public void SetData(byte[] data, int index, int count)
{
using (MemoryStream stream = new MemoryStream(data, index, count, false))
{
using (ZipHelperStream stream2 = new ZipHelperStream(stream))
{
stream2.ReadLEInt();
while (stream2.Position < stream2.Length)
{
int num = stream2.ReadLEShort();
int num2 = stream2.ReadLEShort();
if (num == 1)
{
if (num2 >= 0x18)
{
long fileTime = stream2.ReadLELong();
this._lastModificationTime = DateTime.FromFileTime(fileTime);
long num4 = stream2.ReadLELong();
this._lastAccessTime = DateTime.FromFileTime(num4);
long num5 = stream2.ReadLELong();
this._createTime = DateTime.FromFileTime(num5);
}
return;
}
stream2.Seek((long) num2, SeekOrigin.Current);
}
}
}
}
public void SetData(byte[] data, int index, int count)
{
using (MemoryStream stream = new MemoryStream(data, index, count, false))
{
using (ZipHelperStream stream2 = new ZipHelperStream(stream))
{
int num;
DateTime time;
this._flags = (Flags) ((byte) stream2.ReadByte());
if ((((byte) (this._flags & Flags.ModificationTime)) != 0) && (count >= 5))
{
num = stream2.ReadLEInt();
time = new DateTime(0x7b2, 1, 1, 0, 0, 0);
time = time.ToUniversalTime() + new TimeSpan(0, 0, 0, num, 0);
this._modificationTime = time.ToLocalTime();
}
if (((byte) (this._flags & Flags.AccessTime)) != 0)
{
num = stream2.ReadLEInt();
time = new DateTime(0x7b2, 1, 1, 0, 0, 0);
time = time.ToUniversalTime() + new TimeSpan(0, 0, 0, num, 0);
this._lastAccessTime = time.ToLocalTime();
}
if (((byte) (this._flags & Flags.CreateTime)) != 0)
{
num = stream2.ReadLEInt();
time = new DateTime(0x7b2, 1, 1, 0, 0, 0);
this._createTime = (time.ToUniversalTime() + new TimeSpan(0, 0, 0, num, 0)).ToLocalTime();
}
}
}
}
public byte[] GetData()
{
byte[] buffer;
using (MemoryStream stream = new MemoryStream())
{
using (ZipHelperStream stream2 = new ZipHelperStream(stream))
{
stream2.IsStreamOwner = false;
stream2.WriteLEInt(0);
stream2.WriteLEShort(1);
stream2.WriteLEShort(0x18);
stream2.WriteLELong(this._lastModificationTime.ToFileTime());
stream2.WriteLELong(this._lastAccessTime.ToFileTime());
stream2.WriteLELong(this._createTime.ToFileTime());
buffer = stream.ToArray();
}
}
return buffer;
}
public byte[] GetData()
{
byte[] buffer;
using (MemoryStream stream = new MemoryStream())
{
using (ZipHelperStream stream2 = new ZipHelperStream(stream))
{
TimeSpan span;
int totalSeconds;
DateTime time;
stream2.IsStreamOwner = false;
stream2.WriteByte((byte) this._flags);
if (((byte) (this._flags & Flags.ModificationTime)) != 0)
{
time = new DateTime(0x7b2, 1, 1, 0, 0, 0);
span = (TimeSpan) (this._modificationTime.ToUniversalTime() - time.ToUniversalTime());
totalSeconds = (int) span.TotalSeconds;
stream2.WriteLEInt(totalSeconds);
}
if (((byte) (this._flags & Flags.AccessTime)) != 0)
{
time = new DateTime(0x7b2, 1, 1, 0, 0, 0);
span = (TimeSpan) (this._lastAccessTime.ToUniversalTime() - time.ToUniversalTime());
totalSeconds = (int) span.TotalSeconds;
stream2.WriteLEInt(totalSeconds);
}
if (((byte) (this._flags & Flags.CreateTime)) != 0)
{
time = new DateTime(0x7b2, 1, 1, 0, 0, 0);
span = (TimeSpan) (this._createTime.ToUniversalTime() - time.ToUniversalTime());
totalSeconds = (int) span.TotalSeconds;
stream2.WriteLEInt(totalSeconds);
}
buffer = stream.ToArray();
}
}
return buffer;
}
private long LocateBlockWithSignature(int signature, long endLocation, int minimumBlockSize, int maximumVariableData)
{
using (ZipHelperStream stream = new ZipHelperStream(this.baseStream_))
{
return stream.LocateBlockWithSignature(signature, endLocation, minimumBlockSize, maximumVariableData);
}
}
public void CommitUpdate()
{
if (this.isDisposed_)
{
throw new ObjectDisposedException("ZipFile");
}
this.CheckUpdating();
try
{
this.updateIndex_.Clear();
this.updateIndex_ = null;
if (this.contentsEdited_)
{
this.RunUpdates();
}
else if (this.commentEdited_)
{
this.UpdateCommentOnly();
}
else if (this.entries_.Length == 0)
{
byte[] comment = (this.newComment_ != null) ? this.newComment_.RawComment : ZipConstants.ConvertToArray(this.comment_);
using (ZipHelperStream stream = new ZipHelperStream(this.baseStream_))
{
stream.WriteEndOfCentralDirectory(0L, 0L, 0L, comment);
}
}
}
finally
{
this.PostUpdateCleanup();
}
}
private void UpdateCommentOnly()
{
long length = this.baseStream_.Length;
ZipHelperStream stream = null;
if (this.archiveStorage_.UpdateMode == FileUpdateMode.Safe)
{
stream = new ZipHelperStream(this.archiveStorage_.MakeTemporaryCopy(this.baseStream_)) {
IsStreamOwner = true
};
this.baseStream_.Close();
this.baseStream_ = null;
}
else if (this.archiveStorage_.UpdateMode == FileUpdateMode.Direct)
{
this.baseStream_ = this.archiveStorage_.OpenForDirectUpdate(this.baseStream_);
stream = new ZipHelperStream(this.baseStream_);
}
else
{
this.baseStream_.Close();
this.baseStream_ = null;
stream = new ZipHelperStream(this.Name);
}
using (stream)
{
if (stream.LocateBlockWithSignature(0x6054b50, length, 0x16, 0xffff) < 0L)
{
throw new ZipException("Cannot find central directory");
}
stream.Position += 0x10L;
byte[] rawComment = this.newComment_.RawComment;
stream.WriteLEShort(rawComment.Length);
stream.Write(rawComment, 0, rawComment.Length);
stream.SetLength(stream.Position);
}
if (this.archiveStorage_.UpdateMode == FileUpdateMode.Safe)
{
this.Reopen(this.archiveStorage_.ConvertTemporaryToFinal());
}
else
{
this.ReadEntries();
}
}
public bool TestArchive(bool testData, TestStrategy strategy, ZipTestResultHandler resultHandler)
{
if (this.isDisposed_)
{
throw new ObjectDisposedException("ZipFile");
}
TestStatus status = new TestStatus(this);
if (resultHandler != null)
{
resultHandler(status, null);
}
HeaderTest tests = testData ? (HeaderTest.Header | HeaderTest.Extract) : HeaderTest.Header;
bool flag = true;
try
{
for (int i = 0; flag && (i < this.Count); i++)
{
if (resultHandler != null)
{
status.SetEntry(this[i]);
status.SetOperation(TestOperation.EntryHeader);
resultHandler(status, null);
}
try
{
this.TestLocalHeader(this[i], tests);
}
catch (ZipException exception)
{
status.AddError();
if (resultHandler != null)
{
resultHandler(status, string.Format("Exception during test - '{0}'", exception.Message));
}
if (strategy == TestStrategy.FindFirstError)
{
flag = false;
}
}
if ((flag && testData) && this[i].IsFile)
{
if (resultHandler != null)
{
status.SetOperation(TestOperation.EntryData);
resultHandler(status, null);
}
Crc32 crc = new Crc32();
using (Stream stream = this.GetInputStream(this[i]))
{
int num3;
byte[] buffer = new byte[0x1000];
long num2 = 0L;
while ((num3 = stream.Read(buffer, 0, buffer.Length)) > 0)
{
crc.Update(buffer, 0, num3);
if (resultHandler != null)
{
num2 += num3;
status.SetBytesTested(num2);
resultHandler(status, null);
}
}
}
if (this[i].Crc != crc.Value)
{
status.AddError();
if (resultHandler != null)
{
resultHandler(status, "CRC mismatch");
}
if (strategy == TestStrategy.FindFirstError)
{
flag = false;
}
}
if ((this[i].Flags & 8) != 0)
{
ZipHelperStream stream2 = new ZipHelperStream(this.baseStream_);
DescriptorData data = new DescriptorData();
stream2.ReadDataDescriptor(this[i].LocalHeaderRequiresZip64, data);
if (this[i].Crc != data.Crc)
{
status.AddError();
}
if (this[i].CompressedSize != data.CompressedSize)
{
status.AddError();
}
if (this[i].Size != data.Size)
{
status.AddError();
}
}
}
if (resultHandler != null)
{
status.SetOperation(TestOperation.EntryComplete);
resultHandler(status, null);
}
}
if (resultHandler != null)
{
status.SetOperation(TestOperation.MiscellaneousTests);
resultHandler(status, null);
}
}
catch (Exception exception2)
{
status.AddError();
if (resultHandler != null)
{
resultHandler(status, string.Format("Exception during test - '{0}'", exception2.Message));
}
}
if (resultHandler != null)
{
status.SetOperation(TestOperation.Complete);
status.SetEntry(null);
resultHandler(status, null);
}
return (status.ErrorCount == 0);
}
private void RunUpdates()
{
ZipFile file;
long sizeEntries = 0L;
long num2 = 0L;
bool flag = false;
long destinationPosition = 0L;
if (this.IsNewArchive)
{
file = this;
file.baseStream_.Position = 0L;
flag = true;
}
else if (this.archiveStorage_.UpdateMode == FileUpdateMode.Direct)
{
file = this;
file.baseStream_.Position = 0L;
flag = true;
this.updates_.Sort(new UpdateComparer());
}
else
{
file = Create(this.archiveStorage_.GetTemporaryOutput());
file.UseZip64 = this.UseZip64;
if (this.key != null)
{
file.key = (byte[]) this.key.Clone();
}
}
try
{
foreach (ZipUpdate update in this.updates_)
{
if (update != null)
{
switch (update.Command)
{
case UpdateCommand.Copy:
if (!flag)
{
goto Label_012E;
}
this.CopyEntryDirect(file, update, ref destinationPosition);
goto Label_0196;
case UpdateCommand.Modify:
this.ModifyEntry(file, update);
goto Label_0196;
case UpdateCommand.Add:
if (!(this.IsNewArchive || !flag))
{
file.baseStream_.Position = destinationPosition;
}
this.AddEntry(file, update);
if (flag)
{
destinationPosition = file.baseStream_.Position;
}
goto Label_0196;
}
}
goto Label_0196;
Label_012E:
this.CopyEntry(file, update);
Label_0196:;
}
if (!(this.IsNewArchive || !flag))
{
file.baseStream_.Position = destinationPosition;
}
long position = file.baseStream_.Position;
foreach (ZipUpdate update in this.updates_)
{
if (update != null)
{
sizeEntries += file.WriteCentralDirectoryHeader(update.OutEntry);
}
}
byte[] comment = (this.newComment_ != null) ? this.newComment_.RawComment : ZipConstants.ConvertToArray(this.comment_);
using (ZipHelperStream stream = new ZipHelperStream(file.baseStream_))
{
stream.WriteEndOfCentralDirectory(this.updateCount_, sizeEntries, position, comment);
}
num2 = file.baseStream_.Position;
foreach (ZipUpdate update in this.updates_)
{
if (update != null)
{
if ((update.CrcPatchOffset > 0L) && (update.OutEntry.CompressedSize > 0L))
{
file.baseStream_.Position = update.CrcPatchOffset;
file.WriteLEInt((int) update.OutEntry.Crc);
}
if (update.SizePatchOffset > 0L)
{
file.baseStream_.Position = update.SizePatchOffset;
if (update.OutEntry.LocalHeaderRequiresZip64)
{
file.WriteLeLong(update.OutEntry.Size);
file.WriteLeLong(update.OutEntry.CompressedSize);
}
else
{
file.WriteLEInt((int) update.OutEntry.CompressedSize);
file.WriteLEInt((int) update.OutEntry.Size);
}
}
}
}
}
catch
{
file.Close();
if (!(flag || (file.Name == null)))
{
File.Delete(file.Name);
}
throw;
}
if (flag)
{
file.baseStream_.SetLength(num2);
file.baseStream_.Flush();
this.isNewArchive_ = false;
this.ReadEntries();
}
else
{
this.baseStream_.Close();
this.Reopen(this.archiveStorage_.ConvertTemporaryToFinal());
}
}
