(ZIP): switched to #ZipLib because Net library does not support encrypted archives.

This commit is contained in:
morkt
2018-01-29 03:49:43 +04:00
parent b4e1e41c93
commit f402d8272c
4 changed files with 65 additions and 19 deletions

View File

@@ -32,34 +32,37 @@ using System.Linq;
using System.Text;
using GameRes.Formats.Strings;
using SharpZip = ICSharpCode.SharpZipLib.Zip;
namespace GameRes.Formats.PkWare
{
internal class ZipEntry : PackedEntry
{
public readonly ZipArchiveEntry NativeEntry;
public readonly SharpZip.ZipEntry NativeEntry;
public ZipEntry (ZipArchiveEntry zip_entry)
public ZipEntry (SharpZip.ZipEntry zip_entry)
{
NativeEntry = zip_entry;
Name = zip_entry.FullName;
Type = FormatCatalog.Instance.GetTypeFromName (zip_entry.FullName);
Name = zip_entry.Name;
Type = FormatCatalog.Instance.GetTypeFromName (zip_entry.Name);
IsPacked = true;
// design decision of having 32bit entry sizes was made early during GameRes
// library development. nevertheless, large files will be extracted correctly
// despite the fact that size is reported as uint.MaxValue, because extraction is
// performed by .Net framework based on real size value.
Size = (uint)Math.Min (zip_entry.CompressedLength, uint.MaxValue);
UnpackedSize = (uint)Math.Min (zip_entry.Length, uint.MaxValue);
// offset is unknown and reported as '0' for all files.
Offset = 0;
Size = (uint)Math.Min (zip_entry.CompressedSize, uint.MaxValue);
UnpackedSize = (uint)Math.Min (zip_entry.Size, uint.MaxValue);
Offset = zip_entry.Offset;
}
}
internal class PkZipArchive : ArcFile
{
readonly ZipArchive m_zip;
readonly SharpZip.ZipFile m_zip;
public PkZipArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, ZipArchive native)
public SharpZip.ZipFile Native { get { return m_zip; } }
public PkZipArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, SharpZip.ZipFile native)
: base (arc, impl, dir)
{
m_zip = native;
@@ -72,7 +75,7 @@ namespace GameRes.Formats.PkWare
if (!_zip_disposed)
{
if (disposing)
m_zip.Dispose();
m_zip.Close();
_zip_disposed = true;
}
base.Dispose (disposing);
@@ -109,23 +112,29 @@ namespace GameRes.Formats.PkWare
internal ArcFile OpenZipArchive (ArcView file, Stream input)
{
var zip = new ZipArchive (input, ZipArchiveMode.Read, false, Encodings.cp932);
SharpZip.ZipConstants.DefaultCodePage = Properties.Settings.Default.ZIPEncodingCP;
var zip = new SharpZip.ZipFile (input);
try
{
var dir = zip.Entries.Where (z => !z.FullName.EndsWith ("/"))
.Select (z => new ZipEntry (z) as Entry).ToList();
var files = zip.Cast<SharpZip.ZipEntry>().Where (z => !z.IsDirectory);
bool has_encrypted = files.Any (z => z.IsCrypted);
if (has_encrypted)
zip.Password = QueryPassword (file);
var dir = files.Select (z => new ZipEntry (z) as Entry).ToList();
return new PkZipArchive (file, this, dir, zip);
}
catch
{
zip.Dispose();
zip.Close();
throw;
}
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
return ((ZipEntry)entry).NativeEntry.Open();
var zarc = (PkZipArchive)arc;
var zent = (ZipEntry)entry;
return zarc.Native.GetInputStream (zent.NativeEntry);
}
/// <summary>
@@ -156,6 +165,11 @@ namespace GameRes.Formats.PkWare
}
}
string QueryPassword (ArcView file)
{
return ""; // TODO
}
public override ResourceOptions GetDefaultOptions ()
{
Encoding enc;