capabilities: advertise supported state events and member actions

Closes #858
Closes #856

Author: tulir

go.mod

@@ -15,7 +15,7 @@ require (
 	golang.org/x/sync v0.17.0
 	google.golang.org/protobuf v1.36.10
 	gopkg.in/yaml.v3 v3.0.1
-	maunium.net/go/mautrix v0.25.3-0.20251025135936-d486dba9271c
+	maunium.net/go/mautrix v0.25.3-0.20251027163910-adc035b6a555
 )
 
 require (

go.sum

@@ -111,5 +111,5 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 maunium.net/go/mauflag v1.0.0 h1:YiaRc0tEI3toYtJMRIfjP+jklH45uDHtT80nUamyD4M=
 maunium.net/go/mauflag v1.0.0/go.mod h1:nLivPOpTpHnpzEh8jEdSL9UqO9+/KBJFmNRlwKfkPeA=
-maunium.net/go/mautrix v0.25.3-0.20251025135936-d486dba9271c h1:3mRJUCCMc9QDpXVZToqKuQNoCFABldGae0HFxiuCBzE=
-maunium.net/go/mautrix v0.25.3-0.20251025135936-d486dba9271c/go.mod h1:EWgYyp2iFZP7pnSm+rufHlO8YVnA2KnoNBDpwekiAwI=
+maunium.net/go/mautrix v0.25.3-0.20251027163910-adc035b6a555 h1:6D/kRJyT+5+RRnJErNNglVwDMYU6EwQN0bRYqcdkfZw=
+maunium.net/go/mautrix v0.25.3-0.20251027163910-adc035b6a555/go.mod h1:EWgYyp2iFZP7pnSm+rufHlO8YVnA2KnoNBDpwekiAwI=

pkg/connector/capabilities.go

@@ -8,6 +8,7 @@ import (
 	"go.mau.fi/util/jsontime"
 	"go.mau.fi/util/ptr"
 	"maunium.net/go/mautrix/bridgev2"
+	"maunium.net/go/mautrix/bridgev2/database"
 	"maunium.net/go/mautrix/event"
 
 	"go.mau.fi/mautrix-whatsapp/pkg/waid"
@@ -50,7 +51,7 @@ func (wa *WhatsAppConnector) GetCapabilities() *bridgev2.NetworkGeneralCapabilit
 }
 
 func (wa *WhatsAppConnector) GetBridgeInfoVersion() (info, caps int) {
-	return 1, 5
+	return 1, 6
 }
 
 const WAMaxFileSize = 2000 * 1024 * 1024
@@ -65,7 +66,7 @@ func supportedIfFFmpeg() event.CapabilitySupportLevel {
 }
 
 func capID() string {
-	base := "fi.mau.whatsapp.capabilities.2025_10_07"
+	base := "fi.mau.whatsapp.capabilities.2025_10_27"
 	if ffmpeg.Supported() {
 		return base + "+ffmpeg"
 	}
@@ -161,6 +162,17 @@ var whatsappCaps = &event.RoomFeatures{
 			MaxSize:          WAMaxFileSize,
 		},
 	},
+	State: event.StateFeatureMap{
+		event.StateRoomName.Type:                {Level: event.CapLevelFullySupported},
+		event.StateRoomAvatar.Type:              {Level: event.CapLevelFullySupported},
+		event.StateTopic.Type:                   {Level: event.CapLevelFullySupported},
+		event.StateBeeperDisappearingTimer.Type: {Level: event.CapLevelFullySupported},
+	},
+	MemberActions: event.MemberFeatureMap{
+		event.MemberActionInvite: event.CapLevelFullySupported,
+		event.MemberActionKick:   event.CapLevelFullySupported,
+		event.MemberActionLeave:  event.CapLevelFullySupported,
+	},
 	MaxTextLength:       MaxTextLength,
 	LocationMessage:     event.CapLevelFullySupported,
 	Poll:                event.CapLevelFullySupported,
@@ -179,9 +191,16 @@ var whatsappCaps = &event.RoomFeatures{
 	DeleteChat:          true,
 }
 
+var whatsappDMCaps *event.RoomFeatures
 var whatsappCAGCaps *event.RoomFeatures
 
 func init() {
+	whatsappDMCaps = ptr.Clone(whatsappCaps)
+	whatsappDMCaps.ID = capID() + "+dm"
+	whatsappDMCaps.State = event.StateFeatureMap{
+		event.StateBeeperDisappearingTimer.Type: {Level: event.CapLevelFullySupported},
+	}
+	whatsappDMCaps.MemberActions = nil
 	whatsappCAGCaps = ptr.Clone(whatsappCaps)
 	whatsappCAGCaps.ID = capID() + "+cag"
 	whatsappCAGCaps.Reply = event.CapLevelUnsupported
@@ -191,6 +210,8 @@ func init() {
 func (wa *WhatsAppClient) GetCapabilities(ctx context.Context, portal *bridgev2.Portal) *event.RoomFeatures {
 	if portal.Metadata.(*waid.PortalMetadata).CommunityAnnouncementGroup {
 		return whatsappCAGCaps
+	} else if portal.RoomType == database.RoomTypeDM {
+		return whatsappDMCaps
 	}
 	return whatsappCaps
 }