--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_strict_https/mod_strict_https.lua Fri Nov 23 19:04:10 2012 +0100
@@ -0,0 +1,44 @@
+-- HTTP Strict Transport Security
+-- https://tools.ietf.org/html/rfc6797
+
+module:set_global();
+
+local http_server = require "net.http.server";
+
+local hsts_header = module:get_option_string("hsts_header", "max_age=31556952"); -- This means "Don't even try to access without HTTPS for a year"
+
+local _old_send_response;
+local _old_fire_event;
+
+local modules = {};
+
+function module.load()
+ _old_send_response = http_server.send_response;
+ function http_server.send_response(response, body)
+ response.headers.strict_transport_security = hsts_header;
+ return _old_send_response(response, body);
+ end
+
+ _old_fire_event = http_server._events.fire_event;
+ function http_server._events.fire_event(event, payload)
+ local request = payload.request;
+ local host = event:match("^[A-Z]+ ([^/]+)");
+ local module = modules[host];
+ if module and not request.secure then
+ payload.response.headers.location = module:http_url(request.path);
+ return 301;
+ end
+ return _old_fire_event(event, payload);
+ end
+end
+function module.unload()
+ http_server.send_response = _old_send_response;
+ http_server._events.fire_event = _old_fire_event;
+end
+function module.add_host(module)
+ local http_host = module:get_option_string("http_host", module.host);
+ modules[http_host] = module;
+ function module.unload()
+ modules[http_host] = nil;
+ end
+end