Authorization::__invoke() - Code Metrics - Inspection of "Merge pull request #28 from chadicus/fea/allow-int..." - chadicus/slim-oauth2-middleware - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( e2d8b6...aa5383 )

by Chad

created 2017-01-09 20:49 UTC

Authorization::__invoke() A

↳ Parent: Authorization

Complexity

Conditions	4
Paths	5

Size

Total Lines	18
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	18
rs	9.2
c	0
b	0
f	0
cc	4
eloc	10
nc	5
nop	3

<?php
namespace Chadicus\Slim\OAuth2\Middleware;

use ArrayAccess;
use Chadicus\Slim\OAuth2\Http\RequestBridge;
use Chadicus\Slim\OAuth2\Http\ResponseBridge;
use Chadicus\Psr\Middleware\MiddlewareInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\ResponseInterface;
use OAuth2;

/**
 * Slim Middleware to handle OAuth2 Authorization.
 */
class Authorization implements MiddlewareInterface
{
    /**
     * OAuth2 Server
     *
     * @var OAuth2\Server
     */
    private $server;

    /**
     * Array of scopes required for authorization.
     *
     * @var array
     */
    private $scopes;

    /**
     * Container for token.
     *
     * @var ArrayAccess|ContainerInterface
     */
    private $container;

    /**
     * Create a new instance of the Authroization middleware.
     *
     * @param OAuth2\Server $server          The configured OAuth2 server.

     * @param ArrayAccess|ContainerInterface $container A container object in which to store the token from the request.
     * @param array         $scopes          Scopes required for authorization. $scopes can be given as an array of

     *                                       arrays. OR logic will use with each grouping.
     *                                       Example:
     *                                       Given ['superUser', ['basicUser', 'aPermission']], the request will be
     *                                       verified if the request token has 'superUser' scope OR 'basicUser' and
     *                                       'aPermission' as its scope.
     *
     * @throws \InvalidArgumentException Thrown if $container is not an instance of ArrayAccess or ContainerInterface.
     */
    public function __construct(OAuth2\Server $server, $container, array $scopes = [])
    {
        $this->server = $server;
        if (!is_a($container, '\\ArrayAccess') && !is_a($container, '\\Interop\\Container\\ContainerInterface')) {
            throw new \InvalidArgumentException(
                '$container does not implement \\ArrayAccess or \\Interop\\Container\\ContainerInterface'
            );
        }

        $this->container = $container;
        $this->scopes = $this->formatScopes($scopes);
    }

    /**
     * Execute this middleware.
     *
     * @param  ServerRequestInterface $request  The PSR7 request.
     * @param  ResponseInterface      $response The PSR7 response.
     * @param  callable               $next     The Next middleware.
     *
     * @return ResponseInterface
     */
    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
    {
        $oauth2Request = RequestBridge::toOAuth2($request);
        foreach ($this->scopes as $scope) {
            if ($this->server->verifyResourceRequest($oauth2Request, null, $scope)) {
                $this->setToken($this->server->getResourceController()->getToken());
                return $next($request, $response);
            }
        }

        $response = ResponseBridge::fromOAuth2($this->server->getResponse());


        if ($response->hasHeader('Content-Type')) {
            return $response;
        }

        return $response->withHeader('Content-Type', 'application/json');
    }

    /**
     * Helper method to set the token value in the container instance.
     *
     * @param array $token The token from the incoming request.
     *
     * @return void
     */
    private function setToken(array $token)
    {
        if (is_a($this->container, '\\ArrayAccess')) {
            $this->container['token'] = $token;
            return;
        }

       $this->container->set('token', $token);
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.
    }
}
    }

    /**
     * Returns a callable function to be used as a authorization middleware with a specified scope.
     *
     * @param array $scopes Scopes require for authorization.
     *
     * @return Authorization
     */
    public function withRequiredScope(array $scopes)
    {
        $clone = clone $this;
        $clone->scopes = $clone->formatScopes($scopes);
        return $clone;
    }

    /**
     * Helper method to ensure given scopes are formatted properly.
     *
     * @param array $scopes Scopes required for authorization.
     *
     * @return array The formatted scopes array.
     */
    private function formatScopes(array $scopes)
    {
        if (empty($scopes)) {
            return [null]; //use at least 1 null scope
        }

        array_walk(
            $scopes,
            function (&$scope) {
                if (is_array($scope)) {
                    $scope = implode(' ', $scope);
                }
            }
        );

        return $scopes;
    }
}


1			<?php
2			namespace Chadicus\Slim\OAuth2\Middleware;
3
4			use ArrayAccess;
5			use Chadicus\Slim\OAuth2\Http\RequestBridge;
6			use Chadicus\Slim\OAuth2\Http\ResponseBridge;
7			use Chadicus\Psr\Middleware\MiddlewareInterface;
8			use Psr\Http\Message\ServerRequestInterface;
9			use Psr\Http\Message\ResponseInterface;
10			use OAuth2;
11
12			/**
13			* Slim Middleware to handle OAuth2 Authorization.
14			*/
15			class Authorization implements MiddlewareInterface
16			{
17			/**
18			* OAuth2 Server
19			*
20			* @var OAuth2\Server
21			*/
22			private $server;
23
24			/**
25			* Array of scopes required for authorization.
26			*
27			* @var array
28			*/
29			private $scopes;
30
31			/**
32			* Container for token.
33			*
34			* @var ArrayAccess\|ContainerInterface
35			*/
36			private $container;
37
38			/**
39			* Create a new instance of the Authroization middleware.
40			*
41			* @param OAuth2\Server $server The configured OAuth2 server.
			0 ignored issues – show Coding Style introduced 2017-01-09 18:55 UTC by Report Bug Copy Issue Report Expected 18 spaces after parameter type; 1 found Loading history... Coding Style introduced 2017-01-09 18:55 UTC by Report Bug Copy Issue Report Expected 4 spaces after parameter name; 10 found Loading history...
42			* @param ArrayAccess\|ContainerInterface $container A container object in which to store the token from the request.
43			* @param array $scopes Scopes required for authorization. $scopes can be given as an array of
			0 ignored issues – show Coding Style introduced 2017-01-09 18:55 UTC by Report Bug Copy Issue Report Expected 26 spaces after parameter type; 9 found Loading history... Coding Style introduced 2017-01-09 18:55 UTC by Report Bug Copy Issue Report Expected 4 spaces after parameter name; 10 found Loading history...
44			* arrays. OR logic will use with each grouping.
45			* Example:
46			* Given ['superUser', ['basicUser', 'aPermission']], the request will be
47			* verified if the request token has 'superUser' scope OR 'basicUser' and
48			* 'aPermission' as its scope.
49			*
50			* @throws \InvalidArgumentException Thrown if $container is not an instance of ArrayAccess or ContainerInterface.
51			*/
52			public function __construct(OAuth2\Server $server, $container, array $scopes = [])
53			{
54			$this->server = $server;
55			if (!is_a($container, '\\ArrayAccess') && !is_a($container, '\\Interop\\Container\\ContainerInterface')) {
56			throw new \InvalidArgumentException(
57			'$container does not implement \\ArrayAccess or \\Interop\\Container\\ContainerInterface'
58			);
59			}
60
61			$this->container = $container;
62			$this->scopes = $this->formatScopes($scopes);
63			}
64
65			/**
66			* Execute this middleware.
67			*
68			* @param ServerRequestInterface $request The PSR7 request.
69			* @param ResponseInterface $response The PSR7 response.
70			* @param callable $next The Next middleware.
71			*
72			* @return ResponseInterface
73			*/
74			public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
75			{
76			$oauth2Request = RequestBridge::toOAuth2($request);
77			foreach ($this->scopes as $scope) {
78			if ($this->server->verifyResourceRequest($oauth2Request, null, $scope)) {
79			$this->setToken($this->server->getResourceController()->getToken());
80			return $next($request, $response);
81			}
82			}
83
84			$response = ResponseBridge::fromOAuth2($this->server->getResponse());
			0 ignored issues – show Compatibility introduced 2016-05-22 16:53 UTC by Report Bug Copy Issue Report `$this->server->getResponse()` of type `object<OAuth2\ResponseInterface>` is not a sub-type of `object<OAuth2\Response>`. It seems like you assume a concrete implementation of the interface `OAuth2\ResponseInterface` to be always present. This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass. Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type. Loading history...
85
86			if ($response->hasHeader('Content-Type')) {
87			return $response;
88			}
89
90			return $response->withHeader('Content-Type', 'application/json');
91			}
92
93			/**
94			* Helper method to set the token value in the container instance.
95			*
96			* @param array $token The token from the incoming request.
97			*
98			* @return void
99			*/
100			private function setToken(array $token)
101			{
102			if (is_a($this->container, '\\ArrayAccess')) {
103			$this->container['token'] = $token;
104			return;
105			}
106
107			$this->container->set('token', $token);
			0 ignored issues – show Bug introduced 2017-01-09 18:55 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `ArrayAccess` as the method `set()` does only exist in the following implementations of said interface: `Guzzle\Common\Collection`, `Guzzle\Http\QueryString`, `Guzzle\Service\Builder\ServiceBuilder`, `Guzzle\Service\Command\AbstractCommand`, `Guzzle\Service\Command\ClosureCommand`, `Guzzle\Service\Command\OperationCommand`, `Guzzle\Service\Resource\Model`, `Guzzle\Tests\Service\Mock\Command\IterableCommand`, `Guzzle\Tests\Service\Mock\Command\MockCommand`, `Guzzle\Tests\Service\Mock\Command\OtherCommand`, `Guzzle\Tests\Service\Mock\Command\Sub\Sub`, `HttpQueryString`. 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...
108			}
109
110			/**
111			* Returns a callable function to be used as a authorization middleware with a specified scope.
112			*
113			* @param array $scopes Scopes require for authorization.
114			*
115			* @return Authorization
116			*/
117			public function withRequiredScope(array $scopes)
118			{
119			$clone = clone $this;
120			$clone->scopes = $clone->formatScopes($scopes);
121			return $clone;
122			}
123
124			/**
125			* Helper method to ensure given scopes are formatted properly.
126			*
127			* @param array $scopes Scopes required for authorization.
128			*
129			* @return array The formatted scopes array.
130			*/
131			private function formatScopes(array $scopes)
132			{
133			if (empty($scopes)) {
134			return [null]; //use at least 1 null scope
135			}
136
137			array_walk(
138			$scopes,
139			function (&$scope) {
140			if (is_array($scope)) {
141			$scope = implode(' ', $scope);
142			}
143			}
144			);
145
146			return $scopes;
147			}
148			}
149

chadicus / slim-oauth2-middleware

Push — master ( e2d8b6...aa5383 )

Authorization::__invoke() A

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