ExifImageType::doDetect() - Code Metrics - rosell-dk/image-mime-type-guesser - Measure and Improve Code Quality continuously with Scrutinizer

ExifImageType::doDetect() A
last analyzed 2021-12-08 16:55 UTC

↳ Parent: ExifImageType

Complexity

Conditions	4
Paths	5

Size

Total Lines	19
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	4.0466

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	4
eloc	7
c	1
b	0
f	0
nc	5
nop	1
dl	0
loc	19
ccs	6
cts	7
cp	0.8571
crap	4.0466
rs	10

<?php

namespace ImageMimeTypeGuesser\Detectors;

use \ImageMimeTypeGuesser\Detectors\AbstractDetector;

class ExifImageType extends AbstractDetector
{

    /**
     * Try to detect mime type of image using *exif_imagetype*.
     *
     * Returns:
     * - mime type (string) (if it is in fact an image, and type could be determined)
     * - false (if it is not an image type that the server knowns about)
     * - null  (if nothing can be determined)
     *
     * @param  string  $filePath  The path to the file
     * @return string|false|null  mimetype (if it is an image, and type could be determined),
     *    false (if it is not an image type that the server knowns about)
     *    or null (if nothing can be determined)
     */
    protected function doDetect($filePath)
    {
        // exif_imagetype is fast, however not available on all systems,
        // It may return false. In that case we can rely on that the file is not an image (and return false)
        if (function_exists('exif_imagetype')) {
            try {
                $imageType = exif_imagetype($filePath);
                return ($imageType ? image_type_to_mime_type($imageType) : false);
            } catch (\Exception $e) {
                // Might for example get "Read error!"
                // (for some reason, this happens on very small files)
                // We handle such errors as indeterminable (null)
                return null;
                // well well, don't let this stop us
                //echo $e->getMessage();
                //throw($e);
            }
        }
        return null;
    }
}


1		<?php
2
3		namespace ImageMimeTypeGuesser\Detectors;
4
5		use \ImageMimeTypeGuesser\Detectors\AbstractDetector;
6
7		class ExifImageType extends AbstractDetector
8		{
9
10		/**
11		* Try to detect mime type of image using exif_imagetype.
12		*
13		* Returns:
14		* - mime type (string) (if it is in fact an image, and type could be determined)
15		* - false (if it is not an image type that the server knowns about)
16		* - null (if nothing can be determined)
17		*
18		* @param string $filePath The path to the file
19		* @return string\|false\|null mimetype (if it is an image, and type could be determined),
20		* false (if it is not an image type that the server knowns about)
21		* or null (if nothing can be determined)
22		*/
23	1	protected function doDetect($filePath)
24		{
25		// exif_imagetype is fast, however not available on all systems,
26		// It may return false. In that case we can rely on that the file is not an image (and return false)
27	1	if (function_exists('exif_imagetype')) {
28		try {
29	1	$imageType = exif_imagetype($filePath);
30	1	return ($imageType ? image_type_to_mime_type($imageType) : false);
31	1	} catch (\Exception $e) {
32		// Might for example get "Read error!"
33		// (for some reason, this happens on very small files)
34		// We handle such errors as indeterminable (null)
35	1	return null;
36		// well well, don't let this stop us
37		//echo $e->getMessage();
38		//throw($e);
39		}
40		}
41		return null;
42		}
43		}
44

rosell-dk / image-mime-type-guesser

ExifImageType::doDetect() A last analyzed 2021-12-08 16:55 UTC

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ExifImageType::doDetect() A
last analyzed 2021-12-08 16:55 UTC