| public ExtractFile ( ZipFileEntry zfe, Stream stream ) : bool | ||
| zfe | ZipFileEntry | Entry information of file to extract |
| stream | Stream | Stream to store the uncompressed data |
| return | bool | |
/// <summary>
/// This methods extract a zip file in the given directory
/// </summary>
/// <param name="filePath"></param>
/// <param name="targetDir"></param>
public static bool ExtractAll(string filePath, string targetDir)
{
if (string.IsNullOrEmpty(filePath) || !File.Exists(filePath))
{
return(false);
}
if (!CreateDirectory(targetDir))
{
return(false);
}
bool result = true;
try {
// Opens existing zip file
using (ZipStorer zip = ZipStorer.Open(filePath, FileAccess.Read)) {
// Extract all files in target directory
foreach (ZipStorer.ZipFileEntry entry in zip.ReadCentralDir())
{
var outputPath = Path.Combine(targetDir, entry.FilenameInZip);
if (!CreateDirectory(Path.GetDirectoryName(outputPath)))
{
return(false);
}
result = result && zip.ExtractFile(entry, outputPath);
}
}
} catch (Exception e) {
ErrorHandler.ShowErrors(e, "Unzipping " + Path.GetFileName(filePath));
result = false;
}
return(result);
}
/// <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 ZipStorer 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 {
ZipStorer tempZip = 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 = 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);
}