public void ExportEntry(string name, Stream output)
{
if (this.Entries.ContainsKey(name) == false)
{
throw new KeyNotFoundException();
}
if (this.Entries[name] is StreamEntry)
{
var entry = (StreamEntry)this.Entries[name];
this.Stream.Seek(entry.Offset, SeekOrigin.Begin);
if (entry.CompressionType == Packages.PackageCompressionType.Zlib)
{
// this is a hack until I fix zlib handling
using (var memory = this.Stream.ReadToMemoryStream(entry.CompressedSize))
{
var zlib = new InflaterInputStream(memory);
output.WriteFromStream(zlib, entry.Size);
}
}
else if (entry.CompressionType == Packages.PackageCompressionType.None)
{
output.WriteFromStream(this.Stream, entry.Size);
}
else
{
throw new InvalidOperationException();
}
}
else if (this.Entries[name] is MemoryEntry)
{
MemoryEntry entry = (MemoryEntry)this.Entries[name];
output.Write(entry.Data, 0, entry.Data.Length);
}
else if (this.Entries[name] is CopyFromFileEntry)
{
CopyFromFileEntry entry = (CopyFromFileEntry)this.Entries[name];
using (var input = File.Open(entry.Path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
output.WriteFromStream(input, entry.Size);
}
}
else
{
throw new InvalidOperationException();
}
}
public void SetEntry(string name, string path)
{
if (this.IsSolid == true)
{
throw new NotSupportedException("cannot write to solid packages");
}
else if (this.Stream.CanWrite == false)
{
throw new NotSupportedException("stream is not writable");
}
if (this.Entries.ContainsKey(name) && this.Entries[name] is StreamEntry)
{
this.OriginalEntries[name] = (StreamEntry)this.Entries[name];
}
CopyFromFileEntry entry = new CopyFromFileEntry();
entry.Path = path;
entry.Size = (int)(new FileInfo(path).Length);
this.Entries[name] = entry;
}