/// <summary>
/// Attempts to start a manual explore proxy on the specified port.
/// </summary>
/// <param name="port"></param>
public void StartManualExploreProxy(int port)
{
//check if the maximum number of proxies was reached
if (_manualExploreProxies.Count >= _maxProxies)
{
_logWriter.Log(TraceLevel.Error, "Maximum number of proxies ({0}) reached.", _maxProxies);
throw new HttpProxyException(HttpStatusCode.ServiceUnavailable, "Maximum number of proxies reached", ServiceCode.CommandProxyMaxiumumProxiesReached);
}
ManualExploreProxy proxy;
TrafficViewerFile file = new TrafficViewerFile();
file.Profile.SetExclusions(_exclusions);
proxy = new ManualExploreProxy(Host, port, file, true);
//set certificate policy
if (_ignoreCertErrors)
{
proxy.NetworkSettings.CertificateValidationCallback = new RemoteCertificateValidationCallback(IgnoreCertificateErrs);
}
proxy.NetworkSettings.WebProxy = WebRequest.GetSystemWebProxy();
proxy.Start();
_manualExploreProxies.Add(port, proxy);
}
/// <summary>
/// Stops a manual explore proxy on the specified port and then save the resulting traffic file if specified
/// </summary>
/// <param name="port">The corresponding proxy port</param>
/// <param name="fileName">Optional - The file name to use. If not provided no file will get created.</param>
public void StopManualExploreProxy(int port, string fileName = null)
{
if (!_manualExploreProxies.ContainsKey(port))
{
_logWriter.Log(TraceLevel.Error, "Can't stop proxy on port {0}. Not found.", port);
throw new HttpProxyException(HttpStatusCode.NotFound, "Proxy not found on the specified port", ServiceCode.CommandProxyStopCannotFindPort);
}
bool saveFile = !String.IsNullOrWhiteSpace(fileName);
string absolutePath = null;
if (saveFile) //we need to save a file name after stopping, perform validations on the file name
{
if (fileName.IndexOfAny(Path.GetInvalidFileNameChars()) >= 0 || fileName.IndexOfAny(Path.GetInvalidPathChars()) >= 0)
{
//invalid file name
_logWriter.Log(TraceLevel.Error, "Invalid characters in file name: {0}", fileName);
throw new HttpProxyException(HttpStatusCode.BadRequest, "Invalid file name", ServiceCode.CommandProxyStopInvalidFileName);
}
//now generate full path and check it
string fullPath = Path.Combine(_filesDirectory, String.Format("{0}.{1}", fileName, _recordingType));
absolutePath = Path.GetFullPath(fullPath);
if (!fullPath.StartsWith(_filesDirectory))
{
//path traversal attempt
_logWriter.Log(TraceLevel.Error, "Directory traversal attempted with file name: {0}", fileName);
throw new HttpProxyException(HttpStatusCode.BadRequest, "Directory traversal", ServiceCode.ProxyInternalError);
}
//check if the file already exists
if (File.Exists(fullPath))
{
_logWriter.Log(TraceLevel.Error, "File {0} already exists.", fileName);
throw new HttpProxyException(HttpStatusCode.Forbidden, "File already exists", ServiceCode.CommandProxyStopFileExists);
}
}
ManualExploreProxy proxy = _manualExploreProxies[port];
try
{
proxy.Stop();
//remove the proxy from the list of existing proxies
_manualExploreProxies.Remove(port);
}
catch (Exception ex)
{
_logWriter.Log(TraceLevel.Error, "Internal error trying to stop a proxy: {0}", ex);
throw new HttpProxyException(HttpStatusCode.InternalServerError, "Internal error trying to stop a proxy", ServiceCode.ProxyInternalError);
}
if (!saveFile)
{
_logWriter.Log(TraceLevel.Verbose,
"No file name was specified. Discarding the data for proxy started on port {0}", port);
//we are done here
return;
}
//file path is fine
try
{
TrafficViewerFile htd = (TrafficViewerFile)proxy.TrafficDataStore;
if (_recordingType.Equals(Constants.HTD_STRING))
{
htd.Save(absolutePath);
}
else if (_recordingType.Equals(Constants.EXD_STRING))
{
ManualExploreExporter exporter = new ManualExploreExporter();
Stream exportStream = new FileStream(absolutePath, FileMode.CreateNew);
exporter.Export(htd, exportStream);
exportStream.Close();
}
}
catch (Exception ex)
{
_logWriter.Log(TraceLevel.Error, "An exception occured saving traffic file: {0}", ex);
throw new HttpProxyException(HttpStatusCode.InternalServerError, "Cannot save file", ServiceCode.ProxyInternalError);
}
}
