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c4439c630f
grep -rl '# Copyright © .* Pleroma' * | xargs sed -i 's;Copyright © .* Pleroma .*;Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>;'
109 lines
3.2 KiB
Elixir
109 lines
3.2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.ActivityPub.Relay do
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alias Pleroma.Activity
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alias Pleroma.User
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alias Pleroma.Web.ActivityPub.ActivityPub
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alias Pleroma.Web.ActivityPub.Visibility
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alias Pleroma.Web.CommonAPI
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require Logger
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@nickname "relay"
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@spec ap_id() :: String.t()
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def ap_id, do: "#{Pleroma.Web.Endpoint.url()}/#{@nickname}"
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@spec get_actor() :: User.t() | nil
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def get_actor, do: User.get_or_create_service_actor_by_ap_id(ap_id(), @nickname)
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@spec follow(String.t()) :: {:ok, Activity.t()} | {:error, any()}
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def follow(target_instance) do
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with %User{} = local_user <- get_actor(),
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{:ok, %User{} = target_user} <- User.get_or_fetch_by_ap_id(target_instance),
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{:ok, _, _, activity} <- CommonAPI.follow(local_user, target_user) do
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Logger.info("relay: followed instance: #{target_instance}; id=#{activity.data["id"]}")
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{:ok, activity}
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else
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error -> format_error(error)
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end
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end
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@spec unfollow(String.t(), map()) :: {:ok, Activity.t()} | {:error, any()}
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def unfollow(target_instance, opts \\ %{}) do
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with %User{} = local_user <- get_actor(),
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{:ok, target_user} <- fetch_target_user(target_instance, opts),
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{:ok, activity} <- ActivityPub.unfollow(local_user, target_user) do
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case target_user.id do
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nil -> User.update_following_count(local_user)
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_ -> User.unfollow(local_user, target_user)
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end
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Logger.info("relay: unfollowed instance: #{target_instance}: id=#{activity.data["id"]}")
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{:ok, activity}
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else
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error -> format_error(error)
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end
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end
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defp fetch_target_user(ap_id, opts) do
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case {opts[:force], User.get_or_fetch_by_ap_id(ap_id)} do
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{_, {:ok, %User{} = user}} -> {:ok, user}
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{true, _} -> {:ok, %User{ap_id: ap_id}}
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{_, error} -> error
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end
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end
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@spec publish(any()) :: {:ok, Activity.t()} | {:error, any()}
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def publish(%Activity{data: %{"type" => "Create"}} = activity) do
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with %User{} = user <- get_actor(),
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true <- Visibility.is_public?(activity) do
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CommonAPI.repeat(activity.id, user)
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else
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error -> format_error(error)
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end
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end
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def publish(_), do: {:error, "Not implemented"}
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@spec list() :: {:ok, [%{actor: String.t(), followed_back: boolean()}]} | {:error, any()}
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def list do
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with %User{} = user <- get_actor() do
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accepted =
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user
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|> following()
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|> Enum.map(fn actor -> %{actor: actor, followed_back: true} end)
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without_accept =
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user
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|> Pleroma.Activity.following_requests_for_actor()
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|> Enum.map(fn activity -> %{actor: activity.data["object"], followed_back: false} end)
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|> Enum.uniq()
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{:ok, accepted ++ without_accept}
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else
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error -> format_error(error)
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end
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end
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@spec following() :: [String.t()]
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def following do
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get_actor()
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|> following()
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end
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defp following(user) do
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user
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|> User.following_ap_ids()
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|> Enum.uniq()
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end
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defp format_error({:error, error}), do: format_error(error)
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defp format_error(error) do
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Logger.error("error: #{inspect(error)}")
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{:error, error}
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end
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end
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