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<?php
/**
* Utility functions
*
* Standard: PSR-2
* @link http://www.php-fig.org/psr/psr-2
*
* @package snaplib
* @subpackage classes/utilities
* @copyright (c) 2017, Snapcreek LLC
* @license https://opensource.org/licenses/GPL-3.0 GNU Public License
*
*/
defined('ABSPATH') || defined('DUPXABSPATH') || exit;
if (!class_exists('DupLiteSnapLibUtil', false)) {
class DupLiteSnapLibUtil
{
public static function getArrayValue(&$array, $key, $required = true, $default = null)
{
if (array_key_exists($key, $array)) {
return $array[$key];
} else {
if ($required) {
throw new Exception("Key {$key} not present in array");
} else {
return $default;
}
}
}
public static function getCallingFunctionName()
{
$callers = debug_backtrace();
$functionName = $callers[2]['function'];
$className = isset($callers[2]['class']) ? $callers[2]['class'] : '';
return "{$className}::{$functionName}";
}
public static function getWorkPercent($startingPercent, $endingPercent, $totalTaskCount, $currentTaskCount)
{
if ($totalTaskCount > 0) {
$percent = $startingPercent + (($endingPercent - $startingPercent) * ($currentTaskCount / (float) $totalTaskCount));
} else {
$percent = 0;
}
return $percent;
}
public static function make_hash()
{
// IMPORTANT! Be VERY careful in changing this format - the FTP delete logic requires 3 segments with the last segment to be the date in YmdHis format.
try {
if (function_exists('random_bytes') && self::PHP53()) {
return bin2hex(random_bytes(8)).mt_rand(1000, 9999).'_'.date("YmdHis");
} else {
return strtolower(md5(uniqid(rand(), true))).'_'.date("YmdHis");
}
}
catch (Exception $exc) {
return strtolower(md5(uniqid(rand(), true))).'_'.date("YmdHis");
}
}
public static function PHP53()
{
return version_compare(PHP_VERSION, '5.3.2', '>=');
}
/**
* Groups an array into arrays by a given key, or set of keys, shared between all array members.
*
* Based on {@author Jake Zatecky}'s {@link https://github.com/jakezatecky/array_group_by array_group_by()} function.
* This variant allows $key to be closures.
*
* @param array $array The array to have grouping performed on.
* @param mixed $key,... The key to group or split by. Can be a _string_, an _integer_, a _float_, or a _callable_.
* - If the key is a callback, it must return a valid key from the array.
* - If the key is _NULL_, the iterated element is skipped.
* - string|int callback ( mixed $item )
*
* @return array|null Returns a multidimensional array or `null` if `$key` is invalid.
*/
public static function arrayGroupBy(array $array, $key)
{
if (!is_string($key) && !is_int($key) && !is_float($key) && !is_callable($key)) {
trigger_error('array_group_by(): The key should be a string, an integer, or a callback', E_USER_ERROR);
return null;
}
$func = (!is_string($key) && is_callable($key) ? $key : null);
$_key = $key;
// Load the new array, splitting by the target key
$grouped = array();
foreach ($array as $value) {
$key = null;
if (is_callable($func)) {
$key = call_user_func($func, $value);
} elseif (is_object($value) && isset($value->{$_key})) {
$key = $value->{$_key};
} elseif (isset($value[$_key])) {
$key = $value[$_key];
}
if ($key === null) {
continue;
}
$grouped[$key][] = $value;
}
// Recursively build a nested grouping if more parameters are supplied
// Each grouped array value is grouped according to the next sequential key
if (func_num_args() > 2) {
$args = func_get_args();
foreach ($grouped as $key => $value) {
$params = array_merge(array($value), array_slice($args, 2, func_num_args()));
$grouped[$key] = call_user_func_array(array(__CLASS__, 'arrayGroupBy'), $params);
}
}
return $grouped;
}
/**
* Implemented array_key_first
*
* @link https://www.php.net/manual/en/function.array-key-first.php
* @param array $arr
* @return int|string|null
*/
public static function arrayKeyFirst($arr)
{
if (!function_exists('array_key_first')) {
foreach ($arr as $key => $unused) {
return $key;
}
return null;
} else {
return array_key_first($arr);
}
}
/**
* Converts human readable types (10GB) to bytes
*
* @param string $from A human readable byte size such as 100MB
*
* @return int Returns and integer of the byte size
*/
public static function convertToBytes($from)
{
if (is_numeric($from)) {
return $from;
}
$number = substr($from, 0, -2);
switch (strtoupper(substr($from, -2))) {
case "KB": return $number * 1024;
case "MB": return $number * pow(1024, 2);
case "GB": return $number * pow(1024, 3);
case "TB": return $number * pow(1024, 4);
case "PB": return $number * pow(1024, 5);
}
$number = substr($from, 0, -1);
switch (strtoupper(substr($from, -1))) {
case "K": return $number * 1024;
case "M": return $number * pow(1024, 2);
case "G": return $number * pow(1024, 3);
case "T": return $number * pow(1024, 4);
case "P": return $number * pow(1024, 5);
}
return $from;
}
/**
* Sanitize input for XSS code
*
* @param string $val The value to sanitize
*
* @return string Returns the input value cleaned up.
*/
public static function sanitize($input)
{
return filter_var($input, FILTER_SANITIZE_STRING);
}
/**
* remove all non stamo chars from string
*
* @param string $string
* @return string
*/
public static function sanitize_non_stamp_chars($string)
{
return preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x9F]/u', '', $string);
}
/**
* remove all non stamp chars from string and newline
* trim string
*
* @param string $string
* @return string
*/
public static function sanitize_non_stamp_chars_and_newline($string)
{
return preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x9F\r\n]/u', '', $string);
}
/**
* remove all non stamp chars from string and newline
* trim string
*
* @param string $string
* @return string
*/
public static function sanitize_non_stamp_chars_newline_and_trim($string)
{
return trim(self::sanitize_non_stamp_chars_and_newline($string));
}
/**
* Determines whether a PHP ini value is changeable at runtime.
*
* @since 4.6.0
*
* @staticvar array $ini_all
*
* @link https://secure.php.net/manual/en/function.ini-get-all.php
*
* @param string $setting The name of the ini setting to check.
* @return bool True if the value is changeable at runtime. False otherwise.
*/
public static function wp_is_ini_value_changeable($setting)
{
if (function_exists('wp_is_ini_value_changeable')) {
return wp_is_ini_value_changeable($setting);
}
static $ini_all;
if (!isset($ini_all)) {
$ini_all = false;
// Sometimes `ini_get_all()` is disabled via the `disable_functions` option for "security purposes".
if (function_exists('ini_get_all')) {
$ini_all = ini_get_all();
}
}
// Bit operator to workaround https://bugs.php.net/bug.php?id=44936 which changes access level to 63 in PHP 5.2.6 - 5.2.17.
if (isset($ini_all[$setting]['access']) && ( INI_ALL === ( $ini_all[$setting]['access'] & 7 ) || INI_USER === ( $ini_all[$setting]['access'] & 7 ) )) {
return true;
}
// If we were unable to retrieve the details, fail gracefully to assume it's changeable.
if (!is_array($ini_all)) {
return true;
}
return false;
}
/**
* The val value returns if it is between min and max otherwise it returns min or max
*
* @param int $val
* @param int $min
* @param int $max
* @return int
*/
public static function getIntBetween($val, $min, $max)
{
return min((int) $max, max((int) $min, (int) $val));
}
/**
* Gets a specific external variable by name and optionally filters it
* @param int $type <p>One of <b><code>INPUT_GET</code></b>, <b><code>INPUT_POST</code></b>, <b><code>INPUT_COOKIE</code></b>, <b><code>INPUT_SERVER</code></b>, or <b><code>INPUT_ENV</code></b>.</p>
* @param string $variable_name <p>Name of a variable to get.</p>
* @param int $filter <p>The ID of the filter to apply. The Types of filters manual page lists the available filters.</p> <p>If omitted, <b><code>FILTER_DEFAULT</code></b> will be used, which is equivalent to <b><code>FILTER_UNSAFE_RAW</code></b>. This will result in no filtering taking place by default.</p>
* @param mixed $options <p>Associative array of options or bitwise disjunction of flags. If filter accepts options, flags can be provided in "flags" field of array.</p>
* @return mixed <p>Value of the requested variable on success, <b><code>FALSE</code></b> if the filter fails, or <b><code>NULL</code></b> if the <code>variable_name</code> variable is not set. If the flag <b><code>FILTER_NULL_ON_FAILURE</code></b> is used, it returns <b><code>FALSE</code></b> if the variable is not set and <b><code>NULL</code></b> if the filter fails.</p>
* @link http://php.net/manual/en/function.filter-input.php
* @see filter_var(), filter_input_array(), filter_var_array()
* @since PHP 5 >= 5.2.0, PHP 7
*/
public static function filterInputRequest($variable_name, $filter = FILTER_DEFAULT, $options = NULL)
{
if (isset($_GET[$variable_name]) && !isset($_POST[$variable_name])) {
return filter_input(INPUT_GET, $variable_name, $filter, $options);
}
return filter_input(INPUT_POST, $variable_name, $filter, $options);
}
}
}