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<?php
/**
* SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: MIT
*/
use Psalm\CodeLocation;
use Psalm\Plugin\EventHandler\AfterFunctionLikeAnalysisInterface;
use Psalm\Plugin\EventHandler\Event\AfterFunctionLikeAnalysisEvent;
use Psalm\Type\TaintKindGroup;
class AppFrameworkTainter implements AfterFunctionLikeAnalysisInterface {
public static function afterStatementAnalysis(AfterFunctionLikeAnalysisEvent $event): ?bool {
if ($event->getStatementsSource()->getFQCLN() === null) {
return null;
}
if (!$event->getCodebase()->classExtendsOrImplements($event->getStatementsSource()->getFQCLN(), \OCP\AppFramework\Controller::class)) {
return null;
}
if (!($event->getStmt() instanceof PhpParser\Node\Stmt\ClassMethod)) {
return null;
}
if (!$event->getStmt()->isPublic() || $event->getStmt()->isMagic()) {
return null;
}
foreach ($event->getStmt()->params as $i => $param) {
$expr_type = new Psalm\Type\Union([new Psalm\Type\Atomic\TString()]);
$expr_identifier = (strtolower($event->getStatementsSource()->getFQCLN()) . '::' . strtolower($event->getFunctionlikeStorage()->cased_name) . '#' . ($i + 1));
$event->getCodebase()->addTaintSource(
$expr_type,
$expr_identifier,
TaintKindGroup::ALL_INPUT,
new CodeLocation($event->getStatementsSource(), $param)
);
}
return null;
}
}
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