SecurityMacros.php

<?php declare(strict_types = 1);

namespace App\Core\Latte;

use App\ImplementationException;
use Latte\Compiler;
use Latte\MacroNode;
use Latte\Macros\MacroSet;
use Latte\PhpWriter;

class SecurityMacros extends MacroSet
{

	public static function install(Compiler $compiler)
	{
		$macros = new self($compiler);
		$macros->addMacro('ifAllowed', [$macros, 'ifAllowed'], '}');
	}


	public function ifAllowed(MacroNode $node, PhpWriter $writer)
	{
		$scope = $node->tokenizer->fetchWord();
		$resource = $node->tokenizer->fetchWord();
		$action = $node->tokenizer->fetchWord();
		if ($node->tokenizer->fetchWord() !== FALSE) {
			throw new ImplementationException("Macro ifAllowed accepts only 2 or 3 arguments.");
		}
		if ($action === FALSE) {
			$action = $resource;
			$resource = $scope;
			$scope = FALSE;
		}
		$resource = 'App\\Model\\' . $resource;

		return 'if ($this->global->uiPresenter->isAllowed('
		. ($scope ? $writer->formatWord($scope) : 'new App\Model\GlobalScope()') . ', ['
		. $writer->formatWord($resource) . ', '
		. $writer->formatWord($action)
		. '])) {';
	}
}