gotosocial/internal/processing/workers/fromfediapi.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"
"codeberg.org/gruf/go-kv"
"codeberg.org/gruf/go-logger/v2/level"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"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/messages"
"github.com/superseriousbusiness/gotosocial/internal/processing/account"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
// fediAPI wraps processing functions
// specifically for messages originating
// from the federation/ActivityPub API.
type fediAPI struct {
state *state.State
surface *surface
federate *federate
wipeStatus wipeStatus
account *account.Processor
}
func (p *Processor) EnqueueFediAPI(cctx context.Context, msgs ...messages.FromFediAPI) {
_ = p.workers.Federator.MustEnqueueCtx(cctx, func(wctx context.Context) {
// Copy caller ctx values to worker's.
wctx = gtscontext.WithValues(wctx, cctx)
// Process worker messages.
for _, msg := range msgs {
if err := p.ProcessFromFediAPI(wctx, msg); err != nil {
log.Errorf(wctx, "error processing fedi API message: %v", err)
}
}
})
}
func (p *Processor) ProcessFromFediAPI(ctx context.Context, fMsg messages.FromFediAPI) error {
// Allocate new log fields slice
fields := make([]kv.Field, 3, 5)
fields[0] = kv.Field{"activityType", fMsg.APActivityType}
fields[1] = kv.Field{"objectType", fMsg.APObjectType}
fields[2] = kv.Field{"toAccount", fMsg.ReceivingAccount.Username}
if fMsg.APIri != nil {
// An IRI was supplied, append to log
fields = append(fields, kv.Field{
"iri", fMsg.APIri,
})
}
// Include GTSModel in logs if appropriate.
if fMsg.GTSModel != nil &&
log.Level() >= level.DEBUG {
fields = append(fields, kv.Field{
"model", fMsg.GTSModel,
})
}
l := log.WithContext(ctx).WithFields(fields...)
l.Info("processing from fedi API")
switch fMsg.APActivityType {
// CREATE SOMETHING
case ap.ActivityCreate:
switch fMsg.APObjectType {
// CREATE NOTE/STATUS
case ap.ObjectNote:
return p.fediAPI.CreateStatus(ctx, fMsg)
// CREATE FOLLOW (request)
case ap.ActivityFollow:
return p.fediAPI.CreateFollowReq(ctx, fMsg)
// CREATE LIKE/FAVE
case ap.ActivityLike:
return p.fediAPI.CreateLike(ctx, fMsg)
// CREATE ANNOUNCE/BOOST
case ap.ActivityAnnounce:
return p.fediAPI.CreateAnnounce(ctx, fMsg)
// CREATE BLOCK
case ap.ActivityBlock:
return p.fediAPI.CreateBlock(ctx, fMsg)
// CREATE FLAG/REPORT
case ap.ActivityFlag:
return p.fediAPI.CreateFlag(ctx, fMsg)
// CREATE QUESTION
case ap.ActivityQuestion:
return p.fediAPI.CreatePollVote(ctx, fMsg)
}
// UPDATE SOMETHING
case ap.ActivityUpdate:
switch fMsg.APObjectType { //nolint:gocritic
// UPDATE NOTE/STATUS
case ap.ObjectNote:
return p.fediAPI.UpdateStatus(ctx, fMsg)
// UPDATE PROFILE/ACCOUNT
case ap.ObjectProfile:
return p.fediAPI.UpdateAccount(ctx, fMsg)
}
// DELETE SOMETHING
case ap.ActivityDelete:
switch fMsg.APObjectType {
// DELETE NOTE/STATUS
case ap.ObjectNote:
return p.fediAPI.DeleteStatus(ctx, fMsg)
// DELETE PROFILE/ACCOUNT
case ap.ObjectProfile:
return p.fediAPI.DeleteAccount(ctx, fMsg)
}
}
return gtserror.Newf("unhandled: %s %s", fMsg.APActivityType, fMsg.APObjectType)
}
func (p *fediAPI) CreateStatus(ctx context.Context, fMsg messages.FromFediAPI) error {
var (
status *gtsmodel.Status
statusable ap.Statusable
err error
)
var ok bool
switch {
case fMsg.APObjectModel != nil:
// A model was provided, extract this from message.
statusable, ok = fMsg.APObjectModel.(ap.Statusable)
if !ok {
return gtserror.Newf("cannot cast %T -> ap.Statusable", fMsg.APObjectModel)
}
// Create bare-bones model to pass
// into RefreshStatus(), which it will
// further populate and insert as new.
bareStatus := new(gtsmodel.Status)
bareStatus.Local = util.Ptr(false)
bareStatus.URI = ap.GetJSONLDId(statusable).String()
// Call RefreshStatus() to parse and process the provided
// statusable model, which it will use to further flesh out
// the bare bones model and insert it into the database.
status, statusable, err = p.federate.RefreshStatus(ctx,
fMsg.ReceivingAccount.Username,
bareStatus,
statusable,
true,
)
if err != nil {
return gtserror.Newf("error processing new status %s: %w", bareStatus.URI, err)
}
case fMsg.APIri != nil:
// Model was not set, deref with IRI (this is a forward).
// This will also cause the status to be inserted into the db.
status, statusable, err = p.federate.GetStatusByURI(ctx,
fMsg.ReceivingAccount.Username,
fMsg.APIri,
)
if err != nil {
return gtserror.Newf("error dereferencing forwarded status %s: %w", fMsg.APIri, err)
}
default:
return gtserror.New("neither APObjectModel nor APIri set")
}
if statusable == nil {
// Another thread beat us to
// creating this status! Return
// here and let the other thread
// handle timelining + notifying.
return nil
}
if status.InReplyToID != "" {
// Interaction counts changed on the replied status; uncache the
// prepared version from all timelines. The status dereferencer
// functions will ensure necessary ancestors exist before this point.
p.surface.invalidateStatusFromTimelines(ctx, status.InReplyToID)
}
if err := p.surface.timelineAndNotifyStatus(ctx, status); err != nil {
log.Errorf(ctx, "error timelining and notifying status: %v", err)
}
return nil
}
func (p *fediAPI) CreatePollVote(ctx context.Context, fMsg messages.FromFediAPI) error {
// Cast poll vote type from the worker message.
vote, ok := fMsg.GTSModel.(*gtsmodel.PollVote)
if !ok {
return gtserror.Newf("cannot cast %T -> *gtsmodel.PollVote", fMsg.GTSModel)
}
// Insert the new poll vote in the database.
if err := p.state.DB.PutPollVote(ctx, vote); err != nil {
return gtserror.Newf("error inserting poll vote in db: %w", err)
}
// Ensure the poll vote is fully populated at this point.
if err := p.state.DB.PopulatePollVote(ctx, vote); err != nil {
return gtserror.Newf("error populating poll vote from db: %w", err)
}
// Ensure the poll on the vote is fully populated to get origin status.
if err := p.state.DB.PopulatePoll(ctx, vote.Poll); err != nil {
return gtserror.Newf("error populating poll from db: %w", err)
}
// Get the origin status,
// (also set the poll on it).
status := vote.Poll.Status
status.Poll = vote.Poll
// Interaction counts changed on the source status, uncache from timelines.
p.surface.invalidateStatusFromTimelines(ctx, vote.Poll.StatusID)
if *status.Local {
// Before federating it, increment the
// poll vote counts on our local copy.
status.Poll.IncrementVotes(vote.Choices)
// These were poll votes in a local status, we need to
// federate the updated status model with latest vote counts.
if err := p.federate.UpdateStatus(ctx, status); err != nil {
log.Errorf(ctx, "error federating status update: %v", err)
}
}
return nil
}
func (p *fediAPI) CreateFollowReq(ctx context.Context, fMsg messages.FromFediAPI) error {
followRequest, ok := fMsg.GTSModel.(*gtsmodel.FollowRequest)
if !ok {
return gtserror.Newf("%T not parseable as *gtsmodel.FollowRequest", fMsg.GTSModel)
}
if err := p.state.DB.PopulateFollowRequest(ctx, followRequest); err != nil {
return gtserror.Newf("error populating follow request: %w", err)
}
if *followRequest.TargetAccount.Locked {
// Account on our instance is locked: just notify the follow request.
if err := p.surface.notifyFollowRequest(ctx, followRequest); err != nil {
log.Errorf(ctx, "error notifying follow request: %v", err)
}
return nil
}
// Account on our instance is not locked:
// Automatically accept the follow request
// and notify about the new follower.
follow, err := p.state.DB.AcceptFollowRequest(
ctx,
followRequest.AccountID,
followRequest.TargetAccountID,
)
if err != nil {
return gtserror.Newf("error accepting follow request: %w", err)
}
if err := p.federate.AcceptFollow(ctx, follow); err != nil {
log.Errorf(ctx, "error federating follow request accept: %v", err)
}
if err := p.surface.notifyFollow(ctx, follow); err != nil {
log.Errorf(ctx, "error notifying follow: %v", err)
}
return nil
}
func (p *fediAPI) CreateLike(ctx context.Context, fMsg messages.FromFediAPI) error {
fave, ok := fMsg.GTSModel.(*gtsmodel.StatusFave)
if !ok {
return gtserror.Newf("%T not parseable as *gtsmodel.StatusFave", fMsg.GTSModel)
}
// Ensure fave populated.
if err := p.state.DB.PopulateStatusFave(ctx, fave); err != nil {
return gtserror.Newf("error populating status fave: %w", err)
}
if err := p.surface.notifyFave(ctx, fave); err != nil {
log.Errorf(ctx, "error notifying fave: %v", err)
}
// Interaction counts changed on the faved status;
// uncache the prepared version from all timelines.
p.surface.invalidateStatusFromTimelines(ctx, fave.StatusID)
return nil
}
func (p *fediAPI) CreateAnnounce(ctx context.Context, fMsg messages.FromFediAPI) error {
boost, ok := fMsg.GTSModel.(*gtsmodel.Status)
if !ok {
return gtserror.Newf("%T not parseable as *gtsmodel.Status", fMsg.GTSModel)
}
// Dereference status that this boosts, note
// that this will handle storing the boost in
// the db, and dereferencing the target status
// ancestors / descendants where appropriate.
var err error
boost, err = p.federate.EnrichAnnounce(
ctx,
boost,
fMsg.ReceivingAccount.Username,
)
if err != nil {
if gtserror.IsUnretrievable(err) {
// Boosted status domain blocked, nothing to do.
log.Debugf(ctx, "skipping announce: %v", err)
return nil
}
// Actual error.
return gtserror.Newf("error dereferencing announce: %w", err)
}
// Timeline and notify the announce.
if err := p.surface.timelineAndNotifyStatus(ctx, boost); err != nil {
log.Errorf(ctx, "error timelining and notifying status: %v", err)
}
if err := p.surface.notifyAnnounce(ctx, boost); err != nil {
log.Errorf(ctx, "error notifying announce: %v", err)
}
// Interaction counts changed on the original status;
// uncache the prepared version from all timelines.
p.surface.invalidateStatusFromTimelines(ctx, boost.BoostOfID)
return nil
}
func (p *fediAPI) CreateBlock(ctx context.Context, fMsg messages.FromFediAPI) error {
block, ok := fMsg.GTSModel.(*gtsmodel.Block)
if !ok {
return gtserror.Newf("%T not parseable as *gtsmodel.Block", fMsg.GTSModel)
}
// Remove each account's posts from the other's timelines.
//
// First home timelines.
if err := p.state.Timelines.Home.WipeItemsFromAccountID(
ctx,
block.AccountID,
block.TargetAccountID,
); err != nil {
log.Errorf(ctx, "error wiping items from block -> target's home timeline: %v", err)
}
if err := p.state.Timelines.Home.WipeItemsFromAccountID(
ctx,
block.TargetAccountID,
block.AccountID,
); err != nil {
log.Errorf(ctx, "error wiping items from target -> block's home timeline: %v", err)
}
// Now list timelines.
if err := p.state.Timelines.List.WipeItemsFromAccountID(
ctx,
block.AccountID,
block.TargetAccountID,
); err != nil {
log.Errorf(ctx, "error wiping items from block -> target's list timeline(s): %v", err)
}
if err := p.state.Timelines.List.WipeItemsFromAccountID(
ctx,
block.TargetAccountID,
block.AccountID,
); err != nil {
log.Errorf(ctx, "error wiping items from target -> block's list timeline(s): %v", err)
}
// Remove any follows that existed between blocker + blockee.
if err := p.state.DB.DeleteFollow(
ctx,
block.AccountID,
block.TargetAccountID,
); err != nil {
log.Errorf(ctx, "error deleting follow from block -> target: %v", err)
}
if err := p.state.DB.DeleteFollow(
ctx,
block.TargetAccountID,
block.AccountID,
); err != nil {
log.Errorf(ctx, "error deleting follow from target -> block: %v", err)
}
// Remove any follow requests that existed between blocker + blockee.
if err := p.state.DB.DeleteFollowRequest(
ctx,
block.AccountID,
block.TargetAccountID,
); err != nil {
log.Errorf(ctx, "error deleting follow request from block -> target: %v", err)
}
if err := p.state.DB.DeleteFollowRequest(
ctx,
block.TargetAccountID,
block.AccountID,
); err != nil {
log.Errorf(ctx, "error deleting follow request from target -> block: %v", err)
}
return nil
}
func (p *fediAPI) CreateFlag(ctx context.Context, fMsg messages.FromFediAPI) error {
incomingReport, ok := fMsg.GTSModel.(*gtsmodel.Report)
if !ok {
return gtserror.Newf("%T not parseable as *gtsmodel.Report", fMsg.GTSModel)
}
// TODO: handle additional side effects of flag creation:
// - notify admins by dm / notification
if err := p.surface.emailReportOpened(ctx, incomingReport); err != nil {
log.Errorf(ctx, "error emailing report opened: %v", err)
}
return nil
}
func (p *fediAPI) UpdateAccount(ctx context.Context, fMsg messages.FromFediAPI) error {
// Parse the old/existing account model.
account, ok := fMsg.GTSModel.(*gtsmodel.Account)
if !ok {
return gtserror.Newf("cannot cast %T -> *gtsmodel.Account", fMsg.GTSModel)
}
// Because this was an Update, the new Accountable should be set on the message.
apubAcc, ok := fMsg.APObjectModel.(ap.Accountable)
if !ok {
return gtserror.Newf("cannot cast %T -> ap.Accountable", fMsg.APObjectModel)
}
// Fetch up-to-date bio, avatar, header, etc.
_, _, err := p.federate.RefreshAccount(
ctx,
fMsg.ReceivingAccount.Username,
account,
apubAcc,
true, // Force refresh.
)
if err != nil {
log.Errorf(ctx, "error refreshing account: %v", err)
}
return nil
}
func (p *fediAPI) UpdateStatus(ctx context.Context, fMsg messages.FromFediAPI) error {
// Cast the existing Status model attached to msg.
existing, ok := fMsg.GTSModel.(*gtsmodel.Status)
if !ok {
return gtserror.Newf("cannot cast %T -> *gtsmodel.Status", fMsg.GTSModel)
}
// Cast the updated ActivityPub statusable object .
apStatus, _ := fMsg.APObjectModel.(ap.Statusable)
// Fetch up-to-date attach status attachments, etc.
status, _, err := p.federate.RefreshStatus(
ctx,
fMsg.ReceivingAccount.Username,
existing,
apStatus,
true,
)
if err != nil {
log.Errorf(ctx, "error refreshing status: %v", err)
}
// Status representation was refetched, uncache from timelines.
p.surface.invalidateStatusFromTimelines(ctx, status.ID)
if status.Poll != nil && status.Poll.Closing {
// If the latest status has a newly closed poll, at least compared
// to the existing version, then notify poll close to all voters.
if err := p.surface.notifyPollClose(ctx, status); err != nil {
log.Errorf(ctx, "error sending poll notification: %v", err)
}
}
// Push message that the status has been edited to streams.
if err := p.surface.timelineStatusUpdate(ctx, status); err != nil {
log.Errorf(ctx, "error streaming status edit: %v", err)
}
return nil
}
func (p *fediAPI) DeleteStatus(ctx context.Context, fMsg messages.FromFediAPI) error {
// Delete attachments from this status, since this request
// comes from the federating API, and there's no way the
// poster can do a delete + redraft for it on our instance.
const deleteAttachments = true
status, ok := fMsg.GTSModel.(*gtsmodel.Status)
if !ok {
return gtserror.Newf("%T not parseable as *gtsmodel.Status", fMsg.GTSModel)
}
if err := p.wipeStatus(ctx, status, deleteAttachments); err != nil {
log.Errorf(ctx, "error wiping status: %v", err)
}
if status.InReplyToID != "" {
// Interaction counts changed on the replied status;
// uncache the prepared version from all timelines.
p.surface.invalidateStatusFromTimelines(ctx, status.InReplyToID)
}
return nil
}
func (p *fediAPI) DeleteAccount(ctx context.Context, fMsg messages.FromFediAPI) error {
account, ok := fMsg.GTSModel.(*gtsmodel.Account)
if !ok {
return gtserror.Newf("%T not parseable as *gtsmodel.Account", fMsg.GTSModel)
}
if err := p.account.Delete(ctx, account, account.ID); err != nil {
log.Errorf(ctx, "error deleting account: %v", err)
}
return nil
}