fix(Hash): 修复空输入处理与 Sha256Helper 行为一致

AlianBlank · AlianBlank · commit ea57f44f8a2b · 2026-03-13T19:05:28.000+08:00
修改 Sha1Helper 对空字符串/空数组的处理方式，
返回实际的 SHA-1 哈希值而非 string.Empty，
与 Sha256Helper 行为保持一致。
diff --git a/GameFrameX.Foundation.Hash/Sha1Helper.cs b/GameFrameX.Foundation.Hash/Sha1Helper.cs
@@ -24,10 +24,10 @@ public static class Sha1Helper
     public static string ComputeHash(string input, Encoding encoding = null)
     {
         ArgumentNullException.ThrowIfNull(input, nameof(input));
-        
-        if (input.Length == 0)
+
+        if (string.IsNullOrEmpty(input))
         {
-            return string.Empty;
+            return ComputeHash(Array.Empty<byte>());
         }
 
         encoding ??= Encoding.UTF8;
@@ -44,11 +44,6 @@ public static string ComputeHash(string input, Encoding encoding = null)
     public static string ComputeHash(byte[] buffer)
     {
         ArgumentNullException.ThrowIfNull(buffer, nameof(buffer));
-        
-        if (buffer.Length == 0)
-        {
-            return string.Empty;
-        }
 
         using var sha1 = SHA1.Create();
         var hash = sha1.ComputeHash(buffer);

Original file line number	Diff line number	Diff line change
`@@ -24,10 +24,10 @@ public static class Sha1Helper`
`24`	`24`	`public static string ComputeHash(string input, Encoding encoding = null)`
`25`	`25`	`{`
`26`	`26`	`ArgumentNullException.ThrowIfNull(input, nameof(input));`
`27`		`-`
`28`		`- if (input.Length == 0)`
	`27`	`+`
	`28`	`+ if (string.IsNullOrEmpty(input))`
`29`	`29`	`{`
`30`		`- return string.Empty;`
	`30`	`+ return ComputeHash(Array.Empty<byte>());`
`31`	`31`	`}`
`32`	`32`
`33`	`33`	`encoding ??= Encoding.UTF8;`
`@@ -44,11 +44,6 @@ public static string ComputeHash(string input, Encoding encoding = null)`
`44`	`44`	`public static string ComputeHash(byte[] buffer)`
`45`	`45`	`{`
`46`	`46`	`ArgumentNullException.ThrowIfNull(buffer, nameof(buffer));`
`47`		`-`
`48`		`- if (buffer.Length == 0)`
`49`		`- {`
`50`		`- return string.Empty;`
`51`		`- }`
`52`	`47`
`53`	`48`	`using var sha1 = SHA1.Create();`
`54`	`49`	`var hash = sha1.ComputeHash(buffer);`