public void PutNextEntry(TarEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException(nameof(entry));
}
if (entry.TarHeader.Name.Length >= 100)
{
TarHeader header = new TarHeader
{
TypeFlag = 0x4c,
UserId = 0, GroupId = 0,
GroupName = "",
UserName = "",
LinkName = "",
Size = entry.TarHeader.Name.Length
};
header.Name += "././@LongLink";
header.WriteHeader(_blockBuffer);
_buffer.WriteBlock(_blockBuffer);
int nameOffset = 0;
while (nameOffset < entry.TarHeader.Name.Length)
{
Array.Clear(_blockBuffer, 0, _blockBuffer.Length);
TarHeader.GetAsciiBytes(entry.TarHeader.Name, nameOffset, _blockBuffer, 0, 0x200);
nameOffset += 0x200;
_buffer.WriteBlock(_blockBuffer);
}
}
entry.WriteEntryHeader(_blockBuffer);
_buffer.WriteBlock(_blockBuffer);
_currBytes = 0L;
_currSize = entry.IsDirectory ? 0L : entry.Size;
}
public TarEntry[] GetDirectoryEntries()
{
if ((_file == null) || !Directory.Exists(_file))
{
return new TarEntry[0];
}
string[] fileSystemEntries = Directory.GetFileSystemEntries(_file);
TarEntry[] entryArray = new TarEntry[fileSystemEntries.Length];
for (int i = 0; i < fileSystemEntries.Length; i++)
{
entryArray[i] = CreateEntryFromFile(fileSystemEntries[i]);
}
return entryArray;
}
public TarEntry GetNextEntry()
{
if (_hasHitEof)
{
return(null);
}
if (_currentEntry != null)
{
SkipToNextEntry();
}
byte[] block = _tarBuffer.ReadBlock();
if (block == null)
{
_hasHitEof = true;
}
else if (TarBuffer.IsEndOfArchiveBlock(block))
{
_hasHitEof = true;
}
if (_hasHitEof)
{
_currentEntry = null;
}
else
{
try
{
TarHeader header = new TarHeader();
header.ParseBuffer(block);
if (!header.IsChecksumValid)
{
throw new TarException("Header checksum is invalid");
}
_entryOffset = 0L;
_entrySize = header.Size;
StringBuilder builder = null;
if (header.TypeFlag == 0x4c)
{
byte[] buffer = new byte[0x200];
long size = _entrySize;
builder = new StringBuilder();
while (size > 0L)
{
int length = Read(buffer, 0, (size > buffer.Length) ? buffer.Length : ((int)size));
if (length == -1)
{
throw new InvalidHeaderException("Failed to read long name entry");
}
builder.Append(TarHeader.ParseName(buffer, 0, length));
size -= length;
}
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 0x67)
{
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 120)
{
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 0x56)
{
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
else if (((header.TypeFlag != 0x30) && (header.TypeFlag != 0)) && (header.TypeFlag != 0x35))
{
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
if (_entryFactory == null)
{
_currentEntry = new TarEntry(block);
if (builder != null)
{
_currentEntry.Name = builder.ToString();
}
}
else
{
_currentEntry = _entryFactory.CreateEntry(block);
}
_entryOffset = 0L;
_entrySize = _currentEntry.Size;
}
catch (InvalidHeaderException exception)
{
_entrySize = 0L;
_entryOffset = 0L;
_currentEntry = null;
throw new InvalidHeaderException(string.Format("Bad header in record {0} block {1} {2}", _tarBuffer.CurrentRecord, _tarBuffer.CurrentBlock, exception.Message));
}
}
return(_currentEntry);
}
public TarEntry CreateEntryFromFile(string fileName)
{
return(TarEntry.CreateEntryFromFile(fileName));
}
public TarEntry CreateEntry(string name)
{
return(TarEntry.CreateTarEntry(name));
}
public TarEntry GetNextEntry()
{
if (_hasHitEof)
{
return null;
}
if (_currentEntry != null)
{
SkipToNextEntry();
}
byte[] block = _tarBuffer.ReadBlock();
if (block == null)
{
_hasHitEof = true;
}
else if (TarBuffer.IsEndOfArchiveBlock(block))
{
_hasHitEof = true;
}
if (_hasHitEof)
{
_currentEntry = null;
}
else
{
try
{
TarHeader header = new TarHeader();
header.ParseBuffer(block);
if (!header.IsChecksumValid)
{
throw new TarException("Header checksum is invalid");
}
_entryOffset = 0L;
_entrySize = header.Size;
StringBuilder builder = null;
if (header.TypeFlag == 0x4c)
{
byte[] buffer = new byte[0x200];
long size = _entrySize;
builder = new StringBuilder();
while (size > 0L)
{
int length = Read(buffer, 0, (size > buffer.Length) ? buffer.Length : ((int)size));
if (length == -1)
{
throw new InvalidHeaderException("Failed to read long name entry");
}
builder.Append(TarHeader.ParseName(buffer, 0, length));
size -= length;
}
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 0x67)
{
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 120)
{
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 0x56)
{
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
else if (((header.TypeFlag != 0x30) && (header.TypeFlag != 0)) && (header.TypeFlag != 0x35))
{
SkipToNextEntry();
block = _tarBuffer.ReadBlock();
}
if (_entryFactory == null)
{
_currentEntry = new TarEntry(block);
if (builder != null)
{
_currentEntry.Name = builder.ToString();
}
}
else
{
_currentEntry = _entryFactory.CreateEntry(block);
}
_entryOffset = 0L;
_entrySize = _currentEntry.Size;
}
catch (InvalidHeaderException exception)
{
_entrySize = 0L;
_entryOffset = 0L;
_currentEntry = null;
throw new InvalidHeaderException(string.Format("Bad header in record {0} block {1} {2}", _tarBuffer.CurrentRecord, _tarBuffer.CurrentBlock, exception.Message));
}
}
return _currentEntry;
}
private void WriteEntryCore(TarEntry sourceEntry, bool recurse)
{
string path = null;
string file = sourceEntry.File;
TarEntry entry = (TarEntry)sourceEntry.Clone();
if (_applyUserInfoOverrides)
{
entry.GroupId = _groupId;
entry.GroupName = _groupName;
entry.UserId = _userId;
entry.UserName = _userName;
}
OnProgressMessageEvent(entry, null);
if ((_asciiTranslate && !entry.IsDirectory) && !IsBinary(file))
{
path = Path.GetTempFileName();
using (StreamReader reader = File.OpenText(file))
{
using (Stream stream = File.Create(path))
{
Label_0088:
string str3 = reader.ReadLine();
if (str3 != null)
{
byte[] bytes = Encoding.ASCII.GetBytes(str3);
stream.Write(bytes, 0, bytes.Length);
stream.WriteByte(10);
goto Label_0088;
}
stream.Flush();
}
}
entry.Size = new FileInfo(path).Length;
file = path;
}
string str4 = null;
if ((_rootPath != null) && entry.Name.StartsWith(_rootPath))
{
str4 = entry.Name.Substring(_rootPath.Length + 1);
}
if (_pathPrefix != null)
{
str4 = (str4 == null) ? (_pathPrefix + "/" + entry.Name) : (_pathPrefix + "/" + str4);
}
if (str4 != null)
{
entry.Name = str4;
}
_tarOut.PutNextEntry(entry);
if (entry.IsDirectory)
{
if (recurse)
{
TarEntry[] directoryEntries = entry.GetDirectoryEntries();
foreach (TarEntry t in directoryEntries)
{
WriteEntryCore(t, true);
}
return;
}
return;
}
using (Stream stream2 = File.OpenRead(file))
{
byte[] buffer = new byte[0x8000];
while (true)
{
int count = stream2.Read(buffer, 0, buffer.Length);
if (count <= 0)
{
goto Label_01F6;
}
_tarOut.Write(buffer, 0, count);
}
}
Label_01F6:
if (!string.IsNullOrEmpty(path))
{
File.Delete(path);
}
_tarOut.CloseEntry();
}
public void WriteEntry(TarEntry sourceEntry, bool recurse)
{
if (sourceEntry == null)
{
throw new ArgumentNullException(nameof(sourceEntry));
}
if (_isDisposed)
{
throw new ObjectDisposedException("TarArchive");
}
try
{
if (recurse)
{
TarHeader.SetValueDefaults(sourceEntry.UserId, sourceEntry.UserName, sourceEntry.GroupId, sourceEntry.GroupName);
}
WriteEntryCore(sourceEntry, recurse);
}
finally
{
if (recurse)
{
TarHeader.RestoreSetValues();
}
}
}
protected virtual void OnProgressMessageEvent(TarEntry entry, string message)
{
ProgressMessageHandler progressMessageEvent = ProgressMessageEvent;
if (progressMessageEvent != null)
{
progressMessageEvent(this, entry, message);
}
}
private void ExtractEntry(string destDir, TarEntry entry)
{
int num;
OnProgressMessageEvent(entry, null);
string name = entry.Name;
if (Path.IsPathRooted(name))
{
name = name.Substring(Path.GetPathRoot(name).Length);
}
name = name.Replace('/', Path.DirectorySeparatorChar);
string directoryName = Path.Combine(destDir, name);
if (entry.IsDirectory)
{
EnsureDirectoryExists(directoryName);
return;
}
EnsureDirectoryExists(Path.GetDirectoryName(directoryName));
bool flag = true;
FileInfo info = new FileInfo(directoryName);
if (info.Exists)
{
if (_keepOldFiles)
{
OnProgressMessageEvent(entry, "Destination file already exists");
flag = false;
}
else if ((info.Attributes & FileAttributes.ReadOnly) != 0)
{
OnProgressMessageEvent(entry, "Destination file already exists, and is read-only");
flag = false;
}
}
if (!flag)
{
return;
}
bool flag2 = false;
Stream stream = File.Create(directoryName);
if (_asciiTranslate)
{
flag2 = !IsBinary(directoryName);
}
StreamWriter writer = null;
if (flag2)
{
writer = new StreamWriter(stream);
}
byte[] buffer = new byte[0x8000];
Label_00DF:
num = _tarIn.Read(buffer, 0, buffer.Length);
if (num > 0)
{
if (flag2)
{
int index = 0;
for (int i = 0; i < num; i++)
{
if (buffer[i] == 10)
{
string str4 = Encoding.ASCII.GetString(buffer, index, i - index);
writer.WriteLine(str4);
index = i + 1;
}
}
}
else
{
stream.Write(buffer, 0, num);
}
goto Label_00DF;
}
if (flag2)
{
writer.Close();
}
else
{
stream.Close();
}
}
private void WriteEntryCore(TarEntry sourceEntry, bool recurse)
{
string path = null;
string file = sourceEntry.File;
TarEntry entry = (TarEntry)sourceEntry.Clone();
if (_applyUserInfoOverrides)
{
entry.GroupId = _groupId;
entry.GroupName = _groupName;
entry.UserId = _userId;
entry.UserName = _userName;
}
OnProgressMessageEvent(entry, null);
if ((_asciiTranslate && !entry.IsDirectory) && !IsBinary(file))
{
path = Path.GetTempFileName();
using (StreamReader reader = File.OpenText(file))
{
using (Stream stream = File.Create(path))
{
Label_0088:
string str3 = reader.ReadLine();
if (str3 != null)
{
byte[] bytes = Encoding.ASCII.GetBytes(str3);
stream.Write(bytes, 0, bytes.Length);
stream.WriteByte(10);
goto Label_0088;
}
stream.Flush();
}
}
entry.Size = new FileInfo(path).Length;
file = path;
}
string str4 = null;
if ((_rootPath != null) && entry.Name.StartsWith(_rootPath))
{
str4 = entry.Name.Substring(_rootPath.Length + 1);
}
if (_pathPrefix != null)
{
str4 = (str4 == null) ? (_pathPrefix + "/" + entry.Name) : (_pathPrefix + "/" + str4);
}
if (str4 != null)
{
entry.Name = str4;
}
_tarOut.PutNextEntry(entry);
if (entry.IsDirectory)
{
if (recurse)
{
TarEntry[] directoryEntries = entry.GetDirectoryEntries();
foreach (TarEntry t in directoryEntries)
{
WriteEntryCore(t, true);
}
return;
}
return;
}
using (Stream stream2 = File.OpenRead(file))
{
byte[] buffer = new byte[0x8000];
while (true)
{
int count = stream2.Read(buffer, 0, buffer.Length);
if (count <= 0)
{
goto Label_01F6;
}
_tarOut.Write(buffer, 0, count);
}
}
Label_01F6:
if (!string.IsNullOrEmpty(path))
{
File.Delete(path);
}
_tarOut.CloseEntry();
}
private void ExtractEntry(string destDir, TarEntry entry)
{
int num;
OnProgressMessageEvent(entry, null);
string name = entry.Name;
if (Path.IsPathRooted(name))
{
name = name.Substring(Path.GetPathRoot(name).Length);
}
name = name.Replace('/', Path.DirectorySeparatorChar);
string directoryName = Path.Combine(destDir, name);
if (entry.IsDirectory)
{
EnsureDirectoryExists(directoryName);
return;
}
EnsureDirectoryExists(Path.GetDirectoryName(directoryName));
bool flag = true;
FileInfo info = new FileInfo(directoryName);
if (info.Exists)
{
if (_keepOldFiles)
{
OnProgressMessageEvent(entry, "Destination file already exists");
flag = false;
}
else if ((info.Attributes & FileAttributes.ReadOnly) != 0)
{
OnProgressMessageEvent(entry, "Destination file already exists, and is read-only");
flag = false;
}
}
if (!flag)
{
return;
}
bool flag2 = false;
Stream stream = File.Create(directoryName);
if (_asciiTranslate)
{
flag2 = !IsBinary(directoryName);
}
StreamWriter writer = null;
if (flag2)
{
writer = new StreamWriter(stream);
}
byte[] buffer = new byte[0x8000];
Label_00DF:
num = _tarIn.Read(buffer, 0, buffer.Length);
if (num > 0)
{
if (flag2)
{
int index = 0;
for (int i = 0; i < num; i++)
{
if (buffer[i] == 10)
{
string str4 = Encoding.ASCII.GetString(buffer, index, i - index);
writer.WriteLine(str4);
index = i + 1;
}
}
}
else
{
stream.Write(buffer, 0, num);
}
goto Label_00DF;
}
if (flag2)
{
writer.Close();
}
else
{
stream.Close();
}
}
public static TarEntry CreateTarEntry(string name)
{
TarEntry entry = new TarEntry();
NameTarHeader(entry._header, name);
return entry;
}
public static TarEntry CreateEntryFromFile(string fileName)
{
TarEntry entry = new TarEntry();
entry.GetFileTarHeader(entry._header, fileName);
return entry;
}
public bool IsDescendent(TarEntry toTest)
{
if (toTest == null)
{
throw new ArgumentNullException(nameof(toTest));
}
return toTest.Name.StartsWith(Name);
}
