CorsMiddleware - Code Metrics - eko3alpha/slim-cors-middleware - Measure and Improve Code Quality continuously with Scrutinizer

CorsMiddleware A
last analyzed 2017-04-21 13:36 UTC

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Complexity

Total Complexity

Size/Duplication

Total Lines	77
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Importance

Changes

Metric	Value
wmc	10
lcom	0
cbo	1
dl	0
loc	77
rs	10
c	0
b	0
f	0

5 Methods

Rating	Name	Size	Complexity
A	__construct()	4	1
A	__invoke()	6	2
A	getAllowedMethodsString()	8	2
A	getOriginHeader()	7	2
A	getResponse()	15	3

<?php
namespace Eko3alpha\Slim\Middleware;

use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

class CorsMiddleware
{
    protected $cors;

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

/**
 * Middleware invokable class
 *
 * @param  RequestInterface     $request  PSR7 request
 * @param  ResponseInterface    $response PSR7 response
 * @param  callable             $next     Next middleware
 *
 * @return ResponseInterface
 */
    public function __invoke(RequestInterface $request, ResponseInterface $response, callable $next)
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

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

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
    {
        $response = $next($request, $response);
        $origin = isset($_SERVER['HTTP_ORIGIN']) ? $_SERVER['HTTP_ORIGIN'] : 'none';
        return $this->getResponse($response, $origin, $this->cors);
    }

/**
* Gets allow method string
* @param  array    $cors   access list with methods
* @param  string   $origin origin domain
* @return string           comma delimited string of methods
*/
    private function getAllowedMethodsString($cors, $origin)
    {
        $methods = $cors[$origin];
        if (is_array($methods)) {
            $methods = implode(', ', $methods);
        }
        return $methods;
    }

/**
 * Gets the proper origin header value
 * @param  array    $cors   cors config
 * @param  string   $origin http_origin
 * @return string           origin value
 */
    private function getOriginHeader($cors, $origin)
    {
        if (isset($cors['*'])) {
            return '*';
        }
        return $origin;
    }

/**
 * Gets appropriate response object
 * @param  ResponseInterface    $response   PSR7 Response
 * @param  string               $origin     origin domain
 * @param  array                $cors       access list with methods
 * @return ResponseInterface                PSR7 Response
 */
    private function getResponse(ResponseInterface $response, $origin, $cors)
    {

        if (isset($cors['*'])) {
            $origin = '*';
        }

        if (!isset($cors[$origin])) {
            return $response;
        }

        return $response
        ->withHeader('Access-Control-Allow-Origin', $this->getOriginHeader($cors, $origin))
        ->withHeader('Access-Control-Allow-Methods', $this->getAllowedMethodsString($cors, $origin));
    }
}


1			<?php
2			namespace Eko3alpha\Slim\Middleware;
3
4			use Psr\Http\Message\RequestInterface;
5			use Psr\Http\Message\ResponseInterface;
6
7			class CorsMiddleware
8			{
9			protected $cors;
10
11			public function __construct($cors)
12			{
13			$this->cors = $cors;
14			}
15
16			/**
17			* Middleware invokable class
18			*
19			* @param RequestInterface $request PSR7 request
20			* @param ResponseInterface $response PSR7 response
21			* @param callable $next Next middleware
22			*
23			* @return ResponseInterface
24			*/
25			public function __invoke(RequestInterface $request, ResponseInterface $response, callable $next)
			0 ignored issues – show Coding Style introduced 2017-04-13 22:31 UTC by Report Bug Copy Issue Report `__invoke` uses the super-global variable `$_SERVER` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
26			{
27			$response = $next($request, $response);
28			$origin = isset($_SERVER['HTTP_ORIGIN']) ? $_SERVER['HTTP_ORIGIN'] : 'none';
29			return $this->getResponse($response, $origin, $this->cors);
30			}
31
32			/**
33			* Gets allow method string
34			* @param array $cors access list with methods
35			* @param string $origin origin domain
36			* @return string comma delimited string of methods
37			*/
38			private function getAllowedMethodsString($cors, $origin)
39			{
40			$methods = $cors[$origin];
41			if (is_array($methods)) {
42			$methods = implode(', ', $methods);
43			}
44			return $methods;
45			}
46
47			/**
48			* Gets the proper origin header value
49			* @param array $cors cors config
50			* @param string $origin http_origin
51			* @return string origin value
52			*/
53			private function getOriginHeader($cors, $origin)
54			{
55			if (isset($cors['*'])) {
56			return '*';
57			}
58			return $origin;
59			}
60
61			/**
62			* Gets appropriate response object
63			* @param ResponseInterface $response PSR7 Response
64			* @param string $origin origin domain
65			* @param array $cors access list with methods
66			* @return ResponseInterface PSR7 Response
67			*/
68			private function getResponse(ResponseInterface $response, $origin, $cors)
69			{
70
71			if (isset($cors['*'])) {
72			$origin = '*';
73			}
74
75			if (!isset($cors[$origin])) {
76			return $response;
77			}
78
79			return $response
80			->withHeader('Access-Control-Allow-Origin', $this->getOriginHeader($cors, $origin))
81			->withHeader('Access-Control-Allow-Methods', $this->getAllowedMethodsString($cors, $origin));
82			}
83			}
84

eko3alpha / slim-cors-middleware

CorsMiddleware A last analyzed 2017-04-21 13:36 UTC

Complexity

Size/Duplication

Coupling/Cohesion

Importance

5 Methods

Duplication Side-by-Side

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CorsMiddleware A
last analyzed 2017-04-21 13:36 UTC