99efa104db
* Make the legacy ping handler more reliable
The Minecraft server often fails to respond to old ("legacy") pings
from old Minecraft versions using the protocol used before the switch
to Netty in Minecraft 1.7.
Due to packet fragmentation[1], we might not have all needed bytes
available when the LegacyPingHandler is called. In this case, it will
run into an error, remove the handler and continue using the modern
protocol.
This is unlikely to happen for the first two revisions of the legacy
ping protocol (used in Minecraft 1.5.x and older) since the request
consists of only one or two bytes, but happens frequently for the
last/third revision introduced in Minecraft 1.6.
It has much larger, variable packet sizes due to the inclusion of
the virtual host (the hostname/port used to connect to the server).
The solution[2] is simple: If we find more than two matching bytes,
we buffer the remaining bytes until we have enough to fully read and
respond to the request.
[1]: https://netty.io/wiki/user-guide-for-4.x.html#wiki-h3-11
[2]: https://netty.io/wiki/user-guide-for-4.x.html#wiki-h4-13
* Add legacy ping support to PaperServerListPingEvent
Add a new method to StatusClient check if the client is a legacy
client that does not support all of the features provided in the
event.
115 lines
2.6 KiB
Bash
Executable File
115 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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(
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set -e
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nms="net/minecraft/server"
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export MODLOG=""
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PS1="$"
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basedir="$(cd "$1" && pwd -P)"
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workdir="$basedir/work"
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minecraftversion=$(cat "$workdir/BuildData/info.json" | grep minecraftVersion | cut -d '"' -f 4)
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decompiledir="$workdir/Minecraft/$minecraftversion"
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export importedmcdev=""
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function import {
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export importedmcdev="$importedmcdev $1"
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file="${1}.java"
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target="$workdir/Spigot/Spigot-Server/src/main/java/$nms/$file"
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base="$decompiledir/$nms/$file"
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if [[ ! -f "$target" ]]; then
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export MODLOG="$MODLOG Imported $file from mc-dev\n";
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echo "Copying $base to $target"
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cp "$base" "$target"
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else
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echo "UN-NEEDED IMPORT: $file"
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fi
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}
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(
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cd "$workdir/Spigot/Spigot-Server/"
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lastlog=$(git log -1 --oneline)
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if [[ "$lastlog" = *"mc-dev Imports"* ]]; then
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git reset --hard HEAD^
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fi
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)
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import AxisAlignedBB
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import BaseBlockPosition
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import BiomeBase
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import BiomeBigHills
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import BiomeJungle
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import BiomeMesa
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import BlockBeacon
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import BlockChest
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import BlockFalling
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import BlockFurnace
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import BlockIceFrost
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import BlockPosition
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import BlockSnowBlock
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import BlockStateEnum
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import ChunkCache
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import ChunkCoordIntPair
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import ChunkProviderFlat
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import ChunkProviderGenerate
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import ChunkProviderHell
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import CommandAbstract
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import CommandScoreboard
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import CommandWhitelist
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import ControllerJump
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import DataBits
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import DataConverterMaterialId
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import DataInspectorBlockEntity
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import DataPalette
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import DefinedStructure
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import DragonControllerLandedFlame
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import EnchantmentManager
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import Enchantments
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import EntityLlama
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import EntitySquid
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import EntityTypes
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import EntityWaterAnimal
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import EnumItemSlot
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import EULA
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import FileIOThread
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import IHopper
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import ItemBlock
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import ItemFireworks
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import ItemMonsterEgg
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import LegacyPingHandler
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import NavigationAbstract
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import NBTTagCompound
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import NBTTagList
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import PacketPlayInUseEntity
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import PacketPlayOutMapChunk
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import PacketPlayOutPlayerListHeaderFooter
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import PacketPlayOutScoreboardTeam
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import PacketPlayOutTitle
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import PacketPlayOutUpdateTime
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import PathfinderAbstract
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import PathfinderGoal
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import PathfinderGoalFloat
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import PathfinderGoalGotoTarget
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import PathfinderWater
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import PersistentScoreboard
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import PersistentVillage
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import PlayerConnectionUtils
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import RegionFile
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import RegistryBlockID
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import RemoteControlListener
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import ServerPing
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import StructureBoundingBox
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import StructurePiece
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import StructureStart
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import TileEntityEnderChest
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import TileEntityLootable
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import WorldGenStronghold
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import WorldProvider
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cd "$workdir/Spigot/Spigot-Server/"
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rm -rf nms-patches applyPatches.sh makePatches.sh >/dev/null 2>&1
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git add . -A >/dev/null 2>&1
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echo -e "mc-dev Imports\n\n$MODLOG" | git commit . -F -
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)
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