131 lines
3.2 KiB
Go
131 lines
3.2 KiB
Go
package bot
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import (
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"context"
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"gitlab.com/etke.cc/go/mxidwc"
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"maunium.net/go/mautrix"
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"maunium.net/go/mautrix/event"
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)
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func (b *Bot) initSync() {
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b.lp.SetJoinPermit(b.joinPermit)
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b.lp.OnEventType(
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event.StateMember,
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func(_ mautrix.EventSource, evt *event.Event) {
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go b.onMembership(evt)
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},
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)
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b.lp.OnEventType(
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event.EventMessage,
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func(_ mautrix.EventSource, evt *event.Event) {
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go b.onMessage(evt)
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},
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)
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b.lp.OnEventType(
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event.EventReaction,
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func(_ mautrix.EventSource, evt *event.Event) {
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go b.onReaction(evt)
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},
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)
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}
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// joinPermit is called by linkpearl when processing "invite" events and deciding if rooms should be auto-joined or not
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func (b *Bot) joinPermit(evt *event.Event) bool {
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if !mxidwc.Match(evt.Sender.String(), b.allowedUsers) {
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b.log.Debug().Str("userID", evt.Sender.String()).Msg("Rejecting room invitation from unallowed user")
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return false
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}
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return true
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}
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func (b *Bot) onMembership(evt *event.Event) {
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// mautrix 0.15.x migration
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if b.ignoreBefore >= evt.Timestamp {
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return
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}
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ctx := newContext(evt)
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evtType := evt.Content.AsMember().Membership
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if evtType == event.MembershipJoin && evt.Sender == b.lp.GetClient().UserID {
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b.onBotJoin(ctx)
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return
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}
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if evtType == event.MembershipBan || evtType == event.MembershipLeave && evt.Sender != b.lp.GetClient().UserID {
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b.onLeave(ctx)
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}
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// Potentially handle other membership events in the future
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}
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func (b *Bot) onMessage(evt *event.Event) {
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// ignore own messages
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if evt.Sender == b.lp.GetClient().UserID {
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return
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}
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// mautrix 0.15.x migration
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if b.ignoreBefore >= evt.Timestamp {
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return
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}
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ctx := newContext(evt)
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b.handle(ctx)
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}
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func (b *Bot) onReaction(evt *event.Event) {
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// ignore own messages
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if evt.Sender == b.lp.GetClient().UserID {
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return
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}
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// mautrix 0.15.x migration
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if b.ignoreBefore >= evt.Timestamp {
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return
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}
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ctx := newContext(evt)
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b.handleReaction(ctx)
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}
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// onBotJoin handles the "bot joined the room" event
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func (b *Bot) onBotJoin(ctx context.Context) {
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evt := eventFromContext(ctx)
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// Workaround for membership=join events which are delivered to us twice,
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// as described in this bug report: https://github.com/matrix-org/synapse/issues/9768
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_, ok := b.handledMembershipEvents.LoadOrStore(evt.ID, true)
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if ok {
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b.log.Info().Str("eventID", evt.ID.String()).Msg("Suppressing already handled event")
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return
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}
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b.sendIntroduction(evt.RoomID)
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b.sendHelp(ctx)
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}
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func (b *Bot) onLeave(ctx context.Context) {
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evt := eventFromContext(ctx)
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_, ok := b.handledMembershipEvents.LoadOrStore(evt.ID, true)
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if ok {
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b.log.Info().Str("eventID", evt.ID.String()).Msg("Suppressing already handled event")
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return
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}
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members, err := b.lp.GetClient().StateStore.GetRoomJoinedOrInvitedMembers(evt.RoomID)
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if err != nil {
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b.log.Error().Err(err).Str("roomID", evt.RoomID.String()).Msg("cannot get joined or invited members")
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return
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}
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count := len(members)
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if count == 1 && members[0] == b.lp.GetClient().UserID {
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b.log.Info().Str("roomID", evt.RoomID.String()).Msg("no more users left in the room")
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b.runStop(ctx)
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_, err := b.lp.GetClient().LeaveRoom(evt.RoomID)
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if err != nil {
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b.Error(ctx, "cannot leave empty room: %v", err)
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}
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}
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}
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