|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace CodeBlog\ToWebP; |
|
4
|
|
|
|
|
5
|
|
|
/** |
|
6
|
|
|
* Class AbstractConverter |
|
7
|
|
|
* |
|
8
|
|
|
* @author Whallysson Avelino <https://github.com/whallysson> |
|
9
|
|
|
* @package CodeBlog\ToWebP |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
abstract class AbstractConverter |
|
13
|
|
|
{ |
|
14
|
|
|
|
|
15
|
|
|
/** @var */ |
|
16
|
|
|
protected $source; |
|
17
|
|
|
|
|
18
|
|
|
/** @var */ |
|
19
|
|
|
protected $destination; |
|
20
|
|
|
|
|
21
|
|
|
/** @var int */ |
|
22
|
|
|
protected $quality; |
|
23
|
|
|
|
|
24
|
|
|
/** @var bool */ |
|
25
|
|
|
protected $strip; |
|
26
|
|
|
|
|
27
|
|
|
/** @var string */ |
|
28
|
|
|
protected $extension; |
|
29
|
|
|
|
|
30
|
|
|
/** |
|
31
|
|
|
* AbstractConverter constructor. |
|
32
|
|
|
* @param $source |
|
33
|
|
|
* @param $destination |
|
34
|
|
|
* @param int $quality |
|
35
|
|
|
* @param bool $stripMetadata |
|
36
|
|
|
*/ |
|
37
|
|
|
public function __construct($source, $destination, $quality = 85, $stripMetadata = false) |
|
38
|
|
|
{ |
|
39
|
|
|
$this->source = $source; |
|
40
|
|
|
$this->destination = $destination; |
|
41
|
|
|
$this->quality = $quality; |
|
42
|
|
|
$this->strip = $stripMetadata; |
|
43
|
|
|
|
|
44
|
|
|
$this->extension = $this->getExtension($source); |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
|
|
/** |
|
48
|
|
|
* Forces every converter to implement the following functions: |
|
49
|
|
|
* `checkRequirements()` - checks if converter's requirements are met |
|
50
|
|
|
* `convert()` - converting given image to WebP |
|
51
|
|
|
* |
|
52
|
|
|
* @return mixed |
|
53
|
|
|
*/ |
|
54
|
|
|
abstract public function checkRequirements(); |
|
55
|
|
|
|
|
56
|
|
|
/** |
|
57
|
|
|
* @return mixed |
|
58
|
|
|
*/ |
|
59
|
|
|
abstract public function convert(); |
|
60
|
|
|
|
|
61
|
|
|
/** |
|
62
|
|
|
* Returns given file's extension |
|
63
|
|
|
* |
|
64
|
|
|
* @param string $filePath |
|
65
|
|
|
* |
|
66
|
|
|
* @return string |
|
67
|
|
|
*/ |
|
68
|
|
|
public function getExtension($filePath) |
|
69
|
|
|
{ |
|
70
|
|
|
$fileExtension = pathinfo($filePath, PATHINFO_EXTENSION); |
|
71
|
|
|
return strtolower($fileExtension); |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
/** |
|
75
|
|
|
* Returns escaped version of string |
|
76
|
|
|
* |
|
77
|
|
|
* @param $string |
|
78
|
|
|
* @return mixed|string|string[]|null |
|
79
|
|
|
*/ |
|
80
|
|
|
public function escapeFilename($string) |
|
81
|
|
|
{ |
|
82
|
|
|
// Escaping whitespaces & quotes |
|
83
|
|
|
$string = preg_replace('/\s/', '\\ ', $string); |
|
84
|
|
|
$string = filter_var($string, FILTER_SANITIZE_MAGIC_QUOTES); |
|
85
|
|
|
|
|
86
|
|
|
// Stripping control characters |
|
87
|
|
|
// see https://stackoverflow.com/questions/12769462/filter-flag-strip-low-vs-filter-flag-strip-high |
|
88
|
|
|
$string = filter_var($string, FILTER_SANITIZE_STRING, FILTER_FLAG_STRIP_LOW); |
|
89
|
|
|
|
|
90
|
|
|
return $string; |
|
91
|
|
|
} |
|
92
|
|
|
|
|
93
|
|
|
} |
|
94
|
|
|
|
whallysson /
conveter-php-webp
