/* 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 . */ 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.db.GetLocalAccountByUsername(c, localAccountUsername) if err != nil { return nil, fmt.Errorf("couldn't find local account with username %s: %s", localAccountUsername, err) } follows, err := f.db.GetAccountFollowedBy(c, account.ID, false) if err != nil { return nil, fmt.Errorf("couldn't get followers of local account %s: %s", localAccountUsername, err) } for _, follow := range follows { // make sure we retrieved the following account from the db if follow.Account == nil { followingAccount, err := f.db.GetAccountByID(c, follow.AccountID) if err != nil { if err == db.ErrNoEntries { continue } return nil, fmt.Errorf("error retrieving account with id %s: %s", follow.AccountID, err) } follow.Account = followingAccount } inboxIRI, err := url.Parse(follow.Account.InboxURI) 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.db.GetAccountByURI(c, iri.String()); err == nil { inboxIRI, err := url.Parse(account.InboxURI) 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 }