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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | /** |
| 5 | * SPDX-FileCopyrightText: 2026 LibreCode coop and contributors |
| 6 | * SPDX-License-Identifier: AGPL-3.0-or-later |
| 7 | */ |
| 8 | |
| 9 | namespace OCA\Libresign\Service\Policy\Provider\IdentifyMethods; |
| 10 | |
| 11 | use OCA\Libresign\Service\IdentifyMethodService; |
| 12 | use OCA\Libresign\Service\Policy\Contract\IPolicyDefinition; |
| 13 | use OCA\Libresign\Service\Policy\Contract\IPolicyDefinitionProvider; |
| 14 | use OCA\Libresign\Service\Policy\Model\PolicyContext; |
| 15 | use OCA\Libresign\Service\Policy\Model\PolicyLayer; |
| 16 | use OCA\Libresign\Service\Policy\Model\PolicySpec; |
| 17 | use OCA\Libresign\Service\Policy\Provider\Helper\DelegationLayerHelper; |
| 18 | use OCA\Libresign\Service\Policy\Provider\Helper\PolicyKeyNormalizer; |
| 19 | |
| 20 | final class IdentifyMethodsPolicy implements IPolicyDefinitionProvider { |
| 21 | public const KEY = 'identify_methods'; |
| 22 | public const SYSTEM_APP_CONFIG_KEY = self::KEY; |
| 23 | |
| 24 | public function __construct( |
| 25 | private IdentifyMethodService $identifyMethodService, |
| 26 | ) { |
| 27 | } |
| 28 | |
| 29 | #[\Override] |
| 30 | public function keys(): array { |
| 31 | return [ |
| 32 | self::KEY, |
| 33 | ]; |
| 34 | } |
| 35 | |
| 36 | #[\Override] |
| 37 | public function get(string|\BackedEnum $policyKey): IPolicyDefinition { |
| 38 | $identifyMethodService = $this->identifyMethodService; |
| 39 | return match (PolicyKeyNormalizer::normalize($policyKey)) { |
| 40 | self::KEY => new PolicySpec( |
| 41 | key: self::KEY, |
| 42 | defaultSystemValue: [ |
| 43 | 'factors' => [], |
| 44 | ], |
| 45 | allowedValues: static fn (): array => [], |
| 46 | normalizer: fn (mixed $rawValue): array => IdentifyMethodsPolicyValue::normalize($rawValue, $identifyMethodService), |
| 47 | appConfigKey: self::SYSTEM_APP_CONFIG_KEY, |
| 48 | supportsRequestOverride: true, |
| 49 | requestLifecycle: PolicySpec::LIFECYCLE_REQUEST_SNAPSHOT, |
| 50 | groupPolicyManager: static function (PolicyContext $context, ?PolicyLayer $systemPolicy, array $groupLayers): bool { |
| 51 | $actorRole = $context->getActorRole(); |
| 52 | if ($actorRole->canManageSystemPolicies) { |
| 53 | return true; |
| 54 | } |
| 55 | |
| 56 | if (!$actorRole->canManageGroupPolicies) { |
| 57 | return false; |
| 58 | } |
| 59 | |
| 60 | if ($actorRole->manageableGroupCount < 1) { |
| 61 | return false; |
| 62 | } |
| 63 | |
| 64 | return DelegationLayerHelper::hasExplicitGlobalDelegation($systemPolicy) |
| 65 | || DelegationLayerHelper::hasSystemCreatedGroupDelegation($groupLayers); |
| 66 | }, |
| 67 | systemCreatedGroupRuleEditor: static function (PolicyContext $context, ?PolicyLayer $systemPolicy, PolicyLayer $existingPolicy): bool { |
| 68 | $actorRole = $context->getActorRole(); |
| 69 | if ($actorRole->canManageSystemPolicies) { |
| 70 | return true; |
| 71 | } |
| 72 | |
| 73 | if (!$actorRole->canManageGroupPolicies) { |
| 74 | return false; |
| 75 | } |
| 76 | |
| 77 | if (!$existingPolicy->isVisibleToChild() || !$existingPolicy->isAllowChildOverride() || $existingPolicy->getValue() === null) { |
| 78 | return false; |
| 79 | } |
| 80 | |
| 81 | if (DelegationLayerHelper::hasExplicitGlobalDelegation($systemPolicy)) { |
| 82 | return true; |
| 83 | } |
| 84 | |
| 85 | return $existingPolicy->isCreatedBySystemAdmin(); |
| 86 | }, |
| 87 | supportsGroupAdminDelegation: true, |
| 88 | delegatedValueValidator: static function (mixed $proposedNormalizedValue, mixed $parentSeedNormalizedValue): void { |
| 89 | self::assertDelegatedOverrideOnlyEnablesGrantedFactors($proposedNormalizedValue, $parentSeedNormalizedValue); |
| 90 | }, |
| 91 | ), |
| 92 | default => throw new \InvalidArgumentException('Unknown policy key: ' . PolicyKeyNormalizer::normalize($policyKey)), |
| 93 | }; |
| 94 | } |
| 95 | |
| 96 | private static function assertDelegatedOverrideOnlyEnablesGrantedFactors(mixed $proposedNormalizedValue, mixed $parentSeedNormalizedValue): void { |
| 97 | $parentEnabledFactorNames = self::extractEnabledFactorNames($parentSeedNormalizedValue); |
| 98 | $proposedEnabledFactorNames = self::extractEnabledFactorNames($proposedNormalizedValue); |
| 99 | |
| 100 | $invalidFactorNames = array_values(array_diff($proposedEnabledFactorNames, $parentEnabledFactorNames)); |
| 101 | if ($invalidFactorNames !== []) { |
| 102 | throw new \InvalidArgumentException('Delegated identify methods overrides can only enable factors already granted by the system administrator.'); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | /** @return list<string> */ |
| 107 | private static function extractEnabledFactorNames(mixed $normalizedValue): array { |
| 108 | if (!is_array($normalizedValue)) { |
| 109 | return []; |
| 110 | } |
| 111 | |
| 112 | $enabledFactorNames = []; |
| 113 | foreach (IdentifyMethodsPolicyValue::extractFactors($normalizedValue) as $factor) { |
| 114 | $name = isset($factor['name']) && is_string($factor['name']) |
| 115 | ? trim($factor['name']) |
| 116 | : ''; |
| 117 | if ($name === '' || !($factor['enabled'] ?? false)) { |
| 118 | continue; |
| 119 | } |
| 120 | |
| 121 | $enabledFactorNames[] = $name; |
| 122 | } |
| 123 | |
| 124 | return array_values(array_unique($enabledFactorNames)); |
| 125 | } |
| 126 | |
| 127 | } |