def call(conn, _options) do
if Config.get([:http_security, :enabled]) do
conn
- |> merge_resp_headers(headers())
+ |> merge_resp_headers(headers(conn))
|> maybe_send_sts_header(Config.get([:http_security, :sts]))
else
conn
end
end
- def headers do
+ @spec headers(Plug.Conn.t()) :: [{String.t(), String.t()}]
+ def headers(conn) do
referrer_policy = Config.get([:http_security, :referrer_policy])
report_uri = Config.get([:http_security, :report_uri])
custom_http_frontend_headers = custom_http_frontend_headers()
headers = [
- {"x-xss-protection", "1; mode=block"},
+ {"x-xss-protection", "0"},
{"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()},
+ {"content-security-policy", csp_string(conn)},
{"permissions-policy", "interest-cohort=()"}
]
]
}
- [{"reply-to", Jason.encode!(report_group)} | headers]
+ [{"report-to", Jason.encode!(report_group)} | headers]
else
headers
end
static_csp_rules = [
"default-src 'none'",
- "base-uri 'self'",
+ "base-uri 'none'",
"frame-ancestors 'none'",
- "style-src 'self' 'unsafe-inline'",
- "font-src 'self'",
"manifest-src 'self'"
]
@csp_start [Enum.join(static_csp_rules, ";") <> ";"]
- defp csp_string do
+ defp csp_string(conn) 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])
-
+ %{assigns: %{csp_nonce: nonce}} = conn
+ nonce_tag = "nonce-" <> nonce
img_src = "img-src 'self' data: blob:"
media_src = "media-src 'self'"
{[img_src, " https:"], [media_src, " https:"]}
end
- connect_src = ["connect-src 'self' blob: ", static_url, ?\s, websocket_url]
-
connect_src =
- if Config.get(:env) == :dev do
- [connect_src, " http://localhost:3035/"]
+ if Config.get([:media_proxy, :enabled]) do
+ sources = build_csp_multimedia_source_list()
+ ["connect-src 'self' ", static_url, ?\s, websocket_url, ?\s, sources]
else
- connect_src
+ ["connect-src 'self' ", static_url, ?\s, websocket_url]
end
- script_src =
- if Config.get(:env) == :dev do
- "script-src 'self' 'unsafe-eval'"
- else
- "script-src 'self'"
- end
+ style_src = "style-src 'self' '#{nonce_tag}'"
+ font_src = "font-src 'self'"
+
+ script_src = "script-src 'self' '#{nonce_tag}'"
+
+ script_src = if Mix.env() == :dev, do: [script_src, " 'unsafe-eval'"], else: script_src
report = if report_uri, do: ["report-uri ", report_uri, ";report-to csp-endpoint"]
insecure = if scheme == "https", do: "upgrade-insecure-requests"
|> add_csp_param(media_src)
|> add_csp_param(connect_src)
|> add_csp_param(script_src)
+ |> add_csp_param(font_src)
+ |> add_csp_param(style_src)
|> add_csp_param(insecure)
|> add_csp_param(report)
|> :erlang.iolist_to_binary()
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}"}
+ {"strict-transport-security", "max-age=#{max_age_sts}; includeSubDomains; preload"}
])
end