internal bool Attach(bool bCollectGWInfo)
{
if (!this._bIsAttached)
{
if (bCollectGWInfo)
{
this.CollectConnectoidAndGatewayInfo();
}
WinINETProxyInfo oNewInfo = new WinINETProxyInfo();
oNewInfo.bUseManualProxies = true;
oNewInfo.bAllowDirect = true;
oNewInfo.sHttpProxy = KPCONFIG.sKProxyListenHostPort;
if (KPCONFIG.bCaptureCONNECT)
{
oNewInfo.sHttpsProxy = KPCONFIG.sKProxyListenHostPort;
}
else if (this.piPrior != null)
{
oNewInfo.sHttpsProxy = this.piPrior.sHttpsProxy;
}
if ((this.piPrior != null) && this.piPrior.bUseManualProxies)
{
oNewInfo.sFtpProxy = this.piPrior.sFtpProxy;
oNewInfo.sSocksProxy = this.piPrior.sSocksProxy;
}
if (KPCONFIG.bCaptureFTP)
{
oNewInfo.sFtpProxy = KPCONFIG.sKProxyListenHostPort;
}
oNewInfo.sHostsThatBypass = KPCONFIG.sHostsThatBypassKProxy;
if (KPCONFIG.bHookWithPAC)
{
if (KProxyApplication.Prefs.GetBoolPref("KProxy.proxy.pacfile.usefileprotocol", true))
{
oNewInfo.sPACScriptLocation = "file://" + KPCONFIG.GetPath("Pac");
}
else
{
oNewInfo.sPACScriptLocation = "http://" + KPCONFIG.sKProxyListenHostPort + "/proxy.pac";
}
}
if (!KPCONFIG.bIsViewOnly)
{
if (this.oAllConnectoids.HookConnections(oNewInfo))
{
this._bIsAttached = true;
KProxyApplication.OnKProxyAttach();
this.WriteAutoProxyPACFile(true);
}
else
{
KProxyApplication.DoNotifyUser("Failed to register KProxy as the system proxy.", "Error");
_setDynamicRegistryKey(false);
return(false);
}
_setDynamicRegistryKey(true);
}
}
return(true);
}
//internal object _GetTransportContext()
//{
// if (base._httpsStream != null)
// {
// return base._httpsStream.get_TransportContext();
// }
// return null;
//}
private X509Certificate AttachClientCertificate(Session oS, object sender, string targetHost, X509CertificateCollection localCertificates, X509Certificate remoteCertificate, string[] acceptableIssuers)
{
if (localCertificates.Count > 0)
{
this.MarkAsAuthenticated(oS.LocalProcessID);
oS.oFlags["x-client-cert"] = localCertificates[0].Subject + " Serial#" + localCertificates[0].GetSerialNumberString();
return(localCertificates[0]);
}
if ((remoteCertificate != null) || (acceptableIssuers.Length >= 1))
{
X509Certificate certificate = this._GetDefaultCertificate();
if (certificate != null)
{
this.MarkAsAuthenticated(oS.LocalProcessID);
oS.oFlags["x-client-cert"] = certificate.Subject + " Serial#" + certificate.GetSerialNumberString();
return(certificate);
}
if (KPCONFIG.bShowDefaultClientCertificateNeededPrompt && KProxyApplication.Prefs.GetBoolPref("KProxy.network.https.clientcertificate.ephemeral.prompt-for-missing", true))
{
KProxyApplication.DoNotifyUser("The server [" + targetHost + "] requests a client certificate.\nPlease save a client certificate using the filename:\n\n" + KPCONFIG.GetPath("DefaultClientCertificate"), "Client Certificate Requested");
KProxyApplication.Prefs.SetBoolPref("KProxy.network.https.clientcertificate.ephemeral.prompt-for-missing", false);
}
}
return(null);
}
internal bool SecureClientPipe(string sHostname, HTTPResponseHeaders oHeaders)
{
X509Certificate2 certificate;
try
{
certificate = CertMaker.FindCert(sHostname, true);
}
catch (Exception exception)
{
//KProxyApplication.Log.LogFormat("KProxy.https> Failed to obtain certificate for {0} due to {1}", new object[] { sHostname, exception.Message });
certificate = null;
}
try
{
if (certificate == null)
{
KProxyApplication.DoNotifyUser("Unable to find Certificate for " + sHostname, "HTTPS Interception Failure");
oHeaders.HTTPResponseCode = 0x1f6;
oHeaders.HTTPResponseStatus = "502 KProxy unable to generate certificate";
}
if (KPCONFIG.bDebugSpew)
{
KProxyApplication.DebugSpew("SecureClientPipe for: " + this.ToString() + " sending data to client:\n" + Utilities.ByteArrayToHexView(oHeaders.ToByteArray(true, true), 0x20));
}
base.Send(oHeaders.ToByteArray(true, true));
if (oHeaders.HTTPResponseCode != 200)
{
KProxyApplication.DebugSpew("SecureClientPipe returning FALSE because HTTPResponseCode != 200");
return(false);
}
base._httpsStream = new SslStream(new NetworkStream(base._baseSocket, false), false);
base._httpsStream.AuthenticateAsServer(certificate, _bWantClientCert, KPCONFIG.oAcceptedClientHTTPSProtocols, false);
return(true);
}
catch (Exception exception2)
{
//KProxyApplication.Log.LogFormat("Secure client pipe failed: {0}{1}.", new object[] { exception2.Message, (exception2.InnerException == null) ? string.Empty : (" InnerException: " + exception2.InnerException.Message) });
KProxyApplication.DebugSpew("Secure client pipe failed: " + exception2.Message);
try
{
base.End();
}
catch
{
}
}
return(false);
}
private void ScanPathForTranscoders(string sPath)
{
try
{
if (Directory.Exists(sPath))
{
Evidence securityEvidence = Assembly.GetExecutingAssembly().Evidence;
bool boolPref = KProxyApplication.Prefs.GetBoolPref("KProxy.debug.extensions.verbose", false);
if (boolPref)
{
//KProxyApplication.Log.LogFormat("Searching for Transcoders under {0}", new object[] { sPath });
}
foreach (FileInfo info in new DirectoryInfo(sPath).GetFiles())
{
if (info.FullName.EndsWith(".dll", StringComparison.OrdinalIgnoreCase) && !info.FullName.StartsWith("_", StringComparison.OrdinalIgnoreCase))
{
Assembly assembly;
if (boolPref)
{
//KProxyApplication.Log.LogFormat("Looking for Transcoders inside {0}", new object[] { info.FullName.ToString() });
}
try
{
if (KPCONFIG.bRunningOnCLRv4)
{
assembly = Assembly.LoadFrom(info.FullName);
}
else
{
assembly = Assembly.LoadFrom(info.FullName, securityEvidence);
}
}
catch (Exception exception)
{
KProxyApplication.LogAddonException(exception, "Failed to load " + info.FullName);
continue;
}
this.ScanAssemblyForTranscoders(assembly);
}
}
}
}
catch (Exception exception2)
{
KProxyApplication.DoNotifyUser(string.Format("[Kavprot Proxy] Failure loading Transcoders: {0}", exception2.Message), "Transcoders Load Error");
}
}
private static void VistaClearTracks(bool bClearFiles, bool bClearCookies)
{
int num = 0;
if (bClearCookies)
{
num = 2;
}
if (bClearFiles)
{
num = 0x100c;
}
try
{
using (Process.Start("rundll32.exe", "inetcpl.cpl,ClearMyTracksByProcess " + num.ToString()))
{
}
}
catch (Exception exception)
{
KProxyApplication.DoNotifyUser("Failed to launch ClearMyTracksByProcess.\n" + exception.Message, "Error");
}
}
private static ICertificateProvider LoadOverrideCertProvider()
{
string stringPref = KProxyApplication.Prefs.GetStringPref("KProxy.certmaker.assembly", KPCONFIG.GetPath("App") + "CertMaker.dll");
if (File.Exists(stringPref))
{
Assembly assembly;
try
{
assembly = Assembly.LoadFrom(stringPref);
if (!Utilities.KProxyMeetsVersionRequirement(assembly, "Certificate Maker"))
{
return(null);
}
}
catch (Exception exception)
{
KProxyApplication.LogAddonException(exception, "Failed to load CertMaker" + stringPref);
return(null);
}
foreach (Type type in assembly.GetExportedTypes())
{
if ((!type.IsAbstract && type.IsPublic) && (type.IsClass && typeof(ICertificateProvider).IsAssignableFrom(type)))
{
try
{
return((ICertificateProvider)Activator.CreateInstance(type));
}
catch (Exception exception2)
{
KProxyApplication.DoNotifyUser(string.Format("[Kavprot Proxy] Failure loading {0} CertMaker from {1}: {2}\n\n{3}\n\n{4}", new object[] { type.Name, assembly.CodeBase, exception2.Message, exception2.StackTrace, exception2.InnerException }), "Load Error");
}
}
}
}
return(null);
}
internal static void EnsureFoldersExist()
{
try
{
if (!Directory.Exists(GetPath("Captures")))
{
Directory.CreateDirectory(GetPath("Captures"));
}
if (!Directory.Exists(GetPath("Requests")))
{
Directory.CreateDirectory(GetPath("Requests"));
}
if (!Directory.Exists(GetPath("Responses")))
{
Directory.CreateDirectory(GetPath("Responses"));
}
if (!Directory.Exists(GetPath("Scripts")))
{
Directory.CreateDirectory(GetPath("Scripts"));
}
}
catch (Exception exception)
{
KProxyApplication.DoNotifyUser(exception.ToString(), "Folder Creation Failed");
}
try
{
if ((!KProxyApplication.Prefs.GetBoolPref("KProxy.script.delaycreate", true) && !File.Exists(GetPath("CustomRules"))) && File.Exists(GetPath("SampleRules")))
{
File.Copy(GetPath("SampleRules"), GetPath("CustomRules"));
}
}
catch (Exception exception2)
{
KProxyApplication.DoNotifyUser(exception2.ToString(), "Initial file copies failed");
}
}
private bool ScanAssemblyForTranscoders(Assembly assemblyInput)
{
bool flag = false;
bool boolPref = KProxyApplication.Prefs.GetBoolPref("KProxy.debug.extensions.verbose", false);
try
{
if (!Utilities.KProxyMeetsVersionRequirement(assemblyInput, "Importers and Exporters"))
{
//KProxyApplication.Log.LogFormat("Assembly {0} did not specify a RequiredVersionAttribute. Aborting load of transcoders.", new object[] { assemblyInput.CodeBase });
return(false);
}
foreach (Type type in assemblyInput.GetExportedTypes())
{
if ((!type.IsAbstract && type.IsPublic) && type.IsClass)
{
if (typeof(ISessionImporter).IsAssignableFrom(type))
{
try
{
if (!this.AddToImportOrExportCollection(this.m_Importers, type))
{
//KProxyApplication.Log.LogFormat("WARNING: SessionImporter {0} from {1} failed to specify any ImportExportFormat attributes.", new object[] { type.Name, assemblyInput.CodeBase });
}
else
{
flag = true;
if (boolPref)
{
//KProxyApplication.Log.LogFormat(" Added SessionImporter {0}", new object[] { type.FullName });
}
}
}
catch (Exception exception)
{
KProxyApplication.DoNotifyUser(string.Format("[Kavprot Proxy] Failure loading {0} SessionImporter from {1}: {2}\n\n{3}\n\n{4}", new object[] { type.Name, assemblyInput.CodeBase, exception.Message, exception.StackTrace, exception.InnerException }), "Extension Load Error");
}
}
if (typeof(ISessionExporter).IsAssignableFrom(type))
{
try
{
if (!this.AddToImportOrExportCollection(this.m_Exporters, type))
{
//KProxyApplication.Log.LogFormat("WARNING: SessionExporter {0} from {1} failed to specify any ImportExportFormat attributes.", new object[] { type.Name, assemblyInput.CodeBase });
}
else
{
flag = true;
if (boolPref)
{
//KProxyApplication.Log.LogFormat(" Added SessionExporter {0}", new object[] { type.FullName });
}
}
}
catch (Exception exception2)
{
KProxyApplication.DoNotifyUser(string.Format("[Kavprot Proxy] Failure loading {0} SessionExporter from {1}: {2}\n\n{3}\n\n{4}", new object[] { type.Name, assemblyInput.CodeBase, exception2.Message, exception2.StackTrace, exception2.InnerException }), "Extension Load Error");
}
}
}
}
}
catch (Exception exception3)
{
KProxyApplication.DoNotifyUser(string.Format("[Kavprot Proxy] Failure loading Importer/Exporter from {0}: {1}", assemblyInput.CodeBase, exception3.Message), "Extension Load Error");
return(false);
}
return(flag);
}
internal bool Start(int iPort, bool bAllowRemote)
{
if (KPCONFIG.bIsViewOnly)
{
return(false);
}
bool flag = false;
try
{
flag = (bAllowRemote && KPCONFIG.bEnableIPv6) && Socket.OSSupportsIPv6;
}
catch (Exception exception)
{
KProxyApplication.DoNotifyUser(string.Concat(new object[] { "A Microsoft .NET configuration file (listed below) is corrupt and contains invalid data. You can often correct this error by installing updates from WindowsUpdate and/or reinstalling the .NET Framework.\n\n", exception.Message, "\nSource: ", exception.Source, "\n", exception.StackTrace, "\n\n", exception.InnerException, "\nKProxy v", Application.ProductVersion, (8 == IntPtr.Size) ? " (x64) " : " (x86) ", " [.NET ", Environment.Version, " on ", Environment.OSVersion.VersionString, "] " }), ".NET Configuration Error", MessageBoxIcon.Hand);
this.oAcceptor = null;
return(false);
}
try
{
if (flag)
{
this.oAcceptor = new Socket(AddressFamily.InterNetworkV6, SocketType.Stream, ProtocolType.Tcp);
if (Environment.OSVersion.Version.Major > 5)
{
this.oAcceptor.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.PacketInformation | SocketOptionName.KeepAlive, 0);
}
}
else
{
this.oAcceptor = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
if (KPCONFIG.ForceExclusivePort)
{
this.oAcceptor.ExclusiveAddressUse = true;
}
if (bAllowRemote)
{
if (flag)
{
this.oAcceptor.Bind(new IPEndPoint(IPAddress.IPv6Any, iPort));
}
else
{
this.oAcceptor.Bind(new IPEndPoint(IPAddress.Any, iPort));
}
}
else
{
this.oAcceptor.Bind(new IPEndPoint(IPAddress.Loopback, iPort));
}
this.oAcceptor.Listen(50);
}
catch (SocketException exception2)
{
string str = string.Empty;
string sTitle = "KProxy Cannot Listen";
switch (exception2.ErrorCode)
{
case 0x273f:
case 0x2741:
if (flag)
{
str = "\nThis often means that you've enabled IPv6 support inside Tools > Kavprot Proxy Options, but your computer has IPv6 disabled.";
}
break;
case 0x2740:
case 0x271d:
str = "\nThis is usually due to another service running on this port. Run NETSTAT -A at a command prompt.\nIf you don't want to stop using the other program, simply change the port used by KProxy.\nClick Tools > KProxy Options > Connections, select a new port, and restart KProxy.";
sTitle = "Kavprot Proxy Port in Use";
break;
}
this.oAcceptor = null;
KProxyApplication.DoNotifyUser(string.Format("Unable to bind to port [Localhost:{0}]. ErrorCode: {1}.\n{2}\n\n{3}\n\n{4}", new object[] { KPCONFIG.ListenPort, exception2.ErrorCode, str, exception2.ToString(), string.Concat(new object[] { "KProxy v", Application.ProductVersion, " [.NET ", Environment.Version, " on ", Environment.OSVersion.VersionString, "]" }) }), sTitle, MessageBoxIcon.Hand);
return(false);
}
catch (Exception exception3)
{
this.oAcceptor = null;
KProxyApplication.ReportException(exception3);
return(false);
}
try
{
this.oAcceptor.BeginAccept(new AsyncCallback(this.AcceptConnection), null);
}
catch (Exception exception4)
{
this.oAcceptor = null;
//KProxyApplication.Log.LogFormat("Kavprot Proxy BeginAccept() Exception: {0}", new object[] { exception4.Message });
return(false);
}
return(true);
}
public static string GetPath(string sWhatPath)
{
string folderPath;
switch (sWhatPath)
{
case "App":
return(Path.GetDirectoryName(Application.ExecutablePath) + @"\");
case "AutoKProxys_Machine":
return(Path.GetDirectoryName(Application.ExecutablePath) + @"\Scripts\");
case "AutoKProxys_User":
return(sUserPath + @"Scripts\");
case "AutoResponderDefaultRules":
return(sUserPath + @"\AutoResponder.xml");
case "Captures":
return(KProxyApplication.Prefs.GetStringPref("KProxy.KPCONFIG.path.captures", sUserPath + @"Captures\"));
case "CustomRules":
return(sScriptPath);
case "DefaultClientCertificate":
return(KProxyApplication.Prefs.GetStringPref("KProxy.KPCONFIG.path.defaultclientcert", sUserPath + "ClientCertificate.cer"));
case "KProxyRootCert":
return(sUserPath + "Root.cer");
case "Filters":
return(sUserPath + @"Filters\");
case "Inspectors":
return(Path.GetDirectoryName(Application.ExecutablePath) + @"\Inspectors\");
case "PerUser-ISA-Config":
folderPath = "C:";
try
{
folderPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
}
catch
{
}
return(folderPath + @"\microsoft\firewall client 2004\management.ini");
case "PerMachine-ISA-Config":
folderPath = "C:";
try
{
folderPath = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
}
catch
{
}
return(folderPath + @"\microsoft\firewall client 2004\management.ini");
case "MakeCert":
folderPath = KProxyApplication.Prefs.GetStringPref("KProxy.KPCONFIG.path.makecert", Path.GetDirectoryName(Application.ExecutablePath) + @"\MakeCert.exe");
if (!File.Exists(folderPath))
{
folderPath = "MakeCert.exe";
}
return(folderPath);
case "MyDocs":
folderPath = "C:";
try
{
folderPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
}
catch (Exception exception)
{
KProxyApplication.DoNotifyUser("Initialization Error", "Failed to retrieve path to your My Documents folder.\nThis generally means you have a relative environment variable.\nDefaulting to C:\\\n\n" + exception.Message);
}
return(folderPath);
case "Pac":
return(KProxyApplication.Prefs.GetStringPref("KProxy.KPCONFIG.path.pac", sUserPath + @"Scripts\BrowserPAC.js"));
case "Requests":
return(KProxyApplication.Prefs.GetStringPref("KProxy.KPCONFIG.path.requests", sUserPath + @"Captures\Requests\"));
case "Responses":
return(KProxyApplication.Prefs.GetStringPref("KProxy.KPCONFIG.path.responses", sUserPath + @"Captures\Responses\"));
case "Root":
return(sUserPath);
case "SafeTemp":
folderPath = "C:";
try
{
folderPath = Environment.GetFolderPath(Environment.SpecialFolder.InternetCache);
}
catch (Exception exception2)
{
KProxyApplication.DoNotifyUser("Failed to retrieve path to your Internet Cache folder.\nThis generally means you have a relative environment variable.\nDefaulting to C:\\\n\n" + exception2.Message, "GetPath(SafeTemp) Failed");
}
return(folderPath);
case "SampleRules":
return(Path.GetDirectoryName(Application.ExecutablePath) + @"\Scripts\SampleRules.js");
case "Scripts":
return(sUserPath + @"Scripts\");
case "TemplateResponses":
return(KProxyApplication.Prefs.GetStringPref("KProxy.KPCONFIG.path.templateresponses", Path.GetDirectoryName(Application.ExecutablePath) + @"\ResponseTemplates\"));
case "TextEditor":
return(KProxyApplication.Prefs.GetStringPref("KProxy.KPCONFIG.path.texteditor", m_TextEditor));
case "Transcoders_Machine":
return(Path.GetDirectoryName(Application.ExecutablePath) + @"\ImportExport\");
case "Transcoders_User":
return(sUserPath + @"ImportExport\");
case "WINDIFF":
{
string stringPref = KProxyApplication.Prefs.GetStringPref("KProxy.KPCONFIG.path.comparetool", null);
if (string.IsNullOrEmpty(stringPref))
{
if (m_CompareTool == "windiff.exe")
{
if (File.Exists(GetPath("App") + "windiff.exe"))
{
return(GetPath("App") + "windiff.exe");
}
RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\WinMerge.exe", false);
if (key != null)
{
string str3 = (string)key.GetValue(string.Empty, null);
key.Close();
if (str3 != null)
{
return(str3);
}
}
}
return(m_CompareTool);
}
return(stringPref);
}
}
return("C:");
}