private void EnsureCentralDirectoryHeader()
{
if (this.header != null)
{
return;
}
this.header = new CentralDirectoryHeader();
}
internal ZipArchiveEntry(ZipArchive archive, CentralDirectoryHeader header)
{
this.Archive = archive;
this.header = header;
this.settings = ZipHelper.GetCompressionSettings((CompressionMethod)this.header.CompressionMethod, this.Archive.CompressionSettings);
this.settings.PrepareForZip((CentralDirectoryHeader)null);
this.existedInArchive = true;
}
private void ReadCentralDirectory()
{
this.Reader.BaseStream.Seek(this.CentralDirectoryStart, SeekOrigin.Begin);
for (ulong index = 0; index < this.NumberOfEntriesInTheCentralDirectory; ++index)
{
CentralDirectoryHeader header = new CentralDirectoryHeader();
if (!header.TryReadBlock(this.archiveReader))
{
throw new InvalidDataException("Central directory header is broken.");
}
ZipArchiveEntry zipArchiveEntry = new ZipArchiveEntry(this, header);
this.entries.Add(zipArchiveEntry.FullName, zipArchiveEntry);
}
}
internal ZipArchiveEntry(ZipArchive archive, string entryName)
{
this.Archive = archive;
this.settings = this.Archive.CompressionSettings;
this.header = new CentralDirectoryHeader();
this.header.VersionNeededToExtract = (ushort)10;
this.header.GeneralPurposeBitFlag = (ushort)8;
if (this.Archive.EncryptionSettings is DefaultEncryptionSettings)
{
this.header.GeneralPurposeBitFlag |= (ushort)1;
this.ValidateVersionNeeded(VersionNeededToExtract.Deflate);
}
this.FullName = entryName;
this.LastWriteTime = DateTimeOffset.Now;
}
internal virtual void PrepareForZip(CentralDirectoryHeader header = null)
{
}