Issues in ReferencedValue.php (master) - Issues in master - gamringer/JSONPointer - Measure and Improve Code Quality continuously with Scrutinizer

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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

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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.

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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

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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.

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src/ReferencedValue.php (1 issue)

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Bug 1

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Minor 1

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<?php
declare(strict_types=1);

namespace gamringer\JSONPointer;

use gamringer\JSONPointer\Access\Accesses;
use gamringer\JSONPointer\Access\ArrayAccessor;

class ReferencedValue
{
    private $owner;
    private $token;
    private $accessor;

    private $isNext = false;

    public function __construct(&$owner, $token = null, Accesses $accessor = null)
    {
        $this->owner = &$owner;
        $this->token = $token;
        $this->accessor = $accessor;

        $this->assertPropertiesAccessible();

        $this->assertAccessorCovers();

        if ($token == '-' && $this->isIndexedArray()) {
            $this->isNext = true;
        }
    }

    public function hasValue()
    {
        $this->assertElementExists();
    }

    public function getValue()
    {
        $this->assertElementExists();

        if ($this->token === null) {
            return $this->owner;
        }

        return $this->accessor->getValue($this->owner, $this->token);
    }

    public function setValue(&$value)
    {
        if ($this->isNext) {
            $this->owner[] = &$value;

            return new VoidValue($this->owner, (string)(sizeof($this->owner)-1));
        }

        if ($this->token === null) {
            $previousValue = $this->owner;

            $this->owner = $value;

            return $previousValue;
        }
        $previousValue = $this->accessor->getValue($this->owner, $this->token);

        $this->accessor->setValue($this->owner, $this->token, $value);

        return $previousValue;
    }

    public function insertValue($value)
    {
        if ($this->insertReplaces()) {
            return $this->setValue($value);
        }

        $this->assertInsertableToken();

        array_splice($this->owner, (int)$this->token, 0, $value);

        return new VoidValue($this->owner, $this->token);
    }

    public function unsetValue()
    {
        $this->assertElementExists();

        if ($this->token === null) {
            $previousValue = $this->owner;

            $this->owner = new VoidValue();

            return $previousValue;
        }

        $previousValue = $this->accessor->getValue($this->owner, $this->token);

        $this->accessor->unsetValue($this->owner, $this->token);

        return $previousValue;
    }
    
    protected function assertAccessorCovers()
    {
        if ($this->accessor === null) {
            return;
        }

        if (!$this->accessor->covers($this->owner)) {
            throw new Exception('Provided Accessor does not handle owner');
        }
    }

    protected function assertPropertiesAccessible()
    {
        if ($this->accessor === null && $this->token !== null) {
            throw new Exception('Properties are not accessible');
        }
    }

    private function assertInsertableToken()
    {
        if (!(array_key_exists($this->token, $this->owner) || $this->token == sizeof($this->owner))) {
            throw new Exception('Index is out of range');
        }
    }

    private function insertReplaces(): bool
    {
        return $this->isNext
            || filter_var($this->token, FILTER_VALIDATE_INT) === false
            || !$this->isIndexedArray()
        ;
    }

    private function isIndexedArray(): bool
    {
        return $this->accessor instanceof ArrayAccessor
            && $this->accessor->isIndexedArray($this->owner);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

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

    private function assertElementExists()
    {
        $this->assertOwnerExists();

        if ($this->token === null) {
            return;
        }

        if (!$this->accessor->hasValue($this->owner, $this->token)) {
            throw new Exception('Referenced value does not exist');
        }
    }

    private function assertOwnerExists()
    {
        if ($this->owner instanceof VoidValue) {
            throw new Exception('Referenced value does not exist');
        }
    }
}


1			<?php
2			declare(strict_types=1);
3
4			namespace gamringer\JSONPointer;
5
6			use gamringer\JSONPointer\Access\Accesses;
7			use gamringer\JSONPointer\Access\ArrayAccessor;
8
9			class ReferencedValue
10			{
11			private $owner;
12			private $token;
13			private $accessor;
14
15			private $isNext = false;
16
17			public function __construct(&$owner, $token = null, Accesses $accessor = null)
18			{
19			$this->owner = &$owner;
20			$this->token = $token;
21			$this->accessor = $accessor;
22
23			$this->assertPropertiesAccessible();
24
25			$this->assertAccessorCovers();
26
27			if ($token == '-' && $this->isIndexedArray()) {
28			$this->isNext = true;
29			}
30			}
31
32			public function hasValue()
33			{
34			$this->assertElementExists();
35			}
36
37			public function getValue()
38			{
39			$this->assertElementExists();
40
41			if ($this->token === null) {
42			return $this->owner;
43			}
44
45			return $this->accessor->getValue($this->owner, $this->token);
46			}
47
48			public function setValue(&$value)
49			{
50			if ($this->isNext) {
51			$this->owner[] = &$value;
52
53			return new VoidValue($this->owner, (string)(sizeof($this->owner)-1));
54			}
55
56			if ($this->token === null) {
57			$previousValue = $this->owner;
58
59			$this->owner = $value;
60
61			return $previousValue;
62			}
63			$previousValue = $this->accessor->getValue($this->owner, $this->token);
64
65			$this->accessor->setValue($this->owner, $this->token, $value);
66
67			return $previousValue;
68			}
69
70			public function insertValue($value)
71			{
72			if ($this->insertReplaces()) {
73			return $this->setValue($value);
74			}
75
76			$this->assertInsertableToken();
77
78			array_splice($this->owner, (int)$this->token, 0, $value);
79
80			return new VoidValue($this->owner, $this->token);
81			}
82
83			public function unsetValue()
84			{
85			$this->assertElementExists();
86
87			if ($this->token === null) {
88			$previousValue = $this->owner;
89
90			$this->owner = new VoidValue();
91
92			return $previousValue;
93			}
94
95			$previousValue = $this->accessor->getValue($this->owner, $this->token);
96
97			$this->accessor->unsetValue($this->owner, $this->token);
98
99			return $previousValue;
100			}
101
102			protected function assertAccessorCovers()
103			{
104			if ($this->accessor === null) {
105			return;
106			}
107
108			if (!$this->accessor->covers($this->owner)) {
109			throw new Exception('Provided Accessor does not handle owner');
110			}
111			}
112
113			protected function assertPropertiesAccessible()
114			{
115			if ($this->accessor === null && $this->token !== null) {
116			throw new Exception('Properties are not accessible');
117			}
118			}
119
120			private function assertInsertableToken()
121			{
122			if (!(array_key_exists($this->token, $this->owner) \|\| $this->token == sizeof($this->owner))) {
123			throw new Exception('Index is out of range');
124			}
125			}
126
127			private function insertReplaces(): bool
128			{
129			return $this->isNext
130			\|\| filter_var($this->token, FILTER_VALIDATE_INT) === false
131			\|\| !$this->isIndexedArray()
132			;
133			}
134
135			private function isIndexedArray(): bool
136			{
137			return $this->accessor instanceof ArrayAccessor
138			&& $this->accessor->isIndexedArray($this->owner);
			0 ignored issues – show Bug introduced 2016-03-08 04:11 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like `$this->owner` can also be of type `object<gamringer\JSONPointer\VoidValue>`; however, `gamringer\JSONPointer\Ac...essor::isIndexedArray()` does only seem to accept `array`, maybe add an additional type check? If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check: /** * @return array\|string */ function returnsDifferentValues($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...
139			}
140
141			private function assertElementExists()
142			{
143			$this->assertOwnerExists();
144
145			if ($this->token === null) {
146			return;
147			}
148
149			if (!$this->accessor->hasValue($this->owner, $this->token)) {
150			throw new Exception('Referenced value does not exist');
151			}
152			}
153
154			private function assertOwnerExists()
155			{
156			if ($this->owner instanceof VoidValue) {
157			throw new Exception('Referenced value does not exist');
158			}
159			}
160			}
161

gamringer / JSONPointer

Issues (1)

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src/ReferencedValue.php (1 issue)

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