PasswordGenerator::getTopology() - Code Metrics - Inspection of "getTopology method refactor" - linna/framework - Measure and Improve Code Quality continuously with Scrutinizer

Test Setup Failed

Branch — master (977662)

by Sebastian

created 2017-11-10 08:47 UTC

PasswordGenerator::getTopology() A

↳ Parent: PasswordGenerator

Complexity

Conditions	2
Paths	2

Size

Total Lines	11
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	11
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	6
nc	2
nop	1

<?php

/**
 * Linna Framework.
 *
 * @author Sebastian Rapetti <[email protected]>
 * @copyright (c) 2017, Sebastian Rapetti
 * @license http://opensource.org/licenses/MIT MIT License
 */
declare(strict_types=1);

namespace Linna\Authentication;

use InvalidArgumentException;

/**
 * Generate random password with random topology, this class use php7
 * random_int() function for generate random numbers.
 */
class PasswordGenerator
{
    /**
     * @var array Characters intervall utf8 dec rappresentation
     */
    private $chars = [
        [[65, 90]], //u 117
        [[97, 122]], //l 108
        [[48, 57]], //d 100
        [[33, 47], [58, 64], [91, 96], [123, 126]], //s 115
    ];

    /**
     * @var array Characters utf8 dec rappresentation
     */
    private $groups = [
        117 => 0, //u
        108 => 1, //l
        100 => 2, //d
        115 => 3  //s
    ];

    
    /**
     * Generate a random password.
     * <pre><code class="php">use Linna\Auth\PasswordGenerator;
     *
     * $passwordGenerator = new PasswordGenerator();
     * $random = $passwordGenerator->getFromRandom(20);
     *
     * //var_dump result
     * //r4Q,1J*tM7D_99q0u>61
     * var_dump($random);
     * </code></pre>
     *
     * @param int $length Desiderated password length.
     * @return string Random password.
     */
    public function getFromRandom(int $length): string
    {
        $password = [];

        while ($length) {
            $password[] = $this->getRandomChar($this->chars[random_int(0, 3)]);
            
            $length--;
        }
        
        return implode($password);
    }

    /**
     * Return topology for given password.
     * <pre><code class="php">use Linna\Auth\PasswordGenerator;
     *
     * $passwordGenerator = new PasswordGenerator();
     * $topology = $passwordGenerator->getTopology('r4Q,1J*tM7D_99q0u>61');
     *
     * //var_dump result
     * //ldusdusludusddldlsdd
     * var_dump($topology);
     * </code></pre>
     * @param string $password Password.
     *
     * @return string Topology for the argument passed password.
     */
    public function getTopology(string $password): string
    {
        $array = str_split($password);
        $topology = [];

        foreach ($array as $char) {
            $topology[] = $this->getTopologyGroup($char);
        }

        return implode($topology);
    }

    /**
     * Return topology group.
     *
     * @param string $char
     *
     * @return string
     */
    private function getTopologyGroup(string $char) : string
    {
        $int = ord($char);

        if ($this->inRanges($int, $this->chars[0])) {
            return 'u';
        }

        if ($this->inRanges($int, $this->chars[1])) {
            return 'l';
        }

        if ($this->inRanges($int, $this->chars[2])) {
            return 'd';
        }

        if ($this->inRanges($int, $this->chars[3])) {
            return 's';
        }
    }
    
    /**
     * Generate a random password corresponding at the given topology.
     * <pre><code class="php">use Linna\Auth\PasswordGenerator;
     *
     * $passwordGenerator = new PasswordGenerator();
     * $random = $passwordGenerator->getFromTopology('ldusdusludusddldlsdd');
     *
     * //var_dump result
     * //r4Q,1J*tM7D_99q0u>61
     * var_dump($random);
     * </code></pre>
     *
     * @param string $topology Topology for generate password.
     * @return string Random password corresponding the given topology.
     *
     * @throws InvalidArgumentException If invalid pattern is provided.
     */
    public function getFromTopology(string $topology): string
    {
        $array = str_split(strtolower($topology));
        $password = [];

        foreach ($array as $char) {
            $int = ord($char);

            if (isset($this->groups[$int])) {
                $key = $this->groups[$int];
                $password[] = $this->getRandomChar($this->chars[$key]);

                continue;
            }

            throw new InvalidArgumentException('Invalid pattern provided, accepted only u, l, d and s');
        }

        return implode($password);
    }

    /**
     * Get random char between.
     *
     * @param array $interval
     * @return string
     */
    private function getRandomChar(array $interval): string
    {
        do {
            $int = random_int(33, 122);
            if ($this->inRanges($int, $interval)) {
                break;
            }
        } while (true);
            
        return chr($int);
    }

    /**
     * Check if value is between given range.
     *
     * @param mixed $value
     * @param array $ranges
     *
     * @return bool
     */
    private function inRanges($value, array $ranges): bool
    {
        foreach ($ranges as $range) {
            if ($value >= $range[0] && $value <= $range[1]) {
                return true;
            }
        }

        return false;
    }
}


1			<?php
2
3			/**
4			* Linna Framework.
5			*
6			* @author Sebastian Rapetti <[email protected]>
7			* @copyright (c) 2017, Sebastian Rapetti
8			* @license http://opensource.org/licenses/MIT MIT License
9			*/
10			declare(strict_types=1);
11
12			namespace Linna\Authentication;
13
14			use InvalidArgumentException;
15
16			/**
17			* Generate random password with random topology, this class use php7
18			* random_int() function for generate random numbers.
19			*/
20			class PasswordGenerator
21			{
22			/**
23			* @var array Characters intervall utf8 dec rappresentation
24			*/
25			private $chars = [
26			[[65, 90]], //u 117
27			[[97, 122]], //l 108
28			[[48, 57]], //d 100
29			[[33, 47], [58, 64], [91, 96], [123, 126]], //s 115
30			];
31
32			/**
33			* @var array Characters utf8 dec rappresentation
34			*/
35			private $groups = [
36			117 => 0, //u
37			108 => 1, //l
38			100 => 2, //d
39			115 => 3 //s
40			];
41
42
43			/**
44			* Generate a random password.
45			* <pre><code class="php">use Linna\Auth\PasswordGenerator;
46			*
47			* $passwordGenerator = new PasswordGenerator();
48			* $random = $passwordGenerator->getFromRandom(20);
49			*
50			* //var_dump result
51			* //r4Q,1J*tM7D_99q0u>61
52			* var_dump($random);
53			* </code></pre>
54			*
55			* @param int $length Desiderated password length.
56			* @return string Random password.
57			*/
58			public function getFromRandom(int $length): string
59			{
60			$password = [];
61
62			while ($length) {
63			$password[] = $this->getRandomChar($this->chars[random_int(0, 3)]);
64
65			$length--;
66			}
67
68			return implode($password);
69			}
70
71			/**
72			* Return topology for given password.
73			* <pre><code class="php">use Linna\Auth\PasswordGenerator;
74			*
75			* $passwordGenerator = new PasswordGenerator();
76			* $topology = $passwordGenerator->getTopology('r4Q,1J*tM7D_99q0u>61');
77			*
78			* //var_dump result
79			* //ldusdusludusddldlsdd
80			* var_dump($topology);
81			* </code></pre>
82			* @param string $password Password.
83			*
84			* @return string Topology for the argument passed password.
85			*/
86			public function getTopology(string $password): string
87			{
88			$array = str_split($password);
89			$topology = [];
90
91			foreach ($array as $char) {
92			$topology[] = $this->getTopologyGroup($char);
93			}
94
95			return implode($topology);
96			}
97
98			/**
99			* Return topology group.
100			*
101			* @param string $char
102			*
103			* @return string
104			*/
105			private function getTopologyGroup(string $char) : string
106			{
107			$int = ord($char);
108
109			if ($this->inRanges($int, $this->chars[0])) {
110			return 'u';
111			}
112
113			if ($this->inRanges($int, $this->chars[1])) {
114			return 'l';
115			}
116
117			if ($this->inRanges($int, $this->chars[2])) {
118			return 'd';
119			}
120
121			if ($this->inRanges($int, $this->chars[3])) {
122			return 's';
123			}
124			}
125
126			/**
127			* Generate a random password corresponding at the given topology.
128			* <pre><code class="php">use Linna\Auth\PasswordGenerator;
129			*
130			* $passwordGenerator = new PasswordGenerator();
131			* $random = $passwordGenerator->getFromTopology('ldusdusludusddldlsdd');
132			*
133			* //var_dump result
134			* //r4Q,1J*tM7D_99q0u>61
135			* var_dump($random);
136			* </code></pre>
137			*
138			* @param string $topology Topology for generate password.
139			* @return string Random password corresponding the given topology.
140			*
141			* @throws InvalidArgumentException If invalid pattern is provided.
142			*/
143			public function getFromTopology(string $topology): string
144			{
145			$array = str_split(strtolower($topology));
146			$password = [];
147
148			foreach ($array as $char) {
149			$int = ord($char);
150
151			if (isset($this->groups[$int])) {
152			$key = $this->groups[$int];
153			$password[] = $this->getRandomChar($this->chars[$key]);
154
155			continue;
156			}
157
158			throw new InvalidArgumentException('Invalid pattern provided, accepted only u, l, d and s');
159			}
160
161			return implode($password);
162			}
163
164			/**
165			* Get random char between.
166			*
167			* @param array $interval
168			* @return string
169			*/
170			private function getRandomChar(array $interval): string
171			{
172			do {
173			$int = random_int(33, 122);
174			if ($this->inRanges($int, $interval)) {
175			break;
176			}
177			} while (true);
178
179			return chr($int);
180			}
181
182			/**
183			* Check if value is between given range.
184			*
185			* @param mixed $value
186			* @param array $ranges
187			*
188			* @return bool
189			*/
190			private function inRanges($value, array $ranges): bool
191			{
192			foreach ($ranges as $range) {
193			if ($value >= $range[0] && $value <= $range[1]) {
194			return true;
195			}
196			}
197
198			return false;
199			}
200			}
201

linna / framework

Branch — master (977662)

PasswordGenerator::getTopology() A

Complexity

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