commit: 4e5aa3b3a0c0c90ef42aadfb3eaf415955cf86b2
parent: 5cc1cfcfd7b987ccf86f7bfd0de25331d208f03c
Author: lain <lain@soykaf.club>
Date: Sat, 31 Mar 2018 17:51:33 +0200
Add gopher server.
Diffstat:
3 files changed, 148 insertions(+), 0 deletions(-)
diff --git a/config/config.exs b/config/config.exs
@@ -64,6 +64,11 @@ config :ecto, json_library: Jason
config :phoenix, :format_encoders, json: Jason
+config :pleroma, :gopher,
+ enabled: false,
+ ip: {0, 0, 0, 0},
+ port: 9999
+
# Import environment specific config. This must remain at the bottom
# of this file so it overrides the configuration defined above.
import_config "#{Mix.env()}.exs"
diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
@@ -24,6 +24,7 @@ defmodule Pleroma.Application do
]
]),
worker(Pleroma.Web.Federator, []),
+ worker(Pleroma.Gopher.Server, []),
worker(Pleroma.Stats, [])
] ++
if Mix.env() == :test,
diff --git a/lib/pleroma/gopher/server.ex b/lib/pleroma/gopher/server.ex
@@ -0,0 +1,142 @@
+defmodule Pleroma.Gopher.Server do
+ use GenServer
+ require Logger
+ @gopher Application.get_env(:pleroma, :gopher)
+
+ def start_link() do
+ ip = Keyword.get(@gopher, :ip, {0, 0, 0, 0})
+ port = Keyword.get(@gopher, :port, 1234)
+ GenServer.start_link(__MODULE__, [ip, port], [])
+ end
+
+ def init([ip, port]) do
+ if Keyword.get(@gopher, :enabled, false) do
+ Logger.info("Starting gopher server on #{port}")
+
+ :ranch.start_listener(
+ :gopher,
+ 100,
+ :ranch_tcp,
+ [port: port],
+ __MODULE__.ProtocolHandler,
+ []
+ )
+
+ {:ok, %{ip: ip, port: port}}
+ else
+ Logger.info("Gopher server disabled")
+ {:ok, nil}
+ end
+ end
+end
+
+defmodule Pleroma.Gopher.Server.ProtocolHandler do
+ alias Pleroma.Web.ActivityPub.ActivityPub
+ alias Pleroma.User
+ alias Pleroma.Activity
+ alias Pleroma.Repo
+
+ @instance Application.get_env(:pleroma, :instance)
+ @gopher Application.get_env(:pleroma, :gopher)
+
+ 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}\tfake\(NULL)\t0\r\n"
+ end
+
+ def link(name, selector, type \\ 1) do
+ address = Pleroma.Web.Endpoint.host()
+ port = Keyword.get(@gopher, :port, 1234)
+ "#{type}#{name}\t#{selector}\t#{address}\t#{port}\r\n"
+ end
+
+ def response("") do
+ info("Welcome to #{Keyword.get(@instance, :name, "Pleroma")}!") <>
+ link("Public Timeline", "/main/public") <>
+ link("Federated Timeline", "/main/all") <> ".\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"])
+
+ link("Post ##{activity.id} by #{user.nickname}", "/notices/#{activity.id}") <>
+ info(HtmlSanitizeEx.strip_tags(activity.data["object"]["content"]))
+ end)
+ |> Enum.join("\r\n")
+ end
+
+ def response("/main/public") do
+ posts =
+ ActivityPub.fetch_public_activities(%{"type" => ["Create"], "local_only" => true})
+ |> render_activities
+
+ info("Welcome to the Public Timeline!") <> posts <> ".\r\n"
+ end
+
+ def response("/main/all") do
+ posts =
+ ActivityPub.fetch_public_activities(%{"type" => ["Create"]})
+ |> render_activities
+
+ info("Welcome to the Federated Timeline!") <> posts <> ".\r\n"
+ end
+
+ def response("/notices/" <> id) do
+ with %Activity{} = activity <- Repo.get(Activity, id),
+ true <- ActivityPub.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 =
+ ActivityPub.fetch_public_activities(params)
+ |> 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
