75 lines
2.3 KiB
Elixir
75 lines
2.3 KiB
Elixir
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defmodule Mobilizon.Federation.ActivityPub.Actions.Follow do
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@moduledoc """
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Follow people
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"""
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alias Mobilizon.Actors
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alias Mobilizon.Actors.{Actor, Follower}
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alias Mobilizon.Federation.ActivityPub.Types
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alias Mobilizon.Federation.ActivityStream.Convertible
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alias Mobilizon.Web.Endpoint
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require Logger
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import Mobilizon.Federation.ActivityPub.Utils,
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only: [
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create_activity: 2,
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maybe_federate: 1,
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make_unfollow_data: 4
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]
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@doc """
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Make an actor follow another, using an activity of type `Follow`
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"""
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@spec follow(Actor.t(), Actor.t(), String.t() | nil, boolean, map) ::
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{:ok, Activity.t(), Follower.t()} | {:error, atom | Ecto.Changeset.t() | String.t()}
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def follow(
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%Actor{} = follower,
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%Actor{} = followed,
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activity_id \\ nil,
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local \\ true,
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additional \\ %{}
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) do
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if followed.id != follower.id do
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case Types.Actors.follow(
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follower,
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followed,
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local,
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Map.merge(additional, %{"activity_id" => activity_id})
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) do
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{:ok, activity_data, %Follower{} = follower} ->
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{:ok, activity} = create_activity(activity_data, local)
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maybe_federate(activity)
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{:ok, activity, follower}
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{:error, err} ->
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{:error, err}
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end
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else
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{:error, "Can't follow yourself"}
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end
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end
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@doc """
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Make an actor unfollow another, using an activity of type `Undo` a `Follow`.
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"""
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@spec unfollow(Actor.t(), Actor.t(), String.t() | nil, boolean()) ::
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{:ok, Activity.t(), Follower.t()} | {:error, String.t()}
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def unfollow(%Actor{} = follower, %Actor{} = followed, activity_id \\ nil, local \\ true) do
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with {:ok, %Follower{id: follow_id} = follow} <- Actors.unfollow(followed, follower) do
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# We recreate the follow activity
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follow_as_data =
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Convertible.model_to_as(%{follow | actor: follower, target_actor: followed})
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{:ok, follow_activity} = create_activity(follow_as_data, local)
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activity_unfollow_id = activity_id || "#{Endpoint.url()}/unfollow/#{follow_id}/activity"
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unfollow_data =
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make_unfollow_data(follower, followed, follow_activity, activity_unfollow_id)
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{:ok, activity} = create_activity(unfollow_data, local)
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maybe_federate(activity)
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{:ok, activity, follow}
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end
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end
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end
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