Viewing file:  WildcardPermission.php (2.96 KB) -rw-r--r--
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<?php
namespace Spatie\Permission;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Str;
use Spatie\Permission\Contracts\Wildcard;
use Spatie\Permission\Exceptions\WildcardPermissionNotProperlyFormatted;
class WildcardPermission implements Wildcard
{
/** @var string */
public const WILDCARD_TOKEN = '*';
/** @var non-empty-string */
public const PART_DELIMITER = '.';
/** @var non-empty-string */
public const SUBPART_DELIMITER = ',';
protected Model $record;
public function __construct(Model $record)
{
$this->record = $record;
}
public function getIndex(): array
{
$index = [];
foreach ($this->record->getAllPermissions() as $permission) {
$index[$permission->guard_name] = $this->buildIndex(
$index[$permission->guard_name] ?? [],
explode(static::PART_DELIMITER, $permission->name),
$permission->name,
);
}
return $index;
}
protected function buildIndex(array $index, array $parts, string $permission): array
{
if (empty($parts)) {
$index[null] = true;
return $index;
}
$part = array_shift($parts);
if (blank($part)) {
throw WildcardPermissionNotProperlyFormatted::create($permission);
}
if (! Str::contains($part, static::SUBPART_DELIMITER)) {
$index[$part] = $this->buildIndex(
$index[$part] ?? [],
$parts,
$permission,
);
}
$subParts = explode(static::SUBPART_DELIMITER, $part);
foreach ($subParts as $subPart) {
if (blank($subPart)) {
throw WildcardPermissionNotProperlyFormatted::create($permission);
}
$index[$subPart] = $this->buildIndex(
$index[$subPart] ?? [],
$parts,
$permission,
);
}
return $index;
}
public function implies(string $permission, string $guardName, array $index): bool
{
if (! array_key_exists($guardName, $index)) {
return false;
}
$permission = explode(static::PART_DELIMITER, $permission);
return $this->checkIndex($permission, $index[$guardName]);
}
protected function checkIndex(array $permission, array $index): bool
{
if (array_key_exists(strval(null), $index)) {
return true;
}
if (empty($permission)) {
return false;
}
$firstPermission = array_shift($permission);
if (
array_key_exists($firstPermission, $index) &&
$this->checkIndex($permission, $index[$firstPermission])
) {
return true;
}
if (array_key_exists(static::WILDCARD_TOKEN, $index)) {
return $this->checkIndex($permission, $index[static::WILDCARD_TOKEN]);
}
return false;
}
}
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