156eba0551
Allow to exclude a member Send emails to the member when it's excluded Signed-off-by: Thomas Citharel <tcit@tcit.fr>
132 lines
3.8 KiB
Elixir
132 lines
3.8 KiB
Elixir
defmodule Mobilizon.Federation.ActivityStream.Converter.Resource do
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@moduledoc """
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Resource converter.
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This module allows to convert resources from ActivityStream format to our own
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internal one, and back.
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"""
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alias Mobilizon.Actors.Actor
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alias Mobilizon.Federation.ActivityPub
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alias Mobilizon.Federation.ActivityPub.Utils
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alias Mobilizon.Federation.ActivityStream.{Converter, Convertible}
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alias Mobilizon.Resources
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alias Mobilizon.Resources.Resource
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require Logger
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@behaviour Converter
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defimpl Convertible, for: Resource do
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alias Mobilizon.Federation.ActivityStream.Converter.Resource, as: ResourceConverter
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defdelegate model_to_as(resource), to: ResourceConverter
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end
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@doc """
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Convert an resource struct to an ActivityStream representation
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"""
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@impl Converter
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@spec model_to_as(Resource.t()) :: map
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def model_to_as(
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%Resource{actor: %Actor{url: actor_url}, creator: %Actor{url: creator_url}, type: type} =
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resource
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) do
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res = %{
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"actor" => creator_url,
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"id" => resource.url,
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"name" => resource.title,
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"summary" => resource.summary,
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"context" => get_context(resource),
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"attributedTo" => actor_url,
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"published" => resource.published_at |> DateTime.to_iso8601()
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}
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case type do
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:folder ->
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Map.put(res, "type", "ResourceCollection")
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_ ->
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res
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|> Map.put("type", "Document")
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|> Map.put("url", resource.resource_url)
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end
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end
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@doc """
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Converts an AP object data to our internal data structure.
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"""
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@impl Converter
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@spec as_to_model_data(map) :: {:ok, map} | {:error, any()}
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def as_to_model_data(%{"type" => type, "actor" => creator, "attributedTo" => group} = object) do
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with {:ok, %Actor{id: actor_id, resources_url: resources_url}} <- get_actor(group),
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{:ok, %Actor{id: creator_id}} <- get_actor(creator),
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parent_id <- get_parent_id(object["context"], resources_url) do
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data = %{
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title: object["name"],
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summary: object["summary"],
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url: object["id"],
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actor_id: actor_id,
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creator_id: creator_id,
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parent_id: parent_id,
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published_at: object["published"]
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}
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case type do
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"Document" ->
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data
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|> Map.put(:type, :link)
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|> Map.put(:resource_url, object["url"])
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"ResourceCollection" ->
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data
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|> Map.put(:type, :folder)
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end
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else
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{:error, err} -> {:error, err}
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err -> {:error, err}
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end
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end
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@spec get_actor(String.t() | map() | nil) :: {:ok, Actor.t()} | {:error, String.t()}
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defp get_actor(nil), do: {:error, "nil property found for actor data"}
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defp get_actor(actor), do: actor |> Utils.get_url() |> ActivityPub.get_or_fetch_actor_by_url()
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defp get_context(%Resource{parent_id: nil, actor: %Actor{resources_url: resources_url}}),
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do: resources_url
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defp get_context(%Resource{parent: %Resource{url: url}}), do: url
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defp get_context(%Resource{parent_id: parent_id}),
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do: parent_id |> Resources.get_resource() |> Map.get(:url)
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@spec get_parent_id(String.t(), String.t()) :: Resource.t() | map()
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defp get_parent_id(context, resources_url) do
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Logger.debug(
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"Getting parentID for context #{inspect(context)} and with resources_url #{
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inspect(resources_url)
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}"
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)
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case Utils.get_url(context) do
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nil -> nil
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^resources_url -> nil
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context_url -> fetch_resource(context_url)
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end
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end
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defp fetch_resource(context_url) do
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case Resources.get_resource_by_url(context_url) do
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%Resource{id: resource_id} = _resource ->
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resource_id
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nil ->
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case ActivityPub.fetch_object_from_url(context_url) do
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{:ok, %Resource{id: resource_id} = _resource} ->
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resource_id
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_ ->
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nil
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end
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end
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end
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end
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