TransRef::secure_crypt() - Code Metrics - Inspection of "feat(paystack): Generate unique secure transaction..." - unicodeveloper/laravel-paystack - Measure and Improve Code Quality continuously with Scrutinizer

Completed

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by PROSPER

created 2016-02-01 06:30 UTC

TransRef::secure_crypt() A

↳ Parent: TransRef

Complexity

Conditions	3
Paths	2

Size

Total Lines	18
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	18
rs	9.4285
cc	3
eloc	13
nc	2
nop	2

<?php

/*
 * This file is part of the Laravel Paystack package.
 *
 * (c) Prosper Otemuyiwa <[email protected]>
 *
 * Source http://stackoverflow.com/a/13733588/179104
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Unicodeveloper\Paystack;

class TransRef {

    public static function getPool( $type = 'alnum')
    {
        switch ( $type ) {
            case 'alnum':
                $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
                break;
            case 'alpha':
                $pool = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
                break;
            case 'hexdec':
                $pool = '0123456789abcdef';
                break;
            case 'numeric':
                $pool = '0123456789';
                break;
            case 'nozero':
                $pool = '123456789';
                break;
            case 'distinct':
                $pool = '2345679ACDEFHJKLMNPRSTUVWXYZ';
                break;
            default:
                $pool = (string) $type;
                break;
        }

        return $pool;
    }


    public static function secure_crypt($min, $max) {
        $range = $max - $min;

        if ($range < 0) {
            return $min; // not so random...
        }

        $log    = log($range, 2);
        $bytes  = (int) ($log / 8) + 1; // length in bytes
        $bits   = (int) $log + 1; // length in bits
        $filter = (int) (1 << $bits) - 1; // set all lower bits to 1
        do {
            $rnd = hexdec( bin2hex( openssl_random_pseudo_bytes( $bytes ) ) );
            $rnd = $rnd & $filter; // discard irrelevant bits
        } while ($rnd >= $range);

        return $min + $rnd;
    }

    public static function getHashedToken($length = 25)
    {
        $token = "";
        $max   = strlen(static::getPool());
        for ($i = 0; $i < $length; $i++) {
            $token .= static::getPool()[static::secure_crypt(0, $max)];
        }

        return $token;
    }

}


1			<?php
2
3			/*
4			* This file is part of the Laravel Paystack package.
5			*
6			* (c) Prosper Otemuyiwa <[email protected]>
7			*
8			* Source http://stackoverflow.com/a/13733588/179104
9			*
10			* For the full copyright and license information, please view the LICENSE
11			* file that was distributed with this source code.
12			*/
13
14			namespace Unicodeveloper\Paystack;
15
16			class TransRef {
17
18			public static function getPool( $type = 'alnum')
19			{
20			switch ( $type ) {
21			case 'alnum':
22			$pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
23			break;
24			case 'alpha':
25			$pool = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
26			break;
27			case 'hexdec':
28			$pool = '0123456789abcdef';
29			break;
30			case 'numeric':
31			$pool = '0123456789';
32			break;
33			case 'nozero':
34			$pool = '123456789';
35			break;
36			case 'distinct':
37			$pool = '2345679ACDEFHJKLMNPRSTUVWXYZ';
38			break;
39			default:
40			$pool = (string) $type;
41			break;
42			}
43
44			return $pool;
45			}
46
47
48			public static function secure_crypt($min, $max) {
49			$range = $max - $min;
50
51			if ($range < 0) {
52			return $min; // not so random...
53			}
54
55			$log = log($range, 2);
56			$bytes = (int) ($log / 8) + 1; // length in bytes
57			$bits = (int) $log + 1; // length in bits
58			$filter = (int) (1 << $bits) - 1; // set all lower bits to 1
59			do {
60			$rnd = hexdec( bin2hex( openssl_random_pseudo_bytes( $bytes ) ) );
61			$rnd = $rnd & $filter; // discard irrelevant bits
62			} while ($rnd >= $range);
63
64			return $min + $rnd;
65			}
66
67			public static function getHashedToken($length = 25)
68			{
69			$token = "";
70			$max = strlen(static::getPool());
71			for ($i = 0; $i < $length; $i++) {
72			$token .= static::getPool()[static::secure_crypt(0, $max)];
73			}
74
75			return $token;
76			}
77
78			}
79

unicodeveloper / laravel-paystack

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TransRef::secure_crypt() A

Complexity

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Duplication

Importance

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