<?php
/**
* This file is part of Aksara CMS, both framework and publishing
* platform.
*
* @author Aby Dahana <abydahana@gmail.com>
* @copyright (c) Aksara Laboratory <https://aksaracms.com>
* @license MIT License
*
* This source file is subject to the MIT license that is bundled
* with this source code in the LICENSE.txt file.
*
* When the signs is coming, those who don't believe at "that time"
* have only two choices, commit suicide or become brutal.
*/
if (! function_exists('truncate')) {
/**
* Truncate the string
*
* @param string $string
* @param string $pad
*/
function truncate($string = null, int $limit = 0, $pad = '...')
{
if (! $string) {
return;
}
$string = strip_tags(str_replace('<', ' <', $string));
$string = trim(preg_replace('/\s\s+/', ' ', $string));
if ($limit && strlen($string) >= $limit) {
$string = substr($string, 0, $limit) . $pad;
}
return $string;
}
}
if (! function_exists('custom_nl2br')) {
/**
* Limit new line into break
*
* @param string $string
*/
function custom_nl2br($string = '')
{
return preg_replace('/(<br(?: \\/)?>\\r?\\n?\\r?)(?=\\1\\1)/is', '', nl2br($string));
}
}
if (! function_exists('is_json')) {
/**
* Check if JSON is valid
*
* @param mixed|null $string
*/
function is_json($string = null)
{
if ($string && is_string($string)) {
$string = json_decode($string, true);
if (json_last_error() === JSON_ERROR_NONE) {
return true;
}
}
return false;
}
}
if (! function_exists('make_json')) {
/**
* Generate the response as JSON format
*
* @param object|array $data
* @param string $filename
*/
function make_json($data = [], $filename = null)
{
ini_set('max_execution_time', 0);
ini_set('memory_limit', -1);
$html = null;
if (isset($data->html)) {
$html = $data->html;
/* make a backup of "pre" tag */
preg_match_all('#\<pre.*\>(.*)\<\/pre\>#Uis', $html, $pre_backup);
$html = str_replace($pre_backup[0], array_map(function ($element) {return '<pre>' . $element . '</pre>';}, array_keys($pre_backup[0])), $html);
$html = trim(preg_replace(['/\s+/', '/\>[^\S ]+/s', '/[^\S ]+\</s', '/(\>)\s*(\<)/m'], [' ', '>', '<', '$1$2'], $html));
/* rollback the pre tag */
$html = str_replace(array_map(function ($element) {return '<pre>' . $element . '</pre>';}, array_keys($pre_backup[0])), $pre_backup[0], $html);
}
if ($html) {
$data->html = $html;
}
if (isset($data->status) && 200 === $data->status) {
$data->_token = sha1(current_page() . ENCRYPTION_KEY . get_userdata('session_generated'));
}
$data = encoding_fixer($data);
$minify_pattern = [
'/[\r\n\t\s]+/' => ' ', // Replace end of line by space
'/\>[^\S ]+/s' => '>', // Strip whitespaces after tags, except space
'/[^\S ]+\</s' => '<', // Strip whitespaces before tags, except space
'/(\s)+/s' => '\\1', // Shorten multiple whitespace sequences
'/<!--(.|\s)*?-->/' => '' // Remove HTML comments
];
$output = preg_replace(array_keys($minify_pattern), array_values($minify_pattern), json_encode($data));
http_response_code(200);
header('Content-Type: application/json');
if ($filename) {
header('Content-Disposition: attachment; filename=' . $filename . (stripos($filename, '.json') === false ? '.json' : null));
}
// Add security headers
header('Permissions-Policy: geolocation=(self "' . base_url() . '")');
header('Referrer-Policy: same-origin');
header('Set-Cookie: HttpOnly; Secure');
header('Strict-Transport-Security: max-age=31536000; includeSubDomains');
header('X-Content-Type-Options: nosniff');
header('X-Frame-Options: SAMEORIGIN');
header('X-XSS-Protection: 1; mode=block');
exit($output);
}
}
if (! function_exists('encoding_fixer')) {
/**
* Fix malformed UTF-8 characters, possibly incorrectly encoded
* json return
*
* @param array|string $data
*/
function encoding_fixer($data = [])
{
if (is_string($data)) {
$encoding = mb_detect_encoding($data);
$data = mb_convert_encoding($data, 'UTF-8', $encoding);
} elseif (is_array($data)) {
foreach ($data as $key => $val) {
$data[$key] = encoding_fixer($val);
}
}
return $data;
}
}
if (! function_exists('time_ago')) {
/**
* Convert timestamp to time ago
*
* @param string $datetime
*/
function time_ago($datetime = null, bool $short = false, bool $full = true)
{
if (! $datetime) {
return phrase('Just now');
}
$time_difference = time() - strtotime($datetime);
if ($time_difference < 30) {
return phrase('Just now');
}
$condition = [
(12 * 30 * 24 * 60 * 60) => ($full ? phrase('year') : phrase('yr')),
(30 * 24 * 60 * 60) => ($full ? phrase('month') : phrase('mo')),
(7 * 24 * 60 * 60) => phrase('week'),
(24 * 60 * 60) => phrase('day'),
(60 * 60) => ($full ? phrase('hour') : phrase('hr')),
60 => ($full ? phrase('minute') : phrase('min')),
1 => ($full ? phrase('second') : phrase('sec'))
];
foreach ($condition as $seconds => $label) {
$time_period = $time_difference / $seconds;
if ($time_period >= 1) {
$time = round($time_period);
if ($full && ((1 == $time && phrase('day') == $label) || (24 == $time && in_array($label, [phrase('hour'), phrase('hr')])))) {
$time = null;
$label = phrase('Yesterday');
}
return $time . ' ' . $label . ($time > 1 ? phrase('s') : null) . (! $short && $time ? ' ' . phrase('ago') : null);
}
}
return phrase('Just now');
}
}
if (! function_exists('format_slug')) {
/**
* Generate slug from given string
*
* @param mixed|null $string
*/
function format_slug($string = null)
{
$string = strtolower(preg_replace('/[\-\s]+/', '-', preg_replace('/[^A-Za-z0-9-]+/', '-', trim($string))));
if (! preg_match('/(\d{10})/', $string)) {
$string = $string;
}
return $string;
}
}
if (! function_exists('valid_hex')) {
/**
* Validate hex color
*/
function valid_hex(string $string = null)
{
if ($string && preg_match('/#([a-f]|[A-F]|[0-9]){3}(([a-f]|[A-F]|[0-9]){3})?\b/', $string)) {
return true;
}
return false;
}
}
if (! function_exists('number2alpha')) {
/*
* Convert an integer to a string of uppercase letters (A-Z, AA-ZZ, AAA-ZZZ, etc.)
*/
function number2alpha($number = 0, $suffix = null)
{
for ($alpha = ''; $number >= 0; $number = intval($number / 26) - 1) {
$alpha = chr($number % 26 + 0x41) . $alpha;
}
return $alpha . $suffix;
}
}
if (! function_exists('alpha2number')) {
/*
* Convert a string of uppercase letters to an integer.
*/
function alpha2number($alpa = null, $suffix = null)
{
$length = strlen($alpha);
$number = 0;
for ($i = 0; $i < $l; $i++) {
$number = $number * 26 + ord($alpha[$i]) - 0x40;
}
return ($number - 1) . $suffix;
}
}
if (! function_exists('encrypt')) {
/*
* Encryption
*/
function encrypt($passphrase = null)
{
if (! $passphrase) {
return false;
}
$encrypter = \Config\Services::encrypter();
return base64_encode($encrypter->encrypt($passphrase));
}
}
if (! function_exists('decrypt')) {
/*
* Decryption
*/
function decrypt($source = null)
{
if (! $source) {
return false;
}
$encrypter = \Config\Services::encrypter();
return $encrypter->decrypt(base64_decode($source));
}
}
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