FileSignatureUtils::hasSignature() - Code Metrics - webservices-nl/utils - Measure and Improve Code Quality continuously with Scrutinizer

FileSignatureUtils::hasSignature() A
last analyzed 2017-03-21 13:18 UTC

↳ Parent: FileSignatureUtils

Complexity

Conditions	2
Paths	2

Size

Total Lines	15
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	11
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	15
ccs	11
cts	11
cp	1
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	9
nc	2
nop	2
crap	2

<?php

namespace WebservicesNl\Utils;

/**
 * Class FileSignatureUtils
 */
class FileSignatureUtils
{
    const PNG = '89504E470D0A1A0A';
    const JPG = 'FFD8FFE0';
    const PDF = '25504446';
    const GIF = '47494638';
    const BMP = '424D';
    const XML = '3C3F786D6C';

    /**
     * Determine whether the given string contains one of the registered signatures
     *
     * @param string $string    the string data to check
     * @param string $signature the hex signature
     *
     * @throws \InvalidArgumentException
     *
     * @return bool
     */
    public static function hasSignature($string, $signature)
    {
        if (ctype_xdigit($signature) === false) {
            throw new \InvalidArgumentException(sprintf('Invalid HEX signature provided: %s', $signature));
        }
        $signatureChars = str_split($signature, 2);
        $hexChars = array_map(
            function ($val) {
                return strtoupper(bin2hex($val));
            },
            str_split(substr($string, 0, count($signatureChars)))
        );

        return $hexChars === $signatureChars;
    }
}


1		<?php
2
3		namespace WebservicesNl\Utils;
4
5		/**
6		* Class FileSignatureUtils
7		*/
8		class FileSignatureUtils
9		{
10		const PNG = '89504E470D0A1A0A';
11		const JPG = 'FFD8FFE0';
12		const PDF = '25504446';
13		const GIF = '47494638';
14		const BMP = '424D';
15		const XML = '3C3F786D6C';
16
17		/**
18		* Determine whether the given string contains one of the registered signatures
19		*
20		* @param string $string the string data to check
21		* @param string $signature the hex signature
22		*
23		* @throws \InvalidArgumentException
24		*
25		* @return bool
26		*/
27	3	public static function hasSignature($string, $signature)
28		{
29	3	if (ctype_xdigit($signature) === false) {
30	1	throw new \InvalidArgumentException(sprintf('Invalid HEX signature provided: %s', $signature));
31		}
32	2	$signatureChars = str_split($signature, 2);
33	2	$hexChars = array_map(
34	2	function ($val) {
35	2	return strtoupper(bin2hex($val));
36	2	},
37	2	str_split(substr($string, 0, count($signatureChars)))
38	2	);
39
40	2	return $hexChars === $signatureChars;
41		}
42		}
43

webservices-nl / utils

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FileSignatureUtils::hasSignature() A last analyzed 2017-03-21 13:18 UTC

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FileSignatureUtils::hasSignature() A
last analyzed 2017-03-21 13:18 UTC