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