package federatingdb import ( "context" "fmt" "net/url" "github.com/go-fed/activity/streams/vocab" "github.com/sirupsen/logrus" "github.com/superseriousbusiness/gotosocial/internal/db" ) // 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 := logrus.WithFields( logrus.Fields{ "func": "Followers", "id": actorIRI, }, ) l.Debug("entering Followers") acct, err := f.getAccountForIRI(ctx, actorIRI) if err != nil { return nil, err } 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) } iris := []*url.URL{} for _, follow := range acctFollowers { if follow.Account == nil { a, 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 = a } u, err := url.Parse(follow.Account.URI) if err != nil { return nil, err } iris = append(iris, u) } return f.collectIRIs(ctx, iris) }