internal static ZipFile Read(string zipfilename, bool TurnOnDebug)
{
ZipFile zf = new ZipFile();
zf._Debug = TurnOnDebug;
zf._name = zipfilename;
zf._entries = new System.Collections.Generic.List <ZipEntry>();
ZipEntry e;
while ((e = ZipEntry.Read(zf.ReadStream, zf._Debug)) != null)
{
if (zf._Debug)
{
System.Console.WriteLine(" ZipFile::Read(): ZipEntry: {0}", e.FileName);
}
zf._entries.Add(e);
}
// read the zipfile's central directory structure here.
zf._direntries = new System.Collections.Generic.List <ZipDirEntry>();
ZipDirEntry de;
while ((de = ZipDirEntry.Read(zf.ReadStream, zf._Debug)) != null)
{
if (zf._Debug)
{
System.Console.WriteLine(" ZipFile::Read(): ZipDirEntry: {0}", de.FileName);
}
zf._direntries.Add(de);
}
return(zf);
}
internal static ZipDirEntry Read(System.IO.Stream s, bool TurnOnDebug)
{
int signature = TomShane.Neoforce.External.Zip.Shared.ReadSignature(s);
// return null if this is not a local file header signature
if (SignatureIsNotValid(signature))
{
s.Seek(-4, System.IO.SeekOrigin.Current);
if (TurnOnDebug)
{
System.Console.WriteLine(" ZipDirEntry::Read(): Bad signature ({0:X8}) at position {1}", signature, s.Position);
}
return(null);
}
byte[] block = new byte[42];
int n = s.Read(block, 0, block.Length);
if (n != block.Length)
{
return(null);
}
int i = 0;
ZipDirEntry zde = new ZipDirEntry();
zde._Debug = TurnOnDebug;
zde._VersionMadeBy = (short)(block[i++] + block[i++] * 256);
zde._VersionNeeded = (short)(block[i++] + block[i++] * 256);
zde._BitField = (short)(block[i++] + block[i++] * 256);
zde._CompressionMethod = (short)(block[i++] + block[i++] * 256);
zde._LastModDateTime = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde._Crc32 = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde._CompressedSize = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde._UncompressedSize = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde._LastModified = TomShane.Neoforce.External.Zip.Shared.PackedToDateTime(zde._LastModDateTime);
Int16 filenameLength = (short)(block[i++] + block[i++] * 256);
Int16 extraFieldLength = (short)(block[i++] + block[i++] * 256);
Int16 commentLength = (short)(block[i++] + block[i++] * 256);
Int16 diskNumber = (short)(block[i++] + block[i++] * 256);
Int16 internalFileAttrs = (short)(block[i++] + block[i++] * 256);
Int32 externalFileAttrs = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
Int32 Offset = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
block = new byte[filenameLength];
n = s.Read(block, 0, block.Length);
zde._FileName = TomShane.Neoforce.External.Zip.Shared.StringFromBuffer(block, 0, block.Length);
zde._Extra = new byte[extraFieldLength];
n = s.Read(zde._Extra, 0, zde._Extra.Length);
block = new byte[commentLength];
n = s.Read(block, 0, block.Length);
zde._Comment = TomShane.Neoforce.External.Zip.Shared.StringFromBuffer(block, 0, block.Length);
return(zde);
}
/// <summary>
/// Opens a stream for reading the specified asset contained inside the archive.
/// </summary>
/// <param name="assetName">Name of the asset to read.</param>
/// <returns>Returns the opened stream.</returns>
protected override Stream OpenStream(string assetName)
{
if (useArchive && archive != null)
{
assetName = assetName.Replace("\\", "/");
if (assetName.StartsWith("/")) assetName = assetName.Remove(0, 1);
string fullAssetName = (assetName + ".xnb").ToLower();
foreach (ZipEntry entry in archive)
{
ZipDirEntry ze = new ZipDirEntry(entry);
string entryName = entry.FileName.ToLower();
if (entryName == fullAssetName)
{
return entry.GetStream();
}
}
throw new Exception("Cannot find asset \"" + assetName + "\" in the archive.");
}
else
{
return base.OpenStream(assetName);
}
}
internal static ZipDirEntry Read(System.IO.Stream s, bool TurnOnDebug)
{
int signature = TomShane.Neoforce.External.Zip.Shared.ReadSignature(s);
// return null if this is not a local file header signature
if (SignatureIsNotValid(signature))
{
s.Seek(-4, System.IO.SeekOrigin.Current);
if (TurnOnDebug) System.Console.WriteLine(" ZipDirEntry::Read(): Bad signature ({0:X8}) at position {1}", signature, s.Position);
return null;
}
byte[] block = new byte[42];
int n = s.Read(block, 0, block.Length);
if (n != block.Length) return null;
int i = 0;
ZipDirEntry zde = new ZipDirEntry();
zde._Debug = TurnOnDebug;
zde._VersionMadeBy = (short)(block[i++] + block[i++] * 256);
zde._VersionNeeded = (short)(block[i++] + block[i++] * 256);
zde._BitField = (short)(block[i++] + block[i++] * 256);
zde._CompressionMethod = (short)(block[i++] + block[i++] * 256);
zde._LastModDateTime = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde._Crc32 = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde._CompressedSize = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde._UncompressedSize = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde._LastModified = TomShane.Neoforce.External.Zip.Shared.PackedToDateTime(zde._LastModDateTime);
Int16 filenameLength = (short)(block[i++] + block[i++] * 256);
Int16 extraFieldLength = (short)(block[i++] + block[i++] * 256);
Int16 commentLength = (short)(block[i++] + block[i++] * 256);
Int16 diskNumber = (short)(block[i++] + block[i++] * 256);
Int16 internalFileAttrs = (short)(block[i++] + block[i++] * 256);
Int32 externalFileAttrs = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
Int32 Offset = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
block = new byte[filenameLength];
n = s.Read(block, 0, block.Length);
zde._FileName = TomShane.Neoforce.External.Zip.Shared.StringFromBuffer(block, 0, block.Length);
zde._Extra = new byte[extraFieldLength];
n = s.Read(zde._Extra, 0, zde._Extra.Length);
block = new byte[commentLength];
n = s.Read(block, 0, block.Length);
zde._Comment = TomShane.Neoforce.External.Zip.Shared.StringFromBuffer(block, 0, block.Length);
return zde;
}
internal static ZipDirEntry Read(Stream s, bool TurnOnDebug)
{
var signature = Shared.ReadSignature(s);
// return null if this is not a local file header signature
if (SignatureIsNotValid(signature))
{
s.Seek(-4, SeekOrigin.Current);
if (TurnOnDebug)
{
Console.WriteLine(" ZipDirEntry::Read(): Bad signature ({0:X8}) at position {1}", signature,
s.Position);
}
return(null);
}
var block = new byte[42];
var n = s.Read(block, 0, block.Length);
if (n != block.Length)
{
return(null);
}
var i = 0;
var zde = new ZipDirEntry();
zde._Debug = TurnOnDebug;
zde.VersionMadeBy = (short)(block[i++] + block[i++] * 256);
zde.VersionNeeded = (short)(block[i++] + block[i++] * 256);
zde._BitField = (short)(block[i++] + block[i++] * 256);
zde.CompressionMethod = (short)(block[i++] + block[i++] * 256);
zde._LastModDateTime = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde._Crc32 = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde.CompressedSize = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde.UncompressedSize = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
zde.LastModified = Shared.PackedToDateTime(zde._LastModDateTime);
var filenameLength = (short)(block[i++] + block[i++] * 256);
var extraFieldLength = (short)(block[i++] + block[i++] * 256);
var commentLength = (short)(block[i++] + block[i++] * 256);
var diskNumber = (short)(block[i++] + block[i++] * 256);
var internalFileAttrs = (short)(block[i++] + block[i++] * 256);
var externalFileAttrs = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 +
block[i++] * 256 * 256 * 256;
var Offset = block[i++] + block[i++] * 256 + block[i++] * 256 * 256 + block[i++] * 256 * 256 * 256;
block = new byte[filenameLength];
n = s.Read(block, 0, block.Length);
zde.FileName = Shared.StringFromBuffer(block, 0, block.Length);
zde._Extra = new byte[extraFieldLength];
n = s.Read(zde._Extra, 0, zde._Extra.Length);
block = new byte[commentLength];
n = s.Read(block, 0, block.Length);
zde.Comment = Shared.StringFromBuffer(block, 0, block.Length);
return(zde);
}
