FunctionAvailabilityCheck - Code Metrics - Inspection of "Move install task test to composer namespace" - tenside/core - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( c612e7...f3e1c8 )

by Christian

created 2016-02-29 18:12 UTC

FunctionAvailabilityCheck A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	113
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Metric	Value
wmc	14
lcom	1
cbo	0
dl	0
loc	113
rs	10

6 Methods

Rating	Name	Size	Complexity
B	isFunctionEnabled()	8	5
A	isFunctionDefined()	4	1
A	isFunctionBlacklistedInSuhosin()	12	3
A	isFunctionBlacklistedInPhpIni()	8	2
A	isFunctionsMentionedInList()	8	2
A	prepareList()	4	1

<?php

/**
 * This file is part of tenside/core.
 *
 * (c) Christian Schiffler <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * This project is provided in good faith and hope to be usable by anyone.
 *
 * @package    tenside/core
 * @author     Christian Schiffler <[email protected]>
 * @copyright  2015 Christian Schiffler <[email protected]>
 * @license    https://github.com/tenside/core/blob/master/LICENSE MIT
 * @link       https://github.com/tenside/core
 * @filesource
 */

namespace Tenside\Core\Util;

/**
 * This class provides methods to check if certain functions have been disabled in PHP or are callable.
 */
class FunctionAvailabilityCheck

{
    /**
     * Cache.
     *
     * @var string[]
     */
    private static $blackListSuhosin;

    /**
     * Cache.
     *
     * @var string[]
     */
    private static $blackListPhpIni;


    /**
     * Check if function is defined.
     *
     * @param string $function  The function to test.
     *
     * @param string $extension The optional name of an php extension providing said function.

     *
     * @return bool
     */
    public static function isFunctionEnabled($function, $extension = null)
    {
        return
            (null === $extension || extension_loaded($extension))
            && !static::isFunctionBlacklistedInPhpIni($function)
            && !static::isFunctionBlacklistedInSuhosin($function)
            && static::isFunctionDefined($function);
    }

    /**
     * Check if function is defined.
     *
     * @param string $function The function to test.
     *
     * @return bool
     */
    public static function isFunctionDefined($function)
    {
        return function_exists($function);
    }

    /**
     * Check if function is blacklisted in Suhosin.
     *
     * @param string $function The function to test.
     *
     * @return bool
     */
    public static function isFunctionBlacklistedInSuhosin($function)
    {
        if (!extension_loaded('suhosin')) {
            return false;
        }

        if (!isset(static::$blackListSuhosin)) {
class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}
            static::$blackListSuhosin = static::prepareList(ini_get('suhosin.executor.func.blacklist'));
class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}
        }

        return static::isFunctionsMentionedInList($function, static::$blackListSuhosin);
class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}
    }

    /**
     * Check if method is blacklisted in Suhosin.
     *
     * @param string $function The function to test.
     *
     * @return bool
     */
    public static function isFunctionBlacklistedInPhpIni($function)
    {
        if (!isset(static::$blackListPhpIni)) {
class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}
            static::$blackListPhpIni = static::prepareList(ini_get('disable_functions'));
class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}
        }

        return static::isFunctionsMentionedInList($function, static::$blackListPhpIni);
class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}
    }

    /**
     * Check if a function is mentioned in the passed (comma separated) list.
     *
     * @param string   $function The function to test.
     *
     * @param string[] $list     The function list.
     *
     * @return bool
     */
    public static function isFunctionsMentionedInList($function, $list)
    {
        if (empty($list)) {
            return false;
        }

        return (false !== array_search($function, $list));
    }

    /**
     * Explode a list.
     *
     * @param string $list The list.
     *
     * @return string[]
     */
    private static function prepareList($list)
    {
        return array_map('strtolower', array_map('trim', explode(',', $list, -1)));
    }
}


1			<?php
2
3			/**
4			* This file is part of tenside/core.
5			*
6			* (c) Christian Schiffler <[email protected]>
7			*
8			* For the full copyright and license information, please view the LICENSE
9			* file that was distributed with this source code.
10			*
11			* This project is provided in good faith and hope to be usable by anyone.
12			*
13			* @package tenside/core
14			* @author Christian Schiffler <[email protected]>
15			* @copyright 2015 Christian Schiffler <[email protected]>
16			* @license https://github.com/tenside/core/blob/master/LICENSE MIT
17			* @link https://github.com/tenside/core
18			* @filesource
19			*/
20
21			namespace Tenside\Core\Util;
22
23			/**
24			* This class provides methods to check if certain functions have been disabled in PHP or are callable.
25			*/
26			class FunctionAvailabilityCheck
			1 ignored issue – show Coding Style introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report `FunctionAvailabilityCheck` does not seem to conform to the naming convention (`Utils?$`). This check examines a number of code elements and verifies that they conform to the given naming conventions. You can set conventions for local variables, abstract classes, utility classes, constant, properties, methods, parameters, interfaces, classes, exceptions and special methods. Loading history...
27			{
28			/**
29			* Cache.
30			*
31			* @var string[]
32			*/
33			private static $blackListSuhosin;
34
35			/**
36			* Cache.
37			*
38			* @var string[]
39			*/
40			private static $blackListPhpIni;
41
42
43			/**
44			* Check if function is defined.
45			*
46			* @param string $function The function to test.
47			*
48			* @param string $extension The optional name of an php extension providing said function.
			0 ignored issues – show Documentation introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report Should the type for parameter `$extension` not be `string\|null`? This check looks for `@param` annotations where the type inferred by our type inference engine differs from the declared type. It makes a suggestion as to what type it considers more descriptive. Most often this is a case of a parameter that can be null in addition to its declared types. Loading history...
49			*
50			* @return bool
51			*/
52			public static function isFunctionEnabled($function, $extension = null)
53			{
54			return
55			(null === $extension \|\| extension_loaded($extension))
56			&& !static::isFunctionBlacklistedInPhpIni($function)
57			&& !static::isFunctionBlacklistedInSuhosin($function)
58			&& static::isFunctionDefined($function);
59			}
60
61			/**
62			* Check if function is defined.
63			*
64			* @param string $function The function to test.
65			*
66			* @return bool
67			*/
68			public static function isFunctionDefined($function)
69			{
70			return function_exists($function);
71			}
72
73			/**
74			* Check if function is blacklisted in Suhosin.
75			*
76			* @param string $function The function to test.
77			*
78			* @return bool
79			*/
80			public static function isFunctionBlacklistedInSuhosin($function)
81			{
82			if (!extension_loaded('suhosin')) {
83			return false;
84			}
85
86			if (!isset(static::$blackListSuhosin)) {
			0 ignored issues – show Bug introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report Since `$blackListSuhosin` is declared private, accessing it with `static` will lead to errors in possible sub-classes; consider using `self`, or increasing the visibility of `$blackListSuhosin` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static $someVariable; public static function getSomeVariable() { return static::$someVariable; } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { } YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class SomeClass { private static $someVariable; public static function getSomeVariable() { return self::$someVariable; // self works fine with private. } } Loading history...
87			static::$blackListSuhosin = static::prepareList(ini_get('suhosin.executor.func.blacklist'));
			0 ignored issues – show Bug introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report Since `$blackListSuhosin` is declared private, accessing it with `static` will lead to errors in possible sub-classes; consider using `self`, or increasing the visibility of `$blackListSuhosin` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static $someVariable; public static function getSomeVariable() { return static::$someVariable; } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { } YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class SomeClass { private static $someVariable; public static function getSomeVariable() { return self::$someVariable; // self works fine with private. } } Loading history... Bug introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report Since `prepareList()` is declared private, calling it with `static` will lead to errors in possible sub-classes. You can either use `self`, or increase the visibility of `prepareList()` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static function getTemperature() { return "3422 °C"; } public static function getSomeVariable() { return static::getTemperature(); } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { private static function getTemperature() { return "-182 °C"; } } print YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class YourClass { private static function getTemperature() { return "3422 °C"; } public static function getSomeVariable() { return self::getTemperature(); } } Loading history...
88			}
89
90			return static::isFunctionsMentionedInList($function, static::$blackListSuhosin);
			0 ignored issues – show Bug introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report Since `$blackListSuhosin` is declared private, accessing it with `static` will lead to errors in possible sub-classes; consider using `self`, or increasing the visibility of `$blackListSuhosin` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static $someVariable; public static function getSomeVariable() { return static::$someVariable; } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { } YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class SomeClass { private static $someVariable; public static function getSomeVariable() { return self::$someVariable; // self works fine with private. } } Loading history...
91			}
92
93			/**
94			* Check if method is blacklisted in Suhosin.
95			*
96			* @param string $function The function to test.
97			*
98			* @return bool
99			*/
100			public static function isFunctionBlacklistedInPhpIni($function)
101			{
102			if (!isset(static::$blackListPhpIni)) {
			0 ignored issues – show Bug introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report Since `$blackListPhpIni` is declared private, accessing it with `static` will lead to errors in possible sub-classes; consider using `self`, or increasing the visibility of `$blackListPhpIni` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static $someVariable; public static function getSomeVariable() { return static::$someVariable; } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { } YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class SomeClass { private static $someVariable; public static function getSomeVariable() { return self::$someVariable; // self works fine with private. } } Loading history...
103			static::$blackListPhpIni = static::prepareList(ini_get('disable_functions'));
			0 ignored issues – show Bug introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report Since `$blackListPhpIni` is declared private, accessing it with `static` will lead to errors in possible sub-classes; consider using `self`, or increasing the visibility of `$blackListPhpIni` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static $someVariable; public static function getSomeVariable() { return static::$someVariable; } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { } YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class SomeClass { private static $someVariable; public static function getSomeVariable() { return self::$someVariable; // self works fine with private. } } Loading history... Bug introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report Since `prepareList()` is declared private, calling it with `static` will lead to errors in possible sub-classes. You can either use `self`, or increase the visibility of `prepareList()` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static function getTemperature() { return "3422 °C"; } public static function getSomeVariable() { return static::getTemperature(); } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { private static function getTemperature() { return "-182 °C"; } } print YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class YourClass { private static function getTemperature() { return "3422 °C"; } public static function getSomeVariable() { return self::getTemperature(); } } Loading history...
104			}
105
106			return static::isFunctionsMentionedInList($function, static::$blackListPhpIni);
			0 ignored issues – show Bug introduced 2015-11-24 04:55 UTC by Report Bug Copy Issue Report Since `$blackListPhpIni` is declared private, accessing it with `static` will lead to errors in possible sub-classes; consider using `self`, or increasing the visibility of `$blackListPhpIni` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static $someVariable; public static function getSomeVariable() { return static::$someVariable; } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { } YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class SomeClass { private static $someVariable; public static function getSomeVariable() { return self::$someVariable; // self works fine with private. } } Loading history...
107			}
108
109			/**
110			* Check if a function is mentioned in the passed (comma separated) list.
111			*
112			* @param string $function The function to test.
113			*
114			* @param string[] $list The function list.
115			*
116			* @return bool
117			*/
118			public static function isFunctionsMentionedInList($function, $list)
119			{
120			if (empty($list)) {
121			return false;
122			}
123
124			return (false !== array_search($function, $list));
125			}
126
127			/**
128			* Explode a list.
129			*
130			* @param string $list The list.
131			*
132			* @return string[]
133			*/
134			private static function prepareList($list)
135			{
136			return array_map('strtolower', array_map('trim', explode(',', $list, -1)));
137			}
138			}
139

tenside / core

Push — master ( c612e7...f3e1c8 )

FunctionAvailabilityCheck A

Complexity

Size/Duplication

Coupling/Cohesion

6 Methods

Duplication Side-by-Side

Filter issues like