Swift_Transport_StreamBuffer::readLine() - Code Metrics - Inspection of "[~]: add some more TODO-comments" - voku/swiftmailer - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — 5.x ( 4bb56c...2a7c65 )

by Lars

created 2017-05-28 11:13 UTC

Swift_Transport_StreamBuffer::readLine() B

↳ Parent: Swift_Transport_StreamBuffer

Complexity

Conditions	5
Paths	4

Size

Total Lines	21
Code Lines	12

Duplication

Lines	21
Ratio	100 %

Code Coverage

Tests	11
CRAP Score	5.0909

Importance

Changes

Metric	Value
cc	5
eloc	12
nc	4
nop	1
dl	21
loc	21
ccs	11
cts	13
cp	0.8462
crap	5.0909
rs	8.7624
c	0
b	0
f	0

<?php

/*
 * This file is part of SwiftMailer.
 * (c) 2004-2009 Chris Corbyn
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * A generic IoBuffer implementation supporting remote sockets and local processes.
 *
 * @author Chris Corbyn
 */
class Swift_Transport_StreamBuffer extends Swift_ByteStream_AbstractFilterableInputStream implements Swift_Transport_IoBuffer
namespace YourVendor;

class YourClass { }
{
    /**
     * A primary socket
     *
     * @var resource
     */
    private $_stream;

    /**
     * The input stream
     */
    private $_in;

    /**
     * The output stream
     */
    private $_out;

    /**
     * Buffer initialization parameters
     */
    private $_params = array();

    /**
     * The ReplacementFilterFactory
     *
     * @var Swift_ReplacementFilterFactory
     */
    private $_replacementFactory;

    /**
     * Translations performed on data being streamed into the buffer
     *
     * @var array
     */
    private $_translations = array();

    /**
     * Create a new StreamBuffer using $replacementFactory for transformations.
     *
     * @param Swift_ReplacementFilterFactory $replacementFactory
     */
    public function __construct(Swift_ReplacementFilterFactory $replacementFactory)
    {
        $this->_replacementFactory = $replacementFactory;
    }

    /**
     * Perform any initialization needed, using the given $params.
     *
     * Parameters will vary depending upon the type of IoBuffer used.
     *
     * @param array $params
     */
    public function initialize(array $params)
    {
        $this->_params = $params;
        switch ($params['type']) {
            case self::TYPE_PROCESS:
                $this->_establishProcessConnection();
                break;
            case self::TYPE_SOCKET:
            default:
                $this->_establishSocketConnection();
                break;
        }
    }

    /**
     * Set an individual param on the buffer (e.g. switching to SSL).
     *
     * @param string $param
     * @param integer  $value
     */
    public function setParam($param, $value)
    {
        if (isset($this->_stream)) {
            switch ($param) {
                case 'timeout':
                    if ($this->_stream) {
                        stream_set_timeout($this->_stream, $value);
                    }
                    break;

                case 'blocking':
                    if ($this->_stream) {
                        stream_set_blocking($this->_stream, 1);
                    }

            }
        }
        $this->_params[$param] = $value;
    }

    /**
     * @return mixed <p>Return <strong>true</strong> on success, <strong>false</strong> if negotiation has failed or <strong>0</strong> if there isn't enough data and you should try again.</p>
     */
    public function startTLS()
    {
        return stream_socket_enable_crypto($this->_stream, true, STREAM_CRYPTO_METHOD_TLS_CLIENT);
    }

    /**
     * Perform any shutdown logic needed.
     */
    public function terminate()
    {
        if (isset($this->_stream)) {
            switch ($this->_params['type']) {
                case self::TYPE_PROCESS:
                    fclose($this->_in);
                    fclose($this->_out);
                    proc_close($this->_stream);
                    break;
                case self::TYPE_SOCKET:
                default:
                    fclose($this->_stream);
                    break;
            }
        }
        $this->_stream = null;
        $this->_out = null;
        $this->_in = null;
    }

    /**
     * Set an array of string replacements which should be made on data written
     * to the buffer.
     *
     * This could replace LF with CRLF for example.
     *
     * @param string[] $replacements
     */
    public function setWriteTranslations(array $replacements)
    {
        foreach ($this->_translations as $search => $replace) {
            if (!isset($replacements[$search])) {
                $this->removeFilter($search);
                unset($this->_translations[$search]);
            }
        }

        foreach ($replacements as $search => $replace) {
            if (!isset($this->_translations[$search])) {
                $this->addFilter(
                    $this->_replacementFactory->createFilter($search, $replace),
                    $search
                );
                $this->_translations[$search] = true;
            }
        }
    }

    /**
     * Get a line of output (including any CRLF).
     *
     * The $sequence number comes from any writes and may or may not be used
     * depending upon the implementation.
     *
     * @param int $sequence of last write to scan from
     *
     * @throws Swift_IoException
     *
     * @return string
     */
    public function readLine($sequence)

    {
        if (
            !isset($this->_out)
            ||
            feof($this->_out)
        ) {
          // TODO?
          return;
        }

        $line = fgets($this->_out);
        if (!$line) {
            $metas = stream_get_meta_data($this->_out);
            if ($metas['timed_out']) {
                throw new Swift_IoException('Connection to ' . $this->_getReadConnectionDescription() . ' Timed Out');
            }
        }

        return $line;
    }

    /**
     * Reads $length bytes from the stream into a string and moves the pointer
     * through the stream by $length.
     *
     * If less bytes exist than are requested the remaining bytes are given instead.
     * If no bytes are remaining at all, boolean false is returned.
     *
     * @param int $length
     *
     * @throws Swift_IoException
     *
     * @return string|null
     */
    public function read($length)

    {
        if (
            !isset($this->_out)
            ||
            feof($this->_out)
        ) {
            // TODO?
            return;
        }

        $ret = fread($this->_out, $length);
        if (!$ret) {
            $metas = stream_get_meta_data($this->_out);
            if ($metas['timed_out']) {
                throw new Swift_IoException(
                    'Connection to ' . $this->_getReadConnectionDescription() . ' Timed Out'
                );
            }
        }

        return $ret;
    }

    /**
     * WARNING: Not implemented
     *
     * @param int $byteOffset
     */
    public function setReadPointer($byteOffset)
    {
    }

    /** Flush the stream contents */
    protected function _flush()
    {
        if (isset($this->_in)) {
            fflush($this->_in);
        }
    }

    /**
     * Write this bytes to the stream
     *
     * @param string $bytes
     *
     * @return int
     *
     * @throws Swift_IoException
     */
    protected function _commit($bytes)
    {
        if (!isset($this->_in)) {
            // TODO?
            return;
        }

        $bytesToWrite = strlen($bytes);
        $totalBytesWritten = 0;

        while ($totalBytesWritten < $bytesToWrite) {
            $bytesWritten = fwrite($this->_in, substr($bytes, $totalBytesWritten));
            if (false === $bytesWritten || 0 === $bytesWritten) {
                throw new Swift_IoException(
                    'Connection to ' . $this->_getReadConnectionDescription() . ' has gone away'
                );
            }

            $totalBytesWritten += $bytesWritten;
        }

        if ($totalBytesWritten > 0) {
            return ++$this->_sequence;
        }

        // TODO?
        return;
    }

    /**
     * Establishes a connection to a remote server.
     *
     * @throws Swift_TransportException
     */
    private function _establishSocketConnection()
    {
        // set default "php"-options for "stream_context_create"
        // and overwrite it with the "user"-options
        $options = stream_context_get_options(stream_context_get_default());

        $host = $this->_params['host'];
        if (!empty($this->_params['protocol'])) {

            $host = $this->_params['protocol'] . '://' . $host;
        }

        $timeout = 15;
        if (!empty($this->_params['timeout'])) {
            $timeout = $this->_params['timeout'];
        }

        if (!empty($this->_params['sourceIp'])) {
            $options['socket']['bindto'] = $this->_params['sourceIp'] . ':0';
        }

        if (!empty($this->_params['verifySsl'])) {

            $options = array_replace_recursive($options, $this->_params['verifySsl']);
        }

        if (!empty($this->_params['stream_context_options'])) {

            $options = array_replace_recursive($options, $this->_params['stream_context_options']);
        }

        $streamContext = stream_context_create($options);
        /** @noinspection PhpUsageOfSilenceOperatorInspection */
        $this->_stream = @stream_socket_client($host . ':' . $this->_params['port'], $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $streamContext);

        if (false === $this->_stream) {
            throw new Swift_TransportException('Connection could not be established with host ' . $this->_params['host'] . ' [' . $errstr . ' #' . $errno . ']');
        }

        if (!empty($this->_params['blocking'])) {
            stream_set_blocking($this->_stream, 1);
        } else {
            stream_set_blocking($this->_stream, 0);
        }

        stream_set_timeout($this->_stream, $timeout);
        $this->_in = &$this->_stream;
        $this->_out = &$this->_stream;
    }

    /**
     * Opens a process for input/output.
     */
    private function _establishProcessConnection()
    {
        $command = $this->_params['command'];
        $descriptorSpec = array(
            0 => array('pipe', 'r'),
            1 => array('pipe', 'w'),
            2 => array('pipe', 'w'),
        );

        $pipes = array();
        $this->_stream = proc_open($command, $descriptorSpec, $pipes);
        stream_set_blocking($pipes[2], 0);

        $err = stream_get_contents($pipes[2]);
        if ($err) {
            throw new Swift_TransportException('Process could not be started [' . $err . ']');
        }

        $this->_in = &$pipes[0];
        $this->_out = &$pipes[1];
    }

    /**
     * @return string
     */
    private function _getReadConnectionDescription()
    {
        switch ($this->_params['type']) {
            case self::TYPE_PROCESS:
                return 'Process ' . $this->_params['command'];
                break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}

            case self::TYPE_SOCKET:
            default:
                $host = $this->_params['host'];
                if (!empty($this->_params['protocol'])) {

                    $host = $this->_params['protocol'] . '://' . $host;
                }
                $host .= ':' . $this->_params['port'];

                return $host;
                break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
        }
    }
}


1			<?php
2
3			/*
4			* This file is part of SwiftMailer.
5			* (c) 2004-2009 Chris Corbyn
6			*
7			* For the full copyright and license information, please view the LICENSE
8			* file that was distributed with this source code.
9			*/
10
11			/**
12			* A generic IoBuffer implementation supporting remote sockets and local processes.
13			*
14			* @author Chris Corbyn
15			*/
16			class Swift_Transport_StreamBuffer extends Swift_ByteStream_AbstractFilterableInputStream implements Swift_Transport_IoBuffer
			0 ignored issues – show Coding Style Compatibility introduced 2015-11-22 11:38 UTC by Report Bug Copy Issue Report PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions. You can fix this by adding a namespace to your class: namespace YourVendor; class YourClass { } When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries. Loading history...
17			{
18			/**
19			* A primary socket
20			*
21			* @var resource
22			*/
23			private $_stream;
24
25			/**
26			* The input stream
27			*/
28			private $_in;
29
30			/**
31			* The output stream
32			*/
33			private $_out;
34
35			/**
36			* Buffer initialization parameters
37			*/
38			private $_params = array();
39
40			/**
41			* The ReplacementFilterFactory
42			*
43			* @var Swift_ReplacementFilterFactory
44			*/
45			private $_replacementFactory;
46
47			/**
48			* Translations performed on data being streamed into the buffer
49			*
50			* @var array
51			*/
52			private $_translations = array();
53
54			/**
55			* Create a new StreamBuffer using $replacementFactory for transformations.
56			*
57			* @param Swift_ReplacementFilterFactory $replacementFactory
58			*/
59	8		public function __construct(Swift_ReplacementFilterFactory $replacementFactory)
60			{
61	8		$this->_replacementFactory = $replacementFactory;
62	8		}
63
64			/**
65			* Perform any initialization needed, using the given $params.
66			*
67			* Parameters will vary depending upon the type of IoBuffer used.
68			*
69			* @param array $params
70			*/
71	5		public function initialize(array $params)
72			{
73	5		$this->_params = $params;
74	5		switch ($params['type']) {
75	5		case self::TYPE_PROCESS:
76			$this->_establishProcessConnection();
77			break;
78	5		case self::TYPE_SOCKET:
79	5		default:
80	5		$this->_establishSocketConnection();
81	5		break;
82	5		}
83	5		}
84
85			/**
86			* Set an individual param on the buffer (e.g. switching to SSL).
87			*
88			* @param string $param
89			* @param integer $value
90			*/
91			public function setParam($param, $value)
92			{
93			if (isset($this->_stream)) {
94			switch ($param) {
95			case 'timeout':
96			if ($this->_stream) {
97			stream_set_timeout($this->_stream, $value);
98			}
99			break;
100
101			case 'blocking':
102			if ($this->_stream) {
103			stream_set_blocking($this->_stream, 1);
104			}
105
106			}
107			}
108			$this->_params[$param] = $value;
109			}
110
111			/**
112			* @return mixed <p>Return <strong>true</strong> on success, <strong>false</strong> if negotiation has failed or <strong>0</strong> if there isn't enough data and you should try again.</p>
113			*/
114			public function startTLS()
115			{
116			return stream_socket_enable_crypto($this->_stream, true, STREAM_CRYPTO_METHOD_TLS_CLIENT);
117			}
118
119			/**
120			* Perform any shutdown logic needed.
121			*/
122	4		public function terminate()
123			{
124	4		if (isset($this->_stream)) {
125	4		switch ($this->_params['type']) {
126	4		case self::TYPE_PROCESS:
127			fclose($this->_in);
128			fclose($this->_out);
129			proc_close($this->_stream);
130			break;
131	4		case self::TYPE_SOCKET:
132	4		default:
133	4		fclose($this->_stream);
134	4		break;
135	4		}
136	4		}
137	4		$this->_stream = null;
138	4		$this->_out = null;
139	4		$this->_in = null;
140	4		}
141
142			/**
143			* Set an array of string replacements which should be made on data written
144			* to the buffer.
145			*
146			* This could replace LF with CRLF for example.
147			*
148			* @param string[] $replacements
149			*/
150	6		public function setWriteTranslations(array $replacements)
151			{
152	6		foreach ($this->_translations as $search => $replace) {
153	5		if (!isset($replacements[$search])) {
154	4		$this->removeFilter($search);
155	4		unset($this->_translations[$search]);
156	4		}
157	6		}
158
159	6		foreach ($replacements as $search => $replace) {
160	6		if (!isset($this->_translations[$search])) {
161	6		$this->addFilter(
162	6		$this->_replacementFactory->createFilter($search, $replace),
163			$search
164	6		);
165	6		$this->_translations[$search] = true;
166	6		}
167	6		}
168	6		}
169
170			/**
171			* Get a line of output (including any CRLF).
172			*
173			* The $sequence number comes from any writes and may or may not be used
174			* depending upon the implementation.
175			*
176			* @param int $sequence of last write to scan from
177			*
178			* @throws Swift_IoException
179			*
180			* @return string
181			*/
182	5	View Code Duplication	public function readLine($sequence)
			0 ignored issues – show Duplication introduced 2015-11-22 11:38 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...
183			{
184			if (
185	5		!isset($this->_out)
186	5		\|\|
187	5		feof($this->_out)
188	5		) {
189			// TODO?
190			return;
191			}
192
193	5		$line = fgets($this->_out);
194	5		if (!$line) {
195	1		$metas = stream_get_meta_data($this->_out);
196	1		if ($metas['timed_out']) {
197	1		throw new Swift_IoException('Connection to ' . $this->_getReadConnectionDescription() . ' Timed Out');
198			}
199			}
200
201	4		return $line;
202			}
203
204			/**
205			* Reads $length bytes from the stream into a string and moves the pointer
206			* through the stream by $length.
207			*
208			* If less bytes exist than are requested the remaining bytes are given instead.
209			* If no bytes are remaining at all, boolean false is returned.
210			*
211			* @param int $length
212			*
213			* @throws Swift_IoException
214			*
215			* @return string\|null
216			*/
217		View Code Duplication	public function read($length)
			0 ignored issues – show Duplication introduced 2017-05-28 11:19 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...
218			{
219			if (
220			!isset($this->_out)
221			\|\|
222			feof($this->_out)
223			) {
224			// TODO?
225			return;
226			}
227
228			$ret = fread($this->_out, $length);
229			if (!$ret) {
230			$metas = stream_get_meta_data($this->_out);
231			if ($metas['timed_out']) {
232			throw new Swift_IoException(
233			'Connection to ' . $this->_getReadConnectionDescription() . ' Timed Out'
234			);
235			}
236			}
237
238			return $ret;
239			}
240
241			/**
242			* WARNING: Not implemented
243			*
244			* @param int $byteOffset
245			*/
246			public function setReadPointer($byteOffset)
247			{
248			}
249
250			/** Flush the stream contents */
251	4		protected function _flush()
252			{
253	4		if (isset($this->_in)) {
254	4		fflush($this->_in);
255	4		}
256	4		}
257
258			/**
259			* Write this bytes to the stream
260			*
261			* @param string $bytes
262			*
263			* @return int
264			*
265			* @throws Swift_IoException
266			*/
267	4		protected function _commit($bytes)
268			{
269	4		if (!isset($this->_in)) {
270			// TODO?
271			return;
272			}
273
274	4		$bytesToWrite = strlen($bytes);
275	4		$totalBytesWritten = 0;
276
277	4		while ($totalBytesWritten < $bytesToWrite) {
278	4		$bytesWritten = fwrite($this->_in, substr($bytes, $totalBytesWritten));
279	4		if (false === $bytesWritten \|\| 0 === $bytesWritten) {
280			throw new Swift_IoException(
281			'Connection to ' . $this->_getReadConnectionDescription() . ' has gone away'
282			);
283			}
284
285	4		$totalBytesWritten += $bytesWritten;
286	4		}
287
288	4		if ($totalBytesWritten > 0) {
289	4		return ++$this->_sequence;
290			}
291
292			// TODO?
293			return;
294			}
295
296			/**
297			* Establishes a connection to a remote server.
298			*
299			* @throws Swift_TransportException
300			*/
301	5		private function _establishSocketConnection()
302			{
303			// set default "php"-options for "stream_context_create"
304			// and overwrite it with the "user"-options
305	5		$options = stream_context_get_options(stream_context_get_default());
306
307	5		$host = $this->_params['host'];
308	5	View Code Duplication	if (!empty($this->_params['protocol'])) {
			0 ignored issues – show Duplication introduced 2015-11-22 11:38 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...
309	1		$host = $this->_params['protocol'] . '://' . $host;
310	1		}
311
312	5		$timeout = 15;
313	5		if (!empty($this->_params['timeout'])) {
314	5		$timeout = $this->_params['timeout'];
315	5		}
316
317	5		if (!empty($this->_params['sourceIp'])) {
318			$options['socket']['bindto'] = $this->_params['sourceIp'] . ':0';
319			}
320
321	5	View Code Duplication	if (!empty($this->_params['verifySsl'])) {
			0 ignored issues – show Duplication introduced 2016-05-28 11:38 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...
322			$options = array_replace_recursive($options, $this->_params['verifySsl']);
323			}
324
325	5	View Code Duplication	if (!empty($this->_params['stream_context_options'])) {
			0 ignored issues – show Duplication introduced 2016-05-28 11:38 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...
326			$options = array_replace_recursive($options, $this->_params['stream_context_options']);
327			}
328
329	5		$streamContext = stream_context_create($options);
330			/** @noinspection PhpUsageOfSilenceOperatorInspection */
331	5		$this->_stream = @stream_socket_client($host . ':' . $this->_params['port'], $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $streamContext);
332
333	5		if (false === $this->_stream) {
334			throw new Swift_TransportException('Connection could not be established with host ' . $this->_params['host'] . ' [' . $errstr . ' #' . $errno . ']');
335			}
336
337	5		if (!empty($this->_params['blocking'])) {
338	5		stream_set_blocking($this->_stream, 1);
339	5		} else {
340			stream_set_blocking($this->_stream, 0);
341			}
342
343	5		stream_set_timeout($this->_stream, $timeout);
344	5		$this->_in = &$this->_stream;
345	5		$this->_out = &$this->_stream;
346	5		}
347
348			/**
349			* Opens a process for input/output.
350			*/
351			private function _establishProcessConnection()
352			{
353			$command = $this->_params['command'];
354			$descriptorSpec = array(
355			0 => array('pipe', 'r'),
356			1 => array('pipe', 'w'),
357			2 => array('pipe', 'w'),
358			);
359
360			$pipes = array();
361			$this->_stream = proc_open($command, $descriptorSpec, $pipes);
362			stream_set_blocking($pipes[2], 0);
363
364			$err = stream_get_contents($pipes[2]);
365			if ($err) {
366			throw new Swift_TransportException('Process could not be started [' . $err . ']');
367			}
368
369			$this->_in = &$pipes[0];
370			$this->_out = &$pipes[1];
371			}
372
373			/**
374			* @return string
375			*/
376	1		private function _getReadConnectionDescription()
377			{
378	1		switch ($this->_params['type']) {
379	1		case self::TYPE_PROCESS:
380			return 'Process ' . $this->_params['command'];
381			break;
			0 ignored issues – show Unused Code introduced 2015-11-22 11:38 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($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...
382
383	1		case self::TYPE_SOCKET:
384	1		default:
385	1		$host = $this->_params['host'];
386	1	View Code Duplication	if (!empty($this->_params['protocol'])) {
			0 ignored issues – show Duplication introduced 2015-11-22 11:38 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...
387	1		$host = $this->_params['protocol'] . '://' . $host;
388	1		}
389	1		$host .= ':' . $this->_params['port'];
390
391	1		return $host;
392			break;
			0 ignored issues – show Unused Code introduced 2015-11-22 11:38 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($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...
393			}
394			}
395			}
396

voku / swiftmailer

Push — 5.x ( 4bb56c...2a7c65 )

Swift_Transport_StreamBuffer::readLine() B

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

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