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# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Fallback.RedirectController do
use Pleroma.Web, :controller
require Logger
alias Pleroma.User
alias Pleroma.Web.Metadata
alias Pleroma.Web.Preload
def api_not_implemented(conn, _params) do
conn
|> put_status(404)
|> json(%{error: "Not implemented"})
end
def redirector(conn, _params, code \\ 200) do
conn
|> put_resp_content_type("text/html")
|> send_file(code, index_file_path())
end
def redirector_with_meta(conn, %{"maybe_nickname_or_id" => maybe_nickname_or_id} = params) do
with %User{} = user <- User.get_cached_by_nickname_or_id(maybe_nickname_or_id) do
redirector_with_meta(conn, %{user: user})
else
nil ->
redirector(conn, params)
end
end
def redirector_with_meta(conn, params) do
{:ok, index_content} = File.read(index_file_path())
tags = build_tags(conn, params)
preloads = preload_data(conn, params)
response =
index_content
|> String.replace("<!--server-generated-meta-->", tags <> preloads)
conn
|> put_resp_content_type("text/html")
|> send_resp(200, response)
end
def redirector_with_preload(conn, %{"path" => ["pleroma", "admin"]}) do
redirect(conn, to: "/pleroma/admin/")
end
def redirector_with_preload(conn, params) do
{:ok, index_content} = File.read(index_file_path())
preloads = preload_data(conn, params)
response =
index_content
|> String.replace("<!--server-generated-meta-->", preloads)
conn
|> put_resp_content_type("text/html")
|> send_resp(200, response)
end
def registration_page(conn, params) do
redirector(conn, params)
end
def empty(conn, _params) do
conn
|> put_status(204)
|> text("")
end
defp index_file_path do
Pleroma.Plugs.InstanceStatic.file_path("index.html")
end
defp build_tags(conn, params) do
try do
Metadata.build_tags(params)
rescue
e ->
Logger.error(
"Metadata rendering for #{conn.request_path} failed.\n" <>
Exception.format(:error, e, __STACKTRACE__)
)
""
end
end
defp preload_data(conn, params) do
try do
Preload.build_tags(conn, params)
rescue
e ->
Logger.error(
"Preloading for #{conn.request_path} failed.\n" <>
Exception.format(:error, e, __STACKTRACE__)
)
""
end
end
end
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