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	after seeing a potential reported federating worker lockup i decided to start digging into the federatingdb code. this PR encompasses:
- removes one of our last unused interface types `federatingdb.DB{}`, replacing it with a struct type `*federatingdb.DB{}`
- in `transport.dereferenceLocal()` differentiates between an unsupported lookup type and ErrNoEntries to reduce unnecessary calls, and reduce potential lockups that may occur while trying to call our own endpoints that then call `federatingdb.Lock()`
- removes a bunch of the locks on follow state changes since the DB already synchronizes that
- removes the unnecessary `pub.Clock{}` struct field and type passed to the transport controller
frankly it would be great if we could remove the locking in `federatingdb.Lock()` and instead handle it ourselves as it gets very confusing trying to figure out what functions will have locks held. but i guess that's one for when we move further away from the go-fed/activity/pub package usage.
Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4178
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>
		
	
			
		
			
				
	
	
		
			59 lines
		
	
	
	
		
			2.3 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			59 lines
		
	
	
	
		
			2.3 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // GoToSocial
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| // Copyright (C) GoToSocial Authors admin@gotosocial.org
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| // SPDX-License-Identifier: AGPL-3.0-or-later
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| //
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| // This program is free software: you can redistribute it and/or modify
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| // it under the terms of the GNU Affero General Public License as published by
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| // the Free Software Foundation, either version 3 of the License, or
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| // (at your option) any later version.
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| //
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| // This program is distributed in the hope that it will be useful,
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| // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| // GNU Affero General Public License for more details.
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| //
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| // You should have received a copy of the GNU Affero General Public License
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| // along with this program.  If not, see <http://www.gnu.org/licenses/>.
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| 
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| package federatingdb
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| 
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| import (
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| 	"context"
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| 	"net/url"
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| 
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| 	"code.superseriousbusiness.org/activity/streams"
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| 	"code.superseriousbusiness.org/activity/streams/vocab"
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| )
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| 
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| // GetOutbox returns the first ordered collection page of the outbox
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| // at the specified IRI, for prepending new items.
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| //
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| // The library makes this call only after acquiring a lock first.
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| //
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| // Implementation note: we don't (yet) serve outboxes, so just return empty and nil here.
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| func (f *DB) GetOutbox(ctx context.Context, outboxIRI *url.URL) (inbox vocab.ActivityStreamsOrderedCollectionPage, err error) {
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| 	return streams.NewActivityStreamsOrderedCollectionPage(), nil
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| }
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| 
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| // SetOutbox saves the outbox value given from GetOutbox, with new items
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| // prepended. Note that the new items must not be added as independent
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| // database entries. Separate calls to Create will do that.
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| //
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| // The library makes this call only after acquiring a lock first.
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| //
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| // Implementation note: we don't allow outbox setting so just return nil here.
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| func (f *DB) SetOutbox(ctx context.Context, outbox vocab.ActivityStreamsOrderedCollectionPage) error {
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| 	return nil
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| }
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| 
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| // OutboxForInbox fetches the corresponding local actor's outbox IRI for the
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| // actor's inbox IRI.
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| //
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| // The library makes this call only after acquiring a lock first.
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| func (f *DB) OutboxForInbox(ctx context.Context, inboxIRI *url.URL) (outboxIRI *url.URL, err error) {
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| 	acct, err := f.state.DB.GetOneAccountByInboxURI(ctx, inboxIRI.String())
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| 	if err != nil {
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| 		return nil, err
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| 	}
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| 	return url.Parse(acct.OutboxURI)
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| }
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