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<?php
/**
* Copyright (c) 2020 Lukas Reschke <lukas@statuscode.ch>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
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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