prosody-modules
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mod_strict_https/mod_strict_https.lua

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mod_strict_https/mod_strict_https.lua @ 4877:adc6241e5d16

mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parent 863:efa9c1676d1f
child 5411:b3158647cb36
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1b34c8e46ffb mod_strict_https: New module implementing HTTP Strict Transport Security
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1 -- HTTP Strict Transport Security
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2 -- https://tools.ietf.org/html/rfc6797
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3
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4 module:set_global();
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5
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6 local http_server = require "net.http.server";
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7
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8 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"
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9
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10 local _old_send_response;
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11 local _old_fire_event;
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12
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13 local modules = {};
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14
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15 function module.load()
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16 _old_send_response = http_server.send_response;
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17 function http_server.send_response(response, body)
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18 response.headers.strict_transport_security = hsts_header;
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19 return _old_send_response(response, body);
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20 end
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21
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22 _old_fire_event = http_server._events.fire_event;
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23 function http_server._events.fire_event(event, payload)
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24 local request = payload.request;
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25 local host = event:match("^[A-Z]+ ([^/]+)");
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26 local module = modules[host];
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27 if module and not request.secure then
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28 payload.response.headers.location = module:http_url(request.path);
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29 return 301;
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30 end
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31 return _old_fire_event(event, payload);
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32 end
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33 end
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34 function module.unload()
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35 http_server.send_response = _old_send_response;
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36 http_server._events.fire_event = _old_fire_event;
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37 end
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38 function module.add_host(module)
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39 local http_host = module:get_option_string("http_host", module.host);
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40 modules[http_host] = module;
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41 function module.unload()
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42 modules[http_host] = nil;
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43 end
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44 end