Use GetFolderPath(UserProfile) to obtain HOME dir (#41865)

src/DataProtection/DataProtection/src/Repositories/DefaultKeyStorageDirectories.cs

@@ -36,8 +36,7 @@ internal sealed class DefaultKeyStorageDirectories : IDefaultKeyStorageDirectori
         // Environment.GetFolderPath returns null if the user profile isn't loaded.
         var localAppDataFromSystemPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
         var localAppDataFromEnvPath = Environment.GetEnvironmentVariable("LOCALAPPDATA");
-        var userProfilePath = Environment.GetEnvironmentVariable("USERPROFILE");
-        var homePath = Environment.GetEnvironmentVariable("HOME");
+        var homePath = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
 
         if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && !string.IsNullOrEmpty(localAppDataFromSystemPath))
         {
@@ -49,15 +48,17 @@ internal sealed class DefaultKeyStorageDirectories : IDefaultKeyStorageDirectori
         {
             retVal = GetKeyStorageDirectoryFromBaseAppDataPath(localAppDataFromEnvPath);
         }
-        else if (userProfilePath != null)
-        {
-            retVal = GetKeyStorageDirectoryFromBaseAppDataPath(Path.Combine(userProfilePath, "AppData", "Local"));
-        }
         else if (homePath != null)
         {
-            // If LOCALAPPDATA and USERPROFILE are not present but HOME is,
-            // it's a good guess that this is a *NIX machine.  Use *NIX conventions for a folder name.
-            retVal = new DirectoryInfo(Path.Combine(homePath, ".aspnet", DataProtectionKeysFolderName));
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            {
+                retVal = GetKeyStorageDirectoryFromBaseAppDataPath(Path.Combine(homePath, "AppData", "Local"));
+            }
+            else
+            {
+                // Use*NIX conventions for a folder name.
+                retVal = new DirectoryInfo(Path.Combine(homePath, ".aspnet", DataProtectionKeysFolderName));
+            }
         }
         else if (!string.IsNullOrEmpty(localAppDataFromSystemPath))
         {
@@ -92,7 +93,7 @@ internal sealed class DefaultKeyStorageDirectories : IDefaultKeyStorageDirectori
         if (!String.IsNullOrEmpty(Environment.GetEnvironmentVariable("WEBSITE_INSTANCE_ID")))
         {
             var homeEnvVar = Environment.GetEnvironmentVariable("HOME");
-            if (!String.IsNullOrEmpty(homeEnvVar))
+            if (!string.IsNullOrEmpty(homeEnvVar))
             {
                 return GetKeyStorageDirectoryFromBaseAppDataPath(homeEnvVar);
             }

src/Servers/Kestrel/Core/src/KestrelConfigurationLoader.cs

@@ -493,10 +493,9 @@ public class KestrelConfigurationLoader
 
     private bool TryGetCertificatePath([NotNullWhen(true)] out string? path)
     {
-        // This will go away when we implement
-        // https://github.com/aspnet/Hosting/issues/1294
+        // See https://github.com/aspnet/Hosting/issues/1294
         var appData = Environment.GetEnvironmentVariable("APPDATA");
-        var home = Environment.GetEnvironmentVariable("HOME");
+        var home = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
         var basePath = appData != null ? Path.Combine(appData, "ASP.NET", "https") : null;
         basePath = basePath ?? (home != null ? Path.Combine(home, ".aspnet", "https") : null);
         path = basePath != null ? Path.Combine(basePath, $"{HostEnvironment.ApplicationName}.pfx") : null;

src/Shared/CertificateGeneration/MacOSCertificateManager.cs

@@ -16,7 +16,7 @@ namespace Microsoft.AspNetCore.Certificates.Generation;
 internal sealed class MacOSCertificateManager : CertificateManager
 {
     private const string CertificateSubjectRegex = "CN=(.*[^,]+).*";
-    private static readonly string MacOSUserKeyChain = Environment.GetEnvironmentVariable("HOME") + "/Library/Keychains/login.keychain-db";
+    private static readonly string MacOSUserKeyChain = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile) + "/Library/Keychains/login.keychain-db";
     private const string MacOSSystemKeyChain = "/Library/Keychains/System.keychain";
     private const string MacOSFindCertificateCommandLine = "security";
     private const string MacOSFindCertificateCommandLineArgumentsFormat = "find-certificate -c {0} -a -Z -p " + MacOSSystemKeyChain;
@@ -91,7 +91,7 @@ internal sealed class MacOSCertificateManager : CertificateManager
 
     internal override CheckCertificateStateResult CheckCertificateState(X509Certificate2 candidate, bool interactive)
     {
-        var sentinelPath = Path.Combine(Environment.GetEnvironmentVariable("HOME")!, ".dotnet", $"certificates.{candidate.GetCertHashString(HashAlgorithmName.SHA256)}.sentinel");
+        var sentinelPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".dotnet", $"certificates.{candidate.GetCertHashString(HashAlgorithmName.SHA256)}.sentinel");
         if (!interactive && !File.Exists(sentinelPath))
         {
             return new CheckCertificateStateResult(false, KeyNotAccessibleWithoutUserInteraction);