minecraft-mods/login_protection
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- Removed methods for writing/reading/checking mod versions.
- Changed accepted versions to the current mod version.
- Removed MismatchedVersionException.java.

These changes should enforce that the exact same mod versions are only allowed to play together.
This commit is contained in:
Micle
2022-10-31 19:23:17 +00:00
parent 7d228c451b
commit 701e44aec7
6 changed files with 4 additions and 66 deletions
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7
src/main/java/dev/micle/loginprotection/network/MismatchedVersionException.java
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@ -1,7 +0,0 @@
package dev.micle.loginprotection.network;
public class MismatchedVersionException extends RuntimeException {
public MismatchedVersionException(String msg) {
super(msg);
}
}

49
src/main/java/dev/micle/loginprotection/network/NetworkManager.java
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@ -5,24 +5,18 @@ import dev.micle.loginprotection.network.client.InputPacket;
import dev.micle.loginprotection.network.client.LastInputTickPacket;
import dev.micle.loginprotection.network.server.PlayerStatePacket;
import dev.micle.loginprotection.network.server.RequestLastInputTickPacket;
import net.minecraft.network.FriendlyByteBuf;
import net.minecraftforge.network.NetworkRegistry;
import net.minecraftforge.network.simple.SimpleChannel;
import java.util.regex.Pattern;
public class NetworkManager {
private static final String VERSION = LoginProtection.MOD_ID + "-net-1";
private static final Pattern NET_VERSION_PATTERN = Pattern.compile(String.format("^%s-net-\\d+$", LoginProtection.MOD_ID));
private static final Pattern MOD_VERSION_PATTERN = Pattern.compile("^\\d+\\.\\d+\\.\\d+-\\d+\\.\\d+\\.\\d+$");
private static SimpleChannel channel;
public static void init() {
// Create channel
channel = NetworkRegistry.ChannelBuilder.named(LoginProtection.createResourceLocation("network"))
.clientAcceptedVersions(v -> v.equals(VERSION))
.serverAcceptedVersions(v -> v.equals(VERSION))
.networkProtocolVersion(() -> VERSION)
.clientAcceptedVersions(v -> v.equals(LoginProtection.getVersion()))
.serverAcceptedVersions(v -> v.equals(LoginProtection.getVersion()))
.networkProtocolVersion(LoginProtection::getVersion)
.simpleChannel();
// Register packets
@ -49,43 +43,6 @@ public class NetworkManager {
.add();
}
public static void writeVersionInfo(FriendlyByteBuf buffer, boolean senderIsServer) {
buffer.writeBoolean(senderIsServer);
buffer.writeUtf(VERSION);
buffer.writeUtf(LoginProtection.getVersion());
}
public static void checkVersion(FriendlyByteBuf buffer) {
boolean senderIsServer = buffer.readBoolean();
String serverNetVersion = (senderIsServer) ? readNetVersion(buffer) : VERSION;
String serverModVersion = (senderIsServer) ? readModVersion(buffer) : LoginProtection.getVersion();
String clientNetVersion = (senderIsServer) ? VERSION : readNetVersion(buffer);
String clientModVersion = (senderIsServer) ? LoginProtection.getVersion() : readModVersion(buffer);
if (!serverNetVersion.equals(clientNetVersion) || !serverModVersion.equals(clientModVersion)) {
throw new MismatchedVersionException(String.format("The server and client are running mismatched " +
"versions of [Micle's Login Protection]. Try updating this mod on either the client and or " +
"the server. Client version is %s (%s). Server version is %s (%s).", clientModVersion,
clientNetVersion, serverModVersion, serverNetVersion));
}
}
public static String readNetVersion(FriendlyByteBuf buffer) {
String netVersion = buffer.readUtf();
if (!NET_VERSION_PATTERN.matcher(netVersion).matches()) {
return String.format("UNKNOWN (%s)", netVersion);
}
return netVersion;
}
public static String readModVersion(FriendlyByteBuf buffer) {
String modVersion = buffer.readUtf();
if (modVersion.equals("NONE") || !MOD_VERSION_PATTERN.matcher(modVersion).matches()) {
return String.format("UNKNOWN (%s)", modVersion);
}
return modVersion;
}
public static SimpleChannel getChannel() {
return channel;
}

6
src/main/java/dev/micle/loginprotection/network/client/InputPacket.java
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@ -2,7 +2,6 @@ package dev.micle.loginprotection.network.client;
import dev.micle.loginprotection.data.ProtectedPlayer;
import dev.micle.loginprotection.data.ProtectedPlayerManager;
import dev.micle.loginprotection.network.NetworkManager;
import net.minecraft.network.FriendlyByteBuf;
import net.minecraft.server.level.ServerPlayer;
import net.minecraftforge.network.NetworkEvent;
@ -10,12 +9,9 @@ import net.minecraftforge.network.NetworkEvent;
import java.util.function.Supplier;
public class InputPacket {
public static void encode(final InputPacket packet, final FriendlyByteBuf buffer) {
NetworkManager.writeVersionInfo(buffer, false);
}
public static void encode(final InputPacket packet, final FriendlyByteBuf buffer) {}
public static InputPacket decode(final FriendlyByteBuf buffer) {
NetworkManager.checkVersion(buffer);
return new InputPacket();
}

3
src/main/java/dev/micle/loginprotection/network/client/LastInputTickPacket.java
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@ -2,7 +2,6 @@ package dev.micle.loginprotection.network.client;
import dev.micle.loginprotection.data.ProtectedPlayer;
import dev.micle.loginprotection.data.ProtectedPlayerManager;
import dev.micle.loginprotection.network.NetworkManager;
import dev.micle.loginprotection.proxy.Proxy;
import dev.micle.loginprotection.setup.Config;
import net.minecraft.network.FriendlyByteBuf;
@ -22,12 +21,10 @@ public class LastInputTickPacket {
}
public static void encode(final LastInputTickPacket packet, final FriendlyByteBuf buffer) {
NetworkManager.writeVersionInfo(buffer, false);
buffer.writeInt(packet.lastInputTick);
}
public static LastInputTickPacket decode(final FriendlyByteBuf buffer) {
NetworkManager.checkVersion(buffer);
return new LastInputTickPacket(buffer.readInt());
}

3
src/main/java/dev/micle/loginprotection/network/server/PlayerStatePacket.java
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@ -1,7 +1,6 @@
package dev.micle.loginprotection.network.server;
import dev.micle.loginprotection.data.ProtectedPlayer;
import dev.micle.loginprotection.network.NetworkManager;
import dev.micle.loginprotection.proxy.Proxy;
import net.minecraft.network.FriendlyByteBuf;
import net.minecraftforge.network.NetworkEvent;
@ -16,12 +15,10 @@ public class PlayerStatePacket {
}
public static void encode(final PlayerStatePacket packet, final FriendlyByteBuf buffer) {
NetworkManager.writeVersionInfo(buffer, true);
buffer.writeUtf(packet.state.toString());
}
public static PlayerStatePacket decode(final FriendlyByteBuf buffer) {
NetworkManager.checkVersion(buffer);
return new PlayerStatePacket(ProtectedPlayer.State.valueOf(buffer.readUtf()));
}

2
src/main/java/dev/micle/loginprotection/network/server/RequestLastInputTickPacket.java
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@ -10,11 +10,9 @@ import java.util.function.Supplier;
public class RequestLastInputTickPacket {
public static void encode(final RequestLastInputTickPacket packet, final FriendlyByteBuf buffer) {
NetworkManager.writeVersionInfo(buffer, false);
}
public static RequestLastInputTickPacket decode(final FriendlyByteBuf buffer) {
NetworkManager.checkVersion(buffer);
return new RequestLastInputTickPacket();
}