Add project files.

jeremyts · Jun 6, 2023 · bda75d7 · bda75d7
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diff --git a/XDPing.sln b/XDPing.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30011.22
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "XDPing", "XDPing\XDPing.csproj", "{02DDDBD4-90C7-453C-AFAC-3F3408328F7C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{02DDDBD4-90C7-453C-AFAC-3F3408328F7C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{02DDDBD4-90C7-453C-AFAC-3F3408328F7C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{02DDDBD4-90C7-453C-AFAC-3F3408328F7C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{02DDDBD4-90C7-453C-AFAC-3F3408328F7C}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {2C769790-38FF-4C55-8887-5AEC0A22E3DD}
+	EndGlobalSection
+EndGlobal
diff --git a/XDPing/App.config b/XDPing/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
+    </startup>
+</configuration>
diff --git a/XDPing/Program.cs b/XDPing/Program.cs
@@ -0,0 +1,148 @@
+using System;
+using System.Text;
+// Required for sockets
+using System.Net.Sockets;
+
+namespace XDPing
+{
+    class Program
+    {
+        static int Main(string[] args)
+        {
+            string deliverycontroller = string.Empty;
+            int port = 80;
+
+            for (int i = 0; i < args.Length; i++)
+            {
+                var arg = args[i].ToLower();
+                if (arg == "-deliverycontroller" || arg == "--deliverycontroller")
+                {
+                    if (args.Length >= i + 2)
+                    {
+                        deliverycontroller = args[i + 1];
+                    }
+                }
+
+                if (arg == "-port" || arg == "--port")
+                {
+                    if (args.Length >= i + 2)
+                    {
+                        int.TryParse(args[i + 1], out port);
+                    }
+                }
+            }
+
+            if (string.IsNullOrEmpty(deliverycontroller))
+            {
+                Console.WriteLine("Valid command line arguments must be supplied:");
+                Console.WriteLine("-deliverycontroller or --deliverycontroller is a required flag. This must be a Delivery Controller or Cloud Connector.");
+                Console.WriteLine("-port or --port is an optional flag. It will default to 80 if not supplied. This is the port the IRegistrar service listens on.");
+                return -1;
+            }
+
+            XDPing(deliverycontroller, port);
+
+            return 0;
+        }
+
+        /// <summary>
+        /// Performs an XDPing to make sure the Delivery Controller or Cloud Connector is in a healthy state.
+        /// It test whether the Broker service is reachable, listening and processing requests on its configured port.
+        /// We do this by issuing a blank HTTP POST requests to the Broker's IRegistrar service.
+        /// Including "Expect: 100-continue" in the body will ensure we receive a respose of "HTTP/1.1 100 Continue",
+        /// which is what we use to verify that it's in a healthy state.
+        /// </summary>
+        /// <param name="deliverycontroller"></param>
+        /// <param name="port"></param>
+        /// <returns></returns>
+        static private bool XDPing(string deliverycontroller, int port)
+        {
+            // This code has essentially been taken from the Citrix Health Assistant Tool and improved for reliability and troubleshooting purposes.
+            // I was able to reverse engineer the process by decompiling the VDAAssistant.Backend.dll, which is a component of the Citrix Health
+            // Assistant Tool.
+            string service = "http://" + deliverycontroller + ":" + port +"/Citrix/CdsController/IRegistrar";
+            string s = string.Format("POST {0} HTTP/1.1\r\nContent-Type: application/soap+xml; charset=utf-8\r\nHost: {1}:{2}\r\nContent-Length: 1\r\nExpect: 100-continue\r\nConnection: Close\r\n\r\n", (object)service, (object)deliverycontroller, (object)port);
+            StringBuilder stringBuilder = new StringBuilder();
+            stringBuilder.AppendLine("Attempting an XDPing against " + deliverycontroller + " on TCP port number " + port.ToString());
+            bool listening = false;
+            try
+            {
+                Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
+                try
+                {
+                    socket.Connect(deliverycontroller, port);
+                    if (socket.Connected)
+                    {
+                        stringBuilder.AppendLine("- Socket connected");
+                        byte[] bytes = Encoding.ASCII.GetBytes(s);
+                        // Send the string as bytes.
+                        socket.Send(bytes, bytes.Length, SocketFlags.None);
+                        stringBuilder.AppendLine("- Sent the data");
+                        byte[] numArray = new byte[21];
+                        socket.ReceiveTimeout = 5000;
+                        socket.Receive(numArray);
+                        stringBuilder.AppendLine("- Received the following 21 byte array: " + BitConverter.ToString(numArray));
+                        // ASCII conversion - string from bytes
+                        string strASCII = Encoding.ASCII.GetString(numArray, 0, numArray.Length);
+                        // UTF conversion - String from bytes  
+                        string strUTF8 = Encoding.UTF8.GetString(numArray, 0, numArray.Length);
+                        stringBuilder.AppendLine("- Converting the byte array to an ASCII string we get the output between the quotes: \"" + strASCII + "\"");
+                        stringBuilder.AppendLine("- Converting the byte array to a UTF8 string we get the output between the quotes: \"" + strUTF8 + "\"");
+                        // Send an additional single byte of 32 (space) as 1 byte with no flags.
+                        socket.Send(new byte[1] { (byte)32 }, 1, SocketFlags.None);
+                        stringBuilder.AppendLine("- Sending the following string as a byte to help clear the connection: \"" + BitConverter.ToString(new byte[1] { 32 }) + "\"");
+                        if (strASCII.Trim().IndexOf("HTTP/1.1 100 Continue", StringComparison.CurrentCultureIgnoreCase) == 0)
+                        {
+                            listening = true;
+                            stringBuilder.AppendLine("- The service is listening and healthy");
+                        }
+                        else
+                        {
+                            stringBuilder.AppendLine("- The service is not listening");
+                        }
+                    }
+                    else
+                    {
+                        stringBuilder.AppendLine("- Socket failed to connect");
+                    }
+                }
+                catch (SocketException se)
+                {
+                    stringBuilder.AppendLine("- Failed to connect to service");
+                    stringBuilder.AppendLine("- ERROR: " + se.Message);
+                }
+                catch (Exception e)
+                {
+                    stringBuilder.AppendLine("- Failed with an unexpected error");
+                    stringBuilder.AppendLine("- ERROR: " + e.Message);
+                }
+                if (socket.Connected)
+                {
+                    try
+                    {
+                        socket.Close();
+                        stringBuilder.AppendLine("- Socket closed");
+                    }
+                    catch (SocketException se)
+                    {
+                        stringBuilder.AppendLine("- Failed to close the socket");
+                        stringBuilder.AppendLine("- ERROR: " + se.Message);
+                    }
+                    catch (Exception e)
+                    {
+                        stringBuilder.AppendLine("- Failed with an unexpected error");
+                        stringBuilder.AppendLine("- ERROR: " + e.Message);
+                    }
+                }
+                socket.Dispose();
+            }
+            catch (Exception e)
+            {
+                stringBuilder.AppendLine("- Failed to create a socket");
+                stringBuilder.AppendLine("- ERROR: " + e.Message);
+            }
+            Console.WriteLine(stringBuilder.ToString().Substring(0, stringBuilder.ToString().Length - 1));
+            return listening;
+        }
+    }
+}
diff --git a/XDPing/Properties/AssemblyInfo.cs b/XDPing/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("XDPing")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("XDPing")]
+[assembly: AssemblyCopyright("Copyright ©  2022")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("02dddbd4-90c7-453c-afac-3f3408328f7c")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/XDPing/XDPing.csproj b/XDPing/XDPing.csproj
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{02DDDBD4-90C7-453C-AFAC-3F3408328F7C}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>XDPing</RootNamespace>
+    <AssemblyName>XDPing</AssemblyName>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>