private void AddEntry(ReadOnlyZipArchiveEntry entry)
{
_entries.Add(entry);
string entryName = entry.FullName;
if (!_entriesDictionary.ContainsKey(entryName))
{
_entriesDictionary.Add(entryName, entry);
}
}
private void Init(Stream stream, ZipArchiveMode mode, bool leaveOpen)
{
if (mode == ZipArchiveMode.Update || mode == ZipArchiveMode.Create)
{
throw new InvalidOperationException();
}
Stream extraTempStream = null;
try
{
_backingStream = null;
// check stream against mode
switch (mode)
{
case ZipArchiveMode.Read:
if (!stream.CanRead)
{
throw new ArgumentException("ReadModeCapabilities");
}
if (!stream.CanSeek)
{
_backingStream = stream;
extraTempStream = stream = new MemoryStream();
_backingStream.CopyTo(stream);
stream.Seek(0, SeekOrigin.Begin);
}
break;
default:
// still have to throw this, because stream constructor doesn't do mode argument checks
throw new ArgumentOutOfRangeException(nameof(mode));
}
_mode = mode;
_archiveStream = stream;
_archiveStreamOwner = null;
_archiveReader = new BinaryReader(_archiveStream);
_entries = new List <ReadOnlyZipArchiveEntry>();
_entriesCollection = new ReadOnlyCollection <ReadOnlyZipArchiveEntry>(_entries);
_entriesDictionary = new Dictionary <string, ReadOnlyZipArchiveEntry>();
_readEntries = false;
_leaveOpen = leaveOpen;
_centralDirectoryStart = 0; // invalid until ReadCentralDirectory
_isDisposed = false;
_numberOfThisDisk = 0; // invalid until ReadCentralDirectory
_archiveComment = null;
switch (mode)
{
case ZipArchiveMode.Read:
ReadEndOfCentralDirectory();
break;
default:
break;
}
}
catch
{
if (extraTempStream != null)
{
extraTempStream.Dispose();
}
throw;
}
}