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<?php
// core.php - Set up paths, Initiate a database connection, grab config
// Leave this file in the sit root directory for ease of
// including.
//
// SiT (Support Incident Tracker) - Support call tracking system
// Copyright (C) 2010-2014 The Support Incident Tracker Project
// Copyright (C) 2000-2009 Salford Software Ltd. and Contributors
//
// This software may be used and distributed according to the terms
// of the GNU General Public License, incorporated herein by reference.
//
// Prevent script from being run directly (ie. it must always be included
if (realpath(__FILE__) == realpath($_SERVER['SCRIPT_FILENAME']))
{
exit;
}
// Define path constants, done here because this file is the first we include
define ('APPLICATION_FSPATH', realpath(dirname( __FILE__ ) . DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR);
define ('APPLICATION_LIBPATH', realpath(dirname( __FILE__ ).DIRECTORY_SEPARATOR . 'lib') . DIRECTORY_SEPARATOR);
define ('APPLICATION_HELPPATH', realpath(dirname( __FILE__ ).DIRECTORY_SEPARATOR . 'help') . DIRECTORY_SEPARATOR);
define ('APPLICATION_INCPATH', realpath(dirname( __FILE__ ).DIRECTORY_SEPARATOR . 'inc') . DIRECTORY_SEPARATOR);
define ('APPLICATION_I18NPATH', realpath(dirname( __FILE__ ).DIRECTORY_SEPARATOR . 'i18n') . DIRECTORY_SEPARATOR);
define ('APPLICATION_PORTALPATH', realpath(dirname( __FILE__ ).DIRECTORY_SEPARATOR . 'portal') . DIRECTORY_SEPARATOR);
define ('APPLICATION_PLUGINPATH', realpath(dirname( __FILE__ ).DIRECTORY_SEPARATOR . 'plugins') . DIRECTORY_SEPARATOR);
// Define permissions
require (APPLICATION_LIBPATH . 'constants.inc.php');
// Load config defaults
include (APPLICATION_LIBPATH.'defaults.inc.php');
// Server Configuration
@include ('/etc/sit.conf');
// Load config file with customisations
@include (APPLICATION_FSPATH . "config.inc.php");
if ($CONFIG['debug']) $dbg = '';
@include (APPLICATION_I18NPATH . "{$CONFIG['default_i18n']}.inc.php");
if (!function_exists("getmicrotime"))
{
// Set Start Time for Execution Timing
function getmicrotime()
{
list($usec, $sec) = explode(" ",microtime());
return ((float)$usec + (float)$sec);
}
$exec_time_start = getmicrotime();
}
//Prevent Magic Quotes from affecting scripts, regardless of server settings
//Make sure when reading file data,
//PHP doesn't "magically" mangle backslashes!
// This is deprecated in PHP 5.3.0
if (version_compare(PHP_VERSION, "5.3.0", "<"))
{
set_magic_quotes_runtime(FALSE);
}
/**
* Strip slashes from an array
* @param $data an array
* @return An array with slashes stripped
* @note this function needs to be in core because it's needed to make quotes safe without magic quotes
*/
function stripslashes_array($data)
{
if (is_array($data))
{
foreach ($data as $key => $value)
{
$data[$key] = stripslashes_array($value);
}
return $data;
}
else
{
return stripslashes($data);
}
}
if (get_magic_quotes_gpc())
{
// All these global variables are slash-encoded by default,
// because magic_quotes_gpc is set by default!
// And magic_quotes_gpc affects more than just $_GET, $_POST, and $_COOKIE)
// We don't strip slashes from $_FILES as of 3.32 as this should be safe without
// doing and it will break windows file paths if we do
$_SERVER = stripslashes_array($_SERVER);
$_GET = stripslashes_array($_GET);
$_POST = stripslashes_array($_POST);
$_COOKIE = stripslashes_array($_COOKIE);
$_ENV = stripslashes_array($_ENV);
$_REQUEST = stripslashes_array($_REQUEST);
$HTTP_SERVER_VARS = stripslashes_array($HTTP_SERVER_VARS);
$HTTP_GET_VARS = stripslashes_array($HTTP_GET_VARS);
$HTTP_POST_VARS = stripslashes_array($HTTP_POST_VARS);
$HTTP_COOKIE_VARS = stripslashes_array($HTTP_COOKIE_VARS);
$HTTP_POST_FILES = stripslashes_array($HTTP_POST_FILES);
$HTTP_ENV_VARS = stripslashes_array($HTTP_ENV_VARS);
if (isset($_SESSION))
{
#These are unconfirmed (?)
$_SESSION = stripslashes_array($_SESSION, '');
$HTTP_SESSION_VARS = stripslashes_array($HTTP_SESSION_VARS, '');
}
// The $GLOBALS array is also slash-encoded, but when all the above are
// changed, $GLOBALS is updated to reflect those changes. (Therefore
// $GLOBALS should never be modified directly). $GLOBALS also contains
// infinite recursion, so it's dangerous...
}
// Sanitise the PHP_SELF server superglobal against XSS attacks
$_SERVER['PHP_SELF'] = htmlentities(strip_tags($_SERVER['PHP_SELF']), ENT_QUOTES, 'utf-8');
if ($CONFIG['db_username'] == '' OR $CONFIG['db_database'] == '')
{
$msg = urlencode(base64_encode("Could not connect to the database because the database configuration is missing. Have you configured database settings? Can your config file be read?"));
header("Location: setup.php?msg={$msg}&new=1");
exit;
}
// Connect to Database server
$db = @mysql_connect($CONFIG['db_hostname'], $CONFIG['db_username'], $CONFIG['db_password']);
if (mysql_error())
{
$msg = urlencode(base64_encode("Could not connect to database server '{$CONFIG['db_hostname']}'"));
header("Location: {$CONFIG['application_webpath']}setup.php?msg={$msg}");
exit;
}
// mysql_query("SET time_zone = {$CONFIG['timezone']}");
// Select database
mysql_select_db($CONFIG['db_database'], $db);
if (mysql_error())
{
// TODO add some detection for missing database
if (strpos(mysql_error(), 'Unknown database') !== FALSE)
{
$msg = urlencode(base64_encode("Unknown Database '{$CONFIG['db_database']}'"));
header("Location: {$CONFIG['application_webpath']}setup.php?msg={$msg}");
exit;
}
// Attempt socket connection to database to check if server is alive
if (!fsockopen($CONFIG['db_hostname'], 3306, $errno, $errstr, 5))
{
trigger_error("!Error: No response from database server within 5 seconds, Database Server ({$CONFIG['db_hostname']}) is probably down - contact a Systems Administrator", E_USER_ERROR);
}
else
{
$msg = urlencode(base64_encode("Unknown Database '{$CONFIG['db_database']}' / Failed to connect"));
header("Location: {$CONFIG['application_webpath']}setup.php?msg={$msg}");
exit;
}
}
// See Mantis 506 for sql_mode discussion
@mysql_query("SET SESSION sql_mode = '';");
mysql_query("SET NAMES 'utf8'");
mysql_query("SET CHARACTER SET utf8");
// Soft table names
require (APPLICATION_LIBPATH . 'tablenames.inc.php');
// TODO this should really be a function as its used in sit_upgrade_plugin_check as its called from setup.php
// Read config from database (this overrides any config in the config files
$sql = "SELECT * FROM `{$dbConfig}`";
$result = @mysql_query($sql);
if ($result AND mysql_num_rows($result) > 0)
{
while ($conf = mysql_fetch_object($result))
{
if ($conf->value === 'TRUE') $conf->value = TRUE;
if ($conf->value === 'FALSE') $conf->value = FALSE;
if (mb_substr($conf->value, 0, 6) == 'array(')
{
eval("\$val = {$conf->value};");
$conf->value = $val;
}
$CONFIG[$conf->config] = $conf->value;
}
}
// Try to guess the application_uriprefix if it hasn't been set
if (empty($CONFIG['application_uriprefix']))
{
if (!empty($_SERVER['HTTP_REFERER']))
{
$url = parse_url($_SERVER['HTTP_REFERER']);
$scheme = $url['scheme'];
$CONFIG['application_uriprefix'] = htmlspecialchars($url['scheme'], ENT_QUOTES, 'utf-8')
. "://" . htmlspecialchars(substr($url['host'], 0, 255), ENT_QUOTES, 'utf-8');
unset($url);
}
else
{
if (empty($_SERVER['HTTPS']) OR $_SERVER['HTTPS'] == 'off')
{
$scheme = 'https';
}
else
{
$scheme = 'http';
}
if (isset($_SERVER['HTTP_HOST'])) $CONFIG['application_uriprefix'] = "{$scheme}://" . htmlspecialchars(substr($_SERVER['HTTP_HOST'], 0, 255), ENT_QUOTES, 'utf-8');
unset($scheme);
}
}
?>
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