|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/* |
|
4
|
|
|
* This file is part of the Silverback API Components Bundle Project |
|
5
|
|
|
* |
|
6
|
|
|
* (c) Daniel West <[email protected]> |
|
7
|
|
|
* |
|
8
|
|
|
* For the full copyright and license information, please view the LICENSE |
|
9
|
|
|
* file that was distributed with this source code. |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
declare(strict_types=1); |
|
13
|
|
|
|
|
14
|
|
|
namespace Silverback\ApiComponentsBundle\Model\Uploadable; |
|
15
|
|
|
|
|
16
|
|
|
use Symfony\Component\HttpFoundation\File\Exception\FileException; |
|
17
|
|
|
use Symfony\Component\HttpFoundation\File\File; |
|
18
|
|
|
use Symfony\Component\Mime\MimeTypes; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* Based on https://github.com/hshn/base64-encoded-file/blob/master/src/HttpFoundation/File/Base64EncodedFile.php |
|
22
|
|
|
* Additional support for data uri - regular expression detection. |
|
23
|
|
|
* |
|
24
|
|
|
* @author Daniel West <[email protected]> |
|
25
|
|
|
*/ |
|
26
|
|
|
class DataUriFile extends File |
|
27
|
|
|
{ |
|
28
|
|
|
/** |
|
29
|
|
|
* @param string $encoded |
|
30
|
|
|
* @param bool $checkPath |
|
31
|
|
|
*/ |
|
32
|
|
|
public function __construct($encoded, $checkPath = true) |
|
33
|
|
|
{ |
|
34
|
|
|
parent::__construct($this->restoreToTemporary($encoded), $checkPath); |
|
35
|
|
|
} |
|
36
|
|
|
|
|
37
|
|
|
/** |
|
38
|
|
|
* @param string $encoded |
|
39
|
|
|
* |
|
40
|
|
|
* @throws FileException |
|
41
|
|
|
*/ |
|
42
|
|
|
private function restoreToTemporary($encoded): string |
|
43
|
|
|
{ |
|
44
|
|
|
preg_match('/^(?:(?:data:(?:\/\/)?([A-Za-z]+\/[A-Za-z.-]+)(?:;(base64))?,|)(?:(.+)|((?:[A-Za-z0-9+\/]{4})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=)?)))$/', $encoded, $matches); |
|
45
|
|
|
|
|
46
|
|
|
$mimeType = $matches[1]; |
|
47
|
|
|
$base64Match = 'base64' === $matches[2]; |
|
48
|
|
|
$isBase64 = '' === $mimeType || $base64Match; |
|
49
|
|
|
if ($isBase64 && !$mimeType) { |
|
50
|
|
|
return $this->decodePlainBase64($encoded); |
|
51
|
|
|
} |
|
52
|
|
|
if (!$isBase64) { |
|
53
|
|
|
return $this->decodeDataUri($matches[3], $mimeType); |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
return $this->decodeBase64Data($mimeType, $encoded); |
|
57
|
|
|
} |
|
58
|
|
|
|
|
59
|
|
|
private function decodePlainBase64(string $encoded): string |
|
60
|
|
|
{ |
|
61
|
|
|
if (false === $decoded = base64_decode($encoded, true)) { |
|
62
|
|
|
throw new FileException('Unable to decode the string as base64'); |
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
|
|
$path = $this->getTempFileBasePath(); |
|
66
|
|
|
|
|
67
|
|
|
if (false === file_put_contents($path, $decoded, FILE_BINARY)) { |
|
68
|
|
|
throw new FileException(sprintf('Unable to write the file "%s"', $path)); |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
|
|
return $path; |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
private function decodeDataUri(string $dataUriMatch, string $mimeType): string |
|
75
|
|
|
{ |
|
76
|
|
|
$target = $this->createTempFileTarget($mimeType); |
|
77
|
|
|
$content = urldecode($dataUriMatch); |
|
78
|
|
|
if (false === @fwrite($target->resource, $content)) { |
|
79
|
|
|
throw new FileException(sprintf('Unable to write the file "%s"', $target->path)); |
|
80
|
|
|
} |
|
81
|
|
|
$this->closeFile($target); |
|
82
|
|
|
|
|
83
|
|
|
return $target->path; |
|
84
|
|
|
} |
|
85
|
|
|
|
|
86
|
|
|
private function decodeBase64Data(string $mimeType, string $fullMatch): string |
|
87
|
|
|
{ |
|
88
|
|
|
$target = $this->createTempFileTarget($mimeType); |
|
89
|
|
|
|
|
90
|
|
|
$source = @fopen($fullMatch, 'r'); |
|
91
|
|
|
if (false === $source) { |
|
92
|
|
|
throw new FileException('Unable to decode strings as base64'); |
|
93
|
|
|
} |
|
94
|
|
|
|
|
95
|
|
|
if (false === stream_copy_to_stream($source, $target->resource)) { |
|
96
|
|
|
throw new FileException(sprintf('Unable to write the file "%s"', $target->path)); |
|
97
|
|
|
} |
|
98
|
|
|
|
|
99
|
|
|
if (false === @fclose($source)) { |
|
100
|
|
|
throw new FileException(sprintf('Unable to close data stream')); |
|
101
|
|
|
} |
|
102
|
|
|
|
|
103
|
|
|
$this->closeFile($target); |
|
104
|
|
|
|
|
105
|
|
|
return $target->path; |
|
106
|
|
|
} |
|
107
|
|
|
|
|
108
|
|
|
private function getTempFileBasePath(): string |
|
109
|
|
|
{ |
|
110
|
|
|
if (false === $path = tempnam($directory = sys_get_temp_dir(), 'DataUriFile')) { |
|
111
|
|
|
throw new FileException(sprintf('Unable to create a file into the "%s" directory', $path)); |
|
112
|
|
|
} |
|
113
|
|
|
|
|
114
|
|
|
return $path; |
|
115
|
|
|
} |
|
116
|
|
|
|
|
117
|
|
|
private function createTempFileTarget(string $mimeType): object |
|
118
|
|
|
{ |
|
119
|
|
|
$path = $this->getTempFileBasePath(); |
|
120
|
|
|
|
|
121
|
|
|
if (null !== $extension = (MimeTypes::getDefault()->getExtensions($mimeType)[0] ?? null)) { |
|
122
|
|
|
$path .= '.' . $extension; |
|
123
|
|
|
} |
|
124
|
|
|
|
|
125
|
|
|
if (false === $target = @fopen($path, 'wb+')) { |
|
126
|
|
|
throw new FileException(sprintf('Unable to open the file "%s"', $path)); |
|
127
|
|
|
} |
|
128
|
|
|
|
|
129
|
|
|
$class = new class() { |
|
130
|
|
|
public string $path; |
|
131
|
|
|
public $resource; |
|
132
|
|
|
}; |
|
133
|
|
|
$class->path = $path; |
|
134
|
|
|
$class->resource = $target; |
|
135
|
|
|
|
|
136
|
|
|
return $class; |
|
137
|
|
|
} |
|
138
|
|
|
|
|
139
|
|
|
private function closeFile(object $target): void |
|
140
|
|
|
{ |
|
141
|
|
|
if (false === @fclose($target->resource)) { |
|
142
|
|
|
throw new FileException(sprintf('Unable to close the file "%s"', $target->path)); |
|
143
|
|
|
} |
|
144
|
|
|
} |
|
145
|
|
|
} |
|
146
|
|
|
|
components-web-app /
api-components-bundle
