85 lines
2.2 KiB
Elixir
85 lines
2.2 KiB
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.Plugs.HTTPSecurityPlug do
|
|
alias Pleroma.Config
|
|
import Plug.Conn
|
|
|
|
def init(opts), do: opts
|
|
|
|
def call(conn, _options) do
|
|
if Config.get([:http_security, :enabled]) do
|
|
conn
|
|
|> merge_resp_headers(headers())
|
|
|> maybe_send_sts_header(Config.get([:http_security, :sts]))
|
|
else
|
|
conn
|
|
end
|
|
end
|
|
|
|
defp headers do
|
|
referrer_policy = Config.get([:http_security, :referrer_policy])
|
|
|
|
[
|
|
{"x-xss-protection", "1; mode=block"},
|
|
{"x-permitted-cross-domain-policies", "none"},
|
|
{"x-frame-options", "DENY"},
|
|
{"x-content-type-options", "nosniff"},
|
|
{"referrer-policy", referrer_policy},
|
|
{"x-download-options", "noopen"},
|
|
{"content-security-policy", csp_string() <> ";"}
|
|
]
|
|
end
|
|
|
|
defp csp_string do
|
|
scheme = Config.get([Pleroma.Web.Endpoint, :url])[:scheme]
|
|
static_url = Pleroma.Web.Endpoint.static_url()
|
|
websocket_url = Pleroma.Web.Endpoint.websocket_url()
|
|
|
|
connect_src = "connect-src 'self' #{static_url} #{websocket_url}"
|
|
|
|
connect_src =
|
|
if Mix.env() == :dev do
|
|
connect_src <> " http://localhost:3035/"
|
|
else
|
|
connect_src
|
|
end
|
|
|
|
script_src =
|
|
if Mix.env() == :dev do
|
|
"script-src 'self' 'unsafe-eval'"
|
|
else
|
|
"script-src 'self'"
|
|
end
|
|
|
|
[
|
|
"default-src 'none'",
|
|
"base-uri 'self'",
|
|
"frame-ancestors 'none'",
|
|
"img-src 'self' data: https:",
|
|
"media-src 'self' https:",
|
|
"style-src 'self' 'unsafe-inline'",
|
|
"font-src 'self'",
|
|
"manifest-src 'self'",
|
|
connect_src,
|
|
script_src,
|
|
if scheme == "https" do
|
|
"upgrade-insecure-requests"
|
|
end
|
|
]
|
|
|> Enum.join("; ")
|
|
end
|
|
|
|
defp maybe_send_sts_header(conn, true) do
|
|
max_age_sts = Config.get([:http_security, :sts_max_age])
|
|
max_age_ct = Config.get([:http_security, :ct_max_age])
|
|
|
|
merge_resp_headers(conn, [
|
|
{"strict-transport-security", "max-age=#{max_age_sts}; includeSubDomains"},
|
|
{"expect-ct", "enforce, max-age=#{max_age_ct}"}
|
|
])
|
|
end
|
|
|
|
defp maybe_send_sts_header(conn, _), do: conn
|
|
end
|