76 lines
2.2 KiB
C#
76 lines
2.2 KiB
C#
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using System;
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using System.IO;
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using ICSharpCode.SharpZipLib.Zip;
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namespace RyzStudio.IO
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{
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public class SharpZipLib
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{
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/// <summary>
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/// Is zip file encrypted
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/// </summary>
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/// <param name="fn">Filename</param>
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/// <returns>Is encrypted</returns>
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public static bool IsZipEncrypted(string fn)
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{
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bool ret_val = false;
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try
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{
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ZipInputStream zipIn = new ZipInputStream(System.IO.File.OpenRead(fn));
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ZipEntry theEntry = null;
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while ((theEntry = zipIn.GetNextEntry()) != null)
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{
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if (theEntry.IsCrypted)
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{
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ret_val = true;
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}
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break;
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}
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zipIn.Close();
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}
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catch
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{
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// do nothing
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}
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return ret_val;
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}
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public static void AddFile(ZipOutputStream zipstream, string filename, string prefixpath = null)
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{
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byte[] buffer = new byte[4096];
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string f1 = "";
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if (prefixpath != null)
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{
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f1 = Path.GetDirectoryName(filename).TrimEnd('\\') + "\\";
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f1 = f1.Replace(prefixpath, "").TrimEnd('\\') + "\\";
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f1 = f1 + Path.GetFileName(filename);
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f1 = f1.TrimStart('\\');
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}
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ZipEntry entry = new ZipEntry(f1);
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entry.DateTime = DateTime.Now;
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zipstream.PutNextEntry(entry);
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FileStream fs = File.OpenRead(filename);
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int sourceBytes;
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do
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{
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sourceBytes = fs.Read(buffer, 0, buffer.Length);
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zipstream.Write(buffer, 0, sourceBytes);
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}
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while (sourceBytes > 0);
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}
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public static void AddFolder(ZipOutputStream zipstream, string folderpath, string prefixpath = null)
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{
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foreach (string fn in Directory.GetFiles(folderpath, "*.*", System.IO.SearchOption.AllDirectories))
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{
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AddFile(zipstream, fn, prefixpath);
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}
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}
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}
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}
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