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start_session.php
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start_session.php
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<?php
/*
part-db version 0.1
Copyright (C) 2005 Christoph Lechner
http://www.cl-projects.de/
part-db version 0.2+
Copyright (C) 2009 K. Jacobs and others (see authors.php)
http://code.google.com/p/part-db/
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @file start_session.php
*
* @brief This file must be included in every PHP file which produces HTML output!
*/
// set HTTP charset to UTF-8
header('Content-type: text/html; charset=utf-8');
$BASE_tmp = str_replace('\\', '/', dirname(__FILE__)); // temporary base path of Part-DB, without slash at the end
include_once($BASE_tmp.'/lib/lib.start_session.php');
/********************************************************************************
*
* define an exception handler for uncaught exceptions
*
*********************************************************************************/
function exception_handler($e)
{
print_messages_without_template( 'Part-DB: Schwerwiegender Fehler!', NULL,
'<font color="red"><strong>Es ist ein schwerwiegender Fehler aufgetreten:'.
'<br><br>'.nl2br($e->getMessage()).'</strong><br><br>'.
'(Exception wurde geworfen in '.$e->getFile().', Zeile '.$e->getLine().')</font>');
exit;
}
set_exception_handler('exception_handler');
/********************************************************************************
*
* For the Update from Part-DB 0.2.2 to 0.3.0:
* Move the file "config.php" and the folders "backup", "media" and "log" to "data/..."
*
*********************************************************************************/
$old_config_exists = file_exists($BASE_tmp.'/config.php');
$old_backup_exists = file_exists($BASE_tmp.'/backup');
$old_media_exists = file_exists($BASE_tmp.'/media');
$old_log_exists = file_exists($BASE_tmp.'/log');
if (($old_config_exists) || ($old_backup_exists) || ($old_media_exists) || ($old_log_exists))
{
$messages = '<strong>Bitte verschieben Sie die folgenden Dateien und Ordner ins Verzeichnis "data": <br><br>';
if ($old_config_exists) {$messages .= '"config.php" --> "data/config.php"<br>';}
if ($old_backup_exists) {$messages .= '"backup/" --> "data/backup/"<br>';}
if ($old_media_exists) {$messages .= '"media/" --> "data/media/"<br>';}
if ($old_log_exists) {$messages .= '"log/" --> "data/log/"<br>';}
$messages .= '<br><font color="red">WICHTIG:<br>Kopieren Sie jeweils nur den Inhalt der genannten Ordner, nicht den ganzen Ordner an sich!<br>'.
'Die Zielordner enthalten bereits (teilweise versteckte) Dateien, die auf keinen Fall überschrieben werden dürfen!<br>'.
'Kopieren Sie also nur den Inhalt dieser Ordner und löschen Sie danach die alten, leeren Ordner im Hauptverzeichnis.</font></strong>';
print_messages_without_template('Part-DB', 'Update von Part-DB: Manuelle Eingriffe notwendig', $messages);
exit;
}
/********************************************************************************
*
* include config files
*
*********************************************************************************/
include_once($BASE_tmp.'/config_defaults.php'); // first, we load all default values of the $config array...
if (file_exists($BASE_tmp.'/data/config.php') && is_readable($BASE_tmp.'/data/config.php'))
include_once($BASE_tmp.'/data/config.php'); // ...and then we overwrite them with the user settings, if they exist
if (count($manual_config) > 0) // $manual_config is defined in "config_defaults.php" and can be filled in "config.php"
$config = array_merge($config, $manual_config); // if there are manual configs, add them to $config
/********************************************************************************
*
* define directory constants of the part-db installation
*
* please note: we always use slashes, even if the script runs on Windows!
*
* If the paths BASE, DOCUMENT_ROOT or BASE_RELATIVE are not correct,
* the user can set them manually in his config.php.
* Example how to define it in the config.php: $manual_config['BASE'] = '/my/base';
*
*********************************************************************************/
// directory to the part-db installation, without slash at the end
// Example (UNIX/Linux): "/var/www/part-db"
// Example (Windows): "C:/wamp/www/part-db"
if (isset($config['BASE']))
define('BASE', $config['BASE']);
else
define('BASE', $BASE_tmp);
// server-directory without slash at the end
// Example (UNIX/Linux): "/var/www"
// Example (Windows): "C:/wamp/www"
if (isset($config['DOCUMENT_ROOT']))
define('DOCUMENT_ROOT', $config['DOCUMENT_ROOT']);
elseif (isset($_SERVER['DOCUMENT_ROOT']))
define('DOCUMENT_ROOT', rtrim(str_replace('\\', '/', $_SERVER['DOCUMENT_ROOT']), '/'));
elseif (isset($_SERVER['SCRIPT_FILENAME']) && isset($_SERVER['PHP_SELF']))
define('DOCUMENT_ROOT', rtrim(str_replace('\\', '/', substr($_SERVER['SCRIPT_FILENAME'], 0, 0-strlen($_SERVER['PHP_SELF'])))));
elseif (isset($_SERVER['PATH_TRANSLATED']) && isset($_SERVER['PHP_SELF']))
define('DOCUMENT_ROOT', rtrim(str_replace('\\', '/', substr(str_replace('\\\\', '\\', $_SERVER['PATH_TRANSLATED']), 0, 0-strlen($_SERVER['PHP_SELF'])))));
else
{
$messages = 'Die Konstante "DOCUMENT_ROOT" konnte auf Ihrem Server nicht ermittelt werden.<br>'.
'Bitte definieren Sie diese Konstante manuell in Ihrer Konfigurationsdatei "data/config.php".';
print_messages_without_template('Part-DB', 'DOCUMENT_ROOT kann nicht ermittelt werden', $messages);
exit;
}
// the part-db installation directory without document root, without slash at the end
// Example (UNIX/Linux): "/part-db"
// Example (Windows): "/part-db"
if (isset($config['BASE_RELATIVE']))
define('BASE_RELATIVE', $config['BASE_RELATIVE']);
elseif (mb_strpos(BASE, DOCUMENT_ROOT) === false) // workaround for STRATO servers, see german post on uC.net:
define('BASE_RELATIVE', '.'); // http://www.mikrocontroller.net/topic/269289#3152928
else
define('BASE_RELATIVE', str_replace(DOCUMENT_ROOT, '', BASE));
// for debugging uncomment these lines:
//print 'BASE = "'.BASE.'"<br>';
//print 'DOCUMENT_ROOT = "'.DOCUMENT_ROOT.'"<br>';
//print 'BASE_RELATIVE = "'.BASE_RELATIVE.'"<br>';
//print 'DIRECTORY_SEPARATOR = "'.DIRECTORY_SEPARATOR.'"<br>';
//exit;
/********************************************************************************
*
* make some checks
*
*********************************************************************************/
$messages = check_requirements();
if (count($messages) > 0)
{
print_messages_without_template('Part-DB', 'Mindestanforderungen von Part-DB nicht erfüllt!',
'<font color="red"><strong>•'.implode('<br>•', $messages).'</strong></font><br><br>'.
'Nähere Informationen gibt es in der <a target="_blank" href="'.BASE_RELATIVE.
'/documentation/dokuwiki/doku.php?id=anforderungen">Dokumentation</a>.');
exit;
}
$messages = check_file_permissions();
if (count($messages) > 0)
{
$message = '<strong><font color="red">';
foreach ($messages as $msg)
$message .= '•'.$msg.'<br>';
$message .= '</font></strong><br><br>';
$message .= 'Nähere Informationen zu den Dateirechten gibt es in der <a target="_blank" href="'.BASE_RELATIVE.
'/documentation/dokuwiki/doku.php?id=installation">Dokumentation</a>.<br><br>';
$message .= '<form action="" method="post"><input type="submit" value="Seite neu laden"></form>';
print_messages_without_template('Part-DB', 'Anpassung der Rechte von Verzeichnissen und Dateien', $message);
exit;
// please note: the messages and the "exit;" here are very important, we mustn't continue the script!
// the reasen is: if the config.php is not readable, the array $config is now not loaded successfully.
}
$message = check_if_config_is_valid();
if (is_string($message))
{
print_messages_without_template('Part-DB', 'Ihre config.php ist fehlerhaft!',
'<font color="red"><strong>'.$message.'</strong></font><br><br>'.
'Nähere Informationen gibt es in der <a target="_blank" href="'.BASE_RELATIVE.
'/documentation/dokuwiki/doku.php?id=installation">Dokumentation</a>.<br><br>'.
'<form action="" method="post"><input type="submit" value="Seite neu laden"></form>');
exit;
}
/********************************************************************************
*
* update the config.php if the system is newer than the user's config.php
*
*********************************************************************************/
if (($config['system']['current_config_version'] < $config['system']['latest_config_version'])
&& (file_exists(BASE.'/data/config.php')) && (is_readable(BASE.'/data/config.php'))
&& (filesize(BASE.'/data/config.php') > 0))
{
include_once(BASE.'/updates/config_update_steps.php');
try
{
$update_messages = update_users_config_php();
$message = '<strong><font color="darkgreen">Ihre config.php wurde erfolgreich aktualisiert!</font></strong><br><br>'.
'Es kann sein, dass jetzt der Installationsassistent startet, '.
'um noch einige neue Einstellungen zu tätigen.<br><br>';
if (count($update_messages) > 0)
{
$message .= '<strong><font color="red">';
foreach ($update_messages as $text)
$message .= '•'.$text.'<br>';
$message .= '</font></strong><br>';
}
}
catch (Exception $e)
{
$message = '<strong><font color="red">Es gab ein Fehler bei der Aktualisierung ihrer config.php:<br><br>'.
nl2br($e->getMessage()).'</font></strong><br><br>';
}
$message .= '<form action="" method="post"><input type="submit" value="Seite neu laden"></form>';
print_messages_without_template('Part-DB', 'Aktualisierung ihrer config.php', $message);
exit;
}
$config['html']['http_charset'] = 'utf-8'; ///< @todo remove this later; see config_defaults.php
/********************************************************************************
*
* set internal encoding / timezone / locale / error reporting
*
*********************************************************************************/
if (($config['debug']['enable']) && ( ! $config['debug']['template_debugging_enable'])) // template debugging produces a lot of warnings!
{
error_reporting(E_ALL & ~E_STRICT);
@ini_set("display_errors", 1);
}
else
@ini_set("display_errors", 0);
mb_internal_encoding(/*$config['html']['http_charset']*/ 'UTF-8');
mb_regex_encoding('UTF-8');
date_default_timezone_set($config['timezone']);
own_setlocale(LC_ALL, $config['language']);
/********************************************************************************
*
* start session
*
*********************************************************************************/
session_name('Part-DB');
session_start();
/********************************************************************************
*
* autoload function for classes
*
*********************************************************************************/
function __autoload($classname)
{
if (strpos($classname, 'vlib') === 0)
include_once(BASE.'/lib/vlib/'.$classname.'.php');
else
include_once(BASE.'/lib/class.'.$classname.'.php');
}
/********************************************************************************
*
* include libraries
*
*********************************************************************************/
include_once(BASE.'/lib/lib.functions.php');
include_once(BASE.'/lib/lib.debug.php');
include_once(BASE.'/lib/lib.php');
?>