Viewing file:  WildcardPermission.php (2.88 KB) -rw-r--r--
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<?php
namespace Spatie\Permission;
use Illuminate\Support\Collection;
use Spatie\Permission\Exceptions\WildcardPermissionNotProperlyFormatted;
class WildcardPermission
{
/** @var string */
const WILDCARD_TOKEN = '*';
/** @var string */
const PART_DELIMITER = '.';
/** @var string */
const SUBPART_DELIMITER = ',';
/** @var string */
protected $permission;
/** @var Collection */
protected $parts;
/**
* @param string $permission
*/
public function __construct(string $permission)
{
$this->permission = $permission;
$this->parts = collect();
$this->setParts();
}
/**
* @param string|WildcardPermission $permission
*
* @return bool
*/
public function implies($permission): bool
{
if (is_string($permission)) {
$permission = new self($permission);
}
$otherParts = $permission->getParts();
$i = 0;
foreach ($otherParts as $otherPart) {
if ($this->getParts()->count() - 1 < $i) {
return true;
}
if (! $this->parts->get($i)->contains(self::WILDCARD_TOKEN)
&& ! $this->containsAll($this->parts->get($i), $otherPart)) {
return false;
}
$i++;
}
for ($i; $i < $this->parts->count(); $i++) {
if (! $this->parts->get($i)->contains(self::WILDCARD_TOKEN)) {
return false;
}
}
return true;
}
/**
* @param Collection $part
* @param Collection $otherPart
*
* @return bool
*/
protected function containsAll(Collection $part, Collection $otherPart): bool
{
foreach ($otherPart->toArray() as $item) {
if (! $part->contains($item)) {
return false;
}
}
return true;
}
/**
* @return Collection
*/
public function getParts(): Collection
{
return $this->parts;
}
/**
* Sets the different parts and subparts from permission string.
*
* @return void
*/
protected function setParts(): void
{
if (empty($this->permission) || $this->permission == null) {
throw WildcardPermissionNotProperlyFormatted::create($this->permission);
}
$parts = collect(explode(self::PART_DELIMITER, $this->permission));
$parts->each(function ($item, $key) {
$subParts = collect(explode(self::SUBPART_DELIMITER, $item));
if ($subParts->isEmpty() || $subParts->contains('')) {
throw WildcardPermissionNotProperlyFormatted::create($this->permission);
}
$this->parts->add($subParts);
});
if ($this->parts->isEmpty()) {
throw WildcardPermissionNotProperlyFormatted::create($this->permission);
}
}
}
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