EthereumValidator::isChecksumAddress() - Code Metrics - Pashaster12/laravel-crypto-stats - Measure and Improve Code Quality continuously with Scrutinizer

EthereumValidator::isChecksumAddress() A
last analyzed 2018-08-24 18:53 UTC

↳ Parent: EthereumValidator

Complexity

Conditions	6
Paths	3

Size

Total Lines	16
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	6
eloc	8
nc	3
nop	1
dl	0
loc	16
rs	9.2222
c	0
b	0
f	0

<?php

namespace LaravelCryptoStats\Services;

class EthereumValidator
{
    /**
     * Checks if the given string is an address.
     *
     * @method isAddress
     *
     * @param {String} $address the given HEX adress

     *
     * @return {Boolean}

     */
    public static function isAddress($address)
    {
        if (!preg_match('/^(0x)?[0-9a-f]{40}$/i', $address)) {
            // check if it has the basic requirements of an address
            return false;
        } elseif (!preg_match('/^(0x)?[0-9a-f]{40}$/', $address) || preg_match('/^(0x)?[0-9A-F]{40}$/', $address)) {
            // If it's all small caps or all all caps, return true
            return true;
        } else {
            // Otherwise check each case
            return self::isChecksumAddress($address);
        }
    }

    /**
     * Checks if the given string is a checksummed address.
     *
     * @method isChecksumAddress
     *
     * @param {String} $address the given HEX adress

     *
     * @return {Boolean}

     */
    public static function isChecksumAddress($address)
    {
        // Check each case
        $address = str_replace('0x', '', $address);
        $addressHash = hash('sha3-256', strtolower($address));
        $addressArray = str_split($address);
        $addressHashArray = str_split($addressHash);

        for ($i = 0; $i < 40; $i++) {
            // the nth letter should be uppercase if the nth digit of casemap is 1
            if ((intval($addressHashArray[$i], 16) > 7 && strtoupper($addressArray[$i]) !== $addressArray[$i]) || (intval($addressHashArray[$i], 16) <= 7 && strtolower($addressArray[$i]) !== $addressArray[$i])) {
                return false;
            }
        }

        return true;
    }
}


1			<?php
2
3			namespace LaravelCryptoStats\Services;
4
5			class EthereumValidator
6			{
7			/**
8			* Checks if the given string is an address.
9			*
10			* @method isAddress
11			*
12			* @param {String} $address the given HEX adress
			0 ignored issues – show Documentation Bug introduced 2018-08-23 15:50 UTC by Report Bug Copy Issue Report The doc comment `{String}` at position `0` could not be parsed: Unknown type name '{String}' at position 0 in {String}. Loading history...
13			*
14			* @return {Boolean}
			0 ignored issues – show Documentation Bug introduced 2018-08-23 16:04 UTC by Report Bug Copy Issue Report The doc comment `{Boolean}` at position `0` could not be parsed: Unknown type name '{Boolean}' at position 0 in {Boolean}. Loading history...
15			*/
16			public static function isAddress($address)
17			{
18			if (!preg_match('/^(0x)?[0-9a-f]{40}$/i', $address)) {
19			// check if it has the basic requirements of an address
20			return false;
21			} elseif (!preg_match('/^(0x)?[0-9a-f]{40}$/', $address) \|\| preg_match('/^(0x)?[0-9A-F]{40}$/', $address)) {
22			// If it's all small caps or all all caps, return true
23			return true;
24			} else {
25			// Otherwise check each case
26			return self::isChecksumAddress($address);
27			}
28			}
29
30			/**
31			* Checks if the given string is a checksummed address.
32			*
33			* @method isChecksumAddress
34			*
35			* @param {String} $address the given HEX adress
			0 ignored issues – show Documentation Bug introduced 2018-08-23 15:50 UTC by Report Bug Copy Issue Report The doc comment `{String}` at position `0` could not be parsed: Unknown type name '{String}' at position 0 in {String}. Loading history...
36			*
37			* @return {Boolean}
			0 ignored issues – show Documentation Bug introduced 2018-08-23 16:04 UTC by Report Bug Copy Issue Report The doc comment `{Boolean}` at position `0` could not be parsed: Unknown type name '{Boolean}' at position 0 in {Boolean}. Loading history...
38			*/
39			public static function isChecksumAddress($address)
40			{
41			// Check each case
42			$address = str_replace('0x', '', $address);
43			$addressHash = hash('sha3-256', strtolower($address));
44			$addressArray = str_split($address);
45			$addressHashArray = str_split($addressHash);
46
47			for ($i = 0; $i < 40; $i++) {
48			// the nth letter should be uppercase if the nth digit of casemap is 1
49			if ((intval($addressHashArray[$i], 16) > 7 && strtoupper($addressArray[$i]) !== $addressArray[$i]) \|\| (intval($addressHashArray[$i], 16) <= 7 && strtolower($addressArray[$i]) !== $addressArray[$i])) {
50			return false;
51			}
52			}
53
54			return true;
55			}
56			}
57

Pashaster12 / laravel-crypto-stats

EthereumValidator::isChecksumAddress() A last analyzed 2018-08-24 18:53 UTC

Complexity

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EthereumValidator::isChecksumAddress() A
last analyzed 2018-08-24 18:53 UTC