97 lines
2.1 KiB
PHP
97 lines
2.1 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Services\Intune;
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final class PolicySnapshotRedactor
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{
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private const string REDACTED = '[REDACTED]';
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/**
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* @var list<string>
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*/
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private const array SENSITIVE_KEY_PATTERNS = [
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'/password/i',
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'/secret/i',
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'/token/i',
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'/client[_-]?secret/i',
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'/private[_-]?key/i',
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'/shared[_-]?secret/i',
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'/preshared/i',
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'/certificate/i',
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];
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/**
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* @param array<string, mixed> $payload
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* @return array<string, mixed>
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*/
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public function redactPayload(array $payload): array
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{
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return $this->redactValue($payload);
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}
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/**
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* @param array<int, array<string, mixed>>|null $assignments
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* @return array<int, array<string, mixed>>|null
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*/
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public function redactAssignments(?array $assignments): ?array
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{
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if ($assignments === null) {
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return null;
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}
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$redacted = $this->redactValue($assignments);
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return is_array($redacted) ? $redacted : $assignments;
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}
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/**
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* @param array<int, array<string, mixed>>|null $scopeTags
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* @return array<int, array<string, mixed>>|null
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*/
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public function redactScopeTags(?array $scopeTags): ?array
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{
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if ($scopeTags === null) {
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return null;
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}
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$redacted = $this->redactValue($scopeTags);
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return is_array($redacted) ? $redacted : $scopeTags;
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}
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private function isSensitiveKey(string $key): bool
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{
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foreach (self::SENSITIVE_KEY_PATTERNS as $pattern) {
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if (preg_match($pattern, $key) === 1) {
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return true;
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}
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}
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return false;
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}
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private function redactValue(mixed $value): mixed
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{
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if (! is_array($value)) {
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return $value;
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}
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$redacted = [];
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foreach ($value as $key => $item) {
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if (is_string($key) && $this->isSensitiveKey($key)) {
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$redacted[$key] = self::REDACTED;
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continue;
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}
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$redacted[$key] = $this->redactValue($item);
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}
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return $redacted;
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}
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}
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