From 3ec78dd38a801434e1313814c692a056a5a2b1dc Mon Sep 17 00:00:00 2001
From: wwmmzz <270447914@qq.com>
Date: Sun, 24 May 2026 13:30:54 +0800
Subject: [PATCH] Allow numeric routing ports

---
 .../Fmt/RoutingRulePortConverterTests.cs      | 48 +++++++++++++++++++
 .../Common/JsonStringOrNumberConverter.cs     | 45 +++++++++++++++++
 .../ServiceLib/Models/Entities/RulesItem.cs   |  1 +
 3 files changed, 94 insertions(+)
 create mode 100644 v2rayN/ServiceLib.Tests/Fmt/RoutingRulePortConverterTests.cs
 create mode 100644 v2rayN/ServiceLib/Common/JsonStringOrNumberConverter.cs

diff --git a/v2rayN/ServiceLib.Tests/Fmt/RoutingRulePortConverterTests.cs b/v2rayN/ServiceLib.Tests/Fmt/RoutingRulePortConverterTests.cs
new file mode 100644
index 00000000..39ecc63d
--- /dev/null
+++ b/v2rayN/ServiceLib.Tests/Fmt/RoutingRulePortConverterTests.cs
@@ -0,0 +1,48 @@
+using AwesomeAssertions;
+using ServiceLib.Models.Entities;
+using Xunit;
+
+namespace ServiceLib.Tests.Fmt;
+
+public class RoutingRulePortConverterTests
+{
+    [Fact]
+    public void DeserializeRoutingRules_PortNumber_ShouldBeAccepted()
+    {
+        var json = """
+        [
+          {
+            "type": "field",
+            "outboundTag": "direct",
+            "port": 53
+          }
+        ]
+        """;
+
+        var rules = JsonUtils.Deserialize<List<RulesItem>>(json);
+
+        rules.Should().NotBeNull();
+        rules!.Should().HaveCount(1);
+        rules[0].Port.Should().Be("53");
+    }
+
+    [Fact]
+    public void DeserializeRoutingRules_PortStringRange_ShouldStillWork()
+    {
+        var json = """
+        [
+          {
+            "type": "field",
+            "outboundTag": "proxy",
+            "port": "0-65535"
+          }
+        ]
+        """;
+
+        var rules = JsonUtils.Deserialize<List<RulesItem>>(json);
+
+        rules.Should().NotBeNull();
+        rules!.Should().HaveCount(1);
+        rules[0].Port.Should().Be("0-65535");
+    }
+}
diff --git a/v2rayN/ServiceLib/Common/JsonStringOrNumberConverter.cs b/v2rayN/ServiceLib/Common/JsonStringOrNumberConverter.cs
new file mode 100644
index 00000000..882a7c45
--- /dev/null
+++ b/v2rayN/ServiceLib/Common/JsonStringOrNumberConverter.cs
@@ -0,0 +1,45 @@
+namespace ServiceLib.Common;
+
+/// <summary>
+/// Accepts either a JSON string or number and stores the value as a string.
+/// This keeps existing routing rule storage intact while allowing numeric clipboard input.
+/// </summary>
+public sealed class JsonStringOrNumberConverter : JsonConverter<string?>
+{
+    public override string? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    {
+        return reader.TokenType switch
+        {
+            JsonTokenType.String => reader.GetString(),
+            JsonTokenType.Number => ReadNumber(reader),
+            JsonTokenType.Null => null,
+            _ => throw new JsonException($"Unexpected token {reader.TokenType} for string-or-number value.")
+        };
+    }
+
+    public override void Write(Utf8JsonWriter writer, string? value, JsonSerializerOptions options)
+    {
+        if (value == null)
+        {
+            writer.WriteNullValue();
+            return;
+        }
+
+        writer.WriteStringValue(value);
+    }
+
+    private static string ReadNumber(Utf8JsonReader reader)
+    {
+        if (reader.TryGetInt64(out var longValue))
+        {
+            return longValue.ToString(System.Globalization.CultureInfo.InvariantCulture);
+        }
+
+        if (reader.TryGetDouble(out var doubleValue))
+        {
+            return doubleValue.ToString(System.Globalization.CultureInfo.InvariantCulture);
+        }
+
+        return reader.GetDecimal().ToString(System.Globalization.CultureInfo.InvariantCulture);
+    }
+}
diff --git a/v2rayN/ServiceLib/Models/Entities/RulesItem.cs b/v2rayN/ServiceLib/Models/Entities/RulesItem.cs
index 5c7c07d8..63349df7 100644
--- a/v2rayN/ServiceLib/Models/Entities/RulesItem.cs
+++ b/v2rayN/ServiceLib/Models/Entities/RulesItem.cs
@@ -5,6 +5,7 @@ public class RulesItem
 {
     public string Id { get; set; }
     public string? Type { get; set; }
+    [JsonConverter(typeof(JsonStringOrNumberConverter))]
     public string? Port { get; set; }
     public string? Network { get; set; }
     public List<string>? InboundTag { get; set; }