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- # Pleroma: A lightweight social networking server
- # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
- # SPDX-License-Identifier: AGPL-3.0-only
-
- defmodule Pleroma.BBS.Handler do
- use Sshd.ShellHandler
- alias Pleroma.Activity
- alias Pleroma.HTML
- alias Pleroma.Web.ActivityPub.ActivityPub
- alias Pleroma.Web.CommonAPI
-
- def on_shell(username, _pubkey, _ip, _port) do
- :ok = IO.puts("Welcome to #{Pleroma.Config.get([:instance, :name])}!")
- user = Pleroma.User.get_cached_by_nickname(to_string(username))
- Logger.debug("#{inspect(user)}")
- loop(run_state(user: user))
- end
-
- def on_connect(username, ip, port, method) do
- Logger.debug(fn ->
- """
- Incoming SSH shell #{inspect(self())} requested for #{username} from #{inspect(ip)}:#{
- inspect(port)
- } using #{inspect(method)}
- """
- end)
- end
-
- def on_disconnect(username, ip, port) do
- Logger.debug(fn ->
- "Disconnecting SSH shell for #{username} from #{inspect(ip)}:#{inspect(port)}"
- end)
- end
-
- defp loop(state) do
- self_pid = self()
- counter = state.counter
- prefix = state.prefix
- user = state.user
-
- input = spawn(fn -> io_get(self_pid, prefix, counter, user.nickname) end)
- wait_input(state, input)
- end
-
- def puts_activity(activity) do
- status = Pleroma.Web.MastodonAPI.StatusView.render("show.json", %{activity: activity})
- IO.puts("-- #{status.id} by #{status.account.display_name} (#{status.account.acct})")
- IO.puts(HTML.strip_tags(status.content))
- IO.puts("")
- end
-
- def handle_command(state, "help") do
- IO.puts("Available commands:")
- IO.puts("help - This help")
- IO.puts("home - Show the home timeline")
- IO.puts("p <text> - Post the given text")
- IO.puts("r <id> <text> - Reply to the post with the given id")
- IO.puts("quit - Quit")
-
- state
- end
-
- def handle_command(%{user: user} = state, "r " <> text) do
- text = String.trim(text)
- [activity_id, rest] = String.split(text, " ", parts: 2)
-
- with %Activity{} <- Activity.get_by_id(activity_id),
- {:ok, _activity} <-
- CommonAPI.post(user, %{status: rest, in_reply_to_status_id: activity_id}) do
- IO.puts("Replied!")
- else
- _e -> IO.puts("Could not reply...")
- end
-
- state
- end
-
- def handle_command(%{user: user} = state, "p " <> text) do
- text = String.trim(text)
-
- with {:ok, _activity} <- CommonAPI.post(user, %{status: text}) do
- IO.puts("Posted!")
- else
- _e -> IO.puts("Could not post...")
- end
-
- state
- end
-
- def handle_command(state, "home") do
- user = state.user
-
- params =
- %{}
- |> Map.put(:type, ["Create"])
- |> Map.put(:blocking_user, user)
- |> Map.put(:muting_user, user)
- |> Map.put(:user, user)
-
- activities =
- [user.ap_id | Pleroma.User.following(user)]
- |> ActivityPub.fetch_activities(params)
-
- Enum.each(activities, fn activity ->
- puts_activity(activity)
- end)
-
- state
- end
-
- def handle_command(state, command) do
- IO.puts("Unknown command '#{command}'")
- state
- end
-
- defp wait_input(state, input) do
- receive do
- {:input, ^input, "quit\n"} ->
- IO.puts("Exiting...")
-
- {:input, ^input, code} when is_binary(code) ->
- code = String.trim(code)
-
- state = handle_command(state, code)
-
- loop(%{state | counter: state.counter + 1})
-
- {:error, :interrupted} ->
- IO.puts("Caught Ctrl+C...")
- loop(%{state | counter: state.counter + 1})
-
- {:input, ^input, msg} ->
- :ok = Logger.warn("received unknown message: #{inspect(msg)}")
- loop(%{state | counter: state.counter + 1})
- end
- end
-
- defp run_state(opts) do
- %{prefix: "pleroma", counter: 1, user: opts[:user]}
- end
-
- defp io_get(pid, prefix, counter, username) do
- prompt = prompt(prefix, counter, username)
- send(pid, {:input, self(), IO.gets(:stdio, prompt)})
- end
-
- defp prompt(prefix, counter, username) do
- prompt = "#{username}@#{prefix}:#{counter}>"
- prompt <> " "
- end
- end
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