pleroma/lib/pleroma/bbs/handler.ex

247 lines
6.4 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2023 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})")
status.content
|> String.split("<br/>")
|> Enum.map(&HTML.strip_tags/1)
|> Enum.map(&HtmlEntities.decode/1)
|> Enum.map(&IO.puts/1)
end
def puts_notification(activity, user) do
notification =
Pleroma.Web.MastodonAPI.NotificationView.render("show.json", %{
notification: activity,
for: user
})
IO.puts(
"== (#{notification.type}) #{notification.status.id} by #{notification.account.display_name} (#{notification.account.acct})"
)
notification.status.content
|> String.split("<br/>")
|> Enum.map(&HTML.strip_tags/1)
|> Enum.map(&HtmlEntities.decode/1)
|> (fn x ->
case x do
[content] ->
"> " <> content
[head | _tail] ->
# "> " <> hd <> "..."
head
|> String.slice(1, 80)
|> (fn x -> "> " <> x <> "..." end).()
end
end).()
|> IO.puts()
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("t <id> - Show a thread from the given id")
IO.puts("n - Show notifications")
IO.puts("n read - Mark all notifactions as read")
IO.puts("f <id> - Favourites the post with the given id")
IO.puts("R <id> - Repeat 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, "t " <> activity_id) do
with %Activity{} = activity <- Activity.get_by_id(activity_id) do
activities =
ActivityPub.fetch_activities_for_context(activity.data["context"], %{
blocking_user: user,
user: user,
exclude_id: activity.id
})
case activities do
[] ->
activity_id
|> Activity.get_by_id()
|> puts_activity()
_ ->
activities
|> Enum.reverse()
|> Enum.each(&puts_activity/1)
end
else
_e -> IO.puts("Could not show this thread...")
end
state
end
def handle_command(%{user: user} = state, "n read") do
Pleroma.Notification.clear(user)
IO.puts("All notifications were marked as read")
state
end
def handle_command(%{user: user} = state, "n") do
user
|> Pleroma.Web.MastodonAPI.MastodonAPI.get_notifications(%{})
|> Enum.each(&puts_notification(&1, user))
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! ID: #{activity.id}")
else
_e -> IO.puts("Could not post...")
end
state
end
def handle_command(%{user: user} = state, "f " <> id) do
id = String.trim(id)
with %Activity{} = activity <- Activity.get_by_id(id),
{:ok, _activity} <- CommonAPI.favorite(user, activity) do
IO.puts("Favourited!")
else
_e -> IO.puts("Could not Favourite...")
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})
{:input, ^input, {: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