Connection::onRead() - Code Metrics - Inspection of "The AMQP Protocol implementation" - kakserpom/phpdaemon - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#286)

unknown

created 2018-01-22 14:53 UTC

Connection::onRead() D

↳ Parent: Connection

Complexity

Conditions	33
Paths	1

Size

Total Lines	182
Code Lines	114

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	33
eloc	114
nc	1
nop	0
dl	0
loc	182
rs	4.3465
c	0
b	0
f	0

How to fix Long Method Complexity

<?php

namespace PHPDaemon\Clients\AMQP;

use PHPDaemon\Clients\AMQP\Driver\ConnectionOptions;
use PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException;
use PHPDaemon\Clients\AMQP\Driver\Features;
use PHPDaemon\Clients\AMQP\Driver\PackageInfo;
use PHPDaemon\Clients\AMQP\Driver\Protocol\CommandInterface;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Parser\Frame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Parser\Frame as FrameParser;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Parser\Table as TableParser;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionCloseFrame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionOpenFrame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionOpenOkFrame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionStartFrame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionStartOkFrame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionTuneFrame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionTuneOkFrame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\HeartbeatFrame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\OutgoingFrame;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Serializer\Frame as FrameSerializer;
use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Serializer\Table as TableSerializer;
use PHPDaemon\Network\ClientConnection;
use PHPDaemon\Utils\Binary;

/**
 * Class Connection
 * @author Aleksey I. Kuleshov YOU GLOBAL LIMITED
 * @package PHPDaemon\Clients\AMQP
 */
class Connection extends ClientConnection implements CommandInterface
{

    /**
     * The AMQP protocol header is sent by the client before any frame-based
     * communication takes place.  It is the only data transferred that is not
     * a frame.
     */
    const PROTOCOL_HEADER = "AMQP\x00\x00\x09\x01";

    /**
     * The maximum number of channels.
     *
     * AMQP channel ID is 2 bytes, but zero is reserved for connection-level
     * communication.
     */
    const MAXIMUM_CHANNELS = 0xffff - 1;

    /**
     * The maximum frame size the client supports.
     *
     * Note: RabbitMQ's default is 0x20000 (128 KB), our limit is higher to
     * allow for some server-side configurability.
     */
    const MAXIMUM_FRAME_SIZE = 0x80000; // 512 KB

    /**
     * The broker sends channelMax of zero in the tune frame if it does not
     * impose a channel limit.
     */
    const UNLIMITED_CHANNELS = 0;

    /**
     * The broker sends frameMax of zero in the tune frame if it does not impose
     * a frame size limit.
     */
    const UNLIMITED_FRAME_SIZE = 0;

    /**
     * The broker sends a heartbeat of zero in the tune frame if it does not use
     * heartbeats.
     */
    const HEARTBEAT_DISABLED = 0;

    /**
     * Event raised when protocol handshake ready
     */
    const EVENT_ON_HANDSHAKE = 'event.amqp.connection.handshake';

    /**
     * Event raised when connection close frame incoming
     */

    const EVENT_ON_CONNECTION_CLOSE = 'event.amqp.connection.close';

    /**
     * @var FrameParser
     */
    protected $parser;

    /**
     * @var FrameSerializer
     */
    protected $serializer;

    /**
     * @var ConnectionOptions
     */
    protected $connectionOptions;

    /**
     * @var bool
     */
    protected $isHandshaked = false;

    /**
     * The broker's supported features.
     * @var Features
     */
    private $features;

    /**
     * @var int
     */
    private $maximumChannelCount;

    /**
     * @var int
     */
    private $maximumFrameSize;

    /**
     * @var array
     */
    private $channels = [];

    /**
     * @var int
     */
    private $nextChannelId = 1;

    /**
     * @var bool
     */
    private $debug = false;

    /**
     *
     */
    protected function init()
    {
        $this->parser = new FrameParser(new TableParser());
        $this->serializer = new FrameSerializer(new TableSerializer());

        $this->connectionOptions = new ConnectionOptions(
            $this->pool->config->host->value,
            $this->pool->config->port->value,
            $this->pool->config->username->value,
            $this->pool->config->password->value,
            $this->pool->config->vhost->value
        );

        $this->debug = isset($this->pool->config->debug);
    }

    /**
     *
     */
    public function onReady()
    {
        if ($this->isHandshaked) {
            parent::onReady();
        }

        $this->write(self::PROTOCOL_HEADER);

        parent::onReady();
    }

    /**
     *
     * @throws \PHPDaemon\Clients\AMQP\Driver\Protocol\Exception\AMQPProtocolException
     * @throws \PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException
     * @throws \InvalidArgumentException
     */
    protected function onRead()
    {
        if ($this->getInputLength() <= 0) {
            return;
        }
        // set busy for connection
        $this->busy = true;

        /**
         * 1) read Frame::HEADER_SIZE
         * 2) get payload length from header
         * 3) concatenate header and payload + 1 byte (for Constants::FRAME_END) into buffer
         * 4) parse buffer
         * 5) do stuff...
         * 6) if bev contains more data go to 1
         */
        frame:
        $header = $this->readExact(Frame::HEADER_SIZE);
        if ($header === false) {
            return;
        }
        $framePayloadSize = Binary::b2i(substr($header, Frame::HEADER_TYPE_SIZE + Frame::HEADER_CHANNEL_SIZE, Frame::HEADER_PAYLOAD_LENGTH_SIZE));


        $payload = $this->readExact($framePayloadSize + 1);
        if ($payload === false) {
            return;
        }
        $buffer = $header . $payload;

        $frame = $this->parser->feed($buffer);
        if ($frame === null) {
            return;
        }
        if ($this->debug) {
            $this->log(sprintf('[AMQP] %s packet received', get_class($frame)));
        }

        if (!$this->isHandshaked) {
            switch (true) {
                case $frame instanceof ConnectionStartFrame:
                    if ($frame->versionMajor !== 0 || $frame->versionMinor !== 9) {
                        throw AMQPConnectionException::handshakeFailed(
                            $this->connectionOptions,
                            sprintf(
                                'the broker reported an unexpected AMQP version (v%d.%d)',
                                $frame->versionMajor,
                                $frame->versionMinor
                            )
                        );
                    }
                    if (!preg_match('/\bAMQPLAIN\b/', $frame->mechanisms)) {
                        throw AMQPConnectionException::handshakeFailed(
                            $this->connectionOptions,
                            'the AMQPLAIN authentication mechanism is not supported'
                        );
                    }

                    $this->features = new Features();
                    $properties = $frame->serverProperties;
                    if (isset($properties['product']) && 'RabbitMQ' === $properties['product']) {
                        $this->features->qosSizeLimits = false;
                    }
                    if (array_key_exists('capabilities', $properties)) {
                        if (array_key_exists('per_consumer_qos', $properties['capabilities'])) {
                            $this->features->perConsumerQos = (bool)$properties['capabilities']['per_consumer_qos'];
                        }
                        if (array_key_exists('exchange_exchange_bindings', $properties['capabilities'])) {
                            $this->features->exchangeToExchangeBindings = (bool)$properties['capabilities']['exchange_exchange_bindings'];

                        }
                    }

                    // Serialize credentials in "AMQPLAIN" format, which is essentially an
                    // AMQP table without the 4-byte size header ...
                    $user = $this->connectionOptions->getUsername();
                    $pass = $this->connectionOptions->getPassword();

                    $credentials = "\x05LOGINS" . pack('N', strlen($user)) . $user
                        . "\x08PASSWORDS" . pack('N', strlen($pass)) . $pass;

                    $this->command(ConnectionStartOkFrame::create(
                        [
                            'product' => $this->connectionOptions->getProductName(),
                            'version' => $this->connectionOptions->getProductVersion(),
                            'platform' => PackageInfo::AMQP_PLATFORM,
                            'copyright' => PackageInfo::AMQP_COPYRIGHT,
                            'information' => PackageInfo::AMQP_INFORMATION,

                        ],
                        'AMQPLAIN',
                        $credentials
                    ));
                    break;
                case $frame instanceof ConnectionTuneFrame:
                    $this->maximumChannelCount = self::MAXIMUM_CHANNELS;
                    if ($frame->channelMax === self::UNLIMITED_CHANNELS) {
                        $this->maximumChannelCount = self::MAXIMUM_CHANNELS;
                    } elseif ($frame->channelMax < self::MAXIMUM_CHANNELS) {
                        $this->maximumChannelCount = $frame->channelMax;
                    }

                    $this->maximumFrameSize = self::MAXIMUM_FRAME_SIZE;
                    if ($frame->frameMax === self::UNLIMITED_FRAME_SIZE) {
                        $this->maximumFrameSize = self::MAXIMUM_FRAME_SIZE;
                    } elseif ($frame->frameMax < self::MAXIMUM_FRAME_SIZE) {
                        $this->maximumFrameSize = $frame->frameMax;
                    }

                    $heartbeatInterval = 0;
                    if (!self::HEARTBEAT_DISABLED) {
                        $heartbeatInterval = $this->connectionOptions->getHeartbeatInterval();
                        if (null === $heartbeatInterval) {
                            $heartbeatInterval = $frame->heartbeat;
                        } elseif ($frame->heartbeat < $heartbeatInterval) {
                            $heartbeatInterval = $frame->heartbeat;
                        }
                    }

                    $outputFrame = ConnectionTuneOkFrame::create(
                        $this->maximumChannelCount,
                        $this->maximumFrameSize,
                        $heartbeatInterval
                    );

                    if ($outputFrame->heartbeat > 0) {
                        /**
                         * We need to set timeout value = ConnectionTuneFrame::heartbeat + 5 sec
                         */
                        $timeout = $outputFrame->heartbeat + 5;
                        $this->setTimeout($timeout);
                        $this->connectionOptions->setHeartbeatInterval($outputFrame->heartbeat);
                        $this->connectionOptions->setConnectionTimeout($timeout);
                    }

                    $this->command($outputFrame);

                    $outputFrame = ConnectionOpenFrame::create(
                        $this->connectionOptions->getVhost()
                    );
                    $this->command($outputFrame);
                    break;

                case $frame instanceof ConnectionOpenOkFrame:
                    $this->isHandshaked = true;
                    $this->openChannel(function ($channel) {
                        $this->trigger(self::EVENT_ON_HANDSHAKE, $channel);
                    });
                    break;
            }

            $this->checkFree();
            return;
        }

        switch (true) {
            case $frame instanceof HeartbeatFrame:
                $this->command($frame);
                break;
            case $frame instanceof ConnectionCloseFrame:
                $this->trigger(self::EVENT_ON_CONNECTION_CLOSE, $frame->replyCode, $frame->replyText);
                $this->close();
                return;
                break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
            default:
                if (isset($frame->frameChannelId)
                    && $frame->frameChannelId > 0
                    && array_key_exists($frame->frameChannelId, $this->channels)) {
                    /** @var Channel $channel */
                    $channel = $this->channels[$frame->frameChannelId];
                    $channel->trigger(get_class($frame), $frame);
                    break; // exit
                }

                $this->trigger(get_class($frame), $frame);
                break;
        }

        if ($this->bev && $this->getInputLength() > 0) {
            goto frame;
        }

        $this->checkFree();
    }

    /**
     * @param int $id
     * @param callable $callback
     * @throws \InvalidArgumentException
     * @throws \PHPDaemon\Clients\AMQP\Driver\Protocol\Exception\AMQPProtocolException
     * @throws \PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException
     */
    public function getChannel(callable $callback, $id = 1)
    {
        if (count($this->channels) === 0) {
            $this->openChannel($callback);
            return;
        }

        if (is_callable($callback)) {
            $callback($this->channels[$id]);
        }
    }

    /**
     * @param callable|null $callback
     * @throws \InvalidArgumentException
     * @throws \PHPDaemon\Clients\AMQP\Driver\Protocol\Exception\AMQPProtocolException
     * @throws \PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException
     */
    public function openChannel(callable $callback = null)
    {
        new Channel($this, $callback);
    }

    /**
     * @return int
     * @throws \PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException
     */
    public function findChannelId()
    {
        // first check in range [next, max] ...
        for (

            $channelId = $this->nextChannelId;
            $channelId <= $this->maximumChannelCount;
            ++$channelId
        ) {
            if (!isset($this->channels[$channelId])) {
                $this->nextChannelId = $channelId + 1;

                return $channelId;
            }
        }

        // then check in range [min, next) ...
        for (

            $channelId = 1;
            $channelId < $this->nextChannelId;
            ++$channelId
        ) {
            if (!isset($this->channels[$channelId])) {
                $this->nextChannelId = $channelId + 1;

                return $channelId;
            }
        }

        throw new AMQPConnectionException('No available channels');
    }

    /**
     * @param OutgoingFrame $frame
     * @param callable|null $callback
     * @return bool
     * @throws \PHPDaemon\Clients\AMQP\Driver\Protocol\Exception\AMQPProtocolException
     * @throws \InvalidArgumentException
     */
    public function command(OutgoingFrame $frame, callable $callback = null)
    {
        if ($callback) {
            $this->onResponse($callback);
        }
        $serializedFrame = $this->serializer->serialize($frame);
        return $this->write($serializedFrame);
    }


    public function addChannel($id, Channel $channel)
    {
        $this->channels[$id] = $channel;
        $this->nextChannelId = max(array_keys($this->channels)) + 1;
        return $this;
    }

    /**
     * @return Features
     */
    public function getFeatures()
    {
        return $this->features;
    }

    /**
     * @return ConnectionOptions
     */
    public function getConnectionOptions()
    {
        return $this->connectionOptions;
    }

    /**
     * @return int
     */
    public function getMaximumChannelCount()
    {
        return $this->maximumChannelCount;
    }

    /**
     * @return int
     */
    public function getMaximumFrameSize()
    {
        return $this->maximumFrameSize;
    }

    /**
     * @return bool
     */
    public function isHandshaked()
    {
        return $this->isHandshaked;
    }
}


1		<?php
2
3		namespace PHPDaemon\Clients\AMQP;
4
5		use PHPDaemon\Clients\AMQP\Driver\ConnectionOptions;
6		use PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException;
7		use PHPDaemon\Clients\AMQP\Driver\Features;
8		use PHPDaemon\Clients\AMQP\Driver\PackageInfo;
9		use PHPDaemon\Clients\AMQP\Driver\Protocol\CommandInterface;
10		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Parser\Frame;
11		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Parser\Frame as FrameParser;
12		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Parser\Table as TableParser;
13		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionCloseFrame;
14		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionOpenFrame;
15		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionOpenOkFrame;
16		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionStartFrame;
17		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionStartOkFrame;
18		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionTuneFrame;
19		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\Connection\ConnectionTuneOkFrame;
20		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\HeartbeatFrame;
21		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Protocol\OutgoingFrame;
22		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Serializer\Frame as FrameSerializer;
23		use PHPDaemon\Clients\AMQP\Driver\Protocol\v091\Serializer\Table as TableSerializer;
24		use PHPDaemon\Network\ClientConnection;
25		use PHPDaemon\Utils\Binary;
26
27		/**
28		* Class Connection
29		* @author Aleksey I. Kuleshov YOU GLOBAL LIMITED
30		* @package PHPDaemon\Clients\AMQP
31		*/
32		class Connection extends ClientConnection implements CommandInterface
33		{
34
35		/**
36		* The AMQP protocol header is sent by the client before any frame-based
37		* communication takes place. It is the only data transferred that is not
38		* a frame.
39		*/
40		const PROTOCOL_HEADER = "AMQP\x00\x00\x09\x01";
41
42		/**
43		* The maximum number of channels.
44		*
45		* AMQP channel ID is 2 bytes, but zero is reserved for connection-level
46		* communication.
47		*/
48		const MAXIMUM_CHANNELS = 0xffff - 1;
49
50		/**
51		* The maximum frame size the client supports.
52		*
53		* Note: RabbitMQ's default is 0x20000 (128 KB), our limit is higher to
54		* allow for some server-side configurability.
55		*/
56		const MAXIMUM_FRAME_SIZE = 0x80000; // 512 KB
57
58		/**
59		* The broker sends channelMax of zero in the tune frame if it does not
60		* impose a channel limit.
61		*/
62		const UNLIMITED_CHANNELS = 0;
63
64		/**
65		* The broker sends frameMax of zero in the tune frame if it does not impose
66		* a frame size limit.
67		*/
68		const UNLIMITED_FRAME_SIZE = 0;
69
70		/**
71		* The broker sends a heartbeat of zero in the tune frame if it does not use
72		* heartbeats.
73		*/
74		const HEARTBEAT_DISABLED = 0;
75
76		/**
77		* Event raised when protocol handshake ready
78		*/
79		const EVENT_ON_HANDSHAKE = 'event.amqp.connection.handshake';
80
81		/**
82		* Event raised when connection close frame incoming
83		*/
84
85		const EVENT_ON_CONNECTION_CLOSE = 'event.amqp.connection.close';
86
87		/**
88		* @var FrameParser
89		*/
90		protected $parser;
91
92		/**
93		* @var FrameSerializer
94		*/
95		protected $serializer;
96
97		/**
98		* @var ConnectionOptions
99		*/
100		protected $connectionOptions;
101
102		/**
103		* @var bool
104		*/
105		protected $isHandshaked = false;
106
107		/**
108		* The broker's supported features.
109		* @var Features
110		*/
111		private $features;
112
113		/**
114		* @var int
115		*/
116		private $maximumChannelCount;
117
118		/**
119		* @var int
120		*/
121		private $maximumFrameSize;
122
123		/**
124		* @var array
125		*/
126		private $channels = [];
127
128		/**
129		* @var int
130		*/
131		private $nextChannelId = 1;
132
133		/**
134		* @var bool
135		*/
136		private $debug = false;
137
138		/**
139		*
140		*/
141		protected function init()
142		{
143		$this->parser = new FrameParser(new TableParser());
144		$this->serializer = new FrameSerializer(new TableSerializer());
145
146		$this->connectionOptions = new ConnectionOptions(
147		$this->pool->config->host->value,
148		$this->pool->config->port->value,
149		$this->pool->config->username->value,
150		$this->pool->config->password->value,
151		$this->pool->config->vhost->value
152		);
153
154		$this->debug = isset($this->pool->config->debug);
155		}
156
157		/**
158		*
159		*/
160		public function onReady()
161		{
162		if ($this->isHandshaked) {
163		parent::onReady();
164		}
165
166		$this->write(self::PROTOCOL_HEADER);
167
168		parent::onReady();
169		}
170
171		/**
172		*
173		* @throws \PHPDaemon\Clients\AMQP\Driver\Protocol\Exception\AMQPProtocolException
174		* @throws \PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException
175		* @throws \InvalidArgumentException
176		*/
177		protected function onRead()
178		{
179		if ($this->getInputLength() <= 0) {
180		return;
181		}
182		// set busy for connection
183		$this->busy = true;
184
185		/**
186		* 1) read Frame::HEADER_SIZE
187		* 2) get payload length from header
188		* 3) concatenate header and payload + 1 byte (for Constants::FRAME_END) into buffer
189		* 4) parse buffer
190		* 5) do stuff...
191		* 6) if bev contains more data go to 1
192		*/
193		frame:
194		$header = $this->readExact(Frame::HEADER_SIZE);
195		if ($header === false) {
196		return;
197		}
198		$framePayloadSize = Binary::b2i(substr($header, Frame::HEADER_TYPE_SIZE + Frame::HEADER_CHANNEL_SIZE, Frame::HEADER_PAYLOAD_LENGTH_SIZE));
		0 ignored issues – show Coding Style introduced 2018-01-21 18:23 UTC by Report Bug Copy Issue Report This line exceeds maximum limit of 120 characters; contains 146 characters Overly long lines are hard to read on any screen. Most code styles therefor impose a maximum limit on the number of characters in a line. Loading history...
199
200		$payload = $this->readExact($framePayloadSize + 1);
201		if ($payload === false) {
202		return;
203		}
204		$buffer = $header . $payload;
205
206		$frame = $this->parser->feed($buffer);
207		if ($frame === null) {
208		return;
209		}
210		if ($this->debug) {
211		$this->log(sprintf('[AMQP] %s packet received', get_class($frame)));
212		}
213
214		if (!$this->isHandshaked) {
215		switch (true) {
216		case $frame instanceof ConnectionStartFrame:
217		if ($frame->versionMajor !== 0 \|\| $frame->versionMinor !== 9) {
218		throw AMQPConnectionException::handshakeFailed(
219		$this->connectionOptions,
220		sprintf(
221		'the broker reported an unexpected AMQP version (v%d.%d)',
222		$frame->versionMajor,
223		$frame->versionMinor
224		)
225		);
226		}
227		if (!preg_match('/\bAMQPLAIN\b/', $frame->mechanisms)) {
228		throw AMQPConnectionException::handshakeFailed(
229		$this->connectionOptions,
230		'the AMQPLAIN authentication mechanism is not supported'
231		);
232		}
233
234		$this->features = new Features();
235		$properties = $frame->serverProperties;
236		if (isset($properties['product']) && 'RabbitMQ' === $properties['product']) {
237		$this->features->qosSizeLimits = false;
238		}
239		if (array_key_exists('capabilities', $properties)) {
240		if (array_key_exists('per_consumer_qos', $properties['capabilities'])) {
241		$this->features->perConsumerQos = (bool)$properties['capabilities']['per_consumer_qos'];
242		}
243		if (array_key_exists('exchange_exchange_bindings', $properties['capabilities'])) {
244		$this->features->exchangeToExchangeBindings = (bool)$properties['capabilities']['exchange_exchange_bindings'];
		0 ignored issues – show Coding Style introduced 2018-01-21 18:23 UTC by Report Bug Copy Issue Report This line exceeds maximum limit of 120 characters; contains 138 characters Overly long lines are hard to read on any screen. Most code styles therefor impose a maximum limit on the number of characters in a line. Loading history...
245		}
246		}
247
248		// Serialize credentials in "AMQPLAIN" format, which is essentially an
249		// AMQP table without the 4-byte size header ...
250		$user = $this->connectionOptions->getUsername();
251		$pass = $this->connectionOptions->getPassword();
252
253		$credentials = "\x05LOGINS" . pack('N', strlen($user)) . $user
254		. "\x08PASSWORDS" . pack('N', strlen($pass)) . $pass;
255
256		$this->command(ConnectionStartOkFrame::create(
257		[
258		'product' => $this->connectionOptions->getProductName(),
259		'version' => $this->connectionOptions->getProductVersion(),
260		'platform' => PackageInfo::AMQP_PLATFORM,
261		'copyright' => PackageInfo::AMQP_COPYRIGHT,
262		'information' => PackageInfo::AMQP_INFORMATION,
263
264		],
265		'AMQPLAIN',
266		$credentials
267		));
268		break;
269		case $frame instanceof ConnectionTuneFrame:
270		$this->maximumChannelCount = self::MAXIMUM_CHANNELS;
271		if ($frame->channelMax === self::UNLIMITED_CHANNELS) {
272		$this->maximumChannelCount = self::MAXIMUM_CHANNELS;
273		} elseif ($frame->channelMax < self::MAXIMUM_CHANNELS) {
274		$this->maximumChannelCount = $frame->channelMax;
275		}
276
277		$this->maximumFrameSize = self::MAXIMUM_FRAME_SIZE;
278		if ($frame->frameMax === self::UNLIMITED_FRAME_SIZE) {
279		$this->maximumFrameSize = self::MAXIMUM_FRAME_SIZE;
280		} elseif ($frame->frameMax < self::MAXIMUM_FRAME_SIZE) {
281		$this->maximumFrameSize = $frame->frameMax;
282		}
283
284		$heartbeatInterval = 0;
285		if (!self::HEARTBEAT_DISABLED) {
286		$heartbeatInterval = $this->connectionOptions->getHeartbeatInterval();
287		if (null === $heartbeatInterval) {
288		$heartbeatInterval = $frame->heartbeat;
289		} elseif ($frame->heartbeat < $heartbeatInterval) {
290		$heartbeatInterval = $frame->heartbeat;
291		}
292		}
293
294		$outputFrame = ConnectionTuneOkFrame::create(
295		$this->maximumChannelCount,
296		$this->maximumFrameSize,
297		$heartbeatInterval
298		);
299
300		if ($outputFrame->heartbeat > 0) {
301		/**
302		* We need to set timeout value = ConnectionTuneFrame::heartbeat + 5 sec
303		*/
304		$timeout = $outputFrame->heartbeat + 5;
305		$this->setTimeout($timeout);
306		$this->connectionOptions->setHeartbeatInterval($outputFrame->heartbeat);
307		$this->connectionOptions->setConnectionTimeout($timeout);
308		}
309
310		$this->command($outputFrame);
311
312		$outputFrame = ConnectionOpenFrame::create(
313		$this->connectionOptions->getVhost()
314		);
315		$this->command($outputFrame);
316		break;
317
318		case $frame instanceof ConnectionOpenOkFrame:
319		$this->isHandshaked = true;
320		$this->openChannel(function ($channel) {
321		$this->trigger(self::EVENT_ON_HANDSHAKE, $channel);
322		});
323		break;
324		}
325
326		$this->checkFree();
327		return;
328		}
329
330		switch (true) {
331		case $frame instanceof HeartbeatFrame:
332		$this->command($frame);
333		break;
334		case $frame instanceof ConnectionCloseFrame:
335		$this->trigger(self::EVENT_ON_CONNECTION_CLOSE, $frame->replyCode, $frame->replyText);
336		$this->close();
337		return;
338		break;
		0 ignored issues – show Unused Code introduced 2018-01-21 18:23 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history...
339		default:
340		if (isset($frame->frameChannelId)
341		&& $frame->frameChannelId > 0
342		&& array_key_exists($frame->frameChannelId, $this->channels)) {
343		/** @var Channel $channel */
344		$channel = $this->channels[$frame->frameChannelId];
345		$channel->trigger(get_class($frame), $frame);
346		break; // exit
347		}
348
349		$this->trigger(get_class($frame), $frame);
350		break;
351		}
352
353		if ($this->bev && $this->getInputLength() > 0) {
354		goto frame;
355		}
356
357		$this->checkFree();
358		}
359
360		/**
361		* @param int $id
362		* @param callable $callback
363		* @throws \InvalidArgumentException
364		* @throws \PHPDaemon\Clients\AMQP\Driver\Protocol\Exception\AMQPProtocolException
365		* @throws \PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException
366		*/
367		public function getChannel(callable $callback, $id = 1)
368		{
369		if (count($this->channels) === 0) {
370		$this->openChannel($callback);
371		return;
372		}
373
374		if (is_callable($callback)) {
375		$callback($this->channels[$id]);
376		}
377		}
378
379		/**
380		* @param callable\|null $callback
381		* @throws \InvalidArgumentException
382		* @throws \PHPDaemon\Clients\AMQP\Driver\Protocol\Exception\AMQPProtocolException
383		* @throws \PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException
384		*/
385		public function openChannel(callable $callback = null)
386		{
387		new Channel($this, $callback);
388		}
389
390		/**
391		* @return int
392		* @throws \PHPDaemon\Clients\AMQP\Driver\Exception\AMQPConnectionException
393		*/
394		public function findChannelId()
395		{
396		// first check in range [next, max] ...
397	View Code Duplication	for (
		0 ignored issues – show Duplication introduced 2018-01-21 18:23 UTC by Report Bug Copy Issue Report This code seems to be duplicated across 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...
398		$channelId = $this->nextChannelId;
399		$channelId <= $this->maximumChannelCount;
400		++$channelId
401		) {
402		if (!isset($this->channels[$channelId])) {
403		$this->nextChannelId = $channelId + 1;
404
405		return $channelId;
406		}
407		}
408
409		// then check in range [min, next) ...
410	View Code Duplication	for (
		0 ignored issues – show Duplication introduced 2018-01-21 18:23 UTC by Report Bug Copy Issue Report This code seems to be duplicated across 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...
411		$channelId = 1;
412		$channelId < $this->nextChannelId;
413		++$channelId
414		) {
415		if (!isset($this->channels[$channelId])) {
416		$this->nextChannelId = $channelId + 1;
417
418		return $channelId;
419		}
420		}
421
422		throw new AMQPConnectionException('No available channels');
423		}
424
425		/**
426		* @param OutgoingFrame $frame
427		* @param callable\|null $callback
428		* @return bool
429		* @throws \PHPDaemon\Clients\AMQP\Driver\Protocol\Exception\AMQPProtocolException
430		* @throws \InvalidArgumentException
431		*/
432		public function command(OutgoingFrame $frame, callable $callback = null)
433		{
434		if ($callback) {
435		$this->onResponse($callback);
436		}
437		$serializedFrame = $this->serializer->serialize($frame);
438		return $this->write($serializedFrame);
439		}
440
441
442		public function addChannel($id, Channel $channel)
443		{
444		$this->channels[$id] = $channel;
445		$this->nextChannelId = max(array_keys($this->channels)) + 1;
446		return $this;
447		}
448
449		/**
450		* @return Features
451		*/
452		public function getFeatures()
453		{
454		return $this->features;
455		}
456
457		/**
458		* @return ConnectionOptions
459		*/
460		public function getConnectionOptions()
461		{
462		return $this->connectionOptions;
463		}
464
465		/**
466		* @return int
467		*/
468		public function getMaximumChannelCount()
469		{
470		return $this->maximumChannelCount;
471		}
472
473		/**
474		* @return int
475		*/
476		public function getMaximumFrameSize()
477		{
478		return $this->maximumFrameSize;
479		}
480
481		/**
482		* @return bool
483		*/
484		public function isHandshaked()
485		{
486		return $this->isHandshaked;
487		}
488		}
489

kakserpom / phpdaemon

Pull Request — master (#286)

Connection::onRead() D

Complexity

Size

Duplication

Importance

How to fix Long Method Complexity

Long Method

Duplication Side-by-Side

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