# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Plugs.HTTPSecurityPlug do
alias Pleroma.Config
import Plug.Conn
+ require Logger
+
def init(opts), do: opts
def call(conn, _options) do
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
- protocol = Config.get([Pleroma.Web.Endpoint, :protocol])
+ 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'",
- "img-src 'self' data: https:",
+ "img-src 'self' data: blob: https:",
"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"),
"manifest-src 'self'",
- if protocol == "https" do
- "upgrade-insecure-requests"
- end
+ 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
+ def warn_if_disabled do
+ unless Config.get([:http_security, :enabled]) do
+ Logger.warn("
+ .i;;;;i.
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+ vY. .. .nMMM@MMU. ;1v.
+ i7i ... .#MM@M@C. .....:71i
+ it: .... $MMM@9;.,i;;;i,;tti
+ :t7. ..... 0MMMWv.,iii:::,,;St.
+ .nC. ..... IMMMQ..,::::::,.,czX.
+ .ct: ....... .ZMMMI..,:::::::,,:76Y.
+ c2: ......,i..Y$M@t..:::::::,,..inZY
+ vov ......:ii..c$MBc..,,,,,,,,,,..iI9i
+ i9Y ......iii:..7@MA,..,,,,,,,,,....;AA:
+ iIS. ......:ii::..;@MI....,............;Ez.
+ .I9. ......:i::::...8M1..................C0z.
+ .z9; ......:i::::,.. .i:...................zWX.
+ vbv ......,i::::,,. ................. :AQY
+ c6Y. .,...,::::,,..:t0@@QY. ................ :8bi
+ :6S. ..,,...,:::,,,..EMMMMMMI. ............... .;bZ,
+ :6o, .,,,,..:::,,,..i#MMMMMM#v................. YW2.
+ .n8i ..,,,,,,,::,,,,.. tMMMMM@C:.................. .1Wn
+ 7Uc. .:::,,,,,::,,,,.. i1t;,..................... .UEi
+ 7C...::::::::::::,,,,.. .................... vSi.
+ ;1;...,,::::::,......... .................. Yz:
+ v97,......... .voC.
+ izAotX7777777777777777777777777777777777777777Y7n92:
+ .;CoIIIIIUAA666666699999ZZZZZZZZZZZZZZZZZZZZ6ov.
+
+HTTP Security is disabled. Please re-enable it to prevent users from attacking
+your instance and your users via malicious posts:
+
+ config :pleroma, :http_security, enabled: true
+ ")
+ end
+ 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])