Kernel - Code Metrics - Inspection of "Merge branch 'develop'" - ByTIC/framework - Measure and Improve Code Quality continuously with Scrutinizer

Test Setup Failed

Push — master ( c5ade0...e039e4 )

by Gabriel

created 2017-07-29 13:11 UTC

Kernel A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	178
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	7

Importance

Changes

Metric	Value
dl	0
loc	178
rs	10
c	0
b	0
f	0
wmc	12
lcom	1
cbo	7

9 Methods

Rating	Name	Size	Complexity
A	__construct()	9	1
A	handle()	15	3
A	getApplication()	4	1
A	handleRaw()	6	1
A	reportException()	4	1
A	renderException()	22	2
A	terminate()	5	1
A	postRouting()	3	1
A	handleException()	6	1

<?php

namespace Nip\Http\Kernel;

use Exception;
use Nip\Application;
use Nip\Application\ApplicationInterface;
use Nip\Dispatcher\ActionDispatcherMiddleware;
use Nip\Http\Response\Response;
use Nip\Http\Response\ResponseFactory;
use Nip\Http\ServerMiddleware\Dispatcher;
use Nip\Http\ServerMiddleware\Traits\HasServerMiddleware;
use Nip\Request;
use Nip\Router\Middleware\RouteResolverMiddleware;
use Nip\Router\Router;
use Nip\Session\Middleware\StartSession;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Symfony\Component\Debug\Exception\FatalThrowableError;
use Symfony\Component\HttpFoundation\Request as SymfonyRequest;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Throwable;
use Whoops\Handler\PrettyPageHandler;
use Whoops\Run as WhoopsRun;

/**
 * Class Kernel
 * @package Nip\Http\Kernel
 */
class Kernel implements KernelInterface
{
    use HasServerMiddleware;

    /**
     * The application implementation.
     *
     * @var Application
     */
    protected $app;

    /**
     * The router instance.
     *
     * @var Router
     */
    protected $router;

    /**
     * The application's route middleware groups.
     *
     * @var array
     */
    protected $middlewareGroups = [];

    /**
     * The application's route middleware.
     *
     * @var array
     */
    protected $routeMiddleware = [];

    /**
     * Create a new HTTP kernel instance.
     *
     * @param  ApplicationInterface $app
     * @param  Router $router
     */
    public function __construct(ApplicationInterface $app, Router $router)
    {
        $this->app = $app;
class Alien {}

class Dalek extends Alien {}

class Plot
{
    /** @var  Dalek */
    public $villain;
}

$alien = new Alien();
$plot = new Plot();
if ($alien instanceof Dalek) {
    $plot->villain = $alien;
}
        $this->router = $router;

        $this->pushMiddleware(StartSession::class);
        $this->pushMiddleware(RouteResolverMiddleware::class);
        $this->pushMiddleware(ActionDispatcherMiddleware::class);
    }

    /**
     * Handle an incoming HTTP request.
     *
     * @param SymfonyRequest|ServerRequestInterface $request
     * @param int $type
     * @param bool $catch
     * @return ResponseInterface
     */
    public function handle(SymfonyRequest $request, $type = self::MASTER_REQUEST, $catch = true)
    {
        try {
            $this->getApplication()->share('request', $request);
            return $this->handleRaw($request, $type);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        } catch (Exception $e) {
            $this->reportException($e);
            $response = $this->renderException($request, $e);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        } catch (Throwable $e) {
            $this->reportException($e = new FatalThrowableError($e));
            $response = $this->renderException($request, $e);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        }
//        event(new Events\RequestHandled($request, $response));

        return $response;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
    }

    /**
     * Get the application instance.
     *
     * @return Application
     */
    public function getApplication()
    {
        return $this->app;
    }

    /**
     * Handles a request to convert it to a response.
     *
     * @param SymfonyRequest|ServerRequestInterface $request A Request instance
     * @param int $type The type of the request
     *
     * @return ResponseInterface A Response instance
     *
     * @throws \LogicException       If one of the listener does not behave as expected
     * @throws NotFoundHttpException When controller cannot be found
     */
    protected function handleRaw(ServerRequestInterface $request, $type = self::MASTER_REQUEST)

    {
        return (
        new Dispatcher($this->middleware, $this->getApplication()->getContainer())
        )->dispatch($request);
    }

    /**
     * Report the exception to the exception handler.
     *
     * @param  Exception $e
     * @return void
     */
    protected function reportException(Exception $e)
    {
        app('log')->error($e);
    }

    /**
     * @param Request|ServerRequestInterface $request
     * @param Exception $e
     * @return Response|ResponseInterface
     */
    protected function renderException($request, Exception $e)
    {
        if (config('app.debug') === false) {
            $request->setControllerName('error')->setActionName('index');
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

            return (
            new Dispatcher(
                [
                    \Nip\Dispatcher\ActionDispatcherMiddleware::class
                ],
                $this->getApplication()->getContainer()
            )
            )->dispatch($request);
        } else {
            $whoops = new WhoopsRun;
            $whoops->allowQuit(false);
            $whoops->writeToOutput(false);
            $whoops->pushHandler(new PrettyPageHandler());
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);

            return ResponseFactory::make($whoops->handleException($e));

        }
    }

    /**
     * @param Request $request
     * @param Response $response
     */
    public function terminate(Request $request, Response $response)
    {
        $this->terminateMiddleware($request, $response);
        $this->getApplication()->terminate();
    }

//    /**

//     * @param Request $request
//     * @return bool
//     */
//    protected function isValidRequest($request)
//    {
//        if ($request->isMalicious()) {
//            return false;
//        }
//
//        return true;
//    }

    public function postRouting()
    {
    }

    /**
     * @param Exception $e
     * @param Request|ServerRequestInterface $request
     * @return Response
     */
    protected function handleException($request, Exception $e)
    {
        $this->reportException($e);

        return $this->renderException($request, $e);
    }
}


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Push — master ( c5ade0...e039e4 )

Kernel A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

9 Methods

Available Fixes

1			<?php
2
3			namespace Nip\Http\Kernel;
4
5			use Exception;
6			use Nip\Application;
7			use Nip\Application\ApplicationInterface;
8			use Nip\Dispatcher\ActionDispatcherMiddleware;
9			use Nip\Http\Response\Response;
10			use Nip\Http\Response\ResponseFactory;
11			use Nip\Http\ServerMiddleware\Dispatcher;
12			use Nip\Http\ServerMiddleware\Traits\HasServerMiddleware;
13			use Nip\Request;
14			use Nip\Router\Middleware\RouteResolverMiddleware;
15			use Nip\Router\Router;
16			use Nip\Session\Middleware\StartSession;
17			use Psr\Http\Message\ResponseInterface;
18			use Psr\Http\Message\ServerRequestInterface;
19			use Symfony\Component\Debug\Exception\FatalThrowableError;
20			use Symfony\Component\HttpFoundation\Request as SymfonyRequest;
21			use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
22			use Throwable;
23			use Whoops\Handler\PrettyPageHandler;
24			use Whoops\Run as WhoopsRun;
25
26			/**
27			* Class Kernel
28			* @package Nip\Http\Kernel
29			*/
30			class Kernel implements KernelInterface
31			{
32			use HasServerMiddleware;
33
34			/**
35			* The application implementation.
36			*
37			* @var Application
38			*/
39			protected $app;
40
41			/**
42			* The router instance.
43			*
44			* @var Router
45			*/
46			protected $router;
47
48			/**
49			* The application's route middleware groups.
50			*
51			* @var array
52			*/
53			protected $middlewareGroups = [];
54
55			/**
56			* The application's route middleware.
57			*
58			* @var array
59			*/
60			protected $routeMiddleware = [];
61
62			/**
63			* Create a new HTTP kernel instance.
64			*
65			* @param ApplicationInterface $app
66			* @param Router $router
67			*/
68			public function __construct(ApplicationInterface $app, Router $router)
69			{
70			$this->app = $app;
			0 ignored issues – show Documentation Bug introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report `$app` is of type `object<Nip\Application\ApplicationInterface>`, but the property `$app` was declared to be of type `object<Nip\Application>`. Are you sure that you always receive this specific sub-class here, or does it make sense to add an `instanceof` check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a given class or a super-class is assigned to a property that is type hinted more strictly. Either this assignment is in error or an instanceof check should be added for that assignment. class Alien {} class Dalek extends Alien {} class Plot { /** @var Dalek */ public $villain; } $alien = new Alien(); $plot = new Plot(); if ($alien instanceof Dalek) { $plot->villain = $alien; } Loading history...
71			$this->router = $router;
72
73			$this->pushMiddleware(StartSession::class);
74			$this->pushMiddleware(RouteResolverMiddleware::class);
75			$this->pushMiddleware(ActionDispatcherMiddleware::class);
76			}
77
78			/**
79			* Handle an incoming HTTP request.
80			*
81			* @param SymfonyRequest\|ServerRequestInterface $request
82			* @param int $type
83			* @param bool $catch
84			* @return ResponseInterface
85			*/
86			public function handle(SymfonyRequest $request, $type = self::MASTER_REQUEST, $catch = true)
87			{
88			try {
89			$this->getApplication()->share('request', $request);
90			return $this->handleRaw($request, $type);
			0 ignored issues – show Documentation introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report `$request` is of type `object<Symfony\Component\HttpFoundation\Request>`, but the function expects a `object<Psr\Http\Message\ServerRequestInterface>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history... Bug Best Practice introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report The return type of `return $this->handleRaw($request, $type);` (`Psr\Http\Message\ResponseInterface`) is incompatible with the return type declared by the interface `Symfony\Component\HttpKe...KernelInterface::handle` of type `Symfony\Component\HttpFoundation\Response`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
91			} catch (Exception $e) {
92			$this->reportException($e);
93			$response = $this->renderException($request, $e);
			0 ignored issues – show Documentation introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report `$request` is of type `object<Symfony\Component\HttpFoundation\Request>`, but the function expects a `object<Psr\Http\Message\ServerRequestInterface>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
94			} catch (Throwable $e) {
95			$this->reportException($e = new FatalThrowableError($e));
96			$response = $this->renderException($request, $e);
			0 ignored issues – show Documentation introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report `$request` is of type `object<Symfony\Component\HttpFoundation\Request>`, but the function expects a `object<Psr\Http\Message\ServerRequestInterface>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
97			}
98			// event(new Events\RequestHandled($request, $response));
			0 ignored issues – show Unused Code Comprehensibility introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report `65%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
99			return $response;
			0 ignored issues – show Bug Best Practice introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report The return type of `return $response;` (`Psr\Http\Message\ResponseInterface`) is incompatible with the return type declared by the interface `Symfony\Component\HttpKe...KernelInterface::handle` of type `Symfony\Component\HttpFoundation\Response`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
100			}
101
102			/**
103			* Get the application instance.
104			*
105			* @return Application
106			*/
107			public function getApplication()
108			{
109			return $this->app;
110			}
111
112			/**
113			* Handles a request to convert it to a response.
114			*
115			* @param SymfonyRequest\|ServerRequestInterface $request A Request instance
116			* @param int $type The type of the request
117			*
118			* @return ResponseInterface A Response instance
119			*
120			* @throws \LogicException If one of the listener does not behave as expected
121			* @throws NotFoundHttpException When controller cannot be found
122			*/
123			protected function handleRaw(ServerRequestInterface $request, $type = self::MASTER_REQUEST)
			0 ignored issues – show Unused Code introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report The parameter `$type` 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...
124			{
125			return (
126			new Dispatcher($this->middleware, $this->getApplication()->getContainer())
127			)->dispatch($request);
128			}
129
130			/**
131			* Report the exception to the exception handler.
132			*
133			* @param Exception $e
134			* @return void
135			*/
136			protected function reportException(Exception $e)
137			{
138			app('log')->error($e);
139			}
140
141			/**
142			* @param Request\|ServerRequestInterface $request
143			* @param Exception $e
144			* @return Response\|ResponseInterface
145			*/
146			protected function renderException($request, Exception $e)
147			{
148			if (config('app.debug') === false) {
149			$request->setControllerName('error')->setActionName('index');
			0 ignored issues – show Bug introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Psr\Http\Message\ServerRequestInterface` as the method `setControllerName()` does only exist in the following implementations of said interface: `Nip\Request`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
150
151			return (
152			new Dispatcher(
153			[
154			\Nip\Dispatcher\ActionDispatcherMiddleware::class
155			],
156			$this->getApplication()->getContainer()
157			)
158			)->dispatch($request);
159			} else {
160			$whoops = new WhoopsRun;
161			$whoops->allowQuit(false);
162			$whoops->writeToOutput(false);
163			$whoops->pushHandler(new PrettyPageHandler());
			0 ignored issues – show Documentation introduced 2017-03-05 14:00 UTC by Report Bug Copy Issue Report `new \Whoops\Handler\PrettyPageHandler()` is of type `object<Whoops\Handler\PrettyPageHandler>`, but the function expects a `callable`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
164
165			return ResponseFactory::make($whoops->handleException($e));
			0 ignored issues – show Security Bug introduced 2017-03-05 14:00 UTC by Report Bug Copy Issue Report It seems like `$whoops->handleException($e)` targeting `Whoops\Run::handleException()` can also be of type `false`; however, `Nip\Http\Response\ResponseFactory::make()` does only seem to accept `string`, did you maybe forget to handle an error condition? Loading history...
166			}
167			}
168
169			/**
170			* @param Request $request
171			* @param Response $response
172			*/
173			public function terminate(Request $request, Response $response)
174			{
175			$this->terminateMiddleware($request, $response);
176			$this->getApplication()->terminate();
177			}
178
179			// /**
			0 ignored issues – show Unused Code Comprehensibility introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report `37%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
180			// * @param Request $request
181			// * @return bool
182			// */
183			// protected function isValidRequest($request)
184			// {
185			// if ($request->isMalicious()) {
186			// return false;
187			// }
188			//
189			// return true;
190			// }
191
192			public function postRouting()
193			{
194			}
195
196			/**
197			* @param Exception $e
198			* @param Request\|ServerRequestInterface $request
199			* @return Response
200			*/
201			protected function handleException($request, Exception $e)
202			{
203			$this->reportException($e);
204
205			return $this->renderException($request, $e);
206			}
207			}
208

ByTIC / framework

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Kernel A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

9 Methods

Available Fixes

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