GoToSocial/internal/federation/federatingdb/outbox.go

/*
   GoToSocial
   Copyright (C) 2021-2022 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 federatingdb

import (
	"context"
	"net/url"

	"github.com/superseriousbusiness/activity/streams"
	"github.com/superseriousbusiness/activity/streams/vocab"
)

// GetOutbox returns the first ordered collection page of the outbox
// at the specified IRI, for prepending new items.
//
// The library makes this call only after acquiring a lock first.
//
// Implementation note: we don't (yet) serve outboxes, so just return empty and nil here.
func (f *federatingDB) GetOutbox(ctx context.Context, outboxIRI *url.URL) (inbox vocab.ActivityStreamsOrderedCollectionPage, err error) {
	return streams.NewActivityStreamsOrderedCollectionPage(), nil
}

// SetOutbox saves the outbox value given from GetOutbox, with new items
// prepended. Note that the new items must not be added as independent
// database entries. Separate calls to Create will do that.
//
// The library makes this call only after acquiring a lock first.
//
// Implementation note: we don't allow outbox setting so just return nil here.
func (f *federatingDB) SetOutbox(ctx context.Context, outbox vocab.ActivityStreamsOrderedCollectionPage) error {
	return nil
}

// OutboxForInbox fetches the corresponding actor's outbox IRI for the
// actor's inbox IRI.
//
// The library makes this call only after acquiring a lock first.
func (f *federatingDB) OutboxForInbox(ctx context.Context, inboxIRI *url.URL) (outboxIRI *url.URL, err error) {
	acct, err := f.getAccountForIRI(ctx, inboxIRI)
	if err != nil {
		return nil, err
	}
	return url.Parse(acct.OutboxURI)
}