public IExtractor ExtractFile(UInt64 index, Stream outputStream)
{
if (index >= (ulong)_Files.LongLength)
{
throw new ArgumentOutOfRangeException($"Index `{index}` is out of range.");
}
if (outputStream == null || !outputStream.CanWrite)
{
throw new ArgumentException($"Stream `{nameof(outputStream)}` is invalid or cannot be written to.");
}
SevenZipArchiveFile file = _Files[index];
if (file.IsEmpty)
{
Trace.TraceWarning($"Filename: {file.Name} is a directory, empty file or anti file, nothing to output to stream.");
}
else
{
Trace.TraceInformation($"Filename: `{file.Name}`, file size: `{file.Size} bytes`.");
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo);
sx.Extract((UInt64)file.UnPackIndex, outputStream);
}
return(this);
}
public IExtractor ExtractFile(UInt64 index, string outputDirectory)
{
if (index >= (ulong)_Files.LongLength)
{
throw new ArgumentOutOfRangeException($"Index `{index}` is out of range.");
}
SevenZipArchiveFile file = _Files[index];
if (!preProcessFile(outputDirectory, file))
{
string fullPath = Path.Combine(outputDirectory, PreserveDirectoryStructure ? file.Name : Path.GetFileName(file.Name));
// progress provider
SevenZipProgressProvider szpp = null;
if (ProgressDelegate != null)
{
szpp = new SevenZipProgressProvider(_Files, new[] { index }, ProgressDelegate);
}
// extraction
Trace.TraceInformation($"Filename: `{file.Name}`, file size: `{file.Size} bytes`.");
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo, Password);
using (Stream fileStream = File.Create(fullPath))
sx.Extract((UInt64)file.UnPackIndex, fileStream, szpp);
if (file.Time != null)
{
File.SetLastWriteTimeUtc(fullPath, (DateTime)file.Time);
}
}
return(this);
}
public IExtractor ExtractFiles(UInt64[] indices, Func <ArchiveFile, Stream> onStreamRequest, Action <ArchiveFile, Stream> onStreamClose = null)
{
if (indices.Any(index => index >= (ulong)_Files.LongLength))
{
throw new ArgumentOutOfRangeException("An index given in `indices[]` array is out of range.");
}
var streamToFileIndex = new Dictionary <ulong, ulong>();
var streamIndices = new List <ulong>();
ulong streamIndex = 0;
for (ulong i = 0; i < (ulong)_Files.LongLength; ++i)
{
if (!indices.Any() || Array.IndexOf(indices, i) != -1)
{
if (_Files[i].IsEmpty)
{
using (Stream s = onStreamRequest(_Files[i]))
if (s != null)
{
onStreamClose?.Invoke(_Files[i], s);
}
}
else if (indices.Any())
{
streamIndices.Add(streamIndex);
}
}
if (!_Files[i].IsEmpty)
{
streamToFileIndex[streamIndex++] = i;
}
}
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo);
sx.ExtractMultiple(
indices == null ? null : streamIndices.ToArray(),
(ulong index) => onStreamRequest(_Files[streamToFileIndex[index]]),
(ulong index, Stream stream) => onStreamClose?.Invoke(_Files[streamToFileIndex[index]], stream));
return(this);
}
public IExtractor ExtractFile(UInt64 index, string outputDirectory)
{
if (index >= (ulong)_Files.LongLength)
{
throw new ArgumentOutOfRangeException($"Index `{index}` is out of range.");
}
SevenZipArchiveFile file = _Files[index];
if (!Directory.Exists(outputDirectory))
{
Directory.CreateDirectory(outputDirectory);
}
if (!processFile(outputDirectory, file))
{
string fullPath = Path.Combine(outputDirectory, PreserveDirectoryStructure ? file.Name : Path.GetFileName(file.Name));
if (File.Exists(fullPath) && !OverwriteExistingFiles && !SkipExistingFiles)
{
throw new IOException($"File `{file.Name}` already exists.");
}
if (!File.Exists(fullPath) || OverwriteExistingFiles)
{
Trace.TraceInformation($"Filename: `{file.Name}`, file size: `{file.Size} bytes`.");
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo);
using (Stream fileStream = File.Create(fullPath))
sx.Extract((UInt64)file.UnPackIndex, fileStream);
if (file.Time != null)
{
File.SetLastWriteTimeUtc(fullPath, (DateTime)file.Time);
}
}
else
{
Trace.TraceWarning($"File `{file.Name} already exists, skipping.");
}
}
return(this);
}
public IExtractor ExtractFiles(UInt64[] indices, string outputDirectory)
{
if (indices.Any(index => index >= (ulong)_Files.LongLength))
{
throw new ArgumentOutOfRangeException("An index given in `indices[]` array is out of range.");
}
if (!Directory.Exists(outputDirectory))
{
Directory.CreateDirectory(outputDirectory);
}
var streamToFileIndex = new Dictionary <ulong, ulong>();
var streamIndices = new List <ulong>();
ulong streamIndex = 0;
for (ulong i = 0; i < (ulong)_Files.LongLength; ++i)
{
if (!indices.Any() || Array.IndexOf(indices, i) != -1)
{
if (!processFile(outputDirectory, _Files[i]))
{
if (indices.Any())
{
streamIndices.Add(streamIndex);
}
}
}
if (!_Files[i].IsEmpty)
{
streamToFileIndex[streamIndex++] = i;
}
}
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo);
sx.ExtractMultiple(
streamIndices.ToArray(),
(ulong index) => {
SevenZipArchiveFile file = _Files[streamToFileIndex[index]];
string fullPath = Path.Combine(outputDirectory, PreserveDirectoryStructure ? file.Name : Path.GetFileName(file.Name));
Trace.TraceInformation($"File index {index}, filename: {file.Name}, file size: {file.Size}");
if (File.Exists(fullPath) && !OverwriteExistingFiles && !SkipExistingFiles)
{
throw new IOException($"File `{file.Name}` already exists.");
}
if (!File.Exists(fullPath) || OverwriteExistingFiles)
{
return(new FileStream(fullPath, FileMode.Create, FileAccess.Write, FileShare.None, 128 * 1024));
}
Trace.TraceWarning($"File `{file.Name} already exists, skipping.");
return(null);
},
(ulong index, Stream stream) => {
stream.Close();
SevenZipArchiveFile file = _Files[streamToFileIndex[index]];
string fullPath = Path.Combine(outputDirectory, file.Name);
if (file.Time != null)
{
File.SetLastWriteTimeUtc(fullPath, (DateTime)file.Time);
}
});
return(this);
}
public IExtractor ExtractFiles(UInt64[] indices, Func <ArchiveFile, Stream> onStreamRequest, Action <ArchiveFile, Stream> onStreamClose = null)
{
if (indices.Any(index => index >= (ulong)_Files.LongLength))
{
throw new ArgumentOutOfRangeException("An index given in `indices[]` array is out of range.");
}
// preprocess files and keep track of streams to decompress
var streamToFileIndex = new Dictionary <ulong, ulong>();
var streamIndices = new List <ulong>();
ulong streamIndex = 0;
for (ulong i = 0; i < (ulong)_Files.LongLength; ++i)
{
if (!indices.Any() || Array.IndexOf(indices, i) != -1)
{
if (_Files[i].IsEmpty)
{
using (Stream s = onStreamRequest(_Files[i]))
if (s != null)
{
onStreamClose?.Invoke(_Files[i], s);
}
}
else if (indices.Any())
{
streamIndices.Add(streamIndex);
}
}
if (!_Files[i].IsEmpty)
{
streamToFileIndex[streamIndex++] = i;
}
}
// no file to decompress
if (!streamToFileIndex.Any())
{
Trace.TraceWarning("ExtractFiles: No decoding required.");
return(this);
}
// progress provider
SevenZipProgressProvider szpp = null;
if (ProgressDelegate != null)
{
szpp = new SevenZipProgressProvider(_Files, indices, ProgressDelegate);
}
// extraction
Trace.TraceInformation("Extracting...");
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo, Password);
sx.ExtractMultiple(
streamIndices.ToArray(),
(ulong index) => onStreamRequest(_Files[streamToFileIndex[index]]),
(ulong index, Stream stream) => onStreamClose?.Invoke(_Files[streamToFileIndex[index]], stream),
szpp);
return(this);
}
public IExtractor ExtractFiles(UInt64[] indices, string outputDirectory)
{
if (indices.Any(index => index >= (ulong)_Files.LongLength))
{
throw new ArgumentOutOfRangeException("An index given in `indices[]` array is out of range.");
}
// preprocess files and keep track of streams to decompress
var streamToFileIndex = new Dictionary <ulong, ulong>();
var streamIndices = new List <ulong>();
ulong streamIndex = 0;
for (ulong i = 0; i < (ulong)_Files.LongLength; ++i)
{
if (!indices.Any() || Array.IndexOf(indices, i) != -1)
{
if (!preProcessFile(outputDirectory, _Files[i]))
{
streamIndices.Add(streamIndex);
}
}
if (!_Files[i].IsEmpty)
{
streamToFileIndex[streamIndex++] = i;
}
}
// no file to decompress
if (!streamIndices.Any())
{
Trace.TraceWarning("ExtractFiles: No decoding required.");
return(this);
}
// progress provider
SevenZipProgressProvider szpp = null;
if (ProgressDelegate != null)
{
szpp = new SevenZipProgressProvider(_Files, indices, ProgressDelegate);
}
// extraction
Trace.TraceInformation("Extracting...");
var sx = new SevenZipStreamsExtractor(stream, header.RawHeader.MainStreamsInfo, Password);
sx.ExtractMultiple(
streamIndices.ToArray(),
(ulong index) => {
SevenZipArchiveFile file = _Files[streamToFileIndex[index]];
string fullPath = Path.Combine(outputDirectory, PreserveDirectoryStructure ? file.Name : Path.GetFileName(file.Name));
Trace.TraceInformation($"File index {index}, filename: {file.Name}, file size: {file.Size}");
return(new FileStream(fullPath,
FileMode.Create,
FileAccess.Write,
FileShare.None,
bufferSize));
},
(ulong index, Stream stream) => {
stream.Close();
SevenZipArchiveFile file = _Files[streamToFileIndex[index]];
string fullPath = Path.Combine(outputDirectory, PreserveDirectoryStructure ? file.Name : Path.GetFileName(file.Name));
if (file.Time != null)
{
File.SetLastWriteTimeUtc(fullPath, (DateTime)file.Time);
}
},
szpp);
return(this);
}
