private void ZipReader(IReader reader, DataSource dataSource)
{
//try
{
while (reader.MoveToNextEntry())
{
if (!reader.Entry.IsDirectory)
{
if (reader.Entry.Key != dataSource.ArchiveKey)
{
continue;
}
var memstream = new MemoryStream();
using (var entryStream = reader.OpenEntryStream())
{
entryStream.CopyTo(memstream);
memstream.Position = 0;
}
if (dataSource.ArchiveSourceType == SourceType.PCAP)
{
pcapReader.ReadStream(memstream);
}
if (dataSource.ArchiveSourceType == SourceType.PCAPNG)
{
pcapngReader.ReadStream(memstream);
}
}
}
}
//catch(Exception e)
{
}
}
private void PeekReader(IReader reader, FileInfo finfo)
{
//try
{
while (reader.MoveToNextEntry())
{
if (!reader.Entry.IsDirectory)
{
var readbytes = new byte[4];
using (var entryStream = reader.OpenEntryStream())
{
entryStream.Read(readbytes, 0, 4);
var dsource = new DataSource
{
FileInfo = finfo,
SourceType = SourceType.Zip,
ArchiveKey = reader.Entry.Key
};
if (IsPCAP(readbytes))
{
var memstream = MemStream(readbytes, entryStream);
var pcapreader = new PCAPReader();
var fileReadObjects = pcapreader.ReadStream(memstream);
var first = (PCAPBlock)fileReadObjects.First().ReadObject;
var last = (PCAPBlock)fileReadObjects.Last().ReadObject;
dsource.StartTime = first.DateTime;
dsource.EndTime = last.DateTime;
dsource.Packets = fileReadObjects.Count();
dsource.ArchiveSourceType = SourceType.PCAP;
UpdateList(dsource);
}
if (IsPCAPNG(readbytes))
{
var memstream = MemStream(readbytes, entryStream);
var pcapngreader = new PCAPNGReader();
var fileReadObjects = pcapngreader.ReadStream(memstream);
var first = (PCAPNGBlock)fileReadObjects.First().ReadObject;
var last = (PCAPNGBlock)fileReadObjects.Last().ReadObject;
dsource.StartTime = first.Timestamp;
dsource.EndTime = last.Timestamp;
dsource.Packets = fileReadObjects.Count();
dsource.ArchiveSourceType = SourceType.PCAPNG;
UpdateList(dsource);
}
}
}
}
}
//catch(Exception e)
{
}
}
