gotosocial/internal/processing/workers/util.go

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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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 <http://www.gnu.org/licenses/>.
package workers
import (
"context"
"errors"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/processing/account"
"github.com/superseriousbusiness/gotosocial/internal/processing/media"
"github.com/superseriousbusiness/gotosocial/internal/state"
)
// utilF wraps util functions used by both
// the fromClientAPI and fromFediAPI functions.
type utilF struct {
state *state.State
media *media.Processor
account *account.Processor
surface *surface
}
// wipeStatus encapsulates common logic
// used to totally delete a status + all
// its attachments, notifications, boosts,
// and timeline entries.
func (u *utilF) wipeStatus(
ctx context.Context,
statusToDelete *gtsmodel.Status,
deleteAttachments bool,
) error {
var errs gtserror.MultiError
// Either delete all attachments for this status,
// or simply unattach + clean them separately later.
//
// Reason to unattach rather than delete is that
// the poster might want to reattach them to another
// status immediately (in case of delete + redraft)
if deleteAttachments {
// todo:u.state.DB.DeleteAttachmentsForStatus
for _, id := range statusToDelete.AttachmentIDs {
if err := u.media.Delete(ctx, id); err != nil {
errs.Appendf("error deleting media: %w", err)
}
}
} else {
// todo:u.state.DB.UnattachAttachmentsForStatus
for _, id := range statusToDelete.AttachmentIDs {
if _, err := u.media.Unattach(ctx, statusToDelete.Account, id); err != nil {
errs.Appendf("error unattaching media: %w", err)
}
}
}
// delete all mention entries generated by this status
// todo:u.state.DB.DeleteMentionsForStatus
for _, id := range statusToDelete.MentionIDs {
if err := u.state.DB.DeleteMentionByID(ctx, id); err != nil {
errs.Appendf("error deleting status mention: %w", err)
}
}
// delete all notification entries generated by this status
if err := u.state.DB.DeleteNotificationsForStatus(ctx, statusToDelete.ID); err != nil {
errs.Appendf("error deleting status notifications: %w", err)
}
// delete all bookmarks that point to this status
if err := u.state.DB.DeleteStatusBookmarksForStatus(ctx, statusToDelete.ID); err != nil {
errs.Appendf("error deleting status bookmarks: %w", err)
}
// delete all faves of this status
if err := u.state.DB.DeleteStatusFavesForStatus(ctx, statusToDelete.ID); err != nil {
errs.Appendf("error deleting status faves: %w", err)
}
if pollID := statusToDelete.PollID; pollID != "" {
// Delete this poll by ID from the database.
if err := u.state.DB.DeletePollByID(ctx, pollID); err != nil {
errs.Appendf("error deleting status poll: %w", err)
}
// Delete any poll votes pointing to this poll ID.
if err := u.state.DB.DeletePollVotes(ctx, pollID); err != nil {
errs.Appendf("error deleting status poll votes: %w", err)
}
// Cancel any scheduled expiry task for poll.
_ = u.state.Workers.Scheduler.Cancel(pollID)
}
// delete all boosts for this status + remove them from timelines
boosts, err := u.state.DB.GetStatusBoosts(
// we MUST set a barebones context here,
// as depending on where it came from the
// original BoostOf may already be gone.
gtscontext.SetBarebones(ctx),
statusToDelete.ID)
if err != nil {
errs.Appendf("error fetching status boosts: %w", err)
}
for _, boost := range boosts {
if err := u.surface.deleteStatusFromTimelines(ctx, boost.ID); err != nil {
errs.Appendf("error deleting boost from timelines: %w", err)
}
if err := u.state.DB.DeleteStatusByID(ctx, boost.ID); err != nil {
errs.Appendf("error deleting boost: %w", err)
}
}
// delete this status from any and all timelines
if err := u.surface.deleteStatusFromTimelines(ctx, statusToDelete.ID); err != nil {
errs.Appendf("error deleting status from timelines: %w", err)
}
// finally, delete the status itself
if err := u.state.DB.DeleteStatusByID(ctx, statusToDelete.ID); err != nil {
errs.Appendf("error deleting status: %w", err)
}
return errs.Combine()
}
// redirectFollowers redirects all local
// followers of originAcct to targetAcct.
//
// Both accounts must be fully dereferenced
// already, and the Move must be valid.
//
// Return bool will be true if all goes OK.
func (u *utilF) redirectFollowers(
ctx context.Context,
originAcct *gtsmodel.Account,
targetAcct *gtsmodel.Account,
) bool {
// Any local followers of originAcct should
// send follow requests to targetAcct instead,
// and have followers of originAcct removed.
//
// Select local followers with barebones, since
// we only need follow.Account and we can get
// that ourselves.
followers, err := u.state.DB.GetAccountLocalFollowers(
gtscontext.SetBarebones(ctx),
originAcct.ID,
)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
log.Errorf(ctx,
"db error getting follows targeting originAcct: %v",
err,
)
return false
}
for _, follow := range followers {
// Fetch the local account that
// owns the follow targeting originAcct.
if follow.Account, err = u.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
follow.AccountID,
); err != nil {
log.Errorf(ctx,
"db error getting follow account %s: %v",
follow.AccountID, err,
)
return false
}
// Use the account processor FollowCreate
// function to send off the new follow,
// carrying over the Reblogs and Notify
// values from the old follow to the new.
//
// This will also handle cases where our
// account has already followed the target
// account, by just updating the existing
// follow of target account.
//
// Also, ensure new follow wouldn't be a
// self follow, since that will error.
if follow.AccountID != targetAcct.ID {
if _, err := u.account.FollowCreate(
ctx,
follow.Account,
&apimodel.AccountFollowRequest{
ID: targetAcct.ID,
Reblogs: follow.ShowReblogs,
Notify: follow.Notify,
},
); err != nil {
log.Errorf(ctx,
"error creating new follow for account %s: %v",
follow.AccountID, err,
)
return false
}
}
// New follow is in the process of
// sending, remove the existing follow.
// This will send out an Undo Activity for each Follow.
if _, err := u.account.FollowRemove(
ctx,
follow.Account,
follow.TargetAccountID,
); err != nil {
log.Errorf(ctx,
"error removing old follow for account %s: %v",
follow.AccountID, err,
)
return false
}
}
return true
}