Changeset

12790:24b55f0e2db9 0.12

mod_http: Allow disabling CORS in the http_cors_override option and by default Fixes #1779. Due to an oversight in the logic, if the user set 'enabled' to false in an override, it would disable the item's requested CORS settings, but still apply Prosody's default CORS policy. This change ensures that 'enabled = false' will now disable CORS entirely for the requested item. Due to the new structure of the code, it was necessary to have a flag to say whether CORS is to be applied at all. Rather than hard-coding 'true' here, I chose to add a new option: 'http_default_cors_enabled'. This is a boolean that allows the operator to disable Prosody's default CORS policy entirely (the one that is used when a module or config does not override it). This makes it easier to disable CORS and then selectively enable it only on services you want it on.
author Matthew Wild <mwild1@gmail.com>
date Mon, 31 Oct 2022 14:32:02 +0000
parents 12788:3835c397b129
children 12791:4f69423603f2 12792:997f3ca90628
files plugins/mod_http.lua
diffstat 1 files changed, 11 insertions(+), 4 deletions(-) [+]
line wrap: on
line diff
--- a/plugins/mod_http.lua	Sun Oct 23 16:22:12 2022 +0200
+++ b/plugins/mod_http.lua	Mon Oct 31 14:32:02 2022 +0000
@@ -37,6 +37,7 @@
 local opt_origins = module:get_option_set("access_control_allow_origins");
 local opt_credentials = module:get_option_boolean("access_control_allow_credentials", false);
 local opt_max_age = module:get_option_number("access_control_max_age", 2 * 60 * 60);
+local opt_default_cors = module:get_option_boolean("http_default_cors_enabled", true);
 
 local function get_http_event(host, app_path, key)
 	local method, path = key:match("^(%S+)%s+(.+)$");
@@ -183,7 +184,11 @@
 						app_origins = set.new(cors.origins)._items;
 					end
 				end
+			elseif cors.enabled == false then
+				cors = nil;
 			end
+		else
+			cors = opt_default_cors;
 		end
 
 		local streaming = event.item.streaming_uploads;
@@ -228,12 +233,14 @@
 				if not app_handlers[event_name] then
 					app_handlers[event_name] = {
 						main = handler;
-						cors = cors_handler;
-						options = options_handler;
+						cors = cors and cors_handler;
+						options = cors and options_handler;
 					};
 					module:hook_object_event(server, event_name, handler);
-					module:hook_object_event(server, event_name, cors_handler, 1);
-					module:hook_object_event(server, options_event_name, options_handler, -1);
+					if cors then
+						module:hook_object_event(server, event_name, cors_handler, 1);
+						module:hook_object_event(server, options_event_name, options_handler, -1);
+					end
 				else
 					module:log("warn", "App %s added handler twice for '%s', ignoring", app_name, event_name);
 				end