//public FileCabinet(string filename)
//{
// ClearFileList();
// Filename = filename;
// TempDirectory = "";
//}
public void AddFile(string filename)
{
// try
{
FileInfo fi = new FileInfo(filename);
string filePart;
if (filename.ToLower().StartsWith(TempDirectory.ToLower()))
{
filePart = filename.Substring(TempDirectory.Length);
}
else
{
filePart = filename.Substring(filename.LastIndexOf(@"\") + 1);
}
if (!FileDirectory.ContainsKey(filePart))
{
FileEntry fe = new FileEntry(filePart, (int)fi.Length);
fe.Offset = currentOffset;
FileList.Add(fe);
FileDirectory.Add(filePart, fe);
currentOffset += fe.Size;
}
}
// catch
{
}
}
public void Extract(bool overwrite, string targetDirectory)
{
string data;
XmlDocument doc = new XmlDocument();
int headerSize = 0;
using (FileStream fs = File.OpenRead(Filename))
{
byte[] buffer = new byte[256];
fs.Read(buffer, 0, 255);
data = Encoding.UTF8.GetString(buffer);
int start = data.IndexOf("0x");
if (start == -1)
{
throw new SystemException(Language.GetLocalizedText(215, "Invalid File Format"));
}
headerSize = Convert.ToInt32(data.Substring(start, 10), 16);
fs.Seek(0, SeekOrigin.Begin);
buffer = new byte[headerSize];
fs.Read(buffer, 0, headerSize);
data = Encoding.UTF8.GetString(buffer);
doc.LoadXml(data);
XmlNode cab = doc["FileCabinet"];
XmlNode files = cab["Files"];
int offset = headerSize;
FileList.Clear();
foreach (XmlNode child in files.ChildNodes)
{
FileEntry fe = new FileEntry(child.Attributes["Name"].Value.ToString(), Convert.ToInt32(child.Attributes["Size"].Value));
fe.Offset = offset;
offset += fe.Size;
FileList.Add(fe);
}
foreach (FileEntry entry in FileList)
{
while (entry.Filename.StartsWith("\\"))
{
entry.Filename = entry.Filename.Substring(1);
}
string fullPath = TempDirectory + @"\" + entry.Filename;
string dir = fullPath.Substring(0, fullPath.LastIndexOf("\\"));
string file = fullPath.Substring(fullPath.LastIndexOf("\\")+1);
if (!string.IsNullOrEmpty(targetDirectory) && entry.Filename.Contains("\\"))
{
fullPath = targetDirectory + "\\" + file;
dir = targetDirectory;
}
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
if (overwrite || !File.Exists(fullPath))
{
FileStream fileOut = new FileStream(fullPath, FileMode.Create);
buffer = new byte[entry.Size];
fs.Seek(entry.Offset, SeekOrigin.Begin);
if (fs.Read(buffer, 0, entry.Size) != entry.Size)
{
throw new SystemException(Language.GetLocalizedText(214, "One of the files in the collection is missing, corrupt or inaccessable"));
}
fileOut.Write(buffer, 0, entry.Size);
fileOut.Close();
}
}
int x = offset;
fs.Close();
}
}
