完善开发环境工具、音乐服务和界面性能
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@@ -24,12 +24,17 @@ public sealed class KugouMusicProvider : IMusicProvider, IDisposable
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};
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private static readonly (MusicPlaybackQuality Quality, string Value, int Bitrate)[] QualityOrder =
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[
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(MusicPlaybackQuality.Master, "super", 1000),
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(MusicPlaybackQuality.Master, "viper_tape", 1000),
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(MusicPlaybackQuality.HiRes, "high", 900),
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(MusicPlaybackQuality.Lossless, "flac", 800),
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(MusicPlaybackQuality.High, "320", 320),
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(MusicPlaybackQuality.Standard, "128", 128)
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];
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private static readonly string[] KugouPlaybackQualities =
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[
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"128", "320", "flac", "high", "multitrack", "viper_atmos",
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"viper_tape", "viper_clear", "super"
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];
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private readonly IMusicCredentialStore _credentials;
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private readonly HttpClient _publicClient;
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@@ -348,10 +353,11 @@ public sealed class KugouMusicProvider : IMusicProvider, IDisposable
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var identity = SplitSongId(songId);
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var start = global::System.Array.FindIndex(QualityOrder, item => item.Quality == quality);
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if (start < 0) start = QualityOrder.Length - 1;
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var metadata = SongDataFor(songId);
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var candidates = await GetPlaybackCandidatesAsync(identity, metadata, start, cancellationToken).ConfigureAwait(false);
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string? lastReason = null;
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for (var index = start; index < QualityOrder.Length; index++)
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foreach (var candidate in candidates)
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{
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var candidate = QualityOrder[index];
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try
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{
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var response = await _api.SendAndroidAsync(
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@@ -361,12 +367,12 @@ public sealed class KugouMusicProvider : IMusicProvider, IDisposable
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{
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["album_id"] = identity.AlbumId,
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["area_code"] = "1",
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["hash"] = identity.Hash.ToLowerInvariant(),
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["hash"] = candidate.Hash.ToLowerInvariant(),
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["ssa_flag"] = "is_fromtrack",
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["version"] = "11430",
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["page_id"] = "151369488",
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["quality"] = candidate.Value,
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["album_audio_id"] = SongDataFor(songId)?.MixSongId.ToString(CultureInfo.InvariantCulture) ?? "0",
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["album_audio_id"] = metadata?.MixSongId.ToString(CultureInfo.InvariantCulture) ?? "0",
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["behavior"] = "play",
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["pid"] = "2",
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["cmd"] = "26",
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@@ -382,14 +388,20 @@ public sealed class KugouMusicProvider : IMusicProvider, IDisposable
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"trackercdn.kugou.com",
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cancellationToken,
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addTrackKey: true).ConfigureAwait(false);
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var data = response.Json["data"] ?? response.Json;
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if (data is JsonArray array) data = array.FirstOrDefault();
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var address = KugouApiClient.Text(data, "url") ?? KugouApiClient.Text(data, "play_url") ?? FirstText(data, "backup_url");
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if (Uri.TryCreate(address, UriKind.Absolute, out var streamUri) && streamUri.Scheme == Uri.UriSchemeHttps)
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foreach (var data in PlaybackResponseNodes(response.Json))
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{
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var bitrate = KugouApiClient.Integer(data, "bitRate");
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var extension = KugouApiClient.Text(data, "extName") ?? KugouApiClient.Text(data, "ext_name");
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if (string.Equals(extension, "mp4", StringComparison.OrdinalIgnoreCase))
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{
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lastReason = "当前音质返回了视频容器，已尝试较低音质。";
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continue;
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}
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if (!TryGetHttpsPlaybackUri(data, out var streamUri)) continue;
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var bitrate = FirstInteger(data, "bitRate", "bitrate", "bit_rate");
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if (bitrate <= 0) bitrate = candidate.Bitrate;
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var trial = KugouApiClient.Integer(data, "is_free_part") == 1;
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var trial = FirstInteger(data, "is_free_part", "isFreePart") == 1;
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return new MusicStreamResult(
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streamUri,
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true,
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@@ -398,7 +410,10 @@ public sealed class KugouMusicProvider : IMusicProvider, IDisposable
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bitrate * 1000L,
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trial ? "提供方仅允许试听片段。" : candidate.Quality == quality ? null : $"已回退到 {candidate.Quality} 音质。");
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}
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lastReason = KugouApiClient.Text(data, "error") ?? KugouApiClient.Text(response.Json, "error") ?? "提供方未返回可播放地址。";
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lastReason = KugouApiClient.Text(response.Json, "error") ??
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KugouApiClient.Text(response.Json, "msg") ??
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lastReason ??
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"提供方未返回可用的 HTTPS 播放地址。";
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}
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catch (KugouApiException exception) when (!exception.AuthenticationFailure)
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{
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@@ -409,6 +424,128 @@ public sealed class KugouMusicProvider : IMusicProvider, IDisposable
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lastReason ?? "提供方未返回播放地址，歌曲可能需要登录、会员或受地区限制。");
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}
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private async Task<IReadOnlyList<KugouPlaybackCandidate>> GetPlaybackCandidatesAsync(
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(string Hash, string AlbumId) identity,
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KugouSongData? metadata,
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int start,
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CancellationToken cancellationToken)
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{
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var fallback = QualityOrder.Skip(start).ToArray();
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var variants = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
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try
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{
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var response = await _api.SendAndroidAsync(
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HttpMethod.Post,
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"/v2/get_res_privilege/lite",
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null,
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new JsonObject
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{
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["appid"] = KugouApiClient.AppId,
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["area_code"] = 1,
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["behavior"] = "play",
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["clientver"] = KugouApiClient.ClientVersion,
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["need_hash_offset"] = 1,
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["relate"] = 1,
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["support_verify"] = 1,
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["resource"] = new JsonArray
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{
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new JsonObject
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{
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["type"] = "audio",
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["page_id"] = 0,
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["hash"] = identity.Hash,
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["album_id"] = metadata?.AlbumId ?? ParseLong(identity.AlbumId, defaultValue: 0)
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}
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},
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["qualities"] = new JsonArray(KugouPlaybackQualities
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.Select(value => (JsonNode?)JsonValue.Create(value))
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.ToArray())
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},
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_account,
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"media.store.kugou.com",
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cancellationToken).ConfigureAwait(false);
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foreach (var item in KugouApiClient.Array(response.Json["data"]))
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{
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AddPlaybackVariant(item, variants);
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foreach (var related in KugouApiClient.Array(item?["relate_goods"]))
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{
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AddPlaybackVariant(related, variants);
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}
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}
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}
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catch (KugouApiException exception) when (!exception.AuthenticationFailure)
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{
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// The URL endpoint can still resolve free or standard variants when the
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// privilege service is temporarily unavailable.
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}
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var resolved = fallback
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.Where(item => variants.ContainsKey(item.Value))
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.Select(item => new KugouPlaybackCandidate(item.Quality, item.Value, variants[item.Value], item.Bitrate))
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.ToArray();
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return resolved.Length > 0
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? resolved
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: fallback.Select(item => new KugouPlaybackCandidate(item.Quality, item.Value, identity.Hash, item.Bitrate)).ToArray();
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}
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private static void AddPlaybackVariant(JsonNode? node, IDictionary<string, string> variants)
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{
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if (node is not JsonObject item) return;
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if (item.ContainsKey("level") && KugouApiClient.Integer(item, "level") == 0) return;
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var quality = KugouApiClient.Text(item, "quality");
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var hash = KugouApiClient.Text(item, "hash");
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if (string.IsNullOrWhiteSpace(quality) || string.IsNullOrWhiteSpace(hash)) return;
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variants.TryAdd(quality, hash);
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}
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private static IEnumerable<JsonNode> PlaybackResponseNodes(JsonObject response)
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{
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yield return response;
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if (response["data"] is JsonObject data)
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{
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yield return data;
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}
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else if (response["data"] is JsonArray array)
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{
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foreach (var item in array.Where(item => item is not null)) yield return item!;
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}
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}
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private static bool TryGetHttpsPlaybackUri(JsonNode? node, out Uri? result)
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{
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foreach (var property in new[] { "url", "play_url", "backup_url", "backupurl" })
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{
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foreach (var address in TextValues(node?[property]))
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{
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if (Uri.TryCreate(address, UriKind.Absolute, out var uri) && uri.Scheme == Uri.UriSchemeHttps)
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{
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result = uri;
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return true;
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}
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}
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}
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result = null;
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return false;
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}
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private static IEnumerable<string> TextValues(JsonNode? node)
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{
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if (node is JsonValue value && value.TryGetValue<string>(out var valueText) && !string.IsNullOrWhiteSpace(valueText))
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{
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yield return valueText;
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yield break;
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}
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if (node is not JsonArray array) yield break;
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foreach (var item in array)
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{
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foreach (var itemText in TextValues(item)) yield return itemText;
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}
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}
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private static int FirstInteger(JsonNode? node, params string[] properties)
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=> properties.Select(property => KugouApiClient.Integer(node, property)).FirstOrDefault(value => value != 0);
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public async Task<MusicStreamProbe> ProbeStreamAsync(Uri uri, CancellationToken cancellationToken = default)
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{
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using var request = new HttpRequestMessage(HttpMethod.Get, uri);
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@@ -1189,5 +1326,7 @@ public sealed class KugouMusicProvider : IMusicProvider, IDisposable
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private sealed record KugouSongData(string Hash, long AlbumId, long MixSongId, long FileId);
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private sealed record KugouPlaybackCandidate(MusicPlaybackQuality Quality, string Value, string Hash, int Bitrate);
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private sealed record KugouPlaylistData(string CollectionId, long LocalListId, long SourceListId, long OwnerUserId, bool Owned);
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}
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