Helper::sampleEncrypt() - Code Metrics - Inspection of "Move random_uuid() to Helper::uuid()" - ElfSundae/laravel-support - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 488ec0...489dce )

by Elf

created 2017-08-11 20:31 UTC

Helper::sampleEncrypt() A

↳ Parent: Helper

Complexity

Conditions	2
Paths	2

Size

Total Lines	20
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	6

Importance

Changes

Metric	Value
cc	2
eloc	9
nc	2
nop	2
dl	0
loc	20
ccs	0
cts	13
cp	0
crap	6
rs	9.4285
c	0
b	0
f	0

<?php

namespace ElfSundae\Laravel\Support;

use Ramsey\Uuid\Uuid;
use Illuminate\Http\Request;
use Symfony\Component\HttpFoundation\File\MimeType\ExtensionGuesser;

class Helper
{
    /**
     * Generate a Gravatar URL.
     *
     * @see https://gravatar.com/site/implement/images/
     *
     * @param  string  $email
     * @param  int  $size
     * @param  string  $default
     * @param  string  $rating
     * @return string
     */
    public static function gravatar($email, $size = 120, $default = null, $rating = null)
    {
        if (is_null($default)) {
            $default = config('support.gravatar.default');
        }

        if (is_null($rating)) {
            $rating = config('support.gravatar.rating');
        }

        $query = http_build_query(array_filter(compact('size', 'default', 'rating')));
        if ($query) {
            $query = '?'.$query;
        }

        return app('url')->assetFrom(
            config('support.gravatar.host', 'https://www.gravatar.com/avatar'),
            md5(strtolower(trim($email))).$query
        );
    }

    /**
     * Generate a version 4 (random) UUID.
     *
     * @param  bool  $hex
     * @return string
     */
    public static function uuid($hex = false)
    {
        $uuid = Uuid::uuid4();

        return $hex ? $uuid->getHex() : $uuid->toString();
    }

    /**
     * Add JSON type to the "Accept" header for the current request.
     *
     * @see https://laravel-china.org/topics/3430/modify-request-headers-incomplete-raiders
     *
     * @param  callable  $determination
     * @param  callable  $callback
     * @return mixed
     */
    public static function addAcceptableJsonType($determination = null, $callback = null)
    {
        return app()->rebinding('request', function ($app, $request) use ($determination, $callback) {
            if (is_null($determination) || call_user_func($determination, $request)) {
                $accept = $request->headers->get('Accept');

                if (! str_contains($accept, ['/json', '+json'])) {
                    $accept = rtrim('application/json,'.$accept, ',');

                    $request->headers->set('Accept', $accept);
                    $request->server->set('HTTP_ACCEPT', $accept);
                    $_SERVER['HTTP_ACCEPT'] = $accept;

                    if ($callback) {
                        call_user_func($callback, $request);
                    }
                }
            }
        });
    }

    /**
     * Get file extension for MIME type.
     *
     * @param  string  $mimeType
     * @param  string  $prefix
     * @return string|null
     */
    public static function fileExtensionForMimeType($mimeType, $prefix = '')
    {
        $extension = ExtensionGuesser::getInstance()->guess($mimeType);

        if (! is_null($extension)) {
            if ('jpeg' == $extension) {
                $extension = 'jpg';
            }

            return $prefix.$extension;
        }
    }

    /**
     * Convert an iOS platform to the device model name.
     *
     * @see https://www.theiphonewiki.com/wiki/Models
     * @see https://support.hockeyapp.net/kb/client-integration-ios-mac-os-x-tvos/ios-device-types
     *
     * @param  string  $platform
     * @return string
     */
    public static function iDeviceModel($platform)
    {
        static $iDeviceModels = null;

        if (is_null($iDeviceModels)) {
            $iDeviceModels = [
                'i386' => 'Simulator',
                'x86_64' => 'Simulator',

                'iPhone1,1' => 'iPhone',
                'iPhone1,2' => 'iPhone 3G',
                'iPhone2,1' => 'iPhone 3GS',
                'iPhone3,1' => 'iPhone 4',
                'iPhone3,2' => 'iPhone 4',
                'iPhone3,3' => 'iPhone 4',
                'iPhone4,1' => 'iPhone 4S',
                'iPhone5,1' => 'iPhone 5',
                'iPhone5,2' => 'iPhone 5',
                'iPhone5,3' => 'iPhone 5c',
                'iPhone5,4' => 'iPhone 5c',
                'iPhone6,1' => 'iPhone 5s',
                'iPhone6,2' => 'iPhone 5s',
                'iPhone7,1' => 'iPhone 6 Plus',
                'iPhone7,2' => 'iPhone 6',
                'iPhone8,1' => 'iPhone 6s',
                'iPhone8,2' => 'iPhone 6s Plus',
                'iPhone8,4' => 'iPhone SE',
                'iPhone9,1' => 'iPhone 7',
                'iPhone9,2' => 'iPhone 7 Plus',
                'iPhone9,3' => 'iPhone 7',
                'iPhone9,4' => 'iPhone 7 Plus',

                'iPod1,1' => 'iPod touch',
                'iPod2,1' => 'iPod touch 2G',
                'iPod3,1' => 'iPod touch 3G',
                'iPod4,1' => 'iPod touch 4G',
                'iPod5,1' => 'iPod touch 5G',
                'iPod7,1' => 'iPod touch 6G',

                'iPad1,1' => 'iPad',
                'iPad2,1' => 'iPad 2',
                'iPad2,2' => 'iPad 2',
                'iPad2,3' => 'iPad 2',
                'iPad2,4' => 'iPad 2',
                'iPad2,5' => 'iPad mini',
                'iPad2,6' => 'iPad mini',
                'iPad2,7' => 'iPad mini',
                'iPad3,1' => 'iPad 3',
                'iPad3,2' => 'iPad 3',
                'iPad3,3' => 'iPad 3',
                'iPad3,4' => 'iPad 4',
                'iPad3,5' => 'iPad 4',
                'iPad3,6' => 'iPad 4',
                'iPad4,1' => 'iPad Air',
                'iPad4,2' => 'iPad Air',
                'iPad4,3' => 'iPad Air',
                'iPad4,4' => 'iPad mini 2',
                'iPad4,5' => 'iPad mini 2',
                'iPad4,6' => 'iPad mini 2',
                'iPad4,7' => 'iPad mini 3',
                'iPad4,8' => 'iPad mini 3',
                'iPad4,9' => 'iPad mini 3',
                'iPad5,1' => 'iPad mini 4',
                'iPad5,2' => 'iPad mini 4',
                'iPad5,3' => 'iPad Air 2',
                'iPad5,4' => 'iPad Air 2',
                'iPad6,3' => 'iPad Pro',
                'iPad6,4' => 'iPad Pro',
                'iPad6,7' => 'iPad Pro',
                'iPad6,8' => 'iPad Pro',

                'AppleTV2,1' => 'Apple TV 2G',
                'AppleTV3,1' => 'Apple TV 3G',
                'AppleTV3,2' => 'Apple TV 3G',
                'AppleTV5,3' => 'Apple TV 4G',

                'Watch1,1' => 'Apple Watch',
                'Watch1,2' => 'Apple Watch',
                'Watch2,6' => 'Apple Watch Series 1',
                'Watch2,7' => 'Apple Watch Series 1',
                'Watch2,3' => 'Apple Watch Series 2',
                'Watch2,4' => 'Apple Watch Series 2',
            ];
        }

        return isset($iDeviceModels[$platform]) ? $iDeviceModels[$platform] : $platform;
    }

    /**
     * Get the mail homepage.
     *
     * @param  string  $address
     * @return string|null
     */
    public static function mailHomepage($address)
    {
        if (preg_match('#@([a-z0-9.-]+)#i', $address, $match)) {
            $list = [
                'qq.com' => 'https://mail.qq.com',
                'vip.qq.com' => 'https://mail.qq.com',
                '126.com' => 'http://www.126.com',
                'gmail.com' => 'https://mail.google.com',
                '139.com' => 'http://mail.10086.cn',
                'wo.cn' => 'http://mail.wo.com.cn',
                'sina.com' => 'http://mail.sina.com.cn',
                'sina.cn' => 'http://mail.sina.com.cn',
                'vip.sina.com' => 'http://mail.sina.com.cn',
            ];

            $domain = strtolower($match[1]);

            return isset($list[$domain]) ? $list[$domain] : 'http://mail.'.$domain;
        }
    }

    /**
     * Encrypt ASCII string via XOR.
     *
     * @param  string  $text
     * @param  string|null  $key
     * @return string
     */
    public static function sampleEncrypt($text, $key = null)
    {
        $text = (string) $text;
        if (is_null($key)) {
            $key = app('encrypter')->getKey();
        }

        // 生成随机字符串
        $random = str_random(strlen($text));

        // 按字符拼接：随机字符串 + 随机字符串异或原文
        $tmp = static::sampleEncryption($text, $random, function ($a, $b) {
            return $b.($a ^ $b);
        });

        // 异或 $tmp 和 $key
        $result = static::sampleEncryption($tmp, $key);

        return urlsafe_base64_encode($result);
    }

    /**
     * Decrypt string via XOR.
     *
     * @param  string  $text
     * @param  string|null  $key
     * @return string
     */
    public static function sampleDecrypt($text, $key = null)
    {
        if (is_null($key)) {
            $key = app('encrypter')->getKey();
        }

        $tmp = static::sampleEncryption(urlsafe_base64_decode($text), $key);
        $tmpLength = strlen($tmp);
        $result = '';
        for ($i = 0; $i < $tmpLength, ($i + 1) < $tmpLength; $i += 2) {
            $result .= $tmp[$i] ^ $tmp[$i + 1];
        }

        return $result;
    }

    /**
     * Do a sample XOR encryption.
     *
     * @param  string  $text
     * @param  string  $key
     * @param  \Closure|null  $callback `($a, $b, $index)`
     * @return string
     */
    protected static function sampleEncryption($text, $key, $callback = null)
    {
        // 对 $text 和 $key 的每个字符进行运算。
        // $callback 为 null 时默认进行异或运算。
        // $callback 参数： 第 i 位 $text, 第 i 位 $key, 下标 i
        // $callback 返回 false 时，结束字符循环.

        $text = (string) $text;
        $key = (string) $key;
        $keyLength = strlen($key);
        if (is_null($callback)) {
            $callback = function ($a, $b) {
                return $a ^ $b;
            };
        }

        $result = '';
        $textLength = strlen($text);
        for ($i = 0; $i < $textLength; $i++) {
            $tmp = $callback($text[$i], $key[$i % $keyLength], $i);
            if (false === $tmp) {
                break;
            }
            $result .= $tmp;
        }

        return $result;
    }

    /**
     * Convert an integer to a string.
     * It is useful to shorten a database ID to URL keyword, e.g. 54329 to 'xkE'.
     *
     * @param  int $number
     * @param  string|null  $characters
     * @return string
     */
    public static function int2string($number, string $characters = null)
    {
        $number = (int) $number;
        if ($number < 0) {
            return '';
        }

        if (is_null($characters)) {
            $characters = config('support.int2string');
        }

        $charactersLength = strlen($characters);
        $string = '';

        while ($number >= $charactersLength) {
            $mod = (int) bcmod($number, $charactersLength);
            $number = (int) bcdiv($number, $charactersLength);
            $string = $characters[$mod].$string;
        }

        return $characters[$number].$string;
    }

    /**
     * Convert an `int2string` generated string back to an integer.
     *
     * @param  string  $string
     * @param  string|null  $characters
     * @return int
     */
    public static function string2int($string, string $characters = null)
    {
        $string = strrev($string);
        $stringLength = strlen($string);

        if (is_null($characters)) {
            $characters = config('support.int2string');
        }
        $charactersLength = strlen($characters);

        $number = 0;
        for ($i = 0; $i < $stringLength; $i++) {
            $index = strpos($characters, $string[$i]);
            $number = (int) bcadd($number, bcmul($index, bcpow($charactersLength, $i)));
        }

        return $number;
    }
}


1			<?php
2
3			namespace ElfSundae\Laravel\Support;
4
5			use Ramsey\Uuid\Uuid;
6			use Illuminate\Http\Request;
7			use Symfony\Component\HttpFoundation\File\MimeType\ExtensionGuesser;
8
9			class Helper
10			{
11			/**
12			* Generate a Gravatar URL.
13			*
14			* @see https://gravatar.com/site/implement/images/
15			*
16			* @param string $email
17			* @param int $size
18			* @param string $default
19			* @param string $rating
20			* @return string
21			*/
22			public static function gravatar($email, $size = 120, $default = null, $rating = null)
23			{
24			if (is_null($default)) {
25			$default = config('support.gravatar.default');
26			}
27
28			if (is_null($rating)) {
29			$rating = config('support.gravatar.rating');
30			}
31
32			$query = http_build_query(array_filter(compact('size', 'default', 'rating')));
33			if ($query) {
34			$query = '?'.$query;
35			}
36
37			return app('url')->assetFrom(
38			config('support.gravatar.host', 'https://www.gravatar.com/avatar'),
39			md5(strtolower(trim($email))).$query
40			);
41			}
42
43			/**
44			* Generate a version 4 (random) UUID.
45			*
46			* @param bool $hex
47			* @return string
48			*/
49			public static function uuid($hex = false)
50			{
51			$uuid = Uuid::uuid4();
52
53			return $hex ? $uuid->getHex() : $uuid->toString();
54			}
55
56			/**
57			* Add JSON type to the "Accept" header for the current request.
58			*
59			* @see https://laravel-china.org/topics/3430/modify-request-headers-incomplete-raiders
60			*
61			* @param callable $determination
62			* @param callable $callback
63			* @return mixed
64			*/
65			public static function addAcceptableJsonType($determination = null, $callback = null)
66			{
67			return app()->rebinding('request', function ($app, $request) use ($determination, $callback) {
68			if (is_null($determination) \|\| call_user_func($determination, $request)) {
69			$accept = $request->headers->get('Accept');
70
71			if (! str_contains($accept, ['/json', '+json'])) {
72			$accept = rtrim('application/json,'.$accept, ',');
73
74			$request->headers->set('Accept', $accept);
75			$request->server->set('HTTP_ACCEPT', $accept);
76			$_SERVER['HTTP_ACCEPT'] = $accept;
77
78			if ($callback) {
79			call_user_func($callback, $request);
80			}
81			}
82			}
83			});
84			}
85
86			/**
87			* Get file extension for MIME type.
88			*
89			* @param string $mimeType
90			* @param string $prefix
91			* @return string\|null
92			*/
93			public static function fileExtensionForMimeType($mimeType, $prefix = '')
94			{
95			$extension = ExtensionGuesser::getInstance()->guess($mimeType);
96
97			if (! is_null($extension)) {
98			if ('jpeg' == $extension) {
99			$extension = 'jpg';
100			}
101
102			return $prefix.$extension;
103			}
104			}
105
106			/**
107			* Convert an iOS platform to the device model name.
108			*
109			* @see https://www.theiphonewiki.com/wiki/Models
110			* @see https://support.hockeyapp.net/kb/client-integration-ios-mac-os-x-tvos/ios-device-types
111			*
112			* @param string $platform
113			* @return string
114			*/
115			public static function iDeviceModel($platform)
116			{
117			static $iDeviceModels = null;
118
119			if (is_null($iDeviceModels)) {
120			$iDeviceModels = [
121			'i386' => 'Simulator',
122			'x86_64' => 'Simulator',
123
124			'iPhone1,1' => 'iPhone',
125			'iPhone1,2' => 'iPhone 3G',
126			'iPhone2,1' => 'iPhone 3GS',
127			'iPhone3,1' => 'iPhone 4',
128			'iPhone3,2' => 'iPhone 4',
129			'iPhone3,3' => 'iPhone 4',
130			'iPhone4,1' => 'iPhone 4S',
131			'iPhone5,1' => 'iPhone 5',
132			'iPhone5,2' => 'iPhone 5',
133			'iPhone5,3' => 'iPhone 5c',
134			'iPhone5,4' => 'iPhone 5c',
135			'iPhone6,1' => 'iPhone 5s',
136			'iPhone6,2' => 'iPhone 5s',
137			'iPhone7,1' => 'iPhone 6 Plus',
138			'iPhone7,2' => 'iPhone 6',
139			'iPhone8,1' => 'iPhone 6s',
140			'iPhone8,2' => 'iPhone 6s Plus',
141			'iPhone8,4' => 'iPhone SE',
142			'iPhone9,1' => 'iPhone 7',
143			'iPhone9,2' => 'iPhone 7 Plus',
144			'iPhone9,3' => 'iPhone 7',
145			'iPhone9,4' => 'iPhone 7 Plus',
146
147			'iPod1,1' => 'iPod touch',
148			'iPod2,1' => 'iPod touch 2G',
149			'iPod3,1' => 'iPod touch 3G',
150			'iPod4,1' => 'iPod touch 4G',
151			'iPod5,1' => 'iPod touch 5G',
152			'iPod7,1' => 'iPod touch 6G',
153
154			'iPad1,1' => 'iPad',
155			'iPad2,1' => 'iPad 2',
156			'iPad2,2' => 'iPad 2',
157			'iPad2,3' => 'iPad 2',
158			'iPad2,4' => 'iPad 2',
159			'iPad2,5' => 'iPad mini',
160			'iPad2,6' => 'iPad mini',
161			'iPad2,7' => 'iPad mini',
162			'iPad3,1' => 'iPad 3',
163			'iPad3,2' => 'iPad 3',
164			'iPad3,3' => 'iPad 3',
165			'iPad3,4' => 'iPad 4',
166			'iPad3,5' => 'iPad 4',
167			'iPad3,6' => 'iPad 4',
168			'iPad4,1' => 'iPad Air',
169			'iPad4,2' => 'iPad Air',
170			'iPad4,3' => 'iPad Air',
171			'iPad4,4' => 'iPad mini 2',
172			'iPad4,5' => 'iPad mini 2',
173			'iPad4,6' => 'iPad mini 2',
174			'iPad4,7' => 'iPad mini 3',
175			'iPad4,8' => 'iPad mini 3',
176			'iPad4,9' => 'iPad mini 3',
177			'iPad5,1' => 'iPad mini 4',
178			'iPad5,2' => 'iPad mini 4',
179			'iPad5,3' => 'iPad Air 2',
180			'iPad5,4' => 'iPad Air 2',
181			'iPad6,3' => 'iPad Pro',
182			'iPad6,4' => 'iPad Pro',
183			'iPad6,7' => 'iPad Pro',
184			'iPad6,8' => 'iPad Pro',
185
186			'AppleTV2,1' => 'Apple TV 2G',
187			'AppleTV3,1' => 'Apple TV 3G',
188			'AppleTV3,2' => 'Apple TV 3G',
189			'AppleTV5,3' => 'Apple TV 4G',
190
191			'Watch1,1' => 'Apple Watch',
192			'Watch1,2' => 'Apple Watch',
193			'Watch2,6' => 'Apple Watch Series 1',
194			'Watch2,7' => 'Apple Watch Series 1',
195			'Watch2,3' => 'Apple Watch Series 2',
196			'Watch2,4' => 'Apple Watch Series 2',
197			];
198			}
199
200			return isset($iDeviceModels[$platform]) ? $iDeviceModels[$platform] : $platform;
201			}
202
203			/**
204			* Get the mail homepage.
205			*
206			* @param string $address
207			* @return string\|null
208			*/
209			public static function mailHomepage($address)
210			{
211			if (preg_match('#@([a-z0-9.-]+)#i', $address, $match)) {
212			$list = [
213			'qq.com' => 'https://mail.qq.com',
214			'vip.qq.com' => 'https://mail.qq.com',
215			'126.com' => 'http://www.126.com',
216			'gmail.com' => 'https://mail.google.com',
217			'139.com' => 'http://mail.10086.cn',
218			'wo.cn' => 'http://mail.wo.com.cn',
219			'sina.com' => 'http://mail.sina.com.cn',
220			'sina.cn' => 'http://mail.sina.com.cn',
221			'vip.sina.com' => 'http://mail.sina.com.cn',
222			];
223
224			$domain = strtolower($match[1]);
225
226			return isset($list[$domain]) ? $list[$domain] : 'http://mail.'.$domain;
227			}
228			}
229
230			/**
231			* Encrypt ASCII string via XOR.
232			*
233			* @param string $text
234			* @param string\|null $key
235			* @return string
236			*/
237			public static function sampleEncrypt($text, $key = null)
238			{
239			$text = (string) $text;
240			if (is_null($key)) {
241			$key = app('encrypter')->getKey();
242			}
243
244			// 生成随机字符串
245			$random = str_random(strlen($text));
246
247			// 按字符拼接：随机字符串 + 随机字符串异或原文
248			$tmp = static::sampleEncryption($text, $random, function ($a, $b) {
249			return $b.($a ^ $b);
250			});
251
252			// 异或 $tmp 和 $key
253			$result = static::sampleEncryption($tmp, $key);
254
255			return urlsafe_base64_encode($result);
256			}
257
258			/**
259			* Decrypt string via XOR.
260			*
261			* @param string $text
262			* @param string\|null $key
263			* @return string
264			*/
265			public static function sampleDecrypt($text, $key = null)
266			{
267			if (is_null($key)) {
268			$key = app('encrypter')->getKey();
269			}
270
271			$tmp = static::sampleEncryption(urlsafe_base64_decode($text), $key);
272			$tmpLength = strlen($tmp);
273			$result = '';
274			for ($i = 0; $i < $tmpLength, ($i + 1) < $tmpLength; $i += 2) {
275			$result .= $tmp[$i] ^ $tmp[$i + 1];
276			}
277
278			return $result;
279			}
280
281			/**
282			* Do a sample XOR encryption.
283			*
284			* @param string $text
285			* @param string $key
286			* @param \Closure\|null $callback `($a, $b, $index)`
287			* @return string
288			*/
289			protected static function sampleEncryption($text, $key, $callback = null)
290			{
291			// 对 $text 和 $key 的每个字符进行运算。
292			// $callback 为 null 时默认进行异或运算。
293			// $callback 参数：第 i 位 $text, 第 i 位 $key, 下标 i
294			// $callback 返回 false 时，结束字符循环.
295
296			$text = (string) $text;
297			$key = (string) $key;
298			$keyLength = strlen($key);
299			if (is_null($callback)) {
300			$callback = function ($a, $b) {
301			return $a ^ $b;
302			};
303			}
304
305			$result = '';
306			$textLength = strlen($text);
307			for ($i = 0; $i < $textLength; $i++) {
308			$tmp = $callback($text[$i], $key[$i % $keyLength], $i);
309			if (false === $tmp) {
310			break;
311			}
312			$result .= $tmp;
313			}
314
315			return $result;
316			}
317
318			/**
319			* Convert an integer to a string.
320			* It is useful to shorten a database ID to URL keyword, e.g. 54329 to 'xkE'.
321			*
322			* @param int $number
323			* @param string\|null $characters
324			* @return string
325			*/
326			public static function int2string($number, string $characters = null)
327			{
328			$number = (int) $number;
329			if ($number < 0) {
330			return '';
331			}
332
333			if (is_null($characters)) {
334			$characters = config('support.int2string');
335			}
336
337			$charactersLength = strlen($characters);
338			$string = '';
339
340			while ($number >= $charactersLength) {
341			$mod = (int) bcmod($number, $charactersLength);
342			$number = (int) bcdiv($number, $charactersLength);
343			$string = $characters[$mod].$string;
344			}
345
346			return $characters[$number].$string;
347			}
348
349			/**
350			* Convert an `int2string` generated string back to an integer.
351			*
352			* @param string $string
353			* @param string\|null $characters
354			* @return int
355			*/
356			public static function string2int($string, string $characters = null)
357			{
358			$string = strrev($string);
359			$stringLength = strlen($string);
360
361			if (is_null($characters)) {
362			$characters = config('support.int2string');
363			}
364			$charactersLength = strlen($characters);
365
366			$number = 0;
367			for ($i = 0; $i < $stringLength; $i++) {
368			$index = strpos($characters, $string[$i]);
369			$number = (int) bcadd($number, bcmul($index, bcpow($charactersLength, $i)));
370			}
371
372			return $number;
373			}
374			}
375

ElfSundae / laravel-support

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Helper::sampleEncrypt() A

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