Stream::isWritable() - Code Metrics - WyriHaximus/react-guzzle-http-client - Measure and Improve Code Quality continuously with Scrutinizer

Stream::isWritable() A
last analyzed 2020-02-26 13:22 UTC

↳ Parent: Stream

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	4
ccs	0
cts	4
cp	0
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	0
crap	2

<?php

/**
 * This file is part of ReactGuzzleRing.
 *
 ** (c) 2015 Cees-Jan Kiewiet
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace WyriHaximus\React\Guzzle\HttpClient;

use Psr\Http\Message\StreamInterface;

/**
 * Class Stream
 *
 * @package WyriHaximus\React\RingPHP\HttpClient
 */
class Stream implements StreamInterface
{
    const OVERFLOW_LEVEL = 21632; // 2MB

    protected $stream;
    protected $eof = false;
    protected $size = 0;
    protected $buffer = '';
    protected $loop;
    protected $overflowStream;

    public function __construct(array $options)
    {
        $this->loop = $options['loop'];

        /*if (class_exists('React\Filesystem\Filesystem')) {
            $this->setUpFilesystemStream($options);
            return;
        }*/

        $this->setUpNormalStream($options);
    }

    protected function setUpFilesystemStream(array $options)
    {
        $this->overflowStream = new FileCacheStream([
            'loop' => $this->loop,
        ]);

        $options['response']->on(
            'data',
            function ($data) {
                if ($this->size >= static::OVERFLOW_LEVEL && $this->overflowStream->isOpen()) {
                    return $this->overflowStream->write($data);
                }

                if ($this->size >= static::OVERFLOW_LEVEL &&
                    !$this->overflowStream->isOpen() &&
                    !$this->overflowStream->isOpening()
                ) {
                    $this->overflowStream->open();
                }

                $this->buffer .= $data;
                $this->size = strlen($this->buffer);
            }
        );

        $options['request']->on(
            'end',
            function () {
                $this->eof = true;
            }
        );
    }

    protected function setUpNormalStream(array $options)
    {
        $options['response']->on(
            'data',
            function ($data) {
                $this->buffer .= $data;
                $this->size = strlen($this->buffer);
            }
        );

        $options['request']->on(
            'end',
            function () {
                $this->eof = true;
            }
        );
    }

    public function eof()
    {
        return $this->eof && $this->size === 0;
    }

    public function getSize()
    {
        return $this->size;
    }

    public function isReadable()
    {
        return true;
    }

    public function tell()
    {
        return false;
class Author {
    private $name;

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

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
    }

    public function write($string)
    {
        return false;
class Author {
    private $name;

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

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
    }

    public function rewind()
    {
        return false;
    }

    public function isWritable()
    {
        return false;
    }

    public function isSeekable()
    {
        return false;
    }

    public function seek($offset, $whence = SEEK_SET)
    {
        return false;
    }

    public function read($length)
    {
        $this->toTickOrNotToTick();

        if (strlen($this->buffer) <= $length) {
            $buffer = $this->buffer;
            $this->buffer = '';
            $this->size = 0;
            return $buffer;
        }

        $buffer = substr($this->buffer, 0, $length);
        $this->buffer = substr($this->buffer, $length);
        $this->size = strlen($this->buffer);
        return $buffer;
    }

    public function getContents($maxLength = -1)
    {
        $buffer = '';
        while (!$this->eof()) {
            $buffer .= $this->read(1000000);
        }
        return $buffer;
    }

    public function __toString()
    {
        return $this->getContents();
    }

    public function getMetadata($key = null)
    {
        $metadata = [
            'timed_out'     => '',
            'blocked'       => false,
            'eof'           => $this->eof,
            'unread_bytes'  => '',
            'stream_type'   => '',
            'wrapper_type'  => '',
            'wrapper_data'  => '',
            'mode'          => '',
            'seekable'      => false,
            'uri'           => '',
        ];

        if (!$key) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            return $metadata;
        }

        return isset($metadata[$key]) ? $metadata[$key] : null;
    }

    public function attach($stream)

    {
    }

    public function detach()
    {
    }

    public function close()
    {
    }

    protected function toTickOrNotToTick()
    {
        if ($this->size === 0) {
            $this->loop->tick();
        }
    }

    /**
     * For Guzzle v4 compatibility
     */
    public function flush()
    {
    }
}


1			<?php
2
3			/**
4			* This file is part of ReactGuzzleRing.
5			*
6			** (c) 2015 Cees-Jan Kiewiet
7			*
8			* For the full copyright and license information, please view the LICENSE
9			* file that was distributed with this source code.
10			*/
11			namespace WyriHaximus\React\Guzzle\HttpClient;
12
13			use Psr\Http\Message\StreamInterface;
14
15			/**
16			* Class Stream
17			*
18			* @package WyriHaximus\React\RingPHP\HttpClient
19			*/
20			class Stream implements StreamInterface
21			{
22			const OVERFLOW_LEVEL = 21632; // 2MB
23
24			protected $stream;
25			protected $eof = false;
26			protected $size = 0;
27			protected $buffer = '';
28			protected $loop;
29			protected $overflowStream;
30
31			public function __construct(array $options)
32			{
33			$this->loop = $options['loop'];
34
35			/*if (class_exists('React\Filesystem\Filesystem')) {
36			$this->setUpFilesystemStream($options);
37			return;
38			}*/
39
40			$this->setUpNormalStream($options);
41			}
42
43			protected function setUpFilesystemStream(array $options)
44			{
45			$this->overflowStream = new FileCacheStream([
46			'loop' => $this->loop,
47			]);
48
49			$options['response']->on(
50			'data',
51			function ($data) {
52			if ($this->size >= static::OVERFLOW_LEVEL && $this->overflowStream->isOpen()) {
53			return $this->overflowStream->write($data);
54			}
55
56			if ($this->size >= static::OVERFLOW_LEVEL &&
57			!$this->overflowStream->isOpen() &&
58			!$this->overflowStream->isOpening()
59			) {
60			$this->overflowStream->open();
61			}
62
63			$this->buffer .= $data;
64			$this->size = strlen($this->buffer);
65			}
66			);
67
68			$options['request']->on(
69			'end',
70			function () {
71			$this->eof = true;
72			}
73			);
74			}
75
76			protected function setUpNormalStream(array $options)
77			{
78			$options['response']->on(
79			'data',
80			function ($data) {
81			$this->buffer .= $data;
82			$this->size = strlen($this->buffer);
83			}
84			);
85
86			$options['request']->on(
87			'end',
88			function () {
89			$this->eof = true;
90			}
91			);
92			}
93
94			public function eof()
95			{
96			return $this->eof && $this->size === 0;
97			}
98
99			public function getSize()
100			{
101			return $this->size;
102			}
103
104			public function isReadable()
105			{
106			return true;
107			}
108
109			public function tell()
110			{
111			return false;
			0 ignored issues – show Bug Best Practice introduced 2016-09-24 12:35 UTC by Report Bug Copy Issue Report The return type of `return false;` (`false`) is incompatible with the return type declared by the interface `Psr\Http\Message\StreamInterface::tell` of type `integer`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
112			}
113
114			public function write($string)
115			{
116			return false;
			0 ignored issues – show Bug Best Practice introduced 2016-09-24 12:35 UTC by Report Bug Copy Issue Report The return type of `return false;` (`false`) is incompatible with the return type declared by the interface `Psr\Http\Message\StreamInterface::write` of type `integer`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
117			}
118
119			public function rewind()
120			{
121			return false;
122			}
123
124			public function isWritable()
125			{
126			return false;
127			}
128
129			public function isSeekable()
130			{
131			return false;
132			}
133
134			public function seek($offset, $whence = SEEK_SET)
135			{
136			return false;
137			}
138
139			public function read($length)
140			{
141			$this->toTickOrNotToTick();
142
143			if (strlen($this->buffer) <= $length) {
144			$buffer = $this->buffer;
145			$this->buffer = '';
146			$this->size = 0;
147			return $buffer;
148			}
149
150			$buffer = substr($this->buffer, 0, $length);
151			$this->buffer = substr($this->buffer, $length);
152			$this->size = strlen($this->buffer);
153			return $buffer;
154			}
155
156			public function getContents($maxLength = -1)
157			{
158			$buffer = '';
159			while (!$this->eof()) {
160			$buffer .= $this->read(1000000);
161			}
162			return $buffer;
163			}
164
165			public function __toString()
166			{
167			return $this->getContents();
168			}
169
170			public function getMetadata($key = null)
171			{
172			$metadata = [
173			'timed_out' => '',
174			'blocked' => false,
175			'eof' => $this->eof,
176			'unread_bytes' => '',
177			'stream_type' => '',
178			'wrapper_type' => '',
179			'wrapper_data' => '',
180			'mode' => '',
181			'seekable' => false,
182			'uri' => '',
183			];
184
185			if (!$key) {
			0 ignored issues – show Bug Best Practice introduced 2016-09-24 12:35 UTC by Report Bug Copy Issue Report The expression `$key` of type `string\|null` is loosely compared to `false`; this is ambiguous if the string can be empty. You might want to explicitly use `=== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
186			return $metadata;
187			}
188
189			return isset($metadata[$key]) ? $metadata[$key] : null;
190			}
191
192			public function attach($stream)
			0 ignored issues – show Unused Code introduced 2017-09-18 21:06 UTC by Report Bug Copy Issue Report The parameter `$stream` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
193			{
194			}
195
196			public function detach()
197			{
198			}
199
200			public function close()
201			{
202			}
203
204			protected function toTickOrNotToTick()
205			{
206			if ($this->size === 0) {
207			$this->loop->tick();
208			}
209			}
210
211			/**
212			* For Guzzle v4 compatibility
213			*/
214			public function flush()
215			{
216			}
217			}
218

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Stream::isWritable() A last analyzed 2020-02-26 13:22 UTC

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Stream::isWritable() A
last analyzed 2020-02-26 13:22 UTC