<?php

/***************************************************************************
 *
 * vMail.Admin2:  $Id: versioning.php,v 1.0 15/02/2006 juan Exp $
 *
 ***************************************************************************/

/***************************************************************************
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 ***************************************************************************/
 
/***************************************************************************
 *
 * @class versioning_backend
 *			Returns package binary paths and versioning
 *
 ***************************************************************************/

if ( !defined('IN_VMA') )
{
	die('Illegal operation...');
	exit;
}


class versioning_backend
{
	var $adelante	= FALSE;
	var $binaries	= array();
	var $versions	= array();
	
	function versioning_backend()
	{
		$this->binaries = $this->path_to_binaries();
		if ( isset($this->binaries[SUDO]) && !empty($this->binaries[SUDO]) && !($this->binaries[SUDO] === DISABLE) )
		{
			$this->adelante = TRUE;
		}
		
		return ( $this->adelante );
	}
	
	/**
	*
	* Function:
	*	path_to_binaries ( )
	*
	* Function to obtain absolute paths to specific package binaries
	*
	* @param		NULL
	* @return	@array
	*
	**/
	function path_to_binaries()
	{
		global $_SERVER;
		
		$this->ENVPATH_array		= ini_get('safe_mode') ? explode(":",ini_get('safe_mode_exec_dir')) : explode(":",$_SERVER['PATH']);
$this->ENVPATH_array[]		= '/usr/local/bin';
		$this->binary_array		= array(
			CLAMSCAN			=> array('clamd'),
			CLAMASSASSIN	=> array('clamassassin'),
			MAILDROP			=> array('maildrop'),
			CONVERT			=> array('convert'),
			COURIER			=> array('courier-imapd','imapd'),
			MAILDIRMAKE		=> array('maildirmake'),
			SALEARN			=> array('sa-learn'),
			PERL				=> array('perl'),
			POSTFIX			=> array('postconf'),
			SPAMASSASSIN	=> array('spamassassin'),
			SUDO				=> array('sudo'),
			PYZOR				=> array('pyzor'),
			DCC				=> array('dccproc'),
			RAZOR2			=> array('razor-report','razor-admin'),
			DSPAM				=> array('dspam'),
		);
		ksort($this->binary_array);
		
		// loop though environment path array...
		foreach ( $this->ENVPATH_array as $key1 => $ENVPATH )
		{
			// loop through binary_array
			$this->binaries[$key2] = DISABLE;
			foreach ( $this->binary_array as $key2 => $bin_array )
			{
				// finally, loop through nested binaries...
				// this ensures that the many...... ugh... different binary
				// names are searched for across the many different POSIX
				// compliant UNIX/Linux servers.....
				// For example, on FreeBSD, the imapd daemon  is "imapd"
				// while on a gentoo system, it's courier-imapd... You will most likely
				// get errors if you if crucial requirements are not met, thus you'll
				// need to add your binary to the array ($this->binary_array) above.
				// If you add a new binary,
				// PLEASE PLEASE PLEASE, drop me an email with the addition for future
				// releases... =)
				foreach ( $bin_array as $key3 => $binary )
				{
					$path_to_binary = sprintf('%s/%s',$ENVPATH,$binary);
					if ( file_exists($path_to_binary) )
					{
						$this->binaries[$key2] = trim(str_replace("\n","",$path_to_binary));
						break;
					}
				}
			}
		}
		
		return ( $this->binaries );
		
	}
		
	/**
	*
	* Function:
	*	get_version_info ( )
	*
	* Function to obtain versions for specific packages
	*
	* @param		NULL
	* @return	@array
	*
	**/
	function get_version_info()
	{
		$this->version		= array(
			// Thus far, apache, maildrop and courier are not found on some systems...
			APACHE			=> array('bin' => NULL, 'version' => function_exists('apache_get_version') ? apache_get_version() : 'N/A'),
			CLAMSCAN			=> array('bin' => $this->binaries[CLAMSCAN], 'version' => '-V |cut -d" " -f 2 |cut -d"/" -f 1'),
			CLAMASSASSIN	=> array('bin' => $this->binaries[CLAMASSASSIN], 'version' => '-V |cut -d" " -f 2'),
			MAILDROP			=> array('bin' => $this->binaries[MAILDROP], 'version' => '-v |grep maildrop |cut -d" " -f 2 |tr "," " "'),
			CONVERT			=> array('bin' => $this->binaries[CONVERT], 'version' => '-version |grep "Version" |cut -d" " -f 3'),
			COURIER			=> array('bin' => $this->binaries[COURIER], 'version' => '--version |cut -d"/" -f 1 | cut -d" " -f 2'),
			PERL				=> array('bin' => $this->binaries[PERL], 'version' => '-v |grep "built" |cut -d" " -f 4'),
			POSTFIX			=> array('bin' => $this->binaries[POSTFIX], 'version' => '-d |grep "mail_version =" |cut -d" " -f 3 |tr "," " "'),
			POSTFIXDOMAIN	=> array('bin' => $this->binaries[POSTFIX], 'version' => '-d |grep "mydomain =" |cut -d"=" -f 2 |tr " " " "'),
			SPAMASSASSIN	=> array('bin' => $this->binaries[SPAMASSASSIN], 'version' => '-V |grep -i "spamassassin" |cut -d" " -f 3'),
			SUDO				=> array('bin' => $this->binaries[SUDO], 'version' => '-V |grep -i "Sudo version" |cut -d" " -f 3 |tr "," " "'),
			DSPAM				=> array('bin' => $this->binaries[DSPAM], 'version' => '--version |grep "(agent/library)" |cut -d" " -f 4'),
			SQL				=> DATABASE === 'postgre' ? pg_version() : mysql_get_server_info()
		);
		
		while ( list($var,$param) = @each($this->version) )
		{
			if ( $var == SQL || $var == APACHE )
			{
				switch ( $var )
				{
					case APACHE:
						$this->versions[$var] = substr(strrchr($param['version'],'/'),1);
						break;
					
					case SQL:
						$this->versions[$var] = DATABASE === 'postgre' ? $this->version[$var]['server'] : $this->version[$var];
						break;
				}
			}
			else if ( !($this->binaries[$var] === DISABLE) )
			{
				$exec = sprintf('%s %s',$param['bin'],$param['version']);
				$this->versions[$var] = exec($exec);
				$this->versions[$var] = $this->versions[$var];
			}
			else
			{
				$this->versions[$var] = _('Not Available');
			}
			
			$this->versions[$var] = trim(str_replace("\n","",$this->versions[$var]));
		}
		
		return ( $this->versions );
	}
}

?>