From 47255407d022279d2e467bd5132d198ed33d5e6c Mon Sep 17 00:00:00 2001
From: CarloToso <105941898+CarloToso@users.noreply.github.com>
Date: Sun, 19 Mar 2023 12:10:40 +0100
Subject: [PATCH 1/2] remove GetContentTypeSignature()

---
 .../WebCmdlet/Common/ContentHelper.Common.cs  | 43 +++----------------
 1 file changed, 5 insertions(+), 38 deletions(-)

diff --git a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/Common/ContentHelper.Common.cs b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/Common/ContentHelper.Common.cs
index 41af8ebc6dc..bf127967ffe 100644
--- a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/Common/ContentHelper.Common.cs
+++ b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/Common/ContentHelper.Common.cs
@@ -60,28 +60,6 @@ internal static StringBuilder GetRawContentHeader(HttpResponseMessage response)
         }
 
         internal static bool IsJson(string contentType)
-        {
-            contentType = GetContentTypeSignature(contentType);
-            return CheckIsJson(contentType);
-        }
-
-        internal static bool IsText(string contentType)
-        {
-            contentType = GetContentTypeSignature(contentType);
-            return CheckIsText(contentType);
-        }
-
-        internal static bool IsXml(string contentType)
-        {
-            contentType = GetContentTypeSignature(contentType);
-            return CheckIsXml(contentType);
-        }
-
-        #endregion Internal Methods
-
-        #region Private Helper Methods
-
-        private static bool CheckIsJson(string contentType)
         {
             if (string.IsNullOrEmpty(contentType))
             {
@@ -102,7 +80,7 @@ private static bool CheckIsJson(string contentType)
             return isJson;
         }
 
-        private static bool CheckIsText(string contentType)
+        internal static bool IsText(string contentType)
         {
             if (string.IsNullOrEmpty(contentType))
             {
@@ -111,8 +89,8 @@ private static bool CheckIsText(string contentType)
 
             // Any text, xml or json types are text
             bool isText = contentType.StartsWith("text/", StringComparison.OrdinalIgnoreCase)
-                        || CheckIsXml(contentType)
-                        || CheckIsJson(contentType);
+                        || IsXml(contentType)
+                        || IsJson(contentType);
 
             // Further content type analysis is available on Windows
             if (Platform.IsWindows && !isText)
@@ -141,7 +119,7 @@ private static bool CheckIsText(string contentType)
             return isText;
         }
 
-        private static bool CheckIsXml(string contentType)
+        internal static bool IsXml(string contentType)
         {
             if (string.IsNullOrEmpty(contentType))
             {
@@ -157,17 +135,6 @@ private static bool CheckIsXml(string contentType)
             return isXml;
         }
 
-        private static string GetContentTypeSignature(string contentType)
-        {
-            if (string.IsNullOrEmpty(contentType))
-            {
-                return null;
-            }
-
-            string sig = contentType.Split(';', 2)[0].ToUpperInvariant();
-            return sig;
-        }
-
-        #endregion Private Helper Methods
+        #endregion Internal Methods
     }
 }

From f3629cea3a2100db4a824f8ab114ff2f1e635289 Mon Sep 17 00:00:00 2001
From: CarloToso <105941898+CarloToso@users.noreply.github.com>
Date: Sun, 19 Mar 2023 12:15:34 +0100
Subject: [PATCH 2/2] TryGetEncoding()

---
 .../commands/utility/WebCmdlet/StreamHelper.cs        | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/StreamHelper.cs b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/StreamHelper.cs
index 1ddaf5a5794..49cc7d43402 100644
--- a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/StreamHelper.cs
+++ b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/StreamHelper.cs
@@ -383,13 +383,7 @@ private static string StreamToString(Stream stream, Encoding encoding)
 
         internal static string DecodeStream(Stream stream, string characterSet, out Encoding encoding)
         {
-            bool isDefaultEncoding = false;
-            if (!TryGetEncoding(characterSet, out encoding))
-            {
-                // Use the default encoding if one wasn't provided
-                encoding = ContentHelper.GetDefaultEncoding();
-                isDefaultEncoding = true;
-            }
+            bool isDefaultEncoding = !TryGetEncoding(characterSet, out encoding);
 
             string content = StreamToString(stream, encoding);
             if (isDefaultEncoding)
@@ -433,7 +427,8 @@ internal static bool TryGetEncoding(string characterSet, out Encoding encoding)
             }
             catch (ArgumentException)
             {
-                encoding = null;
+                // Use the default encoding if one wasn't provided
+                encoding = ContentHelper.GetDefaultEncoding();
             }
 
             return result;