public static void CopyEntries(ZipFile from, ZipOutputStream to, FilterEntryMethod filter)
{
foreach (ZipEntry entry in new EnumerationAdapter(new EnumerationMethod(from.entries)))
{
if (filter == null || filter(entry))
{
java.io.InputStream s = from.getInputStream(entry);
try
{
to.putNextEntry(entry);
try
{
CopyStream(s, to);
}
finally
{
to.closeEntry();
}
}
finally
{
s.close();
}
}
}
}
public static ZipFile UpdateZipFile(ZipFile file, FilterEntryMethod filter, string[] newFiles)
{
string prev = file.getName();
string tmp = System.IO.Path.GetTempFileName();
ZipOutputStream to = new ZipOutputStream(new java.io.FileOutputStream(tmp));
try
{
CopyEntries(file, to, filter);
// add entries here
if (newFiles != null)
{
foreach (string f in newFiles)
{
ZipEntry z = new ZipEntry(f.Remove(0, System.IO.Path.GetPathRoot(f).Length));
z.setMethod(ZipEntry.DEFLATED);
to.putNextEntry(z);
try
{
java.io.FileInputStream s = new java.io.FileInputStream(f);
try
{
CopyStream(s, to);
}
finally
{
s.close();
}
}
finally
{
to.closeEntry();
}
}
}
}
finally
{
to.close();
}
file.close();
// now replace the old file with the new one
System.IO.File.Copy(tmp, prev, true);
System.IO.File.Delete(tmp);
return(new ZipFile(prev));
}
/// <summary>
/// Extract the content of a zip file passed as a Base64 string
/// </summary>
/// <param name="b64String"></param>
/// <param name="path"></param>
/// <param name="filter"></param>
public static void ExtractZipFileFromBase64String(
string b64String,
string path,
FilterEntryMethod filter = null)
{
string tempZipFile = TempFile.GetTempFileName("zip"); // temp file for zip file
FileUtil.WriteFileFromBase64String(b64String, tempZipFile);
ZipFile zf = new ZipFile(tempZipFile);
ExtractZipFile(zf, path, filter);
FileUtil.DeleteFile(tempZipFile);
return;
}
/// <summary>
/// Extract files from a ZipFile to a file folder
/// </summary>
/// <param name="file"></param>
/// <param name="path"></param>
/// <param name="filter"></param>
public static void ExtractZipFile(
ZipFile file,
string path,
FilterEntryMethod filter = null)
{
foreach (ZipEntry entry in new EnumerationAdapter(new EnumerationMethod(file.entries)))
{
if (!entry.isDirectory())
{
if ((filter == null || filter(entry)))
{
java.io.InputStream s = file.getInputStream(entry);
try
{
string fname = System.IO.Path.GetFileName(entry.getName());
string newpath = System.IO.Path.Combine(path, System.IO.Path.GetDirectoryName(entry.getName()));
System.IO.Directory.CreateDirectory(newpath);
java.io.FileOutputStream dest = new java.io.FileOutputStream(System.IO.Path.Combine(newpath, fname));
try
{
CopyStream(s, dest);
}
finally
{
dest.close();
}
}
finally
{
s.close();
}
}
}
}
}
