Strings::encrypt() - Code Metrics - Inspection of "..." - w3l/holt45 - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — dev ( 8e874c...1704c6 )

by w3l

created 2016-02-06 20:41 UTC

Strings::encrypt() B

↳ Parent: Strings

Complexity

Conditions	2
Paths	2

Size

Total Lines	24
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Importance

Changes	4
Bugs	0	Features	0

Metric	Value
c	4
b	0
f	0
dl	0
loc	24
rs	8.9713
cc	2
eloc	15
nc	2
nop	2

<?php
/**
 * Strings.php
 */
namespace w3l\Holt45;

/**
 * Handle strings(convert, encode, replace, etc).
 */
trait Strings
{
    /**
     * Encrypt string
     *
     * NOTICE: the code in general, this method in particular, comes with absolutely no warranty. If security is
     * important for you, then use a purpose built package. https://github.com/defuse/php-encryption seems like
     * a good candidate.
     * @deprecated Do not trust a two-line encryption-method.
     *
     * @throws Exception if extension mcrypt is not loaded.
     *
     * @param string $string String to encrypt
     * @param string $key Key to encrypt/decrypt.
     * @return string Encrypted string
     */
    public static function encrypt($string, $key)
    {
        if (!extension_loaded('mcrypt')) {
            throw new Exception('mcrypt not loaded');
        }

        $initializationVector = mcrypt_create_iv(
            mcrypt_get_iv_size(
                                MCRYPT_RIJNDAEL_256,
                                MCRYPT_MODE_ECB
                                ),
            MCRYPT_DEV_URANDOM
            );
        
        $encryptedString = $initializationVector.mcrypt_encrypt(
             MCRYPT_RIJNDAEL_256,
             hash("sha256", $key, true),
             $string,
             MCRYPT_MODE_CBC,
             $initializationVector
             );
     
        return base64_encode($encryptedString);
    }
    
    /**
     * Decrypt string
     *
     * NOTICE: the code in general, this method in particular, comes with absolutely no warranty. If security is
     * important for you, then use a purpose built package. https://github.com/defuse/php-encryption seems like
     * a good candidate.
     * @deprecated Do not trust a two-line decryption-method.
     *
     * @param string $string String to decrypt
     * @param string $key Key to encrypt/decrypt.
     * @return string Decrypted string
     */
    public static function decrypt($string, $key)
    {
        $encryptedString = base64_decode($string);
       
        $initializationVector = substr(
                                $encryptedString,
                                0,
                                mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256,
                                                   MCRYPT_MODE_ECB)
                                );
        
        $decryptedString = mcrypt_decrypt(
            MCRYPT_RIJNDAEL_256,
            hash("sha256", $key, true),
            substr(
                $encryptedString,
                mcrypt_get_iv_size(
                    MCRYPT_RIJNDAEL_256,
                    MCRYPT_MODE_ECB
                    )
                ),
            MCRYPT_MODE_CBC,
            $initializationVector
            );
        
        return $decryptedString;
    }

    /**
     * Obfuscate string (url-safe and somewhat hard to guess).
     *
     * @param string $input The text that should be obfuscated
     * @return string Obfuscated string
     */
    public static function obfuscateString($input)
    {
        return bin2hex(base64_encode(strrev($input)));
    }

    /**
     * Deobfuscate string
     *
     * @param string $input Obfuscated string
     * @return string Deobfuscated string
     */
    public static function deobfuscateString($input)
    {
        return strrev(base64_decode(hex2bin($input)));
    }

    /**
     * Convert <textarea> to [textarea].
     *
     * @param string $html
     * @return string
     */
    public static function textareaEncode($html)
    {
        return preg_replace("/<textarea(.*?)>(.*?)<\/textarea>/is", "[textarea$1]$2[/textarea]", $html);
    }

    /**
     * Convert [textarea] to <textarea>.
     *
     * @param string $html
     * @return string
     */
    public static function textareaDecode($html)
    {
        return preg_replace("/\[textarea(.*?)\](.*?)\[\/textarea\]/is", "<textarea$1>$2</textarea>", $html);
    }

    /**
     * To replace "Hallo [@var] world" with $value.
     *
     * Example:
     * ```php
     * replace_string($string, array("val1" => "foo", "val2" => "bar"))
     * ```
     *
     * @param string $langString String containing placeholder.
     * @param array $dynamicContent key->value array.
     * @return string String with placeholder replaced.
     */
    public static function replaceString($langString, $dynamicContent = array())
    {
        foreach ($dynamicContent as $k => $v) {
            $langString = str_replace("[@".$k."]", $v, $langString);
        }
        return $langString;
    }

    /**
     * Creates rainbow-colored text.
     *
     * @uses Holt45::colorBlend()
     * @uses Holt45::rgbhex()
     *
     * @param string $text Text wanted coloured.
     * @return string String with span-tags with color.
     */
    public static function rainbowText($text)
    {
        $colorsBase = array(
        array(255, 0, 0),
        array(255, 102, 0),
        array(255, 238, 0),
        array(0, 255, 0),
        array(0, 153, 255),
        array(68, 0, 255),
        array(153, 0, 255)
        );

        $colorsBuild = array();

        $strlenText = strlen($text);

        if ($strlenText > 7) {
            while (count($colorsBuild) < $strlenText) {
                for ($i = 0, $size = count($colorsBase); $i < $size; $i++) {

                    $colorsBuild[] = $colorsBase[$i];

                    if (count($colorsBuild) >= $strlenText) {
                        continue 2;
                    }

                    if ($i < count($colorsBase)-1) {

                        $colorsBuild[] = self::colorBlend($colorsBase[$i], $colorsBase[$i+1]);

                        if (count($colorsBuild) >= $strlenText) {
                            continue 2;
                        }
                    }
                }
                $colorsBase = $colorsBuild;
                $colorsBuild = array();
            }
        } elseif ($strlenText <= 7) {
            $colorsBuild = $colorsBase;
        }

        $arrayText = str_split($text);
        $returnText = "";
        for ($i = 0, $size = count($arrayText); $i < $size; $i++) {
            $returnText .= '<span style="color: #'.self::rgbhex($colorsBuild[$i]).';">'.$arrayText[$i].'</span>';
        }
        return $returnText;
    }
    
    /**
     * Get the symbol from a list of keyboard-keys...
     *
     * @used-by Holt45::kbdShortcut()
     *
     * @param string $inputKey Text
     * @param string $inputOperatingSystem default|auto|win|mac|linux
     * @return null|string HTML Entity (decimal)
     */
    public static function kbdSymbol($inputKey, $inputOperatingSystem = "default")
    {
        $inputKey = mb_strtolower($inputKey);
        
        if ($inputOperatingSystem == "auto") {
            
            $inputOperatingSystem = "default";
            
            $getClientOS = self::getClientOperatingSystem();
            
            if ($getClientOS == "linux" ||
                $getClientOS == "mac" ||
                $getClientOS == "windows") {
                   $inputOperatingSystem = $getClientOS;
            }
        }
        
        $arrayConvert = array(
        "return" => "enter",
        "control" => "ctrl",
        "escape" => "esc",
        "caps lock" => "caps-lock",
        "page up" => "page-up",
        "page down" => "page-down",
        "arrow left" => "arrow-left",
        "left" => "arrow-left",
        "arrow up" => "arrow-up",
        "up" => "arrow-up",
        "arrow right" => "arrow-right",
        "right" => "arrow-right",
        "arrow down" => "arrow-down",
        "down" => "arrow-down"
        );
        
        /* Convert input */
        if (array_key_exists($inputKey, $arrayConvert)) {
            $inputKey = $arrayConvert[$inputKey];
        }

        $arrayKeySymbols = array(
        "shift" => array("default" => "&#8679;"),
        "opt" => array("default" => "&#8997;"),
        "enter" => array("default" => "&#9166;", "mac" => "&#8996;"),
        "alt" => array("default" => "&#9095;", "mac" => "&#8997;"),
        "delete" => array("default" => "&#9003;"),
        "ctrl" => array("default" => "&#10034;", "windows" => "&#10034;", "linux" => "&#9096;", "mac" => "&#00094;"),
        "esc" => array("default" => "&#9099;"),
        "command" => array("default" => "&#8984;"),
        "tab" => array("default" => "&#8633;", "mac" => "&#8677;"),
        "caps-lock" => array("default" => "&#65;", "mac" => "&#8682;"),
        "page-up" => array("default" => "&#9650;", "mac" => "&#8670;"),
        "page-down" => array("default" => "&#9660;", "mac" => "&#8671;"),
        "arrow-left" => array("default" => "&#8592;"),
        "arrow-up" => array("default" => "&#8593;"),
        "arrow-right" => array("default" => "&#8594;"),
        "arrow-down" => array("default" => "&#8595;"),
        // Sun
        "compose" => array("default" => "&#9092;"),
        "meta" => array("default" => "&#9670")
        );
        
        if (array_key_exists($inputKey, $arrayKeySymbols)) {
            
            return ((array_key_exists($inputOperatingSystem, $arrayKeySymbols[$inputKey])) ?
                                      $arrayKeySymbols[$inputKey][$inputOperatingSystem] :
                                      $arrayKeySymbols[$inputKey]["default"]);
        }
        
        return null;
    }

    /**
     * Show fancy buttons for keyboard-shortcuts.
     *
     * @uses Holt45::kbdSymbol()
     *
     * @param array $inputArrayKeys
     * @param string $inputOperatingSystem
     * @param string $inputKbdClass
     * @param string $inputKbdSymbolClass
     * @param string $inputJoinGlue Glue
     * @return string String of html
     */
    public static function kbdShortcut(
        $inputArrayKeys,
        $inputOperatingSystem = "default",
        $inputKbdClass = "holt45-kbd",
        $inputKbdSymbolClass = "holt45-kbd__symbol",
        $inputJoinGlue = " + "
    ) {
        $returnArray = array();

        foreach ($inputArrayKeys as $key) {
            
            $kbdSymbol = self::kbdSymbol($key, $inputOperatingSystem);
            
            $kbdSymbolHtml = "";
            
            if ($kbdSymbol !== null) {
                $kbdSymbolHtml = '<span class="'.$inputKbdSymbolClass.'">'.$kbdSymbol.'</span>';
            }
            
            $returnArray[] = '<kbd class="'.$inputKbdClass.'">'.$kbdSymbolHtml.$key.'</kbd>';
            
        }

        return implode($inputJoinGlue, $returnArray);
    }

    /**
     * Attempting to keep CSS on one line with scoped style.
     *
     * NOTICE: This is a rough estimate, font type, design, etc affects the results.
     *
     * @param string $text
     * @param string $cssSelector
     * @param int $fontSizePx
     * @param int $minPageWidthPx
     * @return null|string Scoped style
     */
    public static function cssOneLineText($text, $cssSelector = "h1", $fontSizePx = 36, $minPageWidthPx = 320)
    {
        $countText = strlen($text)+1;

        $fontWidth = ($fontSizePx / 2);

        if ($minPageWidthPx < $countText) {
            $minPageWidthPx = $countText;
        }
        if (($countText * $fontWidth) > $minPageWidthPx) {

            $cssNewFontSizePx = round(($minPageWidthPx / $countText) * 2, 2);
            $cssNewFontSizeVw = round((100/$countText) * 2, 2);

            $cssBreakpointPx = round($countText * $fontWidth);

            return '<style scoped>@media (max-width: '.$cssBreakpointPx.'px) { '.$cssSelector.' { font-size: '.$cssNewFontSizePx.'px; font-size: '.$cssNewFontSizeVw.'vw; } }</style>';

        }
        return null;
    }
}


1			<?php
2			/**
3			* Strings.php
4			*/
5			namespace w3l\Holt45;
6
7			/**
8			* Handle strings(convert, encode, replace, etc).
9			*/
10			trait Strings
11			{
12			/**
13			* Encrypt string
14			*
15			* NOTICE: the code in general, this method in particular, comes with absolutely no warranty. If security is
16			* important for you, then use a purpose built package. https://github.com/defuse/php-encryption seems like
17			* a good candidate.
18			* @deprecated Do not trust a two-line encryption-method.
19			*
20			* @throws Exception if extension mcrypt is not loaded.
21			*
22			* @param string $string String to encrypt
23			* @param string $key Key to encrypt/decrypt.
24			* @return string Encrypted string
25			*/
26			public static function encrypt($string, $key)
27			{
28			if (!extension_loaded('mcrypt')) {
29			throw new Exception('mcrypt not loaded');
30			}
31
32			$initializationVector = mcrypt_create_iv(
33			mcrypt_get_iv_size(
34			MCRYPT_RIJNDAEL_256,
35			MCRYPT_MODE_ECB
36			),
37			MCRYPT_DEV_URANDOM
38			);
39
40			$encryptedString = $initializationVector.mcrypt_encrypt(
41			MCRYPT_RIJNDAEL_256,
42			hash("sha256", $key, true),
43			$string,
44			MCRYPT_MODE_CBC,
45			$initializationVector
46			);
47
48			return base64_encode($encryptedString);
49			}
50
51			/**
52			* Decrypt string
53			*
54			* NOTICE: the code in general, this method in particular, comes with absolutely no warranty. If security is
55			* important for you, then use a purpose built package. https://github.com/defuse/php-encryption seems like
56			* a good candidate.
57			* @deprecated Do not trust a two-line decryption-method.
58			*
59			* @param string $string String to decrypt
60			* @param string $key Key to encrypt/decrypt.
61			* @return string Decrypted string
62			*/
63			public static function decrypt($string, $key)
64			{
65			$encryptedString = base64_decode($string);
66
67			$initializationVector = substr(
68			$encryptedString,
69			0,
70			mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256,
71			MCRYPT_MODE_ECB)
72			);
73
74			$decryptedString = mcrypt_decrypt(
75			MCRYPT_RIJNDAEL_256,
76			hash("sha256", $key, true),
77			substr(
78			$encryptedString,
79			mcrypt_get_iv_size(
80			MCRYPT_RIJNDAEL_256,
81			MCRYPT_MODE_ECB
82			)
83			),
84			MCRYPT_MODE_CBC,
85			$initializationVector
86			);
87
88			return $decryptedString;
89			}
90
91			/**
92			* Obfuscate string (url-safe and somewhat hard to guess).
93			*
94			* @param string $input The text that should be obfuscated
95			* @return string Obfuscated string
96			*/
97			public static function obfuscateString($input)
98			{
99			return bin2hex(base64_encode(strrev($input)));
100			}
101
102			/**
103			* Deobfuscate string
104			*
105			* @param string $input Obfuscated string
106			* @return string Deobfuscated string
107			*/
108			public static function deobfuscateString($input)
109			{
110			return strrev(base64_decode(hex2bin($input)));
111			}
112
113			/**
114			* Convert <textarea> to [textarea].
115			*
116			* @param string $html
117			* @return string
118			*/
119			public static function textareaEncode($html)
120			{
121			return preg_replace("/<textarea(.?)>(.?)<\/textarea>/is", "[textarea$1]$2[/textarea]", $html);
122			}
123
124			/**
125			* Convert [textarea] to <textarea>.
126			*
127			* @param string $html
128			* @return string
129			*/
130			public static function textareaDecode($html)
131			{
132			return preg_replace("/\[textarea(.?)\](.?)\[\/textarea\]/is", "<textarea$1>$2</textarea>", $html);
133			}
134
135			/**
136			* To replace "Hallo [@var] world" with $value.
137			*
138			* Example:
139			* ```php
140			* replace_string($string, array("val1" => "foo", "val2" => "bar"))
141			* ```
142			*
143			* @param string $langString String containing placeholder.
144			* @param array $dynamicContent key->value array.
145			* @return string String with placeholder replaced.
146			*/
147			public static function replaceString($langString, $dynamicContent = array())
148			{
149			foreach ($dynamicContent as $k => $v) {
150			$langString = str_replace("[@".$k."]", $v, $langString);
151			}
152			return $langString;
153			}
154
155			/**
156			* Creates rainbow-colored text.
157			*
158			* @uses Holt45::colorBlend()
159			* @uses Holt45::rgbhex()
160			*
161			* @param string $text Text wanted coloured.
162			* @return string String with span-tags with color.
163			*/
164			public static function rainbowText($text)
165			{
166			$colorsBase = array(
167			array(255, 0, 0),
168			array(255, 102, 0),
169			array(255, 238, 0),
170			array(0, 255, 0),
171			array(0, 153, 255),
172			array(68, 0, 255),
173			array(153, 0, 255)
174			);
175
176			$colorsBuild = array();
177
178			$strlenText = strlen($text);
179
180			if ($strlenText > 7) {
181			while (count($colorsBuild) < $strlenText) {
182			for ($i = 0, $size = count($colorsBase); $i < $size; $i++) {
183
184			$colorsBuild[] = $colorsBase[$i];
185
186			if (count($colorsBuild) >= $strlenText) {
187			continue 2;
188			}
189
190			if ($i < count($colorsBase)-1) {
191
192			$colorsBuild[] = self::colorBlend($colorsBase[$i], $colorsBase[$i+1]);
193
194			if (count($colorsBuild) >= $strlenText) {
195			continue 2;
196			}
197			}
198			}
199			$colorsBase = $colorsBuild;
200			$colorsBuild = array();
201			}
202			} elseif ($strlenText <= 7) {
203			$colorsBuild = $colorsBase;
204			}
205
206			$arrayText = str_split($text);
207			$returnText = "";
208			for ($i = 0, $size = count($arrayText); $i < $size; $i++) {
209			$returnText .= '<span style="color: #'.self::rgbhex($colorsBuild[$i]).';">'.$arrayText[$i].'</span>';
210			}
211			return $returnText;
212			}
213
214			/**
215			* Get the symbol from a list of keyboard-keys...
216			*
217			* @used-by Holt45::kbdShortcut()
218			*
219			* @param string $inputKey Text
220			* @param string $inputOperatingSystem default\|auto\|win\|mac\|linux
221			* @return null\|string HTML Entity (decimal)
222			*/
223			public static function kbdSymbol($inputKey, $inputOperatingSystem = "default")
224			{
225			$inputKey = mb_strtolower($inputKey);
226
227			if ($inputOperatingSystem == "auto") {
228
229			$inputOperatingSystem = "default";
230
231			$getClientOS = self::getClientOperatingSystem();
232
233			if ($getClientOS == "linux" \|\|
234			$getClientOS == "mac" \|\|
235			$getClientOS == "windows") {
236			$inputOperatingSystem = $getClientOS;
237			}
238			}
239
240			$arrayConvert = array(
241			"return" => "enter",
242			"control" => "ctrl",
243			"escape" => "esc",
244			"caps lock" => "caps-lock",
245			"page up" => "page-up",
246			"page down" => "page-down",
247			"arrow left" => "arrow-left",
248			"left" => "arrow-left",
249			"arrow up" => "arrow-up",
250			"up" => "arrow-up",
251			"arrow right" => "arrow-right",
252			"right" => "arrow-right",
253			"arrow down" => "arrow-down",
254			"down" => "arrow-down"
255			);
256
257			/* Convert input */
258			if (array_key_exists($inputKey, $arrayConvert)) {
259			$inputKey = $arrayConvert[$inputKey];
260			}
261
262			$arrayKeySymbols = array(
263			"shift" => array("default" => "⇧"),
264			"opt" => array("default" => "⌥"),
265			"enter" => array("default" => "⏎", "mac" => "⌤"),
266			"alt" => array("default" => "⎇", "mac" => "⌥"),
267			"delete" => array("default" => "⌫"),
268			"ctrl" => array("default" => "✲", "windows" => "✲", "linux" => "⎈", "mac" => "^"),
269			"esc" => array("default" => "⎋"),
270			"command" => array("default" => "⌘"),
271			"tab" => array("default" => "↹", "mac" => "⇥"),
272			"caps-lock" => array("default" => "A", "mac" => "⇪"),
273			"page-up" => array("default" => "▲", "mac" => "⇞"),
274			"page-down" => array("default" => "▼", "mac" => "⇟"),
275			"arrow-left" => array("default" => "←"),
276			"arrow-up" => array("default" => "↑"),
277			"arrow-right" => array("default" => "→"),
278			"arrow-down" => array("default" => "↓"),
279			// Sun
280			"compose" => array("default" => "⎄"),
281			"meta" => array("default" => "&#9670")
282			);
283
284			if (array_key_exists($inputKey, $arrayKeySymbols)) {
285
286			return ((array_key_exists($inputOperatingSystem, $arrayKeySymbols[$inputKey])) ?
287			$arrayKeySymbols[$inputKey][$inputOperatingSystem] :
288			$arrayKeySymbols[$inputKey]["default"]);
289			}
290
291			return null;
292			}
293
294			/**
295			* Show fancy buttons for keyboard-shortcuts.
296			*
297			* @uses Holt45::kbdSymbol()
298			*
299			* @param array $inputArrayKeys
300			* @param string $inputOperatingSystem
301			* @param string $inputKbdClass
302			* @param string $inputKbdSymbolClass
303			* @param string $inputJoinGlue Glue
304			* @return string String of html
305			*/
306			public static function kbdShortcut(
307			$inputArrayKeys,
308			$inputOperatingSystem = "default",
309			$inputKbdClass = "holt45-kbd",
310			$inputKbdSymbolClass = "holt45-kbd__symbol",
311			$inputJoinGlue = " + "
312			) {
313			$returnArray = array();
314
315			foreach ($inputArrayKeys as $key) {
316
317			$kbdSymbol = self::kbdSymbol($key, $inputOperatingSystem);
318
319			$kbdSymbolHtml = "";
320
321			if ($kbdSymbol !== null) {
322			$kbdSymbolHtml = '<span class="'.$inputKbdSymbolClass.'">'.$kbdSymbol.'</span>';
323			}
324
325			$returnArray[] = '<kbd class="'.$inputKbdClass.'">'.$kbdSymbolHtml.$key.'</kbd>';
326
327			}
328
329			return implode($inputJoinGlue, $returnArray);
330			}
331
332			/**
333			* Attempting to keep CSS on one line with scoped style.
334			*
335			* NOTICE: This is a rough estimate, font type, design, etc affects the results.
336			*
337			* @param string $text
338			* @param string $cssSelector
339			* @param int $fontSizePx
340			* @param int $minPageWidthPx
341			* @return null\|string Scoped style
342			*/
343			public static function cssOneLineText($text, $cssSelector = "h1", $fontSizePx = 36, $minPageWidthPx = 320)
344			{
345			$countText = strlen($text)+1;
346
347			$fontWidth = ($fontSizePx / 2);
348
349			if ($minPageWidthPx < $countText) {
350			$minPageWidthPx = $countText;
351			}
352			if (($countText * $fontWidth) > $minPageWidthPx) {
353
354			$cssNewFontSizePx = round(($minPageWidthPx / $countText) * 2, 2);
355			$cssNewFontSizeVw = round((100/$countText) * 2, 2);
356
357			$cssBreakpointPx = round($countText * $fontWidth);
358
359			return '<style scoped>@media (max-width: '.$cssBreakpointPx.'px) { '.$cssSelector.' { font-size: '.$cssNewFontSizePx.'px; font-size: '.$cssNewFontSizeVw.'vw; } }</style>';
			0 ignored issues – show Coding Style introduced 2016-02-05 02:00 UTC by Report Bug Copy Issue Report This line exceeds maximum limit of 120 characters; contains 183 characters Overly long lines are hard to read on any screen. Most code styles therefor impose a maximum limit on the number of characters in a line. Loading history...
360			}
361			return null;
362			}
363			}
364

w3l / holt45

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