void writeTextToFile(CompressMethod compressMethod)
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
compressMethod(saveFileDialog.FileName, richTextBox1.Text);
}
}
private static string AddExtensionIfMissing(string outputPath, CompressMethod method)
{
if (!outputPath.Contains(".zip") && !outputPath.Contains(".7z"))
{
switch (method)
{
case CompressMethod.SevenZip: return outputPath += ".7z";
case CompressMethod.Zip: return outputPath += ".zip";
}
}
return outputPath;
}
/// <summary>
/// Compresses object by using GZip or Deflate algorithm.
/// </summary>
/// <param name="value">The object to compress.</param>
/// <param name="method">The algorithm to use.</param>
/// <returns>A byte array representing compressed object.</returns>
public static byte[] Compress(this byte[] bytes, CompressMethod method = CompressMethod.GZip)
{
using (var outputStream = new MemoryStream())
{
switch (method)
{
case CompressMethod.GZip: return(GZipCompress(bytes, outputStream));
case CompressMethod.Deflate: return(DeflateCompress(bytes, outputStream));
default: return(null);
}
}
}
public CompressContent(HttpContent content, CompressMethod compressionMethod)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
this._originalContent = content;
this._compressionMethod = compressionMethod;
foreach (var header in this._originalContent.Headers)
{
this.Headers.TryAddWithoutValidation(header.Key, header.Value);
}
this.Headers.ContentEncoding.Add(this._compressionMethod.ToString().ToLowerInvariant());
}
/// <summary>
/// Decompresses object by using GZip or Deflate algorithm.
/// </summary>
/// <param name="value">The byte array representing object to decompress.</param>
/// <param name="method">The algorithm to use.</param>
/// <returns>A byte array representing decompressed object.</returns>
public static byte[] Decompress(this byte[] value, CompressMethod method = CompressMethod.GZip)
{
if (value == null)
{
return(null);
}
using (var inputStream = new MemoryStream(value))
using (var outputStream = new MemoryStream())
{
switch (method)
{
case CompressMethod.GZip: return(GZipDecompress(inputStream, outputStream));
case CompressMethod.Deflate: return(DeflateDecompress(inputStream, outputStream));
default: return(null);
}
}
}
/// <summary>
/// Save compress stream to file.
/// </summary>
/// <param name="stream">Compress stream.</param>
/// <param name="fileName">File name.</param>
/// <param name="compressMethod">Compress method.</param>
/// <param name="replace">Override file.</param>
public static void WriteCompressStreamToFile(
this string fileName,
byte[] stream,
CompressMethod compressMethod = CompressMethod.Deflate,
bool replace = true)
{
if (replace && File.Exists(fileName))
{
File.Delete(fileName);
}
using (var fs = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite))
using (var ms = new MemoryStream(stream))
{
Stream zs;
switch (compressMethod)
{
case CompressMethod.Deflate:
zs = new DeflateStream(ms, CompressionMode.Decompress);
break;
case CompressMethod.GZip:
zs = new GZipStream(ms, CompressionMode.Decompress);
break;
default:
throw new ArgumentOutOfRangeException(nameof(compressMethod));
}
try
{
zs.CopyTo(fs);
}
finally
{
zs.Flush();
zs.Close();
}
}
}
public Compressor(CompressMethod method = CompressMethod.Zip, int level = 9)
{
this.method = method;
this.compressorLevel = level;
}
/// <summary>
/// Get compress stream from file. Use DeflateStream.
/// </summary>
/// <param name="fileName">File name</param>
/// <param name="compressMethod">Compression method</param>
/// <returns>Compress stream.</returns>
public static byte[] GetCompressStreamFromFile(
this string fileName,
CompressMethod compressMethod = CompressMethod.Deflate)
{
var tmpFile = Path.GetTempFileName();
FileStream fs = null;
Stream zip = null;
try
{
switch (compressMethod)
{
case CompressMethod.Deflate:
zip = new DeflateStream(new FileStream(tmpFile, FileMode.Create, FileAccess.Write),
CompressionMode.Compress);
break;
case CompressMethod.GZip:
zip = new GZipStream(new FileStream(tmpFile, FileMode.Create, FileAccess.Write),
CompressionMode.Compress);
break;
default:
throw new ArgumentOutOfRangeException(nameof(compressMethod));
}
fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
fs.CopyTo(zip);
}
catch (Exception)
{
if (File.Exists(tmpFile))
{
File.Delete(tmpFile);
}
throw;
}
finally
{
zip?.Flush();
zip?.Close();
zip?.Dispose();
fs?.Close();
fs?.Dispose();
}
byte[] res = null;
try
{
if (File.Exists(tmpFile))
{
res = GetStreamFromFile(tmpFile);
}
}
finally
{
if (File.Exists(tmpFile))
{
File.Delete(tmpFile);
}
}
return(res);
}
