Issues in Cache.php (master) - Issues in master - sergeymakinen/yii2-php-file-cache - Measure and Improve Code Quality continuously with Scrutinizer

Issues (1)

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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

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/Cache.php (1 issue)

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<?php
/**
 * Yii 2 PHP file cache
 *
 * @see       https://github.com/sergeymakinen/yii2-php-file-cache
 * @copyright Copyright (c) 2016-2017 Sergey Makinen (https://makinen.ru)
 * @license   https://github.com/sergeymakinen/yii2-php-file-cache/blob/master/LICENSE MIT License
 */

namespace sergeymakinen\yii\phpfilecache;

use yii\caching\FileCache;
use yii\helpers\VarDumper;

/**
 * Cache implements a cache component using PHP files.
 */
class Cache extends FileCache
{
    /**
     * @inheritDoc
     */
    public $cacheFileSuffix = '.php';

    /**
     * @inheritDoc
     */
    public function init()
    {
        parent::init();
        if ($this->serializer === null) {
            $this->serializer = [
                function ($value) {
                    if ($value[0] instanceof ValueWithBootstrap) {
                        if ($value[0]->bootstrap instanceof \Closure) {
                            $bootstrap = '';
                            $namespaces = $this->extractClosureNamespaces($value[0]->bootstrap);
                            if ($namespaces['namespace'] !== null) {
                                $bootstrap .= 'namespace ' . $namespaces['namespace'] . ";\n\n";
                            }
                            foreach ($namespaces['uses'] as $alias => $namespace) {
                                $bootstrap .= 'use ' . $namespace;
                                if (is_string($alias)) {
                                    $bootstrap .= ' as ' . $alias;
                                }
                                $bootstrap .= ";\n";
                            }
                            $bootstrap .= 'call_user_func(' . VarDumper::export($value[0]->bootstrap) . ');';
                        } else {
                            $bootstrap = $value[0]->bootstrap;
                        }
                        $bootstrap = trim($bootstrap) . "\n\n";
                        $value[0] = $value[0]->value;
                    } else {
                        $bootstrap = '';
                    }
                    return "<?php\n\n{$bootstrap}return " . VarDumper::export($value) . ";\n";
                },
                function ($value) {
                    return $value;
                },
            ];
        }
    }

    /**
     * @inheritDoc
     */
    protected function getValue($key)
    {
        $cacheFile = $this->getCacheFile($key);
        if (@filemtime($cacheFile) > time()) {
            /** @noinspection PhpIncludeInspection */
            $cacheValue = @include $cacheFile;
            if (is_array($cacheValue) && array_key_exists(0, $cacheValue)) {
                return $cacheValue;
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());
}
            }
        }

        return false;
    }

    /**
     * Returns Closure's namespace and uses.
     * @param \Closure $closure
     * @return array
     */
    private function extractClosureNamespaces(\Closure $closure)
    {
        $function = new \ReflectionFunction($closure);
        if ($function->getFileName() === false || strpos($function->getFileName(), 'eval()\'d code') !== false) {
            return [
                'namespace' => null,
                'uses' => [],
            ];
        }

        $tokens = token_get_all(implode(array_slice(file($function->getFileName()), 0, $function->getEndLine())));
        return $this->extractNamespaces($tokens);
    }

    /**
     * Extracts namespace and uses from PHP tokens.
     * @param array $tokens
     * @return array
     */
    private function extractNamespaces(array $tokens)
    {
        $closureNamespace = null;
        $closureUses = [];
        $state = null;
        $namespace = null;
        $alias = null;
        foreach ($tokens as $token) {
            if (is_array($token)) {
                if ($state === null && ($token[0] === T_NAMESPACE || $token[0] === T_USE)) {
                    $state = $token[0];
                    $namespace = '';
                } elseif ($state === T_USE && $alias === null && $token[0] === T_AS) {
                    $alias = '';
                } elseif ($state !== null && ($token[0] === T_STRING || $token[0] === T_NS_SEPARATOR)) {
                    if ($alias !== null) {
                        $alias .= $token[1];
                    } else {
                        $namespace .= $token[1];
                    }
                }
            } else {
                if ($state !== null && ($token === ';' || $token === '{')) {
                    if ($alias === null) {
                        if ($state === T_NAMESPACE) {
                            $closureNamespace = $namespace;
                            $closureUses = [];
                        } else {
                            $closureUses[] = $namespace;
                        }
                    } else {
                        $closureUses[$alias] = $namespace;
                        $alias = null;
                    }
                    $state = null;
                    $namespace = null;
                } elseif ($state === T_USE && $token === ',') {
                    if ($alias === null) {
                        $closureUses[] = $namespace;
                    } else {
                        $closureUses[$alias] = $namespace;
                        $alias = null;
                    }
                    $namespace = null;
                }
            }
        }
        return [
            'namespace' => $closureNamespace,
            'uses' => $closureUses,
        ];
    }
}


1		<?php
2		/**
3		* Yii 2 PHP file cache
4		*
5		* @see https://github.com/sergeymakinen/yii2-php-file-cache
6		* @copyright Copyright (c) 2016-2017 Sergey Makinen (https://makinen.ru)
7		* @license https://github.com/sergeymakinen/yii2-php-file-cache/blob/master/LICENSE MIT License
8		*/
9
10		namespace sergeymakinen\yii\phpfilecache;
11
12		use yii\caching\FileCache;
13		use yii\helpers\VarDumper;
14
15		/**
16		* Cache implements a cache component using PHP files.
17		*/
18		class Cache extends FileCache
19		{
20		/**
21		* @inheritDoc
22		*/
23		public $cacheFileSuffix = '.php';
24
25		/**
26		* @inheritDoc
27		*/
28	29	public function init()
29		{
30	29	parent::init();
31	29	if ($this->serializer === null) {
32	29	$this->serializer = [
33		function ($value) {
34	26	if ($value[0] instanceof ValueWithBootstrap) {
35	15	if ($value[0]->bootstrap instanceof \Closure) {
36	10	$bootstrap = '';
37	10	$namespaces = $this->extractClosureNamespaces($value[0]->bootstrap);
38	10	if ($namespaces['namespace'] !== null) {
39	10	$bootstrap .= 'namespace ' . $namespaces['namespace'] . ";\n\n";
40	10	}
41	10	foreach ($namespaces['uses'] as $alias => $namespace) {
42	10	$bootstrap .= 'use ' . $namespace;
43	10	if (is_string($alias)) {
44	5	$bootstrap .= ' as ' . $alias;
45	5	}
46	10	$bootstrap .= ";\n";
47	10	}
48	10	$bootstrap .= 'call_user_func(' . VarDumper::export($value[0]->bootstrap) . ');';
49	10	} else {
50	5	$bootstrap = $value[0]->bootstrap;
51		}
52	15	$bootstrap = trim($bootstrap) . "\n\n";
53	15	$value[0] = $value[0]->value;
54	15	} else {
55	11	$bootstrap = '';
56		}
57	26	return "<?php\n\n{$bootstrap}return " . VarDumper::export($value) . ";\n";
58	29	},
59	29	function ($value) {
60	26	return $value;
61	29	},
62		];
63	29	}
64	29	}
65
66		/**
67		* @inheritDoc
68		*/
69	28	protected function getValue($key)
70		{
71	28	$cacheFile = $this->getCacheFile($key);
72	28	if (@filemtime($cacheFile) > time()) {
73		/** @noinspection PhpIncludeInspection */
74	27	$cacheValue = @include $cacheFile;
75	27	if (is_array($cacheValue) && array_key_exists(0, $cacheValue)) {
76	26	return $cacheValue;
		0 ignored issues – show Bug Best Practice introduced 2016-12-16 01:24 UTC by Report Bug Copy Issue Report Show Similar Issues like this The return type of `return $cacheValue;` (`array`) is incompatible with the return type of the parent method `yii\caching\FileCache::getValue` of type `string\|false`. 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...
77		}
78	1	}
79
80	2	return false;
81		}
82
83		/**
84		* Returns Closure's namespace and uses.
85		* @param \Closure $closure
86		* @return array
87		*/
88	11	private function extractClosureNamespaces(\Closure $closure)
89		{
90	11	$function = new \ReflectionFunction($closure);
91	11	if ($function->getFileName() === false \|\| strpos($function->getFileName(), 'eval()\'d code') !== false) {
92		return [
93	1	'namespace' => null,
94	1	'uses' => [],
95	1	];
96		}
97
98	11	$tokens = token_get_all(implode(array_slice(file($function->getFileName()), 0, $function->getEndLine())));
99	11	return $this->extractNamespaces($tokens);
100		}
101
102		/**
103		* Extracts namespace and uses from PHP tokens.
104		* @param array $tokens
105		* @return array
106		*/
107	11	private function extractNamespaces(array $tokens)
108		{
109	11	$closureNamespace = null;
110	11	$closureUses = [];
111	11	$state = null;
112	11	$namespace = null;
113	11	$alias = null;
114	11	foreach ($tokens as $token) {
115	11	if (is_array($token)) {
116	11	if ($state === null && ($token[0] === T_NAMESPACE \|\| $token[0] === T_USE)) {
117	11	$state = $token[0];
118	11	$namespace = '';
119	11	} elseif ($state === T_USE && $alias === null && $token[0] === T_AS) {
120	6	$alias = '';
121	11	} elseif ($state !== null && ($token[0] === T_STRING \|\| $token[0] === T_NS_SEPARATOR)) {
122	11	if ($alias !== null) {
123	6	$alias .= $token[1];
124	6	} else {
125	11	$namespace .= $token[1];
126		}
127	11	}
128	11	} else {
129	11	if ($state !== null && ($token === ';' \|\| $token === '{')) {
130	11	if ($alias === null) {
131	11	if ($state === T_NAMESPACE) {
132	11	$closureNamespace = $namespace;
133	11	$closureUses = [];
134	11	} else {
135	11	$closureUses[] = $namespace;
136		}
137	11	} else {
138	6	$closureUses[$alias] = $namespace;
139	6	$alias = null;
140		}
141	11	$state = null;
142	11	$namespace = null;
143	11	} elseif ($state === T_USE && $token === ',') {
144	6	if ($alias === null) {
145	6	$closureUses[] = $namespace;
146	6	} else {
147	6	$closureUses[$alias] = $namespace;
148	6	$alias = null;
149		}
150	6	$namespace = null;
151	6	}
152		}
153	11	}
154		return [
155	11	'namespace' => $closureNamespace,
156	11	'uses' => $closureUses,
157	11	];
158		}
159		}
160

sergeymakinen / yii2-php-file-cache

Issues (1)

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src/Cache.php (1 issue)

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