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/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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 processing
import (
"context"
"errors"
"fmt"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/messages"
)
func (p *processor) ProcessFromFederator(ctx context.Context, federatorMsg messages.FromFederator) error {
l := p.log.WithFields(logrus.Fields{
"func": "processFromFederator",
"federatorMsg": fmt.Sprintf("%+v", federatorMsg),
})
l.Trace("entering function PROCESS FROM FEDERATOR")
switch federatorMsg.APActivityType {
case ap.ActivityCreate:
// CREATE
switch federatorMsg.APObjectType {
case ap.ObjectNote:
// CREATE A STATUS
incomingStatus, ok := federatorMsg.GTSModel.(*gtsmodel.Status)
if !ok {
return errors.New("note was not parseable as *gtsmodel.Status")
}
status, err := p.federator.EnrichRemoteStatus(ctx, federatorMsg.ReceivingAccount.Username, incomingStatus, true)
if err != nil {
return err
}
if err := p.timelineStatus(ctx, status); err != nil {
return err
}
if err := p.notifyStatus(ctx, status); err != nil {
return err
}
case ap.ObjectProfile:
// CREATE AN ACCOUNT
// nothing to do here
case ap.ActivityLike:
// CREATE A FAVE
incomingFave, ok := federatorMsg.GTSModel.(*gtsmodel.StatusFave)
if !ok {
return errors.New("like was not parseable as *gtsmodel.StatusFave")
}
if err := p.notifyFave(ctx, incomingFave); err != nil {
return err
}
case ap.ActivityFollow:
// CREATE A FOLLOW REQUEST
incomingFollowRequest, ok := federatorMsg.GTSModel.(*gtsmodel.FollowRequest)
if !ok {
return errors.New("incomingFollowRequest was not parseable as *gtsmodel.FollowRequest")
}
if err := p.notifyFollowRequest(ctx, incomingFollowRequest, federatorMsg.ReceivingAccount); err != nil {
return err
}
case ap.ActivityAnnounce:
// CREATE AN ANNOUNCE
incomingAnnounce, ok := federatorMsg.GTSModel.(*gtsmodel.Status)
if !ok {
return errors.New("announce was not parseable as *gtsmodel.Status")
}
if err := p.federator.DereferenceAnnounce(ctx, incomingAnnounce, federatorMsg.ReceivingAccount.Username); err != nil {
return fmt.Errorf("error dereferencing announce from federator: %s", err)
}
incomingAnnounceID, err := id.NewULIDFromTime(incomingAnnounce.CreatedAt)
if err != nil {
return err
}
incomingAnnounce.ID = incomingAnnounceID
if err := p.db.PutStatus(ctx, incomingAnnounce); err != nil {
return fmt.Errorf("error adding dereferenced announce to the db: %s", err)
}
if err := p.timelineStatus(ctx, incomingAnnounce); err != nil {
return err
}
if err := p.notifyAnnounce(ctx, incomingAnnounce); err != nil {
return err
}
case ap.ActivityBlock:
// CREATE A BLOCK
block, ok := federatorMsg.GTSModel.(*gtsmodel.Block)
if !ok {
return errors.New("block was not parseable as *gtsmodel.Block")
}
// remove any of the blocking account's statuses from the blocked account's timeline, and vice versa
if err := p.timelineManager.WipeStatusesFromAccountID(ctx, block.AccountID, block.TargetAccountID); err != nil {
return err
}
if err := p.timelineManager.WipeStatusesFromAccountID(ctx, block.TargetAccountID, block.AccountID); err != nil {
return err
}
// TODO: same with notifications
// TODO: same with bookmarks
}
case ap.ActivityUpdate:
// UPDATE
switch federatorMsg.APObjectType {
case ap.ObjectProfile:
// UPDATE AN ACCOUNT
incomingAccount, ok := federatorMsg.GTSModel.(*gtsmodel.Account)
if !ok {
return errors.New("profile was not parseable as *gtsmodel.Account")
}
if _, err := p.federator.EnrichRemoteAccount(ctx, federatorMsg.ReceivingAccount.Username, incomingAccount); err != nil {
return fmt.Errorf("error enriching updated account from federator: %s", err)
}
}
case ap.ActivityDelete:
// DELETE
switch federatorMsg.APObjectType {
case ap.ObjectNote:
// DELETE A STATUS
// TODO: handle side effects of status deletion here:
// 1. delete all media associated with status
// 2. delete boosts of status
// 3. etc etc etc
statusToDelete, ok := federatorMsg.GTSModel.(*gtsmodel.Status)
if !ok {
return errors.New("note was not parseable as *gtsmodel.Status")
}
// delete all attachments for this status
for _, a := range statusToDelete.AttachmentIDs {
if err := p.mediaProcessor.Delete(ctx, a); err != nil {
return err
}
}
// delete all mentions for this status
for _, m := range statusToDelete.MentionIDs {
if err := p.db.DeleteByID(ctx, m, >smodel.Mention{}); err != nil {
return err
}
}
// delete all notifications for this status
if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "status_id", Value: statusToDelete.ID}}, &[]*gtsmodel.Notification{}); err != nil {
return err
}
// remove this status from any and all timelines
return p.deleteStatusFromTimelines(ctx, statusToDelete)
case ap.ObjectProfile:
// DELETE A PROFILE/ACCOUNT
// TODO: handle side effects of account deletion here: delete all objects, statuses, media etc associated with account
}
case ap.ActivityAccept:
// ACCEPT
switch federatorMsg.APObjectType {
case ap.ActivityFollow:
// ACCEPT A FOLLOW
follow, ok := federatorMsg.GTSModel.(*gtsmodel.Follow)
if !ok {
return errors.New("follow was not parseable as *gtsmodel.Follow")
}
if err := p.notifyFollow(ctx, follow, federatorMsg.ReceivingAccount); err != nil {
return err
}
}
}
return nil
}
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