133 lines
4.0 KiB
Elixir
133 lines
4.0 KiB
Elixir
defmodule Clacks.Inbox do
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require Logger
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alias Clacks.{Repo, Activity, Object, Actor, ActivityPub, Notification}
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defp store_activity(%{"actor" => actor, "id" => ap_id} = activity, local \\ false)
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when is_binary(actor) do
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# remove the embedded object (if there is one) from the activity
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activity_without_embedded_object =
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case Map.get(activity, "object") do
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%{"id" => object_id} ->
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# todo: this assumes we already have stored the object
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Map.put(activity, "object", object_id)
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_ ->
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activity
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end
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changeset =
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Activity.changeset(Activity.get_cached_by_ap_id(ap_id) || %Activity{}, %{
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data: activity_without_embedded_object,
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local: local,
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actor_ap_id: actor
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})
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case Repo.insert_or_update(changeset) do
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{:ok, activity} ->
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Notification.process_notifications_for_incoming(activity)
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{:ok, activity}
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{:error, reason} ->
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{:error, reason}
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end
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end
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@spec handle(activity :: map()) :: :ok | {:error, reason :: any()}
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def handle(%{"type" => "Create", "object" => object} = activity) do
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object = Clacks.Inbox.Transformer.restrict_incoming_object(object)
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changeset = Object.changeset_for_creating(object)
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with {:ok, _object} <- Repo.insert(changeset),
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{:ok, _activity} <- store_activity(activity) do
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:ok
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else
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{:error, changeset} ->
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Logger.error("Couldn't store object or activity: #{inspect(changeset)}")
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{:error, "Couldn't store activity"}
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end
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end
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def handle(%{"type" => "Follow", "object" => followed_id, "actor" => follower_id} = activity)
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when is_binary(followed_id) do
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followed = Actor.get_by_ap_id(followed_id)
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follower = Actor.get_by_ap_id(follower_id)
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store_activity(activity)
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new_followers = [follower_id | followed.followers] |> Enum.uniq()
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changeset = Actor.changeset(followed, %{followers: new_followers})
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case Repo.update(changeset) do
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{:error, changeset} ->
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Logger.error("Couldn't store updated followers: #{inspect(changeset)}")
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{:error, "Couldn't store updated followers"}
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{:ok, _followed} ->
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accept = ActivityPub.accept_follow(activity)
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case store_activity(accept, true) do
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{:error, changeset} ->
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Logger.error("Couldn't store Accept activity: #{inspect(changeset)}")
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{:error, "Couldn't store Accept activity"}
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{:ok, accept} ->
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ActivityPub.Federator.federate(accept, follower.data["inbox"])
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end
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end
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end
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def handle(
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%{
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"type" => "Accept",
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"actor" => followee_id,
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"object" => %{"type" => "Follow", "id" => follow_activity_id, "actor" => follower_id}
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} = activity
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) do
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followee = Actor.get_by_ap_id(followee_id)
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store_activity(activity)
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follow_activity = Activity.get_cached_by_ap_id(follow_activity_id)
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changeset =
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Activity.changeset(follow_activity, %{
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data: %{follow_activity.data | "state" => "accepted"}
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})
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case Repo.update(changeset) do
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{:error, changeset} ->
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Logger.error("Couldn't store updated Follow activity: #{inspect(changeset)}")
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{:error, "Couldn't store updated Follow activity"}
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{:ok, _follow_activity} ->
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new_followers = [follower_id | followee.followers] |> Enum.uniq()
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changeset = Actor.changeset(followee, %{followers: new_followers})
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case Repo.update(changeset) do
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{:error, changeset} ->
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Logger.error("Couldn't store updated followers: #{inspect(changeset)}")
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{:error, "Couldn't store updated followers"}
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{:ok, _followee} ->
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:ok
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end
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end
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end
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# as a fallback, just store the activity
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def handle(activity) do
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Logger.debug("Unhandled activity: #{inspect(activity)}")
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case store_activity(activity) do
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{:error, changeset} ->
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Logger.error("Could not store activity: #{inspect(changeset)}")
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{:error, "Could not store activity"}
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{:ok, _activity} ->
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:ok
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end
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end
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end
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