Исправление: том ./mods:/lampac/mods в compose и копии 10 модулей с enable:true; конфиг без SkipModules
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using Shared;
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using Shared.Models.Base;
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namespace Music;
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public static class MusicImageProxyService
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{
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static readonly BaseSettings init = new()
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{
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plugin = "Music"
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};
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// Create a shallow copy without listing every DTO property. The delegate is
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// bound once; new metadata fields are preserved automatically.
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static readonly Func<object, object> shallowCopy = typeof(object)
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.GetMethod("MemberwiseClone", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)
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.CreateDelegate<Func<object, object>>();
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static T Copy<T>(T value) where T : class => (T)shallowCopy(value);
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// Only rewritten image branches are copied. Reused branches stay read-only:
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// controllers serialize this result without modifying its DTOs or lists.
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public static T Apply<T>(BaseController controller, T response)
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{
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if (controller == null || response == null)
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return response;
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return (T)Rewrite(controller, response);
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}
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static object Rewrite(BaseController controller, object value)
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{
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return value switch
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{
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MusicSearchResponse response => RewriteSearch(controller, response),
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MusicHomeResponse response => RewriteHome(controller, response),
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MusicStatsTopResult response => RewriteStats(controller, response),
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MusicArtist artist => RewriteArtist(controller, artist),
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MusicAlbum album => RewriteAlbum(controller, album),
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MusicTrack track => RewriteTrack(controller, track),
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MusicBrowseSection section => RewriteSection(controller, section),
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MusicUserPlaylistSummary playlist => RewritePlaylist(controller, playlist),
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MusicUserPlaylistImportResult response => RewriteImport(controller, response),
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MusicDailyMixResponse response => RewriteDaily(controller, response),
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MusicRadioResponse response => RewriteRadio(controller, response),
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MusicRecentlyPlayedItem item => RewriteHistory(controller, item),
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MusicStatsTopTrack item => RewriteStatsTrack(controller, item),
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MusicImage image => RewriteImage(controller, image),
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List<MusicTrack> tracks => RewriteList(controller, tracks),
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List<MusicUserPlaylistSummary> playlists => RewriteList(controller, playlists),
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MusicTrack[] tracks => RewriteArray(controller, tracks),
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MusicUserPlaylistSummary[] playlists => RewriteArray(controller, playlists),
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_ => value
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};
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}
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static List<T> RewriteList<T>(BaseController controller, List<T> items) where T : class
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{
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if (items == null)
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return null;
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List<T> copy = null;
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for (int i = 0; i < items.Count; i++)
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{
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var item = (T)Rewrite(controller, items[i]);
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if (ReferenceEquals(item, items[i]))
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continue;
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copy ??= new List<T>(items);
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copy[i] = item;
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}
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return copy ?? items;
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}
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static T[] RewriteArray<T>(BaseController controller, T[] items) where T : class
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{
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T[] copy = null;
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for (int i = 0; i < items.Length; i++)
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{
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var item = (T)Rewrite(controller, items[i]);
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if (ReferenceEquals(item, items[i]))
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continue;
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copy ??= (T[])items.Clone();
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copy[i] = item;
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}
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return copy ?? items;
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}
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static MusicSearchResponse RewriteSearch(BaseController controller, MusicSearchResponse value)
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{
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var artists = RewriteList(controller, value.artists);
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var albums = RewriteList(controller, value.albums);
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var tracks = RewriteList(controller, value.tracks);
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var search_sections = RewriteList(controller, value.search_sections);
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if (ReferenceEquals(artists, value.artists)
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&& ReferenceEquals(albums, value.albums)
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&& ReferenceEquals(tracks, value.tracks)
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&& ReferenceEquals(search_sections, value.search_sections))
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return value;
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var copy = Copy(value);
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copy.artists = artists;
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copy.albums = albums;
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copy.tracks = tracks;
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copy.search_sections = search_sections;
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return copy;
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}
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static MusicHomeResponse RewriteHome(BaseController controller, MusicHomeResponse value)
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{
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var browse_sections = RewriteList(controller, value.browse_sections);
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var recently_played = RewriteList(controller, value.recently_played);
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var user_playlists = RewriteList(controller, value.user_playlists);
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if (ReferenceEquals(browse_sections, value.browse_sections)
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&& ReferenceEquals(recently_played, value.recently_played)
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&& ReferenceEquals(user_playlists, value.user_playlists))
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return value;
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var copy = Copy(value);
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copy.browse_sections = browse_sections;
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copy.recently_played = recently_played;
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copy.user_playlists = user_playlists;
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return copy;
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}
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static MusicStatsTopResult RewriteStats(BaseController controller, MusicStatsTopResult value)
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{
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var tracks = RewriteList(controller, value.tracks);
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if (ReferenceEquals(tracks, value.tracks))
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return value;
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var copy = Copy(value);
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copy.tracks = tracks;
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return copy;
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}
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static MusicArtist RewriteArtist(BaseController controller, MusicArtist value)
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{
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var images = RewriteList(controller, value.images);
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var albums = RewriteList(controller, value.albums);
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var sections = RewriteList(controller, value.sections);
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if (ReferenceEquals(images, value.images)
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&& ReferenceEquals(albums, value.albums)
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&& ReferenceEquals(sections, value.sections))
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return value;
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var copy = Copy(value);
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copy.images = images;
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copy.albums = albums;
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copy.sections = sections;
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return copy;
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}
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static MusicAlbum RewriteAlbum(BaseController controller, MusicAlbum value)
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{
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var images = RewriteList(controller, value.images);
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var tracks = RewriteList(controller, value.tracks);
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if (ReferenceEquals(images, value.images)
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&& ReferenceEquals(tracks, value.tracks))
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return value;
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var copy = Copy(value);
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copy.images = images;
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copy.tracks = tracks;
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return copy;
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}
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static MusicTrack RewriteTrack(BaseController controller, MusicTrack value)
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{
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var images = RewriteList(controller, value.images);
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if (ReferenceEquals(images, value.images))
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return value;
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var copy = Copy(value);
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copy.images = images;
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return copy;
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}
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static MusicBrowseSection RewriteSection(BaseController controller, MusicBrowseSection value)
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{
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var albums = RewriteList(controller, value.albums);
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var artists = RewriteList(controller, value.artists);
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var tracks = RewriteList(controller, value.tracks);
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if (ReferenceEquals(albums, value.albums)
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&& ReferenceEquals(artists, value.artists)
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&& ReferenceEquals(tracks, value.tracks))
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return value;
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var copy = Copy(value);
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copy.albums = albums;
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copy.artists = artists;
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copy.tracks = tracks;
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return copy;
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}
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static MusicUserPlaylistSummary RewritePlaylist(BaseController controller, MusicUserPlaylistSummary value)
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{
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var images = RewriteList(controller, value.images);
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if (ReferenceEquals(images, value.images))
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return value;
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var copy = Copy(value);
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copy.images = images;
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return copy;
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}
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static MusicUserPlaylistImportResult RewriteImport(BaseController controller, MusicUserPlaylistImportResult value)
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{
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var tracks = RewriteList(controller, value.tracks);
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if (ReferenceEquals(tracks, value.tracks))
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return value;
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var copy = Copy(value);
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copy.tracks = tracks;
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return copy;
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}
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static MusicDailyMixResponse RewriteDaily(BaseController controller, MusicDailyMixResponse value)
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{
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var tracks = RewriteList(controller, value.tracks);
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if (ReferenceEquals(tracks, value.tracks))
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return value;
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var copy = Copy(value);
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copy.tracks = tracks;
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return copy;
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}
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static MusicRadioResponse RewriteRadio(BaseController controller, MusicRadioResponse value)
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{
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var tracks = RewriteList(controller, value.tracks);
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if (ReferenceEquals(tracks, value.tracks))
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return value;
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var copy = Copy(value);
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copy.tracks = tracks;
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return copy;
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}
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static MusicRecentlyPlayedItem RewriteHistory(BaseController controller, MusicRecentlyPlayedItem value)
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{
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var track = (MusicTrack)Rewrite(controller, value.track);
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if (ReferenceEquals(track, value.track))
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return value;
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var copy = Copy(value);
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copy.track = track;
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return copy;
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}
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static MusicStatsTopTrack RewriteStatsTrack(BaseController controller, MusicStatsTopTrack value)
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{
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var track = (MusicTrack)Rewrite(controller, value.track);
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if (ReferenceEquals(track, value.track))
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return value;
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var copy = Copy(value);
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copy.track = track;
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return copy;
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}
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static MusicImage RewriteImage(BaseController controller, MusicImage image)
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{
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string url = image.url;
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if (string.IsNullOrWhiteSpace(url))
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return image;
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// Normalize even when proxying is disabled (e.g. file:// TV clients).
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if (url.StartsWith("//", StringComparison.Ordinal))
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url = "https:" + url;
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// Repair legacy cached proxy URLs without modifying the cached image.
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if (TryRewriteProxyHost(url, controller.host, out string rewritten))
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url = rewritten;
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else if (NeedProxy(url, controller.host))
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url = controller.HostImgProxy(init, url);
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if (string.Equals(url, image.url, StringComparison.Ordinal))
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return image;
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var copy = Copy(image);
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copy.url = url;
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return copy;
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}
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static bool TryRewriteProxyHost(string url, string host, out string rewritten)
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{
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rewritten = null;
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int index = url.IndexOf("/proxyimg", StringComparison.OrdinalIgnoreCase);
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if (index <= 0 || string.IsNullOrWhiteSpace(host))
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return false;
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string prefix = url.Substring(0, index);
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if (string.Equals(prefix, host, StringComparison.OrdinalIgnoreCase))
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return false;
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// префикс должен быть полноценным origin (а не куском чужого пути)
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if (!Uri.TryCreate(prefix, UriKind.Absolute, out var prefixUri) ||
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!prefixUri.Scheme.StartsWith("http", StringComparison.OrdinalIgnoreCase))
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return false;
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rewritten = host + url.Substring(index);
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return true;
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}
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static bool NeedProxy(string url, string host)
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{
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if (string.IsNullOrWhiteSpace(url))
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return false;
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if (url.StartsWith("data:", StringComparison.OrdinalIgnoreCase) ||
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url.StartsWith("blob:", StringComparison.OrdinalIgnoreCase) ||
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url.StartsWith("file:", StringComparison.OrdinalIgnoreCase))
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return false;
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if (!Uri.TryCreate(url, UriKind.Absolute, out var uri))
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return false;
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if (!uri.Scheme.StartsWith("http", StringComparison.OrdinalIgnoreCase))
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return false;
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if (!string.IsNullOrWhiteSpace(host) &&
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Uri.TryCreate(host, UriKind.Absolute, out var hostUri) &&
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string.Equals(uri.Host, hostUri.Host, StringComparison.OrdinalIgnoreCase))
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return false;
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return !url.Contains("/proxyimg", StringComparison.OrdinalIgnoreCase);
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}
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}
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