45 lines
1.7 KiB
C#
45 lines
1.7 KiB
C#
using System.Text.RegularExpressions;
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namespace GodotTools.IdeMessaging
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{
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public class ClientHandshake : IHandshake
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{
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private static readonly string ClientHandshakeBase = $"{Peer.ClientHandshakeName},Version={Peer.ProtocolVersionMajor}.{Peer.ProtocolVersionMinor}.{Peer.ProtocolVersionRevision}";
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private static readonly string ServerHandshakePattern = $@"{Regex.Escape(Peer.ServerHandshakeName)},Version=([0-9]+)\.([0-9]+)\.([0-9]+),([_a-zA-Z][_a-zA-Z0-9]{{0,63}})";
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public string GetHandshakeLine(string identity) => $"{ClientHandshakeBase},{identity}";
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public bool IsValidPeerHandshake(string handshake, out string identity, ILogger logger)
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{
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identity = null;
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var match = Regex.Match(handshake, ServerHandshakePattern);
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if (!match.Success)
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return false;
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if (!uint.TryParse(match.Groups[1].Value, out uint serverMajor) || Peer.ProtocolVersionMajor != serverMajor)
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{
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logger.LogDebug("Incompatible major version: " + match.Groups[1].Value);
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return false;
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}
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if (!uint.TryParse(match.Groups[2].Value, out uint serverMinor) || Peer.ProtocolVersionMinor < serverMinor)
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{
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logger.LogDebug("Incompatible minor version: " + match.Groups[2].Value);
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return false;
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}
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if (!uint.TryParse(match.Groups[3].Value, out uint _)) // Revision
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{
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logger.LogDebug("Incompatible revision build: " + match.Groups[3].Value);
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return false;
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}
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identity = match.Groups[4].Value;
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return true;
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}
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}
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}
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