+# 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
+ def call(conn, _options) do
if Config.get([:http_security, :enabled]) do
- conn =
- merge_resp_headers(conn, headers())
- |> maybe_send_sts_header(Config.get([:http_security, :sts]))
+ conn
+ |> merge_resp_headers(headers())
+ |> maybe_send_sts_header(Config.get([:http_security, :sts]))
else
conn
end
defp headers do
referrer_policy = Config.get([:http_security, :referrer_policy])
+ report_uri = Config.get([:http_security, :report_uri])
- [
+ headers = [
{"x-xss-protection", "1; mode=block"},
{"x-permitted-cross-domain-policies", "none"},
{"x-frame-options", "DENY"},
{"x-download-options", "noopen"},
{"content-security-policy", csp_string() <> ";"}
]
+
+ if report_uri do
+ report_group = %{
+ "group" => "csp-endpoint",
+ "max-age" => 10_886_400,
+ "endpoints" => [
+ %{"url" => report_uri}
+ ]
+ }
+
+ headers ++ [{"reply-to", Jason.encode!(report_group)}]
+ else
+ headers
+ end
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()
+ report_uri = Config.get([:http_security, :report_uri])
+
+ connect_src = "connect-src 'self' #{static_url} #{websocket_url}"
+
+ connect_src =
+ if Pleroma.Config.get(:env) == :dev do
+ connect_src <> " http://localhost:3035/"
+ else
+ connect_src
+ end
+
+ script_src =
+ if Pleroma.Config.get(:env) == :dev do
+ "script-src 'self' 'unsafe-eval'"
+ else
+ "script-src 'self'"
+ end
+
+ main_part = [
"default-src 'none'",
"base-uri 'self'",
"frame-ancestors 'none'",
"media-src 'self' https:",
"style-src 'self' 'unsafe-inline'",
"font-src 'self'",
- "script-src 'self'",
- "connect-src 'self' " <> String.replace(Pleroma.Web.Endpoint.static_url(), "http", "ws"),
- "upgrade-insecure-requests"
+ "manifest-src 'self'",
+ connect_src,
+ script_src
]
+
+ report = if report_uri, do: ["report-uri #{report_uri}; report-to csp-endpoint"], else: []
+
+ insecure = if scheme == "https", do: ["upgrade-insecure-requests"], else: []
+
+ (main_part ++ report ++ insecure)
|> Enum.join("; ")
end