58 lines
1.5 KiB
Elixir
58 lines
1.5 KiB
Elixir
defmodule Clacks.ActivityPub.Fetcher do
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require Logger
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@spec fetch_actor(id :: String.t()) :: map() | nil
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def fetch_actor(id) do
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%{host: id_host} = URI.parse(id)
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with %{"type" => type, "id" => remote_id} = actor <- fetch(id),
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"person" <- String.downcase(type),
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%{host: actor_host} when actor_host == id_host <- URI.parse(remote_id) do
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actor
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else
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_ ->
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nil
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end
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end
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@spec fetch_object(id :: String.t()) :: map() | nil
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def fetch_object(id) do
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%{host: id_host} = URI.parse(id)
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with %{"actor" => remote_actor} = object <- fetch(id),
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%{host: actor_host} when actor_host == id_host <- URI.parse(remote_actor) do
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object
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else
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_ ->
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nil
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end
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end
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@spec fetch_activity(id :: String.t()) :: map() | nil
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def fetch_activity(id) do
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fetch_object(id)
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end
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@spec fetch(uri :: String.t()) :: map() | nil
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defp fetch(uri) do
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Logger.debug("Attempting to fetch AP object at #{uri}")
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headers = [Accept: "application/activity+json, application/ld+json"]
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opts = [hackney: Application.get_env(:clacks, :hackney_opts, [])]
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with {:ok, %HTTPoison.Response{status_code: status_code, body: body}}
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when status_code in 200..299 <-
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HTTPoison.get(uri, headers, opts),
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{:ok, data} <- Jason.decode(body) do
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data
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else
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{:ok, %HTTPoison.Response{}} ->
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nil
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{:error, reason} ->
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Logger.warn("Couldn't fetch AP object at #{uri}: #{inspect(reason)}")
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nil
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end
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end
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end
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