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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| // mautrix-signal - A Matrix-Signal puppeting bridge. | ||
| // Copyright (C) 2024 Tulir Asokan | ||
| // | ||
| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Affero General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU Affero General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Affero General Public License | ||
| // along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
|
|
||
| package connector | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| "github.com/rs/zerolog" | ||
| "maunium.net/go/mautrix/bridgev2" | ||
| "maunium.net/go/mautrix/bridgev2/database" | ||
| "maunium.net/go/mautrix/bridgev2/networkid" | ||
|
|
||
| "go.mau.fi/mautrix-signal/pkg/signalmeow" | ||
| "go.mau.fi/mautrix-signal/pkg/signalmeow/types" | ||
| ) | ||
|
|
||
| func (s *SignalClient) getGroupInfo(ctx context.Context, groupID types.GroupIdentifier, minRevision uint32) (*bridgev2.PortalInfo, error) { | ||
| groupInfo, err := s.Client.RetrieveGroupByID(ctx, groupID, minRevision) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| isDM := false | ||
| isSpace := false | ||
| members := make([]networkid.UserID, len(groupInfo.Members)) | ||
| for i, member := range groupInfo.Members { | ||
| members[i] = makeUserID(member.ACI) | ||
| } | ||
| return &bridgev2.PortalInfo{ | ||
| Name: &groupInfo.Title, | ||
| Topic: &groupInfo.Description, | ||
| Avatar: s.makeGroupAvatar(groupInfo), | ||
| Disappear: &database.DisappearingSetting{ | ||
| Type: database.DisappearingTypeAfterRead, | ||
| Timer: time.Duration(groupInfo.DisappearingMessagesDuration) * time.Second, | ||
| }, | ||
| Members: members, | ||
| IsDirectChat: &isDM, | ||
| IsSpace: &isSpace, | ||
| ExtraUpdates: makeRevisionUpdater(groupInfo.Revision), | ||
| }, nil | ||
| } | ||
|
|
||
| func (s *SignalClient) makeGroupAvatar(meta signalmeow.GroupAvatarMeta) *bridgev2.Avatar { | ||
| path := meta.GetAvatarPath() | ||
| if path == nil { | ||
| return nil | ||
| } | ||
| return &bridgev2.Avatar{ | ||
| ID: makeAvatarPathID(*path), | ||
| Get: func(ctx context.Context) ([]byte, error) { | ||
| return s.Client.DownloadGroupAvatar(ctx, meta) | ||
| }, | ||
| Remove: *path == "", | ||
| } | ||
| } | ||
|
|
||
| func makeRevisionUpdater(rev uint32) func(ctx context.Context, portal *bridgev2.Portal) bool { | ||
| return func(ctx context.Context, portal *bridgev2.Portal) bool { | ||
| currentRev, _ := database.GetNumberFromMap[uint32](portal.Metadata.Extra, "revision") | ||
| if currentRev < rev { | ||
| portal.Metadata.Extra["revision"] = rev | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
| } | ||
|
|
||
| func (s *SignalClient) groupChangeToChatInfoChange(ctx context.Context, rev uint32, groupChange *signalmeow.GroupChange) *bridgev2.ChatInfoChange { | ||
| ic := &bridgev2.ChatInfoChange{ | ||
| PortalInfo: &bridgev2.PortalInfo{ | ||
| ExtraUpdates: makeRevisionUpdater(rev), | ||
| Name: groupChange.ModifyTitle, | ||
| Topic: groupChange.ModifyDescription, | ||
| Avatar: s.makeGroupAvatar(groupChange), | ||
| }, | ||
| } | ||
| if groupChange.ModifyDisappearingMessagesDuration != nil { | ||
| ic.PortalInfo.Disappear = &database.DisappearingSetting{ | ||
| Type: database.DisappearingTypeAfterRead, | ||
| Timer: time.Duration(*groupChange.ModifyDisappearingMessagesDuration) * time.Second, | ||
| } | ||
| } | ||
| // TODO handle member/permission/etc changes | ||
| return ic | ||
| } | ||
|
|
||
| func (s *SignalClient) catchUpGroup(ctx context.Context, portal *bridgev2.Portal, fromRevision, toRevision uint32, ts uint64) { | ||
| if fromRevision >= toRevision { | ||
| return | ||
| } | ||
| log := zerolog.Ctx(ctx).With(). | ||
| Str("action", "catch up group changes"). | ||
| Uint32("from_revision", fromRevision). | ||
| Uint32("to_revision", toRevision). | ||
| Logger() | ||
| if fromRevision == 0 { | ||
| log.Info().Msg("Syncing full group info") | ||
| info, err := s.getGroupInfo(ctx, types.GroupIdentifier(portal.ID), toRevision) | ||
| if err != nil { | ||
| log.Err(err).Msg("Failed to get group info") | ||
| } else { | ||
| portal.UpdateInfo(ctx, info, s.UserLogin, nil, time.Time{}) | ||
| } | ||
| } else { | ||
| log.Info().Msg("Syncing missed group changes") | ||
| groupChanges, err := s.Client.GetGroupHistoryPage(ctx, types.GroupIdentifier(portal.ID), fromRevision, false) | ||
| if err != nil { | ||
| log.Err(err).Msg("Failed to get group history page") | ||
| return | ||
| } | ||
| for _, gc := range groupChanges { | ||
| log.Debug().Uint32("current_rev", gc.GroupChange.Revision).Msg("Processing group change") | ||
| chatInfoChange := s.groupChangeToChatInfoChange(ctx, gc.GroupChange.Revision, gc.GroupChange) | ||
| portal.ProcessChatInfoChange(ctx, s.makeEventSender(gc.GroupChange.SourceACI), s.UserLogin, chatInfoChange, time.UnixMilli(int64(ts))) | ||
| if gc.GroupChange.Revision == toRevision { | ||
| break | ||
| } | ||
| } | ||
| } | ||
| } |
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