+++ /dev/null
-# Pleroma: A lightweight social networking server
-# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
-# SPDX-License-Identifier: AGPL-3.0-only
-
-defmodule Pleroma.Gopher.Server do
- use GenServer
- require Logger
-
- def start_link(_) do
- config = Pleroma.Config.get(:gopher, [])
- ip = Keyword.get(config, :ip, {0, 0, 0, 0})
- port = Keyword.get(config, :port, 1234)
-
- if Keyword.get(config, :enabled, false) do
- GenServer.start_link(__MODULE__, [ip, port], [])
- else
- Logger.info("Gopher server disabled")
- :ignore
- end
- end
-
- def init([ip, port]) do
- Logger.info("Starting gopher server on #{port}")
-
- :ranch.start_listener(
- :gopher,
- 100,
- :ranch_tcp,
- [ip: ip, port: port],
- __MODULE__.ProtocolHandler,
- []
- )
-
- {:ok, %{ip: ip, port: port}}
- end
-end
-
-defmodule Pleroma.Gopher.Server.ProtocolHandler do
- alias Pleroma.Activity
- alias Pleroma.HTML
- alias Pleroma.Object
- alias Pleroma.User
- alias Pleroma.Web.ActivityPub.ActivityPub
- alias Pleroma.Web.ActivityPub.Visibility
-
- def start_link(ref, socket, transport, opts) do
- pid = spawn_link(__MODULE__, :init, [ref, socket, transport, opts])
- {:ok, pid}
- end
-
- def init(ref, socket, transport, [] = _Opts) do
- :ok = :ranch.accept_ack(ref)
- loop(socket, transport)
- end
-
- def info(text) do
- text = String.replace(text, ~r/[\t\n]/, "")
-
- String.split(text, "\r")
- |> Enum.map(fn text ->
- "i#{text}\tfake\t(NULL)\t0\r\n"
- end)
- |> Enum.join("")
- end
-
- def link(name, selector, type \\ 1) do
- address = Pleroma.Web.Endpoint.host()
- port = Pleroma.Config.get([:gopher, :port], 1234)
- dstport = Pleroma.Config.get([:gopher, :dstport], port)
- "#{type}#{name}\t#{selector}\t#{address}\t#{dstport}\r\n"
- end
-
- def render_activities(activities) do
- activities
- |> Enum.reverse()
- |> Enum.map(fn activity ->
- user = User.get_cached_by_ap_id(activity.data["actor"])
-
- object = Object.normalize(activity, fetch: false)
- like_count = object.data["like_count"] || 0
- announcement_count = object.data["announcement_count"] || 0
-
- link("Post ##{activity.id} by #{user.nickname}", "/notices/#{activity.id}") <>
- info("#{like_count} likes, #{announcement_count} repeats") <>
- "i\tfake\t(NULL)\t0\r\n" <>
- info(HTML.strip_tags(String.replace(object.data["content"], "<br>", "\r")))
- end)
- |> Enum.join("i\tfake\t(NULL)\t0\r\n")
- end
-
- def response("") do
- info("Welcome to #{Pleroma.Config.get([:instance, :name], "Pleroma")}!") <>
- link("Public Timeline", "/main/public") <>
- link("Federated Timeline", "/main/all") <> ".\r\n"
- end
-
- def response("/main/public") do
- posts =
- %{type: ["Create"], local_only: true}
- |> ActivityPub.fetch_public_activities()
- |> render_activities()
-
- info("Welcome to the Public Timeline!") <> posts <> ".\r\n"
- end
-
- def response("/main/all") do
- posts =
- %{type: ["Create"]}
- |> ActivityPub.fetch_public_activities()
- |> render_activities()
-
- info("Welcome to the Federated Timeline!") <> posts <> ".\r\n"
- end
-
- def response("/notices/" <> id) do
- with %Activity{} = activity <- Activity.get_by_id(id),
- true <- Visibility.is_public?(activity) do
- activities =
- ActivityPub.fetch_activities_for_context(activity.data["context"])
- |> render_activities
-
- user = User.get_cached_by_ap_id(activity.data["actor"])
-
- info("Post #{activity.id} by #{user.nickname}") <>
- link("More posts by #{user.nickname}", "/users/#{user.nickname}") <> activities <> ".\r\n"
- else
- _e ->
- info("Not public") <> ".\r\n"
- end
- end
-
- def response("/users/" <> nickname) do
- with %User{} = user <- User.get_cached_by_nickname(nickname) do
- params = %{
- type: ["Create"],
- actor_id: user.ap_id
- }
-
- activities =
- params
- |> ActivityPub.fetch_public_activities()
- |> render_activities()
-
- info("Posts by #{user.nickname}") <> activities <> ".\r\n"
- else
- _e ->
- info("No such user") <> ".\r\n"
- end
- end
-
- def loop(socket, transport) do
- case transport.recv(socket, 0, 5000) do
- {:ok, data} ->
- data = String.trim_trailing(data, "\r\n")
- transport.send(socket, response(data))
- :ok = transport.close(socket)
-
- _ ->
- :ok = transport.close(socket)
- end
- end
-end
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