installer_base.lib.php

<?php

/*
Copyright (c) 2007-2010, Till Brehm, projektfarm Gmbh
All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,
      this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright notice,
      this list of conditions and the following disclaimer in the documentation
      and/or other materials provided with the distribution.
    * Neither the name of ISPConfig nor the names of its contributors
      may be used to endorse or promote products derived from this software without
      specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

class installer_base {

	var $wb = array();
	var $language = 'en';
	var $db;
	public $conf;
	public $install_ispconfig_interface = true;
	public $is_update = false; // true if it is an update, falsi if it is a new install


	public function __construct() {
		global $conf; //TODO: maybe $conf  should be passed to constructor
		//$this->conf = $conf;
	}

	//: TODO  Implement the translation function and language files for the installer.
	public function lng($text) {
		return $text;
	}

	public function error($msg) {
		die('ERROR: '.$msg."\n");
	}

	public function simple_query($query, $answers, $default) {
		$finished = false;
		do {
			$answers_str = implode(',', $answers);
			swrite($this->lng($query).' ('.$answers_str.') ['.$default.']: ');
			$input = sread();

			//* Stop the installation
			if($input == 'quit') {
				swriteln($this->lng("Installation terminated by user.\n"));
				die();
			}

			//* Select the default
			if($input == '') {
				$answer = $default;
				$finished = true;
			}

			//* Set answer id valid
			if(in_array($input, $answers)) {
				$answer = $input;
				$finished = true;
			}

		} while ($finished == false);
		swriteln();
		return $answer;
	}

	public function free_query($query,$default) {
		swrite($this->lng($query).' ['.$default.']: ');
		$input = sread();

		//* Stop the installation
		if($input == 'quit') {
			swriteln($this->lng("Installation terminated by user.\n"));
			die();
		}

		$answer =  ($input == '') ? $default : $input;
		swriteln();
		return $answer;
	}

	/*
	// TODO: this function is not used atmo I think - pedro
	function request_language(){
		
		swriteln(lng('Enter your language'));
		swriteln(lng('de, en'));
		
	}
	*/

	//** Detect installed applications
	public function find_installed_apps() {
		global $conf;

		if(is_installed('mysql') || is_installed('mysqld')) $conf['mysql']['installed'] = true;
		if(is_installed('postfix')) $conf['postfix']['installed'] = true;
		if(is_installed('apache') || is_installed('apache2') || is_installed('httpd')) $conf['apache']['installed'] = true;
		if(is_installed('getmail')) $conf['getmail']['installed'] = true;
		if(is_installed('couriertcpd')) $conf['courier']['installed'] = true;
		if(is_installed('dovecot')) $conf['dovecot']['installed'] = true;
		if(is_installed('saslsauthd')) $conf['saslauthd']['installed'] = true;
		if(is_installed('amavisd-new')) $conf['amavis']['installed'] = true;
		if(is_installed('clamdscan')) $conf['clamav']['installed'] = true;
		if(is_installed('pure-ftpd') || is_installed('pure-ftpd-wrapper')) $conf['pureftpd']['installed'] = true;
		if(is_installed('mydns') || is_installed('mydns-ng')) $conf['mydns']['installed'] = true;
		if(is_installed('jk_chrootsh')) $conf['jailkit']['installed'] = true;
		if(is_installed('pdns_server') || is_installed('pdns_control')) $conf['powerdns']['installed'] = true;
		if(is_installed('named') || is_installed('bind') || is_installed('bind9')) $conf['bind']['installed'] = true;

	}

	/** Create the database for ISPConfig */
	public function configure_database() {
		global $conf;

		//** Create the database
		if(!$this->db->query('CREATE DATABASE IF NOT EXISTS '.$conf['mysql']['database'].' DEFAULT CHARACTER SET '.$conf['mysql']['charset'])) {
			$this->error('Unable to create MySQL database: '.$conf['mysql']['database'].'.');
		}

		//* Set the database name in the DB library
		$this->db->dbName = $conf['mysql']['database'];

		//* Load the database dump into the database, if database contains no tables
		$db_tables = $this->db->getTables();
		if(count($db_tables) > 0) {
			$this->error('Stopped: Database already contains some tables.');
		} else {
			if($conf['mysql']['admin_password'] == '') {
				caselog("mysql --default-character-set=".$conf['mysql']['charset']." -h '".$conf['mysql']['host']."' -u '".$conf['mysql']['admin_user']."' '".$conf['mysql']['database']."' < '".ISPC_INSTALL_ROOT."/install/sql/ispconfig3.sql' &> /dev/null",
						__FILE__, __LINE__, 'read in ispconfig3.sql', 'could not read in ispconfig3.sql');
			} else {
				caselog("mysql --default-character-set=".$conf['mysql']['charset']." -h '".$conf['mysql']['host']."' -u '".$conf['mysql']['admin_user']."' -p'".$conf['mysql']['admin_password']."' '".$conf['mysql']['database']."' < '".ISPC_INSTALL_ROOT."/install/sql/ispconfig3.sql' &> /dev/null",
						__FILE__, __LINE__, 'read in ispconfig3.sql', 'could not read in ispconfig3.sql');
			}
			$db_tables = $this->db->getTables();
			if(count($db_tables) == 0) {
				$this->error('Unable to load SQL-Dump into database table.');
			}

			//* Load system.ini into the sys_ini table
			$system_ini = $this->db->quote(rf('tpl/system.ini.master'));
			$this->db->query("UPDATE sys_ini SET config = '$system_ini' WHERE sysini_id = 1");

		}
	}

	//** Create the server record in the database
	public function add_database_server_record() {

		global $conf;

		if($conf['mysql']['host'] == 'localhost') {
			$from_host = 'localhost';
		} else {
			$from_host = $conf['hostname'];
		}

		// Delete ISPConfig user in the local database, in case that it exists
		$this->db->query("DELETE FROM mysql.user WHERE User = '".$conf['mysql']['ispconfig_user']."' AND Host = '".$from_host."';");
		$this->db->query("DELETE FROM mysql.db WHERE Db = '".$conf['mysql']['database']."' AND Host = '".$from_host."';");
		$this->db->query('FLUSH PRIVILEGES;');

		//* Create the ISPConfig database user in the local database
		$query = 'GRANT SELECT, INSERT, UPDATE, DELETE ON '.$conf['mysql']['database'].".* "
				."TO '".$conf['mysql']['ispconfig_user']."'@'".$from_host."' "
				."IDENTIFIED BY '".$conf['mysql']['ispconfig_password']."';";
		if(!$this->db->query($query)) {
			$this->error('Unable to create database user: '.$conf['mysql']['ispconfig_user'].' Error: '.$this->db->errorMessage);
		}

		//* Reload database privelages
		$this->db->query('FLUSH PRIVILEGES;');

		//* Set the database name in the DB library
		$this->db->dbName = $conf['mysql']['database'];

		$tpl_ini_array = ini_to_array(rf('tpl/server.ini.master'));

		//* Update further distribution specific parameters for server config here
		//* HINT: Every line added here has to be added in update.lib.php too!!
		$tpl_ini_array['web']['vhost_conf_dir'] = $conf['apache']['vhost_conf_dir'];
		$tpl_ini_array['web']['vhost_conf_enabled_dir'] = $conf['apache']['vhost_conf_enabled_dir'];
		$tpl_ini_array['jailkit']['jailkit_chroot_app_programs'] = $conf['jailkit']['jailkit_chroot_app_programs'];
		$tpl_ini_array['fastcgi']['fastcgi_phpini_path'] = $conf['fastcgi']['fastcgi_phpini_path'];
		$tpl_ini_array['fastcgi']['fastcgi_starter_path'] = $conf['fastcgi']['fastcgi_starter_path'];
		$tpl_ini_array['server']['hostname'] = $conf['hostname'];
		$tpl_ini_array['server']['ip_address'] = @gethostbyname($conf['hostname']);
		$tpl_ini_array['web']['website_basedir'] = $conf['web']['website_basedir'];
		$tpl_ini_array['web']['website_path'] = $conf['web']['website_path'];
		$tpl_ini_array['web']['website_symlinks'] = $conf['web']['website_symlinks'];
		$tpl_ini_array['cron']['crontab_dir'] = $conf['cron']['crontab_dir'];
		$tpl_ini_array['web']['security_level'] = 20;
		$tpl_ini_array['web']['user'] = $conf['apache']['user'];
		$tpl_ini_array['web']['group'] = $conf['apache']['group'];
		$tpl_ini_array['web']['php_ini_path_apache'] = $conf['apache']['php_ini_path_apache'];
		$tpl_ini_array['web']['php_ini_path_cgi'] = $conf['apache']['php_ini_path_cgi'];
		$tpl_ini_array['mail']['pop3_imap_daemon'] = ($conf['dovecot']['installed'] == true)?'dovecot':'courier';
		$tpl_ini_array['mail']['mail_filter_syntax'] = ($conf['dovecot']['installed'] == true)?'sieve':'maildrop';
		$tpl_ini_array['dns']['bind_user'] = $conf['bind']['bind_user'];
		$tpl_ini_array['dns']['bind_group'] = $conf['bind']['bind_group'];
		$tpl_ini_array['dns']['bind_zonefiles_dir'] = $conf['bind']['bind_zonefiles_dir'];
		$tpl_ini_array['dns']['named_conf_path'] = $conf['bind']['named_conf_path'];
		$tpl_ini_array['dns']['named_conf_local_path'] = $conf['bind']['named_conf_local_path'];

		$server_ini_content = array_to_ini($tpl_ini_array);
		$server_ini_content = mysql_real_escape_string($server_ini_content);

		$mail_server_enabled = ($conf['services']['mail'])?1:0;
		$web_server_enabled = ($conf['services']['web'])?1:0;
		$dns_server_enabled = ($conf['services']['dns'])?1:0;
		$file_server_enabled = ($conf['services']['file'])?1:0;
		$db_server_enabled = ($conf['services']['db'])?1:0;
		$vserver_server_enabled = ($conf['services']['vserver'])?1:0;
		
		//** Get the database version number based on the patchfiles
		$found = true;
		while($found == true) {
			$next_db_version = intval($current_db_version + 1);
			$patch_filename = realpath(dirname(__FILE__).'/../../').'/sql/incremental/upd_'.str_pad($next_db_version, 4, '0', STR_PAD_LEFT).'.sql';
			if(is_file($patch_filename)) {
				$current_db_version = $next_db_version;
			} else {
				$found = false;
			}
		}
		$current_db_version = intval($current_db_version);


		if($conf['mysql']['master_slave_setup'] == 'y') {

			//* Insert the server record in master DB
			$sql = "INSERT INTO `server` (`sys_userid`, `sys_groupid`, `sys_perm_user`, `sys_perm_group`, `sys_perm_other`, `server_name`, `mail_server`, `web_server`, `dns_server`, `file_server`, `db_server`, `vserver_server`, `config`, `updated`, `active`, `dbversion`) VALUES (1, 1, 'riud', 'riud', 'r', '".$conf['hostname']."', '$mail_server_enabled', '$web_server_enabled', '$dns_server_enabled', '$file_server_enabled', '$db_server_enabled', '$vserver_server_enabled', '$server_ini_content', 0, 1, $current_db_version);";
			$this->dbmaster->query($sql);
			$conf['server_id'] = $this->dbmaster->insertID();
			$conf['server_id'] = $conf['server_id'];

			//* Insert the same record in the local DB
			$sql = "INSERT INTO `server` (`server_id`, `sys_userid`, `sys_groupid`, `sys_perm_user`, `sys_perm_group`, `sys_perm_other`, `server_name`, `mail_server`, `web_server`, `dns_server`, `file_server`, `db_server`, `vserver_server`, `config`, `updated`, `active`, `dbversion`) VALUES ('".$conf['server_id']."',1, 1, 'riud', 'riud', 'r', '".$conf['hostname']."', '$mail_server_enabled', '$web_server_enabled', '$dns_server_enabled', '$file_server_enabled', '$db_server_enabled', '$vserver_server_enabled', '$server_ini_content', 0, 1, $current_db_version);";
			$this->db->query($sql);

			//* username for the ispconfig user
			$conf['mysql']['master_ispconfig_user'] = 'ispcsrv'.$conf['server_id'];

			$this->grant_master_database_rights();

		} else {
			//* Insert the server, if its not a mster / slave setup
			$sql = "INSERT INTO `server` (`sys_userid`, `sys_groupid`, `sys_perm_user`, `sys_perm_group`, `sys_perm_other`, `server_name`, `mail_server`, `web_server`, `dns_server`, `file_server`, `db_server`, `vserver_server`, `config`, `updated`, `active`, `dbversion`) VALUES (1, 1, 'riud', 'riud', 'r', '".$conf['hostname']."', '$mail_server_enabled', '$web_server_enabled', '$dns_server_enabled', '$file_server_enabled', '$db_server_enabled', '$vserver_server_enabled', '$server_ini_content', 0, 1, $current_db_version);";
			$this->db->query($sql);
			$conf['server_id'] = $this->db->insertID();
			$conf['server_id'] = $conf['server_id'];
		}


	}

	public function grant_master_database_rights() {
		global $conf;

		/*
		 * The following code is a little bit tricky:
		 * * If we HAVE a master-slave - Setup then the client has to grant the rights for himself
		 *   at the master.
		 * * If we DO NOT have a master-slave - Setup then we have two possibilities
		 *   1) it is a single server
		 *   2) it is the MASTER of n clients
		*/
		if($conf['mysql']['master_slave_setup'] == 'y') {
			/*
			 * it is a master-slave - Setup so the slave has to grant its rights in the master
			 * database
			 */

			//* insert the ispconfig user in the remote server
			$from_host = $conf['hostname'];
			$from_ip = gethostbyname($conf['hostname']);
			
			$hosts[$from_host]['user'] = $conf['mysql']['master_ispconfig_user'];
			$hosts[$from_host]['db'] = $conf['mysql']['master_database'];
			$hosts[$from_host]['pwd'] = $conf['mysql']['master_ispconfig_password'];

			$hosts[$from_ip]['user'] = $conf['mysql']['master_ispconfig_user'];
			$hosts[$from_ip]['db'] = $conf['mysql']['master_database'];
			$hosts[$from_ip]['pwd'] = $conf['mysql']['master_ispconfig_password'];
		} else{
			/*
			 * it is NOT a master-slave - Setup so we have to find out all clients and their
			 * host
			 */
			$query = "SELECT Host, User FROM mysql.user WHERE User like 'ispcsrv%' ORDER BY User, Host";
			$data = $this->dbmaster->queryAllRecords($query);
			if($data === false) {
				$this->error('Unable to get the user rights: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}
			foreach ($data as $item){
				$hosts[$item['Host']]['user'] = $item['User'];
				$hosts[$item['Host']]['db'] = $conf['mysql']['master_database'];
				$hosts[$item['Host']]['pwd'] = ''; // the user already exists, so we need no pwd!
			}
		}
		
		if(is_array($hosts)) {
		foreach($hosts as $host => $value) {
			/*
			 * If a pwd exists, this means, we have to add the new user (and his pwd).
			 * if not, the user already exists and we do not need the pwd
			 */
			if ($value['pwd'] != ''){
				$query = "CREATE USER '".$value['user']."'@'".$host."' IDENTIFIED BY '" . $value['pwd'] . "'";
				$this->dbmaster->query($query); // ignore the error
			}

			/*
			 *  Try to delete all rights of the user in case that it exists.
			 *  In Case that it will not exist, do nothing (ignore the error!)
			 */
			$query = "REVOKE ALL PRIVILEGES, GRANT OPTION FROM '".$value['user']."'@'".$host."' ";
			$this->dbmaster->query($query); // ignore the error

			//* Create the ISPConfig database user in the remote database
			$query = "GRANT SELECT ON ".$value['db'].".`server` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT, INSERT ON ".$value['db'].".`sys_log` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT, UPDATE(`status`) ON ".$value['db'].".`sys_datalog` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT, UPDATE(`status`) ON ".$value['db'].".`software_update_inst` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT, UPDATE(`updated`) ON ".$value['db'].".`server` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT, UPDATE (`ssl_request`, `ssl_cert`, `ssl_action`) ON ".$value['db'].".`web_domain` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT ON ".$value['db'].".`sys_group` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT, UPDATE (`action_state`, `response`) ON ".$value['db'].".`sys_remoteaction` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT, INSERT , DELETE ON ".$value['db'].".`monitor_data` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT, INSERT, UPDATE ON ".$value['db'].".`mail_traffic` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}

			$query = "GRANT SELECT, INSERT, UPDATE ON ".$value['db'].".`web_traffic` TO '".$value['user']."'@'".$host."' ";
			if(!$this->dbmaster->query($query)) {
				$this->error('Unable to set rights of user in master database: '.$value['db'].' Error: '.$this->dbmaster->errorMessage);
			}
		}

		/*
		 * It is all done. Relod the rights...
		 */
		$this->dbmaster->query('FLUSH PRIVILEGES;');
		}

	}

	//** writes postfix configuration files
	public function process_postfix_config($configfile) {
		global $conf;

		$config_dir = $conf['postfix']['config_dir'].'/';
		$full_file_name = $config_dir.$configfile;
		//* Backup exiting file
		if(is_file($full_file_name)) {
			copy($full_file_name, $config_dir.$configfile.'~');
		}
		$content = rf('tpl/'.$configfile.'.master');
		$content = str_replace('{mysql_server_ispconfig_user}', $conf['mysql']['ispconfig_user'], $content);
		$content = str_replace('{mysql_server_ispconfig_password}', $conf['mysql']['ispconfig_password'], $content);
		$content = str_replace('{mysql_server_database}', $conf['mysql']['database'], $content);
		$content = str_replace('{mysql_server_ip}', $conf['mysql']['ip'], $content);
		$content = str_replace('{server_id}', $conf['server_id'], $content);
		wf($full_file_name, $content);
	}

	public function configure_jailkit() {
		global $conf;

		$cf = $conf['jailkit'];
		$config_dir = $cf['config_dir'];
		$jk_init = $cf['jk_init'];
		$jk_chrootsh = $cf['jk_chrootsh'];

		if (is_dir($config_dir)) {
			if(is_file($config_dir.'/'.$jk_init)) copy($config_dir.'/'.$jk_init, $config_dir.'/'.$jk_init.'~');
			if(is_file($config_dir.'/'.$jk_chrootsh.'.master')) copy($config_dir.'/'.$jk_chrootsh.'.master', $config_dir.'/'.$jk_chrootsh.'~');

			copy('tpl/'.$jk_init.'.master', $config_dir.'/'.$jk_init);
			copy('tpl/'.$jk_chrootsh.'.master', $config_dir.'/'.$jk_chrootsh);
		}

	}

	public function configure_postfix($options = '') {
		global $conf;
		$cf = $conf['postfix'];
		$config_dir = $cf['config_dir'];

		if(!is_dir($config_dir)) {
			$this->error("The postfix configuration directory '$config_dir' does not exist.");
		}

		//* mysql-virtual_domains.cf
		$this->process_postfix_config('mysql-virtual_domains.cf');

		//* mysql-virtual_forwardings.cf
		$this->process_postfix_config('mysql-virtual_forwardings.cf');

		//* mysql-virtual_mailboxes.cf
		$this->process_postfix_config('mysql-virtual_mailboxes.cf');

		//* mysql-virtual_email2email.cf
		$this->process_postfix_config('mysql-virtual_email2email.cf');

		//* mysql-virtual_transports.cf
		$this->process_postfix_config('mysql-virtual_transports.cf');

		//* mysql-virtual_recipient.cf
		$this->process_postfix_config('mysql-virtual_recipient.cf');

		//* mysql-virtual_sender.cf
		$this->process_postfix_config('mysql-virtual_sender.cf');

		//* mysql-virtual_client.cf
		$this->process_postfix_config('mysql-virtual_client.cf');

		//* mysql-virtual_relaydomains.cf
		$this->process_postfix_config('mysql-virtual_relaydomains.cf');

		//* mysql-virtual_relayrecipientmaps.cf
		$this->process_postfix_config('mysql-virtual_relayrecipientmaps.cf');

		//* Changing mode and group of the new created config files.
		caselog('chmod o= '.$config_dir.'/mysql-virtual_*.cf* &> /dev/null',
				__FILE__, __LINE__, 'chmod on mysql-virtual_*.cf*', 'chmod on mysql-virtual_*.cf* failed');
		caselog('chgrp '.$cf['group'].' '.$config_dir.'/mysql-virtual_*.cf* &> /dev/null',
				__FILE__, __LINE__, 'chgrp on mysql-virtual_*.cf*', 'chgrp on mysql-virtual_*.cf* failed');

		//* Creating virtual mail user and group
		$command = 'groupadd -g '.$cf['vmail_groupid'].' '.$cf['vmail_groupname'];
		if(!is_group($cf['vmail_groupname'])) caselog($command.' &> /dev/null', __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");

		$command = 'useradd -g '.$cf['vmail_groupname'].' -u '.$cf['vmail_userid'].' '.$cf['vmail_username'].' -d '.$cf['vmail_mailbox_base'].' -m';
		if(!is_user($cf['vmail_username'])) caselog("$command &> /dev/null", __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");

		$postconf_commands = array (
				'myhostname = '.$conf['hostname'],
				'mydestination = '.$conf['hostname'].', localhost, localhost.localdomain',
				'mynetworks = 127.0.0.0/8 [::1]/128',
				'virtual_alias_domains =',
				'virtual_alias_maps = proxy:mysql:'.$config_dir.'/mysql-virtual_forwardings.cf, mysql:'.$config_dir.'/mysql-virtual_email2email.cf',
				'virtual_mailbox_domains = proxy:mysql:'.$config_dir.'/mysql-virtual_domains.cf',
				'virtual_mailbox_maps = proxy:mysql:'.$config_dir.'/mysql-virtual_mailboxes.cf',
				'virtual_mailbox_base = '.$cf['vmail_mailbox_base'],
				'virtual_uid_maps = static:'.$cf['vmail_userid'],
				'virtual_gid_maps = static:'.$cf['vmail_groupid'],
				'smtpd_sasl_auth_enable = yes',
				'broken_sasl_auth_clients = yes',
				'smtpd_sasl_authenticated_header = yes',
				'smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, check_recipient_access mysql:'.$config_dir.'/mysql-virtual_recipient.cf, reject_unauth_destination',
				'smtpd_use_tls = yes',
				'smtpd_tls_security_level = may',
				'smtpd_tls_cert_file = '.$config_dir.'/smtpd.cert',
				'smtpd_tls_key_file = '.$config_dir.'/smtpd.key',
				'transport_maps = proxy:mysql:'.$config_dir.'/mysql-virtual_transports.cf',
				'relay_domains = mysql:'.$config_dir.'/mysql-virtual_relaydomains.cf',
				'relay_recipient_maps = mysql:'.$config_dir.'/mysql-virtual_relayrecipientmaps.cf',
				'virtual_create_maildirsize = yes',
				'virtual_maildir_extended = yes',
				'virtual_mailbox_limit_maps = proxy:mysql:'.$config_dir.'/mysql-virtual_mailbox_limit_maps.cf',
				'virtual_mailbox_limit_override = yes',
				'virtual_maildir_limit_message = "The user you are trying to reach is over quota."',
				'virtual_overquota_bounce = yes',
				'proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $virtual_mailbox_limit_maps',
				'smtpd_sender_restrictions = check_sender_access mysql:'.$config_dir.'/mysql-virtual_sender.cf',
				'smtpd_client_restrictions = check_client_access mysql:'.$config_dir.'/mysql-virtual_client.cf',
				'maildrop_destination_concurrency_limit = 1',
				'maildrop_destination_recipient_limit   = 1',
				'virtual_transport = maildrop',
				'header_checks = regexp:'.$config_dir.'/header_checks',
				'mime_header_checks = regexp:'.$config_dir.'/mime_header_checks',
				'nested_header_checks = regexp:'.$config_dir.'/nested_header_checks',
				'body_checks = regexp:'.$config_dir.'/body_checks'
		);

		//* Create the header and body check files
		touch($config_dir.'/header_checks');
		touch($config_dir.'/mime_header_checks');
		touch($config_dir.'/nested_header_checks');
		touch($config_dir.'/body_checks');


		//* Make a backup copy of the main.cf file
		copy($config_dir.'/main.cf', $config_dir.'/main.cf~');

		//* Executing the postconf commands
		foreach($postconf_commands as $cmd) {
			$command = "postconf -e '$cmd'";
			caselog($command." &> /dev/null", __FILE__, __LINE__, 'EXECUTED: '.$command, 'Failed to execute the command '.$command);
		}

		if(!stristr($options,'dont-create-certs')) {
			//* Create the SSL certificate
			$command = 'cd '.$config_dir.'; '
					.'openssl req -new -outform PEM -out smtpd.cert -newkey rsa:2048 -nodes -keyout smtpd.key -keyform PEM -days 365 -x509';
			exec($command);

			$command = 'chmod o= '.$config_dir.'/smtpd.key';
			caselog($command.' &> /dev/null', __FILE__, __LINE__, 'EXECUTED: '.$command, 'Failed to execute the command '.$command);
		}

		//** We have to change the permissions of the courier authdaemon directory to make it accessible for maildrop.
		$command = 'chmod 755  /var/run/courier/authdaemon/';
		if(is_file('/var/run/courier/authdaemon/')) caselog($command.' &> /dev/null', __FILE__, __LINE__, 'EXECUTED: '.$command, 'Failed to execute the command '.$command);

		//* Changing maildrop lines in posfix master.cf
		if(is_file($config_dir.'/master.cf')) {
			copy($config_dir.'/master.cf', $config_dir.'/master.cf~');
		}
		if(is_file($config_dir.'/master.cf~')) {
			chmod($config_dir.'/master.cf~', 0400);
		}
		$configfile = $config_dir.'/master.cf';
		$content = rf($configfile);
		$content = str_replace('flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}',
				'flags=DRhu user='.$cf['vmail_username'].' argv=/usr/bin/maildrop -d '.$cf['vmail_username'].' ${extension} ${recipient} ${user} ${nexthop} ${sender}',
				$content);
		wf($configfile, $content);

		//* Writing the Maildrop mailfilter file
		$configfile = 'mailfilter';
		if(is_file($cf['vmail_mailbox_base'].'/.'.$configfile)) {
			copy($cf['vmail_mailbox_base'].'/.'.$configfile, $cf['vmail_mailbox_base'].'/.'.$configfile.'~');
		}
		$content = rf('tpl/'.$configfile.'.master');
		$content = str_replace('{dist_postfix_vmail_mailbox_base}', $cf['vmail_mailbox_base'], $content);
		wf($cf['vmail_mailbox_base'].'/.'.$configfile, $content);

		//* Create the directory for the custom mailfilters
		if(!is_dir($cf['vmail_mailbox_base'].'/mailfilters')) {
			$command = 'mkdir '.$cf['vmail_mailbox_base'].'/mailfilters';
			caselog($command." &> /dev/null", __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");
		}

		//* Chmod and chown the .mailfilter file
		$command = 'chown -R '.$cf['vmail_username'].':'.$cf['vmail_groupname'].' '.$cf['vmail_mailbox_base'].'/.mailfilter';
		caselog($command." &> /dev/null", __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");

		$command = 'chmod -R 600 '.$cf['vmail_mailbox_base'].'/.mailfilter';
		caselog($command." &> /dev/null", __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");

	}

	public function configure_saslauthd() {
		global $conf;


		$configfile = 'sasl_smtpd.conf';
		if(is_file($conf['postfix']['config_dir'].'/sasl/smtpd.conf')) copy($conf['postfix']['config_dir'].'/sasl/smtpd.conf',$conf['postfix']['config_dir'].'/sasl/smtpd.conf~');
		if(is_file($conf['postfix']['config_dir'].'/sasl/smtpd.conf~')) chmod($conf['postfix']['config_dir'].'/sasl/smtpd.conf~', 0400);
		$content = rf('tpl/'.$configfile.'.master');
		$content = str_replace('{mysql_server_ispconfig_user}',$conf['mysql']['ispconfig_user'],$content);
		$content = str_replace('{mysql_server_ispconfig_password}',$conf['mysql']['ispconfig_password'], $content);
		$content = str_replace('{mysql_server_database}',$conf['mysql']['database'],$content);
		$content = str_replace('{mysql_server_ip}',$conf['mysql']['ip'],$content);
		wf($conf['postfix']['config_dir'].'/sasl/smtpd.conf',$content);

		// TODO: Chmod and chown on the config file


		// Recursively create the spool directory
		if(!@is_dir('/var/spool/postfix/var/run/saslauthd')) mkdir('/var/spool/postfix/var/run/saslauthd', 0755, true);

		// Edit the file /etc/default/saslauthd
		$configfile = $conf['saslauthd']['config'];
		if(is_file($configfile)) copy($configfile,$configfile.'~');
		if(is_file($configfile.'~')) chmod($configfile.'~', 0400);
		$content = rf($configfile);
		$content = str_replace('START=no','START=yes',$content);
		// Debian
		$content = str_replace('OPTIONS="-c"','OPTIONS="-m /var/spool/postfix/var/run/saslauthd -r"',$content);
		// Ubuntu
		$content = str_replace('OPTIONS="-c -m /var/run/saslauthd"','OPTIONS="-c -m /var/spool/postfix/var/run/saslauthd -r"',$content);
		wf($configfile,$content);

		// Edit the file /etc/init.d/saslauthd
		$configfile = $conf['init_scripts'].'/'.$conf['saslauthd']['init_script'];
		$content = rf($configfile);
		$content = str_replace('PIDFILE=$RUN_DIR/saslauthd.pid','PIDFILE="/var/spool/postfix/var/run/${NAME}/saslauthd.pid"',$content);
		wf($configfile,$content);

		// add the postfix user to the sasl group (at least necessary for Ubuntu 8.04 and most likely Debian Lenny as well.
		exec('adduser postfix sasl');


	}

	public function configure_pam() {
		global $conf;
		$pam = $conf['pam'];
		//* configure pam for SMTP authentication agains the ispconfig database
		$configfile = 'pamd_smtp';
		if(is_file($pam.'/smtp'))    copy($pam.'/smtp', $pam.'/smtp~');
		if(is_file($pam.'/smtp~'))   chmod($pam.'/smtp~', 0400);

		$content = rf('tpl/'.$configfile.'.master');
		$content = str_replace('{mysql_server_ispconfig_user}', $conf['mysql']['ispconfig_user'], $content);
		$content = str_replace('{mysql_server_ispconfig_password}', $conf['mysql']['ispconfig_password'], $content);
		$content = str_replace('{mysql_server_database}', $conf['mysql']['database'], $content);
		$content = str_replace('{mysql_server_ip}', $conf['mysql']['ip'], $content);
		wf($pam.'/smtp', $content);
		// On some OSes smtp is world readable which allows for reading database information.  Removing world readable rights should have no effect.
		if(is_file($pam.'/smtp'))    exec("chmod o= $pam/smtp");
		chmod($pam.'/smtp', 0660);
		chown($pam.'/smtp', 'daemon');
		chgrp($pam.'/smtp', 'daemon');

	}

	public function configure_courier() {
		global $conf;
		$config_dir = $conf['courier']['config_dir'];
		//* authmysqlrc
		$configfile = 'authmysqlrc';
		if(is_file($config_dir.'/'.$configfile)) {
			copy($config_dir.'/'.$configfile, $config_dir.'/'.$configfile.'~');
		}
		chmod($config_dir.'/'.$configfile.'~', 0400);
		$content = rf('tpl/'.$configfile.'.master');
		$content = str_replace('{mysql_server_ispconfig_user}',$conf['mysql']['ispconfig_user'],$content);
		$content = str_replace('{mysql_server_ispconfig_password}',$conf['mysql']['ispconfig_password'], $content);
		$content = str_replace('{mysql_server_database}',$conf['mysql']['database'],$content);
		$content = str_replace('{mysql_server_host}',$conf['mysql']['host'],$content);
		wf($config_dir.'/'.$configfile, $content);

		chmod($config_dir.'/'.$configfile, 0660);
		chown($config_dir.'/'.$configfile, 'daemon');
		chgrp($config_dir.'/'.$configfile, 'daemon');

		//* authdaemonrc
		$configfile = $config_dir.'/authdaemonrc';
		if(is_file($configfile)) {
			copy($configfile, $configfile.'~');
		}
		if(is_file($configfile.'~')) {
			chmod($configfile.'~', 0400);
		}
		$content = rf($configfile);
		$content = str_replace('authmodulelist="authpam"', 'authmodulelist="authmysql"', $content);
		wf($configfile, $content);
	}

	public function configure_dovecot() {
		global $conf;

		$config_dir = $conf['dovecot']['config_dir'];

		//* Configure master.cf and add a line for deliver
		if(is_file($config_dir.'/master.cf')) {
			copy($config_dir.'/master.cf', $config_dir.'/master.cf~2');
		}
		if(is_file($config_dir.'/master.cf~')) {
			chmod($config_dir.'/master.cf~2', 0400);
		}
		$content = rf($conf['postfix']['config_dir'].'/master.cf');
		// Only add the content if we had not addded it before
		if(!stristr($content,'dovecot/deliver')) {
			$deliver_content = 'dovecot   unix  -       n       n       -       -       pipe'."\n".'  flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -f ${sender} -d ${user}@${nexthop}';
			af($conf['postfix']['config_dir'].'/master.cf',$deliver_content);
		}
		unset($content);
		unset($deliver_content);


		//* Reconfigure postfix to use dovecot authentication
		// Adding the amavisd commands to the postfix configuration
		$postconf_commands = array (
				'dovecot_destination_recipient_limit = 1',
				'virtual_transport = dovecot',
				'smtpd_sasl_type = dovecot',
				'smtpd_sasl_path = private/auth'
		);

		// Make a backup copy of the main.cf file
		copy($conf['postfix']['config_dir'].'/main.cf',$conf['postfix']['config_dir'].'/main.cf~3');

		// Executing the postconf commands
		foreach($postconf_commands as $cmd) {
			$command = "postconf -e '$cmd'";
			caselog($command." &> /dev/null", __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");
		}

		//* copy dovecot.conf
		$configfile = 'dovecot.conf';
		if(is_file($config_dir.'/'.$configfile)) {
			copy($config_dir.'/'.$configfile, $config_dir.'/'.$configfile.'~');
		}
		copy('tpl/debian_dovecot.conf.master',$config_dir.'/'.$configfile);

		//* dovecot-sql.conf
		$configfile = 'dovecot-sql.conf';
		if(is_file($config_dir.'/'.$configfile)) {
			copy($config_dir.'/'.$configfile, $config_dir.'/'.$configfile.'~');
		}
		chmod($config_dir.'/'.$configfile.'~', 0400);
		$content = rf('tpl/debian_dovecot-sql.conf.master');
		$content = str_replace('{mysql_server_ispconfig_user}',$conf['mysql']['ispconfig_user'],$content);
		$content = str_replace('{mysql_server_ispconfig_password}',$conf['mysql']['ispconfig_password'], $content);
		$content = str_replace('{mysql_server_database}',$conf['mysql']['database'],$content);
		$content = str_replace('{mysql_server_host}',$conf['mysql']['host'],$content);
		wf($config_dir.'/'.$configfile, $content);

		chmod($config_dir.'/'.$configfile, 0600);
		chown($config_dir.'/'.$configfile, 'root');
		chgrp($config_dir.'/'.$configfile, 'root');

	}

	public function configure_amavis() {
		global $conf;

		// amavisd user config file
		$configfile = 'amavisd_user_config';
		if(is_file($conf['amavis']['config_dir'].'/conf.d/50-user')) copy($conf['amavis']['config_dir'].'/conf.d/50-user',$conf['amavis']['config_dir'].'/50-user~');
		if(is_file($conf['amavis']['config_dir'].'/conf.d/50-user~')) chmod($conf['amavis']['config_dir'].'/conf.d/50-user~', 0400);
		$content = rf('tpl/'.$configfile.'.master');
		$content = str_replace('{mysql_server_ispconfig_user}',$conf['mysql']['ispconfig_user'],$content);
		$content = str_replace('{mysql_server_ispconfig_password}',$conf['mysql']['ispconfig_password'], $content);
		$content = str_replace('{mysql_server_database}',$conf['mysql']['database'],$content);
		$content = str_replace('{mysql_server_port}',$conf['mysql']['port'],$content);
		$content = str_replace('{mysql_server_ip}',$conf['mysql']['ip'],$content);
		wf($conf['amavis']['config_dir'].'/conf.d/50-user',$content);

		// TODO: chmod and chown on the config file


		// Adding the amavisd commands to the postfix configuration
		$postconf_commands = array (
				'content_filter = amavis:[127.0.0.1]:10024',
				'receive_override_options = no_address_mappings'
		);

		// Make a backup copy of the main.cf file
		copy($conf['postfix']['config_dir'].'/main.cf',$conf['postfix']['config_dir'].'/main.cf~2');

		// Executing the postconf commands
		foreach($postconf_commands as $cmd) {
			$command = "postconf -e '$cmd'";
			caselog($command." &> /dev/null", __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");
		}

		// Append the configuration for amavisd to the master.cf file
		if(is_file($conf['postfix']['config_dir'].'/master.cf')) copy($conf['postfix']['config_dir'].'/master.cf',$conf['postfix']['config_dir'].'/master.cf~');
		$content = rf($conf['postfix']['config_dir'].'/master.cf');
		// Only add the content if we had not addded it before
		if(!stristr($content,'127.0.0.1:10025')) {
			unset($content);
			$content = rf('tpl/master_cf_amavis.master');
			af($conf['postfix']['config_dir'].'/master.cf',$content);
		}
		unset($content);

		// Add the clamav user to the amavis group
		exec('adduser clamav amavis');


	}

	public function configure_spamassassin() {
		global $conf;

		//* Enable spamasasssin on debian and ubuntu
		$configfile = '/etc/default/spamassassin';
		if(is_file($configfile)) {
			copy($configfile, $configfile.'~');
		}
		$content = rf($configfile);
		$content = str_replace('ENABLED=0', 'ENABLED=1', $content);
		wf($configfile, $content);
	}

	public function configure_getmail() {
		global $conf;

		$config_dir = $conf['getmail']['config_dir'];

		if(!@is_dir($config_dir)) mkdir(escapeshellcmd($config_dir), 0700, true);

		$command = 'useradd -d '.$config_dir.' getmail';
		if(!is_user('getmail')) caselog($command.' &> /dev/null', __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");

		$command = "chown -R getmail $config_dir";
		caselog($command.' &> /dev/null', __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");

		$command = "chmod -R 700 $config_dir";
		caselog($command.' &> /dev/null', __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");
	}


	public function configure_pureftpd() {
		global $conf;

		$config_dir = $conf['pureftpd']['config_dir'];

		//* configure pure-ftpd for MySQL authentication against the ispconfig database
		$configfile = 'db/mysql.conf';
		if(is_file($config_dir.'/'.$configfile)) {
			copy($config_dir.'/'.$configfile, $config_dir.'/'.$configfile.'~');
		}
		if(is_file($config_dir.'/'.$configfile.'~')) {
			chmod($config_dir.'/'.$configfile.'~', 0400);
		}
		$content = rf('tpl/pureftpd_mysql.conf.master');
		$content = str_replace('{mysql_server_ispconfig_user}', $conf['mysql']['ispconfig_user'], $content);
		$content = str_replace('{mysql_server_ispconfig_password}', $conf['mysql']['ispconfig_password'], $content);
		$content = str_replace('{mysql_server_database}', $conf['mysql']['database'], $content);
		$content = str_replace('{mysql_server_ip}', $conf['mysql']['ip'], $content);
		$content = str_replace('{server_id}', $conf['server_id'], $content);
		wf($config_dir.'/'.$configfile, $content);
		chmod($config_dir.'/'.$configfile, 0600);
		chown($config_dir.'/'.$configfile, 'root');
		chgrp($config_dir.'/'.$configfile, 'root');
		// **enable chrooting
		//exec('mkdir -p '.$config_dir.'/conf/ChrootEveryone');
		exec('echo "yes" > '.$config_dir.'/conf/ChrootEveryone');
		exec('echo "yes" > '.$config_dir.'/conf/BrokenClientsCompatibility');