1 files changed, 82 insertions, 2 deletions
diff --git a/internal/federation/util.go b/internal/federation/util.go
index 837d92759..7be92e13d 100644
--- a/internal/federation/util.go
+++ b/internal/federation/util.go
@@ -258,6 +258,88 @@ func (f *federator) DereferenceRemoteAccount(username string, remoteAccountID *u
 	return nil, fmt.Errorf("type name %s not supported", t.GetTypeName())
 }
 
+func (f *federator) DereferenceRemoteStatus(username string, remoteStatusID *url.URL) (typeutils.Statusable, error) {
+	transport, err := f.GetTransportForUser(username)
+	if err != nil {
+		return nil, fmt.Errorf("transport err: %s", err)
+	}
+
+	b, err := transport.Dereference(context.Background(), remoteStatusID)
+	if err != nil {
+		return nil, fmt.Errorf("error deferencing %s: %s", remoteStatusID.String(), err)
+	}
+
+	m := make(map[string]interface{})
+	if err := json.Unmarshal(b, &m); err != nil {
+		return nil, fmt.Errorf("error unmarshalling bytes into json: %s", err)
+	}
+
+	t, err := streams.ToType(context.Background(), m)
+	if err != nil {
+		return nil, fmt.Errorf("error resolving json into ap vocab type: %s", err)
+	}
+
+	// Article, Document, Image, Video, Note, Page, Event, Place, Mention, Profile
+	switch t.GetTypeName() {
+	case gtsmodel.ActivityStreamsArticle:
+		p, ok := t.(vocab.ActivityStreamsArticle)
+		if !ok {
+			return nil, errors.New("error resolving type as ActivityStreamsArticle")
+		}
+		return p, nil
+	case gtsmodel.ActivityStreamsDocument:
+		p, ok := t.(vocab.ActivityStreamsDocument)
+		if !ok {
+			return nil, errors.New("error resolving type as ActivityStreamsDocument")
+		}
+		return p, nil
+	case gtsmodel.ActivityStreamsImage:
+		p, ok := t.(vocab.ActivityStreamsImage)
+		if !ok {
+			return nil, errors.New("error resolving type as ActivityStreamsImage")
+		}
+		return p, nil
+	case gtsmodel.ActivityStreamsVideo:
+		p, ok := t.(vocab.ActivityStreamsVideo)
+		if !ok {
+			return nil, errors.New("error resolving type as ActivityStreamsVideo")
+		}
+		return p, nil
+	case gtsmodel.ActivityStreamsNote:
+		p, ok := t.(vocab.ActivityStreamsNote)
+		if !ok {
+			return nil, errors.New("error resolving type as ActivityStreamsNote")
+		}
+		return p, nil
+	case gtsmodel.ActivityStreamsPage:
+		p, ok := t.(vocab.ActivityStreamsPage)
+		if !ok {
+			return nil, errors.New("error resolving type as ActivityStreamsPage")
+		}
+		return p, nil
+	case gtsmodel.ActivityStreamsEvent:
+		p, ok := t.(vocab.ActivityStreamsEvent)
+		if !ok {
+			return nil, errors.New("error resolving type as ActivityStreamsEvent")
+		}
+		return p, nil
+	case gtsmodel.ActivityStreamsPlace:
+		p, ok := t.(vocab.ActivityStreamsPlace)
+		if !ok {
+			return nil, errors.New("error resolving type as ActivityStreamsPlace")
+		}
+		return p, nil
+	case gtsmodel.ActivityStreamsProfile:
+		p, ok := t.(vocab.ActivityStreamsProfile)
+		if !ok {
+			return nil, errors.New("error resolving type as ActivityStreamsProfile")
+		}
+		return p, nil
+	}
+
+	return nil, fmt.Errorf("type name %s not supported", t.GetTypeName())
+}
+
 func (f *federator) GetTransportForUser(username string) (transport.Transport, error) {
 	// We need an account to use to create a transport for dereferecing the signature.
 	// If a username has been given, we can fetch the account with that username and use it.
@@ -279,5 +361,3 @@ func (f *federator) GetTransportForUser(username string) (transport.Transport, e
 	}
 	return transport, nil
 }
-
-