62 lines
1.5 KiB
PHP
62 lines
1.5 KiB
PHP
<?php
|
|
|
|
namespace BookStack\Auth\Access\Mfa;
|
|
|
|
use Illuminate\Support\Str;
|
|
|
|
class BackupCodeService
|
|
{
|
|
/**
|
|
* Generate a new set of 16 backup codes.
|
|
*/
|
|
public function generateNewSet(): array
|
|
{
|
|
$codes = [];
|
|
while (count($codes) < 16) {
|
|
$code = Str::random(5) . '-' . Str::random(5);
|
|
if (!in_array($code, $codes)) {
|
|
$codes[] = strtolower($code);
|
|
}
|
|
}
|
|
|
|
return $codes;
|
|
}
|
|
|
|
/**
|
|
* Check if the given code matches one of the available options.
|
|
*/
|
|
public function inputCodeExistsInSet(string $code, string $codeSet): bool
|
|
{
|
|
$cleanCode = $this->cleanInputCode($code);
|
|
$codes = json_decode($codeSet);
|
|
|
|
return in_array($cleanCode, $codes);
|
|
}
|
|
|
|
/**
|
|
* Remove the given input code from the given available options.
|
|
* Will return a JSON string containing the codes.
|
|
*/
|
|
public function removeInputCodeFromSet(string $code, string $codeSet): string
|
|
{
|
|
$cleanCode = $this->cleanInputCode($code);
|
|
$codes = json_decode($codeSet);
|
|
$pos = array_search($cleanCode, $codes, true);
|
|
array_splice($codes, $pos, 1);
|
|
|
|
return json_encode($codes);
|
|
}
|
|
|
|
/**
|
|
* Count the number of codes in the given set.
|
|
*/
|
|
public function countCodesInSet(string $codeSet): int
|
|
{
|
|
return count(json_decode($codeSet));
|
|
}
|
|
|
|
protected function cleanInputCode(string $code): string
|
|
{
|
|
return strtolower(str_replace(' ', '-', trim($code)));
|
|
}
|
|
}
|