Client::sendFrame() - Code Metrics - Inspection of "Add PSR-3 log for frame logging" - AfriCC/php-epp2 - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#85)

unknown

created 2019-10-30 20:20 UTC

Client::sendFrame() A

↳ Parent: Client

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	7
rs	10
c	0
b	0
f	0
nc	1
cc	1
nop	1

<?php

/**
 * This file is part of the php-epp2 library.
 *
 * (c) Gunter Grodotzki <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE file
 * that was distributed with this source code.
 */

namespace AfriCC\EPP;

use AfriCC\EPP\Frame\Command\Logout as LogoutCommand;
use Exception;
use Psr\Log\LoggerAwareInterface;
use Psr\Log\LoggerAwareTrait;

/**
 * A high level TCP (SSL) based client for the Extensible Provisioning Protocol (EPP)
 *
 * @see http://tools.ietf.org/html/rfc5734
 *
 * As this class deals directly with sockets it's untestable
 * @codeCoverageIgnore
 */
class Client extends AbstractClient implements ClientInterface, LoggerAwareInterface
{
    use LoggerAwareTrait;

    protected $socket;
    protected $chunk_size;
    protected $verify_peer_name;

    public function __construct(array $config, ObjectSpec $objectSpec = null)
    {
        parent::__construct($config, $objectSpec);

        if (!empty($config['chunk_size'])) {
            $this->chunk_size = (int) $config['chunk_size'];
        } else {
            $this->chunk_size = 1024;
        }

        if (isset($config['verify_peer_name'])) {
            $this->verify_peer_name = (bool) $config['verify_peer_name'];
        } else {
            $this->verify_peer_name = true;
        }

        if ($this->port === false) {
            // if not set, default port is 700
            $this->port = 700;
        }
    }

    public function __destruct()
    {
        $this->close();
    }

    /**
     * Setup context in case of ssl connection
     *
     * @return resource|null
     */
    private function setupContext()
    {
        if (!$this->ssl) {
            return null;
        }

        $context = stream_context_create();

        $options_array = [
            'verify_peer' => false,
            'verify_peer_name' => $this->verify_peer_name,
            'allow_self_signed' => true,
            'local_cert' => $this->local_cert,
            'passphrase' => $this->passphrase,
            'cafile' => $this->ca_cert,
            'local_pk' => $this->pk_cert,
        ];

        // filter out empty user provided values
        $options_array = array_filter(
            $options_array,
            function ($var) {
                return !is_null($var);
            }
        );

        $options = ['ssl' => $options_array];

        // stream_context_set_option accepts array of options in form of $arr['wrapper']['option'] = value
        stream_context_set_option($context, $options);

        return $context;
    }

    /**
     * Setup connection socket
     *
     * @param resource|null $context SSL context or null in case of tcp connection
     *
     * @throws Exception on socket errors
     */
    private function setupSocket($context = null)
    {
        $proto = $this->ssl ? 'ssl' : 'tcp';
        $target = sprintf('%s://%s:%d', $proto, $this->host, $this->port);

        $errno = 0;
        $errstr = '';

        $this->socket = @stream_socket_client($target, $errno, $errstr, $this->connect_timeout, STREAM_CLIENT_CONNECT, $context);

        if ($this->socket === false) {
            // Socket initialization may fail, before system call connect()
            // so the $errno is 0 and $errstr isn't populated .
            // see https://www.php.net/manual/en/function.stream-socket-client.php#refsect1-function.stream-socket-client-errors
            throw new Exception(sprintf('problem initializing socket: %s code: [%d]', $errstr, $errno), $errno);
        }

        // set stream time out
        if (!stream_set_timeout($this->socket, $this->timeout)) {
            throw new Exception('unable to set stream timeout');
        }

        // set to non-blocking
        if (!stream_set_blocking($this->socket, 0)) {
            throw new Exception('unable to set blocking');
        }
    }

    /**
     * {@inheritdoc}
     *
     * @see \AfriCC\EPP\ClientInterface::connect()
     */
    public function connect($newPassword = false)
    {
        $context = $this->setupContext();
        $this->setupSocket($context);

        // get greeting
        $greeting = $this->getFrame();

        // login
        $this->login($newPassword);

        // return greeting
        return $greeting;
    }

    /**
     * Closes a previously opened EPP connection
     */
    public function close()
    {
        if ($this->active()) {
            // send logout frame
            $this->request(new LogoutCommand($this->objectSpec));

            return fclose($this->socket);
        }

        return false;
    }

    public function getFrame()
    {
        $hard_time_limit = time() + $this->timeout + 2;
        do {
            $header = $this->recv(4);
        } while (empty($header) && (time() < $hard_time_limit));

        if (time() >= $hard_time_limit) {
            throw new Exception('Timeout while reading header from EPP Server');
        }

        // Unpack first 4 bytes which is our length
        $unpacked = unpack('N', $header);
        $length = $unpacked[1];

        if ($length < 5) {
            throw new Exception(sprintf('Got a bad frame header length of %d bytes from peer', $length));
        } else {
            $length -= 4;

            return $this->recv($length);
        }
    }

    public function sendFrame(FrameInterface $frame)
    {
        $buffer = (string) $frame;
        $header = pack('N', mb_strlen($buffer, 'ASCII') + 4);

        return $this->send($header . $buffer);
    }

    protected function debugLog($message, $color = '0;32')
    {
        if ($message === '' || !$this->debug) {
            return;
        }
        echo sprintf("\033[%sm%s\033[0m", $color, $message);
    }

    /**
     * check if socket is still active
     *
     * @return bool
     */
    private function active()
    {
        return !is_resource($this->socket) || feof($this->socket) ? false : true;
    }

    /**
     * receive socket data
     *
     * @param int $length
     *
     * @throws Exception
     *
     * @return string
     */
    private function recv($length)
    {
        $result = '';

        $info = stream_get_meta_data($this->socket);
        $hard_time_limit = time() + $this->timeout + 2;

        while (!$info['timed_out'] && !feof($this->socket)) {
            // Try read remaining data from socket
            $buffer = @fread($this->socket, $length - mb_strlen($result, 'ASCII'));

            // If the buffer actually contains something then add it to the result
            if ($buffer !== false) {
                $this->debuLog($buffer);

                $result .= $buffer;

                // break if all data received
                if (mb_strlen($result, 'ASCII') === $length) {
                    break;
                }
            } else {
                // sleep 0.25s
                usleep(250000);
            }

            // update metadata
            $info = stream_get_meta_data($this->socket);
            if (time() >= $hard_time_limit) {
                throw new Exception('Timeout while reading from EPP Server');
            }
        }

        // check for timeout
        if ($info['timed_out']) {
            throw new Exception('Timeout while reading data from socket');
        }

        return $result;
    }

    /**
     * send data to socket
     *
     * @param string $buffer
     */
    private function send($buffer)
    {
        $info = stream_get_meta_data($this->socket);
        $hard_time_limit = time() + $this->timeout + 2;
        $length = mb_strlen($buffer, 'ASCII');

        $pos = 0;
        while (!$info['timed_out'] && !feof($this->socket)) {
            // Some servers don't like a lot of data, so keep it small per chunk
            $wlen = $length - $pos;

            if ($wlen > $this->chunk_size) {
                $wlen = $this->chunk_size;
            }

            // try write remaining data from socket
            $written = @fwrite($this->socket, mb_substr($buffer, $pos, $wlen, 'ASCII'), $wlen);

            // If we read something, bump up the position
            if ($written) {
                if ($this->debug) {
                    $this->debugLog(mb_substr($buffer, $pos, $wlen, 'ASCII'), '1;31');
                }
                $pos += $written;

                // break if all written
                if ($pos === $length) {
                    break;
                }
            } else {
                // sleep 0.25s
                usleep(250000);
            }

            // update metadata
            $info = stream_get_meta_data($this->socket);
            if (time() >= $hard_time_limit) {
                throw new Exception('Timeout while writing to EPP Server');
            }
        }

        // check for timeout
        if ($info['timed_out']) {
            throw new Exception('Timeout while writing data to socket');
        }

        if ($pos !== $length) {
            throw new Exception('Writing short %d bytes', $length - $pos);
        }

        return $pos;
    }
}


1			<?php
2
3			/**
4			* This file is part of the php-epp2 library.
5			*
6			* (c) Gunter Grodotzki <[email protected]>
7			*
8			* For the full copyright and license information, please view the LICENSE file
9			* that was distributed with this source code.
10			*/
11
12			namespace AfriCC\EPP;
13
14			use AfriCC\EPP\Frame\Command\Logout as LogoutCommand;
15			use Exception;
16			use Psr\Log\LoggerAwareInterface;
17			use Psr\Log\LoggerAwareTrait;
18
19			/**
20			* A high level TCP (SSL) based client for the Extensible Provisioning Protocol (EPP)
21			*
22			* @see http://tools.ietf.org/html/rfc5734
23			*
24			* As this class deals directly with sockets it's untestable
25			* @codeCoverageIgnore
26			*/
27			class Client extends AbstractClient implements ClientInterface, LoggerAwareInterface
28			{
29			use LoggerAwareTrait;
30
31			protected $socket;
32			protected $chunk_size;
33			protected $verify_peer_name;
34
35			public function __construct(array $config, ObjectSpec $objectSpec = null)
36			{
37			parent::__construct($config, $objectSpec);
38
39			if (!empty($config['chunk_size'])) {
40			$this->chunk_size = (int) $config['chunk_size'];
41			} else {
42			$this->chunk_size = 1024;
43			}
44
45			if (isset($config['verify_peer_name'])) {
46			$this->verify_peer_name = (bool) $config['verify_peer_name'];
47			} else {
48			$this->verify_peer_name = true;
49			}
50
51			if ($this->port === false) {
52			// if not set, default port is 700
53			$this->port = 700;
54			}
55			}
56
57			public function __destruct()
58			{
59			$this->close();
60			}
61
62			/**
63			* Setup context in case of ssl connection
64			*
65			* @return resource\|null
66			*/
67			private function setupContext()
68			{
69			if (!$this->ssl) {
70			return null;
71			}
72
73			$context = stream_context_create();
74
75			$options_array = [
76			'verify_peer' => false,
77			'verify_peer_name' => $this->verify_peer_name,
78			'allow_self_signed' => true,
79			'local_cert' => $this->local_cert,
80			'passphrase' => $this->passphrase,
81			'cafile' => $this->ca_cert,
82			'local_pk' => $this->pk_cert,
83			];
84
85			// filter out empty user provided values
86			$options_array = array_filter(
87			$options_array,
88			function ($var) {
89			return !is_null($var);
90			}
91			);
92
93			$options = ['ssl' => $options_array];
94
95			// stream_context_set_option accepts array of options in form of $arr['wrapper']['option'] = value
96			stream_context_set_option($context, $options);
97
98			return $context;
99			}
100
101			/**
102			* Setup connection socket
103			*
104			* @param resource\|null $context SSL context or null in case of tcp connection
105			*
106			* @throws Exception on socket errors
107			*/
108			private function setupSocket($context = null)
109			{
110			$proto = $this->ssl ? 'ssl' : 'tcp';
111			$target = sprintf('%s://%s:%d', $proto, $this->host, $this->port);
112
113			$errno = 0;
114			$errstr = '';
115
116			$this->socket = @stream_socket_client($target, $errno, $errstr, $this->connect_timeout, STREAM_CLIENT_CONNECT, $context);
117
118			if ($this->socket === false) {
119			// Socket initialization may fail, before system call connect()
120			// so the $errno is 0 and $errstr isn't populated .
121			// see https://www.php.net/manual/en/function.stream-socket-client.php#refsect1-function.stream-socket-client-errors
122			throw new Exception(sprintf('problem initializing socket: %s code: [%d]', $errstr, $errno), $errno);
123			}
124
125			// set stream time out
126			if (!stream_set_timeout($this->socket, $this->timeout)) {
127			throw new Exception('unable to set stream timeout');
128			}
129
130			// set to non-blocking
131			if (!stream_set_blocking($this->socket, 0)) {
132			throw new Exception('unable to set blocking');
133			}
134			}
135
136			/**
137			* {@inheritdoc}
138			*
139			* @see \AfriCC\EPP\ClientInterface::connect()
140			*/
141			public function connect($newPassword = false)
142			{
143			$context = $this->setupContext();
144			$this->setupSocket($context);
145
146			// get greeting
147			$greeting = $this->getFrame();
148
149			// login
150			$this->login($newPassword);
151
152			// return greeting
153			return $greeting;
154			}
155
156			/**
157			* Closes a previously opened EPP connection
158			*/
159			public function close()
160			{
161			if ($this->active()) {
162			// send logout frame
163			$this->request(new LogoutCommand($this->objectSpec));
164
165			return fclose($this->socket);
166			}
167
168			return false;
169			}
170
171			public function getFrame()
172			{
173			$hard_time_limit = time() + $this->timeout + 2;
174			do {
175			$header = $this->recv(4);
176			} while (empty($header) && (time() < $hard_time_limit));
177
178			if (time() >= $hard_time_limit) {
179			throw new Exception('Timeout while reading header from EPP Server');
180			}
181
182			// Unpack first 4 bytes which is our length
183			$unpacked = unpack('N', $header);
184			$length = $unpacked[1];
185
186			if ($length < 5) {
187			throw new Exception(sprintf('Got a bad frame header length of %d bytes from peer', $length));
188			} else {
189			$length -= 4;
190
191			return $this->recv($length);
192			}
193			}
194
195			public function sendFrame(FrameInterface $frame)
196			{
197			$buffer = (string) $frame;
198			$header = pack('N', mb_strlen($buffer, 'ASCII') + 4);
199
200			return $this->send($header . $buffer);
201			}
202
203			protected function debugLog($message, $color = '0;32')
204			{
205			if ($message === '' \|\| !$this->debug) {
206			return;
207			}
208			echo sprintf("\033[%sm%s\033[0m", $color, $message);
209			}
210
211			/**
212			* check if socket is still active
213			*
214			* @return bool
215			*/
216			private function active()
217			{
218			return !is_resource($this->socket) \|\| feof($this->socket) ? false : true;
219			}
220
221			/**
222			* receive socket data
223			*
224			* @param int $length
225			*
226			* @throws Exception
227			*
228			* @return string
229			*/
230			private function recv($length)
231			{
232			$result = '';
233
234			$info = stream_get_meta_data($this->socket);
235			$hard_time_limit = time() + $this->timeout + 2;
236
237			while (!$info['timed_out'] && !feof($this->socket)) {
238			// Try read remaining data from socket
239			$buffer = @fread($this->socket, $length - mb_strlen($result, 'ASCII'));
240
241			// If the buffer actually contains something then add it to the result
242			if ($buffer !== false) {
243			$this->debuLog($buffer);
			0 ignored issues – show Bug introduced 2019-10-30 19:36 UTC by Report Bug Copy Issue Report The method `debuLog()` does not exist on `AfriCC\EPP\Client`. Did you maybe mean `debugLog()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
244			$result .= $buffer;
245
246			// break if all data received
247			if (mb_strlen($result, 'ASCII') === $length) {
248			break;
249			}
250			} else {
251			// sleep 0.25s
252			usleep(250000);
253			}
254
255			// update metadata
256			$info = stream_get_meta_data($this->socket);
257			if (time() >= $hard_time_limit) {
258			throw new Exception('Timeout while reading from EPP Server');
259			}
260			}
261
262			// check for timeout
263			if ($info['timed_out']) {
264			throw new Exception('Timeout while reading data from socket');
265			}
266
267			return $result;
268			}
269
270			/**
271			* send data to socket
272			*
273			* @param string $buffer
274			*/
275			private function send($buffer)
276			{
277			$info = stream_get_meta_data($this->socket);
278			$hard_time_limit = time() + $this->timeout + 2;
279			$length = mb_strlen($buffer, 'ASCII');
280
281			$pos = 0;
282			while (!$info['timed_out'] && !feof($this->socket)) {
283			// Some servers don't like a lot of data, so keep it small per chunk
284			$wlen = $length - $pos;
285
286			if ($wlen > $this->chunk_size) {
287			$wlen = $this->chunk_size;
288			}
289
290			// try write remaining data from socket
291			$written = @fwrite($this->socket, mb_substr($buffer, $pos, $wlen, 'ASCII'), $wlen);
292
293			// If we read something, bump up the position
294			if ($written) {
295			if ($this->debug) {
296			$this->debugLog(mb_substr($buffer, $pos, $wlen, 'ASCII'), '1;31');
297			}
298			$pos += $written;
299
300			// break if all written
301			if ($pos === $length) {
302			break;
303			}
304			} else {
305			// sleep 0.25s
306			usleep(250000);
307			}
308
309			// update metadata
310			$info = stream_get_meta_data($this->socket);
311			if (time() >= $hard_time_limit) {
312			throw new Exception('Timeout while writing to EPP Server');
313			}
314			}
315
316			// check for timeout
317			if ($info['timed_out']) {
318			throw new Exception('Timeout while writing data to socket');
319			}
320
321			if ($pos !== $length) {
322			throw new Exception('Writing short %d bytes', $length - $pos);
323			}
324
325			return $pos;
326			}
327			}
328

AfriCC / php-epp2

Pull Request — master (#85)

Client::sendFrame() A

Complexity

Size

Duplication

Importance

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