mirror of
https://github.com/danog/psalm.git
synced 2024-11-30 04:39:00 +01:00
1702 lines
51 KiB
PHP
1702 lines
51 KiB
PHP
<?php
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namespace Psalm\Tests;
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use Psalm\Config;
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use Psalm\Context;
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class TaintTest extends TestCase
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{
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/**
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* @return void
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*/
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public function testTaintedInputFromMethodReturnTypeSimple()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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class A {
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public function getUserId() : string {
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return (string) $_GET["user_id"];
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}
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public function getAppendedUserId() : string {
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return "aaaa" . $this->getUserId();
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}
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public function deleteUser(PDO $pdo) : void {
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$userId = $this->getAppendedUserId();
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$pdo->exec("delete from users where user_id = " . $userId);
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}
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}'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputFromFunctionReturnType()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput - somefile.php:6:22 - Detected tainted html in path: $_GET -> $_GET[\'name\'] (somefile.php:3:28) -> getname (somefile.php:6:22) -> call to echo (somefile.php:6:22) -> echo#1');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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function getName() : string {
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return $_GET["name"] ?? "unknown";
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}
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echo getName();'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputFromExplicitTaintSource()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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/**
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* @psalm-taint-source input
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*/
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function getName() : string {
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return "";
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}
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echo getName();'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputFromExplicitTaintSourceStaticMethod()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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class Request {
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/**
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* @psalm-taint-source input
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*/
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public static function getName() : string {
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return "";
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}
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}
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echo Request::getName();'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputFromGetArray()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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function getName(array $data) : string {
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return $data["name"] ?? "unknown";
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}
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$name = getName($_GET);
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echo $name;'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputFromReturnToInclude()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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$a = (string) $_GET["file"];
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$b = "hello" . $a;
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include str_replace("a", "b", $b);'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputFromReturnToEval()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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$a = $_GET["file"];
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eval("<?php" . $a);'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputFromReturnTypeToEcho()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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class A {
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public function getUserId() : string {
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return (string) $_GET["user_id"];
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}
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public function getAppendedUserId() : string {
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return "aaaa" . $this->getUserId();
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}
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public function deleteUser(PDO $pdo) : void {
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$userId = $this->getAppendedUserId();
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echo $userId;
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}
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}'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputInCreatedArrayNotEchoed()
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{
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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$name = $_GET["name"] ?? "unknown";
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$id = (int) $_GET["id"];
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$data = ["name" => $name, "id" => $id];
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echo "<h1>" . htmlentities($data["name"]) . "</h1>";
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echo "<p>" . $data["id"] . "</p>";'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputInCreatedArrayIsEchoed()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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$name = $_GET["name"] ?? "unknown";
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$data = ["name" => $name];
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echo "<h1>" . $data["name"] . "</h1>";'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputInAssignedArrayNotEchoed()
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{
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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$name = $_GET["name"] ?? "unknown";
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$id = (int) $_GET["id"];
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$data = [];
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$data["name"] = $name;
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$data["id"] = $id;
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echo "<h1>" . htmlentities($data["name"]) . "</h1>";
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echo "<p>" . $data["id"] . "</p>";'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputInAssignedArrayIsEchoed()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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$name = $_GET["name"] ?? "unknown";
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$data = [];
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$data["name"] = $name;
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echo "<h1>" . $data["name"] . "</h1>";'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputDirectly()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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class A {
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public function deleteUser(PDO $pdo) : void {
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$userId = (string) $_GET["user_id"];
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$pdo->exec("delete from users where user_id = " . $userId);
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}
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}'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputDirectlySuppressed()
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{
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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class A {
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public function deleteUser(PDO $pdo) : void {
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/** @psalm-taint-escape sql */
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$userId = (string) $_GET["user_id"];
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$pdo->exec("delete from users where user_id = " . $userId);
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}
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}'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputDirectlySuppressedWithOtherUse()
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{
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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class A {
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public function deleteUser(PDOWrapper $pdo) : void {
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/**
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* @psalm-taint-escape sql
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*/
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$userId = (string) $_GET["user_id"];
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$pdo->exec("delete from users where user_id = " . $userId);
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}
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public function deleteUserSafer(PDOWrapper $pdo) : void {
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$userId = $this->getSafeId();
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$pdo->exec("delete from users where user_id = " . $userId);
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}
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public function getSafeId() : string {
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return "5";
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}
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}
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class PDOWrapper {
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/**
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* @psalm-taint-sink sql $sql
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*/
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public function exec(string $sql) : void {}
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}'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputFromReturnTypeWithBranch()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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class A {
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public function getUserId() : string {
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return (string) $_GET["user_id"];
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}
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public function getAppendedUserId() : string {
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$userId = $this->getUserId();
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if (rand(0, 1)) {
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$userId .= "aaa";
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} else {
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$userId .= "bb";
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}
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return $userId;
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}
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public function deleteUser(PDO $pdo) : void {
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$userId = $this->getAppendedUserId();
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$pdo->exec("delete from users where user_id = " . $userId);
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}
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}'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testSinkAnnotation()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput');
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$this->project_analyzer->trackTaintedInputs();
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$this->addFile(
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'somefile.php',
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'<?php
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class A {
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public function getUserId() : string {
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return (string) $_GET["user_id"];
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}
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public function getAppendedUserId() : string {
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return "aaaa" . $this->getUserId();
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}
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public function deleteUser(PDOWrapper $pdo) : void {
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$userId = $this->getAppendedUserId();
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$pdo->exec("delete from users where user_id = " . $userId);
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}
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}
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class PDOWrapper {
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/**
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* @psalm-taint-sink sql $sql
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*/
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public function exec(string $sql) : void {}
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}'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
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/**
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* @return void
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*/
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public function testTaintedInputFromParam()
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{
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$this->expectException(\Psalm\Exception\CodeException::class);
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$this->expectExceptionMessage('TaintedInput - somefile.php:17:36 - Detected tainted sql in path: $_GET -> $_GET[\'user_id\'] (somefile.php:4:41) -> A::getUserId (somefile.php:3:51) -> concat (somefile.php:8:32) -> A::getAppendedUserId (somefile.php:7:59) -> $userId (somefile.php:12:25) -> call to A::deleteUser (somefile.php:13:49) -> A::deleteUser#2 (somefile.php:16:65) -> concat (somefile.php:17:36) -> call to PDO::exec (somefile.php:17:36) -> PDO::exec#1');
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$this->project_analyzer->trackTaintedInputs();
|
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|
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$this->addFile(
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'somefile.php',
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'<?php
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class A {
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public function getUserId() : string {
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return (string) $_GET["user_id"];
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}
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public function getAppendedUserId() : string {
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return "aaaa" . $this->getUserId();
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}
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public function doDelete(PDO $pdo) : void {
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$userId = $this->getAppendedUserId();
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$this->deleteUser($pdo, $userId);
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}
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public function deleteUser(PDO $pdo, string $userId) : void {
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$pdo->exec("delete from users where user_id = " . $userId);
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}
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}'
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);
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$this->analyzeFile('somefile.php', new Context());
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}
|
|
|
|
/**
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* @return void
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*/
|
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public function testTaintedInputToParam()
|
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{
|
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$this->expectException(\Psalm\Exception\CodeException::class);
|
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$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
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'somefile.php',
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'<?php
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class A {
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public function getUserId(PDO $pdo) : void {
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$this->deleteUser(
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$pdo,
|
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$this->getAppendedUserId((string) $_GET["user_id"])
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);
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}
|
|
|
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public function getAppendedUserId(string $user_id) : string {
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return "aaa" . $user_id;
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}
|
|
|
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public function deleteUser(PDO $pdo, string $userId) : void {
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$pdo->exec("delete from users where user_id = " . $userId);
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}
|
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}'
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);
|
|
|
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$this->analyzeFile('somefile.php', new Context());
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}
|
|
|
|
/**
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|
* @return void
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*/
|
|
public function testTaintedInputToParamAfterAssignment()
|
|
{
|
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$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
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'somefile.php',
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'<?php
|
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class A {
|
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public function getUserId(PDO $pdo) : void {
|
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$this->deleteUser(
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$pdo,
|
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$this->getAppendedUserId((string) $_GET["user_id"])
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);
|
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}
|
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|
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public function getAppendedUserId(string $user_id) : string {
|
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return "aaa" . $user_id;
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}
|
|
|
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public function deleteUser(PDO $pdo, string $userId) : void {
|
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$userId2 = $userId;
|
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$pdo->exec("delete from users where user_id = " . $userId2);
|
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}
|
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}'
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);
|
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|
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$this->analyzeFile('somefile.php', new Context());
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}
|
|
|
|
/**
|
|
* @return void
|
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*/
|
|
public function testTaintedInputToParamButSafe()
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
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'somefile.php',
|
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'<?php
|
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class A {
|
|
public function getUserId(PDO $pdo) : void {
|
|
$this->deleteUser(
|
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$pdo,
|
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$this->getAppendedUserId((string) $_GET["user_id"])
|
|
);
|
|
}
|
|
|
|
public function getAppendedUserId(string $user_id) : string {
|
|
return "aaa" . $user_id;
|
|
}
|
|
|
|
public function deleteUser(PDO $pdo, string $userId) : void {
|
|
$userId2 = strlen($userId);
|
|
$pdo->exec("delete from users where user_id = " . $userId2);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTaintedInputToParamAlternatePath()
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput - somefile.php:23:40 - Detected tainted sql in path: $_GET -> $_GET[\'user_id\'] (somefile.php:7:63) -> call to A::getAppendedUserId (somefile.php:7:54) -> A::getAppendedUserId#1 (somefile.php:11:62) -> concat (somefile.php:12:32) -> A::getAppendedUserId (somefile.php:11:37) -> call to A::deleteUser (somefile.php:7:29) -> A::deleteUser#3 (somefile.php:19:81) -> concat (somefile.php:23:40) -> call to PDO::exec (somefile.php:23:40) -> PDO::exec#1');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class A {
|
|
public function getUserId(PDO $pdo) : void {
|
|
$this->deleteUser(
|
|
$pdo,
|
|
self::doFoo(),
|
|
$this->getAppendedUserId((string) $_GET["user_id"])
|
|
);
|
|
}
|
|
|
|
public function getAppendedUserId(string $user_id) : string {
|
|
return "aaa" . $user_id;
|
|
}
|
|
|
|
public static function doFoo() : string {
|
|
return "hello";
|
|
}
|
|
|
|
public function deleteUser(PDO $pdo, string $userId, string $userId2) : void {
|
|
$pdo->exec("delete from users where user_id = " . $userId);
|
|
|
|
if (rand(0, 1)) {
|
|
$pdo->exec("delete from users where user_id = " . $userId2);
|
|
}
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTaintedInParentLoader()
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput - somefile.php:16:40 - Detected tainted sql in path: $_GET -> $_GET[\'user_id\'] (somefile.php:28:39) -> call to C::foo (somefile.php:28:30) -> C::foo#1 (somefile.php:23:48) -> call to AGrandChild::loadFull (somefile.php:24:47) -> AGrandChild::loadFull#1 (somefile.php:5:60) -> A::loadFull#1 (somefile.php:24:47) -> call to A::loadPartial (somefile.php:6:45) -> A::loadPartial#1 (somefile.php:3:72) -> AChild::loadPartial#1 (somefile.php:6:45) -> concat (somefile.php:16:40) -> call to PDO::exec (somefile.php:16:40) -> PDO::exec#1');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
abstract class A {
|
|
abstract public static function loadPartial(string $sink) : void;
|
|
|
|
public static function loadFull(string $sink) : void {
|
|
static::loadPartial($sink);
|
|
}
|
|
}
|
|
|
|
function getPdo() : PDO {
|
|
return new PDO("connectionstring");
|
|
}
|
|
|
|
class AChild extends A {
|
|
public static function loadPartial(string $sink) : void {
|
|
getPdo()->exec("select * from foo where bar = " . $sink);
|
|
}
|
|
}
|
|
|
|
class AGrandChild extends AChild {}
|
|
|
|
class C {
|
|
public function foo(string $user_id) : void {
|
|
AGrandChild::loadFull($user_id);
|
|
}
|
|
}
|
|
|
|
(new C)->foo((string) $_GET["user_id"]);'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testValidatedInputFromParam()
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
/**
|
|
* @psalm-assert-untainted $userId
|
|
*/
|
|
function validateUserId(string $userId) : void {
|
|
if (!is_numeric($userId)) {
|
|
throw new \Exception("bad");
|
|
}
|
|
}
|
|
|
|
class A {
|
|
public function getUserId() : string {
|
|
return (string) $_GET["user_id"];
|
|
}
|
|
|
|
public function doDelete(PDO $pdo) : void {
|
|
$userId = $this->getUserId();
|
|
validateUserId($userId);
|
|
$this->deleteUser($pdo, $userId);
|
|
}
|
|
|
|
public function deleteUser(PDO $pdo, string $userId) : void {
|
|
$pdo->exec("delete from users where user_id = " . $userId);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testUntaintedInput()
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class A {
|
|
public function getUserId() : int {
|
|
return (int) $_GET["user_id"];
|
|
}
|
|
|
|
public function getAppendedUserId() : string {
|
|
return "aaaa" . $this->getUserId();
|
|
}
|
|
|
|
public function deleteUser(PDO $pdo) : void {
|
|
$userId = $this->getAppendedUserId();
|
|
$pdo->exec("delete from users where user_id = " . $userId);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTaintedInputFromProperty()
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class A {
|
|
public string $userId;
|
|
|
|
public function __construct() {
|
|
$this->userId = (string) $_GET["user_id"];
|
|
}
|
|
|
|
public function getAppendedUserId() : string {
|
|
return "aaaa" . $this->userId;
|
|
}
|
|
|
|
public function doDelete(PDO $pdo) : void {
|
|
$userId = $this->getAppendedUserId();
|
|
$this->deleteUser($pdo, $userId);
|
|
}
|
|
|
|
public function deleteUser(PDO $pdo, string $userId) : void {
|
|
$pdo->exec("delete from users where user_id = " . $userId);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testSpecializedCoreFunctionCall()
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
$a = (string) $_GET["user_id"];
|
|
|
|
echo print_r([], true);
|
|
|
|
$b = print_r($a, true);'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTaintedInputFromPropertyViaMixin()
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class A {
|
|
public string $userId;
|
|
|
|
public function __construct() {
|
|
$this->userId = (string) $_GET["user_id"];
|
|
}
|
|
}
|
|
|
|
/** @mixin A */
|
|
class B {
|
|
private A $a;
|
|
|
|
public function __construct(A $a) {
|
|
$this->a = $a;
|
|
}
|
|
|
|
public function __get(string $name) {
|
|
return $this->a->$name;
|
|
}
|
|
}
|
|
|
|
class C {
|
|
private B $b;
|
|
|
|
public function __construct(B $b) {
|
|
$this->b = $b;
|
|
}
|
|
|
|
public function getAppendedUserId() : string {
|
|
return "aaaa" . $this->b->userId;
|
|
}
|
|
|
|
public function doDelete(PDO $pdo) : void {
|
|
$userId = $this->getAppendedUserId();
|
|
$this->deleteUser($pdo, $userId);
|
|
}
|
|
|
|
public function deleteUser(PDO $pdo, string $userId) : void {
|
|
$pdo->exec("delete from users where user_id = " . $userId);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTaintedInputViaStaticFunction()
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class Utils {
|
|
public static function shorten(string $str) : string {
|
|
return $str;
|
|
}
|
|
}
|
|
|
|
class A {
|
|
public function foo() : void {
|
|
echo(Utils::shorten((string) $_GET["user_id"]));
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTaintedInputViaPureStaticFunction()
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class Utils {
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
public static function shorten(string $str) : string {
|
|
return substr($str, 0, 100);
|
|
}
|
|
}
|
|
|
|
class A {
|
|
public function foo() : void {
|
|
echo(Utils::shorten((string) $_GET["user_id"]));
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testUntaintedInputViaStaticFunctionWithSafePath()
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class Utils {
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
public static function shorten(string $str) : string {
|
|
return $str;
|
|
}
|
|
}
|
|
|
|
class A {
|
|
public function foo() : void {
|
|
echo(htmlentities(Utils::shorten((string) $_GET["user_id"])));
|
|
}
|
|
|
|
public function bar() : void {
|
|
echo(Utils::shorten("hello"));
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testUntaintedInputViaStaticFunctionWithoutSafePath()
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class Utils {
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
public static function shorten(string $str) : string {
|
|
return $str;
|
|
}
|
|
}
|
|
|
|
class A {
|
|
public function foo() : void {
|
|
echo(Utils::shorten((string) $_GET["user_id"]));
|
|
}
|
|
|
|
public function bar() : void {
|
|
echo(Utils::shorten("hello"));
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintedInputFromMagicProperty() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
/**
|
|
* @property string $userId
|
|
*/
|
|
class A {
|
|
/** @var array<string, string> */
|
|
private $vars = [];
|
|
|
|
public function __get(string $s) : string {
|
|
return $this->vars[$s];
|
|
}
|
|
|
|
public function __set(string $s, string $t) {
|
|
$this->vars[$s] = $t;
|
|
}
|
|
}
|
|
|
|
function getAppendedUserId() : void {
|
|
$a = new A();
|
|
$a->userId = (string) $_GET["user_id"];
|
|
echo $a->userId;
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintOverMixed() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
/**
|
|
* @psalm-suppress MixedAssignment
|
|
* @psalm-suppress MixedArgument
|
|
*/
|
|
function foo() : void {
|
|
$a = $_GET["bad"];
|
|
echo $a;
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintStrConversion() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
function foo() : void {
|
|
$a = strtoupper(strtolower((string) $_GET["bad"]));
|
|
echo $a;
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintHtmlEntities() : void
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
function foo() : void {
|
|
$a = htmlentities((string) $_GET["bad"]);
|
|
echo $a;
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintIntoExec() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
function foo() : void {
|
|
$a = (string) $_GET["bad"];
|
|
exec($a);
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintIntoExecMultipleConcat() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
function foo() : void {
|
|
$a = "9" . "a" . "b" . "c" . ((string) $_GET["bad"]) . "d" . "e" . "f";
|
|
exec($a);
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintIntoNestedArrayUnnestedSeparately() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
function foo() : void {
|
|
$a = [[(string) $_GET["bad"]]];
|
|
exec($a[0][0]);
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintIntoArrayAndThenOutAgain() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class C {
|
|
public static function foo() : array {
|
|
$a = (string) $_GET["bad"];
|
|
return [$a];
|
|
}
|
|
|
|
public static function bar() {
|
|
exec(self::foo()[0]);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintAppendedToArray() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class C {
|
|
public static function foo() : array {
|
|
$a = [];
|
|
$a[] = (string) $_GET["bad"];
|
|
return $a;
|
|
}
|
|
|
|
public static function bar() {
|
|
exec(self::foo()[0]);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintOnSubstrCall() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class U {
|
|
/** @psalm-pure */
|
|
public static function shorten(string $s) : string {
|
|
return substr($s, 0, 15);
|
|
}
|
|
}
|
|
|
|
class V {}
|
|
|
|
class O1 {
|
|
public string $s;
|
|
|
|
public function __construct() {
|
|
$this->s = (string) $_GET["FOO"];
|
|
}
|
|
}
|
|
|
|
class V1 extends V {
|
|
public function foo(O1 $o) : void {
|
|
echo U::shorten($o->s);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintOnStrReplaceCallSimple() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class U {
|
|
/** @psalm-pure */
|
|
public static function shorten(string $s) : string {
|
|
return str_replace("foo", "bar", $s);
|
|
}
|
|
}
|
|
|
|
class V {}
|
|
|
|
class O1 {
|
|
public string $s;
|
|
|
|
public function __construct() {
|
|
$this->s = (string) $_GET["FOO"];
|
|
}
|
|
}
|
|
|
|
class V1 extends V {
|
|
public function foo(O1 $o) : void {
|
|
echo U::shorten($o->s);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintOnStrReplaceCallRemovedInFunction() : void
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class U {
|
|
/**
|
|
* @psalm-pure
|
|
* @psalm-taint-escape html
|
|
*/
|
|
public static function shorten(string $s) : string {
|
|
return str_replace("foo", "bar", $s);
|
|
}
|
|
}
|
|
|
|
class V {}
|
|
|
|
class O1 {
|
|
public string $s;
|
|
|
|
public function __construct() {
|
|
$this->s = (string) $_GET["FOO"];
|
|
}
|
|
}
|
|
|
|
class V1 extends V {
|
|
public function foo(O1 $o) : void {
|
|
echo U::shorten($o->s);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintOnPregReplaceCallRemovedInFunction() : void
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class U {
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
public static function shorten(string $s) : string {
|
|
return preg_replace("/[^_a-z\/\.A-Z0-9]/", "bar", $s);
|
|
}
|
|
}
|
|
|
|
class V {}
|
|
|
|
class O1 {
|
|
public string $s;
|
|
|
|
public function __construct() {
|
|
$this->s = (string) $_GET["FOO"];
|
|
}
|
|
}
|
|
|
|
class V1 extends V {
|
|
public function foo(O1 $o) : void {
|
|
echo U::shorten($o->s);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintOnStrReplaceCallRemovedInline() : void
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class V {}
|
|
|
|
class O1 {
|
|
public string $s;
|
|
|
|
public function __construct() {
|
|
$this->s = (string) $_GET["FOO"];
|
|
}
|
|
}
|
|
|
|
class V1 extends V {
|
|
public function foo(O1 $o) : void {
|
|
/**
|
|
* @psalm-taint-escape html
|
|
*/
|
|
$a = str_replace("foo", "bar", $o->s);
|
|
echo $a;
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintOnPregReplaceCall() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class U {
|
|
/** @psalm-pure */
|
|
public static function shorten(string $s) : string {
|
|
return preg_replace("/foo/", "bar", $s);
|
|
}
|
|
}
|
|
|
|
class V {}
|
|
|
|
class O1 {
|
|
public string $s;
|
|
|
|
public function __construct() {
|
|
$this->s = (string) $_GET["FOO"];
|
|
}
|
|
}
|
|
|
|
class V1 extends V {
|
|
public function foo(O1 $o) : void {
|
|
echo U::shorten($o->s);
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testNoTaintsOnSimilarPureCall() : void
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class U {
|
|
/** @psalm-pure */
|
|
public static function shorten(string $s) : string {
|
|
return substr($s, 0, 15);
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
public static function escape(string $s) : string {
|
|
return htmlentities($s);
|
|
}
|
|
}
|
|
|
|
class O1 {
|
|
public string $s;
|
|
|
|
public function __construct(string $s) {
|
|
$this->s = $s;
|
|
}
|
|
}
|
|
|
|
class O2 {
|
|
public string $t;
|
|
|
|
public function __construct() {
|
|
$this->t = (string) $_GET["FOO"];
|
|
}
|
|
}
|
|
|
|
class V1 {
|
|
public function foo() : void {
|
|
$o = new O1((string) $_GET["FOO"]);
|
|
echo U::escape(U::shorten($o->s));
|
|
}
|
|
}
|
|
|
|
class V2 {
|
|
public function foo(O2 $o) : void {
|
|
echo U::shorten(U::escape($o->t));
|
|
}
|
|
}'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testIndirectGetAssignment() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
class InputFilter {
|
|
public string $name;
|
|
|
|
public function __construct(string $name) {
|
|
$this->name = $name;
|
|
}
|
|
|
|
/**
|
|
* @psalm-specialize-call
|
|
*/
|
|
public function getArg(string $method, string $type)
|
|
{
|
|
$arg = null;
|
|
|
|
switch ($method) {
|
|
case "post":
|
|
if (isset($_POST[$this->name])) {
|
|
$arg = $_POST[$this->name];
|
|
}
|
|
break;
|
|
|
|
case "get":
|
|
if (isset($_GET[$this->name])) {
|
|
$arg = $_GET[$this->name];
|
|
}
|
|
break;
|
|
}
|
|
|
|
return $this->filterInput($type, $arg);
|
|
}
|
|
|
|
protected function filterInput(string $type, $arg)
|
|
{
|
|
// input is null
|
|
if ($arg === null) {
|
|
return null;
|
|
}
|
|
|
|
// set to null if sanitize clears arg
|
|
if ($arg === "") {
|
|
$arg = null;
|
|
}
|
|
|
|
// type casting
|
|
if ($arg !== null) {
|
|
$arg = $this->typeCastInput($type, $arg);
|
|
}
|
|
|
|
return $arg;
|
|
}
|
|
|
|
protected function typeCastInput(string $type, $arg) {
|
|
if ($type === "string") {
|
|
return (string) $arg;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
}
|
|
|
|
echo (new InputFilter("hello"))->getArg("get", "string");'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintPropertyPassingObject() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
/** @psalm-immutable */
|
|
class User {
|
|
public string $id;
|
|
|
|
public function __construct(string $userId) {
|
|
$this->id = $userId;
|
|
}
|
|
}
|
|
|
|
class UserUpdater {
|
|
public static function doDelete(PDO $pdo, User $user) : void {
|
|
self::deleteUser($pdo, $user->id);
|
|
}
|
|
|
|
public static function deleteUser(PDO $pdo, string $userId) : void {
|
|
$pdo->exec("delete from users where user_id = " . $userId);
|
|
}
|
|
}
|
|
|
|
$userObj = new User((string) $_GET["user_id"]);
|
|
UserUpdater::doDelete(new PDO(), $userObj);'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintPropertyPassingObjectSettingValueLater() : void
|
|
{
|
|
$this->expectException(\Psalm\Exception\CodeException::class);
|
|
$this->expectExceptionMessage('TaintedInput');
|
|
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?php
|
|
/** @psalm-taint-specialize */
|
|
class User {
|
|
public string $id;
|
|
|
|
public function __construct(string $userId) {
|
|
$this->id = $userId;
|
|
}
|
|
|
|
public function setId(string $userId) : void {
|
|
$this->id = $userId;
|
|
}
|
|
}
|
|
|
|
class UserUpdater {
|
|
public static function doDelete(PDO $pdo, User $user) : void {
|
|
self::deleteUser($pdo, $user->id);
|
|
}
|
|
|
|
public static function deleteUser(PDO $pdo, string $userId) : void {
|
|
$pdo->exec("delete from users where user_id = " . $userId);
|
|
}
|
|
}
|
|
|
|
$userObj = new User("5");
|
|
$userObj->setId((string) $_GET["user_id"]);
|
|
UserUpdater::doDelete(new PDO(), $userObj);'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintPropertyPassingObjectWithDifferentValue() : void
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?phps
|
|
/** @psalm-immutable */
|
|
class User {
|
|
public string $id;
|
|
public $name = "Luke";
|
|
|
|
public function __construct(string $userId) {
|
|
$this->id = $userId;
|
|
}
|
|
}
|
|
|
|
class UserUpdater {
|
|
public static function doDelete(PDO $pdo, User $user) : void {
|
|
self::deleteUser($pdo, $user->name);
|
|
}
|
|
|
|
public static function deleteUser(PDO $pdo, string $userId) : void {
|
|
$pdo->exec("delete from users where user_id = " . $userId);
|
|
}
|
|
}
|
|
|
|
$userObj = new User((string) $_GET["user_id"]);
|
|
UserUpdater::doDelete(new PDO(), $userObj);'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
|
|
public function testTaintPropertyWithoutPassingObject() : void
|
|
{
|
|
$this->project_analyzer->trackTaintedInputs();
|
|
|
|
$this->addFile(
|
|
'somefile.php',
|
|
'<?phps
|
|
/** @psalm-immutable */
|
|
class User {
|
|
public string $id;
|
|
|
|
public function __construct(string $userId) {
|
|
$this->id = $userId;
|
|
}
|
|
}
|
|
|
|
class UserUpdater {
|
|
public static function doDelete(PDO $pdo, User $user) : void {
|
|
self::deleteUser($pdo, $user->id);
|
|
}
|
|
|
|
public static function deleteUser(PDO $pdo, string $userId) : void {
|
|
$pdo->exec("delete from users where user_id = " . $userId);
|
|
}
|
|
}
|
|
|
|
$userObj = new User((string) $_GET["user_id"]);'
|
|
);
|
|
|
|
$this->analyzeFile('somefile.php', new Context());
|
|
}
|
|
}
|