Add ReplaceLineBreaks extension and Fix bug

https://github.com/2dust/v2rayN/issues/9497

v2rayN/ServiceLib/Common/Extension.cs

@@ -118,4 +118,20 @@ public static class Extension
             destination.Add(item);
         }
     }
+
+    /// <summary>
+    /// Replace all cross-platform newline characters with the specified string
+    /// </summary>
+    public static string ReplaceLineBreaks(this string input, string replacement)
+    {
+        if (string.IsNullOrEmpty(input))
+        {
+            return input;
+        }
+
+        // You must replace \r\n first, and then replace the single characters \r and \n.
+        return input.Replace("\r\n", replacement)
+                    .Replace("\r", replacement)
+                    .Replace("\n", replacement);
+    }
 }

v2rayN/ServiceLib/Common/Utils.cs

@@ -51,7 +51,7 @@ public class Utils
 
         try
         {
-            str = str.Replace(Environment.NewLine, string.Empty);
+            str = str.ReplaceLineBreaks(string.Empty);
             return new List<string>(str.Split(',', StringSplitOptions.RemoveEmptyEntries));
         }
         catch (Exception ex)
@@ -114,9 +114,7 @@ public class Utils
             }
 
             plainText = plainText.Trim()
-                .Replace(Environment.NewLine, "")
+                .ReplaceLineBreaks("")
-                .Replace("\n", "")
-                .Replace("\r", "")
                 .Replace('_', '/')
                 .Replace('-', '+')
                 .Replace(" ", "");
@@ -321,7 +319,7 @@ public class Utils
             return text;
         }
 
-        return text.Replace("，", ",").Replace(Environment.NewLine, ",");
+        return text.Replace(" ", "").ReplaceLineBreaks(",");
     }
 
     public static List<string> GetEnumNames<TEnum>() where TEnum : Enum