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using LibHac.Common;
using LibHac.Fs;
using LibHac.Fs.Fsa;
using LibHac.FsSystem;
using LibHac.Tools.Fs;
using LibHac.Tools.FsSystem;
using LibHac.Tools.FsSystem.NcaUtils;
using Ryujinx.Common.Configuration;
using Ryujinx.Common.Logging;
using Ryujinx.Common.Utilities;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
namespace Ryujinx.HLE.Loaders.Processes.Extensions
{
public static class PartitionFileSystemExtensions
{
private static readonly DownloadableContentJsonSerializerContext _contentSerializerContext = new(JsonHelper.GetDefaultSerializerOptions());
private static readonly TitleUpdateMetadataJsonSerializerContext _titleSerializerContext = new(JsonHelper.GetDefaultSerializerOptions());
internal static (bool, ProcessResult) TryLoad(this PartitionFileSystem partitionFileSystem, Switch device, string path, out string errorMessage)
{
errorMessage = null;
// Load required NCAs.
Nca mainNca = null;
Nca patchNca = null;
Nca controlNca = null;
try
{
device.Configuration.VirtualFileSystem.ImportTickets(partitionFileSystem);
// TODO: To support multi-games container, this should use CNMT NCA instead.
foreach (DirectoryEntryEx fileEntry in partitionFileSystem.EnumerateEntries("/", "*.nca"))
{
Nca nca = partitionFileSystem.GetNca(device, fileEntry.FullPath);
if (nca.GetProgramIndex() != device.Configuration.UserChannelPersistence.Index)
{
continue;
}
if (nca.IsPatch())
{
patchNca = nca;
}
else if (nca.IsProgram())
{
mainNca = nca;
}
else if (nca.IsControl())
{
controlNca = nca;
}
}
ProcessLoaderHelper.RegisterProgramMapInfo(device, partitionFileSystem).ThrowIfFailure();
}
catch (Exception ex)
{
errorMessage = $"Unable to load: {ex.Message}";
return (false, ProcessResult.Failed);
}
if (mainNca != null)
{
if (mainNca.Header.ContentType != NcaContentType.Program)
{
errorMessage = "Selected NCA file is not a \"Program\" NCA";
return (false, ProcessResult.Failed);
}
// Load Update NCAs.
Nca updatePatchNca = null;
Nca updateControlNca = null;
if (ulong.TryParse(mainNca.Header.TitleId.ToString("x16"), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out ulong titleIdBase))
{
// Clear the program index part.
titleIdBase &= ~0xFUL;
// Load update information if exists.
string titleUpdateMetadataPath = System.IO.Path.Combine(AppDataManager.GamesDirPath, titleIdBase.ToString("x16"), "updates.json");
if (File.Exists(titleUpdateMetadataPath))
{
string updatePath = JsonHelper.DeserializeFromFile(titleUpdateMetadataPath, _titleSerializerContext.TitleUpdateMetadata).Selected;
if (File.Exists(updatePath))
{
PartitionFileSystem updatePartitionFileSystem = new(new FileStream(updatePath, FileMode.Open, FileAccess.Read).AsStorage());
device.Configuration.VirtualFileSystem.ImportTickets(updatePartitionFileSystem);
// TODO: This should use CNMT NCA instead.
foreach (DirectoryEntryEx fileEntry in updatePartitionFileSystem.EnumerateEntries("/", "*.nca"))
{
Nca nca = updatePartitionFileSystem.GetNca(device, fileEntry.FullPath);
if (nca.GetProgramIndex() != device.Configuration.UserChannelPersistence.Index)
{
continue;
}
if ($"{nca.Header.TitleId.ToString("x16")[..^3]}000" != titleIdBase.ToString("x16"))
{
break;
}
if (nca.IsProgram())
{
updatePatchNca = nca;
}
else if (nca.IsControl())
{
updateControlNca = nca;
}
}
}
}
}
if (updatePatchNca != null)
{
patchNca = updatePatchNca;
}
if (updateControlNca != null)
{
controlNca = updateControlNca;
}
// Load contained DownloadableContents.
// TODO: If we want to support multi-processes in future, we shouldn't clear AddOnContent data here.
device.Configuration.ContentManager.ClearAocData();
device.Configuration.ContentManager.AddAocData(partitionFileSystem, path, mainNca.Header.TitleId, device.Configuration.FsIntegrityCheckLevel);
// Load DownloadableContents.
string addOnContentMetadataPath = System.IO.Path.Combine(AppDataManager.GamesDirPath, mainNca.Header.TitleId.ToString("x16"), "dlc.json");
if (File.Exists(addOnContentMetadataPath))
{
List<DownloadableContentContainer> dlcContainerList = JsonHelper.DeserializeFromFile(addOnContentMetadataPath, _contentSerializerContext.ListDownloadableContentContainer);
foreach (DownloadableContentContainer downloadableContentContainer in dlcContainerList)
{
foreach (DownloadableContentNca downloadableContentNca in downloadableContentContainer.DownloadableContentNcaList)
{
if (File.Exists(downloadableContentContainer.ContainerPath) && downloadableContentNca.Enabled)
{
device.Configuration.ContentManager.AddAocItem(downloadableContentNca.TitleId, downloadableContentContainer.ContainerPath, downloadableContentNca.FullPath);
}
else
{
Logger.Warning?.Print(LogClass.Application, $"Cannot find AddOnContent file {downloadableContentContainer.ContainerPath}. It may have been moved or renamed.");
}
}
}
}
return (true, mainNca.Load(device, patchNca, controlNca));
}
errorMessage = "Unable to load: Could not find Main NCA";
return (false, ProcessResult.Failed);
}
public static Nca GetNca(this IFileSystem fileSystem, Switch device, string path)
{
using var ncaFile = new UniqueRef<IFile>();
fileSystem.OpenFile(ref ncaFile.Ref, path.ToU8Span(), OpenMode.Read).ThrowIfFailure();
return new Nca(device.Configuration.VirtualFileSystem.KeySet, ncaFile.Release().AsStorage());
}
}
}
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