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<?php |
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namespace Spatie\Permission; |
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use Illuminate\Support\Collection; |
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use Spatie\Permission\Exceptions\WildcardPermissionNotProperlyFormatted; |
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class WildcardPermission |
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{ |
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/** @var string */ |
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const WILDCARD_TOKEN = '*'; |
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/** @var string */ |
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const PART_DELIMITER = '.'; |
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/** @var string */ |
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const SUBPART_DELIMITER = ','; |
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/** @var string */ |
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protected $permission; |
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/** @var Collection */ |
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protected $parts; |
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/** |
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* @param string $permission |
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*/ |
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public function __construct(string $permission) |
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{ |
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$this->permission = $permission; |
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$this->parts = collect(); |
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$this->setParts(); |
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} |
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/** |
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* @param string|WildcardPermission $permission |
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* |
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* @return bool |
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*/ |
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public function implies($permission): bool |
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{ |
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if (is_string($permission)) { |
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$permission = new self($permission); |
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} |
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$otherParts = $permission->getParts(); |
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$i = 0; |
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foreach ($otherParts as $otherPart) { |
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if ($this->getParts()->count() - 1 < $i) { |
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return true; |
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} |
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if (! $this->parts->get($i)->contains(self::WILDCARD_TOKEN) |
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&& ! $this->containsAll($this->parts->get($i), $otherPart)) { |
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return false; |
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} |
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$i++; |
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} |
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for ($i; $i < $this->parts->count(); $i++) { |
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if (! $this->parts->get($i)->contains(self::WILDCARD_TOKEN)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* @param Collection $part |
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* @param Collection $otherPart |
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* |
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* @return bool |
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*/ |
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protected function containsAll(Collection $part, Collection $otherPart): bool |
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{ |
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foreach ($otherPart->toArray() as $item) { |
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if (! $part->contains($item)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* @return Collection |
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*/ |
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public function getParts(): Collection |
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{ |
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return $this->parts; |
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} |
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/** |
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* Sets the different parts and subparts from permission string. |
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* |
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* @return void |
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*/ |
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protected function setParts(): void |
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{ |
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if (empty($this->permission) || $this->permission == null) { |
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throw WildcardPermissionNotProperlyFormatted::create($this->permission); |
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} |
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$parts = collect(explode(self::PART_DELIMITER, $this->permission)); |
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$parts->each(function ($item, $key) { |
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$subParts = collect(explode(self::SUBPART_DELIMITER, $item)); |
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if ($subParts->isEmpty() || $subParts->contains('')) { |
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throw WildcardPermissionNotProperlyFormatted::create($this->permission); |
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} |
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$this->parts->add($subParts); |
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}); |
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if ($this->parts->isEmpty()) { |
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throw WildcardPermissionNotProperlyFormatted::create($this->permission); |
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} |
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} |
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} |
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spatie /
laravel-permission
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.