Issues in Buffer.php (master) - Issues in master - AlexMasterov/fake-socket - Measure and Improve Code Quality continuously with Scrutinizer

Issues (25)

Security Analysis no request data

Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

src/Stream/Buffer.php (13 issues)

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<?php
declare(strict_types=1);

namespace FakeSocket\Stream;

use FakeSocket\StreamWrapper;

final class Buffer implements StreamWrapper
{
    /** @var string */
    private $stream = '';

    /** @var int */
    private $position = 0;

    /** @var int */
    private $readCount = 0;

    /** @var int */
    private $writeCount = 0;

    /** @var array */
    private $limits = [
        'read'        => -1,
        'read_after'  => 0,
        'read_every'  => 1,
        'write'       => -1,
        'write_after' => 0,
        'write_every' => 1,
    ];

    public function stream_open($path, $mode, $options, &$opened_path)

    {
        $components = parse_url($path);

        static $query = [];

        if (isset($components['query'])) {
            parse_str($components['query'], $query);
        }

        $this->configureLimits($query);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

        return true;
    }

    public function stream_eof()

    {
        return $this->position >= strlen($this->stream);
    }

    public function stream_tell()

    {
        return $this->position;
    }

    public function stream_write($data)

    {
        ++$this->writeCount;

        if (!$this->canWrite()) {
            return false;
        }

        $left = substr($this->stream, 0, $this->position);

        $this->stream = "{$left}{$data}";
        $this->position += $bytesWritten = strlen($data);

        return $bytesWritten;
    }

    public function stream_read($count)

    {
        ++$this->readCount;

        if (!$this->canRead()) {
            return false;
        }

        $data = substr($this->stream, $this->position, $count);

        if ($data) {
            $this->position += strlen($data);
        }

        return $data;
    }

    public function stream_seek($offset, $whence)

    {
        static $values = [SEEK_SET, SEEK_CUR, SEEK_END];

        if (in_array($whence, $values)) {
            if (SEEK_END === $whence) {
                $offset = strlen($this->stream) + $offset;
            }

            if ($offset >= 0) {
                $this->position = $offset;
                return true;
            }
        }

        return false;
    }

    public function stream_stat()

    {
        return [];
    }

    public function stream_truncate($new_size)

    {
        $currentLength = strlen($this->stream);

        if ($new_size > $currentLength) {
            $multiplier = $new_size - $currentLength;
            $this->stream .= str_repeat(chr(0), $multiplier);

            return true;
        }

        $this->stream = substr($this->stream, 0, $new_size);

        return true;
    }

    public function stream_set_option($option, $arg1, $arg2)

    {
        return true;
    }

    private function configureLimits(array $query): void
    {
        foreach (array_keys($this->limits) as $limit) {
            if (!isset($query[$limit])) {
                continue;
            }

            if (false !== strrpos($limit, 'every')) {
                $query[$limit] = max(1, (int) $query[$limit]);
            }

            $this->limits[$limit] = (int) $query[$limit];
        }
    }

    private function canRead(): bool
    {
        $noLimit = $this->readCount !== $this->limits['read'] + 1;

        return $noLimit
            && $this->readCount > $this->limits['read_after']
            && $this->readCount % $this->limits['read_every'] === 0;
    }

    private function canWrite(): bool
    {
        $noLimit = $this->writeCount !== $this->limits['write'] + 1;

        return $noLimit
            && $this->writeCount > $this->limits['write_after']
            && $this->writeCount % $this->limits['write_every'] === 0;
    }
}


1		<?php
2		declare(strict_types=1);
3
4		namespace FakeSocket\Stream;
5
6		use FakeSocket\StreamWrapper;
7
8		final class Buffer implements StreamWrapper
9		{
10		/** @var string */
11		private $stream = '';
12
13		/** @var int */
14		private $position = 0;
15
16		/** @var int */
17		private $readCount = 0;
18
19		/** @var int */
20		private $writeCount = 0;
21
22		/** @var array */
23		private $limits = [
24		'read' => -1,
25		'read_after' => 0,
26		'read_every' => 1,
27		'write' => -1,
28		'write_after' => 0,
29		'write_every' => 1,
30		];
31
32	11	public function stream_open($path, $mode, $options, &$opened_path)
		0 ignored issues – show Unused Code introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this The parameter `$mode` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history... Unused Code introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this The parameter `$options` 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... Unused Code introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this The parameter `$opened_path` 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... Coding Style introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this Method name "Buffer::stream_open" is not in camel caps format Loading history...
33		{
34	11	$components = parse_url($path);
35
36	11	static $query = [];
37
38	11	if (isset($components['query'])) {
39	4	parse_str($components['query'], $query);
40		}
41
42	11	$this->configureLimits($query);
		0 ignored issues – show Bug introduced 2017-08-17 04:02 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like `$query` can also be of type `null`; however, `FakeSocket\Stream\Buffer::configureLimits()` does only seem to accept `array`, maybe add an additional type check? If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check: /** * @return array\|string */ function returnsDifferentValues($x) { if ($x) { return 'foo'; } return array(); } $x = returnsDifferentValues($y); if (is_array($x)) { // $x is an array. } If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue. Loading history...
43
44	11	return true;
45		}
46
47	7	public function stream_eof()
		0 ignored issues – show Coding Style introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this Method name "Buffer::stream_eof" is not in camel caps format Loading history...
48		{
49	7	return $this->position >= strlen($this->stream);
50		}
51
52	3	public function stream_tell()
		0 ignored issues – show Coding Style introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this Method name "Buffer::stream_tell" is not in camel caps format Loading history...
53		{
54	3	return $this->position;
55		}
56
57	8	public function stream_write($data)
		0 ignored issues – show Coding Style introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this Method name "Buffer::stream_write" is not in camel caps format Loading history...
58		{
59	8	++$this->writeCount;
60
61	8	if (!$this->canWrite()) {
62	2	return false;
63		}
64
65	8	$left = substr($this->stream, 0, $this->position);
66
67	8	$this->stream = "{$left}{$data}";
68	8	$this->position += $bytesWritten = strlen($data);
69
70	8	return $bytesWritten;
71		}
72
73	3	public function stream_read($count)
		0 ignored issues – show Coding Style introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this Method name "Buffer::stream_read" is not in camel caps format Loading history...
74		{
75	3	++$this->readCount;
76
77	3	if (!$this->canRead()) {
78	1	return false;
79		}
80
81	3	$data = substr($this->stream, $this->position, $count);
82
83	3	if ($data) {
84	2	$this->position += strlen($data);
85		}
86
87	3	return $data;
88		}
89
90	3	public function stream_seek($offset, $whence)
		0 ignored issues – show Coding Style introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this Method name "Buffer::stream_seek" is not in camel caps format Loading history...
91		{
92	3	static $values = [SEEK_SET, SEEK_CUR, SEEK_END];
93
94	3	if (in_array($whence, $values)) {
95	3	if (SEEK_END === $whence) {
96	1	$offset = strlen($this->stream) + $offset;
97		}
98
99	3	if ($offset >= 0) {
100	3	$this->position = $offset;
101	3	return true;
102		}
103		}
104
105		return false;
106		}
107
108	2	public function stream_stat()
		0 ignored issues – show Coding Style introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this Method name "Buffer::stream_stat" is not in camel caps format Loading history...
109		{
110	2	return [];
111		}
112
113	2	public function stream_truncate($new_size)
		0 ignored issues – show Coding Style introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this Method name "Buffer::stream_truncate" is not in camel caps format Loading history...
114		{
115	2	$currentLength = strlen($this->stream);
116
117	2	if ($new_size > $currentLength) {
118	1	$multiplier = $new_size - $currentLength;
119	1	$this->stream .= str_repeat(chr(0), $multiplier);
120
121	1	return true;
122		}
123
124	1	$this->stream = substr($this->stream, 0, $new_size);
125
126	1	return true;
127		}
128
129	1	public function stream_set_option($option, $arg1, $arg2)
		0 ignored issues – show Coding Style introduced 2017-08-17 01:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this Method name "Buffer::stream_set_option" is not in camel caps format Loading history...
130		{
131	1	return true;
132		}
133
134	11	private function configureLimits(array $query): void
135		{
136	11	foreach (array_keys($this->limits) as $limit) {
137	11	if (!isset($query[$limit])) {
138	11	continue;
139		}
140
141	10	if (false !== strrpos($limit, 'every')) {
142	2	$query[$limit] = max(1, (int) $query[$limit]);
143		}
144
145	10	$this->limits[$limit] = (int) $query[$limit];
146		}
147	11	}
148
149	3	private function canRead(): bool
150		{
151	3	$noLimit = $this->readCount !== $this->limits['read'] + 1;
152
153	3	return $noLimit
154	3	&& $this->readCount > $this->limits['read_after']
155	3	&& $this->readCount % $this->limits['read_every'] === 0;
156		}
157
158	8	private function canWrite(): bool
159		{
160	8	$noLimit = $this->writeCount !== $this->limits['write'] + 1;
161
162	8	return $noLimit
163	8	&& $this->writeCount > $this->limits['write_after']
164	8	&& $this->writeCount % $this->limits['write_every'] === 0;
165		}
166		}
167

AlexMasterov / fake-socket

Issues (25)

Security Analysis no request data

src/Stream/Buffer.php (13 issues)

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