1	<?php
2
3	namespace App\Shared\Infrastructure\Service;
4
5	/**
6	* @author Wilhelm Zwertvaegher
7	*/
8	namespace App\Shared\Infrastructure\Service;
9
10	use App\Shared\Domain\Model\TempFile;
11	use Symfony\Component\Filesystem\Filesystem;
12	use Symfony\Component\Mime\MimeTypesInterface;
13
14	final readonly class Base64FileDecoder
15	{
16	public function __construct(private Filesystem $filesystem, private MimeTypesInterface $mimeTypes)
17	{
18	}
19
20	public function decodeToTempFile(string $base64, string $originalFilename): TempFile
21	{
22
23	$tempPath = $this->filesystem->tempnam(sys_get_temp_dir(), uniqid('temp_', true));
24
25	$binary = base64_decode($base64, true);
26	if ($binary === false) {
27	throw new \RuntimeException('Invalid Base64');
28	}
29
30	$this->filesystem->dumpFile($tempPath, $binary);
31
32	$mime = $this->mimeTypes->guessMimeType($tempPath);
33
34	$expectedExtension = pathinfo($originalFilename, PATHINFO_EXTENSION);
35	$expectedMimes = $this->mimeTypes->getMimeTypes($expectedExtension);
36
37	if (!in_array($mime, $expectedMimes, true)) {
38	throw new \RuntimeException(sprintf(
39	'File contents does not match its extension (%s vs %s)',
40	$mime,
41	$expectedExtension
42	));
43	}
44
45	return new TempFile($tempPath, $originalFilename, $mime, $expectedExtension);
46	}
47	}

---

Paths

Below are the source code lines that represent each code path as identified by Xdebug. Please note a path is not necessarily coterminous with a line, a line may contain multiple paths and therefore show up more than once. Please also be aware that some paths may include implicit rather than explicit branches, e.g. an if statement always has an else as part of its logical flow even if you didn't write one.

Base64FileDecoder->__construct

16	public function __construct(private Filesystem $filesystem, private MimeTypesInterface $mimeTypes)
17	{
18	}

Base64FileDecoder->decodeToTempFile

20	public function decodeToTempFile(string $base64, string $originalFilename): TempFile
21	{
22
23	$tempPath = $this->filesystem->tempnam(sys_get_temp_dir(), uniqid('temp_', true));
24
25	$binary = base64_decode($base64, true);
26	if ($binary === false) {
27	throw new \RuntimeException('Invalid Base64');

20	public function decodeToTempFile(string $base64, string $originalFilename): TempFile
21	{
22
23	$tempPath = $this->filesystem->tempnam(sys_get_temp_dir(), uniqid('temp_', true));
24
25	$binary = base64_decode($base64, true);
26	if ($binary === false) {
30	$this->filesystem->dumpFile($tempPath, $binary);
31
32	$mime = $this->mimeTypes->guessMimeType($tempPath);
33
34	$expectedExtension = pathinfo($originalFilename, PATHINFO_EXTENSION);
35	$expectedMimes = $this->mimeTypes->getMimeTypes($expectedExtension);
36
37	if (!in_array($mime, $expectedMimes, true)) {
37	if (!in_array($mime, $expectedMimes, true)) {
37	if (!in_array($mime, $expectedMimes, true)) {
38	throw new \RuntimeException(sprintf(
39	'File contents does not match its extension (%s vs %s)',

20	public function decodeToTempFile(string $base64, string $originalFilename): TempFile
21	{
22
23	$tempPath = $this->filesystem->tempnam(sys_get_temp_dir(), uniqid('temp_', true));
24
25	$binary = base64_decode($base64, true);
26	if ($binary === false) {
30	$this->filesystem->dumpFile($tempPath, $binary);
31
32	$mime = $this->mimeTypes->guessMimeType($tempPath);
33
34	$expectedExtension = pathinfo($originalFilename, PATHINFO_EXTENSION);
35	$expectedMimes = $this->mimeTypes->getMimeTypes($expectedExtension);
36
37	if (!in_array($mime, $expectedMimes, true)) {
37	if (!in_array($mime, $expectedMimes, true)) {
37	if (!in_array($mime, $expectedMimes, true)) {
45	return new TempFile($tempPath, $originalFilename, $mime, $expectedExtension);
46	}

20	public function decodeToTempFile(string $base64, string $originalFilename): TempFile
21	{
22
23	$tempPath = $this->filesystem->tempnam(sys_get_temp_dir(), uniqid('temp_', true));
24
25	$binary = base64_decode($base64, true);
26	if ($binary === false) {
30	$this->filesystem->dumpFile($tempPath, $binary);
31
32	$mime = $this->mimeTypes->guessMimeType($tempPath);
33
34	$expectedExtension = pathinfo($originalFilename, PATHINFO_EXTENSION);
35	$expectedMimes = $this->mimeTypes->getMimeTypes($expectedExtension);
36
37	if (!in_array($mime, $expectedMimes, true)) {
37	if (!in_array($mime, $expectedMimes, true)) {
37	if (!in_array($mime, $expectedMimes, true)) {
38	throw new \RuntimeException(sprintf(
39	'File contents does not match its extension (%s vs %s)',

20	public function decodeToTempFile(string $base64, string $originalFilename): TempFile
21	{
22
23	$tempPath = $this->filesystem->tempnam(sys_get_temp_dir(), uniqid('temp_', true));
24
25	$binary = base64_decode($base64, true);
26	if ($binary === false) {
30	$this->filesystem->dumpFile($tempPath, $binary);
31
32	$mime = $this->mimeTypes->guessMimeType($tempPath);
33
34	$expectedExtension = pathinfo($originalFilename, PATHINFO_EXTENSION);
35	$expectedMimes = $this->mimeTypes->getMimeTypes($expectedExtension);
36
37	if (!in_array($mime, $expectedMimes, true)) {
37	if (!in_array($mime, $expectedMimes, true)) {
37	if (!in_array($mime, $expectedMimes, true)) {
45	return new TempFile($tempPath, $originalFilename, $mime, $expectedExtension);
46	}

{main}

3	namespace App\Shared\Infrastructure\Service;
4
5	/**
6	* @author Wilhelm Zwertvaegher
7	*/
8	namespace App\Shared\Infrastructure\Service;
9
10	use App\Shared\Domain\Model\TempFile;
11	use Symfony\Component\Filesystem\Filesystem;
12	use Symfony\Component\Mime\MimeTypesInterface;
13
14	final readonly class Base64FileDecoder
15	{
16	public function __construct(private Filesystem $filesystem, private MimeTypesInterface $mimeTypes)
17	{
18	}
19
20	public function decodeToTempFile(string $base64, string $originalFilename): TempFile
21	{
22
23	$tempPath = $this->filesystem->tempnam(sys_get_temp_dir(), uniqid('temp_', true));
24
25	$binary = base64_decode($base64, true);
26	if ($binary === false) {
27	throw new \RuntimeException('Invalid Base64');
28	}
29
30	$this->filesystem->dumpFile($tempPath, $binary);
31
32	$mime = $this->mimeTypes->guessMimeType($tempPath);
33
34	$expectedExtension = pathinfo($originalFilename, PATHINFO_EXTENSION);
35	$expectedMimes = $this->mimeTypes->getMimeTypes($expectedExtension);
36
37	if (!in_array($mime, $expectedMimes, true)) {
38	throw new \RuntimeException(sprintf(
39	'File contents does not match its extension (%s vs %s)',
40	$mime,
41	$expectedExtension
42	));
43	}
44
45	return new TempFile($tempPath, $originalFilename, $mime, $expectedExtension);
46	}