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Fipamo/brain/utility/StringTools.php

132 lines
3.6 KiB
PHP

<?php
namespace brain\utility;
use ReallySimpleJWT\Token;
use ReallySimpleJWT\Exception\BuildException;
use Mni\FrontYAML\Parser;
class StringTools
{
public static function createUUID()
{
if (function_exists('com_create_guid') === true) {
return trim(com_create_guid(), '{}');
}
return sprintf(
'%04X%04X-%04X-%04X-%04X-%04X%04X%04X',
mt_rand(0, 65535),
mt_rand(0, 65535),
mt_rand(0, 65535),
mt_rand(16384, 20479),
mt_rand(32768, 49151),
mt_rand(0, 65535),
mt_rand(0, 65535),
mt_rand(0, 65535)
);
}
public static function sanitizeContent($entry)
{
$parser = new Parser();
$rendered = $parser->parse($entry);
$sanitizer = HtmlSanitizer\Sanitizer::create([
'extensions' => ['basic', 'image', 'list', 'code'],
'tags' => [
'img' => [
'allowed_attributes' => ['src', 'alt', 'title', 'class'],
'allowed_hosts' => null,
],
],
]);
$preclean = $sanitizer->sanitize($rendered->getContent());
$cleaned = strip_tags($rendered->getContent(), [
'a',
'br',
'p',
'strong',
'br',
'img',
'iframe',
'ul',
'li',
'i',
'h1',
'h2',
'h3',
'pre',
'code',
]);
return $cleaned;
}
public static function safeString($string)
{
return strtolower(
trim(
preg_replace(
'~[^0-9a-z]+~i',
'_',
html_entity_decode(
preg_replace(
'~&([a-z]{1,2})(?:acute|cedil|circ|grave|lig|orn|ring|slash|th|tilde|uml);~i',
'$1',
htmlentities($string, ENT_QUOTES, 'UTF-8')
),
ENT_QUOTES,
'UTF-8'
)
),
'-'
)
);
}
public static function randomString(int $length)
{
$alphanum = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
$special = '*&!@%^#$';
$alphabet = $alphanum . $special;
$random = openssl_random_pseudo_bytes($length);
$alphabet_length = strlen($alphabet);
$string = '';
for ($i = 0; $i < $length; ++$i) {
$string .= $alphabet[ord($random[$i]) % $alphabet_length];
}
//secret needs to be a valid token
if ($length == 12) {
try {
$secret = Token::create(12, $string, time() + 3600, 'localhost');
return $string;
} catch (BuildException $e) {
//bad secret, so try agiain
//echo "BAD STRING";
return self::randomString(12);
}
if (Token::validate($key, $string)) {
return $string;
} else {
return self::randomString(12);
}
}
}
private static function checkSpecial($string)
{
$specials = ['*', '&', '!', '@', '%', '^', '#', '$'];
$valid = false;
foreach ($specials as $item) {
if (strpos($string, $item)) {
return $valid = true;
}
}
return $valid;
}
}