/// <summary>
/// Convert the current record to a GZipped Base64 string
/// </summary>
/// <returns></returns>
public string ToRawForm()
{
var rawDoc = Serializers.PxzRecordToXml(this);
var rawXml = rawDoc.OuterXml;
return(GZipCompressor.CompressString(rawXml));
}
/// <summary>
/// Save this PXZ file to disk
/// </summary>
/// <param name="path">The file to save to/create</param>
public void Save(string path)
{
//delete the existing file (if it exists)
if (System.IO.File.Exists(path))
{
System.IO.File.Delete(path);
}
//new index attributes (don't override records though)
FileIndex.Author = PxzAuthor.FromCurrent();
var idxDoc = FileIndex.ToXml();
//deflate the content to save room (poster isn't compressed via Zlib)
var idxByte = GZipCompressor.CompressString(idxDoc.OuterXml);
//names of root format items
const string idxName = @"index";
const string recName = @"records";
//create a new temporary Zip file (in memory, not on disk)
using var archive = new ZipFile(path, Encoding.Default);
//add the indexing information to the PXZ
archive.AddEntry(idxName, idxByte);
//add records folder
archive.AddDirectoryByName(recName);
//traverse the records list
foreach (var r in Records)
{
//null records are skipped
if (r == null)
{
continue;
}
//convert to record string
var raw = r.ToRawForm();
//record name
var fileName = $"{recName}/{r.Header.Naming.StoredName}";
//add the ZIP entry of the file
if (!archive.Any(entry => entry.FileName.EndsWith(fileName)))
{
archive.AddEntry(fileName, raw);
}
}
//finalise ZIP file
archive.Save(path);
//cull the residual archive from memory
archive.Dispose();
}
/// <summary>
/// rawData should NOT contain encrypted bytes; this is done here if applicable.
/// </summary>
/// <param name="rawData"></param>
/// <param name="protectedData"></param>
private void GenericConstructor(byte[] rawData, bool protectedData = false)
{
Encrypted = protectedData;
//we'll need to encrypt everything if it's true
if (protectedData)
{
var provider = new ProtectedBytes(rawData, ProtectionMode.Encrypt);
rawData = provider.ProcessedValue;
}
RawRecord = GZipCompressor.CompressString(rawData);
}
