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<?php |
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declare(strict_types=1); |
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namespace Ecodev\Felix\Acl; |
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use Doctrine\Common\Util\ClassUtils; |
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use Ecodev\Felix\Model\CurrentUser; |
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use Ecodev\Felix\Model\Model; |
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use Exception; |
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use Laminas\Permissions\Acl\Assertion\AssertionInterface; |
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use Laminas\Permissions\Acl\Resource\ResourceInterface; |
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use Laminas\Permissions\Acl\Role\RoleInterface; |
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class Acl extends \Laminas\Permissions\Acl\Acl |
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{ |
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/** |
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* The message explaining the last denial. |
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*/ |
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private ?string $message = null; |
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/** |
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* @var string[] |
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*/ |
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private array $reasons = []; |
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private DebugAcl $debugAcl; |
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/** |
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* @var array<string, string> |
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*/ |
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private array $resourceTranslations = []; |
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/** |
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* @var array<string, string> |
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*/ |
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private array $privilegeTranslations = []; |
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public function __construct() |
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{ |
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$this->debugAcl = new DebugAcl(); |
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} |
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public function addRole($role, $parents = null) |
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{ |
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$this->debugAcl->addRole($role, $parents); |
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return parent::addRole($role, $parents); |
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} |
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public function addResource($resource, $parent = null) |
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{ |
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$this->debugAcl->addResource($resource, $parent); |
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return parent::addResource($resource, $parent); |
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} |
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public function allow($roles = null, $resources = null, $privileges = null, ?AssertionInterface $assert = null) |
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{ |
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$this->debugAcl->allow($roles, $resources, $privileges, $assert); |
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return parent::allow($roles, $resources, $privileges, $assert); |
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} |
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public function deny($roles = null, $resources = null, $privileges = null, ?AssertionInterface $assert = null) |
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{ |
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$this->debugAcl->deny($roles, $resources, $privileges, $assert); |
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return parent::deny($roles, $resources, $privileges, $assert); |
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} |
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protected function createModelResource(string $class): ModelResource |
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{ |
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$resource = new ModelResource($class); |
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$this->addResource($resource); |
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return $resource; |
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} |
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/** |
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* Override parent to provide compatibility with MultipleRoles. |
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* |
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* @param null|RoleInterface|string $role |
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* @param null|ResourceInterface|string $resource |
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* @param null|string $privilege |
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*/ |
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public function isAllowed($role = null, $resource = null, $privilege = null): bool |
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{ |
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// Normalize roles |
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if ($role instanceof MultipleRoles) { |
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$roles = $role->getRoles(); |
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} else { |
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$roles = [$role]; |
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} |
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// If at least one role is allowed, then return early |
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foreach ($roles as $role) { |
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if (parent::isAllowed($role, $resource, $privilege)) { |
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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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/** |
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* Return whether the current user is allowed to do something. |
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* |
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* This should be the main method to do all ACL checks. |
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*/ |
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public function isCurrentUserAllowed(Model|string $modelOrResource, string $privilege): bool |
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{ |
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$resource = is_string($modelOrResource) ? $modelOrResource : new ModelResource($this->getClass($modelOrResource), $modelOrResource); |
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$role = $this->getCurrentRole(); |
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$this->reasons = []; |
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$isAllowed = $this->isAllowed($role, $resource, $privilege); |
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$this->message = $this->buildMessage($resource, $privilege, $role, $isAllowed); |
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return $isAllowed; |
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} |
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/** |
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* Set the reason for rejection that will be shown to end-user. |
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* |
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* This method always return false for usage convenience and should be used by all assertions, |
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* instead of only return false themselves. |
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* |
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* @return false |
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*/ |
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public function reject(string $reason): bool |
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{ |
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$this->reasons[] = $reason; |
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return false; |
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} |
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private function getClass(Model $resource): string |
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{ |
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return ClassUtils::getRealClass($resource::class); |
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} |
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private function getCurrentRole(): MultipleRoles|string |
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{ |
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$user = CurrentUser::get(); |
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if (!$user) { |
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return 'anonymous'; |
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} |
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return $user->getRole(); |
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} |
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private function buildMessage(ModelResource|string $resource, ?string $privilege, MultipleRoles|string $role, bool $isAllowed): ?string |
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{ |
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if ($isAllowed) { |
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return null; |
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} |
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if ($resource instanceof ModelResource) { |
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$resource = $resource->getName(); |
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} |
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$user = CurrentUser::get(); |
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$userName = $user ? 'User "' . $user->getLogin() . '"' : 'Non-logged user'; |
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$privilege ??= 'NULL'; |
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$message = "$userName with role $role is not allowed on resource \"$resource\" with privilege \"$privilege\""; |
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$this->reasons = array_unique($this->reasons); |
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$count = count($this->reasons); |
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if ($count === 1) { |
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$message .= ' because ' . $this->reasons[0]; |
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} elseif ($count) { |
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$list = array_map(fn ($reason) => '- ' . $reason, $this->reasons); |
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$message .= ' because:' . PHP_EOL . PHP_EOL . implode(PHP_EOL, $list); |
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} |
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return $message; |
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} |
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/** |
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* Returns the message explaining the last denial, if any. |
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*/ |
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public function getLastDenialMessage(): ?string |
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{ |
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return $this->message; |
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} |
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/** |
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* Show the ACL configuration for the given role in a structured array. |
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* |
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* @return array<array{resource:string, privileges: array<int, array{privilege:null|string, allowed: bool, allowIf: string[], denyIf: string[]}>}> |
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*/ |
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public function show(MultipleRoles|string $role, bool $useTranslations = true): array |
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{ |
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$result = []; |
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/** @var string[] $resources */ |
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$resources = $this->getResources(); |
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sort($resources); |
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foreach ($resources as $resource) { |
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$privileges = []; |
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foreach ($this->debugAcl->getPrivileges() as $privilege) { |
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$privileges[] = $this->debugAcl->show($role, $resource, $privilege); |
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} |
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$result[] = [ |
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'resource' => $resource, |
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'privileges' => $privileges, |
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]; |
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} |
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ksort($result); |
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if ($useTranslations && ($this->resourceTranslations || $this->privilegeTranslations)) { |
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foreach ($result as &$resource) { |
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$resource['resource'] = $this->translate($this->resourceTranslations, $resource['resource']); |
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foreach ($resource['privileges'] as &$privilege) { |
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$privilege['privilege'] = $this->translate($this->privilegeTranslations, $privilege['privilege'] ?? ''); |
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} |
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} |
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} |
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return $result; |
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} |
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/** |
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* Configure the translations for all resources and all privileges for the `show()` method. |
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* |
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* If this is set but one translation is missing, then `show()` will throw an exception when called. |
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* |
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* To disable translation altogether you can pass two empty lists. |
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* |
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* @param array<string, string> $resourceTranslations |
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* @param array<string, string> $privilegeTranslations |
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*/ |
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public function setTranslations(array $resourceTranslations, array $privilegeTranslations): void |
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{ |
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$this->resourceTranslations = $resourceTranslations; |
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$this->privilegeTranslations = $privilegeTranslations; |
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} |
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/** |
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* @param array<string, string> $translations |
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*/ |
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private function translate(array $translations, string $message): string |
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{ |
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return $translations[$message] ?? throw new Exception('Was not marked as translatable: ' . $message); |
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} |
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/** |
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* Returns all non-null privileges indexed by all non-null resources. |
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* |
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* @return array<string, array<string>> |
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*/ |
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public function getPrivilegesByResource(): array |
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{ |
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return $this->debugAcl->getPrivilegesByResource(); |
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} |
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} |
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