interim';
|
|
}
|
|
else {
|
|
$this->attributes['dhcpStatements'][] = 'ddns-update-style none';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns if fixed IPs are added to DDNS.
|
|
*
|
|
* @return boolean add fixed IPs
|
|
*/
|
|
private function addFixIPs() {
|
|
$return = false;
|
|
if (is_array($this->attributes['dhcpStatements'])) {
|
|
for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
|
|
if ($this->attributes['dhcpStatements'][$i] == 'update-static-leases true') {
|
|
$return = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Sets if client updates are ignored.
|
|
*
|
|
* @param boolean $add add fixed IPs
|
|
*/
|
|
private function setFixIPs($add) {
|
|
if (is_array($this->attributes['dhcpStatements'])) {
|
|
for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
|
|
if (substr($this->attributes['dhcpStatements'][$i], 0, 21) == 'update-static-leases ') {
|
|
unset($this->attributes['dhcpStatements'][$i]);
|
|
$this->attributes['dhcpStatements'] = array_values($this->attributes['dhcpStatements']);
|
|
}
|
|
}
|
|
}
|
|
if ($add) {
|
|
$this->attributes['dhcpStatements'][] = 'update-static-leases true';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns if client updates are ignored.
|
|
*
|
|
* @return boolean ignore client updates
|
|
*/
|
|
private function isIgnoreClientUpdates() {
|
|
$return = false;
|
|
if (is_array($this->attributes['dhcpStatements'])) {
|
|
for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
|
|
if (preg_replace('/[ ]+/', ' ', $this->attributes['dhcpStatements'][$i]) == 'ignore client-updates') {
|
|
$return = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Sets if client updates are ignored.
|
|
*
|
|
* @param boolean $ignore ignore client updates
|
|
*/
|
|
private function setIgnoreClientUpdates($ignore) {
|
|
if (is_array($this->attributes['dhcpStatements'])) {
|
|
for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
|
|
if (preg_replace('/[ ]+/', ' ', $this->attributes['dhcpStatements'][$i]) == 'ignore client-updates') {
|
|
if ($ignore) {
|
|
return; // option already set, no change
|
|
}
|
|
unset($this->attributes['dhcpStatements'][$i]);
|
|
$this->attributes['dhcpStatements'] = array_values($this->attributes['dhcpStatements']);
|
|
}
|
|
}
|
|
}
|
|
if ($ignore) {
|
|
$this->attributes['dhcpStatements'][] = 'ignore client-updates';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the key for DNS updates.
|
|
*
|
|
* @return String key
|
|
*/
|
|
private function getUpdateKey() {
|
|
$return = null;
|
|
if (is_array($this->attributes['dhcpStatements'])) {
|
|
for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
|
|
if (substr($this->attributes['dhcpStatements'][$i], 0, 8) == 'include ') {
|
|
$return = substr($this->attributes['dhcpStatements'][$i],9, strlen($this->attributes['dhcpStatements'][$i]) - 10);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Sets the key for DNS updates.
|
|
*
|
|
* @param String $key key
|
|
*/
|
|
private function setUpdateKey($key) {
|
|
if (!is_array($this->attributes['dhcpStatements'])) {
|
|
$this->attributes['dhcpStatements'] = array();
|
|
}
|
|
for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
|
|
if (substr($this->attributes['dhcpStatements'][$i], 0, 8) == 'include ') {
|
|
unset($this->attributes['dhcpStatements'][$i]);
|
|
$this->attributes['dhcpStatements'] = array_values($this->attributes['dhcpStatements']);
|
|
}
|
|
}
|
|
if (($key != null) && ($key != '')) {
|
|
$this->attributes['dhcpStatements'][] = 'include "' . $key . '"';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This function loads the LDAP attributes when an account should be loaded.
|
|
*
|
|
* Calling this method requires the existence of an enclosing {@link accountContainer}.<br>
|
|
* <br>
|
|
* By default this method loads the object classes and accounts which are specified in {@link getManagedObjectClasses()}
|
|
* and {@link getManagedAttributes()}.
|
|
*
|
|
* @param array $attributes array like the array returned by get_ldap_attributes(dn of account) but without count indices
|
|
*/
|
|
public function load_attributes($attributes) {
|
|
// load nothing, attributes are saved in "dhcp_settings" module
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
* @see baseModule::build_uploadAccounts()
|
|
*/
|
|
function build_uploadAccounts($rawAccounts, $ids, &$partialAccounts, $selectedModules, &$type) {
|
|
$messages = array();
|
|
if (!$this->check_if_ddns_is_enable()) {
|
|
return $messages;
|
|
}
|
|
for ($i = 0; $i < sizeof($rawAccounts); $i++) {
|
|
// principal name
|
|
if (!check_ip($rawAccounts[$i][$ids['ddns_DNSserver']])) {
|
|
$error = $this->messages['ip'][1];
|
|
array_push($error, $i);
|
|
$messages[] = $error;
|
|
}
|
|
else {
|
|
$partialAccounts[$i]['dhcpStatements'][] = "zone {$rawAccounts[$i][$ids['ddns_zone']]}. { primary {$rawAccounts[$i][$ids['ddns_DNSserver']]}; key DHCP_UPDATER; }";
|
|
$partialAccounts[$i]['dhcpStatements'][] = "zone {$rawAccounts[$i][$ids['ddns_reverseZone']]}. { primary {$rawAccounts[$i][$ids['ddns_DNSserver']]}; key DHCP_UPDATER; }";
|
|
}
|
|
}
|
|
return $messages;
|
|
}
|
|
|
|
}
|
|
|
|
?>
|