/// <summary>
/// Method to open an existing storage file
/// </summary>
/// <param name="_filename">Full path of Zip file to open</param>
/// <param name="_access">File access mode as used in FileStream constructor</param>
/// <returns>A valid FwkZip object</returns>
static FwkZip Open(string _filename, FileAccess _access)
{
Stream stream = (Stream) new FileStream(_filename, FileMode.Open, _access == FileAccess.Read ? FileAccess.Read : FileAccess.ReadWrite);
FwkZip zip = Open(stream, _access);
zip.FileName = _filename;
return(zip);
}
/// <summary>
/// Method to create a new zip storage in a stream
/// </summary>
/// <param name="_stream"></param>
/// <param name="_comment"></param>
/// <returns>A valid FwkZip object</returns>
static FwkZip Create(Stream _stream, string _comment)
{
FwkZip zip = new FwkZip();
zip.Comment = _comment;
zip.ZipFileStream = _stream;
zip.Access = FileAccess.Write;
return(zip);
}
/// <summary>
/// Removes one of many files in storage. It creates a new Zip file.
/// </summary>
/// <param name="_zip">Reference to the current Zip object</param>
/// <param name="_zfes">List of Entries to remove from storage</param>
/// <returns>True if success, false if not</returns>
/// <remarks>This method only works for storage of type FileStream</remarks>
public static bool RemoveEntries(ref FwkZip _zip, List <ZipFileEntry> _zfes)
{
if (!(_zip.ZipFileStream is FileStream))
{
throw new InvalidOperationException("RemoveEntries is allowed just over streams of type FileStream");
}
//Get full list of entries
List <ZipFileEntry> fullList = _zip.ReadCentralDir();
//In order to delete we need to create a copy of the zip file excluding the selected items
string tempZipName = Path.GetTempFileName();
string tempEntryName = Path.GetTempFileName();
try
{
FwkZip tempZip = FwkZip.Create(tempZipName, string.Empty);
foreach (ZipFileEntry zfe in fullList)
{
if (!_zfes.Contains(zfe))
{
if (_zip.ExtractFile(zfe, tempEntryName))
{
tempZip.AddFile(zfe.Method, tempEntryName, zfe.FilenameInZip, zfe.Comment);
}
}
}
_zip.Close();
tempZip.Close();
File.Delete(_zip.FileName);
File.Move(tempZipName, _zip.FileName);
_zip = FwkZip.Open(_zip.FileName, _zip.Access);
}
catch
{
return(false);
}
finally
{
if (File.Exists(tempZipName))
{
File.Delete(tempZipName);
}
if (File.Exists(tempEntryName))
{
File.Delete(tempEntryName);
}
}
return(true);
}
/// <summary>
/// Method to create a new storage file
/// </summary>
/// <param name="_filename">Full path of Zip file to create</param>
/// <param name="_comment">General comment for Zip file</param>
/// <returns>A valid FwkZip object</returns>
public static FwkZip Create(string _filename, string _comment)
{
Stream stream = new FileStream(_filename, FileMode.Create, FileAccess.ReadWrite);
FwkZip zip = Create(stream, _comment);
zip.Comment = _comment;
zip.FileName = _filename;
return(zip);
}
/// <summary>
/// Crea el archivo Zip en la ruta extractPath
/// </summary>
/// <param name="zipFileFullName">Nombre comppleto del archivo zip</param>
/// <param name="extractPath">ruta destino de la extracción</param>
public static void Extract(String zipFileFullName, string extractPath)
{
////buscar el archivo zip
//StoderFiles file = ChekUpdaterDAC.Get_Zip(lastVersion, appGuid);
////Obtener nombre sin .zip
//String zipFileName = file.Title.Substring(0, file.Title.Length - 4);
//zipFileName = zipFileName + "_" + HelpersFunctions.ToDDMMYYYY(DateTime.Now, '-') + ".zip";
//Guardo
//HelpersFunctions.SaveBinaryFile(zipFileName, file.ZipFile);
StringBuilder strRes = new StringBuilder();
FileInfo zipFileInfo = new FileInfo(zipFileFullName);
//zipFileName = zipFileInfo.FullName;
// extractPath = Path.Combine(Environment.CurrentDirectory, "temp");
//if (System.IO.Directory.Exists(extractPath) == false)
// System.IO.Directory.CreateDirectory(extractPath);
// Opens existing zip file
FwkZip zip = FwkZip.Open(zipFileFullName, FileAccess.Read);
// Read all directory contents
List <FwkZip.ZipFileEntry> dir = zip.ReadCentralDir();
bool result;
string path;
try
{
foreach (FwkZip.ZipFileEntry entry in dir)
{
path = Path.Combine(extractPath, Path.GetFileName(entry.FilenameInZip));
result = zip.ExtractFile(entry, path);
strRes.AppendLine(path + (result ? "" : " (error)"));
}
zip.Close();
}
catch (Exception ex)
{
zip.Close();
throw ex;
}
}
/// <summary>
/// Genera un archivo zip de todoslos archivos pasados por parametro
/// para abrirlo en memoria se puede usar Byte[] zipFile = FileFunctions.OpenBinaryFile(zipFullName);
/// </summary>
/// <param name="selectedFilesToZip">Lista de archivos a comprimir</param>
/// <param name="zipFullName">Nombre del archivo zip</param>
/// <returns></returns>
public static FileInfo Compress(String[] selectedFilesToZip, string zipFullName)
{
//string tempFolder = System.IO.Path.Combine(Environment.CurrentDirectory, "temp");
//if (Directory.Exists(tempFolder))
// DeleteDirectory(tempFolder);
//Directory.CreateDirectory(tempFolder);
//copy selected files to temp folder
//foreach (string filename in selectedFilesToZip)
//{
// FileInfo f = new FileInfo(filename);
// f.CopyTo(tempFolder + @"\" + f.Name);
//}
//string zipFullName = System.IO.Path.Combine(tempFolder, zipFileName);
FwkZip zip = FwkZip.Create(zipFullName, "Generated pelsoft");
// Stores all the files into the zip file
foreach (string file in selectedFilesToZip)
{
zip.AddFile(FwkZip.Compression.Deflate, file, Path.GetFileName(file), "");
}
//crear binario con el zip
using (MemoryStream readme = new MemoryStream(
System.Text.Encoding.UTF8.GetBytes(string.Format("{0}\r\nThis file has been {1} using the ZipStorer class, by Jaime Olivares.",
DateTime.Now, "created"))))
{
// Stores a new file directly from the stream
zip.AddStream(FwkZip.Compression.Store, "readme.txt", readme, DateTime.Now, "Please read");
}
zip.Close();
FileInfo f = new FileInfo(zipFullName);
return(f);
//Byte[] zipFile = FileFunctions.OpenBinaryFile(zipFullName);
//return zipFile;
}
/// <summary>
/// Method to open an existing storage from stream
/// </summary>
/// <param name="_stream">Already opened stream with zip contents</param>
/// <param name="_access">File access mode for stream operations</param>
/// <returns>A valid FwkZip object</returns>
static FwkZip Open(Stream _stream, FileAccess _access)
{
if (!_stream.CanSeek && _access != FileAccess.Read)
{
throw new InvalidOperationException("Stream cannot seek");
}
FwkZip zip = new FwkZip();
//zip.FileName = _filename;
zip.ZipFileStream = _stream;
zip.Access = _access;
if (zip.ReadFileInfo())
{
return(zip);
}
throw new System.IO.InvalidDataException();
}
