public void ZipinputStreamShouldGracefullyFailWithAESStreams()
{
string password = "******";
using (var memoryStream = new MemoryStream())
{
// Try to create a zip stream
WriteEncryptedZipToStream(memoryStream, password, 256);
// reset
memoryStream.Seek(0, SeekOrigin.Begin);
// Try to read
using (var inputStream = new ZipInputStream(memoryStream))
{
inputStream.Password = password;
var entry = inputStream.GetNextEntry();
Assert.That(entry.AESKeySize, Is.EqualTo(256), "Test entry should be AES256 encrypted.");
// CanDecompressEntry should be false.
Assert.That(inputStream.CanDecompressEntry, Is.False, "CanDecompressEntry should be false for AES encrypted entries");
// Should throw on read.
Assert.Throws <ZipException>(() => inputStream.ReadByte());
}
}
}
public void PasswordCheckingWithDateInExtraData()
{
var ms = new MemoryStream();
var checkTime = new DateTimeOffset(2010, 10, 16, 0, 3, 28, new TimeSpan(1, 0, 0));
using (ZipOutputStream zos = new ZipOutputStream(ms))
{
zos.IsStreamOwner = false;
zos.Password = "******";
var ze = new ZipEntry("uno");
ze.DateTime = new DateTime(1998, 6, 5, 4, 3, 2);
var zed = new ZipExtraData();
zed.StartNewEntry();
zed.AddData(1);
TimeSpan delta = checkTime.UtcDateTime - new DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime();
var seconds = (int)delta.TotalSeconds;
zed.AddLeInt(seconds);
zed.AddNewEntry(0x5455);
ze.ExtraData = zed.GetEntryData();
zos.PutNextEntry(ze);
zos.WriteByte(54);
}
ms.Position = 0;
using (ZipInputStream zis = new ZipInputStream(ms))
{
zis.Password = "******";
ZipEntry uno = zis.GetNextEntry();
var theByte = (byte)zis.ReadByte();
Assert.AreEqual(54, theByte);
Assert.AreEqual(-1, zis.ReadByte()); // eof
Assert.AreEqual(checkTime.DateTime, uno.DateTime);
}
}
/// <summary>
/// Reads a byte from the stream and advances the position within the stream by one byte, or returns -1 if at the end of the stream.
/// </summary>
/// <returns>
/// The unsigned byte cast to an Int32, or -1 if at the end of the stream.
/// </returns>
/// <exception cref="T:System.NotSupportedException">The stream does not support reading. </exception>
/// <exception cref="T:System.ObjectDisposedException">Methods were called after the stream was closed. </exception>
public override int ReadByte()
{
if (_position >= Length)
{
return(-1);
}
int result = _zipStream.ReadByte();
_position += result;
return(result);
}
private void ZipOk(POIFSFileSystem fs, Decryptor d)
{
ZipInputStream zin = new ZipInputStream(d.GetDataStream(fs));
while (true)
{
int pos = zin.ReadByte();
if (pos == -1)
{
break;
}
// ZipEntry entry = zin.GetNextEntry();
// if (entry == null)
// {
// break;
// }
//while (zin.available() > 0)
//{
// zin.skip(zin.available());
//}
}
}
public void PasswordCheckingWithDateInExtraData()
{
var ms = new MemoryStream();
var checkTime = new DateTime(2010, 10, 16, 0, 3, 28);
using (var zos = new ZipOutputStream(ms))
{
zos.IsStreamOwner = false;
zos.Password = "******";
var ze = new ZipEntry("uno");
ze.DateTime = new DateTime(1998, 6, 5, 4, 3, 2);
var zed = new ZipExtraData();
zed.StartNewEntry();
zed.AddData(1);
var delta = checkTime.ToUniversalTime() - new DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime();
var seconds = (int) delta.TotalSeconds;
zed.AddLeInt(seconds);
zed.AddNewEntry(0x5455);
ze.ExtraData = zed.GetEntryData();
zos.PutNextEntry(ze);
zos.WriteByte(54);
}
ms.Position = 0;
using (var zis = new ZipInputStream(ms))
{
zis.Password = "******";
var uno = zis.GetNextEntry();
var theByte = (byte) zis.ReadByte();
Assert.AreEqual(54, theByte);
Assert.AreEqual(-1, zis.ReadByte());
Assert.AreEqual(checkTime, uno.DateTime);
}
}
