Use ProtocolInfo#getServerProtocolVersion for block connection, use bungee and velocity version if not ported

bungee/src/main/java/us/myles/ViaVersion/bungee/platform/BungeeViaAPI.java

@@ -2,6 +2,7 @@ package us.myles.ViaVersion.bungee.platform;
 
 import io.netty.buffer.ByteBuf;
 import lombok.NonNull;
+import net.md_5.bungee.api.ProxyServer;
 import net.md_5.bungee.api.config.ServerInfo;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 import us.myles.ViaVersion.api.Via;
@@ -23,14 +24,17 @@ public class BungeeViaAPI implements ViaAPI<ProxiedPlayer> {
     @Override
     public int getPlayerVersion(@NonNull ProxiedPlayer player) {
         if (!isPorted(player.getUniqueId()))
-            return ProtocolRegistry.SERVER_PROTOCOL;
+            return player.getPendingConnection().getVersion();
         return getPortedPlayers().get(player.getUniqueId()).get(ProtocolInfo.class).getProtocolVersion();
     }
 
     @Override
     public int getPlayerVersion(@NonNull UUID uuid) {
-        if (!isPorted(uuid))
+        if (!isPorted(uuid)) {
+            ProxiedPlayer player = ProxyServer.getInstance().getPlayer(uuid);
+            if (player != null) return player.getPendingConnection().getVersion();
             return ProtocolRegistry.SERVER_PROTOCOL;
+        }
         return getPortedPlayers().get(uuid).get(ProtocolInfo.class).getProtocolVersion();
     }
 

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/blockconnections/GlassConnectionHandler.java

@@ -2,7 +2,7 @@ package us.myles.ViaVersion.protocols.protocol1_13to1_12_2.blockconnections;
 
 import us.myles.ViaVersion.api.data.UserConnection;
 import us.myles.ViaVersion.api.minecraft.Position;
-import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
 
 public class GlassConnectionHandler extends AbstractFenceConnectionHandler {
 
@@ -34,6 +34,8 @@ public class GlassConnectionHandler extends AbstractFenceConnectionHandler {
     @Override
     protected byte getStates(UserConnection user, Position position, int blockState) {
         byte states = super.getStates(user, position, blockState);
-        return states == 0 && (ProtocolRegistry.SERVER_PROTOCOL <= 47 && ProtocolRegistry.SERVER_PROTOCOL != -1) ? 0xF : states;
+        return states == 0
+                && user.get(ProtocolInfo.class).getServerProtocolVersion() <= 47
+                && user.get(ProtocolInfo.class).getServerProtocolVersion() != -1 ? 0xF : states;
     }
 }

velocity/src/main/java/us/myles/ViaVersion/velocity/platform/VelocityViaAPI.java

@@ -1,8 +1,11 @@
 package us.myles.ViaVersion.velocity.platform;
 
+import com.velocitypowered.api.network.ProtocolVersion;
+import com.velocitypowered.api.proxy.InboundConnection;
 import com.velocitypowered.api.proxy.Player;
 import io.netty.buffer.ByteBuf;
 import lombok.NonNull;
+import us.myles.ViaVersion.VelocityPlugin;
 import us.myles.ViaVersion.api.Via;
 import us.myles.ViaVersion.api.ViaAPI;
 import us.myles.ViaVersion.api.boss.BossBar;
@@ -21,14 +24,18 @@ public class VelocityViaAPI implements ViaAPI<Player> {
     @Override
     public int getPlayerVersion(@NonNull Player player) {
         if (!isPorted(player.getUniqueId()))
-            return ProtocolRegistry.SERVER_PROTOCOL;
+            return player.getProtocolVersion().getProtocol();
         return getPortedPlayers().get(player.getUniqueId()).get(ProtocolInfo.class).getProtocolVersion();
     }
 
     @Override
     public int getPlayerVersion(@NonNull UUID uuid) {
-        if (!isPorted(uuid))
-            return ProtocolRegistry.SERVER_PROTOCOL;
+        if (!isPorted(uuid)) {
+            return VelocityPlugin.PROXY.getPlayer(uuid)
+                    .map(InboundConnection::getProtocolVersion)
+                    .map(ProtocolVersion::getProtocol)
+                    .orElse(ProtocolRegistry.SERVER_PROTOCOL);
+        }
         return getPortedPlayers().get(uuid).get(ProtocolInfo.class).getProtocolVersion();
     }