public static GZipResult Compress(FileInfo[] files, string lpBaseFolder, string lpDestFolder, string zipFileName, bool deleteTempFile)
{
GZipResult result = new GZipResult();
try
{
if (!lpDestFolder.EndsWith(@"\"))
{
lpDestFolder = lpDestFolder + @"\";
}
string str = lpDestFolder + zipFileName + ".tmp";
string str2 = lpDestFolder + zipFileName;
result.TempFile = str;
result.ZipFile = str2;
if ((files == null) || (files.Length <= 0))
{
return(result);
}
smethod_3(files, lpBaseFolder, str, result);
if (result.FileCount > 0)
{
smethod_2(str, str2, result);
}
if (deleteTempFile)
{
File.Delete(str);
result.TempFileDeleted = true;
}
}
catch
{
result.Errors = true;
}
return(result);
}
private static void smethod_2(string string_0, string string_1, GZipResult gzipResult_0)
{
FileStream stream = null;
FileStream stream2 = null;
GZipStream stream3 = null;
try
{
stream = new FileStream(string_1, FileMode.Create, FileAccess.Write, FileShare.None);
stream3 = new GZipStream(stream, CompressionMode.Compress, true);
stream2 = new FileStream(string_0, FileMode.Open, FileAccess.Read, FileShare.Read);
byte[] buffer = new byte[stream2.Length];
stream2.Read(buffer, 0, buffer.Length);
stream2.Close();
stream2 = null;
stream3.Write(buffer, 0, buffer.Length);
gzipResult_0.ZipFileSize = stream.Length;
gzipResult_0.CompressionPercent = smethod_8(gzipResult_0.TempFileSize, gzipResult_0.ZipFileSize);
}
catch
{
gzipResult_0.Errors = true;
}
finally
{
if (stream3 != null)
{
stream3.Close();
stream3 = null;
}
if (stream != null)
{
stream.Close();
stream = null;
}
if (stream2 != null)
{
stream2.Close();
stream2 = null;
}
}
}
private static FileStream smethod_7(string string_0, string string_1, GZipResult gzipResult_0)
{
FileStream stream = null;
GZipStream stream2 = null;
FileStream stream3 = null;
FileStream stream4 = null;
byte[] buffer = new byte[0x1000];
int count = 0;
try
{
stream = new FileStream(string_0, FileMode.Open, FileAccess.Read, FileShare.Read);
gzipResult_0.ZipFileSize = stream.Length;
stream3 = new FileStream(string_1, FileMode.Create, FileAccess.Write, FileShare.None);
stream2 = new GZipStream(stream, CompressionMode.Decompress, true);
goto Label_005C;
Label_0042:
if (count == 0x1000)
{
goto Label_005C;
}
goto Label_00AE;
Label_004F:
stream3.Write(buffer, 0, count);
goto Label_0042;
Label_005C:
count = stream2.Read(buffer, 0, 0x1000);
if (count == 0)
{
goto Label_0042;
}
goto Label_004F;
}
catch
{
gzipResult_0.Errors = true;
}
finally
{
if (stream2 != null)
{
stream2.Close();
stream2 = null;
}
if (stream3 != null)
{
stream3.Close();
stream3 = null;
}
if (stream != null)
{
stream.Close();
stream = null;
}
}
Label_00AE:
stream4 = new FileStream(string_1, FileMode.Open, FileAccess.Read, FileShare.None);
if (stream4 != null)
{
gzipResult_0.TempFileSize = stream4.Length;
}
return(stream4);
}
public static GZipResult Decompress(string lpSrcFolder, string lpDestFolder, string zipFileName, bool deleteTempFile, bool writeFiles, string addExtension, Hashtable htFiles, int bufferSize)
{
// This item is obfuscated and can not be translated.
GZipResult result = new GZipResult();
if (!lpSrcFolder.EndsWith(@"\"))
{
lpSrcFolder = lpSrcFolder + @"\";
}
if (!lpDestFolder.EndsWith(@"\"))
{
lpDestFolder = lpDestFolder + @"\";
}
string str = lpSrcFolder + zipFileName + ".tmp";
string str2 = lpSrcFolder + zipFileName;
result.TempFile = str;
result.ZipFile = str2;
string str3 = null;
string str4 = null;
string path = null;
GZipFileInfo info = null;
FileStream stream = null;
ArrayList list = new ArrayList();
bool flag = false;
if (string.IsNullOrEmpty(addExtension))
{
addExtension = string.Empty;
}
else if (!addExtension.StartsWith("."))
{
addExtension = "." + addExtension;
}
try
{
stream = smethod_7(str2, str, result);
if (stream != null)
{
while (stream.Position != stream.Length)
{
str3 = null;
while (!string.IsNullOrEmpty(str3))
{
if (0 == 0)
{
goto Label_00EF;
}
str3 = smethod_4(stream);
}
goto Label_00C4;
Label_00EF:
if (!string.IsNullOrEmpty(str3))
{
info = new GZipFileInfo();
if (!info.ParseFileInfo(str3) || (info.Length <= 0))
{
continue;
}
list.Add(info);
str4 = lpDestFolder + info.RelativePath;
path = smethod_6(str4);
info.LocalPath = str4;
flag = false;
if ((htFiles == null) || htFiles.ContainsKey(info.RelativePath))
{
info.RestoreRequested = true;
flag = writeFiles;
}
if (flag)
{
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
info.Restored = smethod_5(stream, info.Length, str4 + addExtension, bufferSize);
continue;
}
stream.Position += info.Length;
}
}
}
}
catch
{
result.Errors = true;
}
finally
{
if (stream != null)
{
stream.Close();
stream = null;
}
}
try
{
if (deleteTempFile)
{
File.Delete(str);
result.TempFileDeleted = true;
}
}
catch
{
result.Errors = true;
}
result.FileCount = list.Count;
result.Files = new GZipFileInfo[list.Count];
list.CopyTo(result.Files);
return(result);
}
