package federatingdb import ( "context" "fmt" "net/url" "github.com/go-fed/activity/streams" "github.com/go-fed/activity/streams/vocab" "github.com/sirupsen/logrus" "github.com/superseriousbusiness/gotosocial/internal/db" "github.com/superseriousbusiness/gotosocial/internal/gtsmodel" "github.com/superseriousbusiness/gotosocial/internal/util" ) // Followers obtains the Followers Collection for an actor with the // given id. // // If modified, the library will then call Update. // // The library makes this call only after acquiring a lock first. func (f *federatingDB) Followers(ctx context.Context, actorIRI *url.URL) (followers vocab.ActivityStreamsCollection, err error) { l := f.log.WithFields( logrus.Fields{ "func": "Followers", "actorIRI": actorIRI.String(), }, ) l.Debugf("entering FOLLOWERS function with actorIRI %s", actorIRI.String()) acct := >smodel.Account{} if util.IsUserPath(actorIRI) { acct, err = f.db.GetAccountByURI(ctx, actorIRI.String()) if err != nil { return nil, fmt.Errorf("FOLLOWERS: db error getting account with uri %s: %s", actorIRI.String(), err) } } else if util.IsFollowersPath(actorIRI) { if err := f.db.GetWhere(ctx, []db.Where{{Key: "followers_uri", Value: actorIRI.String()}}, acct); err != nil { return nil, fmt.Errorf("FOLLOWERS: db error getting account with followers uri %s: %s", actorIRI.String(), err) } } else { return nil, fmt.Errorf("FOLLOWERS: could not parse actor IRI %s as users or followers path", actorIRI.String()) } acctFollowers, err := f.db.GetAccountFollowedBy(ctx, acct.ID, false) if err != nil { return nil, fmt.Errorf("FOLLOWERS: db error getting followers for account id %s: %s", acct.ID, err) } followers = streams.NewActivityStreamsCollection() items := streams.NewActivityStreamsItemsProperty() for _, follow := range acctFollowers { if follow.Account == nil { followAccount, err := f.db.GetAccountByID(ctx, follow.AccountID) if err != nil { errWrapped := fmt.Errorf("FOLLOWERS: db error getting account id %s: %s", follow.AccountID, err) if err == db.ErrNoEntries { // no entry for this account id so it's probably been deleted and we haven't caught up yet l.Error(errWrapped) continue } else { // proper error return nil, errWrapped } } follow.Account = followAccount } uri, err := url.Parse(follow.Account.URI) if err != nil { return nil, fmt.Errorf("FOLLOWERS: error parsing %s as url: %s", follow.Account.URI, err) } items.AppendIRI(uri) } followers.SetActivityStreamsItems(items) return }