Instance/Static runtime plug

This allows to set-up an arbitrary directory which overrides most of the
static files: index.html static/ emoji/ packs/ sounds/ images/ instance/
favicon.png.

If the files are not present in the directory, the bundled ones in
priv/static will be used.
This commit is contained in:
href 2018-12-17 22:50:59 +01:00
parent 3879500c87
commit b1860fe85a
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7 changed files with 107 additions and 3 deletions

4
.gitignore vendored
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@ -8,7 +8,9 @@
/.elixir_ls
/test/fixtures/test_tmp.txt
/test/fixtures/image_tmp.jpg
/test/tmp/
/doc
/instance
# Prevent committing custom emojis
/priv/static/emoji/custom/*
@ -31,4 +33,4 @@ erl_crash.dump
.env
# Editor config
/.vscode
/.vscode/

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@ -110,6 +110,7 @@
public: true,
quarantined_instances: [],
managed_config: true,
static_dir: "instance/static/",
allowed_post_formats: [
"text/plain",
"text/html",

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@ -0,0 +1,54 @@
defmodule Pleroma.Plugs.InstanceStatic do
@moduledoc """
This is a shim to call `Plug.Static` but with runtime `from` configuration.
Mountpoints are defined directly in the module to avoid calling the configuration for every request including non-static ones.
"""
@behaviour Plug
def file_path(path) do
instance_path =
Path.join(Pleroma.Config.get([:instance, :static_dir], "instance/static/"), path)
if File.exists?(instance_path) do
instance_path
else
Path.join(Application.app_dir(:pleroma, "priv/static/"), path)
end
end
@only ~w(index.html static emoji packs sounds images instance favicon.png)
def init(opts) do
opts
|> Keyword.put(:from, "__unconfigured_instance_static_plug")
|> Keyword.put(:at, "/__unconfigured_instance_static_plug")
|> Plug.Static.init()
end
for only <- @only do
at = Plug.Router.Utils.split("/")
def call(conn = %{request_path: "/" <> unquote(only) <> _}, opts) do
call_static(
conn,
opts,
unquote(at),
Pleroma.Config.get([:instance, :static_dir], "instance/static")
)
end
end
def call(conn, _) do
conn
end
defp call_static(conn, opts, at, from) do
opts =
opts
|> Map.put(:from, from)
|> Map.put(:at, at)
Plug.Static.call(conn, opts)
end
end

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@ -12,6 +12,10 @@ defmodule Pleroma.Web.Endpoint do
plug(Pleroma.Plugs.UploadedMedia)
# InstanceStatic needs to be before Plug.Static to be able to override shipped-static files
# If you're adding new paths to `only:` you'll need to configure them in InstanceStatic as well
plug(Pleroma.Plugs.InstanceStatic, at: "/")
plug(
Plug.Static,
at: "/",

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@ -136,7 +136,7 @@ def notice(conn, %{"id" => id}) do
"html" ->
conn
|> put_resp_content_type("text/html")
|> send_file(200, Application.app_dir(:pleroma, "priv/static/index.html"))
|> send_file(200, Pleroma.Plugs.InstanceStatic.file_path("index.html"))
_ ->
represent_activity(conn, format, activity, user)

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@ -459,7 +459,7 @@ defmodule Fallback.RedirectController do
def redirector(conn, _params) do
conn
|> put_resp_content_type("text/html")
|> send_file(200, Application.app_dir(:pleroma, "priv/static/index.html"))
|> send_file(200, Pleroma.Plugs.InstanceStatic.file_path("index.html"))
end
def registration_page(conn, params) do

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@ -0,0 +1,43 @@
defmodule Pleroma.Web.RuntimeStaticPlugTest do
use Pleroma.Web.ConnCase
@dir "test/tmp/instance_static"
setup do
static_dir = Pleroma.Config.get([:instance, :static_dir])
Pleroma.Config.put([:instance, :static_dir], @dir)
File.mkdir_p!(@dir)
on_exit(fn ->
Pleroma.Config.put([:instance, :static_dir], static_dir)
File.rm_rf(@dir)
end)
end
test "overrides index" do
bundled_index = get(build_conn(), "/")
assert html_response(bundled_index, 200) == File.read!("priv/static/index.html")
File.write!(@dir <> "/index.html", "hello world")
index = get(build_conn(), "/")
assert html_response(index, 200) == "hello world"
end
test "overrides any file in static/static" do
bundled_index = get(build_conn(), "/static/terms-of-service.html")
assert html_response(bundled_index, 200) ==
File.read!("priv/static/static/terms-of-service.html")
File.mkdir!(@dir <> "/static")
File.write!(@dir <> "/static/terms-of-service.html", "plz be kind")
index = get(build_conn(), "/static/terms-of-service.html")
assert html_response(index, 200) == "plz be kind"
File.write!(@dir <> "/static/kaniini.html", "<h1>rabbit hugs as a service</h1>")
index = get(build_conn(), "/static/kaniini.html")
assert html_response(index, 200) == "<h1>rabbit hugs as a service</h1>"
end
end