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activitypub/flatten.go

128 lines
3.4 KiB
Go

package activitypub
// FlattenActivityProperties flattens the Activity's properties from Object type to IRI
func FlattenActivityProperties(act *Activity) *Activity {
OnIntransitiveActivity(act, func(in *IntransitiveActivity) error {
FlattenIntransitiveActivityProperties(in)
return nil
})
act.Object = FlattenToIRI(act.Object)
return act
}
// FlattenIntransitiveActivityProperties flattens the Activity's properties from Object type to IRI
func FlattenIntransitiveActivityProperties(act *IntransitiveActivity) *IntransitiveActivity {
act.Actor = FlattenToIRI(act.Actor)
act.Target = FlattenToIRI(act.Target)
act.Result = FlattenToIRI(act.Result)
act.Origin = FlattenToIRI(act.Origin)
act.Result = FlattenToIRI(act.Result)
act.Instrument = FlattenToIRI(act.Instrument)
OnObject(act, func(o *Object) error {
o = FlattenObjectProperties(o)
return nil
})
return act
}
// FlattenItemCollection flattens an Item Collection to their respective IRIs
func FlattenItemCollection(col ItemCollection) ItemCollection {
if col == nil {
return col
}
for k, it := range ItemCollectionDeduplication(&col) {
if iri := it.GetLink(); iri != "" {
col[k] = iri
}
}
return col
}
// FlattenCollection flattens a Collection's objects to their respective IRIs
func FlattenCollection(col *Collection) *Collection {
if col == nil {
return col
}
col.Items = FlattenItemCollection(col.Items)
return col
}
// FlattenOrderedCollection flattens an OrderedCollection's objects to their respective IRIs
func FlattenOrderedCollection(col *OrderedCollection) *OrderedCollection {
if col == nil {
return col
}
col.OrderedItems = FlattenItemCollection(col.OrderedItems)
return col
}
// FlattenActorProperties flattens the Actor's properties from Object types to IRI
func FlattenActorProperties(a *Actor) *Actor {
OnObject(a, func(o *Object) error {
o = FlattenObjectProperties(o)
return nil
})
return a
}
// FlattenObjectProperties flattens the Object's properties from Object types to IRI
func FlattenObjectProperties(o *Object) *Object {
o.Replies = Flatten(o.Replies)
o.Shares = Flatten(o.Shares)
o.Likes = Flatten(o.Likes)
o.AttributedTo = Flatten(o.AttributedTo)
o.To = FlattenItemCollection(o.To)
o.Bto = FlattenItemCollection(o.Bto)
o.CC = FlattenItemCollection(o.CC)
o.BCC = FlattenItemCollection(o.BCC)
o.Audience = FlattenItemCollection(o.Audience)
//o.Tag = FlattenItemCollection(o.Tag)
return o
}
// FlattenProperties flattens the Item's properties from Object types to IRI
func FlattenProperties(it Item) Item {
typ := it.GetType()
if IntransitiveActivityTypes.Contains(typ) {
OnIntransitiveActivity(it, func(a *IntransitiveActivity) error {
a = FlattenIntransitiveActivityProperties(a)
return nil
})
} else if ActivityTypes.Contains(typ) {
OnActivity(it, func(a *Activity) error {
a = FlattenActivityProperties(a)
return nil
})
}
if ActorTypes.Contains(typ) {
OnActor(it, func(a *Actor) error {
a = FlattenActorProperties(a)
return nil
})
}
if ObjectTypes.Contains(typ) {
OnObject(it, func(o *Object) error {
o = FlattenObjectProperties(o)
return nil
})
}
return it
}
// Flatten checks if Item can be flattened to an IRI or array of IRIs and returns it if so
func Flatten(it Item) Item {
if IsNil(it) {
return nil
}
if it.IsCollection() {
OnCollectionIntf(it, func(c CollectionInterface) error {
it = FlattenItemCollection(c.Collection()).Normalize()
return nil
})
return it
}
return it.GetLink()
}