forked from potsda.mn/mobilizon
71 lines
2 KiB
Elixir
71 lines
2 KiB
Elixir
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defmodule Mobilizon.Service.ActivityPub.Converters.Event do
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@moduledoc """
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Event converter
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This module allows to convert events from ActivityStream format to our own internal one, and back
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"""
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alias Mobilizon.Actors
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alias Mobilizon.Media
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alias Mobilizon.Media.Picture
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alias Mobilizon.Actors.Actor
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alias Mobilizon.Events.Event, as: EventModel
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alias Mobilizon.Service.ActivityPub.Converter
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@behaviour Converter
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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()) :: map()
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def as_to_model_data(object) do
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with {:ok, %Actor{id: actor_id}} <- Actors.get_actor_by_url(object["actor"]) do
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picture_id =
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with true <- Map.has_key?(object, "attachment"),
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%Picture{id: picture_id} <-
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Media.get_picture_by_url(
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object["attachment"]
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|> hd
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|> Map.get("url")
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|> hd
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|> Map.get("href")
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) do
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picture_id
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else
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_ -> nil
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end
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%{
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"title" => object["name"],
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"description" => object["content"],
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"organizer_actor_id" => actor_id,
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"picture_id" => picture_id,
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"begins_on" => object["begins_on"],
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"category" => object["category"],
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"url" => object["id"],
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"uuid" => object["uuid"]
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}
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end
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end
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@doc """
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Convert an event struct to an ActivityStream representation
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"""
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@impl Converter
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@spec model_to_as(EventModel.t()) :: map()
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def model_to_as(%EventModel{} = event) do
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%{
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"type" => "Event",
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"to" => ["https://www.w3.org/ns/activitystreams#Public"],
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"title" => event.title,
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"actor" => event.organizer_actor.url,
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"uuid" => event.uuid,
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"category" => event.category,
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"summary" => event.description,
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"publish_at" => (event.publish_at || event.inserted_at) |> DateTime.to_iso8601(),
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"updated_at" => event.updated_at |> DateTime.to_iso8601(),
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"id" => event.url
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}
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end
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end
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