<?php
/*********************************************************************
class.misc.php
Misc collection of useful generic helper functions.
Peter Rotich <peter@osticket.com>
Copyright (c) 2006-2013 osTicket
http://www.osticket.com
Released under the GNU General Public License WITHOUT ANY WARRANTY.
See LICENSE.TXT for details.
vim: expandtab sw=4 ts=4 sts=4:
**********************************************************************/
class Misc {
function randCode($len=8, $chars=false) {
$chars = $chars ?: 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_=';
// Determine the number of bits we need
$char_count = strlen($chars);
$bits_per_char = ceil(log($char_count, 2));
$bytes = ceil(4 * $len / floor(32 / $bits_per_char));
// Pad to 4 byte boundary
$bytes += (4 - ($bytes % 4)) % 4;
// Fetch some random data blocks
$data = Crypto::random($bytes);
$mask = (1 << $bits_per_char) - 1;
$loops = (int) (32 / $bits_per_char);
$output = '';
$ints = unpack('V*', $data);
foreach ($ints as $int) {
for ($i = $loops; $i > 0; $i--) {
$output .= $chars[($int & $mask) % $char_count];
$int >>= $bits_per_char;
}
}
return substr($output, 0, $len);
}
function __rand_seed($value=0) {
// Form a 32-bit figure for the random seed with the lower 16-bits
// the microseconds of the current time, and the upper 16-bits from
// received value
$seed = ((int) $value % 65535) << 16;
$seed += (int) ((double) microtime() * 1000000) % 65535;
mt_srand($seed);
}
/* Helper used to generate ticket IDs */
function randNumber($len=6) {
$number = '';
for ($i=0; $i<$len; $i++) {
$min = ($i == 0) ? 1 : 0;
$number .= mt_rand($min, 9);
}
return (int) $number;
}
/* misc date helpers...this will go away once we move to php 5 */
function db2gmtime($var){
static $dbtz;
global $cfg;
if (!$var || !$cfg)
return;
if (!isset($dbtz))
$dbtz = new DateTimeZone($cfg->getDbTimezone());
$dbtime = is_int($var) ? $var : strtotime($var);
$D = DateTime::createFromFormat('U', $dbtime);
if (!$D)
// This happens e.g. from negative timestamps
return $var;
return $dbtime - $dbtz->getOffset($D);
}
// Take user's time and return GMT time.
function user2gmtime($timestamp=null, $user=null) {
global $cfg;
$tz = new DateTimeZone($cfg->getTimezone($user));
if ($timestamp && is_int($timestamp)) {
if (!($date = DateTime::createFromFormat('U', $timestamp)))
return $timestamp;
return $timestamp - $tz->getOffset($date);
}
$date = new DateTime($timestamp ?: 'now', $tz);
return $date ? $date->getTimestamp() : $timestamp;
}
//Take user time or gmtime and return db (mysql) time.
function dbtime($var=null){
static $dbtz;
global $cfg;
if (is_null($var) || !$var) {
// Default timezone is set to UTC
$time = time();
} else {
// User time to UTC
$time = self::user2gmtime($var);
}
if (!isset($dbtz)) {
$dbtz = new DateTimeZone($cfg->getDbTimezone());
}
// UTC to db time
$D = DateTime::createFromFormat('U', $time);
return $time + $dbtz->getOffset($D);
}
/*Helper get GM time based on timezone offset*/
function gmtime($time=false, $user=false) {
global $cfg;
$tz = new DateTimeZone($user ? $cfg->getDbTimezone($user) : 'UTC');
if ($time && is_numeric($time))
$time = DateTime::createFromFormat('U', $time);
elseif (!($time = new DateTime($time ?: 'now'))) {
// Old standard
return time() - date('Z');
}
return $time->getTimestamp() - $tz->getOffset($time);
}
/* Needed because of PHP 4 support */
function micro_time() {
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
// Date range for the period in a given time
function date_range($period, $time=false) {
$time = $time ?: self::gmtime();
if (!($dt = Format::parseDateTime($time)))
return null;
// Force UTC
$dt->setTimezone(new DateTimeZone('UTC'));
// Make dt Immutable.
$dt = DateTimeImmutable::createFromMutable($dt);
switch ($period) {
case 'td':
case 'today':
$start = $end = $dt->modify('today');
break;
case 'yd':
case 'yesterday':
$start = $end = $dt->modify('yesterday');
break;
case 'tw':
case 'this-week':
$N = $dt->format('N');
$start = $dt->modify($N == 1 ? 'today' : 'last monday');
$end = $start->modify('next sunday');
break;
case 'tm':
case 'this-month';
$start = $dt->modify('first day of this month');
$end = $dt->modify('last day of this month');
break;
case 'tq':
case 'this-quater':
$offset = ($dt->format('m') - 1) % 3;
$start = $dt->modify(" - $offset month")
->modify('first day of this month');
$end = $start->modify('+ 3 month')->modify('- 1 day');
break;
case 'ty':
case 'this-year':
$start = $dt->modify('january')->modify('first day of this month');
$end = $dt->modify('december')->modify('last day of this month');
break;
case 'lw':
case 'last-week':
//TODO: address edge cases
$start = $dt->modify('- 1 week')->modify('last monday');
$end = $start->modify('next sunday');
break;
case 'lm':
case 'last-month';
$start = $dt->modify('- 1 month')->modify('first day of this month');
$end = $start->modify('last day of this month');
break;
case 'lq':
case 'last-quater':
$offset = (($dt->format('m') - 1) % 3)+3;
$start = $dt->modify(" - $offset month")
->modify('first day of this month');
$end = $start->modify('+ 3 month')->modify('- 1 day');
break;
case 'ly':
case 'last-year':
$start = $dt->modify('- 1 year')
->modify('january')
->modify('first day of this month');
$end = $start->modify('december')->modify('last day of this month');
break;
default:
return null;
}
if ($start)
$start = $start->setTime(00, 00, 00);
if ($end)
$end = $end->setTime(23, 59, 59);
return (object) array('start' => $start, 'end' => $end);
}
//Current page
function currentURL() {
$str = 'http';
if ($_SERVER['HTTPS'] == 'on') {
$str .='s';
}
$str .= '://';
if (!isset($_SERVER['REQUEST_URI'])) { //IIS???
$_SERVER['REQUEST_URI'] = substr($_SERVER['PHP_SELF'],1 );
if (isset($_SERVER['QUERY_STRING'])) {
$_SERVER['REQUEST_URI'].='?'.$_SERVER['QUERY_STRING'];
}
}
if ($_SERVER['SERVER_PORT']!=80) {
$str .= $_SERVER['SERVER_NAME'].':'.$_SERVER['SERVER_PORT'].$_SERVER['REQUEST_URI'];
} else {
$str .= $_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'];
}
return $str;
}
function timeDropdown($hr=null, $min =null,$name='time') {
global $cfg;
//normalize;
if ($hr >= 24)
$hr = $hr%24;
elseif ($hr < 0)
$hr = 0;
elseif ($hr)
$hr = (int) $hr;
else // Default to 5pm
$hr = 17;
if ($min >= 45)
$min = 45;
elseif ($min >= 30)
$min = 30;
elseif ($min >= 15)
$min = 15;
else
$min = 0;
$time = Misc::user2gmtime(mktime(0,0,0));
ob_start();
echo sprintf('<select name="%s" id="%s" style="display:inline-block;width:auto">',$name,$name);
echo '<option value="" selected="selected">—'.__('Time').'—</option>';
for($i=23; $i>=0; $i--) {
for ($minute=45; $minute>=0; $minute-=15) {
$sel=($hr===$i && $min===$minute) ? 'selected="selected"' : '';
$_minute=str_pad($minute, 2, '0',STR_PAD_LEFT);
$_hour=str_pad($i, 2, '0',STR_PAD_LEFT);
$disp = Format::time($time + ($i*3600 + $minute*60 + 1), false);
echo sprintf('<option value="%s:%s" %s>%s</option>',$_hour,$_minute,$sel,$disp);
}
}
echo '</select>';
$output = ob_get_contents();
ob_end_clean();
return $output;
}
function realpath($path) {
$rp = realpath($path);
return $rp ? $rp : $path;
}
}
?>