Sanitize::strangeThingsAreSubmitted() - Code Metrics - gjerokrsteski/pimf-framework - Measure and Improve Code Quality continuously with Scrutinizer

Sanitize::strangeThingsAreSubmitted() A
last analyzed 2019-05-14 14:03 UTC

↳ Parent: Sanitize

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
nc	1
nop	1
dl	0
loc	4
rs	10
c	0
b	0
f	0

<?php
/**
 * Util
 *
 * @copyright Copyright (c)  Gjero Krsteski (http://krsteski.de)
 * @license   http://opensource.org/licenses/MIT MIT License
 */
namespace Pimf\Util\Character;

/**
 * String
 *
 * @package Util_String
 * @author  Gjero Krsteski <[email protected]>
 */
class Sanitize
{

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function removeNullCharacters($string)
    {
        return preg_replace(array('/\0+/', '/(\\\\0)+/'), '', $string);
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function validateStandardCharacterEntities($string)
    {
        return preg_replace('#(&\#*\w+)[\x00-\x20]+;#u', "\\1;", $string);
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function validateUTF16TwoByteEncoding($string)
    {
        return preg_replace('#(&\#x*)([0-9A-F]+);*#iu', "\\1\\2;", $string);
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function strangeThingsAreSubmitted($string)
    {
        return preg_replace(array("/%u0([a-z0-9]{3})/i", "/%([a-z0-9]{2})/i"), "&#x\\1;", $string);
    }

    /**
     * @param string $string  String to check
     * @param string $charset Character set (default ISO-8859-1)
     *
     * @return mixed
     */
    public static function convertCharacterEntitiesToASCII($string, $charset)
    {
        $matches = array();

        if (preg_match_all("/<(.+?)>/si", $string, $matches)) {

            $count = count($matches['0']);

            for ($i = 0; $i < $count; $i++) {
                $string = str_replace(
                    $matches['1'][$i],
                    html_entity_decode($matches['1'][$i], ENT_COMPAT, $charset),
                    $string
                );
            }
        }

        return $string;
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function convertAllTabsToSpaces($string)
    {
        return preg_replace("#\t+#", " ", $string);
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function makesPhpTagsSafe($string)
    {
        return str_replace(
            array('<?php', '<?PHP', '<?', '?>'),
            array('&lt;?php', '&lt;?PHP', '&lt;?', '?&gt;'),
            $string
        );
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function compactAnyExplodedWords($string)
    {
        $words = array('javascript', 'vbscript', 'script', 'applet', 'alert', 'document', 'write', 'cookie', 'window');
        foreach ($words as $word) {
            $temp = '';
            $len = strlen($word);
            for ($i = 0; $i < $len; $i++) {
                $temp .= substr($word, $i, 1) . "\s*";
            }
            $temp = substr($temp, 0, -3);
            $string = preg_replace('#' . $temp . '#s', $word, $string);
            $string = preg_replace('#' . ucfirst($temp) . '#s', ucfirst($word), $string);
        }

        return $string;
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function removeDisallowedJavaScriptInLinksOrImgTags($string)
    {
        $string = preg_replace(
            "#<a.+?href=.*?(alert\(|alert&\#40;|javascript\:|window\.|document\.|\.cookie|<script|<xss).*?\>.*?</a>#si",
            "",
            $string
        );
        $string = preg_replace(
            "#<img.+?src=.*?(alert\(|alert&\#40;|javascript\:|window\.|document\.|\.cookie|<script|<xss).*?\>#si",
            "",
            $string
        );

        return preg_replace("#<(script|xss).*?\>#si", "", $string);
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function removeJavaScriptEventHandlers($string)
    {
        return preg_replace(
            '#(<[^>]+.*?)(onblur|onchange|onclick|onfocus|onload|onmouseover|onmouseup|'
            . 'onmousedown|onselect|onsubmit|onunload|onkeypress|onkeydown|onkeyup|onresize)[^>]*>#iU',
            "\\1>",
            $string
        );
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function healNaughtyHTMLElements($string)
    {
        return preg_replace(
            '#<(/*\s*)(alert|applet|basefont|base|behavior|bgsound|'
            . 'blink|body|embed|expression|form|frameset|frame|head|html|ilayer|iframe|input'
            . '|layer|link|meta|object|plaintext|style|script|textarea|title|xml|xss)([^>]*)>#is',
            "&lt;\\1\\2\\3&gt;",
            $string
        );
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function healNaughtyScriptingElements($string)
    {
        return preg_replace(
            '#(alert|cmd|passthru|eval|exec|system|fopen|fsockopen|'
            . 'file|file_get_contents|readfile|unlink)(\s*)\((.*?)\)#si',
            "\\1\\2&#40;\\3&#41;",
            $string
        );
    }

    /**
     * @param string $string String to check
     *
     * @return mixed
     */
    public static function removeJavaScriptHardRedirects($string)
    {
        $bad = array(
            'document.cookie' => '',
            'document.write'  => '',
            'window.location' => '',
            "javascript\s*:"  => '',
            "Redirect\s+302"  => '',
            '<!--'            => '&lt;!--',
            '-->'             => '--&gt;'
        );
        foreach ($bad as $key => $val) {
            $string = preg_replace("#" . $key . "#i", $val, $string);
        }

        return $string;
    }
}


1			<?php
2			/**
3			* Util
4			*
5			* @copyright Copyright (c) Gjero Krsteski (http://krsteski.de)
6			* @license http://opensource.org/licenses/MIT MIT License
7			*/
8			namespace Pimf\Util\Character;
9
10			/**
11			* String
12			*
13			* @package Util_String
14			* @author Gjero Krsteski <[email protected]>
15			*/
16			class Sanitize
17			{
18
19			/**
20			* @param string $string String to check
21			*
22			* @return mixed
23			*/
24			public static function removeNullCharacters($string)
25			{
26			return preg_replace(array('/\0+/', '/(\\\\0)+/'), '', $string);
27			}
28
29			/**
30			* @param string $string String to check
31			*
32			* @return mixed
33			*/
34			public static function validateStandardCharacterEntities($string)
35			{
36			return preg_replace('#(&\#*\w+)[\x00-\x20]+;#u', "\\1;", $string);
37			}
38
39			/**
40			* @param string $string String to check
41			*
42			* @return mixed
43			*/
44			public static function validateUTF16TwoByteEncoding($string)
45			{
46			return preg_replace('#(&\#x)([0-9A-F]+);#iu', "\\1\\2;", $string);
47			}
48
49			/**
50			* @param string $string String to check
51			*
52			* @return mixed
53			*/
54			public static function strangeThingsAreSubmitted($string)
55			{
56			return preg_replace(array("/%u0([a-z0-9]{3})/i", "/%([a-z0-9]{2})/i"), "&#x\\1;", $string);
57			}
58
59			/**
60			* @param string $string String to check
61			* @param string $charset Character set (default ISO-8859-1)
62			*
63			* @return mixed
64			*/
65			public static function convertCharacterEntitiesToASCII($string, $charset)
66			{
67			$matches = array();
68
69			if (preg_match_all("/<(.+?)>/si", $string, $matches)) {
70
71			$count = count($matches['0']);
72
73			for ($i = 0; $i < $count; $i++) {
74			$string = str_replace(
75			$matches['1'][$i],
76			html_entity_decode($matches['1'][$i], ENT_COMPAT, $charset),
77			$string
78			);
79			}
80			}
81
82			return $string;
83			}
84
85			/**
86			* @param string $string String to check
87			*
88			* @return mixed
89			*/
90			public static function convertAllTabsToSpaces($string)
91			{
92			return preg_replace("#\t+#", " ", $string);
93			}
94
95			/**
96			* @param string $string String to check
97			*
98			* @return mixed
99			*/
100			public static function makesPhpTagsSafe($string)
101			{
102			return str_replace(
103			array('<?php', '<?PHP', '<?', '?>'),
104			array('<?php', '<?PHP', '<?', '?>'),
105			$string
106			);
107			}
108
109			/**
110			* @param string $string String to check
111			*
112			* @return mixed
113			*/
114			public static function compactAnyExplodedWords($string)
115			{
116			$words = array('javascript', 'vbscript', 'script', 'applet', 'alert', 'document', 'write', 'cookie', 'window');
117			foreach ($words as $word) {
118			$temp = '';
119			$len = strlen($word);
120			for ($i = 0; $i < $len; $i++) {
121			$temp .= substr($word, $i, 1) . "\s*";
122			}
123			$temp = substr($temp, 0, -3);
124			$string = preg_replace('#' . $temp . '#s', $word, $string);
125			$string = preg_replace('#' . ucfirst($temp) . '#s', ucfirst($word), $string);
126			}
127
128			return $string;
129			}
130
131			/**
132			* @param string $string String to check
133			*
134			* @return mixed
135			*/
136			public static function removeDisallowedJavaScriptInLinksOrImgTags($string)
137			{
138			$string = preg_replace(
139			"#<a.+?href=.?(alert\(\|alert&\#40;\|javascript\:\|window\.\|document\.\|\.cookie\|<script\|<xss).?\>.*?</a>#si",
140			"",
141			$string
142			);
143			$string = preg_replace(
144			"#<img.+?src=.?(alert\(\|alert&\#40;\|javascript\:\|window\.\|document\.\|\.cookie\|<script\|<xss).?\>#si",
145			"",
146			$string
147			);
148
149			return preg_replace("#<(script\|xss).*?\>#si", "", $string);
150			}
151
152			/**
153			* @param string $string String to check
154			*
155			* @return mixed
156			*/
157			public static function removeJavaScriptEventHandlers($string)
158			{
159			return preg_replace(
160			'#(<[^>]+.*?)(onblur\|onchange\|onclick\|onfocus\|onload\|onmouseover\|onmouseup\|'
161			. 'onmousedown\|onselect\|onsubmit\|onunload\|onkeypress\|onkeydown\|onkeyup\|onresize)[^>]*>#iU',
162			"\\1>",
163			$string
164			);
165			}
166
167			/**
168			* @param string $string String to check
169			*
170			* @return mixed
171			*/
172			public static function healNaughtyHTMLElements($string)
173			{
174			return preg_replace(
175			'#<(/\s)(alert\|applet\|basefont\|base\|behavior\|bgsound\|'
176			. 'blink\|body\|embed\|expression\|form\|frameset\|frame\|head\|html\|ilayer\|iframe\|input'
177			. '\|layer\|link\|meta\|object\|plaintext\|style\|script\|textarea\|title\|xml\|xss)([^>]*)>#is',
178			"<\\1\\2\\3>",
179			$string
180			);
181			}
182
183			/**
184			* @param string $string String to check
185			*
186			* @return mixed
187			*/
188			public static function healNaughtyScriptingElements($string)
189			{
190			return preg_replace(
191			'#(alert\|cmd\|passthru\|eval\|exec\|system\|fopen\|fsockopen\|'
192			. 'file\|file_get_contents\|readfile\|unlink)(\s)\((.?)\)#si',
193			"\\1\\2(\\3)",
194			$string
195			);
196			}
197
198			/**
199			* @param string $string String to check
200			*
201			* @return mixed
202			*/
203			public static function removeJavaScriptHardRedirects($string)
204			{
205			$bad = array(
206			'document.cookie' => '',
207			'document.write' => '',
208			'window.location' => '',
209			"javascript\s*:" => '',
210			"Redirect\s+302" => '',
211			'<!--' => '<!--',
212			'-->' => '-->'
213			);
214			foreach ($bad as $key => $val) {
215			$string = preg_replace("#" . $key . "#i", $val, $string);
216			}
217
218			return $string;
219			}
220			}
221

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Sanitize::strangeThingsAreSubmitted() A last analyzed 2019-05-14 14:03 UTC

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Sanitize::strangeThingsAreSubmitted() A
last analyzed 2019-05-14 14:03 UTC