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Add more to OpenFileSystem

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Alex Barney 2019-11-04 16:01:14 -07:00
parent a1eca88378
commit c79053eac3
1 changed files with 90 additions and 1 deletions
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91
src/LibHac/FsService/FileSystemProxyCore.cs
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@ -4,6 +4,7 @@ using LibHac.Fs;
using LibHac.Fs.Shim;
using LibHac.FsSystem;
using LibHac.FsService.Creators;
using LibHac.FsSystem.NcaUtils;
using LibHac.Ncm;
using LibHac.Spl;
using RightsId = LibHac.Fs.RightsId;
@ -36,7 +37,8 @@ namespace LibHac.FsService
{
fileSystem = default;
U8Span path2 = path;
// Get a reference to the path that will be advanced as each part of the path is parsed
U8Span path2 = path.Slice(0, StringUtils.GetLength(path));
Result rc = OpenFileSystemFromMountName(ref path2, out IFileSystem baseFileSystem, out bool successQQ,
out MountNameInfo mountNameInfo);
@ -57,6 +59,44 @@ namespace LibHac.FsService
return rc;
}
rc = IsContentPathDir(ref path2, out bool isDirectory);
if (rc.IsFailure()) return rc;
if (isDirectory)
{
throw new NotImplementedException();
}
rc = TryOpenNsp(ref path2, out IFileSystem nspFileSystem, baseFileSystem);
if (rc.IsSuccess())
{
if (path2.Length == 0 || path[0] == 0)
{
if (type == FileSystemProxyType.Package)
{
fileSystem = nspFileSystem;
return Result.Success;
}
return ResultFs.InvalidArgument.Log();
}
baseFileSystem = nspFileSystem;
}
if (!mountNameInfo.Field9)
{
return ResultFs.InvalidNcaMountPoint.Log();
}
TitleId openTitleId = mountNameInfo.IsHostFs ? new TitleId(ulong.MaxValue) : titleId;
rc = TryOpenNca(ref path2, out Nca nca, baseFileSystem, openTitleId);
if (rc.IsFailure()) return rc;
throw new NotImplementedException();
}
@ -191,6 +231,55 @@ namespace LibHac.FsService
return Result.Success;
}
private Result IsContentPathDir(ref U8Span path, out bool isDirectory)
{
isDirectory = default;
ReadOnlySpan<byte> mountSeparator = new[] { (byte)':', (byte)'/' };
if (StringUtils.Compare(mountSeparator, path, mountSeparator.Length) != 0)
{
return ResultFs.PathNotFound.Log();
}
path = path.Slice(1);
int pathLen = StringUtils.GetLength(path);
if (path[pathLen - 1] == '/')
{
isDirectory = true;
return Result.Success;
}
// Now make sure the path has a content file extension
if (pathLen < 5)
return ResultFs.PathNotFound.Log();
ReadOnlySpan<byte> fileExtension = path.Value.Slice(pathLen - 4);
ReadOnlySpan<byte> ncaExtension = new[] { (byte)'.', (byte)'n', (byte)'c', (byte)'a' };
ReadOnlySpan<byte> nspExtension = new[] { (byte)'.', (byte)'n', (byte)'s', (byte)'p' };
if (StringUtils.CompareCaseInsensitive(fileExtension, ncaExtension) == 0 ||
StringUtils.CompareCaseInsensitive(fileExtension, nspExtension) == 0)
{
isDirectory = false;
return Result.Success;
}
return ResultFs.PathNotFound.Log();
}
private Result TryOpenNsp(ref U8Span path, out IFileSystem outFileSystem, IFileSystem baseFileSystem)
{
throw new NotImplementedException();
}
private Result TryOpenNca(ref U8Span path, out Nca nca, IFileSystem baseFileSystem, TitleId titleId)
{
throw new NotImplementedException();
}
public Result OpenBisFileSystem(out IFileSystem fileSystem, string rootPath, BisPartitionId partitionId)
{
return FsCreators.BuiltInStorageFileSystemCreator.Create(out fileSystem, rootPath, partitionId);