feat: mark all msg 0 as ddnet_uuid for now

This will change as soon as ddnet uuids are properly implemented

scripts/generate_messages.py

@@ -513,6 +513,7 @@ from typing import Optional
 
 import twnet_parser.msg{self.protocol_version}
 from twnet_parser.net_message import NetMessage
+from twnet_parser.ddnet_uuid import MsgDDNetUuid
 
 """
 
@@ -538,12 +539,18 @@ def match_{msg_type}{self.protocol_version}(msg_id: int, data: bytes) -> NetMess
         msg = {msg_type}{self.protocol_version}_{name_snake}.Msg{name_camel}()"""
             if_ = 'elif'
 
-        match_code += '\n\n    if msg is None:\n'
-        match_code += '        '
+        match_code += '\n'
+        match_code += '\n    # msg_id 0 is used by ddnet uuid messages'
+        match_code += '\n    # do not crash on those'
+        match_code += '\n    '
+        match_code += 'if msg is None:\n'
+        match_code += '        if msg_id != 0:\n'
+        match_code += '            '
         match_code += 'raise ValueError('
         match_code += 'f"Error: unknown ' \
                 + msg_type + \
                 ' message id={msg_id} data={data[0]}")\n'
+        match_code += '        msg = MsgDDNetUuid()\n'
         match_code += '\n'
         match_code += '    msg.unpack(data)\n'
         match_code += '    return msg\n'

tests/packets7/ddnet_uuid_test.py

@@ -0,0 +1,46 @@
+from twnet_parser.packet import parse7
+
+def test_parse_7_real_ddnet_07_bridge_packet():
+    data = b'\x00\x01\x04\xff\xaa\xbb\xee' \
+        b'\x40\x12\x01\x01\x12\x81\x0e\x1f\xa1\xdb\x33\x78\xb4\xfb\x16' \
+        b'\x4e\xd6\x50\x59\x26\x00\x40\x13\x02\x01\xf6\x21\xa5\xa1\xf5\x85' \
+        b'\x37\x75\x8e\x73\x41\xbe\xee\x79\xf2\xb2\x05\x3f\x41\x02\x03\x01' \
+        b'\xf9\x11\x7b\x3c\x80\x39\x34\x16\x9f\xc0\xae\xf2\xbc\xb7\x5c\x03' \
+        b'\x73\x75\x72\x76\x69\x76\x61\x6c\x00\xd8\x00\x26\xb9\x48\x92\xbe' \
+        b'\x2e\xed\xef\xa7\x41\x13\xe2\x70\x7a\x5b\x87\xd6\xaa\x71\x27\xee' \
+        b'\xc6\x49\xcc\xa7\xe8\xe8\x8b\xa1\x0a\x8a\xf7\xa0\x6b\x9c\x9d\x17' \
+        b'\x00\x40\x34\x04\x05\x73\x75\x72\x76\x69\x76\x61\x6c\x00\x8a\xf7' \
+        b'\xa0\x6b\x9c\x9d\x17\x0f\x80\x0e\xd8\x00\x26\xb9\x48\x92\xbe\x2e' \
+        b'\xed\xef\xa7\x41\x13\xe2\x70\x7a\x5b\x87\xd6\xaa\x71\x27\xee\xc6' \
+        b'\x49\xcc\xa7\xe8\xe8\x8b\xa1\x0a'
+    packet = parse7(data)
+
+    # Teeworlds 0.7 Protocol chunk: sys.12810e1f-a1db-3378-b4fb-164ed6505926
+    # Teeworlds 0.7 Protocol chunk: sys.f621a5a1-f585-3775-8e73-41beee79f2b2
+    # Teeworlds 0.7 Protocol chunk: sys.f9117b3c-8039-3416-9fc0-aef2bcb75c03
+    # Teeworlds 0.7 Protocol chunk: sys.map_change
+
+    assert packet.version == '0.7'
+
+    assert packet.header.token == b'\xff\xaa\xbb\xee'
+    assert packet.header.num_chunks == 4
+    assert packet.header.ack == 1
+
+    assert packet.header.flags.control is False
+    assert packet.header.flags.compression is False
+    assert packet.header.flags.resend is False
+    assert packet.header.flags.connless is False
+
+    assert len(packet.messages) == 4
+
+    msg = packet.messages[0]
+    assert msg.message_name == 'ddnet_uuid'
+    msg = packet.messages[1]
+    assert msg.message_name == 'ddnet_uuid'
+    msg = packet.messages[2]
+    assert msg.message_name == 'ddnet_uuid'
+
+    msg = packet.messages[3]
+    assert msg.system_message is True
+    assert msg.message_name == 'map_change'
+

twnet_parser/ddnet_uuid.py

@@ -0,0 +1,28 @@
+from typing import Literal
+
+from twnet_parser.pretty_print import PrettyPrint
+from twnet_parser.chunk_header import ChunkHeader
+
+class MsgDDNetUuid(PrettyPrint):
+    def __init__(
+            self,
+            chunk_header: ChunkHeader = ChunkHeader(),
+            payload: bytes = b''
+    ) -> None:
+        self.message_type: Literal['system', 'game'] = 'system'
+        self.message_name: str = 'ddnet_uuid'
+        self.system_message: bool = True
+        self.message_id: int = 0
+        self.header: ChunkHeader = chunk_header
+
+        self.payload: bytes = payload
+
+    # first byte of data
+    # has to be the first byte of the message payload
+    # NOT the chunk header and NOT the message id
+    def unpack(self, data: bytes) -> bool:
+        self.payload = data
+        return True
+
+    def pack(self) -> bytes:
+        return self.payload

twnet_parser/messages7/system/input.py

@@ -44,4 +44,4 @@ class MsgInput(PrettyPrint):
         return pack_int(self.ack_snapshot) + \
             pack_int(self.intended_tick) + \
             pack_int(self.input_size) + \
-            self.input.pack()
+            self.input.pack()

twnet_parser/msg_matcher/game6.py

@@ -3,6 +3,7 @@ from typing import Optional
 
 import twnet_parser.msg6
 from twnet_parser.net_message import NetMessage
+from twnet_parser.ddnet_uuid import MsgDDNetUuid
 
 import twnet_parser.messages6.game.sv_motd as \
        game6_sv_motd
@@ -109,8 +110,12 @@ def match_game6(msg_id: int, data: bytes) -> NetMessage:
     elif msg_id == twnet_parser.msg6.CL_CALL_VOTE:
         msg = game6_cl_call_vote.MsgClCallVote()
 
+    # msg_id 0 is used by ddnet uuid messages
+    # do not crash on those
     if msg is None:
-        raise ValueError(f"Error: unknown game message id={msg_id} data={data[0]}")
+        if msg_id != 0:
+            raise ValueError(f"Error: unknown game message id={msg_id} data={data[0]}")
+        msg = MsgDDNetUuid()
 
     msg.unpack(data)
     return msg

twnet_parser/msg_matcher/game7.py

@@ -3,6 +3,7 @@ from typing import Optional
 
 import twnet_parser.msg7
 from twnet_parser.net_message import NetMessage
+from twnet_parser.ddnet_uuid import MsgDDNetUuid
 
 import twnet_parser.messages7.game.sv_motd as \
        game7_sv_motd
@@ -165,8 +166,12 @@ def match_game7(msg_id: int, data: bytes) -> NetMessage:
     elif msg_id == twnet_parser.msg7.CL_COMMAND:
         msg = game7_cl_command.MsgClCommand()
 
+    # msg_id 0 is used by ddnet uuid messages
+    # do not crash on those
     if msg is None:
-        raise ValueError(f"Error: unknown game message id={msg_id} data={data[0]}")
+        if msg_id != 0:
+            raise ValueError(f"Error: unknown game message id={msg_id} data={data[0]}")
+        msg = MsgDDNetUuid()
 
     msg.unpack(data)
     return msg

twnet_parser/msg_matcher/system6.py

@@ -3,6 +3,7 @@ from typing import Optional
 
 import twnet_parser.msg6
 from twnet_parser.net_message import NetMessage
+from twnet_parser.ddnet_uuid import MsgDDNetUuid
 
 import twnet_parser.messages6.system.info as \
        system6_info
@@ -89,8 +90,12 @@ def match_system6(msg_id: int, data: bytes) -> NetMessage:
     elif msg_id == twnet_parser.msg6.RCON_CMD_REMOVE:
         msg = system6_rcon_cmd_remove.MsgRconCmdRemove()
 
+    # msg_id 0 is used by ddnet uuid messages
+    # do not crash on those
     if msg is None:
-        raise ValueError(f"Error: unknown system message id={msg_id} data={data[0]}")
+        if msg_id != 0:
+            raise ValueError(f"Error: unknown system message id={msg_id} data={data[0]}")
+        msg = MsgDDNetUuid()
 
     msg.unpack(data)
     return msg

twnet_parser/msg_matcher/system7.py

@@ -3,6 +3,7 @@ from typing import Optional
 
 import twnet_parser.msg7
 from twnet_parser.net_message import NetMessage
+from twnet_parser.ddnet_uuid import MsgDDNetUuid
 
 import twnet_parser.messages7.system.info as \
        system7_info
@@ -105,8 +106,12 @@ def match_system7(msg_id: int, data: bytes) -> NetMessage:
     elif msg_id == twnet_parser.msg7.MAPLIST_ENTRY_REM:
         msg = system7_maplist_entry_rem.MsgMaplistEntryRem()
 
+    # msg_id 0 is used by ddnet uuid messages
+    # do not crash on those
     if msg is None:
-        raise ValueError(f"Error: unknown system message id={msg_id} data={data[0]}")
+        if msg_id != 0:
+            raise ValueError(f"Error: unknown system message id={msg_id} data={data[0]}")
+        msg = MsgDDNetUuid()
 
     msg.unpack(data)
     return msg