mobilizon.chapril.org-mobil.../lib/web/controllers/activity_pub_controller.ex

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# Portions of this file are derived from Pleroma:
# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social>
# SPDX-License-Identifier: AGPL-3.0-only
# Upstream: https://git.pleroma.social/pleroma/pleroma/blob/develop/lib/pleroma/web/activity_pub/activity_pub_controller.ex
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defmodule Mobilizon.Web.ActivityPubController do
use Mobilizon.Web, :controller
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alias Mobilizon.{Actors, Config}
alias Mobilizon.Actors.Actor
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alias Mobilizon.Federation.ActivityPub
alias Mobilizon.Federation.ActivityPub.Federator
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alias Mobilizon.Web.ActivityPub.ActorView
alias Mobilizon.Web.Cache
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require Logger
action_fallback(:errors)
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plug(Mobilizon.Web.Plugs.Federating when action in [:inbox, :relay])
plug(:relay_active? when action in [:relay])
def relay_active?(conn, _) do
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if Config.get([:instance, :allow_relay]) do
conn
else
conn
|> put_status(404)
|> json("Not found")
|> halt()
end
end
def following(conn, %{"name" => name, "page" => page}) do
with {page, ""} <- Integer.parse(page),
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%Actor{} = actor <- Actors.get_local_actor_by_name_with_preload(name) do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(ActorView.render("following.json", %{actor: actor, page: page}))
end
end
def following(conn, %{"name" => name}) do
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with %Actor{} = actor <- Actors.get_local_actor_by_name_with_preload(name) do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(ActorView.render("following.json", %{actor: actor}))
end
end
def followers(conn, %{"name" => name, "page" => page}) do
with {page, ""} <- Integer.parse(page),
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%Actor{} = actor <- Actors.get_local_actor_by_name_with_preload(name) do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(ActorView.render("followers.json", %{actor: actor, page: page}))
end
end
def followers(conn, %{"name" => name}) do
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with %Actor{} = actor <- Actors.get_local_actor_by_name_with_preload(name) do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(ActorView.render("followers.json", %{actor: actor}))
end
end
def members(conn, %{"name" => name, "page" => page}) do
with {page, ""} <- Integer.parse(page),
%Actor{} = group <- Actors.get_local_actor_by_name_with_preload(name) do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(
ActorView.render("members.json", %{
group: group,
page: page,
actor_applicant: Map.get(conn.assigns, :actor)
})
)
end
end
def members(conn, %{"name" => name}) do
with %Actor{} = group <- Actors.get_local_actor_by_name_with_preload(name) do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(
ActorView.render("members.json", %{
group: group,
actor_applicant: Map.get(conn.assigns, :actor)
})
)
end
end
def resources(conn, %{"name" => name}) do
with %Actor{} = group <- Actors.get_local_actor_by_name_with_preload(name) do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(
ActorView.render("resources.json", %{
group: group,
actor_applicant: Map.get(conn.assigns, :actor)
})
)
end
end
def outbox(conn, %{"name" => name, "page" => page}) do
with {page, ""} <- Integer.parse(page),
%Actor{} = actor <- Actors.get_local_actor_by_name(name) do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(ActorView.render("outbox.json", %{actor: actor, page: page}))
end
end
def outbox(conn, %{"name" => name}) do
with %Actor{} = actor <- Actors.get_local_actor_by_name(name) do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(ActorView.render("outbox.json", %{actor: actor}))
end
end
# TODO: Ensure that this inbox is a recipient of the message
def inbox(%{assigns: %{valid_signature: true}} = conn, params) do
Logger.debug("Got something with valid signature inside inbox")
Federator.enqueue(:incoming_ap_doc, params)
json(conn, "ok")
end
# only accept relayed Creates
def inbox(conn, %{"type" => "Create"} = params) do
Logger.info(
"Signature missing or not from author, relayed Create message, fetching object from source"
)
ActivityPub.fetch_object_from_url(params["object"]["id"])
json(conn, "ok")
end
def inbox(conn, params) do
headers = Enum.into(conn.req_headers, %{})
if String.contains?(headers["signature"], params["actor"]) do
Logger.error(
"Signature validation error for: #{params["actor"]}, make sure you are forwarding the HTTP Host header!"
)
Logger.debug(inspect(conn.req_headers))
end
json(conn, "error")
end
def relay(conn, _params) do
with {status, %Actor{} = actor} when status in [:commit, :ok] <- Cache.get_relay() do
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(ActorView.render("actor.json", %{actor: actor}))
end
end
def errors(conn, {:error, :not_found}) do
conn
|> put_status(404)
|> json("Not found")
end
def errors(conn, e) do
Logger.debug(inspect(e))
conn
|> put_status(500)
|> json("Unknown Error")
end
end