mobilizon/lib/service/activity_pub/converter/actor.ex

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defmodule Mobilizon.Service.ActivityPub.Converter.Actor do
@moduledoc """
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Actor 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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alias Mobilizon.Actors.Actor, as: ActorModel
alias Mobilizon.Service.ActivityPub.{Converter, Convertible, Utils}
@behaviour Converter
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defimpl Convertible, for: ActorModel do
alias Mobilizon.Service.ActivityPub.Converter.Actor, as: ActorConverter
defdelegate model_to_as(actor), to: ActorConverter
end
@doc """
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Converts an AP object data to our internal data structure.
"""
@impl Converter
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@spec as_to_model_data(map) :: map
def as_to_model_data(data) do
avatar =
data["icon"]["url"] &&
%{
"name" => data["icon"]["name"] || "avatar",
"url" => MobilizonWeb.MediaProxy.url(data["icon"]["url"])
}
banner =
data["image"]["url"] &&
%{
"name" => data["image"]["name"] || "banner",
"url" => MobilizonWeb.MediaProxy.url(data["image"]["url"])
}
actor_data = %{
url: data["id"],
avatar: avatar,
banner: banner,
name: data["name"],
preferred_username: data["preferredUsername"],
summary: data["summary"],
keys: data["publicKey"]["publicKeyPem"],
inbox_url: data["inbox"],
outbox_url: data["outbox"],
following_url: data["following"],
followers_url: data["followers"],
shared_inbox_url: data["endpoints"]["sharedInbox"],
domain: URI.parse(data["id"]).host,
manually_approves_followers: data["manuallyApprovesFollowers"],
type: data["type"]
}
{:ok, actor_data}
end
@doc """
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Convert an actor struct to an ActivityStream representation.
"""
@impl Converter
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@spec model_to_as(ActorModel.t()) :: map
def model_to_as(%ActorModel{} = actor) do
actor_data = %{
"id" => actor.url,
"type" => actor.type,
"preferredUsername" => actor.preferred_username,
"name" => actor.name,
"summary" => actor.summary,
"following" => actor.following_url,
"followers" => actor.followers_url,
"inbox" => actor.inbox_url,
"outbox" => actor.outbox_url,
"url" => actor.url,
"endpoints" => %{
"sharedInbox" => actor.shared_inbox_url
},
"manuallyApprovesFollowers" => actor.manually_approves_followers,
"publicKey" => %{
"id" => "#{actor.url}#main-key",
"owner" => actor.url,
"publicKeyPem" =>
if(is_nil(actor.domain) and not is_nil(actor.keys),
do: Utils.pem_to_public_key_pem(actor.keys),
else: actor.keys
)
}
}
actor_data =
if is_nil(actor.avatar) do
actor_data
else
Map.put(actor_data, "icon", %{
"type" => "Image",
"mediaType" => actor.avatar.content_type,
"url" => actor.avatar.url
})
end
if is_nil(actor.banner) do
actor_data
else
Map.put(actor_data, "image", %{
"type" => "Image",
"mediaType" => actor.banner.content_type,
"url" => actor.banner.url
})
end
end
end