public void PutNextEntry(TarEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException("entry");
}
if (entry.TarHeader.Name.Length >= 100)
{
TarHeader header;
new TarHeader { TypeFlag = 0x4c, Name = header.Name + "././@LongLink", UserId = 0, GroupId = 0, GroupName = "", UserName = "", LinkName = "", Size = entry.TarHeader.Name.Length }.WriteHeader(this.blockBuffer);
this.buffer.WriteBlock(this.blockBuffer);
int nameOffset = 0;
while (nameOffset < entry.TarHeader.Name.Length)
{
Array.Clear(this.blockBuffer, 0, this.blockBuffer.Length);
TarHeader.GetAsciiBytes(entry.TarHeader.Name, nameOffset, this.blockBuffer, 0, 0x200);
nameOffset += 0x200;
this.buffer.WriteBlock(this.blockBuffer);
}
}
entry.WriteEntryHeader(this.blockBuffer);
this.buffer.WriteBlock(this.blockBuffer);
this.currBytes = 0L;
this.currSize = entry.IsDirectory ? 0L : entry.Size;
}
public TarEntry[] GetDirectoryEntries()
{
if (!((this.file != null) && Directory.Exists(this.file)))
{
return new TarEntry[0];
}
string[] fileSystemEntries = Directory.GetFileSystemEntries(this.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 (this.hasHitEOF)
{
return null;
}
if (this.currentEntry != null)
{
this.SkipToNextEntry();
}
byte[] block = this.tarBuffer.ReadBlock();
if (block == null)
{
this.hasHitEOF = true;
}
else if (TarBuffer.IsEndOfArchiveBlock(block))
{
this.hasHitEOF = true;
}
if (this.hasHitEOF)
{
this.currentEntry = null;
}
else
{
try
{
TarHeader header = new TarHeader();
header.ParseBuffer(block);
if (!header.IsChecksumValid)
{
throw new TarException("Header checksum is invalid");
}
this.entryOffset = 0L;
this.entrySize = header.Size;
StringBuilder builder = null;
if (header.TypeFlag == 0x4c)
{
byte[] buffer = new byte[0x200];
long entrySize = this.entrySize;
builder = new StringBuilder();
while (entrySize > 0L)
{
int length = this.Read(buffer, 0, (entrySize > buffer.Length) ? buffer.Length : ((int) entrySize));
if (length == -1)
{
throw new InvalidHeaderException("Failed to read long name entry");
}
builder.Append(TarHeader.ParseName(buffer, 0, length).ToString());
entrySize -= length;
}
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 0x67)
{
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 120)
{
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 0x56)
{
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
else if (((header.TypeFlag != 0x30) && (header.TypeFlag != 0)) && (header.TypeFlag != 0x35))
{
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
if (this.entryFactory == null)
{
this.currentEntry = new TarEntry(block);
if (builder != null)
{
this.currentEntry.Name = builder.ToString();
}
}
else
{
this.currentEntry = this.entryFactory.CreateEntry(block);
}
this.entryOffset = 0L;
this.entrySize = this.currentEntry.Size;
}
catch (InvalidHeaderException exception)
{
this.entrySize = 0L;
this.entryOffset = 0L;
this.currentEntry = null;
throw new InvalidHeaderException(string.Format("Bad header in record {0} block {1} {2}", this.tarBuffer.CurrentRecord, this.tarBuffer.CurrentBlock, exception.Message));
}
}
return this.currentEntry;
}
private void WriteEntryCore(TarEntry sourceEntry, bool recurse)
{
string path = null;
bool flag;
string file = sourceEntry.File;
TarEntry entry = (TarEntry) sourceEntry.Clone();
if (this.applyUserInfoOverrides)
{
entry.GroupId = this.groupId;
entry.GroupName = this.groupName;
entry.UserId = this.userId;
entry.UserName = this.userName;
}
this.OnProgressMessageEvent(entry, null);
if ((this.asciiTranslate && !entry.IsDirectory) && !IsBinary(file))
{
path = Path.GetTempFileName();
using (StreamReader reader = File.OpenText(file))
{
using (Stream stream = File.Create(path))
{
string str3;
goto Label_00EA;
Label_00A8:
str3 = reader.ReadLine();
if (str3 == null)
{
goto Label_00EF;
}
byte[] bytes = Encoding.ASCII.GetBytes(str3);
stream.Write(bytes, 0, bytes.Length);
stream.WriteByte(10);
Label_00EA:
flag = true;
goto Label_00A8;
Label_00EF:
stream.Flush();
}
}
entry.Size = new FileInfo(path).Length;
file = path;
}
string str4 = null;
if ((this.rootPath != null) && entry.Name.StartsWith(this.rootPath))
{
str4 = entry.Name.Substring(this.rootPath.Length + 1);
}
if (this.pathPrefix != null)
{
str4 = (str4 == null) ? (this.pathPrefix + "/" + entry.Name) : (this.pathPrefix + "/" + str4);
}
if (str4 != null)
{
entry.Name = str4;
}
this.tarOut.PutNextEntry(entry);
if (entry.IsDirectory)
{
if (recurse)
{
TarEntry[] directoryEntries = entry.GetDirectoryEntries();
for (int i = 0; i < directoryEntries.Length; i++)
{
this.WriteEntryCore(directoryEntries[i], recurse);
}
}
return;
}
using (Stream stream2 = File.OpenRead(file))
{
int num2;
byte[] buffer = new byte[0x8000];
goto Label_0284;
Label_0253:
num2 = stream2.Read(buffer, 0, buffer.Length);
if (num2 <= 0)
{
goto Label_02A0;
}
this.tarOut.Write(buffer, 0, num2);
Label_0284:
flag = true;
goto Label_0253;
}
Label_02A0:
if ((path != null) && (path.Length > 0))
{
File.Delete(path);
}
this.tarOut.CloseEntry();
}
public void WriteEntry(TarEntry sourceEntry, bool recurse)
{
if (sourceEntry == null)
{
throw new ArgumentNullException("sourceEntry");
}
if (this.isDisposed)
{
throw new ObjectDisposedException("TarArchive");
}
try
{
if (recurse)
{
TarHeader.SetValueDefaults(sourceEntry.UserId, sourceEntry.UserName, sourceEntry.GroupId, sourceEntry.GroupName);
}
this.WriteEntryCore(sourceEntry, recurse);
}
finally
{
if (recurse)
{
TarHeader.RestoreSetValues();
}
}
}
protected virtual void OnProgressMessageEvent(TarEntry entry, string message)
{
ProgressMessageHandler progressMessageEvent = this.ProgressMessageEvent;
if (progressMessageEvent != null)
{
progressMessageEvent(this, entry, message);
}
}
private void ExtractEntry(string destDir, TarEntry entry)
{
this.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);
}
else
{
EnsureDirectoryExists(Path.GetDirectoryName(directoryName));
bool flag = true;
FileInfo info = new FileInfo(directoryName);
if (info.Exists)
{
if (this.keepOldFiles)
{
this.OnProgressMessageEvent(entry, "Destination file already exists");
flag = false;
}
else if ((info.Attributes & FileAttributes.ReadOnly) != 0)
{
this.OnProgressMessageEvent(entry, "Destination file already exists, and is read-only");
flag = false;
}
}
if (flag)
{
bool flag2 = false;
Stream stream = File.Create(directoryName);
if (this.asciiTranslate)
{
flag2 = !IsBinary(directoryName);
}
StreamWriter writer = null;
if (flag2)
{
writer = new StreamWriter(stream);
}
byte[] buffer = new byte[0x8000];
while (true)
{
int count = this.tarIn.Read(buffer, 0, buffer.Length);
if (count <= 0)
{
if (flag2)
{
writer.Close();
}
else
{
stream.Close();
}
return;
}
if (flag2)
{
int index = 0;
for (int i = 0; i < count; 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, count);
}
}
}
}
}
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("toTest");
}
return toTest.Name.StartsWith(this.Name);
}
