/// <summary>
/// Adds a file to the zip
/// </summary>
/// <param name="fileName">input file name</param>
public void AddFile(string fileName)
{
using (IOReader reader = new IOReader(File.OpenRead(fileName)))
{
byte[] fileBuf = reader.ReadAllBytes();
CentralDirectoryEntry entry = new CentralDirectoryEntry();
entry.FileName = FixupPath(fileName);
entry.FileSize = (uint)fileBuf.Length;
entry.FileData = fileBuf;
ZipFile file = new ZipFile(entry, this.m_lZipDirectory.Count + 1);
this.m_lZipDirectory.Add(file);
this.m_lZipDirectory.Sort();
}
}
/// <summary>
/// Unserialize zip
/// </summary>
/// <param name="input">input stream</param>
/// <returns>operation outcome</returns>
public bool UnSerialize()
{
try
{
/// Start at the beginning of the EOF
this.m_zipReader.Seek(-0x36, SeekOrigin.End);
/// Get central directory info from the eof header
CentralDirectoryRecordEOF eof = new CentralDirectoryRecordEOF();
eof.UnSerialize(this.m_zipReader);
this.m_lZipDirectory = new List<ZipFile>(eof.TotalCDirEntries);
///Seek to the beginning of the zip to read the preload local file header
//this.m_zipReader.Seek(0, SeekOrigin.Begin);
//LocalFileHeader preloadHdr = new LocalFileHeader();
//preloadHdr.UnSerialize(this.m_zipReader);
//m_preloadSection = new PreloadSection(new MemoryStream(preloadHdr.FileData));
/// Read preload
//Thread preloadWorker = new Thread(new ThreadStart(m_preloadSection.UnSerialize));
//preloadWorker.Start();
///Parse Central Directory
this.m_zipReader.Seek((int)eof.StartOfCDir, SeekOrigin.Begin);
ZipFile file;
CentralDirectoryEntry entry;
for (int i = 1; i < eof.TotalCDirEntries; i++)
{
entry = new CentralDirectoryEntry(this.m_zipReader);
file = new ZipFile(entry, i);
this.m_lZipDirectory.Add(file);
}
GetGame();
return true;
}
catch { return false; }
}
/// <summary>
/// Gets exact start of a file without the header and padding
/// </summary>
/// <param name="entry">central directory</param>
/// <returns>offset of file data</returns>
private int GetExactFileStart(CentralDirectoryEntry entry)
{
return (int)(entry.OffsetOfLocalFile + entry.ExtraFieldLength + 30 + entry.FileName.Length);
}
/// <summary>
/// Creates a zip
/// </summary>
/// <param name="dir">directory to construct from</param>
/// <param name="output">output zip</param>
public void CreateZip(string dir, string output)
{
string[] fileEntries = Directory.GetFiles(dir,"*.*",SearchOption.AllDirectories);
CentralDirectoryEntry entry;
ZipFile file;
this.m_lZipDirectory = new List<ZipFile>(fileEntries.Length);
foreach (string fileName in fileEntries)
{
using (IOReader reader = new IOReader(File.OpenRead(fileName)))
{
entry = new CentralDirectoryEntry();
entry.FileData = reader.ReadAllBytes();
entry.FileName = fileName.Substring(dir.Length + 1);
file = new ZipFile(entry);
this.m_lZipDirectory.Add(file);
}
}
GetGame();
this.m_lZipDirectory.Sort();
Save(output, false);
}
