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mobilizon/lib/web/cache/activity_pub.ex

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Elixir
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defmodule Mobilizon.Web.Cache.ActivityPub do
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@moduledoc """
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ActivityPub related cache.
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"""
alias Mobilizon.{Actors, Conversations, Discussions, Events, Posts, Resources, Todos, Tombstone}
alias Mobilizon.Actors.Actor, as: ActorModel
alias Mobilizon.Actors.Member
alias Mobilizon.Conversations.Conversation
alias Mobilizon.Discussions.{Comment, Discussion}
alias Mobilizon.Events.Event
alias Mobilizon.Federation.ActivityPub.{Actor, Relay}
alias Mobilizon.Posts.Post
alias Mobilizon.Resources.Resource
alias Mobilizon.Todos.{Todo, TodoList}
use Mobilizon.Web, :verified_routes
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@cache :activity_pub
@doc """
Gets a actor by username and eventually domain.
"""
@spec get_actor_by_name(String.t()) ::
{:commit, ActorModel.t()} | {:ignore, nil}
def get_actor_by_name(name) do
Cachex.fetch(@cache, "actor_" <> name, &do_get_actor/1)
end
@spec do_get_actor(String.t()) :: {:commit, Actor.t()} | {:ignore, nil}
defp do_get_actor("actor_" <> name) do
case Actor.find_or_make_actor_from_nickname(name) do
{:ok, %ActorModel{suspended: false} = actor} ->
{:commit, actor}
{:ok, %ActorModel{}} ->
{:ignore, nil}
{:error, _err} ->
{:ignore, nil}
end
end
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@doc """
Gets a local actor by username.
"""
@spec get_local_actor_by_name(String.t()) ::
{:commit, ActorModel.t()} | {:ignore, nil}
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def get_local_actor_by_name(name) do
Cachex.fetch(@cache, "local_actor_" <> name, fn "local_actor_" <> name ->
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case Actors.get_local_actor_by_name(name) do
%ActorModel{suspended: false} = actor ->
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{:commit, actor}
{:ok, %ActorModel{}} ->
{:ignore, nil}
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nil ->
{:ignore, nil}
end
end)
end
@doc """
Gets a public event by its UUID, with all associations loaded.
"""
@spec get_public_event_by_uuid_with_preload(String.t()) ::
{:commit, Event.t()} | {:ignore, nil}
def get_public_event_by_uuid_with_preload(uuid) do
Cachex.fetch(@cache, "event_" <> uuid, fn "event_" <> uuid ->
case Events.get_public_event_by_uuid_with_preload(uuid) do
%Event{} = event ->
{:commit, event}
nil ->
with url <- url(~p"/events/#{uuid}"),
%Tombstone{} = tomstone <- Tombstone.find_tombstone(url) do
tomstone
else
_ -> {:ignore, nil}
end
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end
end)
end
@doc """
Gets a comment by its UUID, with all associations loaded.
"""
@spec get_comment_by_uuid_with_preload(String.t()) ::
{:commit, Comment.t()} | {:ignore, nil}
def get_comment_by_uuid_with_preload(uuid) do
Cachex.fetch(@cache, "comment_" <> uuid, fn "comment_" <> uuid ->
case Discussions.get_comment_from_uuid_with_preload(uuid) do
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%Comment{} = comment ->
{:commit, comment}
nil ->
{:ignore, nil}
end
end)
end
@doc """
Gets a resource by its UUID, with all associations loaded.
"""
@spec get_resource_by_uuid_with_preload(String.t()) ::
{:commit, Resource.t()} | {:ignore, nil}
def get_resource_by_uuid_with_preload(uuid) do
Cachex.fetch(@cache, "resource_" <> uuid, fn "resource_" <> uuid ->
case Resources.get_resource_with_preloads(uuid) do
%Resource{} = resource ->
{:commit, resource}
nil ->
{:ignore, nil}
end
end)
end
@doc """
Gets a post by its slug, with all associations loaded.
"""
@spec get_post_by_slug_with_preload(String.t()) ::
{:commit, Post.t()} | {:ignore, nil}
def get_post_by_slug_with_preload(slug) do
Cachex.fetch(@cache, "post_" <> slug, fn "post_" <> slug ->
case Posts.get_post_by_slug_with_preloads(slug) do
%Post{} = post ->
{:commit, post}
nil ->
{:ignore, nil}
end
end)
end
@doc """
Gets a discussion by its slug, with all associations loaded.
"""
@spec get_discussion_by_slug_with_preload(String.t()) ::
{:commit, Discussion.t()} | {:ignore, nil}
def get_discussion_by_slug_with_preload(slug) do
Cachex.fetch(@cache, "discussion_" <> slug, fn "discussion_" <> slug ->
case Discussions.get_discussion_by_slug(slug) do
%Discussion{} = discussion ->
{:commit, discussion}
nil ->
{:ignore, nil}
end
end)
end
@doc """
Gets a todo list by its UUID, with all associations loaded.
"""
@spec get_todo_list_by_uuid_with_preload(String.t()) ::
{:commit, TodoList.t()} | {:ignore, nil}
def get_todo_list_by_uuid_with_preload(uuid) do
Cachex.fetch(@cache, "todo_list_" <> uuid, fn "todo_list_" <> uuid ->
case Todos.get_todo_list(uuid) do
%TodoList{} = todo_list ->
{:commit, todo_list}
nil ->
{:ignore, nil}
end
end)
end
@doc """
Gets a todo by its UUID, with all associations loaded.
"""
@spec get_todo_by_uuid_with_preload(String.t()) ::
{:commit, Todo.t()} | {:ignore, nil}
def get_todo_by_uuid_with_preload(uuid) do
Cachex.fetch(@cache, "todo_" <> uuid, fn "todo_" <> uuid ->
case Todos.get_todo(uuid) do
%Todo{} = todo ->
{:commit, todo}
nil ->
{:ignore, nil}
end
end)
end
@doc """
Gets a conversation participant by it's ID, with all associations loaded.
"""
@spec get_conversation_by_id_with_preload(String.t()) ::
{:commit, Todo.t()} | {:ignore, nil}
def get_conversation_by_id_with_preload(id) do
Cachex.fetch(@cache, "conversation_participant_" <> id, fn "conversation_participant_" <> id ->
case Conversations.get_conversation_participant(id) do
%Conversation{} = conversation ->
{:commit, conversation}
nil ->
{:ignore, nil}
end
end)
end
@doc """
Gets a member by its UUID, with all associations loaded.
"""
@spec get_member_by_uuid_with_preload(String.t()) ::
{:commit, Member.t()} | {:ignore, nil}
def get_member_by_uuid_with_preload(uuid) do
Cachex.fetch(@cache, "member_" <> uuid, fn "member_" <> uuid ->
case Actors.get_member(uuid) do
%Member{} = member ->
{:commit, member}
nil ->
{:ignore, nil}
end
end)
end
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@doc """
Gets a relay.
"""
@spec get_relay :: {:commit, ActorModel.t()} | {:ignore, nil}
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def get_relay do
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Cachex.fetch(@cache, "relay_actor", &Relay.get_actor/0)
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end
end