gentoo.lib.php

<?php

/*
Copyright (c) 2007, 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 extends installer_base 
{
	public function configure_jailkit()
    {
        global $conf;
		
		if (is_dir($conf['jailkit']['config_dir']))
		{
			$jkinit_content = $this->get_template_file($conf['jailkit']['jk_init'], true); //* get contents
			$this->write_config_file($conf['jailkit']['config_dir'] . '/' . $conf['jailkit']['jk_init'], $jkinit_content);
			
			$jkchroot_content = $this->get_template_file($conf['jailkit']['jk_chrootsh'], true); //* get contents
			$this->write_config_file($conf['jailkit']['config_dir'] . '/' . $conf['jailkit']['jk_chrootsh'], $jkchroot_content);
		}
		
		$command = 'chown root:root /var/www';
		caselog($command.' &> /dev/null', __FILE__, __LINE__, "EXECUTED: $command", "Failed to execute the command $command");
    }
	
	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.");
        }
        
        //* Install virtual mappings
        foreach (glob('tpl/mysql-virtual_*.master') as $filename) {
        	$this->process_postfix_config( basename($filename, '.master') );
        }
        
		//* 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");		
		}

		//* These postconf commands will be executed on installation and update
		$postconf_commands = array (
			'virtual_alias_domains =',
			'virtual_alias_maps = proxy:mysql:'.$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',
			'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'
		);
		
		//* These postconf commands will be executed on installation only
		if($this->is_update == false) {
			$postconf_commands = array_merge($postconf_commands,array(
				'myhostname = '.$conf['hostname'],
				'mydestination = '.$conf['hostname'].', localhost, localhost.localdomain',
				'mynetworks = 127.0.0.0/8 [::1]/128'
			));
		}
		
		//* 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);
		}
		
		//* Create the SSL certificate
		if (!stristr($options,'dont-create-certs'))  
		{
			$command = 'cd '.$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.
		$command = 'chmod 755  /var/lib/courier/authdaemon/';
		if (is_dir('/var/lib/courier/authdaemon')) {
			caselog($command.' &> /dev/null', __FILE__, __LINE__, 'EXECUTED: '.$command, 'Failed to execute the command '.$command);
		}
		
		//* Changing maildrop lines in posfix master.cf
		$configfile = $config_dir.'/master.cf';
		$content = rf($configfile);

        $content = preg_replace('/^#?maildrop/m', 'maildrop', $content);
        $content = preg_replace('/^#?(\s+)flags=DRhu user=vmail argv=\/usr\/bin\/maildrop -d/m',
        						'$1flags=DRhu user=vmail argv=/usr/bin/maildrop -d vmail \${extension} \${recipient} \${user} \${nexthop} \${sender}',
        						$content);
        						
		$this->write_config_file($configfile, $content);
		
		//* Writing the Maildrop mailfilter file
		$content = rf('tpl/mailfilter.master');
		$content = str_replace('{dist_postfix_vmail_mailbox_base}', $cf['vmail_mailbox_base'], $content);
		
		$this->write_config_file($cf['vmail_mailbox_base'].'/.mailfilter', $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;
	
		$content = $this->get_template_file('sasl_smtpd.conf', true, true); //* get contents & insert db cred
		$this->write_config_file($conf['saslauthd']['config_dir'].'/smtpd.conf', $content);
		
		//* Edit the file saslauthd config file
		$content = rf($conf['saslauthd']['config_file']);
		$content = preg_replace('/(?<=\n)SASLAUTHD_OPTS="\$\{SASLAUTHD_OPTS\}[^"]+"/', 'SASLAUTHD_OPTS="${SASLAUTHD_OPTS} -a pam -r -c -s 128 -t 30 -n 5"', $content);
		
		$this->write_config_file($conf['saslauthd']['config_file'], $content);