WebSocketServer::start() - Code Metrics - Inspection of "Add wss support" - Nekland/Woketo - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#101)

by Maxime

created 2017-01-15 11:56 UTC

WebSocketServer::start() B

↳ Parent: WebSocketServer

Complexity

Conditions	4
Paths	3

Size

Total Lines	25
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	20

Importance

Changes

Metric	Value
dl	0
loc	25
ccs	0
cts	16
cp	0
rs	8.5806
c	0
b	0
f	0
cc	4
eloc	15
nc	3
nop	0
crap	20

<?php

/**
 * This file is a part of Woketo package.
 *
 * (c) Nekland <[email protected]>
 *
 * For the full license, take a look to the LICENSE file
 * on the root directory of this project
 */

namespace Nekland\Woketo\Server;

use Nekland\Woketo\Exception\RuntimeException;
use Nekland\Woketo\Message\MessageHandlerInterface;
use Nekland\Woketo\Rfc6455\FrameFactory;
use Nekland\Woketo\Rfc6455\MessageFactory;
use Nekland\Woketo\Rfc6455\MessageHandler\CloseFrameHandler;
use Nekland\Woketo\Rfc6455\MessageHandler\RsvCheckFrameHandler;
use Nekland\Woketo\Rfc6455\MessageHandler\WrongOpcodeHandler;
use Nekland\Woketo\Rfc6455\MessageHandler\PingFrameHandler;
use Nekland\Woketo\Rfc6455\MessageProcessor;
use Nekland\Woketo\Rfc6455\ServerHandshake;
use Nekland\Woketo\Utils\SimpleLogger;
use Psr\Log\LoggerInterface;
use Psr\Log\LogLevel;
use React\EventLoop\LoopInterface;
use React\Socket\ConnectionInterface;

class WebSocketServer
{
    /**
     * @var int
     */
    private $port;

    /**
     * @var string
     */
    private $host;

    /**
     * @var ServerHandshake
     */
    private $handshake;

    /**
     * @var MessageHandlerInterface
     */
    private $messageHandler;

    /**
     * @var array
     */
    private $connections;

    /**
     * @var LoopInterface
     */
    private $loop;

    /**
     * @var MessageProcessor
     */
    private $messageProcessor;

    /**
     * @var array
     */
    private $config;

    /**
     * @var LoggerInterface
     */
    private $logger;

    /**
     * @param int    $port    The number of the port to bind
     * @param string $host    The host to listen on (by default 127.0.0.1)
     * @param array  $config
     */
    public function __construct($port, $host = '127.0.0.1', $config = [])
    {
        $this->setConfig($config);
        $this->host = $host;
        $this->port = $port;
        $this->handshake = new ServerHandshake();
        $this->connections = [];
        $this->buildMessageProcessor();

        // Some optimization
        \gc_enable();       // As the process never stops, the garbage collector will be usefull, you may need to call it manually sometimes for performance purpose
        \set_time_limit(0); // It's by default on most server for cli apps but better be sure of that fact
    }

    public function setMessageHandler($messageHandler)
    {
        if (!$messageHandler instanceof MessageHandlerInterface &&  !\is_string($messageHandler)) {
            throw new \InvalidArgumentException('The message handler must be an instance of MessageHandlerInterface or a string.');
        }
        if (\is_string($messageHandler)) {
            try {
                $reflection = new \ReflectionClass($messageHandler);
                if(!$reflection->implementsInterface('Nekland\Woketo\Message\MessageHandlerInterface')) {
                    throw new \InvalidArgumentException('The messageHandler must implement MessageHandlerInterface');
                }
            } catch (\ReflectionException $e) {
                throw new \InvalidArgumentException('The messageHandler must be a string representing a class.');
            }
        }
        $this->messageHandler = $messageHandler;
class Id
{
    public $id;

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

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
    }

    /**
     * Launch the websocket server.
     *
     * @throws \Exception
     */
    public function start()
    {
        if ($this->config['prod'] && \extension_loaded('xdebug')) {
            throw new \Exception('xdebug is enabled, it\'s a performance issue. Disable that extension or specify "prod" option to false.');
        }
        
        $this->loop = \React\EventLoop\Factory::create();
        $socket = new \React\Socket\Server($this->loop);

        if ($this->config['ssl']) {
            $socket = new \React\Socket\SecureServer($socket, $this->loop, array_merge([
                'local_cert' => $this->config['certFile'],
                'passphrase' => $this->config['passphrase'],
            ], $this->config['ssl_context_options']));
        }

        $socket->on('connection', function ($socketStream) {
            $this->onNewConnection($socketStream);
        });
        $socket->listen($this->port);

        $this->getLogger()->info('Listening on ' . $this->host . ':' . $this->port);

        $this->loop->run();
    }

    /**
     * @param ConnectionInterface $socketStream
     */
    private function onNewConnection(ConnectionInterface $socketStream)
    {
        $messageHandler = $this->messageHandler;
        if (\is_string($messageHandler)) {
            $messageHandler = new $messageHandler;
        }

        $connection = new Connection($socketStream, $messageHandler, $this->loop, $this->messageProcessor);
        $connection->setLogger($this->getLogger());
        $this->connections[] = $connection;
    }

    /**
     * Build the message processor with configuration
     */
    private function buildMessageProcessor()
    {
        $this->messageProcessor = new MessageProcessor(
            new FrameFactory($this->config['frame']),
            new MessageFactory($this->config['message'])
        );
        $this->messageProcessor->addHandler(new PingFrameHandler());
        $this->messageProcessor->addHandler(new CloseFrameHandler());
        $this->messageProcessor->addHandler(new WrongOpcodeHandler());
        $this->messageProcessor->addHandler(new RsvCheckFrameHandler());

        foreach ($this->config['messageHandlers'] as $handler) {
            if (!$handler instanceof MessageHandlerInterface) {
                throw new RuntimeException(sprintf('%s is not an instance of MessageHandlerInterface but must be !', get_class($handler)));
            }
        }
    }

    /**
     * Sets the configuration
     *
     * @param array $config
     */
    private function setConfig(array $config)
    {
        $this->config = \array_merge([
            'frame' => [],
            'message' => [],
            'messageHandlers' => [],
            'prod' => true,
            'ssl' => false,
            'certFile' => '',
            'passphrase' => '',
            'ssl_context' => [],
        ], $config);
    }

    /**
     * @return SimpleLogger|LoggerInterface
     */
    public function getLogger()
    {
        if (null === $this->logger) {
            return $this->logger = new SimpleLogger(!$this->config['prod']);
        }

        return $this->logger;
    }

    /**
     * Allows you to set a custom logger
     *
     * @param LoggerInterface $logger
     * @return WebSocketServer
     */
    public function setLogger(LoggerInterface $logger)
    {
        $this->logger = $logger;

        return $this;
    }
}


1		<?php
2
3		/**
4		* This file is a part of Woketo package.
5		*
6		* (c) Nekland <[email protected]>
7		*
8		* For the full license, take a look to the LICENSE file
9		* on the root directory of this project
10		*/
11
12		namespace Nekland\Woketo\Server;
13
14		use Nekland\Woketo\Exception\RuntimeException;
15		use Nekland\Woketo\Message\MessageHandlerInterface;
16		use Nekland\Woketo\Rfc6455\FrameFactory;
17		use Nekland\Woketo\Rfc6455\MessageFactory;
18		use Nekland\Woketo\Rfc6455\MessageHandler\CloseFrameHandler;
19		use Nekland\Woketo\Rfc6455\MessageHandler\RsvCheckFrameHandler;
20		use Nekland\Woketo\Rfc6455\MessageHandler\WrongOpcodeHandler;
21		use Nekland\Woketo\Rfc6455\MessageHandler\PingFrameHandler;
22		use Nekland\Woketo\Rfc6455\MessageProcessor;
23		use Nekland\Woketo\Rfc6455\ServerHandshake;
24		use Nekland\Woketo\Utils\SimpleLogger;
25		use Psr\Log\LoggerInterface;
26		use Psr\Log\LogLevel;
27		use React\EventLoop\LoopInterface;
28		use React\Socket\ConnectionInterface;
29
30		class WebSocketServer
31		{
32		/**
33		* @var int
34		*/
35		private $port;
36
37		/**
38		* @var string
39		*/
40		private $host;
41
42		/**
43		* @var ServerHandshake
44		*/
45		private $handshake;
46
47		/**
48		* @var MessageHandlerInterface
49		*/
50		private $messageHandler;
51
52		/**
53		* @var array
54		*/
55		private $connections;
56
57		/**
58		* @var LoopInterface
59		*/
60		private $loop;
61
62		/**
63		* @var MessageProcessor
64		*/
65		private $messageProcessor;
66
67		/**
68		* @var array
69		*/
70		private $config;
71
72		/**
73		* @var LoggerInterface
74		*/
75		private $logger;
76
77		/**
78		* @param int $port The number of the port to bind
79		* @param string $host The host to listen on (by default 127.0.0.1)
80		* @param array $config
81		*/
82	3	public function __construct($port, $host = '127.0.0.1', $config = [])
83		{
84	3	$this->setConfig($config);
85	3	$this->host = $host;
86	3	$this->port = $port;
87	3	$this->handshake = new ServerHandshake();
88	3	$this->connections = [];
89	3	$this->buildMessageProcessor();
90
91		// Some optimization
92	2	\gc_enable(); // As the process never stops, the garbage collector will be usefull, you may need to call it manually sometimes for performance purpose
93	2	\set_time_limit(0); // It's by default on most server for cli apps but better be sure of that fact
94	2	}
95
96		public function setMessageHandler($messageHandler)
97		{
98		if (!$messageHandler instanceof MessageHandlerInterface && !\is_string($messageHandler)) {
99		throw new \InvalidArgumentException('The message handler must be an instance of MessageHandlerInterface or a string.');
100		}
101		if (\is_string($messageHandler)) {
102		try {
103		$reflection = new \ReflectionClass($messageHandler);
104		if(!$reflection->implementsInterface('Nekland\Woketo\Message\MessageHandlerInterface')) {
105		throw new \InvalidArgumentException('The messageHandler must implement MessageHandlerInterface');
106		}
107		} catch (\ReflectionException $e) {
108		throw new \InvalidArgumentException('The messageHandler must be a string representing a class.');
109		}
110		}
111		$this->messageHandler = $messageHandler;
		0 ignored issues – show Documentation Bug introduced 2016-11-04 13:51 UTC by Report Bug Copy Issue Report It seems like `$messageHandler` can also be of type `string`. However, the property `$messageHandler` is declared as type `object<Nekland\Woketo\Me...essageHandlerInterface>`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
112		}
113
114		/**
115		* Launch the websocket server.
116		*
117		* @throws \Exception
118		*/
119		public function start()
120		{
121		if ($this->config['prod'] && \extension_loaded('xdebug')) {
122		throw new \Exception('xdebug is enabled, it\'s a performance issue. Disable that extension or specify "prod" option to false.');
123		}
124
125		$this->loop = \React\EventLoop\Factory::create();
126		$socket = new \React\Socket\Server($this->loop);
127
128		if ($this->config['ssl']) {
129		$socket = new \React\Socket\SecureServer($socket, $this->loop, array_merge([
130		'local_cert' => $this->config['certFile'],
131		'passphrase' => $this->config['passphrase'],
132		], $this->config['ssl_context_options']));
133		}
134
135		$socket->on('connection', function ($socketStream) {
136		$this->onNewConnection($socketStream);
137		});
138		$socket->listen($this->port);
139
140		$this->getLogger()->info('Listening on ' . $this->host . ':' . $this->port);
141
142		$this->loop->run();
143		}
144
145		/**
146		* @param ConnectionInterface $socketStream
147		*/
148		private function onNewConnection(ConnectionInterface $socketStream)
149		{
150		$messageHandler = $this->messageHandler;
151		if (\is_string($messageHandler)) {
152		$messageHandler = new $messageHandler;
153		}
154
155		$connection = new Connection($socketStream, $messageHandler, $this->loop, $this->messageProcessor);
156		$connection->setLogger($this->getLogger());
157		$this->connections[] = $connection;
158		}
159
160		/**
161		* Build the message processor with configuration
162		*/
163	3	private function buildMessageProcessor()
164		{
165	3	$this->messageProcessor = new MessageProcessor(
166	3	new FrameFactory($this->config['frame']),
167	3	new MessageFactory($this->config['message'])
168		);
169	3	$this->messageProcessor->addHandler(new PingFrameHandler());
170	3	$this->messageProcessor->addHandler(new CloseFrameHandler());
171	3	$this->messageProcessor->addHandler(new WrongOpcodeHandler());
172	3	$this->messageProcessor->addHandler(new RsvCheckFrameHandler());
173
174	3	foreach ($this->config['messageHandlers'] as $handler) {
175	1	if (!$handler instanceof MessageHandlerInterface) {
176	1	throw new RuntimeException(sprintf('%s is not an instance of MessageHandlerInterface but must be !', get_class($handler)));
177		}
178		}
179	2	}
180
181		/**
182		* Sets the configuration
183		*
184		* @param array $config
185		*/
186	3	private function setConfig(array $config)
187		{
188	3	$this->config = \array_merge([
189	3	'frame' => [],
190		'message' => [],
191		'messageHandlers' => [],
192		'prod' => true,
193		'ssl' => false,
194		'certFile' => '',
195		'passphrase' => '',
196		'ssl_context' => [],
197		], $config);
198	3	}
199
200		/**
201		* @return SimpleLogger\|LoggerInterface
202		*/
203		public function getLogger()
204		{
205		if (null === $this->logger) {
206		return $this->logger = new SimpleLogger(!$this->config['prod']);
207		}
208
209		return $this->logger;
210		}
211
212		/**
213		* Allows you to set a custom logger
214		*
215		* @param LoggerInterface $logger
216		* @return WebSocketServer
217		*/
218		public function setLogger(LoggerInterface $logger)
219		{
220		$this->logger = $logger;
221
222		return $this;
223		}
224		}
225

Nekland / Woketo

Pull Request — master (#101)

WebSocketServer::start() B

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