Add SDK version telemetry header

Author: calebkiage

.vscode/launch.json

@@ -15,6 +15,17 @@
             "console": "internalConsole",
             "stopAtEntry": false
         },
+        {
+            "name": "login",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": "build",
+            "program": "${workspaceFolder}/src/bin/Debug/net6.0/mgc.dll",
+            "args": ["login", "--scopes", "User.ReadWrite Mail.ReadWrite"],
+            "cwd": "${workspaceFolder}",
+            "console": "internalConsole",
+            "stopAtEntry": false
+        },
         {
             "name": "me get",
             "type": "coreclr",

src/Authentication/AuthenticationStrategy.cs

@@ -1,5 +1,11 @@
 namespace Microsoft.Graph.Cli.Authentication;
 
+/// <summary>
+/// The authentication strategy to use
+/// </summary>
 public enum AuthenticationStrategy {
+    /// <summary>
+    /// Device code strategy
+    /// </summary>
     DeviceCode
 }

src/Authentication/LoginServiceBase.cs

@@ -1,3 +1,4 @@
+using System;
 using System.IO;
 using System.Threading.Tasks;
 using Azure.Identity;
@@ -14,7 +15,9 @@ public async Task LoginAsync(string[] scopes) {
     protected abstract Task<AuthenticationRecord> DoLoginAsync(string[] scopes);
 
     public async Task SaveSessionAsync(AuthenticationRecord record) {
-        using var authRecordStream = new FileStream(Constants.AuthRecordPath, FileMode.OpenOrCreate, FileAccess.Write);
+        var homeDir = Environment.GetEnvironmentVariable("HOME") ?? Environment.ExpandEnvironmentVariables("%HOMEDRIVE%%HOMEPATH%");
+        var recordPath = Path.Combine(homeDir, Constants.ApplicationDataDirectory, Constants.AuthRecordPath);
+        using var authRecordStream = new FileStream(recordPath, FileMode.OpenOrCreate, FileAccess.Write);
         await record.SerializeAsync(authRecordStream);
     }
 }

src/Program.cs

@@ -6,18 +6,31 @@
 using Microsoft.Kiota.Authentication.Azure;
 using Microsoft.Kiota.Http.HttpClientLibrary;
 using System.CommandLine;
+using System.Net.Http;
+using System.Reflection;
 using System.Threading.Tasks;
 
 namespace Microsoft.Graph.Cli
 {
     class Program {
+        const string SdkVersionHeaderValueFormatString = "{0}-cli-{1}.{2}.{3}";
+
         static async Task<int> Main(string[] args) {
             var authServiceFactory = new AuthenticationServiceFactory();
             var authStrategy = AuthenticationStrategy.DeviceCode;
 
             var credential = await authServiceFactory.GetTokenCredentialAsync(authStrategy);
             var authProvider = new AzureIdentityAuthenticationProvider(credential);
-            var core = new HttpClientRequestAdapter(authProvider);
+            var httpClient = new HttpClient();
+            var assemblyVersion = Assembly.GetExecutingAssembly().GetName().Version;
+            var sdkVersionHeaderValue = string.Format(
+                SdkVersionHeaderValueFormatString,
+                "graph",
+                assemblyVersion.Major,
+                assemblyVersion.Minor,
+                assemblyVersion.Build);
+            httpClient.DefaultRequestHeaders.Add("SdkVersion", sdkVersionHeaderValue);
+            var core = new HttpClientRequestAdapter(authProvider, null, null, httpClient);
             var client = new GraphClient(core);
 
             var rootCommand = client.BuildCommand();

src/msgraph-cli.csproj

@@ -10,6 +10,7 @@
     <SelfContained>false</SelfContained>
     <PublishReadyToRun>true</PublishReadyToRun>
     <AssemblyName>mgc</AssemblyName>
+    <Version>0.1.0-preview1</Version>
   </PropertyGroup>
 
   <ItemGroup>

src/utils/Constants.cs

@@ -4,6 +4,8 @@ namespace Microsoft.Graph.Cli.Utils
 {
     class Constants
     {
+        public const string ApplicationDataDirectory = ".mgc";
+
         public const string AuthRecordPath = "authRecord";
 
         public const string TokenCacheName = "MicrosoftGraph";