mirror of
https://github.com/koel/koel
synced 2024-11-28 06:50:27 +00:00
357 lines
11 KiB
PHP
357 lines
11 KiB
PHP
<?php
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namespace App\Services;
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use App\Models\Album;
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use App\Models\Artist;
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use App\Models\Song;
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use App\Repositories\SongRepository;
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use Exception;
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use getID3;
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use getid3_lib;
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use Illuminate\Contracts\Cache\Repository as Cache;
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use InvalidArgumentException;
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use SplFileInfo;
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use Symfony\Component\Finder\Finder;
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class FileSynchronizer
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{
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const SYNC_RESULT_SUCCESS = 1;
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const SYNC_RESULT_BAD_FILE = 2;
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const SYNC_RESULT_UNMODIFIED = 3;
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private $getID3;
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private $mediaMetadataService;
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private $helperService;
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private $songRepository;
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private $cache;
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private $finder;
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/**
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* @var SplFileInfo
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*/
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private $splFileInfo;
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/**
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* @var int
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*/
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private $fileModifiedTime;
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/**
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* @var string
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*/
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private $filePath;
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/**
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* A (MD5) hash of the file's path.
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* This value is unique, and can be used to query a Song record.
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*
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* @var string
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*/
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private $fileHash;
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/**
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* The song model that's associated with the current file.
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*
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* @var Song|null
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*/
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private $song;
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/**
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* @var string|null
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*/
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private $syncError;
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public function __construct(
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getID3 $getID3,
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MediaMetadataService $mediaMetadataService,
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HelperService $helperService,
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SongRepository $songRepository,
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Cache $cache,
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Finder $finder
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) {
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$this->getID3 = $getID3;
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$this->mediaMetadataService = $mediaMetadataService;
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$this->helperService = $helperService;
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$this->songRepository = $songRepository;
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$this->cache = $cache;
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$this->finder = $finder;
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}
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/**
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* @param string|SplFileInfo $path
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*/
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public function setFile($path): self
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{
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$this->splFileInfo = $path instanceof SplFileInfo ? $path : new SplFileInfo($path);
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// Workaround for #344, where getMTime() fails for certain files with Unicode names on Windows.
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try {
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$this->fileModifiedTime = $this->splFileInfo->getMTime();
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} catch (Exception $e) {
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// Not worth logging the error. Just use current stamp for mtime.
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$this->fileModifiedTime = time();
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}
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$this->filePath = $this->splFileInfo->getPathname();
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$this->fileHash = $this->helperService->getFileHash($this->filePath);
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$this->song = $this->songRepository->getOneById($this->fileHash);
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$this->syncError = null;
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return $this;
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}
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/**
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* Get all applicable info from the file.
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*/
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public function getFileInfo(): array
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{
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$info = $this->getID3->analyze($this->filePath);
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if (isset($info['error']) || !isset($info['playtime_seconds'])) {
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$this->syncError = isset($info['error']) ? $info['error'][0] : 'No playtime found';
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return [];
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}
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// Copy the available tags over to comment.
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// This is a helper from getID3, though it doesn't really work well.
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// We'll still prefer getting ID3v2 tags directly later.
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getid3_lib::CopyTagsToComments($info);
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$props = [
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'artist' => '',
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'album' => '',
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'albumartist' => '',
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'compilation' => false,
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'title' => basename($this->filePath, '.'.pathinfo($this->filePath, PATHINFO_EXTENSION)), // default to be file name
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'length' => $info['playtime_seconds'],
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'track' => $this->getTrackNumberFromInfo($info),
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'disc' => (int) array_get($info, 'comments.part_of_a_set.0', 1),
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'lyrics' => '',
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'cover' => array_get($info, 'comments.picture', [null])[0],
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'path' => $this->filePath,
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'mtime' => $this->fileModifiedTime,
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];
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if (!$comments = array_get($info, 'comments_html')) {
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return $props;
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}
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$this->gatherPropsFromTags($info, $comments, $props);
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$props['compilation'] = (bool) $props['compilation'] || $this->isCompilation($props);
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return $props;
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}
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/**
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* Sync the song with all available media info against the database.
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*
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* @param string[] $tags The (selective) tags to sync (if the song exists)
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* @param bool $force Whether to force syncing, even if the file is unchanged
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*/
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public function sync(array $tags, bool $force = false): int
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{
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if (!$this->isFileNewOrChanged() && !$force) {
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return self::SYNC_RESULT_UNMODIFIED;
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}
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if (!$info = $this->getFileInfo()) {
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return self::SYNC_RESULT_BAD_FILE;
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}
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// Fixes #366. If the file is new, we use all tags by simply setting $force to false.
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if ($this->isFileNew()) {
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$force = false;
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}
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if ($this->isFileChanged() || $force) {
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// This is a changed file, or the user is forcing updates.
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// In such a case, the user must have specified a list of tags to sync.
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// A sample command could be: ./artisan koel:sync --force --tags=artist,album,lyrics
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// We cater for these tags by removing those not specified.
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// There's a special case with 'album' though.
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// If 'compilation' tag is specified, 'album' must be counted in as well.
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// But if 'album' isn't specified, we don't want to update normal albums.
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// This variable is to keep track of this state.
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$changeCompilationAlbumOnly = false;
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if (in_array('compilation', $tags, true) && !in_array('album', $tags, true)) {
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$tags[] = 'album';
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$changeCompilationAlbumOnly = true;
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}
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$info = array_intersect_key($info, array_flip($tags));
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// If the "artist" tag is specified, use it.
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// Otherwise, re-use the existing model value.
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$artist = isset($info['artist']) ? Artist::get($info['artist']) : $this->song->album->artist;
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// If the "album" tag is specified, use it.
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// Otherwise, re-use the existing model value.
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if (isset($info['album'])) {
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$album = $changeCompilationAlbumOnly
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? $this->song->album
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: Album::get($artist, $info['album'], array_get($info, 'compilation'));
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} else {
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$album = $this->song->album;
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}
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} else {
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// The file is newly added.
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$artist = Artist::get($info['artist']);
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$album = Album::get($artist, $info['album'], array_get($info, 'compilation'));
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}
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if (!$album->has_cover) {
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$this->generateAlbumCover($album, array_get($info, 'cover'));
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}
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$data = array_except($info, ['artist', 'albumartist', 'album', 'cover', 'compilation']);
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$data['album_id'] = $album->id;
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$data['artist_id'] = $artist->id;
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$this->song = Song::updateOrCreate(['id' => $this->fileHash], $data);
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return self::SYNC_RESULT_SUCCESS;
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}
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/**
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* Try to generate a cover for an album based on extracted data, or use the cover file under the directory.
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*
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* @param mixed[]|null $coverData
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*/
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private function generateAlbumCover(Album $album, ?array $coverData): void
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{
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// If the album has no cover, we try to get the cover image from existing tag data
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if ($coverData) {
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$extension = explode('/', $coverData['image_mime']);
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$extension = empty($extension[1]) ? 'png' : $extension[1];
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$this->mediaMetadataService->writeAlbumCover($album, $coverData['data'], $extension);
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return;
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}
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// Or, if there's a cover image under the same directory, use it.
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if ($cover = $this->getCoverFileUnderSameDirectory()) {
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$this->mediaMetadataService->copyAlbumCover($album, $cover);
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}
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}
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/**
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* Issue #380.
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* Some albums have its own cover image under the same directory as cover|folder.jpg/png.
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* We'll check if such a cover file is found, and use it if positive.
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*
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* @throws InvalidArgumentException
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*/
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private function getCoverFileUnderSameDirectory(): ?string
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{
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// As directory scanning can be expensive, we cache and reuse the result.
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return $this->cache->remember(md5($this->filePath.'_cover'), 24 * 60, function (): ?string {
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$matches = array_keys(iterator_to_array(
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$this->finder->create()
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->depth(0)
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->ignoreUnreadableDirs()
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->files()
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->followLinks()
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->name('/(cov|fold)er\.(jpe?g|png)$/i')
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->in(dirname($this->filePath))
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)
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);
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$cover = $matches ? $matches[0] : null;
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return $cover && $this->isImage($cover) ? $cover : null;
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});
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}
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private function isImage(string $path): bool
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{
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try {
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return (bool) exif_imagetype($path);
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} catch (Exception $e) {
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return false;
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}
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}
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/**
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* Determine if the file is new (its Song record can't be found in the database).
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*/
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public function isFileNew(): bool
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{
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return !$this->song;
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}
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/**
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* Determine if the file is changed (its Song record is found, but the timestamp is different).
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*/
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public function isFileChanged(): bool
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{
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return !$this->isFileNew() && $this->song->mtime !== $this->fileModifiedTime;
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}
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public function isFileNewOrChanged(): bool
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{
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return $this->isFileNew() || $this->isFileChanged();
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}
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public function getSyncError(): ?string
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{
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return $this->syncError;
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}
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private function getTrackNumberFromInfo(array $info): int
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{
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$track = 0;
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// Apparently track numbers can be stored with different indices as the following.
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$trackIndices = [
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'comments.track',
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'comments.tracknumber',
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'comments.track_number',
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];
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for ($i = 0; $i < count($trackIndices) && $track === 0; $i++) {
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$track = (int) array_get($info, $trackIndices[$i], [0])[0];
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}
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return $track;
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}
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private function gatherPropsFromTags(array $info, array $comments, array &$props): void
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{
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$propertyMap = [
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'artist' => 'artist',
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'albumartist' => 'band',
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'album' => 'album',
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'title' => 'title',
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'lyrics' => ['unsychronised_lyric', 'unsynchronised_lyric'],
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'compilation' => 'part_of_a_compilation',
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];
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foreach ($propertyMap as $name => $tags) {
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foreach ((array) $tags as $tag) {
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$value = array_get($info, "tags.id3v2.$tag", [null])[0] ?: array_get($comments, $tag, [''])[0];
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if ($value) {
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$props[$name] = $value;
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}
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}
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// Fixes #323, where tag names can be htmlentities()'ed
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if (is_string($props[$name]) && $props[$name]) {
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$props[$name] = trim(html_entity_decode($props[$name]));
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}
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}
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}
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private function isCompilation(array $props): bool
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{
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// A "compilation" property can be determined by:
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// - "part_of_a_compilation" tag (used by iTunes), or
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// - "albumartist" (used by non-retarded applications).
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// Also, the latter is only valid if the value is NOT the same as "artist".
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return $props['albumartist'] && $props['artist'] !== $props['albumartist'];
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}
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}
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