Determine a user inbox to use based on heuristics. These heuristics are based on an approximation of the sharedInbox rules in the ActivityPub specification.

Please do not edit this function (or its children) without reading the spec, as editing the code is likely to introduce some breakage without some familiarity.

Callback implementation for ActivityPubWeb.Federator.Publisher.gather_webfinger_links/1.

Callback implementation for ActivityPubWeb.Federator.Publisher.is_representable?/1.

If you put the URL of the shared inbox of an ActivityPub instance in the following env variable, all public content will be pushed there via AP federation for search indexing purposes: PUSH_ALL_PUBLIC_CONTENT_TO_INSTANCE #TODO: move to adapter

Callback implementation for ActivityPubWeb.Federator.Publisher.publish/2.

Publish a single message to a peer. Takes a struct with the following parameters set:

• inbox: the inbox to publish to
• json: the JSON message body representing the ActivityPub message
• actor: the actor which is signing the message
• id: the ActivityStreams URI of the message