|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace App\Services; |
|
4
|
|
|
|
|
5
|
|
|
use App\Models\Album; |
|
6
|
|
|
use App\Models\Artist; |
|
7
|
|
|
use App\Models\Playlist; |
|
8
|
|
|
use App\Models\Song; |
|
9
|
|
|
use App\Models\SongZipArchive; |
|
10
|
|
|
use Illuminate\Database\Eloquent\Collection; |
|
11
|
|
|
use InvalidArgumentException; |
|
12
|
|
|
|
|
13
|
|
|
class DownloadService |
|
14
|
|
|
{ |
|
15
|
|
|
private $s3Service; |
|
16
|
|
|
|
|
17
|
2 |
|
public function __construct(S3Service $s3Service) |
|
18
|
|
|
{ |
|
19
|
2 |
|
$this->s3Service = $s3Service; |
|
20
|
2 |
|
} |
|
21
|
|
|
|
|
22
|
|
|
/** |
|
23
|
|
|
* Generic method to generate a download archive from various source types. |
|
24
|
|
|
* |
|
25
|
|
|
* @param Song|Collection|Album|Artist|Playlist $mixed |
|
26
|
|
|
* |
|
27
|
|
|
* @throws InvalidArgumentException |
|
28
|
|
|
* |
|
29
|
|
|
* @return string Full path to the generated archive |
|
30
|
|
|
*/ |
|
31
|
|
|
public function from($mixed): string |
|
32
|
|
|
{ |
|
33
|
|
|
switch (get_class($mixed)) { |
|
34
|
|
|
case Song::class: |
|
35
|
|
|
return $this->fromSong($mixed); |
|
|
|
|
|
|
36
|
|
|
case Collection::class: |
|
37
|
|
|
return $this->fromMultipleSongs($mixed); |
|
|
|
|
|
|
38
|
|
|
case Album::class: |
|
39
|
|
|
return $this->fromAlbum($mixed); |
|
|
|
|
|
|
40
|
|
|
case Artist::class: |
|
41
|
|
|
return $this->fromArtist($mixed); |
|
|
|
|
|
|
42
|
|
|
case Playlist::class: |
|
43
|
|
|
return $this->fromPlaylist($mixed); |
|
|
|
|
|
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
throw new InvalidArgumentException('Unsupported download type.'); |
|
47
|
|
|
} |
|
48
|
|
|
|
|
49
|
2 |
|
public function fromSong(Song $song): string |
|
50
|
|
|
{ |
|
51
|
2 |
|
if ($s3Params = $song->s3_params) { |
|
52
|
|
|
// The song is hosted on Amazon S3. |
|
53
|
|
|
// We download it back to our local server first. |
|
54
|
|
|
$url = $this->s3Service->getSongPublicUrl($song); |
|
55
|
|
|
abort_unless($url, 404); |
|
|
|
|
|
|
56
|
|
|
|
|
57
|
|
|
$localPath = sys_get_temp_dir().DIRECTORY_SEPARATOR.basename($s3Params['key']); |
|
58
|
|
|
|
|
59
|
|
|
// The following function requires allow_url_fopen to be ON. |
|
60
|
|
|
// We're just assuming that to be the case here. |
|
61
|
|
|
copy($url, $localPath); |
|
62
|
|
|
} else { |
|
63
|
|
|
// The song is hosted locally. Make sure the file exists. |
|
64
|
2 |
|
$localPath = $song->path; |
|
65
|
2 |
|
abort_unless(file_exists($localPath), 404); |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
2 |
|
return $localPath; |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
|
|
protected function fromMultipleSongs(Collection $songs): string |
|
72
|
|
|
{ |
|
73
|
|
|
if ($songs->count() === 1) { |
|
74
|
|
|
return $this->fromSong($songs->first()); |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
return (new SongZipArchive()) |
|
78
|
|
|
->addSongs($songs) |
|
79
|
|
|
->finish() |
|
80
|
|
|
->getPath(); |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
|
|
protected function fromPlaylist(Playlist $playlist): string |
|
84
|
|
|
{ |
|
85
|
|
|
return $this->fromMultipleSongs($playlist->songs); |
|
86
|
|
|
} |
|
87
|
|
|
|
|
88
|
|
|
protected function fromAlbum(Album $album): string |
|
89
|
|
|
{ |
|
90
|
|
|
return $this->fromMultipleSongs($album->songs); |
|
91
|
|
|
} |
|
92
|
|
|
|
|
93
|
|
|
protected function fromArtist(Artist $artist): string |
|
94
|
|
|
{ |
|
95
|
|
|
return $this->fromMultipleSongs($artist->songs); |
|
|
|
|
|
|
96
|
|
|
} |
|
97
|
|
|
} |
|
98
|
|
|
|
phanan /
koel
Loading history...