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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(c 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(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([]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(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 {
gtsFollower := >smodel.Account{}
if err := f.db.GetByID(follow.AccountID, gtsFollower); err != nil {
return nil, fmt.Errorf("FOLLOWERS: db error getting account id %s: %s", follow.AccountID, err)
}
uri, err := url.Parse(gtsFollower.URI)
if err != nil {
return nil, fmt.Errorf("FOLLOWERS: error parsing %s as url: %s", gtsFollower.URI, err)
}
items.AppendIRI(uri)
}
followers.SetActivityStreamsItems(items)
return
}
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