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SOCKS5 proxy, implement #100

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This commit is contained in:
creeper123123321 2021-03-25 20:58:49 -03:00
parent e73175b7c5
commit 14e5ae62bc
5 changed files with 33 additions and 12 deletions
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3
src/main/kotlin/com/github/creeper123123321/viaaas/config/VIAaaSConfig.kt
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@ -40,4 +40,7 @@ object VIAaaSConfig : Config(File("config/viaaas.yml")) {
val rateLimitWs: Double get() = this.getDouble("rate-limit-ws", 1.0)
val rateLimitConnectionMc: Double get() = this.getDouble("rate-limit-connection-mc", 10.0)
val listeningWsLimit: Int get() = this.getInt("listening-ws-limit", 16)
val backendSocks5ProxyAddress: String?
get() = this.getString("backend-socks5-proxy-address", "")!!.let { if (it.isEmpty()) null else it }
val backendSocks5ProxyPort: Int get() = this.getInt("backend-socks5-proxy-port", 9050)
}

2
src/main/kotlin/com/github/creeper123123321/viaaas/handler/BackEndInit.kt
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@ -14,7 +14,7 @@ class BackEndInit(val connectionData: ConnectionData) : ChannelInitializer<Chann
override fun initChannel(ch: Channel) {
val user = UserConnection(ch, true)
ProtocolPipeline(user)
ch.pipeline()
ch.pipeline().also { addSocks5(it) }
// "crypto"
.addLast("frame", FrameCodec())
// compress

13
src/main/kotlin/com/github/creeper123123321/viaaas/handler/Util.kt
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@ -1,11 +1,22 @@
package com.github.creeper123123321.viaaas.handler
import com.github.creeper123123321.viaaas.config.VIAaaSConfig
import com.github.creeper123123321.viaaas.packet.Packet
import com.github.creeper123123321.viaaas.send
import io.netty.channel.ChannelPipeline
import io.netty.handler.proxy.Socks5ProxyHandler
import us.myles.ViaVersion.api.protocol.ProtocolVersion
import java.net.InetSocketAddress
fun forward(handler: MinecraftHandler, packet: Packet, flush: Boolean = false) {
send(handler.other!!, packet, flush)
}
fun is1_7(handler: MinecraftHandler) = handler.data.frontVer!! <= ProtocolVersion.v1_7_6.version
fun is1_7(handler: MinecraftHandler) = handler.data.frontVer!! <= ProtocolVersion.v1_7_6.version
fun addSocks5(pipe: ChannelPipeline) {
val addr = VIAaaSConfig.backendSocks5ProxyAddress
if (addr != null) {
pipe.addFirst(Socks5ProxyHandler(InetSocketAddress(addr, VIAaaSConfig.backendSocks5ProxyPort)))
}
}

23
src/main/kotlin/com/github/creeper123123321/viaaas/handler/autoprotocol/ProtocolDetector.kt
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@ -6,23 +6,26 @@ import com.github.creeper123123321.viaaas.codec.FrameCodec
import com.github.creeper123123321.viaaas.codec.MinecraftCodec
import com.github.creeper123123321.viaaas.handler.ConnectionData
import com.github.creeper123123321.viaaas.handler.MinecraftHandler
import com.github.creeper123123321.viaaas.packet.handshake.Handshake
import com.github.creeper123123321.viaaas.handler.addSocks5
import com.github.creeper123123321.viaaas.mcLogger
import com.github.creeper123123321.viaaas.packet.handshake.Handshake
import com.github.creeper123123321.viaaas.packet.status.StatusRequest
import com.github.creeper123123321.viaaas.send
import java.util.concurrent.CompletableFuture
import java.net.InetSocketAddress
import us.myles.ViaVersion.api.protocol.ProtocolVersion
import io.netty.handler.timeout.ReadTimeoutHandler
import io.netty.channel.socket.nio.NioSocketChannel
import com.google.common.cache.CacheLoader
import java.util.concurrent.TimeUnit
import com.google.common.cache.CacheBuilder
import com.google.common.cache.CacheLoader
import io.netty.bootstrap.Bootstrap
import io.netty.channel.*
import io.netty.channel.Channel
import io.netty.channel.ChannelFuture
import io.netty.channel.ChannelInitializer
import io.netty.channel.ChannelOption
import io.netty.handler.timeout.ReadTimeoutHandler
import io.netty.util.concurrent.Future
import us.myles.ViaVersion.api.protocol.ProtocolVersion
import us.myles.ViaVersion.packets.State
import java.net.InetSocketAddress
import java.util.concurrent.CompletableFuture
import java.util.concurrent.ExecutionException
import java.util.concurrent.TimeUnit
object ProtocolDetector {
private val SERVER_VER = CacheBuilder.newBuilder()
@ -38,7 +41,7 @@ object ProtocolDetector {
.handler(object : ChannelInitializer<Channel>() {
override fun initChannel(channel: Channel) {
val data = ConnectionData(channel, state = ProtocolDetectionState(future), frontVer = -1)
channel.pipeline()
channel.pipeline().also { addSocks5(it) }
.addLast("timeout", ReadTimeoutHandler(30, TimeUnit.SECONDS))
.addLast("frame", FrameCodec())
.addLast("mc", MinecraftCodec())

4
src/main/resources/viaaas.yml
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@ -12,6 +12,10 @@ port: 25565
bind-address: localhost
# Use Netty native transport for Minecraft connections when available.
native-transport-mc: true
# Address of SOCKS5 proxy used for connecting to backend servers. Empty to disable.
backend-socks5-proxy-address: ""
# Port of SOCKS5 proxy used for connecting to backend servers.
backend-socks5-proxy-port: 9050
#
######
# Crypto