1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Gopher.Server do
10 config = Pleroma.Config.get(:gopher, [])
11 ip = Keyword.get(config, :ip, {0, 0, 0, 0})
12 port = Keyword.get(config, :port, 1234)
14 if Keyword.get(config, :enabled, false) do
15 GenServer.start_link(__MODULE__, [ip, port], [])
17 Logger.info("Gopher server disabled")
22 def init([ip, port]) do
23 Logger.info("Starting gopher server on #{port}")
25 :ranch.start_listener(
30 __MODULE__.ProtocolHandler,
34 {:ok, %{ip: ip, port: port}}
38 defmodule Pleroma.Gopher.Server.ProtocolHandler do
39 alias Pleroma.Web.ActivityPub.ActivityPub
40 alias Pleroma.{Activity, HTML, User, Repo}
42 def start_link(ref, socket, transport, opts) do
43 pid = spawn_link(__MODULE__, :init, [ref, socket, transport, opts])
47 def init(ref, socket, transport, [] = _Opts) do
48 :ok = :ranch.accept_ack(ref)
49 loop(socket, transport)
53 text = String.replace(text, ~r/[\t\n]/, "")
55 String.split(text, "\r")
56 |> Enum.map(fn text ->
57 "i#{text}\tfake\t(NULL)\t0\r\n"
62 def link(name, selector, type \\ 1) do
63 address = Pleroma.Web.Endpoint.host()
64 port = Pleroma.Config.get([:gopher, :port], 1234)
65 "#{type}#{name}\t#{selector}\t#{address}\t#{port}\r\n"
68 def render_activities(activities) do
71 |> Enum.map(fn activity ->
72 user = User.get_cached_by_ap_id(activity.data["actor"])
74 object = activity.data["object"]
75 like_count = object["like_count"] || 0
76 announcement_count = object["announcement_count"] || 0
78 link("Post ##{activity.id} by #{user.nickname}", "/notices/#{activity.id}") <>
79 info("#{like_count} likes, #{announcement_count} repeats") <>
80 "i\tfake\t(NULL)\t0\r\n" <>
81 info(HTML.strip_tags(String.replace(activity.data["object"]["content"], "<br>", "\r")))
83 |> Enum.join("i\tfake\t(NULL)\t0\r\n")
87 info("Welcome to #{Pleroma.Config.get([:instance, :name], "Pleroma")}!") <>
88 link("Public Timeline", "/main/public") <>
89 link("Federated Timeline", "/main/all") <> ".\r\n"
92 def response("/main/public") do
94 ActivityPub.fetch_public_activities(%{"type" => ["Create"], "local_only" => true})
97 info("Welcome to the Public Timeline!") <> posts <> ".\r\n"
100 def response("/main/all") do
102 ActivityPub.fetch_public_activities(%{"type" => ["Create"]})
105 info("Welcome to the Federated Timeline!") <> posts <> ".\r\n"
108 def response("/notices/" <> id) do
109 with %Activity{} = activity <- Repo.get(Activity, id),
110 true <- ActivityPub.is_public?(activity) do
112 ActivityPub.fetch_activities_for_context(activity.data["context"])
115 user = User.get_cached_by_ap_id(activity.data["actor"])
117 info("Post #{activity.id} by #{user.nickname}") <>
118 link("More posts by #{user.nickname}", "/users/#{user.nickname}") <> activities <> ".\r\n"
121 info("Not public") <> ".\r\n"
125 def response("/users/" <> nickname) do
126 with %User{} = user <- User.get_cached_by_nickname(nickname) do
128 "type" => ["Create"],
129 "actor_id" => user.ap_id
133 ActivityPub.fetch_public_activities(params)
136 info("Posts by #{user.nickname}") <> activities <> ".\r\n"
139 info("No such user") <> ".\r\n"
143 def loop(socket, transport) do
144 case transport.recv(socket, 0, 5000) do
146 data = String.trim_trailing(data, "\r\n")
147 transport.send(socket, response(data))
148 :ok = transport.close(socket)
151 :ok = transport.close(socket)