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5d8ad897fd
Closes #546 Signed-off-by: Thomas Citharel <tcit@tcit.fr>
192 lines
6.4 KiB
Elixir
192 lines
6.4 KiB
Elixir
defmodule Mobilizon.Web.ActivityPub.ActorView do
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use Mobilizon.Web, :view
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alias Mobilizon.{Actors, Discussions, Events, Posts, Resources, Todos}
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alias Mobilizon.Actors.{Actor, Member}
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alias Mobilizon.Discussions.Discussion
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alias Mobilizon.Events.Event
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alias Mobilizon.Federation.ActivityPub
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alias Mobilizon.Federation.ActivityPub.{Activity, Utils}
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alias Mobilizon.Federation.ActivityStream.Convertible
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alias Mobilizon.Posts.Post
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alias Mobilizon.Resources.Resource
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alias Mobilizon.Storage.Page
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alias Mobilizon.Todos.TodoList
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@private_visibility_empty_collection %{elements: [], total: 0}
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@json_ld_header Utils.make_json_ld_header()
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@selected_member_roles ~w(creator administrator moderator member)a
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def render("actor.json", %{actor: actor}) do
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actor
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|> Convertible.model_to_as()
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|> Map.merge(Utils.make_json_ld_header())
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end
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def render("member.json", %{member: %Member{} = member}) do
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member
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|> Convertible.model_to_as()
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|> Map.merge(Utils.make_json_ld_header())
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end
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@doc """
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Render an actor collection
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"""
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@spec render(String.t(), map()) :: map()
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def render(view_name, %{actor: %Actor{} = actor} = args) do
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is_root? = is_nil(Map.get(args, :page))
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page = Map.get(args, :page, 1)
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collection_name = String.trim_trailing(view_name, ".json")
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collection_name = String.to_existing_atom(collection_name)
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%{total: total, elements: elements} =
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if can_get_collection?(collection_name, actor, Map.get(args, :actor_applicant)),
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do: fetch_collection(collection_name, actor, page),
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else: default_collection(collection_name, actor, page)
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collection =
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if is_root? do
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root_collection(elements, actor, collection_name, total)
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else
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collection(elements, actor.preferred_username, collection_name, page, total)
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end
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Map.merge(collection, @json_ld_header)
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end
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@spec root_collection(Enum.t(), Actor.t(), atom(), integer()) :: map()
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defp root_collection(
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elements,
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%Actor{preferred_username: preferred_username, url: actor_url},
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collection,
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total
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) do
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%{
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"id" => Actor.build_url(preferred_username, collection),
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"attributedTo" => actor_url,
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"type" => "OrderedCollection",
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"totalItems" => total,
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"first" => collection(elements, preferred_username, collection, 1, total)
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}
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end
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@spec fetch_collection(atom(), Actor.t(), integer()) :: Page.t()
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defp fetch_collection(:following, actor, page) do
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Actors.build_followings_for_actor(actor, page)
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end
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defp fetch_collection(:followers, actor, page) do
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Actors.build_followers_for_actor(actor, page)
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end
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defp fetch_collection(:members, actor, page) do
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Actors.list_members_for_group(actor, @selected_member_roles, page)
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end
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defp fetch_collection(:resources, actor, page) do
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Resources.get_resources_for_group(actor, page)
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end
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defp fetch_collection(:discussions, actor, page) do
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Discussions.find_discussions_for_actor(actor, page)
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end
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defp fetch_collection(:posts, actor, page) do
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Posts.get_posts_for_group(actor, page)
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end
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defp fetch_collection(:events, actor, page) do
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Events.list_simple_organized_events_for_group(actor, page)
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end
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defp fetch_collection(:todos, actor, page) do
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Todos.get_todo_lists_for_group(actor, page)
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end
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@spec fetch_collection(atom(), Actor.t(), integer()) :: %{total: integer(), elements: Enum.t()}
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defp fetch_collection(:outbox, actor, page) do
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ActivityPub.fetch_public_activities_for_actor(actor, page)
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end
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defp fetch_collection(_, _, _), do: @private_visibility_empty_collection
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@spec can_get_collection?(atom(), Actor.t(), Actor.t()) :: boolean()
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# Outbox only contains public activities
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defp can_get_collection?(collection, %Actor{visibility: visibility} = _actor, _actor_applicant)
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when visibility in [:public, :unlisted] and collection in [:outbox, :followers, :following],
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do: true
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defp can_get_collection?(_collection_name, %Actor{} = actor, %Actor{} = actor_applicant),
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do: actor_applicant_group_member?(actor, actor_applicant)
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defp can_get_collection?(_, _, _), do: false
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# Posts and events allows to browse public content
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defp default_collection(:posts, %Actor{} = actor, page),
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do: Posts.get_public_posts_for_group(actor, page)
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defp default_collection(:events, %Actor{} = actor, page),
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do: Events.list_public_events_for_actor(actor, page)
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defp default_collection(_, _, _), do: @private_visibility_empty_collection
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@spec collection(list(), String.t(), atom(), integer(), integer()) :: map()
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defp collection(collection, preferred_username, endpoint, page, total)
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when endpoint in [
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:followers,
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:following,
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:outbox,
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:members,
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:resources,
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:todos,
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:posts,
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:events,
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:discussions
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] do
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offset = (page - 1) * 10
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map = %{
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"id" => Actor.build_url(preferred_username, endpoint, page: page),
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"attributedTo" => Actor.build_url(preferred_username, :page),
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"type" => "OrderedCollectionPage",
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"partOf" => Actor.build_url(preferred_username, endpoint),
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"orderedItems" => Enum.map(collection, &item/1)
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}
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map =
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if offset < total do
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Map.put(map, "next", Actor.build_url(preferred_username, endpoint, page: page + 1))
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else
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map
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end
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map =
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if offset > total do
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Map.put(map, "prev", Actor.build_url(preferred_username, endpoint, page: page - 1))
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else
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map
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end
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map
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end
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def item(%Activity{data: data}), do: data
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def item(%Actor{url: url}), do: url
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def item(%Member{} = member), do: Convertible.model_to_as(member)
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def item(%Resource{} = resource), do: Convertible.model_to_as(resource)
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def item(%Discussion{} = discussion), do: Convertible.model_to_as(discussion)
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def item(%Post{} = post), do: Convertible.model_to_as(post)
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def item(%Event{} = event), do: Convertible.model_to_as(event)
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def item(%TodoList{} = todo_list), do: Convertible.model_to_as(todo_list)
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defp actor_applicant_group_member?(%Actor{}, nil), do: false
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defp actor_applicant_group_member?(%Actor{id: group_id}, %Actor{id: actor_applicant_id}),
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do:
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Actors.get_member(actor_applicant_id, group_id, [
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:member,
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:moderator,
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:administrator,
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:creator
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]) != {:error, :member_not_found}
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end
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