Adam Van Ymeren
306 lines
10 KiB
Go
306 lines
10 KiB
Go
// mautrix-telegram - A Matrix-Telegram puppeting bridge.
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// Copyright (C) 2025 Sumner Evans
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package connector
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import (
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"context"
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"fmt"
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"time"
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"github.com/gotd/td/tg"
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"github.com/rs/zerolog"
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"maunium.net/go/mautrix/bridgev2"
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"maunium.net/go/mautrix/bridgev2/networkid"
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"maunium.net/go/mautrix/bridgev2/simplevent"
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"go.mau.fi/mautrix-telegram/pkg/connector/emojis"
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"go.mau.fi/mautrix-telegram/pkg/connector/ids"
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)
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func (t *TelegramClient) computeReactionsList(ctx context.Context, peer tg.PeerClass, msgID int, msgReactions tg.MessageReactions) (reactions []tg.MessagePeerReaction, isFull bool, customEmojis map[networkid.EmojiID]emojis.EmojiInfo, err error) {
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log := zerolog.Ctx(ctx).With().Str("fn", "computeReactionsList").Logger()
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var totalCount int
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for _, r := range msgReactions.Results {
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totalCount += r.Count
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}
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reactionsList := msgReactions.RecentReactions
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if totalCount > 0 && len(reactionsList) == 0 && !msgReactions.CanSeeList {
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// We don't know who reacted in a channel, so we can't bridge it properly either
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log.Warn().Msg("Can't see reaction list in channel")
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return
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}
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// TODO
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// if self.peer_type == "channel" and not self.megagroup:
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// # This should never happen with the previous if
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// self.log.warning(f"Can see reaction list in channel ({data!s})")
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// # return
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if len(reactionsList) < totalCount {
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if user, ok := peer.(*tg.PeerUser); ok {
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reactionsList = splitDMReactionCounts(msgReactions.Results, user.UserID, t.telegramUserID)
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// TODO
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// } else if t.isBot {
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// // Can't fetch exact reaction senders as a bot
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// return
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// TODO should calls to this be limited?
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} else if peer, err := t.inputPeerForPortalID(ctx, t.makePortalKeyFromPeer(peer).ID); err != nil {
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return nil, false, nil, fmt.Errorf("failed to get input peer: %w", err)
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} else {
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reactions, err := APICallWithUpdates(ctx, t, func() (*tg.MessagesMessageReactionsList, error) {
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return t.client.API().MessagesGetMessageReactionsList(ctx, &tg.MessagesGetMessageReactionsListRequest{
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Peer: peer, ID: msgID, Limit: 100,
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})
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})
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if err != nil {
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return nil, false, nil, fmt.Errorf("failed to get reactions list: %w", err)
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}
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reactionsList = reactions.Reactions
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}
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}
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var customEmojiIDs []int64
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for _, reaction := range reactionsList {
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if e, ok := reaction.Reaction.(*tg.ReactionCustomEmoji); ok {
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customEmojiIDs = append(customEmojiIDs, e.DocumentID)
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} else if reaction.Reaction.TypeID() != tg.ReactionEmojiTypeID {
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return nil, false, nil, fmt.Errorf("unsupported reaction type %T", reaction.Reaction)
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}
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}
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customEmojis, err = t.transferEmojisToMatrix(ctx, customEmojiIDs)
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return reactionsList, len(reactionsList) == totalCount, customEmojis, err
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}
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func computeEmojiAndID(reaction tg.ReactionClass, customEmojis map[networkid.EmojiID]emojis.EmojiInfo) (emojiID networkid.EmojiID, emoji string, err error) {
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if r, ok := reaction.(*tg.ReactionCustomEmoji); ok {
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emojiID = ids.MakeEmojiIDFromDocumentID(r.DocumentID)
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emoji = customEmojis[emojiID].Emoji
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if emoji == "" {
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emoji = string(customEmojis[emojiID].EmojiURI)
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}
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} else if r, ok := reaction.(*tg.ReactionEmoji); ok {
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emojiID = ids.MakeEmojiIDFromEmoticon(r.Emoticon)
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emoji = r.Emoticon
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} else {
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return "", "", fmt.Errorf("invalid reaction type %T", reaction)
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}
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return
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}
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func (t *TelegramClient) handleTelegramReactions(ctx context.Context, msg *tg.Message) {
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log := zerolog.Ctx(ctx).With().
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Str("handler", "handle_telegram_reactions").
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Int("message_id", msg.ID).
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Logger()
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reactionsList, isFull, customEmojis, err := t.computeReactionsList(ctx, msg.PeerID, msg.ID, msg.Reactions)
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if err != nil {
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log.Err(err).Msg("failed to compute reactions list")
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return
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}
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users := map[networkid.UserID]*bridgev2.ReactionSyncUser{}
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for _, reaction := range reactionsList {
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peer, ok := reaction.PeerID.(*tg.PeerUser)
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if !ok {
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log.Error().Type("peer_id", reaction.PeerID).Msg("unknown peer type")
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return
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}
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userID := ids.MakeUserID(peer.UserID)
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reactionLimit, err := t.getReactionLimit(ctx, userID)
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if err != nil {
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reactionLimit = 1
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log.Err(err).Int64("id", peer.UserID).Msg("failed to get reaction limit")
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}
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if _, ok := users[userID]; !ok {
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users[userID] = &bridgev2.ReactionSyncUser{HasAllReactions: isFull, MaxCount: reactionLimit}
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}
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emojiID, emoji, err := computeEmojiAndID(reaction.Reaction, customEmojis)
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if err != nil {
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log.Err(err).Msg("failed to compute emoji and ID")
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return
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}
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users[userID].Reactions = append(users[userID].Reactions, &bridgev2.BackfillReaction{
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Timestamp: time.Unix(int64(reaction.Date), 0),
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Sender: t.senderForUserID(peer.UserID),
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EmojiID: emojiID,
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Emoji: emoji,
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})
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}
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t.main.Bridge.QueueRemoteEvent(t.userLogin, &simplevent.ReactionSync{
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EventMeta: simplevent.EventMeta{
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Type: bridgev2.RemoteEventReactionSync,
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LogContext: func(c zerolog.Context) zerolog.Context {
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return c.Int("message_id", msg.ID)
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},
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PortalKey: t.makePortalKeyFromPeer(msg.PeerID),
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},
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TargetMessage: ids.GetMessageIDFromMessage(msg),
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Reactions: &bridgev2.ReactionSyncData{Users: users, HasAllUsers: isFull},
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})
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}
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func splitDMReactionCounts(res []tg.ReactionCount, theirUserID, myUserID int64) (reactions []tg.MessagePeerReaction) {
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for _, item := range res {
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if item.Count == 2 || item.ChosenOrder > 0 {
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reactions = append(reactions, tg.MessagePeerReaction{
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Reaction: item.Reaction,
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PeerID: &tg.PeerUser{UserID: myUserID},
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})
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}
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if item.Count == 2 {
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reactions = append(reactions, tg.MessagePeerReaction{
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Reaction: item.Reaction,
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PeerID: &tg.PeerUser{UserID: theirUserID},
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})
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}
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}
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return
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}
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func (t *TelegramClient) getReactionLimit(ctx context.Context, sender networkid.UserID) (limit int, err error) {
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config, err := t.getAppConfigCached(ctx)
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if err != nil {
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return 0, err
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}
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ghost, err := t.main.Bridge.GetGhostByID(ctx, sender)
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if err != nil {
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return 0, err
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}
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if ghost.Metadata.(*GhostMetadata).IsPremium {
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if maxReactions, ok := config["reactions_user_max_premium"].(float64); ok {
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return int(maxReactions), nil
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} else {
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return 3, nil
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}
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} else {
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if maxReactions, ok := config["reactions_user_max_default"].(float64); ok {
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return int(maxReactions), nil
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} else {
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return 1, nil
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}
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}
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}
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func (t *TelegramClient) pollForReactions(ctx context.Context, portalKey networkid.PortalKey, inputPeer tg.InputPeerClass) error {
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log := zerolog.Ctx(ctx).With().
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Stringer("portal_key", portalKey).
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Str("action", "poll_for_reactions").
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Logger()
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log.Debug().Msg("Polling reactions for recent messages")
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messages, err := t.main.Bridge.DB.Message.GetLastNInPortal(ctx, portalKey, 20)
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if err != nil {
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return err
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}
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messageIDs := make([]int, len(messages))
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for i, msg := range messages {
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_, messageIDs[i], err = ids.ParseMessageID(msg.ID)
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if err != nil {
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return err
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}
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}
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updates, err := APICallWithUpdates(ctx, t, func() (*tg.Updates, error) {
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u, err := t.client.API().MessagesGetMessagesReactions(ctx, &tg.MessagesGetMessagesReactionsRequest{
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Peer: inputPeer,
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ID: messageIDs,
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})
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if err != nil {
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return nil, err
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}
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if updates, ok := u.(*tg.Updates); ok {
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return updates, nil
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} else {
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return nil, fmt.Errorf("unexpected updates type %T", u)
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}
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})
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if err != nil {
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return fmt.Errorf("failed to get messages reactions: %w", err)
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}
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for _, update := range updates.Updates {
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if reaction, ok := update.(*tg.UpdateMessageReactions); ok {
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dbMsg, err := t.main.Bridge.DB.Message.GetFirstPartByID(ctx, t.loginID, ids.MakeMessageID(portalKey, reaction.MsgID))
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if err != nil {
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return fmt.Errorf("failed to get message from database: %w", err)
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} else if dbMsg == nil {
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return fmt.Errorf("message not found in database: %w", err)
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}
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reactionsList, isFull, customEmojis, err := t.computeReactionsList(ctx, reaction.Peer, reaction.MsgID, reaction.Reactions)
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if err != nil {
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return fmt.Errorf("failed to compute reactions list: %w", err)
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}
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users := map[networkid.UserID]*bridgev2.ReactionSyncUser{}
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for _, reaction := range reactionsList {
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peer, ok := reaction.PeerID.(*tg.PeerUser)
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if !ok {
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return fmt.Errorf("unknown peer type %T", reaction.PeerID)
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}
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userID := ids.MakeUserID(peer.UserID)
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reactionLimit, err := t.getReactionLimit(ctx, userID)
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if err != nil {
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reactionLimit = 1
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log.Err(err).Int64("id", peer.UserID).Msg("failed to get reaction limit")
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}
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if _, ok := users[userID]; !ok {
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users[userID] = &bridgev2.ReactionSyncUser{HasAllReactions: isFull, MaxCount: reactionLimit}
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}
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emojiID, emoji, err := computeEmojiAndID(reaction.Reaction, customEmojis)
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if err != nil {
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return fmt.Errorf("failed to compute emoji and ID: %w", err)
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}
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users[userID].Reactions = append(users[userID].Reactions, &bridgev2.BackfillReaction{
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Timestamp: time.Unix(int64(reaction.Date), 0),
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Sender: t.senderForUserID(peer.UserID),
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EmojiID: emojiID,
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Emoji: emoji,
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})
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}
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t.main.Bridge.QueueRemoteEvent(t.userLogin, &simplevent.ReactionSync{
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EventMeta: simplevent.EventMeta{
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Type: bridgev2.RemoteEventReactionSync,
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LogContext: func(c zerolog.Context) zerolog.Context {
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return c.Int("message_id", reaction.MsgID)
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},
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PortalKey: dbMsg.Room,
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},
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TargetMessage: dbMsg.ID,
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Reactions: &bridgev2.ReactionSyncData{Users: users, HasAllUsers: isFull},
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})
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} else {
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log.Warn().Type("update_type", update).Msg("Unexpected update type in get reactions response")
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}
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}
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return nil
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}
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