forked from potsda.mn/mobilizon
104 lines
3.2 KiB
Elixir
104 lines
3.2 KiB
Elixir
defmodule Mobilizon.Federation.ActivityPub.Refresher do
|
|
@moduledoc """
|
|
Module that provides functions to explore and fetch collections on a group
|
|
"""
|
|
|
|
alias Mobilizon.Actors.Actor
|
|
alias Mobilizon.Federation.ActivityPub
|
|
alias Mobilizon.Federation.ActivityPub.{Fetcher, Transmogrifier}
|
|
require Logger
|
|
|
|
@spec fetch_group(String.t(), Actor.t()) :: :ok
|
|
def fetch_group(group_url, %Actor{} = on_behalf_of) do
|
|
with {:ok,
|
|
%Actor{
|
|
outbox_url: outbox_url,
|
|
resources_url: resources_url,
|
|
members_url: members_url,
|
|
posts_url: posts_url,
|
|
todos_url: todos_url,
|
|
discussions_url: discussions_url,
|
|
events_url: events_url
|
|
}} <-
|
|
ActivityPub.get_or_fetch_actor_by_url(group_url) do
|
|
fetch_collection(outbox_url, on_behalf_of)
|
|
fetch_collection(members_url, on_behalf_of)
|
|
fetch_collection(resources_url, on_behalf_of)
|
|
fetch_collection(posts_url, on_behalf_of)
|
|
fetch_collection(todos_url, on_behalf_of)
|
|
fetch_collection(discussions_url, on_behalf_of)
|
|
fetch_collection(events_url, on_behalf_of)
|
|
end
|
|
end
|
|
|
|
def fetch_collection(nil, _on_behalf_of), do: :error
|
|
|
|
def fetch_collection(collection_url, on_behalf_of) do
|
|
Logger.debug("Fetching and preparing collection from url")
|
|
Logger.debug(inspect(collection_url))
|
|
|
|
with {:ok, data} <- Fetcher.fetch(collection_url, on_behalf_of: on_behalf_of) do
|
|
Logger.debug("Fetch ok, passing to process_collection")
|
|
process_collection(data, on_behalf_of)
|
|
end
|
|
end
|
|
|
|
@spec fetch_element(String.t(), Actor.t()) :: any()
|
|
def fetch_element(url, %Actor{} = on_behalf_of) do
|
|
with {:ok, data} <- Fetcher.fetch(url, on_behalf_of: on_behalf_of) do
|
|
case handling_element(data) do
|
|
{:ok, _activity, entity} ->
|
|
{:ok, entity}
|
|
|
|
{:ok, entity} ->
|
|
{:ok, entity}
|
|
|
|
err ->
|
|
{:error, err}
|
|
end
|
|
end
|
|
end
|
|
|
|
defp process_collection(%{"type" => type, "orderedItems" => items}, _on_behalf_of)
|
|
when type in ["OrderedCollection", "OrderedCollectionPage"] do
|
|
Logger.debug(
|
|
"Processing an OrderedCollection / OrderedCollectionPage with has direct orderedItems"
|
|
)
|
|
|
|
Logger.debug(inspect(items))
|
|
|
|
Enum.each(items, &handling_element/1)
|
|
end
|
|
|
|
defp process_collection(%{"type" => "OrderedCollection", "first" => first}, on_behalf_of)
|
|
when is_map(first),
|
|
do: process_collection(first, on_behalf_of)
|
|
|
|
defp process_collection(%{"type" => "OrderedCollection", "first" => first}, on_behalf_of)
|
|
when is_bitstring(first) do
|
|
Logger.debug("OrderedCollection has a first property pointing to an URI")
|
|
|
|
with {:ok, data} <- Fetcher.fetch(first, on_behalf_of: on_behalf_of) do
|
|
Logger.debug("Fetched the collection for first property")
|
|
process_collection(data, on_behalf_of)
|
|
end
|
|
end
|
|
|
|
defp handling_element(data) when is_map(data) do
|
|
activity = %{
|
|
"type" => "Create",
|
|
"to" => data["to"],
|
|
"cc" => data["cc"],
|
|
"actor" => data["actor"],
|
|
"attributedTo" => data["attributedTo"],
|
|
"object" => data
|
|
}
|
|
|
|
Transmogrifier.handle_incoming(activity)
|
|
end
|
|
|
|
defp handling_element(uri) when is_binary(uri) do
|
|
ActivityPub.fetch_object_from_url(uri)
|
|
end
|
|
end
|