Clean up and consolidate AP actor resolution logic
- Consolidate Person, Service and Application to adhere to a single interface type. - Add additional error checking around actor properties. - Remove redundant IRI->Actor resolution callbacks and use only the ones in the ResolveIRI method.
This commit is contained in:
Gabe Kangas
@@ -1,6 +1,7 @@
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package apmodels
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import (
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"errors"
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"fmt"
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"net/url"
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"time"
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@@ -40,61 +41,53 @@ type DeleteRequest struct {
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ActorIri string
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}
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// MakeActorFromPerson takes a full ActivityPub Person and returns our internal
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// representation of an actor.
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func MakeActorFromPerson(person vocab.ActivityStreamsPerson) ActivityPubActor {
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apActor := ActivityPubActor{
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ActorIri: person.GetJSONLDId().Get(),
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Inbox: person.GetActivityStreamsInbox().GetIRI(),
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Name: person.GetActivityStreamsName().Begin().GetXMLSchemaString(),
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Username: person.GetActivityStreamsPreferredUsername().GetXMLSchemaString(),
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FullUsername: GetFullUsernameFromPerson(person),
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W3IDSecurityV1PublicKey: person.GetW3IDSecurityV1PublicKey(),
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}
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if person.GetActivityStreamsIcon() != nil && person.GetActivityStreamsIcon().Len() > 0 && person.GetActivityStreamsIcon().At(0).GetActivityStreamsImage() != nil {
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apActor.Image = person.GetActivityStreamsIcon().At(0).GetActivityStreamsImage().GetActivityStreamsUrl().Begin().GetIRI()
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}
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return apActor
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// ExternalEntity represents an ActivityPub Person, Service or Application.
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type ExternalEntity interface {
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GetJSONLDId() vocab.JSONLDIdProperty
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GetActivityStreamsInbox() vocab.ActivityStreamsInboxProperty
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GetActivityStreamsName() vocab.ActivityStreamsNameProperty
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GetActivityStreamsPreferredUsername() vocab.ActivityStreamsPreferredUsernameProperty
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GetActivityStreamsIcon() vocab.ActivityStreamsIconProperty
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GetW3IDSecurityV1PublicKey() vocab.W3IDSecurityV1PublicKeyProperty
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}
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// MakeActorFromService takes a full ActivityPub Service and returns our internal
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// representation of an actor.
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func MakeActorFromService(service vocab.ActivityStreamsService) ActivityPubActor {
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// MakeActorFromExernalAPEntity takes a full ActivityPub entity and returns our
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// internal representation of an actor.
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func MakeActorFromExernalAPEntity(entity ExternalEntity) (*ActivityPubActor, error) {
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// Username is required (but not a part of the official ActivityPub spec)
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if entity.GetActivityStreamsPreferredUsername() == nil || entity.GetActivityStreamsPreferredUsername().GetXMLSchemaString() == "" {
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return nil, errors.New("remote activitypub entity does not have a preferred username set, rejecting")
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}
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username := GetFullUsernameFromExternalEntity(entity)
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// Key is required
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if entity.GetW3IDSecurityV1PublicKey() == nil {
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return nil, errors.New("remote activitypub entity does not have a public key set, rejecting")
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}
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// Name is optional
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var name string
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if entity.GetActivityStreamsName() != nil && !entity.GetActivityStreamsName().Empty() {
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name = entity.GetActivityStreamsName().At(0).GetXMLSchemaString()
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}
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// Image is optional
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var image *url.URL
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if entity.GetActivityStreamsIcon() != nil && !entity.GetActivityStreamsIcon().Empty() && entity.GetActivityStreamsIcon().At(0).GetActivityStreamsImage() != nil {
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image = entity.GetActivityStreamsIcon().At(0).GetActivityStreamsImage().GetActivityStreamsUrl().Begin().GetIRI()
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}
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apActor := ActivityPubActor{
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ActorIri: service.GetJSONLDId().Get(),
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Inbox: service.GetActivityStreamsInbox().GetIRI(),
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Name: service.GetActivityStreamsName().Begin().GetXMLSchemaString(),
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Username: service.GetActivityStreamsPreferredUsername().GetXMLSchemaString(),
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FullUsername: GetFullUsernameFromService(service),
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W3IDSecurityV1PublicKey: service.GetW3IDSecurityV1PublicKey(),
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ActorIri: entity.GetJSONLDId().Get(),
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Inbox: entity.GetActivityStreamsInbox().GetIRI(),
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Name: name,
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Username: entity.GetActivityStreamsPreferredUsername().GetXMLSchemaString(),
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FullUsername: username,
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W3IDSecurityV1PublicKey: entity.GetW3IDSecurityV1PublicKey(),
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Image: image,
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}
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if service.GetActivityStreamsIcon() != nil && service.GetActivityStreamsIcon().Len() > 0 && service.GetActivityStreamsIcon().At(0).GetActivityStreamsImage() != nil {
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apActor.Image = service.GetActivityStreamsIcon().At(0).GetActivityStreamsImage().GetActivityStreamsUrl().Begin().GetIRI()
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}
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return apActor
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}
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// MakeActorFromApplication takes a full ActivityPub application and returns
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// our internal representation of an actor.
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func MakeActorFromApplication(application vocab.ActivityStreamsApplication) ActivityPubActor {
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apActor := ActivityPubActor{
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ActorIri: application.GetJSONLDId().Get(),
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Inbox: application.GetActivityStreamsInbox().GetIRI(),
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Name: application.GetActivityStreamsName().Begin().GetXMLSchemaString(),
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Username: application.GetActivityStreamsPreferredUsername().GetXMLSchemaString(),
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FullUsername: GetFullUsernameFromApplication(application),
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W3IDSecurityV1PublicKey: application.GetW3IDSecurityV1PublicKey(),
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}
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if application.GetActivityStreamsIcon() != nil && application.GetActivityStreamsIcon().Len() > 0 && application.GetActivityStreamsIcon().At(0).GetActivityStreamsImage() != nil {
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apActor.Image = application.GetActivityStreamsIcon().At(0).GetActivityStreamsImage().GetActivityStreamsUrl().Begin().GetIRI()
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}
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return apActor
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return &apActor, nil
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}
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// MakeActorPropertyWithID will return an actor property filled with the provided IRI.
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@@ -239,28 +232,11 @@ func MakeServiceForAccount(accountName string) vocab.ActivityStreamsService {
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return person
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}
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// GetFullUsernameFromPerson will return the user@host.tld formatted user given a person object.
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func GetFullUsernameFromPerson(person vocab.ActivityStreamsPerson) string {
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hostname := person.GetJSONLDId().GetIRI().Hostname()
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username := person.GetActivityStreamsPreferredUsername().GetXMLSchemaString()
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fullUsername := fmt.Sprintf("%s@%s", username, hostname)
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return fullUsername
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}
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// GetFullUsernameFromService will return the user@host.tld formatted user given a service object.
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func GetFullUsernameFromService(person vocab.ActivityStreamsService) string {
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hostname := person.GetJSONLDId().GetIRI().Hostname()
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username := person.GetActivityStreamsPreferredUsername().GetXMLSchemaString()
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fullUsername := fmt.Sprintf("%s@%s", username, hostname)
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return fullUsername
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}
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// GetFullUsernameFromApplication will return the user@host.tld formatted user given a service object.
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func GetFullUsernameFromApplication(person vocab.ActivityStreamsApplication) string {
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hostname := person.GetJSONLDId().GetIRI().Hostname()
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username := person.GetActivityStreamsPreferredUsername().GetXMLSchemaString()
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// GetFullUsernameFromExternalEntity will return the full username from an
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// internal representation of an ExternalEntity. Returns user@host.tld.
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func GetFullUsernameFromExternalEntity(entity ExternalEntity) string {
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hostname := entity.GetJSONLDId().GetIRI().Hostname()
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username := entity.GetActivityStreamsPreferredUsername().GetXMLSchemaString()
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fullUsername := fmt.Sprintf("%s@%s", username, hostname)
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return fullUsername
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@@ -44,6 +44,9 @@ func makeFakeService() vocab.ActivityStreamsService {
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icon.AppendActivityStreamsImage(image)
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service.SetActivityStreamsIcon(icon)
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publicKeyProperty := streams.NewW3IDSecurityV1PublicKeyProperty()
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service.SetW3IDSecurityV1PublicKey(publicKeyProperty)
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return service
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}
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@@ -59,9 +62,12 @@ func TestMain(m *testing.M) {
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m.Run()
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}
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func TestMakeActorFromService(t *testing.T) {
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func TestMakeActorFromExternalAPEntity(t *testing.T) {
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service := makeFakeService()
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actor := MakeActorFromService(service)
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actor, err := MakeActorFromExernalAPEntity(service)
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if err != nil {
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t.Error(err)
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}
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if actor.ActorIri != service.GetJSONLDId().GetIRI() {
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t.Errorf("actor.ID = %v, want %v", actor.ActorIri, service.GetJSONLDId().GetIRI())
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@@ -96,7 +102,7 @@ func TestMakeActorPropertyWithID(t *testing.T) {
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func TestGetFullUsernameFromPerson(t *testing.T) {
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expected := "foodawg@fake.fediverse.server"
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person := makeFakeService()
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username := GetFullUsernameFromService(person)
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username := GetFullUsernameFromExternalEntity(person)
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if username != expected {
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t.Errorf("actor.Username = %v, want %v", username, expected)
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