forked from paxed/rash-qdb-fork
/
util_funcs.php
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/
util_funcs.php
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<?php
/* Change urls to clickable links, and change newlines to br-tags. */
function mangle_quote_text($txt)
{
$txt = preg_replace('/((http|ftp):\/\/([\w\d\-]+)(\.[\w\d\-]+){1,})([\/\?\w\d\.=&+%~_\-]+(#[\w\d_]+)?)?/', '<A href="\\1\\5">\\1\\5</A>', $txt);
$txt = nl2br($txt);
return $txt;
}
function get_number_limit($param, $min, $max)
{
if (isset($param) && preg_match('/^[0-9]+$/', $param)) {
$limit = (int)$param;
if ($limit < $min) $limit = $min;
else if ($limit > $max) $limit = $max;
} else $limit = $max;
return $limit;
}
function db_tablename($name)
{
include 'settings.php';
return $CONFIG['db_table_prefix'].'_'.$name;
}
function urlargs($ar1, $ar2 = null, $ar3 = null)
{
include 'settings.php';
if ($ar2 === null) return $ar1;
if ($ar3 === null) return implode($CONFIG['GET_SEPARATOR_HTML'], array($ar1, $ar2));
return implode($CONFIG['GET_SEPARATOR_HTML'], array($ar1, $ar2, $ar3));
}
function autologin()
{
if (isset($_COOKIE['user']) && isset($_COOKIE['passwd']) && isset($_COOKIE['userid'])) {
global $db;
$pass = $_COOKIE['passwd'];
$user = $_COOKIE['user'];
$userid = $_COOKIE['userid'];
$res =& $db->query("SELECT * FROM ".db_tablename('users')." WHERE id=".$db->quote((int)$userid)." AND user=".$db->quote($user));
if (DB::isError($res)) return;
$row = $res->fetchRow(DB_FETCHMODE_ASSOC);
if (!isset($row['password'])) return;
$passchk = md5($row['password'].$row['salt']);
if ($pass == $passchk) {
$_SESSION['user'] = $row['user'];
$_SESSION['level'] = $row['level'];
$_SESSION['userid'] = $row['id'];
$_SESSION['logged_in'] = 1;
mk_cookie('user', $row['user']);
mk_cookie('userid', $row['id']);
mk_cookie('passwd', $passchk);
}
}
}
/* $row = array with keys 'user', 'id', 'level', 'password', 'salt' */
function set_user_logged($row)
{
$_SESSION['user'] = $row['user']; // site-wide accessible username
$_SESSION['level'] = $row['level']; // site-wide accessible level
$_SESSION['userid'] = $row['id'];
$_SESSION['logged_in'] = 1; // site-wide accessible login variable
if (isset($_POST['remember_login'])) {
mk_cookie('user', $row['user']);
mk_cookie('userid', $row['id']);
mk_cookie('passwd', md5($row['password'].$row['salt']));
}
header("Location: http://" . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']));
}
function set_user_logout()
{
session_unset($_SESSION['user']);
session_unset($_SESSION['logged_in']);
session_unset($_SESSION['level']);
session_unset($_SESSION['userid']);
mk_cookie('user');
mk_cookie('userid');
mk_cookie('passwd');
header('Location: http://' . $_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']));
}
function set_voteip($salt)
{
if (isset($_SESSION['voteip'])) {
if (!isset($_COOKIE['voteip'])) {
$addr = $_SESSION['voteip'];
mk_cookie('voteip', $addr . '-' . md5($addr . $salt));
$_SESSION['voteip'] = $addr;
}
} else {
if (isset($_COOKIE['voteip'])) {
$arr = explode('-', $_COOKIE['voteip'], 2);
$addr = $arr[0];
$hash = $arr[1];
if (preg_match("/^(([1-9]?[0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]).){3}([1-9]?[0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$/", $addr)) {
if (md5($addr . $salt) != $hash)
$addr = getenv("REMOTE_ADDR");
mk_cookie('voteip', $addr . '-' . md5($addr . $salt));
$_SESSION['voteip'] = $addr;
} else {
/* illegal ip in cookie */
$addr = getenv("REMOTE_ADDR");
mk_cookie('voteip', $addr . '-' . md5($addr . $salt));
$_SESSION['voteip'] = $addr;
}
} else {
$addr = getenv("REMOTE_ADDR");
mk_cookie('voteip', $addr . '-' . md5($addr . $salt));
$_SESSION['voteip'] = $addr;
}
}
}
function write_settings($fname, $data)
{
$fp = fopen($fname,"w");
$str = "<?php\n";
if ($data)
foreach ($data as $key=>$val) {
$str .= '$CONFIG[\''.$key.'\'] = '.$val.";\n";
}
if (fwrite($fp, $str, strlen($str)) === FALSE) {
return FALSE;
}
return TRUE;
}
function mk_cookie($name, $data = null)
{
if ($data) {
setcookie($name, $data, time()+3600*24*365, '/');
$_COOKIE[$name] = $data;
} else {
setcookie($name, '', time()-3600, '/');
unset($_COOKIE[$name]);
}
}
/**
* Return a random string
*
* @author Aidan Lister <aidan@php.net>
* @version 2.0
* @param int $length Length of the string you want generated
* @param string $seeds The seeds you want the string to be generated from
*/
function str_rand($length = 8, $seeds = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890')
{
$str = '';
$seeds_count = strlen($seeds);
// Seed
list($usec, $sec) = explode(' ', microtime());
$seed = (float) $sec + ((float) $usec * 100000);
mt_srand($seed);
// Generate
for ($i = 0; $length > $i; $i++) {
$str .= $seeds{mt_rand(0, $seeds_count - 1)};
}
return $str;
}
function is_lang($str)
{
global $lang;
if (isset($lang[$str])) return TRUE;
return FALSE;
}
function lang($str)
{
global $lang;
if (isset($lang[$str])) return $lang[$str];
return $str;
}
function title($title)
{
global $CONFIG, $lang;
$str = ($CONFIG['prefix_short_title'] ? $CONFIG['site_short_title'].': ' : '');
if (preg_match('/^[0-9]+$/', $title)) $str .= sprintf(lang('pagetitle_quotenum'), $title);
else if (is_lang('pagetitle_'.$title)) $str .= lang('pagetitle_'.$title);
else $str .= $CONFIG['site_long_title'];
return $str;
}