95 lines
2.6 KiB
Elixir
95 lines
2.6 KiB
Elixir
defmodule Pleroma.Object.Fetcher do
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alias Pleroma.HTTP
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alias Pleroma.Object
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alias Pleroma.Object.Containment
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alias Pleroma.Web.ActivityPub.Transmogrifier
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alias Pleroma.Web.OStatus
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require Logger
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defp reinject_object(data) do
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Logger.debug("Reinjecting object #{data["id"]}")
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with data <- Transmogrifier.fix_object(data),
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{:ok, object} <- Object.create(data) do
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{:ok, object}
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else
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e ->
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Logger.error("Error while processing object: #{inspect(e)}")
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{:error, e}
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end
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end
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# TODO:
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# This will create a Create activity, which we need internally at the moment.
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def fetch_object_from_id(id, options \\ []) do
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if object = Object.get_cached_by_ap_id(id) do
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{:ok, object}
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else
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Logger.info("Fetching #{id} via AP")
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with {:ok, data} <- fetch_and_contain_remote_object_from_id(id),
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nil <- Object.normalize(data, false),
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params <- %{
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"type" => "Create",
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"to" => data["to"],
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"cc" => data["cc"],
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"actor" => data["actor"] || data["attributedTo"],
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"object" => data
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},
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:ok <- Containment.contain_origin(id, params),
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{:ok, activity} <- Transmogrifier.handle_incoming(params, options),
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{:object, _data, %Object{} = object} <-
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{:object, data, Object.normalize(activity, false)} do
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{:ok, object}
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else
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{:error, {:reject, nil}} ->
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{:reject, nil}
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{:object, data, nil} ->
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reinject_object(data)
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object = %Object{} ->
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{:ok, object}
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_e ->
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Logger.info("Couldn't get object via AP, trying out OStatus fetching...")
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case OStatus.fetch_activity_from_url(id) do
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{:ok, [activity | _]} -> {:ok, Object.normalize(activity, false)}
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e -> e
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end
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end
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end
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end
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def fetch_object_from_id!(id, options \\ []) do
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with {:ok, object} <- fetch_object_from_id(id, options) do
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object
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else
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_e ->
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nil
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end
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end
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def fetch_and_contain_remote_object_from_id(id) do
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Logger.info("Fetching object #{id} via AP")
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with true <- String.starts_with?(id, "http"),
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{:ok, %{body: body, status: code}} when code in 200..299 <-
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HTTP.get(
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id,
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[{:Accept, "application/activity+json"}]
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),
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{:ok, data} <- Jason.decode(body),
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:ok <- Containment.contain_origin_from_id(id, data) do
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{:ok, data}
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else
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{:ok, %{status: code}} when code in [404, 410] ->
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{:error, "Object has been deleted"}
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e ->
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{:error, e}
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end
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end
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end
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