583 lines
18 KiB
PHP
583 lines
18 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.sourceforge.net/projects/lam)
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Copyright (C) 2008 Thomas Manninger
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2008 - 2009 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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* Initializes the module after it became part of an {@link accountContainer}
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*
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* Calling this method requires the existence of an enclosing {@link accountContainer}.
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*
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* @param string $base the name of the {@link accountContainer} object ($_SESSION[$base])
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*/
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public function init($base) {
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parent::init($base);
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$this->attributes = &$this->getAccountContainer()->getAccountModule('dhcp_settings')->attributes;
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$this->orig = &$this->getAccountContainer()->getAccountModule('dhcp_settings')->orig;
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}
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public function get_metaData() {
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$return = array();
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// manages host accounts
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$return["account_types"] = array("dhcp");
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// alias name
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$return["alias"] = _("DDNS");
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// this is a base module
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$return["is_base"] = false;
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// RDN attribute
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$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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) , '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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) , '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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) , '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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) , '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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) , 'zone' => array(
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"Headline" => _("Zone names"),
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"Text" => _("Zone names for the DNS server (e.g. company.local).")
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) , 'zone_reverse' => array(
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"Headline" => _("Reverse zone names"),
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"Text" => ("Name of the reverse zones of the DNS server (e.g. 0.168.192.in-addr.arpa).")
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) ,);
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// available PDF fields
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$return['PDF_fields'] = array(
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'DNSserver',
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'zone',
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'reverseZone',
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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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$this->messages['zone'][0] = array('ERROR', 'Please enter a zone name.');
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$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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if ($this->getAccountContainer()->dn_orig==$_SESSION['config']->get_suffix('dhcp')) {
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// check if DHCP main settings and valid DHCP entry
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if (!in_array_ignore_case('dhcpServer', $this->attributes['objectClass'])) {
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return false;
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}
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//Main settings
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if ($this->isDynDNSActivated() && (($this->getUpdateKey() == null) || ($this->getUpdateKey() == ''))) {
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return false;
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}
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}
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else {
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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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* 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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$ldap = $_SESSION['ldap']->server();
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$dn = $_SESSION['config']->get_suffix('dhcp');
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$search = ldap_search($ldap,$dn,"dhcpStatements=ddns-update-style interim");
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$info = ldap_get_entries($ldap,$search);
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if ($info['count'] == 0) {
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return false;
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}
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else {
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return true;
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}
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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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$errors = array();
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// Main Settings and Account have to different processes.
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if ($_SESSION['account']->getAccountModule('dhcp_settings')->dn==$_SESSION['config']->get_suffix('dhcp')) {
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// main settings:
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$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('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($key_path);
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// key path must be insert, when ddns is active
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if ($active == 'on' && empty($key_path)) {
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$errors[] = $this->messages['key_path'][0];
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}
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elseif (!empty($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($zone)) {
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$this->attributes['dhcpStatements'][] = "zone {$zone}. { primary {$ip}; key DHCP_UPDATER; }";
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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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$this->attributes['dhcpStatements'][] = "zone {$zone_reverse}. { primary {$ip}; key DHCP_UPDATER; }";
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}
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else {
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if (!empty($ip)) {
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$errors[] = $this->messages['zone_reverse'][0];
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}
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}
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return $errors;
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}
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/**
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* Returns the HTML meta data for the main account page.
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*
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* @return array HTML meta data
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*/
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public function display_html_attributes() {
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// check if DHCP main settings and valid DHCP entry
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if ($_SESSION['config']->get_suffix('dhcp') == $this->getAccountContainer()->dn_orig) {
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if (!in_array_ignore_case('dhcpServer', $this->attributes['objectClass'])) {
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StatusMessage("ERROR", _('Please set your LDAP suffix to an LDAP entry with object class "dhcpServer".'));
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return array();
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}
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}
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if ($_SESSION['account']->getAccountModule('dhcp_settings')->dn==$_SESSION['config']->get_suffix('dhcp')) {
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// DHCP main settings
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$return[] = array(
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array('kind' => 'text', 'text' => _('Activate DynDNS') . ":* "),
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array('kind' => 'input', 'type' => 'checkbox', 'name' => 'active', 'checked' => $this->isDynDNSActivated()),
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array('kind' => 'help', 'value' => 'active', 'scope' => 'user'));
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$return[] = array(
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array('kind' => 'text', 'text' => _('Add fix IP addresses to DNS') . ":* "),
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array('kind' => 'input', 'type' => 'checkbox', 'name' => 'insert_fixed', 'checked' => $this->addFixIPs()),
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array('kind' => 'help', 'value' => 'fixed_ips', 'scope' => 'user'));
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$return[] = array(
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array('kind' => 'text', 'text' => _('Disable client updates') . ":* "),
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array('kind' => 'input', 'type' => 'checkbox', 'name' => 'client_insert', 'checked' => $this->isIgnoreClientUpdates()),
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array('kind' => 'help', 'value' => 'client_insert', 'scope' => 'user'));
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$return[] = array(
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array('kind' => 'text', 'text' => _('Path to key for DNS updates') . ":* "),
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array('kind' => 'input', 'type' => 'text', 'name' => 'key_path', 'value' => $this->getUpdateKey()),
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array('kind' => 'help', 'value' => 'keypath', 'scope' => 'user'));
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}
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else {
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// Account edit
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if (!$this->check_if_ddns_is_enable()) {
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echo _("DDNS ist not activated. You can activate it in the DHCP settings (DDNS).") . "<br/><br/>";
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}
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else {
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$return[] = array(
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array('kind' => 'text', 'text' => _('IP address of the DNS server') . ":* "),
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array('kind' => 'input', 'type' => 'text', 'name' => 'ip', 'value' => $this->getDNSServer()),
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array('kind' => 'help', 'value' => 'dns', 'scope' => 'user'));
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$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 = $zones[1];
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}
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$return[] = array(
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array('kind' => 'text', 'text' => _('Zone names') . ":* "),
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array('kind' => 'input', 'type' => 'text', 'name' => 'zone', 'value' => $zone),
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array('kind' => 'help', 'value' => 'zone', 'scope' => 'user'));
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$return[] = array(
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array('kind' => 'text', 'text' => _('Reverse zone names') . ":* "),
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array('kind' => 'input', 'type' => 'text', 'name' => 'zone_reverse', 'value' => $revzone),
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array('kind' => 'help', 'value' => 'zone_reverse', 'scope' => 'user'));
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}
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}
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echo _("Attention: The DHCP service needs to be restarted after changes in DDNS.") . "<br />";
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return $return;
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}
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/**
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* Returns the PDF entries for this module.
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*
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* @return array list of possible PDF entries
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*/
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public function get_pdfEntries() {
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$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 = $zones[1];
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}
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return array(
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get_class($this) . '_DNSserver' => array('<block><key>' . _('IP address of the DNS server') . '</key><value>' . $this->getDNSServer() . '</value></block>'),
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get_class($this) . '_zone' => array('<block><key>' . _('Zone names') . '</key><value>' . $zone . '</value></block>'),
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get_class($this) . '_reverseZone' => array('<block><key>' . _('Reverse zone names') . '</key><value>' . $revzone . '</value></block>'),
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);
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}
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/**
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* Returns the IP of the DNS server.
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*
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* @return String IP address
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*/
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private function getDNSServer() {
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$return = null;
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if (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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return array_shift(explode(";",array_pop(explode(". { primary ", $this->attributes['dhcpStatements'][$i]))));
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}
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}
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}
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return $return;
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}
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/**
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* Returns the zone names.
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*
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* @return array zone names
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*/
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private function getZoneNames() {
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$return = array();
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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'][$i], 0, 5) == 'zone ') {
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$return[] = substr(array_shift(explode(" ",substr($this->attributes['dhcpStatements'][$i],5))),0,-1);
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}
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}
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}
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return $return;
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}
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/**
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* Returns if DDNS is activated.
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*
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* @return boolean activated
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*/
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private function isDynDNSActivated() {
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$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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* $activated boolean activated
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*/
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private function setDynDNSActivated($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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$this->attributes['dhcpStatements'][] = 'ddns-update-style interim';
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}
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else {
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$this->attributes['dhcpStatements'][] = 'ddns-update-style none';
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}
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}
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/**
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* Returns if fixed IPs are added to DDNS.
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*
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* @return boolean add fixed IPs
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*/
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private function addFixIPs() {
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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'][$i] == 'update-static-leases true') {
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$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 client updates are ignored.
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*
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* $add boolean add fixed IPs
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*/
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private function setFixIPs($add) {
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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'][$i], 0, 21) == 'update-static-leases ') {
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unset($this->attributes['dhcpStatements'][$i]);
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$this->attributes['dhcpStatements'] = array_values($this->attributes['dhcpStatements']);
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}
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}
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}
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if ($add) {
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$this->attributes['dhcpStatements'][] = 'update-static-leases true';
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}
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}
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/**
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* Returns if client updates are ignored.
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*
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* @return boolean ignore client updates
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*/
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private function isIgnoreClientUpdates() {
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$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'][$i] == 'ignore client-updates') {
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$return = true;
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break;
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}
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}
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}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Sets if client updates are ignored.
|
|
*
|
|
* $ignore boolean ignore client updates
|
|
*/
|
|
private function setIgnoreClientUpdates($ignore) {
|
|
if (is_array($this->attributes['dhcpStatements'])) {
|
|
for ($i = 0; $i < sizeof($this->attributes['dhcpStatements']); $i++) {
|
|
if ($this->attributes['dhcpStatements'][$i] == 'ignore client-updates') {
|
|
unset($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.
|
|
*
|
|
* $key String key
|
|
*/
|
|
private function setUpdateKey($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
|
|
}
|
|
|
|
}
|
|
|
|
?>
|