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)
{
}
}
private void InspectFiles(List <string> fileNames)
{
var threads = new List <Thread>();
foreach (var fileName in fileNames)
{
var finfo = new FileInfo(fileName);
if (pcapReader.CanRead(fileName))
{
var reader = new PCAPReader();
var fileReadObjects = reader.Read(fileName);
var first = (PCAPBlock)fileReadObjects.First().ReadObject;
var last = (PCAPBlock)fileReadObjects.Last().ReadObject;
var dsource = new DataSource
{
FileInfo = finfo,
StartTime = first.DateTime,
EndTime = last.DateTime,
SourceType = SourceType.PCAP,
Packets = fileReadObjects.Count
};
UpdateList(dsource);
continue;
}
else if (pcapngReader.CanRead(fileName))
{
var reader = new PCAPNGReader();
var fileReadObjects = reader.Read(fileName);
var first = (PCAPNGBlock)fileReadObjects.First().ReadObject;
var last = (PCAPNGBlock)fileReadObjects.Last().ReadObject;
var dsource = new DataSource
{
FileInfo = finfo,
StartTime = first.Timestamp,
EndTime = last.Timestamp,
SourceType = SourceType.PCAPNG,
Packets = fileReadObjects.Count
};
UpdateList(dsource);
continue;
}
if (SevenZipArchive.IsSevenZipFile(fileName))
{
// because of lousy performance when operating on 7zip, we launch a new thread instead of using tasks
var thread = new Thread(() => DoSevenZip(finfo));
thread.Start();
threads.Add(thread);
continue;
}
// zip performance is much better and we will not thread
DoZip(finfo);
}
UpdateList("Waiting for all threads to finish");
foreach (Thread thread in threads)
{
thread.Join();
}
UpdateList("All threads finished");
}
