275 lines
10 KiB
Go
275 lines
10 KiB
Go
package postgres
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import (
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"context"
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"errors"
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"fmt"
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"github.com/jackc/pgx/v5"
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"telesrv/internal/domain"
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"telesrv/internal/store/postgres/sqlcgen"
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"time"
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)
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func (s *MessageStore) EditMessage(ctx context.Context, req domain.EditMessageRequest) (res domain.EditMessageResult, err error) {
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res = domain.EditMessageResult{OwnerUserID: req.OwnerUserID}
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if req.OwnerUserID == 0 {
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return res, fmt.Errorf("edit message: missing owner user id")
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}
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if req.Peer.Type != domain.PeerTypeUser || req.Peer.ID == 0 || req.ID <= 0 || req.ID > domain.MaxMessageBoxID {
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return res, domain.ErrMessageIDInvalid
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}
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if req.EditDate == 0 {
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req.EditDate = int(time.Now().Unix())
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}
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entities, err := encodeMessageEntities(req.Entities)
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if err != nil {
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return res, err
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}
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beginner, ok := s.db.(txBeginner)
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if !ok {
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return res, fmt.Errorf("edit message: db does not support transactions")
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}
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tx, err := beginner.Begin(ctx)
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if err != nil {
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return res, fmt.Errorf("begin edit message tx: %w", err)
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}
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qtx := sqlcgen.New(tx)
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committed := false
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defer func() {
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if committed {
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return
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}
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_ = tx.Rollback(ctx)
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}()
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// advisory lock 串行化与会话对端的并发写，须在行锁前获取，消除 AB-BA 死锁。
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if err := lockUsersForUpdate(ctx, tx, req.OwnerUserID, req.Peer.ID); err != nil {
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return res, fmt.Errorf("lock edit message users: %w", err)
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}
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target, err := qtx.GetMessageBoxForEdit(ctx, sqlcgen.GetMessageBoxForEditParams{
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OwnerUserID: req.OwnerUserID,
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BoxID: int32(req.ID),
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PeerType: string(req.Peer.Type),
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PeerID: req.Peer.ID,
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})
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// 空文本只在目标消息携带媒体（或本次写入媒体）时合法（清空 caption）；
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// 纯文本消息清空会留下既无 body 也无 media 的空壳。
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if err == nil && req.Message == "" && req.Media == nil && (target.MediaJson == "" || target.MediaJson == "{}") {
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return res, domain.ErrMessageEmpty
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}
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if err != nil {
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if errors.Is(err, pgx.ErrNoRows) {
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return res, domain.ErrMessageIDInvalid
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}
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return res, fmt.Errorf("get message for edit: %w", err)
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}
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oldEntities, err := decodeMessageEntities(target.EntitiesJson)
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if err != nil {
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return res, fmt.Errorf("decode target entities: %w", err)
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}
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authorEdit := target.Outgoing && target.MessageSenderID == req.OwnerUserID && target.FromUserID == req.OwnerUserID
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viaBotEdit := req.ViaBotEditBotID != 0 && target.ViaBotID == req.ViaBotEditBotID
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if !authorEdit && !viaBotEdit && !req.WebPageResolve && !validTodoParticipantEdit(req, target, oldEntities) {
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return res, domain.ErrMessageAuthorRequired
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}
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if req.Media == nil && !req.SetReplyMarkup && target.Body == req.Message && target.HideEdited == req.HideEdited && sameMessageEntities(oldEntities, req.Entities) {
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return res, domain.ErrMessageNotModified
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}
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replyMarkupJSON, err := encodeReplyMarkup(req.ReplyMarkup)
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if err != nil {
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return res, fmt.Errorf("encode edit reply markup: %w", err)
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}
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messageSenderID := target.MessageSenderID
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boxes, err := qtx.ListVisibleMessageBoxesByPrivateMessage(ctx, sqlcgen.ListVisibleMessageBoxesByPrivateMessageParams{
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OwnerUserIds: privateMessageOwnerIDs(req.OwnerUserID, req.Peer.ID),
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MessageSenderID: messageSenderID,
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PrivateMessageID: target.PrivateMessageID,
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})
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if err != nil {
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return res, fmt.Errorf("list visible edit boxes: %w", err)
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}
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if len(boxes) == 0 {
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return res, domain.ErrMessageIDInvalid
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}
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if req.WebPageResolve {
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// 链接预览就地替换：仅换 media（不碰 body/entities/edit_date，故不标记「已编辑」），
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// 逐 box reserve 账号 pts + 追加 web_page 事件 + dispatch。幂等守卫见下。
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targetMedia, err := decodeMessageMedia(target.MediaJson)
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if err != nil {
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return res, fmt.Errorf("decode target media for web page resolve: %w", err)
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}
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if !domain.IsPendingWebPageMedia(targetMedia, req.ExpectedWebPageID) {
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return res, domain.ErrMessageNotModified
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}
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mediaJSON, err := encodeMessageMedia(req.Media)
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if err != nil {
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return res, fmt.Errorf("encode resolved web page media: %w", err)
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}
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if _, err := tx.Exec(ctx, `
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UPDATE private_messages SET media = $3
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WHERE sender_user_id = $1 AND id = $2`, messageSenderID, target.PrivateMessageID, mediaJSON); err != nil {
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return res, fmt.Errorf("update private message web page media: %w", err)
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}
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if _, err := tx.Exec(ctx, `
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UPDATE message_boxes SET media = $3
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WHERE message_sender_id = $1 AND private_message_id = $2`, messageSenderID, target.PrivateMessageID, mediaJSON); err != nil {
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return res, fmt.Errorf("update message box web page media: %w", err)
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}
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res.Edited = make([]domain.EditedMessageForUser, 0, len(boxes))
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for _, box := range boxes {
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pts, err := s.reservePts(ctx, tx, box.OwnerUserID)
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if err != nil {
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return res, fmt.Errorf("allocate web page resolve pts: %w", err)
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}
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if _, err := tx.Exec(ctx, `
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UPDATE message_boxes SET pts = $3
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WHERE owner_user_id = $1 AND box_id = $2`, box.OwnerUserID, box.BoxID, int32(pts)); err != nil {
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return res, fmt.Errorf("bump message box pts for web page: %w", err)
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}
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msg, err := messageFromVisibleBoxRow(box)
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if err != nil {
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return res, err
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}
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// box 行取自 media 替换前：用解析结果与新 pts 覆盖（链接预览不改文本/实体，
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// 故共享媒体索引无需重建）。
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msg.Media = req.Media
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msg.Pts = pts
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event := domain.UpdateEvent{
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UserID: msg.OwnerUserID,
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Type: domain.UpdateEventWebPage,
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Pts: pts,
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PtsCount: 1,
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Date: msg.Date,
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Message: msg,
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}
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if err := appendUserUpdateEvent(ctx, tx, qtx, msg.OwnerUserID, event); err != nil {
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return res, fmt.Errorf("append web page event: %w", err)
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}
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if err := qtx.EnqueueDispatch(ctx, sqlcgen.EnqueueDispatchParams{
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TargetUserID: msg.OwnerUserID,
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Pts: int32(pts),
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EventType: string(domain.UpdateEventWebPage),
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ExcludeAuthKeyID: authKeyIDToInt64(req.OriginAuthKeyID),
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ExcludeSessionID: req.OriginSessionID,
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}); err != nil {
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return res, fmt.Errorf("enqueue web page dispatch: %w", err)
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}
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res.Edited = append(res.Edited, domain.EditedMessageForUser{UserID: msg.OwnerUserID, Message: msg, Event: event})
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}
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if err := tx.Commit(ctx); err != nil {
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return res, fmt.Errorf("commit web page resolve tx: %w", err)
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}
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committed = true
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return res, nil
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}
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if err := qtx.UpdatePrivateMessageEdit(ctx, sqlcgen.UpdatePrivateMessageEditParams{
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SenderUserID: messageSenderID,
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PrivateMessageID: target.PrivateMessageID,
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Body: req.Message,
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EntitiesJson: entities,
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EditDate: int32(req.EditDate),
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HideEdited: req.HideEdited,
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SetReplyMarkup: req.SetReplyMarkup,
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ReplyMarkupJson: replyMarkupJSON,
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}); err != nil {
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return res, fmt.Errorf("update private message edit: %w", err)
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}
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if req.Media != nil {
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// 媒体快照整体替换（live location 续报/停止）；先于 box 行编辑执行，
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// 让 UpdateMessageBoxEdit RETURNING 直接带回新媒体。
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mediaJSON, err := encodeMessageMedia(req.Media)
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if err != nil {
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return res, fmt.Errorf("encode edit message media: %w", err)
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}
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if _, err := tx.Exec(ctx, `
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UPDATE private_messages SET media = $3
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WHERE sender_user_id = $1 AND id = $2`, messageSenderID, target.PrivateMessageID, mediaJSON); err != nil {
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return res, fmt.Errorf("update private message media: %w", err)
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}
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if _, err := tx.Exec(ctx, `
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UPDATE message_boxes SET media = $3
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WHERE message_sender_id = $1 AND private_message_id = $2`, messageSenderID, target.PrivateMessageID, mediaJSON); err != nil {
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return res, fmt.Errorf("update message box media: %w", err)
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}
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}
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res.Edited = make([]domain.EditedMessageForUser, 0, len(boxes))
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for _, box := range boxes {
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pts, err := s.reservePts(ctx, tx, box.OwnerUserID)
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if err != nil {
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return res, fmt.Errorf("allocate edit message pts: %w", err)
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}
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updated, err := qtx.UpdateMessageBoxEdit(ctx, sqlcgen.UpdateMessageBoxEditParams{
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OwnerUserID: box.OwnerUserID,
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BoxID: box.BoxID,
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Body: req.Message,
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EntitiesJson: entities,
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EditDate: int32(req.EditDate),
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HideEdited: req.HideEdited,
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Pts: int32(pts),
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SetReplyMarkup: req.SetReplyMarkup,
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ReplyMarkupJson: replyMarkupJSON,
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})
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if err != nil {
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return res, fmt.Errorf("update message box edit: %w", err)
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}
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msg, err := messageFromUpdateEditRow(updated)
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if err != nil {
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return res, err
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}
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// 共享媒体索引(0118):编辑可换媒体、也可改文本链接实体 → 按编辑后有效媒体+实体逐 box 重建。
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if err := replaceMessageBoxMediaIndexTx(ctx, tx, msg.OwnerUserID, msg.Peer.ID, msg.ID, msg.Date, msg.Media, msg.Entities); err != nil {
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return res, err
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}
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event := domain.UpdateEvent{
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UserID: msg.OwnerUserID,
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Type: domain.UpdateEventEditMessage,
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Pts: msg.Pts,
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PtsCount: 1,
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Date: req.EditDate,
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Message: msg,
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}
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if err := appendUserUpdateEvent(ctx, tx, qtx, msg.OwnerUserID, event); err != nil {
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return res, fmt.Errorf("append edit message event: %w", err)
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}
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dispatchAuthKeyID := [8]byte{}
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dispatchSessionID := int64(0)
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if msg.OwnerUserID == req.OwnerUserID {
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dispatchAuthKeyID = req.OriginAuthKeyID
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dispatchSessionID = req.OriginSessionID
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}
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if err := qtx.EnqueueDispatch(ctx, sqlcgen.EnqueueDispatchParams{
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TargetUserID: msg.OwnerUserID,
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Pts: int32(pts),
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EventType: string(domain.UpdateEventEditMessage),
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ExcludeAuthKeyID: authKeyIDToInt64(dispatchAuthKeyID),
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ExcludeSessionID: dispatchSessionID,
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}); err != nil {
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return res, fmt.Errorf("enqueue edit message dispatch: %w", err)
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}
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res.Edited = append(res.Edited, domain.EditedMessageForUser{UserID: msg.OwnerUserID, Message: msg, Event: event})
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}
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if err := tx.Commit(ctx); err != nil {
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return res, fmt.Errorf("commit edit message tx: %w", err)
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}
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committed = true
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return res, nil
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}
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func validTodoParticipantEdit(req domain.EditMessageRequest, target sqlcgen.GetMessageBoxForEditRow, oldEntities []domain.MessageEntity) bool {
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if !req.AllowTodoParticipantMutation || req.SetReplyMarkup || req.Media == nil || req.Media.Kind != domain.MessageMediaKindTodo || req.Media.Todo == nil {
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return false
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}
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if target.MessageSenderID == req.OwnerUserID {
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return false
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}
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if target.Body != req.Message || !sameMessageEntities(oldEntities, req.Entities) {
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return false
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}
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targetMedia, err := decodeMessageMedia(target.MediaJson)
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if err != nil || targetMedia == nil || targetMedia.Kind != domain.MessageMediaKindTodo || targetMedia.Todo == nil {
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return false
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}
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return true
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}
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