Application::__construct() - Code Metrics - eole-io/sandstone - Measure and Improve Code Quality continuously with Scrutinizer

Application::__construct() A
last analyzed 2018-04-24 10:49 UTC

↳ Parent: Application

Complexity

Conditions	1
Paths	1

Size

Total Lines	6
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	6
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	4
nc	1
nop	1

<?php

namespace Eole\Sandstone\Websocket;

use Psr\Log\LoggerAwareTrait;
use JMS\Serializer\EventDispatcher\EventSubscriberInterface as WrongEventSubscriberInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Security\Core\User\UserInterface;
use Ratchet\ConnectionInterface;
use Ratchet\Wamp\WampServerInterface;
use Eole\Sandstone\Logger\EchoLogger;
use Eole\Sandstone\OAuth2\Security\Authentication\Token\OAuth2Token;
use Eole\Sandstone\Websocket\Event\ConnectionEvent;
use Eole\Sandstone\Websocket\Event\WebsocketAuthenticationEvent;
use Eole\Sandstone\Websocket\Event\ConnectionErrorEvent;
use Eole\Sandstone\Websocket\Event\WampEvent;
use Eole\Sandstone\Websocket\Event\PublishEvent;
use Eole\Sandstone\Websocket\Event\RPCEvent;
use Eole\Sandstone\Application as SandstoneApplication;

final class Application implements WampServerInterface
{
    use LoggerAwareTrait;

    /**
     * @var SandstoneApplication
     */
    private $sandstoneApplication;

    /**
     * @var Topic[]
     */
    private $topics;

    /**
     * @param SandstoneApplication $sandstoneApplication
     */
    public function __construct(SandstoneApplication $sandstoneApplication)
    {
        $this->sandstoneApplication = $sandstoneApplication;
        $this->topics = array();
        $this->logger = new EchoLogger();
    }

    /**
     * @param ConnectionInterface $conn
     *
     * @return UserInterface|null
     *
     * @throws \Exception
     */
    private function authenticateUser(ConnectionInterface $conn)
    {
        $queryParameters = [];
        parse_str($conn->httpRequest->getUri()->getQuery(), $queryParameters);
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}

        if (!isset($queryParameters['access_token'])) {
            return null;
        }

        $accessToken = $queryParameters['access_token'];
        $authenticationManager = $this->sandstoneApplication['security.authentication_manager'];

        $authenticatedToken = $authenticationManager->authenticate(new OAuth2Token($accessToken));
        $user = $authenticatedToken->getUser();
        $isUser = $user instanceof UserInterface;

        if (!$isUser) {
            throw new \Exception('User not found.');
        }

        return $user;
    }

    /**
     * {@InheritDoc}
     */
    public function onOpen(ConnectionInterface $conn)
    {
        $this->dispatch(ConnectionEvent::ON_OPEN, new ConnectionEvent($conn));

        $this->logger->info('Connection event', ['event' => 'open']);
        $this->logger->info('Authentication...');

        try {
            $user = $this->authenticateUser($conn);
            if (null === $user) {
                $this->logger->info('Anonymous connection');
            } else {
                $this->dispatch(ConnectionEvent::ON_AUTHENTICATION, new WebsocketAuthenticationEvent($conn, $user));
                $this->logger->info('User logged.', ['username' => $user->getUsername()]);
            }
        } catch (\Exception $e) {
            $this->logger->notice('Failed authentication', ['error_message' => $e->getMessage()]);
            $conn->send(json_encode('Could not authenticate client, closing connection.'));
            $conn->close();

            return;
        }

        $conn->user = $user;
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
    }

    /**
     * {@InheritDoc}
     */
    private function getTopic($topicPath)
    {
        if (!isset($this->topics[$topicPath])) {
            $this->topics[$topicPath] = $this->loadTopic($topicPath);
        }

        return $this->topics[$topicPath];
    }

    /**
     * @param string $topicPath
     *
     * @return Topic
     */
    private function loadTopic($topicPath)
    {
        $topic = $this->sandstoneApplication['sandstone.websocket.router']->loadTopic($topicPath);

        if (!$this->sandstoneApplication->offsetExists('serializer')) {
            throw new \RuntimeException('A serializer must be registered');
        }

        $topic->setNormalizer($this->sandstoneApplication['serializer']);

        if ($topic instanceof EventSubscriberInterface) {
            $this->sandstoneApplication['dispatcher']->addSubscriber($topic);
        }

        // debug purpose only. Sometimes I use the wrong namespace (JMS one), and it's hard to debug.
        if ($topic instanceof WrongEventSubscriberInterface) {
            throw new \LogicException(
                get_class($topic).' seems to implements the wrong EventSubscriberInterface. '.
                'Use the Symfony one, not the JMS one.'
            );
        }

        return $topic;
    }

    /**
     * {@InheritDoc}
     */
    public function onSubscribe(ConnectionInterface $conn, $topic)

    {
        $this->dispatch(ConnectionEvent::ON_SUBSCRIBE, new WampEvent($conn, $topic));

        $this->logger->info('Topic event', ['event' => 'subscribe', 'topic' => $topic]);

        $this->getTopic($topic)->onSubscribe($conn, $topic);

    }

    /**
     * {@InheritDoc}
     */
    public function onPublish(ConnectionInterface $conn, $topic, $event, array $exclude, array $eligible)
    {
        $this->dispatch(ConnectionEvent::ON_PUBLISH, new PublishEvent($conn, $topic, $event, $exclude, $eligible));

        $this->logger->info('Topic event', ['event' => 'publish', 'topic' => $topic]);

        $this->getTopic($topic)->onPublish($conn, $topic, $event);

    }

    /**
     * {@InheritDoc}
     */
    public function onUnSubscribe(ConnectionInterface $conn, $topic)

    {
        $this->dispatch(ConnectionEvent::ON_UNSUBSCRIBE, new WampEvent($conn, $topic));

        $this->logger->info('Topic event', ['event' => 'unsubscribe', 'topic' => $topic]);

        $this->getTopic($topic)->onUnSubscribe($conn, $topic);

    }

    /**
     * {@InheritDoc}
     */
    public function onClose(ConnectionInterface $conn)

    {
        $this->dispatch(ConnectionEvent::ON_CLOSE, new ConnectionEvent($conn));

        $this->logger->info('Connection event', ['event' => 'close']);

        foreach ($this->topics as $topic) {
            if ($topic->has($conn)) {
                $topic->onUnSubscribe($conn, $topic);

            }
        }
    }

    /**
     * {@InheritDoc}
     */
    public function onCall(ConnectionInterface $conn, $id, $topic, array $params)
    {
        $this->dispatch(ConnectionEvent::ON_RPC, new RPCEvent($conn, $topic, $id, $params));

        $this->logger->info('Topic event', ['event' => 'call', 'topic' => $topic]);
    }

    /**
     * {@InheritDoc}
     */
    public function onError(ConnectionInterface $conn, \Exception $e)
    {
        $this->dispatch(ConnectionEvent::ON_ERROR, new ConnectionErrorEvent($conn, $e));

        $this->logger->info('Connection event', ['event' => 'error', 'message' => $e->getMessage()]);
    }

    /**
     * Dispatch a ConnectionEvent to SandstoneApplication dispatcher.
     *
     * @param string $eventName
     * @param ConnectionEvent $event
     */
    private function dispatch($eventName, ConnectionEvent $event)
    {
        $this->sandstoneApplication['dispatcher']->dispatch($eventName, $event);
    }
}


Application::__construct() A
last analyzed 2018-04-24 10:49 UTC

Complexity

Size

Duplication

Importance

Available Fixes

Available Fixes

1		<?php
2
3		namespace Eole\Sandstone\Websocket;
4
5		use Psr\Log\LoggerAwareTrait;
6		use JMS\Serializer\EventDispatcher\EventSubscriberInterface as WrongEventSubscriberInterface;
7		use Symfony\Component\EventDispatcher\EventSubscriberInterface;
8		use Symfony\Component\Security\Core\User\UserInterface;
9		use Ratchet\ConnectionInterface;
10		use Ratchet\Wamp\WampServerInterface;
11		use Eole\Sandstone\Logger\EchoLogger;
12		use Eole\Sandstone\OAuth2\Security\Authentication\Token\OAuth2Token;
13		use Eole\Sandstone\Websocket\Event\ConnectionEvent;
14		use Eole\Sandstone\Websocket\Event\WebsocketAuthenticationEvent;
15		use Eole\Sandstone\Websocket\Event\ConnectionErrorEvent;
16		use Eole\Sandstone\Websocket\Event\WampEvent;
17		use Eole\Sandstone\Websocket\Event\PublishEvent;
18		use Eole\Sandstone\Websocket\Event\RPCEvent;
19		use Eole\Sandstone\Application as SandstoneApplication;
20
21		final class Application implements WampServerInterface
22		{
23		use LoggerAwareTrait;
24
25		/**
26		* @var SandstoneApplication
27		*/
28		private $sandstoneApplication;
29
30		/**
31		* @var Topic[]
32		*/
33		private $topics;
34
35		/**
36		* @param SandstoneApplication $sandstoneApplication
37		*/
38		public function __construct(SandstoneApplication $sandstoneApplication)
39		{
40		$this->sandstoneApplication = $sandstoneApplication;
41		$this->topics = array();
42		$this->logger = new EchoLogger();
43		}
44
45		/**
46		* @param ConnectionInterface $conn
47		*
48		* @return UserInterface\|null
49		*
50		* @throws \Exception
51		*/
52		private function authenticateUser(ConnectionInterface $conn)
53		{
54		$queryParameters = [];
55		parse_str($conn->httpRequest->getUri()->getQuery(), $queryParameters);
		0 ignored issues – show Bug introduced 2017-10-25 11:45 UTC by Report Bug Copy Issue Report Accessing `httpRequest` on the interface `Ratchet\ConnectionInterface` suggest that you code against a concrete implementation. How about adding an `instanceof` check? If you access a property on an interface, you most likely code against a concrete implementation of the interface. Available Fixes Adding an additional type check: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeInterface $object) { if ($object instanceof SomeClass) { $a = $object->a; } } Changing the type hint: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeClass $object) { $a = $object->a; } Loading history...
56
57		if (!isset($queryParameters['access_token'])) {
58		return null;
59		}
60
61		$accessToken = $queryParameters['access_token'];
62		$authenticationManager = $this->sandstoneApplication['security.authentication_manager'];
63
64		$authenticatedToken = $authenticationManager->authenticate(new OAuth2Token($accessToken));
65		$user = $authenticatedToken->getUser();
66		$isUser = $user instanceof UserInterface;
67
68		if (!$isUser) {
69		throw new \Exception('User not found.');
70		}
71
72		return $user;
73		}
74
75		/**
76		* {@InheritDoc}
77		*/
78		public function onOpen(ConnectionInterface $conn)
79		{
80		$this->dispatch(ConnectionEvent::ON_OPEN, new ConnectionEvent($conn));
81
82		$this->logger->info('Connection event', ['event' => 'open']);
83		$this->logger->info('Authentication...');
84
85		try {
86		$user = $this->authenticateUser($conn);
87		if (null === $user) {
88		$this->logger->info('Anonymous connection');
89		} else {
90		$this->dispatch(ConnectionEvent::ON_AUTHENTICATION, new WebsocketAuthenticationEvent($conn, $user));
91		$this->logger->info('User logged.', ['username' => $user->getUsername()]);
92		}
93		} catch (\Exception $e) {
94		$this->logger->notice('Failed authentication', ['error_message' => $e->getMessage()]);
95		$conn->send(json_encode('Could not authenticate client, closing connection.'));
96		$conn->close();
97
98		return;
99		}
100
101		$conn->user = $user;
		0 ignored issues – show Bug introduced 2016-06-19 11:45 UTC by Report Bug Copy Issue Report Accessing `user` on the interface `Ratchet\ConnectionInterface` suggest that you code against a concrete implementation. How about adding an `instanceof` check? If you access a property on an interface, you most likely code against a concrete implementation of the interface. Available Fixes Adding an additional type check: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeInterface $object) { if ($object instanceof SomeClass) { $a = $object->a; } } Changing the type hint: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeClass $object) { $a = $object->a; } Loading history...
102		}
103
104		/**
105		* {@InheritDoc}
106		*/
107		private function getTopic($topicPath)
108		{
109		if (!isset($this->topics[$topicPath])) {
110		$this->topics[$topicPath] = $this->loadTopic($topicPath);
111		}
112
113		return $this->topics[$topicPath];
114		}
115
116		/**
117		* @param string $topicPath
118		*
119		* @return Topic
120		*/
121		private function loadTopic($topicPath)
122		{
123		$topic = $this->sandstoneApplication['sandstone.websocket.router']->loadTopic($topicPath);
124
125		if (!$this->sandstoneApplication->offsetExists('serializer')) {
126		throw new \RuntimeException('A serializer must be registered');
127		}
128
129		$topic->setNormalizer($this->sandstoneApplication['serializer']);
130
131		if ($topic instanceof EventSubscriberInterface) {
132		$this->sandstoneApplication['dispatcher']->addSubscriber($topic);
133		}
134
135		// debug purpose only. Sometimes I use the wrong namespace (JMS one), and it's hard to debug.
136		if ($topic instanceof WrongEventSubscriberInterface) {
137		throw new \LogicException(
138		get_class($topic).' seems to implements the wrong EventSubscriberInterface. '.
139		'Use the Symfony one, not the JMS one.'
140		);
141		}
142
143		return $topic;
144		}
145
146		/**
147		* {@InheritDoc}
148		*/
149	View Code Duplication	public function onSubscribe(ConnectionInterface $conn, $topic)
		0 ignored issues – show Duplication introduced 2017-09-19 16:06 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
150		{
151		$this->dispatch(ConnectionEvent::ON_SUBSCRIBE, new WampEvent($conn, $topic));
152
153		$this->logger->info('Topic event', ['event' => 'subscribe', 'topic' => $topic]);
154
155		$this->getTopic($topic)->onSubscribe($conn, $topic);
		0 ignored issues – show Compatibility introduced 2016-06-19 11:45 UTC by Report Bug Copy Issue Report `$conn` of type `object<Ratchet\ConnectionInterface>` is not a sub-type of `object<Ratchet\Wamp\WampConnection>`. It seems like you assume a concrete implementation of the interface `Ratchet\ConnectionInterface` 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... Bug introduced 2016-06-19 11:45 UTC by Report Bug Copy Issue Report It seems like `$topic` defined by parameter `$topic` on line 149 can also be of type `object<Ratchet\Wamp\Topic>`; however, `Eole\Sandstone\Websocket\Topic::onSubscribe()` does only seem to accept `string`, maybe add an additional type check? This check looks at variables that have been passed in as parameters and are passed out again to other methods. If the outgoing method call has stricter type requirements than the method itself, an issue is raised. An additional type check may prevent trouble. Loading history...
156		}
157
158		/**
159		* {@InheritDoc}
160		*/
161		public function onPublish(ConnectionInterface $conn, $topic, $event, array $exclude, array $eligible)
162		{
163		$this->dispatch(ConnectionEvent::ON_PUBLISH, new PublishEvent($conn, $topic, $event, $exclude, $eligible));
164
165		$this->logger->info('Topic event', ['event' => 'publish', 'topic' => $topic]);
166
167		$this->getTopic($topic)->onPublish($conn, $topic, $event);
		0 ignored issues – show Compatibility introduced 2016-11-29 20:11 UTC by Report Bug Copy Issue Report `$conn` of type `object<Ratchet\ConnectionInterface>` is not a sub-type of `object<Ratchet\Wamp\WampConnection>`. It seems like you assume a concrete implementation of the interface `Ratchet\ConnectionInterface` 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... Bug introduced 2016-06-19 11:45 UTC by Report Bug Copy Issue Report It seems like `$topic` defined by parameter `$topic` on line 161 can also be of type `object<Ratchet\Wamp\Topic>`; however, `Eole\Sandstone\Websocket\Topic::onPublish()` does only seem to accept `string`, maybe add an additional type check? This check looks at variables that have been passed in as parameters and are passed out again to other methods. If the outgoing method call has stricter type requirements than the method itself, an issue is raised. An additional type check may prevent trouble. Loading history...
168		}
169
170		/**
171		* {@InheritDoc}
172		*/
173	View Code Duplication	public function onUnSubscribe(ConnectionInterface $conn, $topic)
		0 ignored issues – show Duplication introduced 2017-09-19 16:06 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
174		{
175		$this->dispatch(ConnectionEvent::ON_UNSUBSCRIBE, new WampEvent($conn, $topic));
176
177		$this->logger->info('Topic event', ['event' => 'unsubscribe', 'topic' => $topic]);
178
179		$this->getTopic($topic)->onUnSubscribe($conn, $topic);
		0 ignored issues – show Compatibility introduced 2016-06-19 11:45 UTC by Report Bug Copy Issue Report `$conn` of type `object<Ratchet\ConnectionInterface>` is not a sub-type of `object<Ratchet\Wamp\WampConnection>`. It seems like you assume a concrete implementation of the interface `Ratchet\ConnectionInterface` 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... Bug introduced 2016-06-19 11:45 UTC by Report Bug Copy Issue Report It seems like `$topic` defined by parameter `$topic` on line 173 can also be of type `object<Ratchet\Wamp\Topic>`; however, `Eole\Sandstone\Websocket\Topic::onUnSubscribe()` does only seem to accept `string`, maybe add an additional type check? This check looks at variables that have been passed in as parameters and are passed out again to other methods. If the outgoing method call has stricter type requirements than the method itself, an issue is raised. An additional type check may prevent trouble. Loading history...
180		}
181
182		/**
183		* {@InheritDoc}
184		*/
185	View Code Duplication	public function onClose(ConnectionInterface $conn)
		0 ignored issues – show Duplication introduced 2017-09-19 16:06 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
186		{
187		$this->dispatch(ConnectionEvent::ON_CLOSE, new ConnectionEvent($conn));
188
189		$this->logger->info('Connection event', ['event' => 'close']);
190
191		foreach ($this->topics as $topic) {
192		if ($topic->has($conn)) {
193		$topic->onUnSubscribe($conn, $topic);
		0 ignored issues – show Compatibility introduced 2016-06-19 11:45 UTC by Report Bug Copy Issue Report `$conn` of type `object<Ratchet\ConnectionInterface>` is not a sub-type of `object<Ratchet\Wamp\WampConnection>`. It seems like you assume a concrete implementation of the interface `Ratchet\ConnectionInterface` 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...
194		}
195		}
196		}
197
198		/**
199		* {@InheritDoc}
200		*/
201		public function onCall(ConnectionInterface $conn, $id, $topic, array $params)
202		{
203		$this->dispatch(ConnectionEvent::ON_RPC, new RPCEvent($conn, $topic, $id, $params));
204
205		$this->logger->info('Topic event', ['event' => 'call', 'topic' => $topic]);
206		}
207
208		/**
209		* {@InheritDoc}
210		*/
211		public function onError(ConnectionInterface $conn, \Exception $e)
212		{
213		$this->dispatch(ConnectionEvent::ON_ERROR, new ConnectionErrorEvent($conn, $e));
214
215		$this->logger->info('Connection event', ['event' => 'error', 'message' => $e->getMessage()]);
216		}
217
218		/**
219		* Dispatch a ConnectionEvent to SandstoneApplication dispatcher.
220		*
221		* @param string $eventName
222		* @param ConnectionEvent $event
223		*/
224		private function dispatch($eventName, ConnectionEvent $event)
225		{
226		$this->sandstoneApplication['dispatcher']->dispatch($eventName, $event);
227		}
228		}
229

eole-io / sandstone

Application::__construct() A last analyzed 2018-04-24 10:49 UTC

Complexity

Size

Duplication

Importance

Available Fixes

Available Fixes

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Application::__construct() A
last analyzed 2018-04-24 10:49 UTC