Stream::getContents() - Code Metrics - Inspection of "Make sure __toString does not throw exception (#28..." - php-http/socket-client - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 7459b3...a2b5cf )

by Tobias

created 2017-07-07 21:58 UTC

Stream::getContents() A

↳ Parent: Stream

Complexity

Conditions	3
Paths	2

Size

Total Lines	14
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	3

Importance

Changes

Metric	Value
dl	0
loc	14
c	0
b	0
f	0
cc	3
eloc	8
nc	2
nop	0
ccs	7
cts	7
cp	1
crap	3
rs	9.4285

<?php

namespace Http\Client\Socket;

use Http\Client\Socket\Exception\StreamException;
use Http\Client\Socket\Exception\TimeoutException;
use Psr\Http\Message\StreamInterface;

/**
 * Stream implementation for Socket Client.
 *
 * This implementation is used to have a Stream which react better to the Socket Client behavior.
 *
 * The main advantage is you can get the response of a request even if it's not finish, the response is available
 * as soon as all headers are received, this stream will have the remaining socket used for the request / response
 * call.
 *
 * It is only readable once, if you want to read the content multiple times, you can store contents of this
 * stream into a variable or encapsulate it in a buffered stream.
 *
 * Writing and seeking is disable to avoid weird behaviors.
 *
 * @author Joel Wurtz <[email protected]>
 */
class Stream implements StreamInterface
{
    /** @var resource Underlying socket */
    private $socket;

    /**
     * @var bool Is stream detached
     */
    private $isDetached = false;

    /**
     * @var int|null Size of the stream, so we know what we must read, null if not available (i.e. a chunked stream)
     */
    private $size;

    /**
     * @var int Size of the stream readed, to avoid reading more than available and have the user blocked
     */
    private $readed = 0;

    /**
     * Create the stream.
     *
     * @param resource $socket
     * @param int      $size
     */
    public function __construct($socket, $size = null)
    {
        $this->socket = $socket;
        $this->size = $size;
    }

    /**
     * {@inheritdoc}
     */
    public function __toString()
    {
        try {
            return $this->getContents();
        } catch (\Exception $e) {
            return '';
        }
    }

    /**
     * {@inheritdoc}
     */
    public function close()
    {
        fclose($this->socket);
    }

    /**
     * {@inheritdoc}
     */
    public function detach()
    {
        $this->isDetached = true;
        $socket = $this->socket;
        $this->socket = null;

        return $socket;
    }

    /**
     * {@inheritdoc}
     */
    public function getSize()
    {
        return $this->size;
    }

    /**
     * {@inheritdoc}
     */
    public function tell()
    {
        return ftell($this->socket);
    }

    /**
     * {@inheritdoc}
     */
    public function eof()
    {
        return feof($this->socket);
    }

    /**
     * {@inheritdoc}
     */
    public function isSeekable()
    {
        return false;
    }

    /**
     * {@inheritdoc}
     */
    public function seek($offset, $whence = SEEK_SET)
    {
        throw new StreamException('This stream is not seekable');
    }

    /**
     * {@inheritdoc}
     */
    public function rewind()
    {
        throw new StreamException('This stream is not seekable');
    }

    /**
     * {@inheritdoc}
     */
    public function isWritable()
    {
        return false;
    }

    /**
     * {@inheritdoc}
     */
    public function write($string)
    {
        throw new StreamException('This stream is not writable');
    }

    /**
     * {@inheritdoc}
     */
    public function isReadable()
    {
        return true;
    }

    /**
     * {@inheritdoc}
     */
    public function read($length)
    {
        if (null === $this->getSize()) {
            return fread($this->socket, $length);
        }

        if ($this->getSize() === $this->readed) {
            return '';
        }

        // Even if we request a length a non blocking stream can return less data than asked
        $read = fread($this->socket, $length);

        if ($this->getMetadata('timed_out')) {
            throw new TimeoutException('Stream timed out while reading data');
        }

        $this->readed += strlen($read);

        return $read;
    }

    /**
     * {@inheritdoc}
     */
    public function getContents()
    {
        if (null === $this->getSize()) {
            return stream_get_contents($this->socket);
        }

        $contents = '';

        do {
            $contents .= $this->read($this->getSize() - $this->readed);
        } while ($this->readed < $this->getSize());

        return $contents;
    }

    /**
     * {@inheritdoc}
     */
    public function getMetadata($key = null)
    {
        $meta = stream_get_meta_data($this->socket);

        if (null === $key) {
            return $meta;
        }

        return $meta[$key];
    }
}


1		<?php
2
3		namespace Http\Client\Socket;
4
5		use Http\Client\Socket\Exception\StreamException;
6		use Http\Client\Socket\Exception\TimeoutException;
7		use Psr\Http\Message\StreamInterface;
8
9		/**
10		* Stream implementation for Socket Client.
11		*
12		* This implementation is used to have a Stream which react better to the Socket Client behavior.
13		*
14		* The main advantage is you can get the response of a request even if it's not finish, the response is available
15		* as soon as all headers are received, this stream will have the remaining socket used for the request / response
16		* call.
17		*
18		* It is only readable once, if you want to read the content multiple times, you can store contents of this
19		* stream into a variable or encapsulate it in a buffered stream.
20		*
21		* Writing and seeking is disable to avoid weird behaviors.
22		*
23		* @author Joel Wurtz <[email protected]>
24		*/
25		class Stream implements StreamInterface
26		{
27		/** @var resource Underlying socket */
28		private $socket;
29
30		/**
31		* @var bool Is stream detached
32		*/
33		private $isDetached = false;
34
35		/**
36		* @var int\|null Size of the stream, so we know what we must read, null if not available (i.e. a chunked stream)
37		*/
38		private $size;
39
40		/**
41		* @var int Size of the stream readed, to avoid reading more than available and have the user blocked
42		*/
43		private $readed = 0;
44
45		/**
46		* Create the stream.
47		*
48		* @param resource $socket
49		* @param int $size
50		*/
51	71	public function __construct($socket, $size = null)
52		{
53	71	$this->socket = $socket;
54	71	$this->size = $size;
55	71	}
56
57		/**
58		* {@inheritdoc}
59		*/
60	1	public function __toString()
61		{
62		try {
63	1	return $this->getContents();
64		} catch (\Exception $e) {
65		return '';
66		}
67		}
68
69		/**
70		* {@inheritdoc}
71		*/
72	5	public function close()
73		{
74	5	fclose($this->socket);
75	5	}
76
77		/**
78		* {@inheritdoc}
79		*/
80	1	public function detach()
81		{
82	1	$this->isDetached = true;
83	1	$socket = $this->socket;
84	1	$this->socket = null;
85
86	1	return $socket;
87		}
88
89		/**
90		* {@inheritdoc}
91		*/
92	58	public function getSize()
93		{
94	58	return $this->size;
95		}
96
97		/**
98		* {@inheritdoc}
99		*/
100	1	public function tell()
101		{
102	1	return ftell($this->socket);
103		}
104
105		/**
106		* {@inheritdoc}
107		*/
108	1	public function eof()
109		{
110	1	return feof($this->socket);
111		}
112
113		/**
114		* {@inheritdoc}
115		*/
116	1	public function isSeekable()
117		{
118	1	return false;
119		}
120
121		/**
122		* {@inheritdoc}
123		*/
124	1	public function seek($offset, $whence = SEEK_SET)
125		{
126	1	throw new StreamException('This stream is not seekable');
127		}
128
129		/**
130		* {@inheritdoc}
131		*/
132	1	public function rewind()
133		{
134	1	throw new StreamException('This stream is not seekable');
135		}
136
137		/**
138		* {@inheritdoc}
139		*/
140	1	public function isWritable()
141		{
142	1	return false;
143		}
144
145		/**
146		* {@inheritdoc}
147		*/
148	1	public function write($string)
149		{
150	1	throw new StreamException('This stream is not writable');
151		}
152
153		/**
154		* {@inheritdoc}
155		*/
156	1	public function isReadable()
157		{
158	1	return true;
159		}
160
161		/**
162		* {@inheritdoc}
163		*/
164	4	public function read($length)
165		{
166	4	if (null === $this->getSize()) {
167		return fread($this->socket, $length);
168		}
169
170	4	if ($this->getSize() === $this->readed) {
171	1	return '';
172		}
173
174		// Even if we request a length a non blocking stream can return less data than asked
175	4	$read = fread($this->socket, $length);
176
177	4	if ($this->getMetadata('timed_out')) {
178		throw new TimeoutException('Stream timed out while reading data');
179		}
180
181	4	$this->readed += strlen($read);
182
183	4	return $read;
184		}
185
186		/**
187		* {@inheritdoc}
188		*/
189	57	public function getContents()
190		{
191	57	if (null === $this->getSize()) {
192	54	return stream_get_contents($this->socket);
193		}
194
195	3	$contents = '';
196
197		do {
198	3	$contents .= $this->read($this->getSize() - $this->readed);
199	3	} while ($this->readed < $this->getSize());
200
201	3	return $contents;
202		}
203
204		/**
205		* {@inheritdoc}
206		*/
207	5	public function getMetadata($key = null)
208		{
209	5	$meta = stream_get_meta_data($this->socket);
210
211	5	if (null === $key) {
212		return $meta;
213		}
214
215	5	return $meta[$key];
216		}
217		}
218

php-http / socket-client

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Stream::getContents() A

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