Commit 1acc1ad8 authored by Jehonathan's avatar Jehonathan Committed by GitHub

Merge pull request #138 from aricih/release

ProcessId is fixed on HttpWebClient
parents 13bd6bc0 78aa6639
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This diff is collapsed.
using System.Collections.Generic; using System.Collections.Generic;
using System.Net; using System.Net;
using System.Net.Sockets; using System.Net.Sockets;
namespace Titanium.Web.Proxy.Models namespace Titanium.Web.Proxy.Models
{ {
/// <summary> /// <summary>
/// An abstract endpoint where the proxy listens /// An abstract endpoint where the proxy listens
/// </summary> /// </summary>
public abstract class ProxyEndPoint public abstract class ProxyEndPoint
{ {
public ProxyEndPoint(IPAddress IpAddress, int Port, bool EnableSsl) public ProxyEndPoint(IPAddress IpAddress, int Port, bool EnableSsl)
{ {
this.IpAddress = IpAddress; this.IpAddress = IpAddress;
this.Port = Port; this.Port = Port;
this.EnableSsl = EnableSsl; this.EnableSsl = EnableSsl;
} }
public IPAddress IpAddress { get; internal set; } public IPAddress IpAddress { get; internal set; }
public int Port { get; internal set; } public int Port { get; internal set; }
public bool EnableSsl { get; internal set; } public bool EnableSsl { get; internal set; }
internal TcpListener listener { get; set; } public bool IpV6Enabled => IpAddress == IPAddress.IPv6Any
} || IpAddress == IPAddress.IPv6Loopback
|| IpAddress == IPAddress.IPv6None;
/// <summary>
/// A proxy endpoint that the client is aware of internal TcpListener listener { get; set; }
/// So client application know that it is communicating with a proxy server }
/// </summary>
public class ExplicitProxyEndPoint : ProxyEndPoint /// <summary>
{ /// A proxy endpoint that the client is aware of
internal bool IsSystemHttpProxy { get; set; } /// So client application know that it is communicating with a proxy server
internal bool IsSystemHttpsProxy { get; set; } /// </summary>
public class ExplicitProxyEndPoint : ProxyEndPoint
public List<string> ExcludedHttpsHostNameRegex { get; set; } {
internal bool IsSystemHttpProxy { get; set; }
public ExplicitProxyEndPoint(IPAddress IpAddress, int Port, bool EnableSsl) internal bool IsSystemHttpsProxy { get; set; }
: base(IpAddress, Port, EnableSsl)
{ public List<string> ExcludedHttpsHostNameRegex { get; set; }
} public ExplicitProxyEndPoint(IPAddress IpAddress, int Port, bool EnableSsl)
} : base(IpAddress, Port, EnableSsl)
{
/// <summary>
/// A proxy end point client is not aware of }
/// Usefull when requests are redirected to this proxy end point through port forwarding }
/// </summary>
public class TransparentProxyEndPoint : ProxyEndPoint /// <summary>
{ /// A proxy end point client is not aware of
//Name of the Certificate need to be sent (same as the hostname we want to proxy) /// Usefull when requests are redirected to this proxy end point through port forwarding
//This is valid only when UseServerNameIndication is set to false /// </summary>
public string GenericCertificateName { get; set; } public class TransparentProxyEndPoint : ProxyEndPoint
{
//Name of the Certificate need to be sent (same as the hostname we want to proxy)
// public bool UseServerNameIndication { get; set; } //This is valid only when UseServerNameIndication is set to false
public string GenericCertificateName { get; set; }
public TransparentProxyEndPoint(IPAddress IpAddress, int Port, bool EnableSsl)
: base(IpAddress, Port, EnableSsl)
{ // public bool UseServerNameIndication { get; set; }
this.GenericCertificateName = "localhost";
} public TransparentProxyEndPoint(IPAddress IpAddress, int Port, bool EnableSsl)
} : base(IpAddress, Port, EnableSsl)
{
} this.GenericCertificateName = "localhost";
}
}
}
namespace Titanium.Web.Proxy.Models using System;
{ using System.Net;
/// <summary>
/// An upstream proxy this proxy uses if any namespace Titanium.Web.Proxy.Models
/// </summary> {
public class ExternalProxy /// <summary>
{ /// An upstream proxy this proxy uses if any
public string UserName { get; set; } /// </summary>
public string Password { get; set; } public class ExternalProxy
public string HostName { get; set; } {
public int Port { get; set; } private static readonly Lazy<NetworkCredential> DefaultCredentials = new Lazy<NetworkCredential>(() => CredentialCache.DefaultNetworkCredentials);
}
} private string userName;
private string password;
public bool UseDefaultCredentials { get; set; }
public string UserName {
get { return UseDefaultCredentials ? DefaultCredentials.Value.UserName : userName; }
set
{
userName = value;
if (DefaultCredentials.Value.UserName != userName)
{
UseDefaultCredentials = false;
}
}
}
public string Password
{
get { return UseDefaultCredentials ? DefaultCredentials.Value.Password : password; }
set
{
password = value;
if (DefaultCredentials.Value.Password != password)
{
UseDefaultCredentials = false;
}
}
}
public string HostName { get; set; }
public int Port { get; set; }
}
}
...@@ -16,7 +16,7 @@ namespace Titanium.Web.Proxy.Network ...@@ -16,7 +16,7 @@ namespace Titanium.Web.Proxy.Network
internal ExternalProxy UpStreamHttpsProxy { get; set; } internal ExternalProxy UpStreamHttpsProxy { get; set; }
internal string HostName { get; set; } internal string HostName { get; set; }
internal int port { get; set; } internal int Port { get; set; }
internal bool IsHttps { get; set; } internal bool IsHttps { get; set; }
......
...@@ -49,7 +49,7 @@ namespace Titanium.Web.Proxy.Network ...@@ -49,7 +49,7 @@ namespace Titanium.Web.Proxy.Network
SslStream sslStream = null; SslStream sslStream = null;
//If this proxy uses another external proxy then create a tunnel request for HTTPS connections //If this proxy uses another external proxy then create a tunnel request for HTTPS connections
if (externalHttpsProxy != null) if (externalHttpsProxy != null && externalHttpsProxy.HostName != remoteHostName)
{ {
client = new TcpClient(externalHttpsProxy.HostName, externalHttpsProxy.Port); client = new TcpClient(externalHttpsProxy.HostName, externalHttpsProxy.Port);
stream = client.GetStream(); stream = client.GetStream();
...@@ -100,17 +100,14 @@ namespace Titanium.Web.Proxy.Network ...@@ -100,17 +100,14 @@ namespace Titanium.Web.Proxy.Network
} }
catch catch
{ {
if (sslStream != null) sslStream?.Dispose();
{
sslStream.Dispose();
}
throw; throw;
} }
} }
else else
{ {
if (externalHttpProxy != null) if (externalHttpProxy != null && externalHttpProxy.HostName != remoteHostName)
{ {
client = new TcpClient(externalHttpProxy.HostName, externalHttpProxy.Port); client = new TcpClient(externalHttpProxy.HostName, externalHttpProxy.Port);
stream = client.GetStream(); stream = client.GetStream();
...@@ -133,7 +130,7 @@ namespace Titanium.Web.Proxy.Network ...@@ -133,7 +130,7 @@ namespace Titanium.Web.Proxy.Network
UpStreamHttpProxy = externalHttpProxy, UpStreamHttpProxy = externalHttpProxy,
UpStreamHttpsProxy = externalHttpsProxy, UpStreamHttpsProxy = externalHttpsProxy,
HostName = remoteHostName, HostName = remoteHostName,
port = remotePort, Port = remotePort,
IsHttps = isHttps, IsHttps = isHttps,
TcpClient = client, TcpClient = client,
StreamReader = new CustomBinaryReader(stream), StreamReader = new CustomBinaryReader(stream),
......
...@@ -17,7 +17,7 @@ namespace Titanium.Web.Proxy ...@@ -17,7 +17,7 @@ namespace Titanium.Web.Proxy
/// </summary> /// </summary>
public partial class ProxyServer : IDisposable public partial class ProxyServer : IDisposable
{ {
/// <summary> /// <summary>
/// Is the root certificate used by this proxy is valid? /// Is the root certificate used by this proxy is valid?
/// </summary> /// </summary>
...@@ -186,6 +186,11 @@ namespace Titanium.Web.Proxy ...@@ -186,6 +186,11 @@ namespace Titanium.Web.Proxy
/// </summary> /// </summary>
public bool ProxyRunning => proxyRunning; public bool ProxyRunning => proxyRunning;
/// <summary>
/// Gets or sets a value indicating whether requests will be chained to upstream gateway.
/// </summary>
public bool ForwardToUpstreamGateway { get; set; }
/// <summary> /// <summary>
/// Constructor /// Constructor
/// </summary> /// </summary>
...@@ -348,6 +353,12 @@ namespace Titanium.Web.Proxy ...@@ -348,6 +353,12 @@ namespace Titanium.Web.Proxy
certificateCacheManager.TrustRootCertificate(); certificateCacheManager.TrustRootCertificate();
} }
if (ForwardToUpstreamGateway && GetCustomUpStreamHttpProxyFunc == null && GetCustomUpStreamHttpsProxyFunc == null)
{
GetCustomUpStreamHttpProxyFunc = GetSystemUpStreamProxy;
GetCustomUpStreamHttpsProxyFunc = GetSystemUpStreamProxy;
}
foreach (var endPoint in ProxyEndPoints) foreach (var endPoint in ProxyEndPoints)
{ {
Listen(endPoint); Listen(endPoint);
...@@ -358,6 +369,28 @@ namespace Titanium.Web.Proxy ...@@ -358,6 +369,28 @@ namespace Titanium.Web.Proxy
proxyRunning = true; proxyRunning = true;
} }
/// <summary>
/// Gets the system up stream proxy.
/// </summary>
/// <param name="sessionEventArgs">The <see cref="SessionEventArgs"/> instance containing the event data.</param>
/// <returns><see cref="ExternalProxy"/> instance containing valid proxy configuration from PAC/WAPD scripts if any exists.</returns>
private Task<ExternalProxy> GetSystemUpStreamProxy(SessionEventArgs sessionEventArgs)
{
// Use built-in WebProxy class to handle PAC/WAPD scripts.
var systemProxyResolver = new WebProxy();
var systemProxyUri = systemProxyResolver.GetProxy(sessionEventArgs.WebSession.Request.RequestUri);
// TODO: Apply authorization
var systemProxy = new ExternalProxy
{
HostName = systemProxyUri.Host,
Port = systemProxyUri.Port
};
return Task.FromResult(systemProxy);
}
/// <summary> /// <summary>
/// Stop this proxy server /// Stop this proxy server
/// </summary> /// </summary>
......
...@@ -2,6 +2,7 @@ ...@@ -2,6 +2,7 @@
using System.Collections.Generic; using System.Collections.Generic;
using System.IO; using System.IO;
using System.Linq; using System.Linq;
using System.Net;
using System.Net.Security; using System.Net.Security;
using System.Net.Sockets; using System.Net.Sockets;
using System.Security.Authentication; using System.Security.Authentication;
...@@ -16,7 +17,6 @@ using Titanium.Web.Proxy.Shared; ...@@ -16,7 +17,6 @@ using Titanium.Web.Proxy.Shared;
using Titanium.Web.Proxy.Http; using Titanium.Web.Proxy.Http;
using System.Threading.Tasks; using System.Threading.Tasks;
using Titanium.Web.Proxy.Extensions; using Titanium.Web.Proxy.Extensions;
using System.Text;
namespace Titanium.Web.Proxy namespace Titanium.Web.Proxy
{ {
...@@ -25,12 +25,33 @@ namespace Titanium.Web.Proxy ...@@ -25,12 +25,33 @@ namespace Titanium.Web.Proxy
/// </summary> /// </summary>
partial class ProxyServer partial class ProxyServer
{ {
private int FindProcessIdFromLocalPort(int port, IpVersion ipVersion)
{
var tcpRow = TcpHelper.GetExtendedTcpTable(ipVersion).FirstOrDefault(
row => row.LocalEndPoint.Port == port);
return tcpRow?.ProcessId ?? 0;
}
private int GetProcessIdFromPort(int port, bool ipV6Enabled)
{
var processId = FindProcessIdFromLocalPort(port, IpVersion.Ipv4);
if (processId > 0 && !ipV6Enabled)
{
return processId;
}
return FindProcessIdFromLocalPort(port, IpVersion.Ipv6);
}
//This is called when client is aware of proxy //This is called when client is aware of proxy
//So for HTTPS requests client would send CONNECT header to negotiate a secure tcp tunnel via proxy //So for HTTPS requests client would send CONNECT header to negotiate a secure tcp tunnel via proxy
private async Task HandleClient(ExplicitProxyEndPoint endPoint, TcpClient client) private async Task HandleClient(ExplicitProxyEndPoint endPoint, TcpClient tcpClient)
{ {
Stream clientStream = client.GetStream(); var processId = GetProcessIdFromPort(((IPEndPoint)tcpClient.Client.RemoteEndPoint).Port, endPoint.IpV6Enabled);
Stream clientStream = tcpClient.GetStream();
clientStream.ReadTimeout = ConnectionTimeOutSeconds * 1000; clientStream.ReadTimeout = ConnectionTimeOutSeconds * 1000;
clientStream.WriteTimeout = ConnectionTimeOutSeconds * 1000; clientStream.WriteTimeout = ConnectionTimeOutSeconds * 1000;
...@@ -145,7 +166,6 @@ namespace Titanium.Web.Proxy ...@@ -145,7 +166,6 @@ namespace Titanium.Web.Proxy
//write back successfull CONNECT response //write back successfull CONNECT response
await WriteConnectResponse(clientStreamWriter, version); await WriteConnectResponse(clientStreamWriter, version);
await TcpHelper.SendRaw(BUFFER_SIZE, ConnectionTimeOutSeconds, httpRemoteUri.Host, httpRemoteUri.Port, await TcpHelper.SendRaw(BUFFER_SIZE, ConnectionTimeOutSeconds, httpRemoteUri.Host, httpRemoteUri.Port,
httpCmd, version, null, httpCmd, version, null,
false, SupportedSslProtocols, false, SupportedSslProtocols,
...@@ -157,7 +177,7 @@ namespace Titanium.Web.Proxy ...@@ -157,7 +177,7 @@ namespace Titanium.Web.Proxy
return; return;
} }
//Now create the request //Now create the request
await HandleHttpSessionRequest(client, httpCmd, clientStream, clientStreamReader, clientStreamWriter, await HandleHttpSessionRequest(tcpClient, processId, httpCmd, clientStream, clientStreamReader, clientStreamWriter,
httpRemoteUri.Scheme == Uri.UriSchemeHttps ? httpRemoteUri.Host : null, connectRequestHeaders, null, null); httpRemoteUri.Scheme == Uri.UriSchemeHttps ? httpRemoteUri.Host : null, connectRequestHeaders, null, null);
} }
catch (Exception ex) catch (Exception ex)
...@@ -170,6 +190,8 @@ namespace Titanium.Web.Proxy ...@@ -170,6 +190,8 @@ namespace Titanium.Web.Proxy
//So for HTTPS requests we would start SSL negotiation right away without expecting a CONNECT request from client //So for HTTPS requests we would start SSL negotiation right away without expecting a CONNECT request from client
private async Task HandleClient(TransparentProxyEndPoint endPoint, TcpClient tcpClient) private async Task HandleClient(TransparentProxyEndPoint endPoint, TcpClient tcpClient)
{ {
var processId = GetProcessIdFromPort(((IPEndPoint)tcpClient.Client.RemoteEndPoint).Port, endPoint.IpV6Enabled);
Stream clientStream = tcpClient.GetStream(); Stream clientStream = tcpClient.GetStream();
clientStream.ReadTimeout = ConnectionTimeOutSeconds * 1000; clientStream.ReadTimeout = ConnectionTimeOutSeconds * 1000;
...@@ -199,10 +221,7 @@ namespace Titanium.Web.Proxy ...@@ -199,10 +221,7 @@ namespace Titanium.Web.Proxy
} }
catch (Exception) catch (Exception)
{ {
if (sslStream != null) sslStream.Dispose();
{
sslStream.Dispose();
}
Dispose(sslStream, clientStreamReader, clientStreamWriter, null); Dispose(sslStream, clientStreamReader, clientStreamWriter, null);
return; return;
...@@ -219,11 +238,10 @@ namespace Titanium.Web.Proxy ...@@ -219,11 +238,10 @@ namespace Titanium.Web.Proxy
var httpCmd = await clientStreamReader.ReadLineAsync(); var httpCmd = await clientStreamReader.ReadLineAsync();
//Now create the request //Now create the request
await HandleHttpSessionRequest(tcpClient, httpCmd, clientStream, clientStreamReader, clientStreamWriter, await HandleHttpSessionRequest(tcpClient, processId, httpCmd, clientStream, clientStreamReader, clientStreamWriter,
endPoint.EnableSsl ? endPoint.GenericCertificateName : null, null); endPoint.EnableSsl ? endPoint.GenericCertificateName : null, null);
} }
private async Task HandleHttpSessionRequestInternal(TcpConnection connection, SessionEventArgs args, ExternalProxy customUpStreamHttpProxy, ExternalProxy customUpStreamHttpsProxy, bool CloseConnection) private async Task HandleHttpSessionRequestInternal(TcpConnection connection, SessionEventArgs args, ExternalProxy customUpStreamHttpProxy, ExternalProxy customUpStreamHttpsProxy, bool CloseConnection)
{ {
try try
...@@ -256,10 +274,8 @@ namespace Titanium.Web.Proxy ...@@ -256,10 +274,8 @@ namespace Titanium.Web.Proxy
customUpStreamHttpProxy ?? UpStreamHttpProxy, customUpStreamHttpsProxy ?? UpStreamHttpsProxy, args.ProxyClient.ClientStream); customUpStreamHttpProxy ?? UpStreamHttpProxy, customUpStreamHttpsProxy ?? UpStreamHttpsProxy, args.ProxyClient.ClientStream);
} }
args.WebSession.Request.RequestLocked = true; args.WebSession.Request.RequestLocked = true;
//If request was cancelled by user then dispose the client //If request was cancelled by user then dispose the client
if (args.WebSession.Request.CancelRequest) if (args.WebSession.Request.CancelRequest)
{ {
...@@ -344,23 +360,25 @@ namespace Titanium.Web.Proxy ...@@ -344,23 +360,25 @@ namespace Titanium.Web.Proxy
return; return;
} }
if (CloseConnection && connection != null) if (CloseConnection)
{ {
//dispose //dispose
connection.Dispose(); connection?.Dispose();
} }
} }
/// <summary> /// <summary>
/// This is the core request handler method for a particular connection from client /// This is the core request handler method for a particular connection from client
/// </summary> /// </summary>
/// <param name="client"></param> /// <param name="client"></param>
/// <param name="processId"></param>
/// <param name="httpCmd"></param> /// <param name="httpCmd"></param>
/// <param name="clientStream"></param> /// <param name="clientStream"></param>
/// <param name="clientStreamReader"></param> /// <param name="clientStreamReader"></param>
/// <param name="clientStreamWriter"></param> /// <param name="clientStreamWriter"></param>
/// <param name="httpsHostName"></param> /// <param name="httpsHostName"></param>
/// <returns></returns> /// <returns></returns>
private async Task HandleHttpSessionRequest(TcpClient client, string httpCmd, Stream clientStream, private async Task HandleHttpSessionRequest(TcpClient client, int processId, string httpCmd, Stream clientStream,
CustomBinaryReader clientStreamReader, StreamWriter clientStreamWriter, string httpsHostName, List<HttpHeader> connectHeaders, ExternalProxy customUpStreamHttpProxy = null, ExternalProxy customUpStreamHttpsProxy = null) CustomBinaryReader clientStreamReader, StreamWriter clientStreamWriter, string httpsHostName, List<HttpHeader> connectHeaders, ExternalProxy customUpStreamHttpProxy = null, ExternalProxy customUpStreamHttpsProxy = null)
{ {
TcpConnection connection = null; TcpConnection connection = null;
...@@ -378,6 +396,8 @@ namespace Titanium.Web.Proxy ...@@ -378,6 +396,8 @@ namespace Titanium.Web.Proxy
var args = new SessionEventArgs(BUFFER_SIZE, HandleHttpSessionResponse); var args = new SessionEventArgs(BUFFER_SIZE, HandleHttpSessionResponse);
args.ProxyClient.TcpClient = client; args.ProxyClient.TcpClient = client;
args.WebSession.ConnectHeaders = connectHeaders; args.WebSession.ConnectHeaders = connectHeaders;
args.WebSession.ProcessId = processId;
try try
{ {
//break up the line into three components (method, remote URL & Http Version) //break up the line into three components (method, remote URL & Http Version)
...@@ -450,7 +470,6 @@ namespace Titanium.Web.Proxy ...@@ -450,7 +470,6 @@ namespace Titanium.Web.Proxy
break; break;
} }
PrepareRequestHeaders(args.WebSession.Request.RequestHeaders, args.WebSession); PrepareRequestHeaders(args.WebSession.Request.RequestHeaders, args.WebSession);
args.WebSession.Request.Host = args.WebSession.Request.RequestUri.Authority; args.WebSession.Request.Host = args.WebSession.Request.RequestUri.Authority;
...@@ -558,7 +577,6 @@ namespace Titanium.Web.Proxy ...@@ -558,7 +577,6 @@ namespace Titanium.Web.Proxy
webRequest.Request.RequestHeaders = requestHeaders; webRequest.Request.RequestHeaders = requestHeaders;
} }
/// <summary> /// <summary>
/// This is called when the request is PUT/POST to read the body /// This is called when the request is PUT/POST to read the body
/// </summary> /// </summary>
...@@ -580,9 +598,7 @@ namespace Titanium.Web.Proxy ...@@ -580,9 +598,7 @@ namespace Titanium.Web.Proxy
else if (args.WebSession.Request.IsChunked) else if (args.WebSession.Request.IsChunked)
{ {
await args.ProxyClient.ClientStreamReader.CopyBytesToStreamChunked(BUFFER_SIZE, postStream); await args.ProxyClient.ClientStreamReader.CopyBytesToStreamChunked(BUFFER_SIZE, postStream);
} }
} }
} }
} }
\ No newline at end of file
using System.Net; using System.Net;
using Titanium.Web.Proxy.Helpers; using Titanium.Web.Proxy.Helpers;
namespace Titanium.Web.Proxy.Tcp namespace Titanium.Web.Proxy.Tcp
{ {
/// <summary> /// <summary>
/// Represents a managed interface of IP Helper API TcpRow struct /// Represents a managed interface of IP Helper API TcpRow struct
/// <see cref="http://msdn2.microsoft.com/en-us/library/aa366913.aspx"/> /// <see cref="http://msdn2.microsoft.com/en-us/library/aa366913.aspx"/>
/// </summary> /// </summary>
internal class TcpRow internal class TcpRow
{ {
/// <summary> /// <summary>
/// Initializes a new instance of the <see cref="TcpRow"/> class. /// Initializes a new instance of the <see cref="TcpRow"/> class.
/// </summary> /// </summary>
/// <param name="tcpRow">TcpRow struct.</param> /// <param name="tcpRow">TcpRow struct.</param>
public TcpRow(NativeMethods.TcpRow tcpRow) public TcpRow(NativeMethods.TcpRow tcpRow)
{ {
ProcessId = tcpRow.owningPid; ProcessId = tcpRow.owningPid;
int localPort = (tcpRow.localPort1 << 8) + (tcpRow.localPort2) + (tcpRow.localPort3 << 24) + (tcpRow.localPort4 << 16); int localPort = (tcpRow.localPort1 << 8) + (tcpRow.localPort2) + (tcpRow.localPort3 << 24) + (tcpRow.localPort4 << 16);
long localAddress = tcpRow.localAddr; long localAddress = tcpRow.localAddr;
LocalEndPoint = new IPEndPoint(localAddress, localPort); LocalEndPoint = new IPEndPoint(localAddress, localPort);
}
int remotePort = (tcpRow.remotePort1 << 8) + (tcpRow.remotePort2) + (tcpRow.remotePort3 << 24) + (tcpRow.remotePort4 << 16);
/// <summary> long remoteAddress = tcpRow.remoteAddr;
/// Gets the local end point. RemoteEndPoint = new IPEndPoint(remoteAddress, remotePort);
/// </summary> }
public IPEndPoint LocalEndPoint { get; private set; }
/// <summary>
/// <summary> /// Gets the local end point.
/// Gets the process identifier. /// </summary>
/// </summary> public IPEndPoint LocalEndPoint { get; private set; }
public int ProcessId { get; private set; }
} /// <summary>
/// Gets the remote end point.
/// </summary>
public IPEndPoint RemoteEndPoint { get; private set; }
/// <summary>
/// Gets the process identifier.
/// </summary>
public int ProcessId { get; private set; }
}
} }
\ No newline at end of file
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