/// <summary>
/// Ensures the stream is zipped - or zips it if needed
/// </summary>
/// <param name="fileName">Name of the file.</param>
/// <param name="fileStream">The file stream.</param>
/// <returns>Task<Stream>.</returns>
public static async Task <Stream> ZipTheStreamIfNeeded(string fileName, Stream fileStream)
{
if (fileName.EndsWith(".msi", StringComparison.InvariantCultureIgnoreCase))
{
return(fileStream);
}
if (ZipHelpers.IsZipCompressedData(fileStream))
{
return(fileStream);
}
else
{
string originalFilePath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString(), Path.GetFileNameWithoutExtension(fileName), fileName);
DirectoryInfo directoryToCompress = Directory.CreateDirectory(Path.GetDirectoryName(originalFilePath));
using (Stream compressedStream = File.Create(originalFilePath))
{
await fileStream.CopyToAsync(compressedStream).ConfigureAwait(false);
}
var zippedFilePath = directoryToCompress.FullName + ".zip";
ZipFile.CreateFromDirectory(directoryToCompress.FullName, zippedFilePath);
return(File.OpenRead(zippedFilePath));
}
}
public void TestZipFile()
{
using (StreamReader sr = new StreamReader("Zip/ThisIsAZip.zip"))
{
Assert.IsTrue(ZipHelpers.IsZipCompressedData(sr.BaseStream));
Assert.IsTrue(ZipHelpers.IsCompressedData(sr.BaseStream));
Assert.AreEqual(0, sr.BaseStream.Position);
}
}