gtsocial-umbx

inbox.go (5628B)

---

 // 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 federatingdb
 
 import (
 	"context"
 	"fmt"
 	"net/url"
 
 	"github.com/superseriousbusiness/activity/streams"
 	"github.com/superseriousbusiness/activity/streams/vocab"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/uris"
 )
 
 // InboxContains returns true if the OrderedCollection at 'inbox'
 // contains the specified 'id'.
 //
 // The library makes this call only after acquiring a lock first.
 //
 // Implementation note: we have our own logic for inboxes so always return false here.
 func (f *federatingDB) InboxContains(c context.Context, inbox, id *url.URL) (contains bool, err error) {
 	return false, nil
 }
 
 // GetInbox 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 inboxes, so just return empty and nil here.
 func (f *federatingDB) GetInbox(c context.Context, inboxIRI *url.URL) (inbox vocab.ActivityStreamsOrderedCollectionPage, err error) {
 	return streams.NewActivityStreamsOrderedCollectionPage(), nil
 }
 
 // SetInbox saves the inbox value given from GetInbox, 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 inbox setting so just return nil here.
 func (f *federatingDB) SetInbox(c context.Context, inbox vocab.ActivityStreamsOrderedCollectionPage) error {
 	return nil
 }
 
 // InboxesForIRI fetches inboxes corresponding to the given iri.
 // This allows your server to skip remote dereferencing of iris
 // in order to speed up message delivery, if desired.
 //
 // It is acceptable to just return nil or an empty slice for the inboxIRIs,
 // if you don't know the inbox iri, or you don't wish to use this feature.
 // In this case, the library will attempt to resolve inboxes of the iri
 // by remote dereferencing instead.
 //
 // If the input iri is the iri of an Actor, then the inbox for the actor
 // should be returned as a single-entry slice.
 //
 // If the input iri is a Collection (such as a Collection of followers),
 // then each follower inbox IRI should be returned in the inboxIRIs slice.
 //
 // The library makes this call only after acquiring a lock first.
 func (f *federatingDB) InboxesForIRI(c context.Context, iri *url.URL) (inboxIRIs []*url.URL, err error) {
 	// check if this is a followers collection iri for a local account...
 	if iri.Host == config.GetHost() && uris.IsFollowersPath(iri) {
 		localAccountUsername, err := uris.ParseFollowersPath(iri)
 		if err != nil {
 			return nil, fmt.Errorf("couldn't extract local account username from uri %s: %s", iri, err)
 		}
 
 		account, err := f.state.DB.GetAccountByUsernameDomain(c, localAccountUsername, "")
 		if err != nil {
 			return nil, fmt.Errorf("couldn't find local account with username %s: %s", localAccountUsername, err)
 		}
 
 		follows, err := f.state.DB.GetAccountFollowers(c, account.ID)
 		if err != nil {
 			return nil, fmt.Errorf("couldn't get followers of local account %s: %s", localAccountUsername, err)
 		}
 
 		for _, follow := range follows {
 			if follow.Account == nil {
 				// No account exists for this follow,
 				// for some reason. Just skip it.
 				continue
 			}
 
 			// deliver to a shared inbox if we have that option
 			var inbox string
 			if config.GetInstanceDeliverToSharedInboxes() && follow.Account.SharedInboxURI != nil && *follow.Account.SharedInboxURI != "" {
 				inbox = *follow.Account.SharedInboxURI
 			} else {
 				inbox = follow.Account.InboxURI
 			}
 
 			inboxIRI, err := url.Parse(inbox)
 			if err != nil {
 				return nil, fmt.Errorf("error parsing inbox uri of following account %s: %s", follow.Account.InboxURI, err)
 			}
 			inboxIRIs = append(inboxIRIs, inboxIRI)
 		}
 		return inboxIRIs, nil
 	}
 
 	// check if this is just an account IRI...
 	if account, err := f.state.DB.GetAccountByURI(c, iri.String()); err == nil {
 		// deliver to a shared inbox if we have that option
 		var inbox string
 		if config.GetInstanceDeliverToSharedInboxes() && account.SharedInboxURI != nil && *account.SharedInboxURI != "" {
 			inbox = *account.SharedInboxURI
 		} else {
 			inbox = account.InboxURI
 		}
 
 		inboxIRI, err := url.Parse(inbox)
 		if err != nil {
 			return nil, fmt.Errorf("error parsing account inbox uri %s: %s", account.InboxURI, account.InboxURI)
 		}
 		// we've got it
 		inboxIRIs = append(inboxIRIs, inboxIRI)
 		return inboxIRIs, nil
 	} else if err != db.ErrNoEntries {
 		// there's been a real error
 		return nil, err
 	}
 
 	// no error, we just didn't find anything so let the library handle the rest
 	return nil, nil
 }