private void GetHttpPayload(Frameunit frameunit)
{
string tcpSeqNum = frameunit.fieldUnit.sourceAddr + "_" + frameunit.fieldUnit.destAddr + "_" + frameunit.propertyUnit.tcpSeqNumber;
string nextSeqNum = frameunit.fieldUnit.sourceAddr + "_" + frameunit.fieldUnit.destAddr + "_" + (frameunit.propertyUnit.tcpSeqNumber + frameunit.propertyUnit.tcpPayloadLength);
string uri = frameunit.propertyUnit.httpserver + frameunit.propertyUnit.httpurilocation;
int frameNum = frameunit.frameNum;
if (URIResFragments.ContainsKey(uri) && pastFrameNum.Contains(tcpSeqNum) == false)
{
fragments frag = new fragments();
frag.tcpSeqNum = nextSeqNum;
frag.fragmentsInfo = new List <string>();
fragments target = URIResFragments[uri];
if (target.tcpSeqNum == tcpSeqNum)
{
target.fragmentsInfo.Add(frameNum + "_HTTP");
target.tcpSeqNum = nextSeqNum;
URIResFragments[uri] = target;
}
else
{
frag.fragmentsInfo.Add(frameNum + "_HTTP");
URIResFragments[uri] = frag;
}
pastFrameNum.Add(tcpSeqNum);
}
}
private void GetTcpPayload()
{
List <int> tcpFrames = new List <int>();
bool needAnotherLoop = true;
List <int> needLoop = _CommonNums;
while (needAnotherLoop)
{
needAnotherLoop = false;
tcpFrames = needLoop;
needLoop = new List <int>();
foreach (int tcpframe in tcpFrames)
{
int frameNum = tcpframe;
Frameunit frameunit = _frameNumberDict[frameNum];
string tcpSeqNum = frameunit.fieldUnit.sourceAddr + "_" + frameunit.fieldUnit.destAddr + "_" + frameunit.propertyUnit.tcpSeqNumber;
string nextSeqNum = frameunit.fieldUnit.sourceAddr + "_" + frameunit.fieldUnit.destAddr + "_" + (frameunit.propertyUnit.tcpSeqNumber + frameunit.propertyUnit.tcpPayloadLength);
if (pastFrameNum.Contains(tcpSeqNum) == false)
{
if (FindSeqNumInDict(tcpSeqNum) == false)
{
needLoop.Add(frameNum);
}
else
{
fragments target = URIResFragments[_currentUri];
//change target.tcpSeqNum
target.tcpSeqNum = nextSeqNum;
target.fragmentsInfo.Add(frameNum + "_TCP");
pastFrameNum.Add(tcpSeqNum);
needAnotherLoop = true; // some tcp frame might arrive at a wrong order comparing to its seqnumber
}
}
}
}
}
private void CreateResource(string uri, fragments frag)
{
// Console.WriteLine("uri:"+uri);
string http_frame = frag.fragmentsInfo[0];
int startframeNum = Int32.Parse(http_frame.Split('_')[0]);
Frameunit frameunit = _frameNumberDict[startframeNum];
string contentType = frameunit.propertyUnit.httpcontentType;
// Console.WriteLine(contentType);
string urilocation = frameunit.propertyUnit.httpurilocation;
string outputName = _outputFolder + "\\" + startframeNum + "_" + urilocation.Split('/')[urilocation.Split('/').Length - 2] + "_" + urilocation.Split('/')[urilocation.Split('/').Length - 1];
List <Byte> fragBytes = _payloadProcessing.ConstructFragments(frag.fragmentsInfo, frameunit.propertyUnit.httpcontentEncoding);
Console.WriteLine(uri + ":" + frameunit.propertyUnit.httpcontentType + ": " + frameunit.propertyUnit.httpcontentEncoding);
string writeline = uri + "," + contentType;
// _csvWriter.AddLineToCsv(writeline);
_csvAllLines.Add(writeline);
Console.WriteLine("transfer type:" + frameunit.propertyUnit.httptransferType);
if (fragBytes.Count > 0)
{
_fileConstructor = new FileConstructor(fragBytes, contentType, frameunit.propertyUnit.httpcontentEncoding, frameunit.propertyUnit.httptransferType, outputName, uri);
Console.WriteLine(_fileConstructor.IsSuccessful);
if (_fileConstructor.IsSuccessful == false)
{
string retsr = "";
foreach (string item in frag.fragmentsInfo)
{
retsr += item + ", ";
}
Console.WriteLine("uri:" + uri);
Console.WriteLine(retsr);
Console.WriteLine("\n\n");
}
}
}
