public static PakFile?Open(FileInfo fileInfo, IVersionProvider?versionProvider = null, IAesKeyProvider?keyProvider = null)
{
if (fileInfo is null)
{
throw new ArgumentNullException(nameof(fileInfo));
}
if (!fileInfo.Exists)
{
throw new FileNotFoundException();
}
var aesProvider = keyProvider is null ? null : new AesPakCryptoProvider(keyProvider);
var fileStream = new FileStream(fileInfo.FullName, FileMode.Open, FileAccess.Read, FileShare.Read, BufferSize);
if (ReadPakInfo(fileStream, fileStream.Length, aesProvider, out var info))
{
var file = new PakFile(fileInfo.Name, fileStream.Length, fileStream, versionProvider, aesProvider);
file.Initialize(info);
return(file);
}
else
{
fileStream.Dispose();
throw new NotPakFileException();
}
}
public static PakVFS OpenAt(string path, IVersionProvider?versionProvider = null, IAesKeyProvider?keyProvider = null)
{
if (path is null)
{
throw new ArgumentNullException(nameof(path));
}
var dir = new DirectoryInfo(path);
if (!dir.Exists)
{
throw new DirectoryNotFoundException();
}
var paks = dir.GetFiles(PakExtensionPattern).Select(f => PakFile.Open(f, versionProvider, keyProvider)).OfType <PakFile>();
return(new PakVFS(paks));
}
public async static ValueTask <PakVFS> OpenAtAsync(string path, IVersionProvider?versionProvider = null, IAesKeyProvider?keyProvider = null, CancellationToken cancellationToken = default)
{
if (path is null)
{
throw new ArgumentNullException(nameof(path));
}
var dir = new DirectoryInfo(path);
if (!dir.Exists)
{
throw new DirectoryNotFoundException();
}
var files = dir.GetFiles(PakExtensionPattern);
var tasks = files.Select(f => PakFile.OpenAsync(f, versionProvider, cancellationToken: cancellationToken));
var paks = await Task.WhenAll(tasks).ConfigureAwait(false);
return(new PakVFS(paks.OfType <PakFile>()));
}
public async static Task <PakFile?> OpenAsync(FileInfo fileInfo, IVersionProvider?versionProvider = null, IAesKeyProvider?keyProvider = null, CancellationToken cancellationToken = default)
{
if (fileInfo is null)
{
throw new ArgumentNullException(nameof(fileInfo));
}
if (!fileInfo.Exists)
{
throw new FileNotFoundException();
}
var aesProvider = keyProvider is null ? null : new AesPakCryptoProvider(keyProvider);
var fileStream = new FileStream(fileInfo.FullName, FileMode.Open, FileAccess.Read, FileShare.Read, BufferSize);
if (ReadPakInfo(fileStream, fileStream.Length, aesProvider, out var info))
{
var file = new PakFile(fileInfo.Name, fileStream.Length, fileStream, versionProvider, aesProvider);
await file.InitializeAsync(info, cancellationToken).ConfigureAwait(false);
return(file);
}
return(null);
}
public PakEntry(PakFile pakFile, string fileName)
{
Owner = pakFile;
FileName = fileName;
}
