Issues in index.php (master) - Issues in master - integer-net/callback-proxy - Measure and Improve Code Quality continuously with Scrutinizer

Issues (4)

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Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

public/index.php (4 issues)

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<?php

use GuzzleHttp\Client;
use GuzzleHttp\HandlerStack;
use IntegerNet\CallbackProxy\Dispatcher;
use IntegerNet\CallbackProxy\DispatchStrategy;
use IntegerNet\CallbackProxy\HttpClient;
use IntegerNet\CallbackProxy\Targets;
use Monolog\Logger;
use Monolog\Handler\StreamHandler;
use Namshi\Cuzzle\Formatter\CurlFormatter;
use Namshi\Cuzzle\Middleware\CurlFormatterMiddleware;
use Psr\Http\Message\RequestInterface;
use Slim\Container;
use Slim\Http\Response;

require __DIR__ . '/../vendor/autoload.php';

$config = [
    'settings'     => include '../config.php',
    'log'          => function (Container $container) : Logger {

        $log = new Logger('proxy');
        $log->pushHandler(new StreamHandler(dirname(__DIR__) . '/proxy.log'));
        return $log;
    },
    'httpClient'   => function (Container $container) : HttpClient {
        $httpHandler = HandlerStack::create();
        $httpHandler->after('cookies', new CurlFormatterMiddleware($container->get('log')));
        return new HttpClient(
            new Client(
                [
                    'handler' => $httpHandler,
                    'verify'  => false,
                ]
            )
        );
    },
    'proxyTargets' => function (Container $container) {
        return array_map(
            function ($config) {
                return Targets::fromConfig($config);
            },
            $container->settings['proxy']['targets']
        );
    },
    'dispatchStrategy' => function (Container $container) : DispatchStrategy {
        $class = $container->settings['proxy']['strategy'] ?? DispatchStrategy\DispatchAllReturnFirstSuccess::class;
        return new $class;
    },
];
$app = new \Slim\App($config);

$app->any(
    '/{target}/{action}',
    function (RequestInterface $request, Response $response, array $args) {
        /** @var $this Container */
        $targets = $this->get('proxyTargets');

        if (!isset($targets[$args['target']])) {
            return $response->withStatus(500)->write("Target {$args['target']} does not exist.");
        }
        $this->get('log')->debug('INCOMING: ' . (new CurlFormatter)->format($request, []));
        $dispatcher = new Dispatcher(
            $this->get('httpClient'),
            $targets[$args['target']],
            $this->get('dispatchStrategy')
        );

        $response = $dispatcher->dispatch($request, $response, $args['action']);


        $body = $response->getBody();
        if ($body->isSeekable()) {
            $previousPosition = $body->tell();
            $body->rewind();
        }
        $contents = $body->getContents();
        if ($body->isSeekable()) {
            $body->seek($previousPosition);
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
        }
        $this->get('log')->debug('RESPONSE BODY:' . $contents);

        return $response->withoutHeader('Transfer-Encoding');
    }
);

$app->run();


1			<?php
2
3			use GuzzleHttp\Client;
4			use GuzzleHttp\HandlerStack;
5			use IntegerNet\CallbackProxy\Dispatcher;
6			use IntegerNet\CallbackProxy\DispatchStrategy;
7			use IntegerNet\CallbackProxy\HttpClient;
8			use IntegerNet\CallbackProxy\Targets;
9			use Monolog\Logger;
10			use Monolog\Handler\StreamHandler;
11			use Namshi\Cuzzle\Formatter\CurlFormatter;
12			use Namshi\Cuzzle\Middleware\CurlFormatterMiddleware;
13			use Psr\Http\Message\RequestInterface;
14			use Slim\Container;
15			use Slim\Http\Response;
16
17			require __DIR__ . '/../vendor/autoload.php';
18
19			$config = [
20			'settings' => include '../config.php',
21			'log' => function (Container $container) : Logger {
			0 ignored issues – show Unused Code introduced 2018-11-12 16:10 UTC by Report Bug Copy Issue Report Show Similar Issues like this The parameter `$container` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
22			$log = new Logger('proxy');
23			$log->pushHandler(new StreamHandler(dirname(__DIR__) . '/proxy.log'));
24			return $log;
25			},
26			'httpClient' => function (Container $container) : HttpClient {
27			$httpHandler = HandlerStack::create();
28			$httpHandler->after('cookies', new CurlFormatterMiddleware($container->get('log')));
29			return new HttpClient(
30			new Client(
31			[
32			'handler' => $httpHandler,
33			'verify' => false,
34			]
35			)
36			);
37			},
38			'proxyTargets' => function (Container $container) {
39			return array_map(
40			function ($config) {
41			return Targets::fromConfig($config);
42			},
43			$container->settings['proxy']['targets']
44			);
45			},
46			'dispatchStrategy' => function (Container $container) : DispatchStrategy {
47			$class = $container->settings['proxy']['strategy'] ?? DispatchStrategy\DispatchAllReturnFirstSuccess::class;
48			return new $class;
49			},
50			];
51			$app = new \Slim\App($config);
52
53			$app->any(
54			'/{target}/{action}',
55			function (RequestInterface $request, Response $response, array $args) {
56			/** @var $this Container */
57			$targets = $this->get('proxyTargets');
			0 ignored issues – show Bug introduced 2018-10-17 12:37 UTC by Report Bug Copy Issue Report Show Similar Issues like this The variable `$this` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history...
58			if (!isset($targets[$args['target']])) {
59			return $response->withStatus(500)->write("Target {$args['target']} does not exist.");
60			}
61			$this->get('log')->debug('INCOMING: ' . (new CurlFormatter)->format($request, []));
62			$dispatcher = new Dispatcher(
63			$this->get('httpClient'),
64			$targets[$args['target']],
65			$this->get('dispatchStrategy')
66			);
67
68			$response = $dispatcher->dispatch($request, $response, $args['action']);
			0 ignored issues – show Compatibility introduced 2018-11-14 16:47 UTC by Report Bug Copy Issue Report Show Similar Issues like this `$request` of type `object<Psr\Http\Message\RequestInterface>` is not a sub-type of `object<Slim\Http\Request>`. It seems like you assume a concrete implementation of the interface `Psr\Http\Message\RequestInterface` to be always present. This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass. Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type. Loading history...
69
70			$body = $response->getBody();
71			if ($body->isSeekable()) {
72			$previousPosition = $body->tell();
73			$body->rewind();
74			}
75			$contents = $body->getContents();
76			if ($body->isSeekable()) {
77			$body->seek($previousPosition);
			0 ignored issues – show Bug introduced 2018-11-12 16:10 UTC by Report Bug Copy Issue Report Show Similar Issues like this The variable `$previousPosition` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
78			}
79			$this->get('log')->debug('RESPONSE BODY:' . $contents);
80
81			return $response->withoutHeader('Transfer-Encoding');
82			}
83			);
84
85			$app->run();
86

integer-net / callback-proxy

Issues (4)

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public/index.php (4 issues)

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