public void SetData(byte[] data, int index, int count) { using (var stream = new MemoryStream(data, index, count, false)) { using (var stream2 = new ZipHelperStream(stream)) { stream2.ReadLeInt(); while (stream2.Position < stream2.Length) { var num = stream2.ReadLeShort(); var num2 = stream2.ReadLeShort(); if (num == 1) { if (num2 >= 0x18) { var fileTime = stream2.ReadLeLong(); _lastModificationTime = DateTime.FromFileTime(fileTime); var num4 = stream2.ReadLeLong(); _lastAccessTime = DateTime.FromFileTime(num4); var num5 = stream2.ReadLeLong(); _createTime = DateTime.FromFileTime(num5); } return; } stream2.Seek(num2, SeekOrigin.Current); } } } }
public byte[] GetData() { byte[] buffer; using (MemoryStream stream = new MemoryStream()) { using (ZipHelperStream stream2 = new ZipHelperStream(stream)) { stream2.IsStreamOwner = false; stream2.WriteByte((byte)_flags); if (((byte)(_flags & Flags.ModificationTime)) != 0) { DateTime time = new DateTime(0x7b2, 1, 1, 0, 0, 0); TimeSpan span = _modificationTime.ToUniversalTime() - time.ToUniversalTime(); int totalSeconds = (int)span.TotalSeconds; stream2.WriteLeInt(totalSeconds); } if (((byte)(_flags & Flags.AccessTime)) != 0) { DateTime time2 = new DateTime(0x7b2, 1, 1, 0, 0, 0); TimeSpan span2 = _lastAccessTime.ToUniversalTime() - time2.ToUniversalTime(); int num2 = (int)span2.TotalSeconds; stream2.WriteLeInt(num2); } if (((byte)(_flags & Flags.CreateTime)) != 0) { DateTime time3 = new DateTime(0x7b2, 1, 1, 0, 0, 0); TimeSpan span3 = _createTime.ToUniversalTime() - time3.ToUniversalTime(); int num3 = (int)span3.TotalSeconds; stream2.WriteLeInt(num3); } buffer = stream.ToArray(); } } return buffer; }
public void SetData(byte[] data, int index, int count) { using (MemoryStream stream = new MemoryStream(data, index, count, false)) { using (ZipHelperStream stream2 = new ZipHelperStream(stream)) { _flags = (Flags)((byte)stream2.ReadByte()); if ((((byte)(_flags & Flags.ModificationTime)) != 0) && (count >= 5)) { int seconds = stream2.ReadLeInt(); DateTime time = new DateTime(0x7b2, 1, 1, 0, 0, 0); _modificationTime = (time.ToUniversalTime() + new TimeSpan(0, 0, 0, seconds, 0)).ToLocalTime(); } if (((byte)(_flags & Flags.AccessTime)) != 0) { int num2 = stream2.ReadLeInt(); DateTime time3 = new DateTime(0x7b2, 1, 1, 0, 0, 0); _lastAccessTime = (time3.ToUniversalTime() + new TimeSpan(0, 0, 0, num2, 0)).ToLocalTime(); } if (((byte)(_flags & Flags.CreateTime)) != 0) { int num3 = stream2.ReadLeInt(); DateTime time5 = new DateTime(0x7b2, 1, 1, 0, 0, 0); _createTime = (time5.ToUniversalTime() + new TimeSpan(0, 0, 0, num3, 0)).ToLocalTime(); } } } }
public byte[] GetData() { byte[] buffer; using (var stream = new MemoryStream()) { using (var stream2 = new ZipHelperStream(stream)) { stream2.IsStreamOwner = false; stream2.WriteLeInt(0); stream2.WriteLeShort(1); stream2.WriteLeShort(0x18); stream2.WriteLeLong(_lastModificationTime.ToFileTime()); stream2.WriteLeLong(_lastAccessTime.ToFileTime()); stream2.WriteLeLong(_createTime.ToFileTime()); buffer = stream.ToArray(); } } return(buffer); }
public byte[] GetData() { byte[] buffer; using (var stream = new MemoryStream()) { using (var stream2 = new ZipHelperStream(stream)) { stream2.IsStreamOwner = false; stream2.WriteLeInt(0); stream2.WriteLeShort(1); stream2.WriteLeShort(0x18); stream2.WriteLeLong(_lastModificationTime.ToFileTime()); stream2.WriteLeLong(_lastAccessTime.ToFileTime()); stream2.WriteLeLong(_createTime.ToFileTime()); buffer = stream.ToArray(); } } return buffer; }
/// <summary> /// Get the binary data representing this instance. /// </summary> /// <returns>The raw binary data representing this instance.</returns> public byte[] GetData() { using (MemoryStream ms = new MemoryStream()) using (ZipHelperStream helperStream = new ZipHelperStream(ms)) { helperStream.IsStreamOwner = false; helperStream.WriteLEInt(0); // Reserved helperStream.WriteLEShort(1); // Tag helperStream.WriteLEShort(24); // Length = 3 x 8. helperStream.WriteLELong(lastModificationTime_.ToFileTime()); helperStream.WriteLELong(lastAccessTime_.ToFileTime()); helperStream.WriteLELong(createTime_.ToFileTime()); return ms.ToArray(); } }
private void UpdateCommentOnly() { var length = _baseStream.Length; ZipHelperStream stream; if (_archiveStorage.UpdateMode == FileUpdateMode.Safe) { stream = new ZipHelperStream(_archiveStorage.MakeTemporaryCopy(_baseStream)) { IsStreamOwner = true }; _baseStream.Close(); _baseStream = null; } else if (_archiveStorage.UpdateMode == FileUpdateMode.Direct) { _baseStream = _archiveStorage.OpenForDirectUpdate(_baseStream); stream = new ZipHelperStream(_baseStream); } else { _baseStream.Close(); _baseStream = null; stream = new ZipHelperStream(Name); } using (stream) { if (stream.LocateBlockWithSignature(ZipConstants.EndOfCentralDirectorySignature, length, 0x16, 0xffff) < 0L) { throw new ZipException("Cannot find central directory"); } stream.Position += 0x10L; var rawComment = _newComment.RawComment; stream.WriteLeShort(rawComment.Length); stream.Write(rawComment, 0, rawComment.Length); stream.SetLength(stream.Position); } if (_archiveStorage.UpdateMode == FileUpdateMode.Safe) { Reopen(_archiveStorage.ConvertTemporaryToFinal()); } else { ReadEntries(); } }
public void CommitUpdate() { if (_isDisposed) { throw new ObjectDisposedException("ZipFile"); } CheckUpdating(); try { _updateIndex.Clear(); _updateIndex = null; if (_contentsEdited) { RunUpdates(); } else if (_commentEdited) { UpdateCommentOnly(); } else if (_entries.Length == 0) { var comment = (_newComment != null) ? _newComment.RawComment : ZipConstants.ConvertToArray(_comment); using (var stream = new ZipHelperStream(_baseStream)) { stream.WriteEndOfCentralDirectory(0L, 0L, 0L, comment); } } } finally { PostUpdateCleanup(); } }
public override void Finish() { if (this.entries == null) { return; } if (this.curEntry != null) { this.CloseEntry(); } long noOfEntries = (long)this.entries.Count; long num = 0L; foreach (object obj in this.entries) { ZipEntry zipEntry = (ZipEntry)obj; this.WriteLeInt(33639248); this.WriteLeShort(45); this.WriteLeShort(zipEntry.Version); this.WriteLeShort(zipEntry.Flags); this.WriteLeShort((int)((short)zipEntry.CompressionMethod)); this.WriteLeInt((int)zipEntry.DosTime); this.WriteLeInt((int)zipEntry.Crc); if (zipEntry.IsZip64Forced() || zipEntry.CompressedSize >= unchecked ((long)((ulong)-1))) { this.WriteLeInt(-1); } else { this.WriteLeInt((int)zipEntry.CompressedSize); } if (zipEntry.IsZip64Forced() || zipEntry.Size >= unchecked ((long)((ulong)-1))) { this.WriteLeInt(-1); } else { this.WriteLeInt((int)zipEntry.Size); } byte[] array = ZipConstants.ConvertToArray(zipEntry.Flags, zipEntry.Name); if (array.Length > 65535) { throw new ZipException("Name too long."); } ZipExtraData zipExtraData = new ZipExtraData(zipEntry.ExtraData); if (zipEntry.CentralHeaderRequiresZip64) { zipExtraData.StartNewEntry(); if (zipEntry.IsZip64Forced() || zipEntry.Size >= unchecked ((long)((ulong)-1))) { zipExtraData.AddLeLong(zipEntry.Size); } if (zipEntry.IsZip64Forced() || zipEntry.CompressedSize >= unchecked ((long)((ulong)-1))) { zipExtraData.AddLeLong(zipEntry.CompressedSize); } if (zipEntry.Offset >= unchecked ((long)((ulong)-1))) { zipExtraData.AddLeLong(zipEntry.Offset); } zipExtraData.AddNewEntry(1); } else { zipExtraData.Delete(1); } byte[] entryData = zipExtraData.GetEntryData(); byte[] array2 = (zipEntry.Comment != null) ? ZipConstants.ConvertToArray(zipEntry.Flags, zipEntry.Comment) : new byte[0]; if (array2.Length > 65535) { throw new ZipException("Comment too long."); } this.WriteLeShort(array.Length); this.WriteLeShort(entryData.Length); this.WriteLeShort(array2.Length); this.WriteLeShort(0); this.WriteLeShort(0); if (zipEntry.ExternalFileAttributes != -1) { this.WriteLeInt(zipEntry.ExternalFileAttributes); } else if (zipEntry.IsDirectory) { this.WriteLeInt(16); } else { this.WriteLeInt(0); } if (zipEntry.Offset >= unchecked ((long)((ulong)-1))) { this.WriteLeInt(-1); } else { this.WriteLeInt((int)zipEntry.Offset); } if (array.Length > 0) { this.baseOutputStream.Write(array, 0, array.Length); } if (entryData.Length > 0) { this.baseOutputStream.Write(entryData, 0, entryData.Length); } if (array2.Length > 0) { this.baseOutputStream.Write(array2, 0, array2.Length); } num += (long)(46 + array.Length + entryData.Length + array2.Length); } using (ZipHelperStream zipHelperStream = new ZipHelperStream(this.baseOutputStream)) { zipHelperStream.WriteEndOfCentralDirectory(noOfEntries, num, this.offset, this.zipComment); } this.entries = null; }
public bool TestArchive(bool testData, TestStrategy strategy = TestStrategy.FindFirstError, ZipTestResultHandler resultHandler = null) { if (_isDisposed) { throw new ObjectDisposedException("ZipFile"); } var status = new TestStatus(this); resultHandler?.Invoke(status, null); var tests = testData ? (HeaderTest.Header | HeaderTest.Extract) : HeaderTest.Header; var flag = true; try { for (var i = 0; flag && (i < Count); i++) { if (resultHandler != null) { status.SetEntry(this[i]); status.SetOperation(TestOperation.EntryHeader); resultHandler(status, null); } try { TestLocalHeader(this[i], tests); } catch (ZipException exception) { status.AddError(); resultHandler?.Invoke(status, $"Exception during test - '{exception.Message}'"); if (strategy == TestStrategy.FindFirstError) { flag = false; } } if ((flag && testData) && this[i].IsFile) { if (resultHandler != null) { status.SetOperation(TestOperation.EntryData); resultHandler(status, null); } var crc = new Crc32(); using (var stream = GetInputStream(this[i])) { int num3; var buffer = new byte[DefaultBufferSize]; var 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(); resultHandler?.Invoke(status, "CRC mismatch"); if (strategy == TestStrategy.FindFirstError) { flag = false; } } if ((this[i].Flags & 8) != 0) { var stream2 = new ZipHelperStream(_baseStream); var 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(); resultHandler?.Invoke(status, $"Exception during test - '{exception2.Message}'"); } if (resultHandler != null) { status.SetOperation(TestOperation.Complete); status.SetEntry(null); resultHandler(status, null); } return (status.ErrorCount == 0); }
/// <summary> /// Commit current updates, updating this archive. /// </summary> /// <seealso cref="BeginUpdate()"></seealso> /// <seealso cref="AbortUpdate"></seealso> public void CommitUpdate() { CheckUpdating(); if ( contentsEdited_ ) { RunUpdates(); } else if ( commentEdited_ ) { UpdateCommentOnly(); } else { // Create an empty archive if none existed originally. if ( (entries_ != null) && (entries_.Length == 0) ) { byte[] theComment = (newComment_ != null) ? newComment_.RawComment : ZipConstants.ConvertToArray(comment_); using ( ZipHelperStream zhs = new ZipHelperStream(baseStream_) ) { zhs.WriteEndOfCentralDirectory(0, 0, 0, theComment); } } } PostUpdateCleanup(); }
void RunUpdates() { long sizeEntries = 0; long endOfStream = 0; bool allOk = true; bool directUpdate = false; long destinationPosition = 0; // NOT SFX friendly ZipFile workFile; if ( IsNewArchive ) { workFile = this; workFile.baseStream_.Position = 0; directUpdate = true; } else if ( archiveStorage_.UpdateMode == FileUpdateMode.Direct ) { workFile = this; workFile.baseStream_.Position = 0; directUpdate = true; // Sort the updates by offset within copies/modifies, then adds. // This ensures that copies will not overwrite any required data. updates_.Sort(new UpdateComparer()); } else { workFile = ZipFile.Create(archiveStorage_.GetTemporaryOutput()); if (key != null) { workFile.key = (byte[])key.Clone(); } } try { foreach ( ZipUpdate update in updates_ ) { switch ( update.Command ) { case UpdateCommand.Copy: if ( directUpdate ) { CopyEntryDirect(workFile, update, ref destinationPosition); } else { CopyEntry(workFile, update); } break; case UpdateCommand.Modify: // TODO: Direct modifying of an entry. ModifyEntry(workFile, update); break; case UpdateCommand.Add: if ( !IsNewArchive && directUpdate ) { workFile.baseStream_.Position = destinationPosition; } AddEntry(workFile, update); if ( directUpdate ) { destinationPosition = workFile.baseStream_.Position; } break; } } if ( !IsNewArchive && directUpdate ) { workFile.baseStream_.Position = destinationPosition; } long centralDirOffset = workFile.baseStream_.Position; foreach ( ZipUpdate update in updates_ ) { sizeEntries += workFile.WriteCentralDirectoryHeader(update.OutEntry); } byte[] theComment = (newComment_ != null) ? newComment_.RawComment : ZipConstants.ConvertToArray(comment_); using ( ZipHelperStream zhs = new ZipHelperStream(workFile.baseStream_) ) { zhs.WriteEndOfCentralDirectory(updates_.Count, sizeEntries, centralDirOffset, theComment); } endOfStream = workFile.baseStream_.Position; // And now patch entries... foreach ( ZipUpdate update in updates_ ) { // If the size of the entry is zero leave the crc as 0 as well. // The calculated crc will be all bits on... if ( (update.CrcPatchOffset > 0) && (update.OutEntry.CompressedSize > 0) ) { workFile.baseStream_.Position = update.CrcPatchOffset; workFile.WriteLEInt(( int )update.OutEntry.Crc); } if ( update.SizePatchOffset > 0 ) { workFile.baseStream_.Position = update.SizePatchOffset; if ( update.Entry.LocalHeaderRequiresZip64 ) { workFile.WriteLeLong(update.OutEntry.Size); workFile.WriteLeLong(update.OutEntry.CompressedSize); } else { workFile.WriteLEInt(( int )update.OutEntry.CompressedSize); workFile.WriteLEInt(( int )update.OutEntry.Size); } } } } catch(Exception) { allOk = false; } finally { if ( directUpdate ) { if ( allOk ) { workFile.baseStream_.Flush(); workFile.baseStream_.SetLength(endOfStream); } } else { workFile.Close(); } } if ( allOk ) { if ( directUpdate ) { isNewArchive_ = false; workFile.baseStream_.Flush(); ReadEntries(); } else { baseStream_.Close(); Reopen(archiveStorage_.ConvertTemporaryToFinal()); } } else { workFile.Close(); if ( !directUpdate && (workFile.Name != null) ) { File.Delete(workFile.Name); } } }
void AddEntry(ZipFile workFile, ZipUpdate update) { Stream source = null; if ( update.Entry.IsFile ) { source = update.GetSource(); if ( source == null ) { source = updateDataSource_.GetSource(update.Entry, update.Filename); } } if ( source != null ) { using ( source ) { long sourceStreamLength = source.Length; if ( update.OutEntry.Size < 0 ) { update.OutEntry.Size = sourceStreamLength; } else { // Check for errant entries. if ( update.OutEntry.Size != sourceStreamLength ) { throw new ZipException("Entry size/stream size mismatch"); } } workFile.WriteLocalEntryHeader(update); long dataStart = workFile.baseStream_.Position; using ( Stream output = workFile.GetOutputStream(update.OutEntry) ) { CopyBytes(update, output, source, sourceStreamLength, true); } long dataEnd = workFile.baseStream_.Position; update.OutEntry.CompressedSize = dataEnd - dataStart; if ((update.OutEntry.Flags & (int)GeneralBitFlags.Descriptor) == (int)GeneralBitFlags.Descriptor) { ZipHelperStream helper = new ZipHelperStream(workFile.baseStream_); helper.WriteDataDescriptor(update.OutEntry); } } } else { workFile.WriteLocalEntryHeader(update); update.OutEntry.CompressedSize = 0; } }
/// <summary> /// Set the data from the raw values provided. /// </summary> /// <param name="data">The raw data to extract values from.</param> /// <param name="index">The index to start extracting values from.</param> /// <param name="count">The number of bytes available.</param> public void SetData(byte[] data, int index, int count) { using (MemoryStream ms = new MemoryStream(data, index, count, false)) using (ZipHelperStream helperStream = new ZipHelperStream(ms)) { helperStream.ReadLEInt(); // Reserved while (helperStream.Position < helperStream.Length) { int ntfsTag = helperStream.ReadLEShort(); int ntfsLength = helperStream.ReadLEShort(); if (ntfsTag == 1) { if (ntfsLength >= 24) { long lastModificationTicks = helperStream.ReadLELong(); lastModificationTime_ = DateTime.FromFileTime(lastModificationTicks); long lastAccessTicks = helperStream.ReadLELong(); lastAccessTime_ = DateTime.FromFileTime(lastAccessTicks); long createTimeTicks = helperStream.ReadLELong(); createTime_ = DateTime.FromFileTime(createTimeTicks); } break; } else { // An unknown NTFS tag so simply skip it. helperStream.Seek(ntfsLength, SeekOrigin.Current); } } } }
/// <summary> /// Get the binary data representing this instance. /// </summary> /// <returns>The raw binary data representing this instance.</returns> public byte[] GetData() { using (MemoryStream ms = new MemoryStream()) using (ZipHelperStream helperStream = new ZipHelperStream(ms)) { helperStream.IsStreamOwner = false; helperStream.WriteByte((byte)flags_); // Flags if ( (flags_ & Flags.ModificationTime) != 0) { TimeSpan span = modificationTime_.ToUniversalTime() - new System.DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime(); int seconds = (int)span.TotalSeconds; helperStream.WriteLEInt(seconds); } if ( (flags_ & Flags.AccessTime) != 0) { TimeSpan span = lastAccessTime_.ToUniversalTime() - new System.DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime(); int seconds = (int)span.TotalSeconds; helperStream.WriteLEInt(seconds); } if ( (flags_ & Flags.CreateTime) != 0) { TimeSpan span = createTime_.ToUniversalTime() - new System.DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime(); int seconds = (int)span.TotalSeconds; helperStream.WriteLEInt(seconds); } return ms.ToArray(); } }
/// <summary> /// Set the data from the raw values provided. /// </summary> /// <param name="data">The raw data to extract values from.</param> /// <param name="index">The index to start extracting values from.</param> /// <param name="count">The number of bytes available.</param> public void SetData(byte[] data, int index, int count) { using (MemoryStream ms = new MemoryStream(data, index, count, false)) using (ZipHelperStream helperStream = new ZipHelperStream(ms)) { // bit 0 if set, modification time is present // bit 1 if set, access time is present // bit 2 if set, creation time is present flags_ = (Flags)helperStream.ReadByte(); if (((flags_ & Flags.ModificationTime) != 0) && (count >= 5)) { int iTime = helperStream.ReadLEInt(); modificationTime_ = (new System.DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime() + new TimeSpan(0, 0, 0, iTime, 0)).ToLocalTime(); } if ((flags_ & Flags.AccessTime) != 0) { int iTime = helperStream.ReadLEInt(); lastAccessTime_ = (new System.DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime() + new TimeSpan(0, 0, 0, iTime, 0)).ToLocalTime(); } if ((flags_ & Flags.CreateTime) != 0) { int iTime = helperStream.ReadLEInt(); createTime_ = (new System.DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime() + new TimeSpan(0, 0, 0, iTime, 0)).ToLocalTime(); } } }
private long LocateBlockWithSignature(int signature, long endLocation, int minimumBlockSize, int maximumVariableData) { using (var stream = new ZipHelperStream(_baseStream)) { return stream.LocateBlockWithSignature(signature, endLocation, minimumBlockSize, maximumVariableData); } }
/// <summary> /// Test an archive for integrity/validity /// </summary> /// <param name="testData">Perform low level data Crc check</param> /// <param name="strategy">The <see cref="TestStrategy"></see> to apply.</param> /// <param name="resultHandler">The <see cref="ZipTestResultHandler"></see> handler to call during testing.</param> /// <returns>true if all tests pass, false otherwise</returns> public bool TestArchive(bool testData, TestStrategy strategy, ZipTestResultHandler resultHandler) { TestStatus status = new TestStatus(this); if ( resultHandler != null ) { resultHandler(status, null); } HeaderTest test = testData ? (HeaderTest.Header | HeaderTest.Extract) : HeaderTest.Header; bool testing = true; try { int entryIndex = 0; while ( testing && (entryIndex < Count) ) { if ( resultHandler != null ) { status.SetEntry(this[entryIndex]); status.SetOperation(TestOperation.EntryHeader); resultHandler(status, null); } try { TestLocalHeader(this[entryIndex], test); } catch(ZipException ex) { status.AddError(); if ( resultHandler != null ) { resultHandler(status, string.Format("Exception during test - '{0}'", ex.Message)); } if ( strategy == TestStrategy.FindFirstError ) { testing = false; } } if ( testing && testData && this[entryIndex].IsFile ) { if ( resultHandler != null ) { status.SetOperation(TestOperation.EntryData); resultHandler(status, null); } Stream entryStream = this.GetInputStream(this[entryIndex]); Crc32 crc = new Crc32(); byte[] buffer = new byte[4096]; long totalBytes = 0; int bytesRead; while ((bytesRead = entryStream.Read(buffer, 0, buffer.Length)) > 0) { crc.Update(buffer, 0, bytesRead); if ( resultHandler != null ) { totalBytes += bytesRead; status.SetBytesTested(totalBytes); resultHandler(status, null); } } if (this[entryIndex].Crc != crc.Value) { status.AddError(); if ( resultHandler != null ) { resultHandler(status, "CRC mismatch"); } if ( strategy == TestStrategy.FindFirstError ) { testing = false; } } if (( this[entryIndex].Flags & (int)GeneralBitFlags.Descriptor) != 0 ) { ZipHelperStream helper = new ZipHelperStream(baseStream_); DescriptorData data = new DescriptorData(); helper.ReadDataDescriptor(this[entryIndex].LocalHeaderRequiresZip64, data); if (this[entryIndex].Crc != data.Crc) { status.AddError(); } if (this[entryIndex].CompressedSize != data.CompressedSize) { status.AddError(); } if (this[entryIndex].Size != data.Size) { status.AddError(); } } } if ( resultHandler != null ) { status.SetOperation(TestOperation.EntryComplete); resultHandler(status, null); } entryIndex += 1; } if ( resultHandler != null ) { status.SetOperation(TestOperation.MiscellaneousTests); resultHandler(status, null); } // TODO: the 'Corrina Johns' test where local headers are missing from // the central directory. They are therefore invisible to many archivers. } catch (Exception ex) { status.AddError(); if ( resultHandler != null ) { resultHandler(status, string.Format("Exception during test - '{0}'", ex.Message)); } } if ( resultHandler != null ) { status.SetOperation(TestOperation.Complete); status.SetEntry(null); resultHandler(status, null); } return (status.ErrorCount == 0); }
public override void Finish() { if (_entries != null) { if (_curEntry != null) { CloseEntry(); } long count = _entries.Count; long sizeEntries = 0L; foreach (ZipEntry entry in _entries) { WriteLeInt(ZipConstants.CentralHeaderSignature); WriteLeShort(0x33); WriteLeShort(entry.Version); WriteLeShort(entry.Flags); WriteLeShort((short)entry.CompressionMethodForHeader); WriteLeInt((int)entry.DosTime); WriteLeInt((int)entry.Crc); if (entry.IsZip64Forced() || (entry.CompressedSize >= 0xffffffffL)) { WriteLeInt(-1); } else { WriteLeInt((int)entry.CompressedSize); } if (entry.IsZip64Forced() || (entry.Size >= 0xffffffffL)) { WriteLeInt(-1); } else { WriteLeInt((int)entry.Size); } byte[] buffer = ZipConstants.ConvertToArray(entry.Flags, entry.Name); if (buffer.Length > 0xffff) { throw new ZipException("Name too long."); } ZipExtraData extraData = new ZipExtraData(entry.ExtraData); if (entry.CentralHeaderRequiresZip64) { extraData.StartNewEntry(); if (entry.IsZip64Forced() || (entry.Size >= 0xffffffffL)) { extraData.AddLeLong(entry.Size); } if (entry.IsZip64Forced() || (entry.CompressedSize >= 0xffffffffL)) { extraData.AddLeLong(entry.CompressedSize); } if (entry.Offset >= 0xffffffffL) { extraData.AddLeLong(entry.Offset); } extraData.AddNewEntry(1); } else { extraData.Delete(1); } if (entry.AesKeySize > 0) { AddExtraDataAes(entry, extraData); } byte[] entryData = extraData.GetEntryData(); byte[] buffer3 = (entry.Comment != null) ? ZipConstants.ConvertToArray(entry.Flags, entry.Comment) : new byte[0]; if (buffer3.Length > 0xffff) { throw new ZipException("Comment too long."); } WriteLeShort(buffer.Length); WriteLeShort(entryData.Length); WriteLeShort(buffer3.Length); WriteLeShort(0); WriteLeShort(0); if (entry.ExternalFileAttributes != -1) { WriteLeInt(entry.ExternalFileAttributes); } else if (entry.IsDirectory) { WriteLeInt(0x10); } else { WriteLeInt(0); } if (entry.Offset >= 0xffffffffL) { WriteLeInt(-1); } else { WriteLeInt((int)entry.Offset); } if (buffer.Length > 0) { BaseOutputStream.Write(buffer, 0, buffer.Length); } if (entryData.Length > 0) { BaseOutputStream.Write(entryData, 0, entryData.Length); } if (buffer3.Length > 0) { BaseOutputStream.Write(buffer3, 0, buffer3.Length); } sizeEntries += ((ZipConstants.CentralHeaderBaseSize + buffer.Length) + entryData.Length) + buffer3.Length; } using (ZipHelperStream stream = new ZipHelperStream(BaseOutputStream)) { stream.WriteEndOfCentralDirectory(count, sizeEntries, _offset, _zipComment); } _entries = null; } }
// NOTE this returns the offset of the first byte after the signature. long LocateBlockWithSignature(int signature, long endLocation, int minimumBlockSize, int maximumVariableData) { using ( ZipHelperStream les = new ZipHelperStream(baseStream_) ) { return les.LocateBlockWithSignature(signature, endLocation, minimumBlockSize, maximumVariableData); } }
/// <summary> /// Finishes the stream. This will write the central directory at the /// end of the zip file and flush the stream. /// </summary> /// <remarks> /// This is automatically called when the stream is closed. /// </remarks> /// <exception cref="System.IO.IOException"> /// An I/O error occurs. /// </exception> /// <exception cref="ZipException"> /// Comment exceeds the maximum length<br/> /// Entry name exceeds the maximum length /// </exception> public override void Finish() { if (entries == null) { return; } if (curEntry != null) { CloseEntry(); } long numEntries = entries.Count; long sizeEntries = 0; foreach (ZipEntry entry in entries) { WriteLeInt(ZipConstants.CentralHeaderSignature); WriteLeShort(ZipConstants.VersionMadeBy); WriteLeShort(entry.Version); WriteLeShort(entry.Flags); WriteLeShort((short)entry.CompressionMethod); WriteLeInt((int)entry.DosTime); WriteLeInt((int)entry.Crc); if (entry.IsZip64Forced() || (entry.CompressedSize >= uint.MaxValue)) { WriteLeInt(-1); } else { WriteLeInt((int)entry.CompressedSize); } if (entry.IsZip64Forced() || (entry.Size >= uint.MaxValue)) { WriteLeInt(-1); } else { WriteLeInt((int)entry.Size); } byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name); if (name.Length > 0xffff) { throw new ZipException("Name too long."); } ZipExtraData ed = new ZipExtraData(entry.ExtraData); if (entry.CentralHeaderRequiresZip64) { ed.StartNewEntry(); if (entry.IsZip64Forced() || (entry.Size >= 0xffffffff)) { ed.AddLeLong(entry.Size); } if (entry.IsZip64Forced() || (entry.CompressedSize >= 0xffffffff)) { ed.AddLeLong(entry.CompressedSize); } if (entry.Offset >= 0xffffffff) { ed.AddLeLong(entry.Offset); } ed.AddNewEntry(1); } else { ed.Delete(1); } byte[] extra = ed.GetEntryData(); byte[] entryComment = (entry.Comment != null) ? ZipConstants.ConvertToArray(entry.Flags, entry.Comment) : new byte[0]; if (entryComment.Length > 0xffff) { throw new ZipException("Comment too long."); } WriteLeShort(name.Length); WriteLeShort(extra.Length); WriteLeShort(entryComment.Length); WriteLeShort(0); // disk number WriteLeShort(0); // internal file attributes // external file attributes if (entry.ExternalFileAttributes != -1) { WriteLeInt(entry.ExternalFileAttributes); } else { if (entry.IsDirectory) // mark entry as directory (from nikolam.AT.perfectinfo.com) { WriteLeInt(16); } else { WriteLeInt(0); } } if (entry.Offset >= uint.MaxValue) { WriteLeInt(-1); } else { WriteLeInt((int)entry.Offset); } if (name.Length > 0) { baseOutputStream.Write(name, 0, name.Length); } if (extra.Length > 0) { baseOutputStream.Write(extra, 0, extra.Length); } if (entryComment.Length > 0) { baseOutputStream.Write(entryComment, 0, entryComment.Length); } sizeEntries += ZipConstants.CentralHeaderBaseSize + name.Length + extra.Length + entryComment.Length; } using (ZipHelperStream zhs = new ZipHelperStream(baseOutputStream)) { zhs.WriteEndOfCentralDirectory(numEntries, sizeEntries, offset, zipComment); } entries = null; }
void UpdateCommentOnly() { long baseLength = baseStream_.Length; ZipHelperStream updateFile = null; if ( archiveStorage_.UpdateMode == FileUpdateMode.Safe ) { Stream copyStream = archiveStorage_.MakeTemporaryCopy(baseStream_); updateFile = new ZipHelperStream(copyStream); updateFile.IsStreamOwner = true; baseStream_.Close(); baseStream_ = null; } else { if (archiveStorage_.UpdateMode == FileUpdateMode.Direct) { // TODO: archiveStorage wasnt intended for this use. // Need to revisit this to tidy up handling as archive storage currently doesnt // handle the original stream well. // The problem is when using an existing zip archive with an in memory archive storage. // The open stream wont support writing but the memory storage should open the same file not an in memory one. // Need to tidy up the archive storage interface and contract basically. baseStream_ = archiveStorage_.OpenForDirectUpdate(baseStream_); updateFile = new ZipHelperStream(baseStream_); } else { baseStream_.Close(); baseStream_ = null; updateFile = new ZipHelperStream(Name); } } using ( updateFile ) { long locatedCentralDirOffset = updateFile.LocateBlockWithSignature(ZipConstants.EndOfCentralDirectorySignature, baseLength, ZipConstants.EndOfCentralRecordBaseSize, 0xffff); if ( locatedCentralDirOffset < 0 ) { throw new ZipException("Cannot find central directory"); } const int CentralHeaderCommentSizeOffset = 16; updateFile.Position += CentralHeaderCommentSizeOffset; byte[] rawComment = newComment_.RawComment; updateFile.WriteLEShort(rawComment.Length); updateFile.Write(rawComment, 0, rawComment.Length); updateFile.SetLength(updateFile.Position); } if ( archiveStorage_.UpdateMode == FileUpdateMode.Safe ) { Reopen(archiveStorage_.ConvertTemporaryToFinal()); } else { ReadEntries(); } }
/// <summary> /// Finishes the stream. This will write the central directory at the /// end of the zip file and flush the stream. /// </summary> /// <remarks> /// This is automatically called when the stream is closed. /// </remarks> /// <exception cref="System.IO.IOException"> /// An I/O error occurs. /// </exception> /// <exception cref="ZipException"> /// Comment exceeds the maximum length<br/> /// Entry name exceeds the maximum length /// </exception> public override void Finish() { if (entries == null) { return; } if (curEntry != null) { CloseEntry(); } long numEntries = entries.Count; long sizeEntries = 0; foreach (ZipEntry entry in entries) { WriteLeInt(ZipConstants.CentralHeaderSignature); WriteLeShort(ZipConstants.VersionMadeBy); WriteLeShort(entry.Version); WriteLeShort(entry.Flags); WriteLeShort((short)entry.CompressionMethod); WriteLeInt((int)entry.DosTime); WriteLeInt((int)entry.Crc); if ( entry.IsZip64Forced() || (entry.CompressedSize >= uint.MaxValue) ) { WriteLeInt(-1); } else { WriteLeInt((int)entry.CompressedSize); } if ( entry.IsZip64Forced() || (entry.Size >= uint.MaxValue) ) { WriteLeInt(-1); } else { WriteLeInt((int)entry.Size); } byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name); if (name.Length > 0xffff) { throw new ZipException("Name too long."); } ZipExtraData ed = new ZipExtraData(entry.ExtraData); if ( entry.CentralHeaderRequiresZip64 ) { ed.StartNewEntry(); if ( entry.IsZip64Forced() || (entry.Size >= 0xffffffff) ) { ed.AddLeLong(entry.Size); } if ( entry.IsZip64Forced() || (entry.CompressedSize >= 0xffffffff) ) { ed.AddLeLong(entry.CompressedSize); } if ( entry.Offset >= 0xffffffff ) { ed.AddLeLong(entry.Offset); } ed.AddNewEntry(1); } else { ed.Delete(1); } byte[] extra = ed.GetEntryData(); byte[] entryComment = (entry.Comment != null) ? ZipConstants.ConvertToArray(entry.Flags, entry.Comment) : new byte[0]; if (entryComment.Length > 0xffff) { throw new ZipException("Comment too long."); } WriteLeShort(name.Length); WriteLeShort(extra.Length); WriteLeShort(entryComment.Length); WriteLeShort(0); // disk number WriteLeShort(0); // internal file attributes // external file attributes if (entry.ExternalFileAttributes != -1) { WriteLeInt(entry.ExternalFileAttributes); } else { if (entry.IsDirectory) { // mark entry as directory (from nikolam.AT.perfectinfo.com) WriteLeInt(16); } else { WriteLeInt(0); } } if ( entry.Offset >= uint.MaxValue ) { WriteLeInt(-1); } else { WriteLeInt((int)entry.Offset); } if ( name.Length > 0 ) { baseOutputStream_.Write(name, 0, name.Length); } if ( extra.Length > 0 ) { baseOutputStream_.Write(extra, 0, extra.Length); } if ( entryComment.Length > 0 ) { baseOutputStream_.Write(entryComment, 0, entryComment.Length); } sizeEntries += ZipConstants.CentralHeaderBaseSize + name.Length + extra.Length + entryComment.Length; } using ( ZipHelperStream zhs = new ZipHelperStream(baseOutputStream_) ) { zhs.WriteEndOfCentralDirectory(numEntries, sizeEntries, offset, zipComment); } entries = null; }
private void RunUpdates() { ZipFile file; var sizeEntries = 0L; long num2; var flag = false; var destinationPosition = 0L; if (IsNewArchive) { file = this; file._baseStream.Position = 0L; flag = true; } else if (_archiveStorage.UpdateMode == FileUpdateMode.Direct) { file = this; file._baseStream.Position = 0L; flag = true; _updates.Sort(new UpdateComparer()); } else { file = Create(_archiveStorage.GetTemporaryOutput()); file.UseZip64 = UseZip64; if (_key != null) { file._key = (byte[])_key.Clone(); } } try { foreach (ZipUpdate update in _updates) { if (update != null) { switch (update.Command) { case UpdateCommand.Copy: if (!flag) { goto Label_00EC; } CopyEntryDirect(file, update, ref destinationPosition); break; case UpdateCommand.Modify: ModifyEntry(file, update); break; case UpdateCommand.Add: goto Label_0104; } } continue; Label_00EC: CopyEntry(file, update); continue; Label_0104: if (!IsNewArchive && flag) { file._baseStream.Position = destinationPosition; } AddEntry(file, update); if (flag) { destinationPosition = file._baseStream.Position; } } if (!IsNewArchive && flag) { file._baseStream.Position = destinationPosition; } var position = file._baseStream.Position; foreach (ZipUpdate update2 in _updates) { if (update2 != null) { sizeEntries += file.WriteCentralDirectoryHeader(update2.OutEntry); } } var comment = (_newComment != null) ? _newComment.RawComment : ZipConstants.ConvertToArray(_comment); using (var stream = new ZipHelperStream(file._baseStream)) { stream.WriteEndOfCentralDirectory(_updateCount, sizeEntries, position, comment); } num2 = file._baseStream.Position; foreach (ZipUpdate update3 in _updates) { if (update3 != null) { if ((update3.CrcPatchOffset > 0L) && (update3.OutEntry.CompressedSize > 0L)) { file._baseStream.Position = update3.CrcPatchOffset; file.WriteLeInt((int)update3.OutEntry.Crc); } if (update3.SizePatchOffset > 0L) { file._baseStream.Position = update3.SizePatchOffset; if (update3.OutEntry.LocalHeaderRequiresZip64) { file.WriteLeLong(update3.OutEntry.Size); file.WriteLeLong(update3.OutEntry.CompressedSize); } else { file.WriteLeInt((int)update3.OutEntry.CompressedSize); file.WriteLeInt((int)update3.OutEntry.Size); } } } } } catch { file.Close(); if (!flag && (file.Name != null)) { File.Delete(file.Name); } throw; } if (flag) { file._baseStream.SetLength(num2); file._baseStream.Flush(); _isNewArchive = false; ReadEntries(); } else { _baseStream.Close(); Reopen(_archiveStorage.ConvertTemporaryToFinal()); } }