feat: gateway capabilities

Author: Lulalaby

discord/abc.py

@@ -347,6 +347,10 @@ def __init__(
         ): ...
 
     def __str__(self) -> str:
+        flags = getattr(self, "flags", None)
+        if flags is not None and getattr(flags, "obfuscated", False):
+            return f"Obfuscated Channel ({self.id})"
+
         return self.name
 
     @property

discord/client.py

@@ -166,6 +166,10 @@ class Client:
         If not given, defaults to a regularly constructed :class:`Intents` class.
 
         .. versionadded:: 1.5
+    capabilities: :class:`GatewayCapabilities`
+        Gateway capabilities to include with the IDENTIFY payload. Defaults to
+        :meth:`GatewayCapabilities.none`. These are mostly undocumented and may not
+        be supported for bot accounts.
     member_cache_flags: :class:`MemberCacheFlags`
         Allows for finer control over how the library caches members.
         If not given, defaults to cache as much as possible with the

discord/flags.py

@@ -34,6 +34,7 @@
     "MessageFlags",
     "AttachmentFlags",
     "PublicUserFlags",
+    "GatewayCapabilities",
     "Intents",
     "MemberCacheFlags",
     "ApplicationFlags",
@@ -587,6 +588,36 @@ def all(self) -> list[UserFlags]:
         ]
 
 
+@fill_with_flags()
+class GatewayCapabilities(BaseFlags):
+    """Wraps Discord gateway capabilities.
+
+    These bits are mostly undocumented and meant for specialized clients. They are
+    sent with the IDENTIFY payload as the ``capabilities`` field.
+
+    Attributes
+    ----------
+    value: :class:`int`
+        The raw capability value. Prefer toggling via the provided attributes.
+    """
+
+    __slots__ = ()
+
+    @classmethod
+    def none(cls) -> GatewayCapabilities:
+        """Creates a :class:`GatewayCapabilities` instance with no bits enabled."""
+
+        self = cls.__new__(cls)
+        self.value = cls.DEFAULT_VALUE
+        return self
+
+    @flag_value
+    def obfuscated_channels(self):
+        """:class:`bool`: Obfuscates channel identifiers in gateway events."""
+
+        return 1 << 15
+
+
 @fill_with_flags()
 class Intents(BaseFlags):
     r"""Wraps up a Discord gateway intent flag.
@@ -1586,6 +1617,12 @@ def hide_media_download_options(self):
         """
         return 1 << 15
 
+    @flag_value
+    def obfuscated(self):
+        """:class:`bool`: Returns ``True`` if the channel is obfuscated by the gateway."""
+
+        return 1 << 17
+
 
 @fill_with_flags()
 class AttachmentFlags(BaseFlags):

discord/gateway.py

@@ -368,6 +368,7 @@ async def from_client(
         ws.session_id = session
         ws.sequence = sequence
         ws._max_heartbeat_timeout = client._connection.heartbeat_timeout
+        ws.capabilities = client._connection.capabilities.value
 
         if client._enable_debug_events:
             ws.send = ws.debug_send
@@ -432,6 +433,9 @@ async def identify(self) -> None:
                 },
                 "compress": True,
                 "large_threshold": 250,
+                "capabilities": (
+                    self.capabilities if hasattr(self, "capabilities") else 0
+                ),
             },
         }
 

discord/state.py

@@ -51,7 +51,7 @@
 from .channel import _channel_factory
 from .emoji import AppEmoji, GuildEmoji
 from .enums import ChannelType, InteractionType, ScheduledEventStatus, Status, try_enum
-from .flags import ApplicationFlags, Intents, MemberCacheFlags
+from .flags import ApplicationFlags, GatewayCapabilities, Intents, MemberCacheFlags
 from .guild import Guild
 from .integrations import _integration_factory
 from .interactions import Interaction
@@ -249,6 +249,18 @@ def __init__(
         self._status: str | None = status
         self._intents: Intents = intents
 
+        capabilities = options.get("capabilities")
+        if capabilities is None:
+            capabilities = GatewayCapabilities.none()
+        elif isinstance(capabilities, int):
+            capabilities = GatewayCapabilities._from_value(capabilities)
+        elif not isinstance(capabilities, GatewayCapabilities):
+            raise TypeError(
+                "capabilities parameter must be GatewayCapabilities or int."
+            )
+
+        self.capabilities: GatewayCapabilities = capabilities
+
         if not intents.members or cache_flags._empty:
             self.store_user = self.create_user  # type: ignore
             self.deref_user = self.deref_user_no_intents  # type: ignore