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Commit 0cef61a3 authored by tbrehm's avatar tbrehm
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Added several input checks.

parent 7bf980d9
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install/tpl/config.inc.php.master
View file @ 0cef61a3
<?php
/*
Copyright (c) 2007 - 2009, 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.
*/
//** Web-only
if( !empty($_SERVER['DOCUMENT_ROOT']) ) {
Header("Pragma: no-cache");
Header("Cache-Control: no-store, no-cache, max-age=0, must-revalidate");
Header("Content-Type: text/html; charset=utf-8");
//** Set a few php.ini values
ini_set('register_globals',0);
ini_set('magic_quotes_gpc', 0);
if (isset($_REQUEST['GLOBALS']) || isset($_FILES['GLOBALS'])) {
die('Internal Error: GLOBALS override attempt detected');
exit;
}
}
//** Set a few php.ini values
set_magic_quotes_runtime(0);
if(isset($app)) unset($app);
if(isset($conf)) unset($conf);
//** SVN Revision
$svn_revision = '$Revision$';
$revision = str_replace(array('Revision:','$',' '), '', $svn_revision);
//** Application
define('ISPC_APP_TITLE', 'ISPConfig');
define('ISPC_APP_VERSION', '3.0.0.9');
//** Database
$conf["db_type"] = 'mysql';
$conf["db_host"] = '{mysql_server_host}';
$conf["db_database"] = '{mysql_server_database}';
$conf["db_user"] = '{mysql_server_ispconfig_user}';
$conf["db_password"] = '{mysql_server_ispconfig_password}';
$conf["db_charset"] = 'utf8'; // same charset as html-charset - (HTML --> MYSQL: "utf-8" --> "utf8", "iso-8859-1" --> "latin1")
define("DB_TYPE",$conf["db_type"]);
define("DB_HOST",$conf["db_host"]);
define("DB_DATABASE",$conf["db_database"]);
define("DB_USER",$conf["db_user"]);
define("DB_PASSWORD",$conf["db_password"]);
define("DB_CHARSET",$conf["db_charset"]);
//** Database settings for the master DB. This setting is only used in multiserver setups
$conf["dbmaster_type"] = 'mysql';
$conf["dbmaster_host"] = '{mysql_master_server_host}';
$conf["dbmaster_database"] = '{mysql_master_server_database}';
$conf["dbmaster_user"] = '{mysql_master_server_ispconfig_user}';
$conf["dbmaster_password"] = '{mysql_master_server_ispconfig_password}';
//** Paths
define('ISPC_ROOT_PATH', realpath(dirname(__FILE__).'/../')); // The main ROOT is the parent directory to this file, ie Interface/. NO trailing slashes.
define('ISPC_LIB_PATH', ISPC_ROOT_PATH.'/lib');
define('ISPC_CLASS_PATH', ISPC_ROOT_PATH.'/lib/classes');
define('ISPC_WEB_PATH', ISPC_ROOT_PATH.'/web');
define('ISPC_THEMES_PATH', ISPC_ROOT_PATH.'/web/themes');
define('ISPC_WEB_TEMP_PATH', ISPC_WEB_PATH.'/temp'); // Path for downloads, accessible via browser
define('ISPC_CACHE_PATH', ISPC_ROOT_PATH.'/cache');
//** Paths (Do not change!)
$conf["rootpath"] = substr(dirname(__FILE__),0,-4);
$conf["fs_div"] = "/"; // File system divider, "\\" on windows and "/"" on linux and unix
$conf["classpath"] = $conf["rootpath"].$conf["fs_div"]."lib".$conf["fs_div"]."classes";
$conf["temppath"] = $conf["rootpath"].$conf["fs_div"]."temp";
define("FS_DIV",$conf["fs_div"]);
define("SERVER_ROOT",$conf["rootpath"]);
define("INCLUDE_ROOT",SERVER_ROOT.FS_DIV."lib");
define("CLASSES_ROOT",INCLUDE_ROOT.FS_DIV."classes");
//** Server
$conf['app_title'] = ISPC_APP_TITLE;
$conf['app_version'] = ISPC_APP_VERSION;
$conf['app_link'] = 'http://www.ispconfig.org/';
$conf['modules_available'] = 'admin,mail,sites,monitor,client,dns,help';
$conf["server_id"] = "{server_id}";
//** Interface
define('ISPC_INTERFACE_MODULES_ENABLED', 'mail,sites,dns,tools');
//** Logging
$conf["log_file"] = '/var/log/ispconfig/ispconfig.log';
$conf["log_priority"] = {ispconfig_log_priority}; // 0 = Debug, 1 = Warning, 2 = Error
//** Allow software package installations
$conf['software_updates_enabled'] = false;
//** Themes
$conf["theme"] = 'default';
$conf["html_content_encoding"] = 'utf-8'; // example: utf-8, iso-8859-1, ...
$conf["logo"] = 'themes/default/images/ispc_logo.png';
//** Default Language
$conf["language"] = 'en';
//** Misc.
$conf["interface_logout_url"] = ""; // example: http://www.domain.tld/
//** Auto Load Modules
$conf["start_db"] = true;
$conf["start_session"] = true;
//** Constants
define("LOGLEVEL_DEBUG",0);
define("LOGLEVEL_WARN",1);
define("LOGLEVEL_ERROR",2);
?>
<?php
/*
Copyright (c) 2007 - 2009, Till Brehm, projektfarm Gmbh
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of ISPConfig nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
//** Web-only
if( !empty($_SERVER['DOCUMENT_ROOT']) ) {
Header("Pragma: no-cache");
Header("Cache-Control: no-store, no-cache, max-age=0, must-revalidate");
Header("Content-Type: text/html; charset=utf-8");
//** Set a few php.ini values
ini_set('register_globals',0);
ini_set('magic_quotes_gpc', 0);
if (isset($_REQUEST['GLOBALS']) || isset($_FILES['GLOBALS']) || isset($_REQUEST['s']) || isset($_REQUEST['s_old']) || isset($_REQUEST['conf'])) {
die('Internal Error: var override attempt detected');
exit;
}
}
//** Set a few php.ini values
set_magic_quotes_runtime(0);
if(isset($app)) unset($app);
if(isset($conf)) unset($conf);
//** SVN Revision
$svn_revision = '$Revision$';
$revision = str_replace(array('Revision:','$',' '), '', $svn_revision);
//** Application
define('ISPC_APP_TITLE', 'ISPConfig');
define('ISPC_APP_VERSION', '3.0.0.9');
//** Database
$conf["db_type"] = 'mysql';
$conf["db_host"] = '{mysql_server_host}';
$conf["db_database"] = '{mysql_server_database}';
$conf["db_user"] = '{mysql_server_ispconfig_user}';
$conf["db_password"] = '{mysql_server_ispconfig_password}';
$conf["db_charset"] = 'utf8'; // same charset as html-charset - (HTML --> MYSQL: "utf-8" --> "utf8", "iso-8859-1" --> "latin1")
define("DB_TYPE",$conf["db_type"]);
define("DB_HOST",$conf["db_host"]);
define("DB_DATABASE",$conf["db_database"]);
define("DB_USER",$conf["db_user"]);
define("DB_PASSWORD",$conf["db_password"]);
define("DB_CHARSET",$conf["db_charset"]);
//** Database settings for the master DB. This setting is only used in multiserver setups
$conf["dbmaster_type"] = 'mysql';
$conf["dbmaster_host"] = '{mysql_master_server_host}';
$conf["dbmaster_database"] = '{mysql_master_server_database}';
$conf["dbmaster_user"] = '{mysql_master_server_ispconfig_user}';
$conf["dbmaster_password"] = '{mysql_master_server_ispconfig_password}';
//** Paths
define('ISPC_ROOT_PATH', realpath(dirname(__FILE__).'/../')); // The main ROOT is the parent directory to this file, ie Interface/. NO trailing slashes.
define('ISPC_LIB_PATH', ISPC_ROOT_PATH.'/lib');
define('ISPC_CLASS_PATH', ISPC_ROOT_PATH.'/lib/classes');
define('ISPC_WEB_PATH', ISPC_ROOT_PATH.'/web');
define('ISPC_THEMES_PATH', ISPC_ROOT_PATH.'/web/themes');
define('ISPC_WEB_TEMP_PATH', ISPC_WEB_PATH.'/temp'); // Path for downloads, accessible via browser
define('ISPC_CACHE_PATH', ISPC_ROOT_PATH.'/cache');
//** Paths (Do not change!)
$conf["rootpath"] = substr(dirname(__FILE__),0,-4);
$conf["fs_div"] = "/"; // File system divider, "\\" on windows and "/"" on linux and unix
$conf["classpath"] = $conf["rootpath"].$conf["fs_div"]."lib".$conf["fs_div"]."classes";
$conf["temppath"] = $conf["rootpath"].$conf["fs_div"]."temp";
define("FS_DIV",$conf["fs_div"]);
define("SERVER_ROOT",$conf["rootpath"]);
define("INCLUDE_ROOT",SERVER_ROOT.FS_DIV."lib");
define("CLASSES_ROOT",INCLUDE_ROOT.FS_DIV."classes");
//** Server
$conf['app_title'] = ISPC_APP_TITLE;
$conf['app_version'] = ISPC_APP_VERSION;
$conf['app_link'] = 'http://www.ispconfig.org/';
$conf['modules_available'] = 'admin,mail,sites,monitor,client,dns,help';
$conf["server_id"] = "{server_id}";
//** Interface
define('ISPC_INTERFACE_MODULES_ENABLED', 'mail,sites,dns,tools');
//** Logging
$conf["log_file"] = '/var/log/ispconfig/ispconfig.log';
$conf["log_priority"] = {ispconfig_log_priority}; // 0 = Debug, 1 = Warning, 2 = Error
//** Allow software package installations
$conf['software_updates_enabled'] = false;
//** Themes
$conf["theme"] = 'default';
$conf["html_content_encoding"] = 'utf-8'; // example: utf-8, iso-8859-1, ...
$conf["logo"] = 'themes/default/images/ispc_logo.png';
//** Default Language
$conf["language"] = 'en';
//** Misc.
$conf["interface_logout_url"] = ""; // example: http://www.domain.tld/
//** Auto Load Modules
$conf["start_db"] = true;
$conf["start_session"] = true;
//** Constants
define("LOGLEVEL_DEBUG",0);
define("LOGLEVEL_WARN",1);
define("LOGLEVEL_ERROR",2);
?>
interface/lib/app.inc.php
View file @ 0cef61a3
<?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.
*/
/*
Application Class
*/
ob_start('ob_gzhandler');
class app {
private $_language_inc = 0;
private $_wb;
private $_loaded_classes = array();
private $_conf;
public function __construct()
{
global $conf;
$this->_conf = $conf;
if($this->_conf['start_db'] == true) {
$this->load('db_'.$this->_conf['db_type']);
$this->db = new db;
}
//* Start the session
if($this->_conf['start_session'] == true) {
session_start();
//* Initialize session variables
if(!isset($_SESSION['s']['id']) ) $_SESSION['s']['id'] = session_id();
if(empty($_SESSION['s']['theme'])) $_SESSION['s']['theme'] = $conf['theme'];
if(empty($_SESSION['s']['language'])) $_SESSION['s']['language'] = $conf['language'];
}
$this->uses('auth');
}
public function uses($classes)
{
$cl = explode(',', $classes);
if(is_array($cl)) {
foreach($cl as $classname){
$classname = trim($classname);
//* Class is not loaded so load it
if(!array_key_exists($classname, $this->_loaded_classes)){
include_once(ISPC_CLASS_PATH."/$classname.inc.php");
$this->$classname = new $classname();
$this->_loaded_classes[$classname] = true;
}
}
}
}
public function load($files)
{
$fl = explode(',', $files);
if(is_array($fl)) {
foreach($fl as $file){
$file = trim($file);
include_once(ISPC_CLASS_PATH."/$file.inc.php");
}
}
}
/** Priority values are: 0 = DEBUG, 1 = WARNING, 2 = ERROR */
public function log($msg, $priority = 0)
{
if($priority >= $this->_conf['log_priority']) {
if (is_writable($this->_conf['log_file'])) {
if (!$fp = fopen ($this->_conf['log_file'], 'a')) {
$this->error('Unable to open logfile.');
}
if (!fwrite($fp, date('d.m.Y-H:i').' - '. $msg."\r\n")) {
$this->error('Unable to write to logfile.');
}
fclose($fp);
} else {
$this->error('Unable to write to logfile.');
}
}
}
/** Priority values are: 0 = DEBUG, 1 = WARNING, 2 = ERROR */
public function error($msg, $next_link = '', $stop = true, $priority = 1)
{
//$this->uses("error");
//$this->error->message($msg, $priority);
if($stop == true){
$msg = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Error</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link href="../themes/default/css/central.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div class="uniForm">
<div id="errorMsg">
<h3>Error</h3>
<ol>
<li>'.$msg;
if($next_link != '') $msg .= '<a href="'.$next_link.'">Next</a>';
$msg .= '</li>
</ol>
</div>
</div>
</body>
</html>';
die($msg);
} else {
echo $msg;
if($next_link != '') echo "<a href='$next_link'>Next</a>";
}
}
/** Loads language */
public function lng($text)
{
if($this->_language_inc != 1) {
//* loading global and module Wordbook
// TODO: this need to be made clearer somehow - pedro
@include_once(ISPC_ROOT_PATH.'/lib/lang/'.$_SESSION['s']['language'].'.lng');
if(isset($_SESSION['s']['module']['name']) && isset($_SESSION['s']['language'])) {
$lng_file = ISPC_ROOT_PATH.'/web/'.$_SESSION['s']['module']['name'].'/lib/lang/'.$_SESSION['s']['language'].'.lng';
if(!file_exists($lng_file)) $lng_file = ISPC_ROOT_PATH.'/web/'.$_SESSION['s']['module']['name'].'/lib/lang/en.lng';
@include_once($lng_file);
}
$this->_wb = $wb;
$this->_language_inc = 1;
}
if(!empty($this->_wb[$text])) {
$text = $this->_wb[$text];
}
return $text;
}
public function tpl_defaults()
{
$this->tpl->setVar('app_title', $this->_conf['app_title']);
$this->tpl->setVar('app_version', $this->_conf['app_version']);
$this->tpl->setVar('app_link', $this->_conf['app_link']);
if(isset($this->_conf['app_logo']) && $this->_conf['app_logo'] != '' && @is_file($this->_conf['app_logo'])){
$this->tpl->setVar('app_logo', '<img src="'.$this->_conf['app_logo'].'">');
} else {
$this->tpl->setVar('app_logo', '&nbsp;');
}
$this->tpl->setVar('phpsessid', session_id());
$this->tpl->setVar('theme', $_SESSION['s']['theme']);
$this->tpl->setVar('html_content_encoding', $this->_conf['html_content_encoding']);
$this->tpl->setVar('delete_confirmation', $this->lng('delete_confirmation'));
//print_r($_SESSION);
if(isset($_SESSION['s']['module']['name'])) {
$this->tpl->setVar('app_module', $_SESSION['s']['module']['name']);
}
if(isset($_SESSION['s']['user']) && $_SESSION['s']['user']['typ'] == 'admin') {
$this->tpl->setVar('is_admin', 1);
}
if(isset($_SESSION['s']['user']) && $this->auth->has_clients($_SESSION['s']['user']['userid'])) {
$this->tpl->setVar('is_reseller', 1);
}
}
} // end class
//** Initialize application (app) object
//* possible future = new app($conf);
$app = new app();
<?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.
*/
/*
Application Class
*/
ob_start('ob_gzhandler');
class app {
private $_language_inc = 0;
private $_wb;
private $_loaded_classes = array();
private $_conf;
public function __construct()
{
global $conf;
if (isset($_REQUEST['GLOBALS']) || isset($_FILES['GLOBALS']) || isset($_REQUEST['s']) || isset($_REQUEST['s_old']) || isset($_REQUEST['conf'])) {
die('Internal Error: var override attempt detected');
}
$this->_conf = $conf;
if($this->_conf['start_db'] == true) {
$this->load('db_'.$this->_conf['db_type']);
$this->db = new db;
}
//* Start the session
if($this->_conf['start_session'] == true) {
session_start();
//* Initialize session variables
if(!isset($_SESSION['s']['id']) ) $_SESSION['s']['id'] = session_id();
if(empty($_SESSION['s']['theme'])) $_SESSION['s']['theme'] = $conf['theme'];
if(empty($_SESSION['s']['language'])) $_SESSION['s']['language'] = $conf['language'];
}
$this->uses('auth');
}
public function uses($classes)
{
$cl = explode(',', $classes);
if(is_array($cl)) {
foreach($cl as $classname){
$classname = trim($classname);
//* Class is not loaded so load it
if(!array_key_exists($classname, $this->_loaded_classes)){
include_once(ISPC_CLASS_PATH."/$classname.inc.php");
$this->$classname = new $classname();
$this->_loaded_classes[$classname] = true;
}
}
}
}
public function load($files)
{
$fl = explode(',', $files);
if(is_array($fl)) {
foreach($fl as $file){
$file = trim($file);
include_once(ISPC_CLASS_PATH."/$file.inc.php");
}
}
}
/** Priority values are: 0 = DEBUG, 1 = WARNING, 2 = ERROR */
public function log($msg, $priority = 0)
{
if($priority >= $this->_conf['log_priority']) {
if (is_writable($this->_conf['log_file'])) {
if (!$fp = fopen ($this->_conf['log_file'], 'a')) {
$this->error('Unable to open logfile.');