version chapril de mobilizon https://mobilizon.chapril.org/
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defmodule Mobilizon.Federation.ActivityPub.Types.Actors do
@moduledoc false
alias Mobilizon.Actors
alias Mobilizon.Actors.{Actor, Follower, Member}
alias Mobilizon.Federation.ActivityPub
alias Mobilizon.Federation.ActivityPub.{Audience, Relay}
alias Mobilizon.Federation.ActivityPub.Types.Entity
alias Mobilizon.Federation.ActivityStream.Convertible
alias Mobilizon.GraphQL.API.Utils, as: APIUtils
alias Mobilizon.Service.Activity.Group, as: GroupActivity
alias Mobilizon.Service.Formatter.HTML
alias Mobilizon.Service.Notifications.Scheduler
alias Mobilizon.Web.Email.Follow, as: FollowMailer
alias Mobilizon.Web.Endpoint
import Mobilizon.Federation.ActivityPub.Utils, only: [make_create_data: 2, make_update_data: 2]
@behaviour Entity
@impl Entity
@spec create(map(), map()) :: {:ok, map()}
def create(args, additional) do
with args <- prepare_args_for_actor(args),
{:ok, %Actor{} = actor} <- Actors.create_actor(args),
{:ok, _} <-
GroupActivity.insert_activity(actor,
subject: "group_created",
actor_id: args.creator_actor_id
),
actor_as_data <- Convertible.model_to_as(actor),
audience <- %{"to" => ["https://www.w3.org/ns/activitystreams#Public"], "cc" => []},
create_data <-
make_create_data(actor_as_data, Map.merge(audience, additional)) do
{:ok, actor, create_data}
end
end
@impl Entity
@spec update(Actor.t(), map, map) :: {:ok, Actor.t(), Activity.t()} | any
def update(%Actor{} = old_actor, args, additional) do
with {:ok, %Actor{} = new_actor} <- Actors.update_actor(old_actor, args),
{:ok, _} <-
GroupActivity.insert_activity(new_actor,
subject: "group_updated",
old_group: old_actor,
updater_actor: Map.get(args, :updater_actor)
),
actor_as_data <- Convertible.model_to_as(new_actor),
{:ok, true} <- Cachex.del(:activity_pub, "actor_#{new_actor.preferred_username}"),
audience <-
Audience.calculate_to_and_cc_from_mentions(new_actor),
additional <- Map.merge(additional, %{"actor" => old_actor.url}),
update_data <- make_update_data(actor_as_data, Map.merge(audience, additional)) do
{:ok, new_actor, update_data}
end
end
@public_ap "https://www.w3.org/ns/activitystreams#Public"
@impl Entity
def delete(
%Actor{
followers_url: followers_url,
members_url: members_url,
url: target_actor_url,
type: type,
domain: domain
} = target_actor,
%Actor{url: actor_url, id: author_id} = actor,
_local,
additionnal
) do
to = [@public_ap, followers_url]
{to, cc} =
if type == :Group do
{to ++ [members_url], [target_actor_url]}
else
{to, []}
end
activity_data = %{
"type" => "Delete",
"actor" => actor_url,
"object" => Convertible.model_to_as(target_actor),
"id" => target_actor_url <> "/delete",
"to" => to,
"cc" => cc
}
suspension = Map.get(additionnal, :suspension, false)
with {:ok, %Oban.Job{}} <-
Actors.delete_actor(target_actor,
# We completely delete the actor if the actor is remote
reserve_username: is_nil(domain),
suspension: suspension,
author_id: author_id
) do
{:ok, activity_data, actor, target_actor}
end
end
def actor(%Actor{} = actor), do: actor
def group_actor(%Actor{} = actor), do: actor
def role_needed_to_update(%Actor{} = _group), do: :administrator
def role_needed_to_delete(%Actor{} = _group), do: :administrator
@spec join(Actor.t(), Actor.t(), boolean(), map()) :: {:ok, map(), Member.t()}
def join(%Actor{type: :Group} = group, %Actor{} = actor, _local, additional) do
with role <-
additional
|> Map.get(:metadata, %{})
|> Map.get(:role, Mobilizon.Actors.get_default_member_role(group)),
{:ok, %Member{} = member} <-
Mobilizon.Actors.create_member(%{
role: role,
parent_id: group.id,
actor_id: actor.id,
url: Map.get(additional, :url),
metadata:
additional
|> Map.get(:metadata, %{})
|> Map.update(:message, nil, &String.trim(HTML.strip_tags(&1)))
}),
{:ok, _} <-
Mobilizon.Service.Activity.Member.insert_activity(member, subject: "member_joined"),
Absinthe.Subscription.publish(Endpoint, actor,
group_membership_changed: [Actor.preferred_username_and_domain(group), actor.id]
),
join_data <- %{
"type" => "Join",
"id" => member.url,
"actor" => actor.url,
"object" => group.url
},
audience <-
Audience.calculate_to_and_cc_from_mentions(member) do
approve_if_default_role_is_member(
group,
actor,
Map.merge(join_data, audience),
member,
role
)
end
end
def follow(%Actor{} = follower_actor, %Actor{type: type} = followed, _local, additional)
when type != :Person do
with {:ok, %Follower{} = follower} <-
Mobilizon.Actors.follow(followed, follower_actor, additional["activity_id"], false),
:ok <- FollowMailer.send_notification_to_admins(follower),
follower_as_data <- Convertible.model_to_as(follower) do
approve_if_manually_approves_followers(follower, follower_as_data)
end
end
def follow(_, _, _, _), do: {:error, :no_person, "Only group and instances can be followed"}
defp prepare_args_for_actor(args) do
args
|> maybe_sanitize_username()
|> maybe_sanitize_summary()
end
@spec maybe_sanitize_username(map()) :: map()
defp maybe_sanitize_username(%{preferred_username: preferred_username} = args) do
Map.put(args, :preferred_username, preferred_username |> HTML.strip_tags() |> String.trim())
end
defp maybe_sanitize_username(args), do: args
@spec maybe_sanitize_summary(map()) :: map()
defp maybe_sanitize_summary(%{summary: summary} = args) do
{summary, _mentions, _tags} =
summary
|> String.trim()
|> APIUtils.make_content_html([], "text/html")
Map.put(args, :summary, summary)
end
defp maybe_sanitize_summary(args), do: args
# Set the participant to approved if the default role for new participants is :participant
@spec approve_if_default_role_is_member(Actor.t(), Actor.t(), map(), Member.t(), atom()) ::
{:ok, map(), Member.t()}
defp approve_if_default_role_is_member(
%Actor{type: :Group} = group,
%Actor{} = actor,
activity_data,
%Member{} = member,
role
) do
if is_nil(group.domain) && !is_nil(actor.domain) do
cond do
Mobilizon.Actors.get_default_member_role(group) === :member &&
role == :member ->
{:accept,
ActivityPub.accept(
:join,
member,
true,
%{"actor" => group.url}
)}
Mobilizon.Actors.get_default_member_role(group) === :not_approved &&
role == :not_approved ->
Scheduler.pending_membership_notification(group)
{:ok, activity_data, member}
true ->
{:ok, activity_data, member}
end
else
{:ok, activity_data, member}
end
end
defp approve_if_manually_approves_followers(
%Follower{} = follower,
follow_as_data
) do
%Actor{id: relay_id} = Relay.get_actor()
unless follower.target_actor.manually_approves_followers or
follower.target_actor.id == relay_id do
{:accept,
ActivityPub.accept(
:follow,
follower,
true,
%{"actor" => follower.actor.url}
)}
end
{:ok, follow_as_data, follower}
end
end