Authorization::__invoke() - Code Metrics - Inspection of "Add php di support" - chadicus/slim-oauth2-middleware - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Pull Request — master (#26)

unknown

created 2017-01-09 17:23 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 DI;
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
     */
    private $container;

    /**
     * Create a new instance of the Authorization middleware.
     *
     * @param OAuth2\Server $server    The configured OAuth2 server.
     * @param DI\Container  $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.
     */
    public function __construct(OAuth2\Server $server, DI\Container $container, array $scopes = [])
    {
        $this->server = $server;
        $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->container->set('token', $this->server->getResourceController()->getToken());
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 $next($request, $response);
            }
        }

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

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

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

    /**
     * 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 DI;
9			use Psr\Http\Message\ServerRequestInterface;
10			use Psr\Http\Message\ResponseInterface;
11			use OAuth2;
12
13			/**
14			* Slim Middleware to handle OAuth2 Authorization.
15			*/
16			class Authorization implements MiddlewareInterface
17			{
18			/**
19			* OAuth2 Server
20			*
21			* @var OAuth2\Server
22			*/
23			private $server;
24
25			/**
26			* Array of scopes required for authorization.
27			*
28			* @var array
29			*/
30			private $scopes;
31
32			/**
33			* Container for token.
34			*
35			* @var ArrayAccess
36			*/
37			private $container;
38
39			/**
40			* Create a new instance of the Authorization middleware.
41			*
42			* @param OAuth2\Server $server The configured OAuth2 server.
43			* @param DI\Container $container A container object in which to store the token from the request.
44			* @param array $scopes Scopes required for authorization. $scopes can be given as an array of arrays. OR
45			* logic will use with each grouping. Example:
46			* Given ['superUser', ['basicUser', 'aPermission']], the request will be verified
47			* if the request token has 'superUser' scope OR 'basicUser' and 'aPermission' as
48			* its scope.
49			*/
50			public function __construct(OAuth2\Server $server, DI\Container $container, array $scopes = [])
51			{
52			$this->server = $server;
53			$this->container = $container;
			0 ignored issues – show Documentation Bug introduced 2017-01-09 17:26 UTC by Report Bug Copy Issue Report It seems like `$container` of type `object<DI\Container>` is incompatible with the declared type `object<ArrayAccess>` of property `$container`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
54			$this->scopes = $this->formatScopes($scopes);
55			}
56
57			/**
58			* Execute this middleware.
59			*
60			* @param ServerRequestInterface $request The PSR7 request.
61			* @param ResponseInterface $response The PSR7 response.
62			* @param callable $next The Next middleware.
63			*
64			* @return ResponseInterface
65			*/
66			public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
67			{
68			$oauth2Request = RequestBridge::toOAuth2($request);
69			foreach ($this->scopes as $scope) {
70			if ($this->server->verifyResourceRequest($oauth2Request, null, $scope)) {
71			$this->container->set('token', $this->server->getResourceController()->getToken());
			0 ignored issues – show Bug introduced 2017-01-09 17:26 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `OAuth2\Controller\ResourceControllerInterface` as the method `getToken()` does only exist in the following implementations of said interface: `OAuth2\Controller\ResourceController`, `OAuth2\OpenID\Controller\UserInfoController`. 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... Bug introduced 2017-01-09 17:26 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...
72			return $next($request, $response);
73			}
74			}
75
76			$response = ResponseBridge::fromOAuth2($this->server->getResponse());
77
78			if ($response->hasHeader('Content-Type')) {
79			return $response;
80			}
81
82			return $response->withHeader('Content-Type', 'application/json');
83			}
84
85			/**
86			* Returns a callable function to be used as a authorization middleware with a specified scope.
87			*
88			* @param array $scopes Scopes require for authorization.
89			*
90			* @return Authorization
91			*/
92			public function withRequiredScope(array $scopes)
93			{
94			$clone = clone $this;
95			$clone->scopes = $clone->formatScopes($scopes);
96			return $clone;
97			}
98
99			/**
100			* Helper method to ensure given scopes are formatted properly.
101			*
102			* @param array $scopes Scopes required for authorization.
103			*
104			* @return array The formatted scopes array.
105			*/
106			private function formatScopes(array $scopes)
107			{
108			if (empty($scopes)) {
109			return [null]; //use at least 1 null scope
110			}
111
112			array_walk(
113			$scopes,
114			function (&$scope) {
115			if (is_array($scope)) {
116			$scope = implode(' ', $scope);
117			}
118			}
119			);
120
121			return $scopes;
122			}
123			}
124

chadicus / slim-oauth2-middleware

Pull Request — master (#26)

Authorization::__invoke() A

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