nickva commented on a change in pull request #3724:
URL: https://github.com/apache/couchdb/pull/3724#discussion_r701465849
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File path: src/chttpd/src/chttpd_util.erl
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@@ -60,3 +61,40 @@ get_chttpd_auth_config_integer(Key, Default) ->
get_chttpd_auth_config_boolean(Key, Default) ->
config:get_boolean("chttpd_auth", Key,
config:get_boolean("couch_httpd_auth", Key, Default)).
+
+
+maybe_add_csp_header(Component, OriginalHeaders, DefaultHeaderValue) ->
+ Enabled = config:get_boolean("csp", Component ++ "_enable", true),
+ couch_log:info("~n CSP for ~p: Enabled~p~n", [Component, Enabled]),
+ case Enabled of
+ true ->
+ HeaderValue = config:get("csp", Component ++ "_header_value",
DefaultHeaderValue),
+ % As per
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy#multiple_content_security_policies
+ % The top most CSP header defines the most open policy,
+ % subsequent CSP headers set by show/list functions can
+ % only further restrict the policy.
+ %
+ % Ours goes on top and we don’t have to worry about additional
+ % headers set by users.
+ couch_log:info("~n adding CSP for ~p: ~p~n", [Component,
HeaderValue]),
+ [{"Content-Security-Policy", HeaderValue} | OriginalHeaders];
+ false ->
+ % fallback for old config vars
Review comment:
Very minor nit :-) : Capitalize to match the style of the other comment
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