66 lines
2.4 KiB
C#
66 lines
2.4 KiB
C#
// Copyright 2012-2026 The NATS Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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using System.Net;
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using ZB.MOM.NatsNet.Server.Protocol;
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namespace ZB.MOM.NatsNet.Server;
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/// <summary>
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/// Client-side PROXY protocol compatibility surface for Batch 3 mappings.
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/// </summary>
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public sealed partial class ClientConnection
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{
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private IPEndPoint? _proxyRemoteEndPoint;
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/// <summary>
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/// Returns the proxied remote endpoint when available, otherwise socket remote endpoint.
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/// Mirrors Go <c>proxyConn.RemoteAddr()</c>.
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/// </summary>
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public EndPoint? RemoteAddr()
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{
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lock (_mu) { return _proxyRemoteEndPoint ?? GetRemoteEndPoint(); }
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}
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internal void SetProxyRemoteAddress(ProxyProtocolAddress? address)
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{
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lock (_mu)
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{
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_proxyRemoteEndPoint = address is null
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? null
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: new IPEndPoint(address.SrcIp, address.SrcPort);
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}
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}
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internal static (int version, byte[] header) DetectProxyProtoVersion(Stream conn) =>
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ProxyProtocolParser.DetectVersion(conn);
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internal static ProxyProtocolAddress? ReadProxyProtoV1Header(Stream conn) =>
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ProxyProtocolParser.ReadV1Header(conn);
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internal static ProxyProtocolAddress? ReadProxyProtoHeader(Stream conn) =>
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ProxyProtocolParser.ReadProxyProtoHeader(conn);
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internal static ProxyProtocolAddress? ReadProxyProtoV2Header(Stream conn) =>
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ProxyProtocolParser.ReadProxyProtoV2Header(conn);
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internal static ProxyProtocolAddress? ParseProxyProtoV2Header(Stream conn, byte[] header) =>
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ProxyProtocolParser.ParseV2Header(conn, header.AsSpan());
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internal static ProxyProtocolAddress ParseIPv4Addr(Stream conn, ushort addrLen) =>
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ProxyProtocolParser.ParseIPv4Addr(conn, addrLen);
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internal static ProxyProtocolAddress ParseIPv6Addr(Stream conn, ushort addrLen) =>
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ProxyProtocolParser.ParseIPv6Addr(conn, addrLen);
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}
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