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