Issues in EnvironmentDetector.php (master) - Issues in master - weew/config - Measure and Improve Code Quality continuously with Scrutinizer

Issues (6)

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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/Weew/Config/EnvironmentDetector.php (1 issue)

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<?php

namespace Weew\Config;

class EnvironmentDetector implements IEnvironmentDetector {
    /**
     * @var array
     */
    protected $environmentRules = [];

    /**
     * @var array
     */
    protected $ignoreRules = [];

    /**
     * EnvironmentDetector constructor.
     */
    public function __construct() {
        $this->addDefaultEnvironmentRules();
        $this->addDefaultIgnoreRules();
    }

    /**
     * @param $string
     *
     * @return null|string
     */
    public function detectEnvironment($string) {
        if ($this->matchIgnoreRules($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());
}
        }

        if ($env = $this->matchEnvironmentRules($string)) {
            return $env;
        }

        return null;
    }

    /**
     * @param $name
     * @param array $abbreviations
     */
    public function addEnvironmentRule($name, array $abbreviations = []) {
        $this->environmentRules = $this->addRule($this->environmentRules, $name, $abbreviations);
    }

    /**
     * @param $name
     * @param array $abbreviations
     */
    public function addIgnoreRule($name, array $abbreviations = []) {
        $this->ignoreRules = $this->addRule($this->ignoreRules, $name, $abbreviations);
    }

    /**
     * @param array $rules
     * @param $name
     * @param array $abbreviations
     *
     * @return array
     */
    protected function addRule(array $rules, $name, array $abbreviations) {
        if (array_get($rules, $name) === null) {
            $rules[$name] = [];
        }

        $patterns = $this->createPatternsForStrings($abbreviations);

        foreach ($patterns as $pattern) {
            $rules[$name][] = $pattern;
        }

        return $rules;
    }

    /**
     * @param $string
     *
     * @return null|string
     */
    protected function matchEnvironmentRules($string) {
        return $this->matchRules($this->environmentRules, $string);
    }

    /**
     * @param $string
     *
     * @return bool
     */
    protected function matchIgnoreRules($string) {
        $match = $this->matchRules($this->ignoreRules, $string);

        return !! $match;
    }

    private function matchRules(array $rules, $string) {
        foreach ($rules as $name => $patterns) {
            foreach ($patterns as $pattern) {
                if (preg_match($pattern, $string) === 1) {
                    return $name;
                }
            }
        }

        return null;
    }

    /**
     * Register default environment rules.
     */
    protected function addDefaultEnvironmentRules() {
        $this->addEnvironmentRule('prod', ['prod', 'production']);
        $this->addEnvironmentRule('stage', ['stage']);
        $this->addEnvironmentRule('dev', ['dev', 'development']);
        $this->addEnvironmentRule('test', ['test']);
    }

    /**
     * Register default ignore rules.
     */
    protected function addDefaultIgnoreRules() {
        $this->addIgnoreRule('dist', ['dist', 'ignore']);
    }

    /**
     * @param array $strings
     *
     * @return string
     */
    protected function createPatternsForStrings(array $strings) {
        $patterns = [];

        foreach ($strings as $string) {
            $string = preg_quote($string);

            // dist
            $patterns[] = s('#^(%s)$#', $string);
            // dist.
            $patterns[] = s('#^(%s)[._+:-]+#', $string);
            // .dist
            $patterns[] = s('#[._+:-]+(%s)$#', $string);
            // .dist.
            $patterns[] = s('#[._+:-]+(%s)[._+:-]+#', $string);
        }

        return $patterns;
    }
}


1			<?php
2
3			namespace Weew\Config;
4
5			class EnvironmentDetector implements IEnvironmentDetector {
6			/**
7			* @var array
8			*/
9			protected $environmentRules = [];
10
11			/**
12			* @var array
13			*/
14			protected $ignoreRules = [];
15
16			/**
17			* EnvironmentDetector constructor.
18			*/
19			public function __construct() {
20			$this->addDefaultEnvironmentRules();
21			$this->addDefaultIgnoreRules();
22			}
23
24			/**
25			* @param $string
26			*
27			* @return null\|string
28			*/
29			public function detectEnvironment($string) {
30			if ($this->matchIgnoreRules($string)) {
31			return false;
			0 ignored issues – show Bug Best Practice introduced 2016-07-21 11:07 UTC by Report Bug Copy Issue Report Show Similar Issues like this The return type of `return false;` (`false`) is incompatible with the return type declared by the interface `Weew\Config\IEnvironment...ctor::detectEnvironment` of type `string\|null`. 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...
32			}
33
34			if ($env = $this->matchEnvironmentRules($string)) {
35			return $env;
36			}
37
38			return null;
39			}
40
41			/**
42			* @param $name
43			* @param array $abbreviations
44			*/
45			public function addEnvironmentRule($name, array $abbreviations = []) {
46			$this->environmentRules = $this->addRule($this->environmentRules, $name, $abbreviations);
47			}
48
49			/**
50			* @param $name
51			* @param array $abbreviations
52			*/
53			public function addIgnoreRule($name, array $abbreviations = []) {
54			$this->ignoreRules = $this->addRule($this->ignoreRules, $name, $abbreviations);
55			}
56
57			/**
58			* @param array $rules
59			* @param $name
60			* @param array $abbreviations
61			*
62			* @return array
63			*/
64			protected function addRule(array $rules, $name, array $abbreviations) {
65			if (array_get($rules, $name) === null) {
66			$rules[$name] = [];
67			}
68
69			$patterns = $this->createPatternsForStrings($abbreviations);
70
71			foreach ($patterns as $pattern) {
72			$rules[$name][] = $pattern;
73			}
74
75			return $rules;
76			}
77
78			/**
79			* @param $string
80			*
81			* @return null\|string
82			*/
83			protected function matchEnvironmentRules($string) {
84			return $this->matchRules($this->environmentRules, $string);
85			}
86
87			/**
88			* @param $string
89			*
90			* @return bool
91			*/
92			protected function matchIgnoreRules($string) {
93			$match = $this->matchRules($this->ignoreRules, $string);
94
95			return !! $match;
96			}
97
98			private function matchRules(array $rules, $string) {
99			foreach ($rules as $name => $patterns) {
100			foreach ($patterns as $pattern) {
101			if (preg_match($pattern, $string) === 1) {
102			return $name;
103			}
104			}
105			}
106
107			return null;
108			}
109
110			/**
111			* Register default environment rules.
112			*/
113			protected function addDefaultEnvironmentRules() {
114			$this->addEnvironmentRule('prod', ['prod', 'production']);
115			$this->addEnvironmentRule('stage', ['stage']);
116			$this->addEnvironmentRule('dev', ['dev', 'development']);
117			$this->addEnvironmentRule('test', ['test']);
118			}
119
120			/**
121			* Register default ignore rules.
122			*/
123			protected function addDefaultIgnoreRules() {
124			$this->addIgnoreRule('dist', ['dist', 'ignore']);
125			}
126
127			/**
128			* @param array $strings
129			*
130			* @return string
131			*/
132			protected function createPatternsForStrings(array $strings) {
133			$patterns = [];
134
135			foreach ($strings as $string) {
136			$string = preg_quote($string);
137
138			// dist
139			$patterns[] = s('#^(%s)$#', $string);
140			// dist.
141			$patterns[] = s('#^(%s)[._+:-]+#', $string);
142			// .dist
143			$patterns[] = s('#[._+:-]+(%s)$#', $string);
144			// .dist.
145			$patterns[] = s('#[._+:-]+(%s)[._+:-]+#', $string);
146			}
147
148			return $patterns;
149			}
150			}
151

weew / config

Issues (6)

Security Analysis no request data

src/Weew/Config/EnvironmentDetector.php (1 issue)

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