72 lines
2.3 KiB
Swift
72 lines
2.3 KiB
Swift
//
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// SDLHoleMessageDecoder.swift
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// punchnet
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//
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// Created by 安礼成 on 2026/4/15.
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//
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import Foundation
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import NIOCore
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import NIOPosix
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import SwiftProtobuf
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// --MARK: 进来的消息, 这里需要采用代数类型来表示
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enum SDLHoleMessage {
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case data(SDLData)
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case control(SDLHoleControlMessage)
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}
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enum SDLHoleControlMessage {
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case register(SDLRegister)
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case registerAck(SDLRegisterAck)
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case stunProbeReply(SDLStunProbeReply)
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case stunReply(SDLStunReply)
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}
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extension SDLHoleMessage {
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static func decode(buffer: inout ByteBuffer) throws -> SDLHoleMessage? {
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guard let type = buffer.readInteger(as: UInt8.self),
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let packetType = SDLPacketType(rawValue: type) else {
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return nil
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}
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switch packetType {
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case .data:
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guard let bytes = buffer.readBytes(length: buffer.readableBytes),
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let dataPacket = try? SDLData(serializedBytes: bytes) else {
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return nil
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}
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return .data(dataPacket)
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case .register:
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guard let bytes = buffer.readBytes(length: buffer.readableBytes),
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let registerPacket = try? SDLRegister(serializedBytes: bytes) else {
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return nil
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}
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return .control(.register(registerPacket))
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case .registerAck:
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guard let bytes = buffer.readBytes(length: buffer.readableBytes),
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let registerAck = try? SDLRegisterAck(serializedBytes: bytes) else {
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return nil
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}
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return .control(.registerAck(registerAck))
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case .stunProbeReply:
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guard let bytes = buffer.readBytes(length: buffer.readableBytes),
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let stunProbeReply = try? SDLStunProbeReply(serializedBytes: bytes) else {
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return nil
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}
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return .control(.stunProbeReply(stunProbeReply))
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case .stunReply:
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guard let bytes = buffer.readBytes(length: buffer.readableBytes),
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let stunReply = try? SDLStunReply(serializedBytes: bytes) else {
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return nil
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}
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return .control(.stunReply(stunReply))
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default:
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SDLLogger.log("[SDLUDPHole] decode miss type: \(type)", for: .debug)
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return nil
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}
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}
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}
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