private void parseData(IPHeader ipHeader, TCPHeader tcpHeader, string content, bool isRequest)
{
string destionationIP = ipHeader.DestinationAddress.ToString();
int destinationPort = Int32.Parse(tcpHeader.DestinationPort);
string sourceIP = ipHeader.SourceAddress.ToString();
int sourcePort = Int32.Parse(tcpHeader.SourcePort);
if (!isRequest)
{
int index = content.IndexOf("\r\n\r\n");
if (index != -1)
{
content = content.Substring(0, index).Trim();
}
}
string[] lines = content.Split(new char[] { '\r', '\n' });
if (isRequest && lines != null && lines.Length > 0)
{
Hashtable httpRequest = new Hashtable();
targetIP = destionationIP;
targetPort = destinationPort;
httpRequest.Add("REQUEST_IP_SOURCE", sourceIP);
httpRequest.Add("REQUEST_PORT_SOURCE", sourcePort);
httpRequest.Add("REQUEST_IP_DESTINATION", destionationIP);
httpRequest.Add("REQUEST_PORT_DESTINATION", destinationPort);
for (int i = 0; i < lines.Length; i++)
{
if (lines[i] != null && lines[i].Length > 0)
{
if (lines[i].StartsWith("GET "))
{
string value = lines[i].Substring("GET ".Length);
int index = value.IndexOf(" ");
if (index != -1)
{
value = value.Substring(0, index);
}
httpRequest.Add("REQUEST_URL", value);
}
else
{
int index = lines[i].IndexOf(":");
if (index > 0)
{
string key = lines[i].Substring(0, index).Trim();
string value = lines[i].Substring(index + 1).Trim();
if (!httpRequest.ContainsKey(key))
{
httpRequest.Add(key, value);
}
}
}
}
}
receiveRequest(httpRequest);
}
else if (!isRequest && lines != null && lines.Length > 0)
{
if (targetIP != null && targetIP.Equals(sourceIP) && targetPort == sourcePort)
{
Hashtable httpResponse = new Hashtable();
httpResponse.Add("RESPONSE_IP_SOURCE", sourceIP);
httpResponse.Add("RESPONSE_PORT_SOURCE", sourcePort);
httpResponse.Add("RESPONSE_IP_DESTINATION", destionationIP);
httpResponse.Add("RESPONSE_PORT_DESTINATION", destinationPort);
for (int i = 0; i < lines.Length; i++)
{
if (lines[i] != null && lines[i].Length > 0)
{
if (lines[i].StartsWith("HTTP/1.1 "))
{
string value = lines[i].Substring("HTTP/1.1 ".Length);
httpResponse.Add("REQUEST_CODE", value);
}
else
{
int index = lines[i].IndexOf(":");
if (index > 0)
{
string key = lines[i].Substring(0, index).Trim();
string value = lines[i].Substring(index + 1).Trim();
if (!httpResponse.ContainsKey(key))
{
httpResponse.Add(key, value);
}
}
}
}
}
receiveResponse(httpResponse);
}
}
}
private void parseData(IPHeader ipHeader, TCPHeader tcpHeader, string content, bool isRequest)
{
string destionationIP = ipHeader.DestinationAddress.ToString();
int destinationPort = Int32.Parse(tcpHeader.DestinationPort);
string sourceIP = ipHeader.SourceAddress.ToString();
int sourcePort = Int32.Parse(tcpHeader.SourcePort);
if (!isRequest) {
int index = content.IndexOf("\r\n\r\n");
if (index != -1) {
content = content.Substring(0, index).Trim();
}
}
string[] lines = content.Split(new char[] { '\r', '\n' });
if (isRequest && lines != null && lines.Length>0) {
Hashtable httpRequest = new Hashtable();
targetIP = destionationIP;
targetPort = destinationPort;
httpRequest.Add("REQUEST_IP_SOURCE", sourceIP);
httpRequest.Add("REQUEST_PORT_SOURCE", sourcePort);
httpRequest.Add("REQUEST_IP_DESTINATION", destionationIP);
httpRequest.Add("REQUEST_PORT_DESTINATION", destinationPort);
for (int i = 0; i < lines.Length; i++) {
if (lines[i] != null && lines[i].Length > 0) {
if (lines[i].StartsWith("GET ")) {
string value = lines[i].Substring("GET ".Length);
int index = value.IndexOf(" ");
if (index != -1) value = value.Substring(0, index);
httpRequest.Add("REQUEST_URL", value);
}
else {
int index = lines[i].IndexOf(":");
if (index > 0) {
string key = lines[i].Substring(0, index).Trim();
string value = lines[i].Substring(index + 1).Trim();
if (!httpRequest.ContainsKey(key)) httpRequest.Add(key, value);
}
}
}
}
receiveRequest(httpRequest);
}
else if (!isRequest && lines != null && lines.Length > 0) {
if (targetIP != null && targetIP.Equals(sourceIP) && targetPort == sourcePort) {
Hashtable httpResponse = new Hashtable();
httpResponse.Add("RESPONSE_IP_SOURCE", sourceIP);
httpResponse.Add("RESPONSE_PORT_SOURCE", sourcePort);
httpResponse.Add("RESPONSE_IP_DESTINATION", destionationIP);
httpResponse.Add("RESPONSE_PORT_DESTINATION", destinationPort);
for (int i = 0; i < lines.Length; i++) {
if (lines[i] != null && lines[i].Length > 0) {
if (lines[i].StartsWith("HTTP/1.1 ")) {
string value = lines[i].Substring("HTTP/1.1 ".Length);
httpResponse.Add("REQUEST_CODE", value);
}
else {
int index = lines[i].IndexOf(":");
if (index > 0) {
string key = lines[i].Substring(0, index).Trim();
string value = lines[i].Substring(index + 1).Trim();
if (!httpResponse.ContainsKey(key)) httpResponse.Add(key, value);
}
}
}
}
receiveResponse(httpResponse);
}
}
}