1.19 login support. No chat support yet.

- 1.19 is unlisted and 1.18.2 is still default.
- Add disconnect translations for 1.19.
- Support new 1.19 login packet format.
- Chat signing is broken, so is chat format parsing.

TODO

@@ -1,7 +1,5 @@
-- Finish online mode support.
 - Add icon and configure app.json.
 - Reduce bundled icons (1.3 MB per APK).
-- Fix issue with split-screen when connected.
 - Work on replacing auto /spawn with auto commands.
 - Handle graceful disconnect when being hit by the OOM killer?
 - https://reactnative.dev/docs/performance (esp when logging in, causes crashes)

src/minecraft/chatToJsx.tsx

@@ -183,7 +183,9 @@ const parseChatToJsx = (
       ?.flat()
       ?.filter(component => !!component)
     chat = {
-      extra: translation ?? [{ text: '[EnderChat] Unknown translation.' }]
+      extra: translation ?? [
+        { text: `[EnderChat] Unknown translation ${translatedChat.translate}.` }
+      ]
     }
   }
   const flat =

src/minecraft/connection.ts

@@ -24,7 +24,8 @@ import {
   resolveHostname,
   generateSharedSecret,
   mcHexDigest,
-  authUrl
+  authUrl,
+  protocolMap
 } from './utils'
 
 export interface ConnectionOptions {
@@ -112,7 +113,14 @@ const initiateConnection = async (opts: ConnectionOptions) => {
       socket.write(makeBasePacket(0x00, concatPacketData(handshakeData)), () =>
         // Send Login Start packet.
         socket.write(
-          makeBasePacket(0x00, concatPacketData([opts.username])),
+          makeBasePacket(
+            0x00,
+            concatPacketData(
+              opts.protocolVersion < protocolMap[1.19]
+                ? [opts.username]
+                : [opts.username, false] // TODO-1.19: Support chat signing keys.
+            )
+          ),
           () => {
             resolved = true
             resolve(conn)

src/minecraft/translations.ts

@@ -90,6 +90,34 @@ const translations: { [translation: string]: string } = {
     'Incomplete set of tags received from server.\nPlease contact server operator.',
   'multiplayer.socialInteractions.not_available':
     'Social Interactions are only available in Multiplayer worlds',
+  'multiplayer.disconnect.missing_public_key':
+    'Missing profile public key.\nThis server requires secure profiles.',
+  'multiplayer.disconnect.invalid_public_key_signature':
+    'Invalid signature for profile public key.\nTry restarting your game.',
+  'multiplayer.disconnect.invalid_public_key':
+    'Unable to parse profile public key.',
+  'multiplayer.disconnect.out_of_order_chat':
+    'Out-of-order chat packet received. Did your system time change?',
+  'disconnect.genericReason': '%s',
+  'disconnect.unknownHost': 'Unknown host',
+  'disconnect.disconnected': 'Disconnected by Server',
+  'disconnect.lost': 'Connection Lost',
+  'disconnect.kicked': 'Was kicked from the game',
+  'disconnect.timeout': 'Timed out',
+  'disconnect.closed': 'Connection closed',
+  'disconnect.loginFailed': 'Failed to log in',
+  'disconnect.loginFailedInfo': 'Failed to log in: %s',
+  'disconnect.loginFailedInfo.serversUnavailable':
+    'The authentication servers are currently not reachable. Please try again.',
+  'disconnect.loginFailedInfo.invalidSession':
+    'Invalid session (Try restarting your game and the launcher)',
+  'disconnect.loginFailedInfo.insufficientPrivileges':
+    'Multiplayer is disabled. Please check your Microsoft account settings.',
+  'disconnect.quitting': 'Quitting',
+  'disconnect.endOfStream': 'End of stream',
+  'disconnect.overflow': 'Buffer overflow',
+  'disconnect.spam': 'Kicked for spamming',
+  'disconnect.exceeded_packet_rate': 'Kicked for exceeding packet rate limit',
   'chat.editBox': 'chat',
   'chat.cannotSend': 'Cannot send chat message',
   'chat.disabled.options': 'Chat disabled in client options',

src/minecraft/utils.ts

@@ -10,6 +10,7 @@ export const protocolMap = {
   1.18: 757,
   '1.18.1': 757,
   '1.18.2': 758,
+  1.19: 759,
   auto: -1
 }
 

src/screens/ChatScreen.tsx

@@ -24,7 +24,7 @@ import {
   ClickEvent,
   ColorMap
 } from '../minecraft/chatToJsx'
-import { readVarInt, writeVarInt } from '../minecraft/utils'
+import { protocolMap, readVarInt, writeVarInt } from '../minecraft/utils'
 import { concatPacketData } from '../minecraft/packet'
 import TextField from '../components/TextField'
 import Text from '../components/Text'
@@ -134,14 +134,39 @@ const ChatScreen = ({ navigation }: { navigation: ChatNavigationProp }) => {
             .writePacket(0x03, concatPacketData(['/spawn']))
             .catch(errorHandler(addMessage, sendMessageErr))
         }
-      } else if (packet.id === 0x0f /* Chat Message (clientbound) */) {
+      } else if (
+        packet.id === 0x0f /* Chat Message (clientbound) */ &&
+        connection.connection.options.protocolVersion < protocolMap['1.19']
+      ) {
         try {
           const [chatLength, chatVarIntLength] = readVarInt(packet.data)
           const chatJson = packet.data
             .slice(chatVarIntLength, chatVarIntLength + chatLength)
             .toString('utf8')
           const position = packet.data.readInt8(chatVarIntLength + chatLength)
-          // TODO: Support position 2 and sender.
+          // TODO: Support position 2 (also in 0x5f packet) and sender for disableChat/blocked players.
+          if (position === 0 || position === 1) {
+            addMessage(parseValidJson(chatJson))
+          }
+        } catch (e) {
+          errorHandler(addMessage, parseMessageErr)(e)
+        }
+      } else if (
+        packet.id === 0x30 /* Player Chat Message (clientbound) */ &&
+        connection.connection.options.protocolVersion >= protocolMap['1.19']
+      ) {
+        // TODO-1.19: Support player chat messages.
+      } else if (
+        packet.id === 0x5f /* System Chat Message (clientbound) */ &&
+        connection.connection.options.protocolVersion >= protocolMap['1.19']
+      ) {
+        try {
+          const [chatLength, chatVarIntLength] = readVarInt(packet.data)
+          const chatJson = packet.data
+            .slice(chatVarIntLength, chatVarIntLength + chatLength)
+            .toString('utf8')
+          const position = packet.data.readInt8(chatVarIntLength + chatLength)
+          // TODO-1.19 - 3: say command, 4: msg command, 5: team msg command, 6: emote command, 7: tellraw command
           if (position === 0 || position === 1) {
             addMessage(parseValidJson(chatJson))
           }
@@ -212,9 +237,20 @@ const ChatScreen = ({ navigation }: { navigation: ChatNavigationProp }) => {
     if (msg.startsWith('/') && saveHistory) {
       setCommandHistory(ch => ch.concat([msg]))
     }
-    connection.connection
-      .writePacket(0x03, concatPacketData([msg]))
-      .catch(errorHandler(addMessage, sendMessageErr))
+    if (connection.connection.options.protocolVersion < protocolMap['1.19']) {
+      connection.connection
+        .writePacket(0x03, concatPacketData([msg]))
+        .catch(errorHandler(addMessage, sendMessageErr))
+    } else {
+      const timestamp = Buffer.alloc(8)
+      connection.connection
+        .writePacket(
+          0x04,
+          concatPacketData([msg, timestamp, writeVarInt(0), false])
+        )
+        .catch(errorHandler(addMessage, sendMessageErr))
+      // TODO-1.19: Support sending Chat Command/Chat Message/Chat Preview.
+    }
   }
 
   if (!connection) return <></> // This should never be hit hopefully.