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annotate mod_turncredentials/mod_turncredentials.lua @ 4976:75b6e5df65f9

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various: Improve error reporting if missing file server module on 0.12 If there is some error loading net.http.files then it would be swallowed by the pcall and then it would proceed to trying mod_http_files, which might cause unexpected behavior on 0.12 Ref #1765
author Kim Alvefur <zash@zash.se>
date Mon, 18 Jul 2022 22:47:54 +0200
parents bbfcd786cc78
children
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95ab35ef52ba mod_turncredentials: XEP-0215 implementation for time-limited turn credentials
Philipp Hancke <fippo@goodadvice.pages.de>
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1 -- XEP-0215 implementation for time-limited turn credentials
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2 -- Copyright (C) 2012-2013 Philipp Hancke
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Florian Zeitz <florob@babelmonkeys.de>
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3 -- This file is MIT/X11 licensed.
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5 local st = require "util.stanza";
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2da546139cb5 mod_turncredentials: Import HMAC from util.hashes
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6 local hmac_sha1 = require "util.hashes".hmac_sha1;
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7 local base64 = require "util.encodings".base64;
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8 local os_time = os.time;
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9 local datetime = require "util.datetime".datetime;
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0ae2c250f274 mod_turncredentials: Use type-specific get_option() methods where appropriate, and pass in default values
Matthew Wild <mwild1@gmail.com>
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10 local secret = module:get_option_string("turncredentials_secret");
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11 local host = module:get_option_string("turncredentials_host"); -- use ip addresses here to avoid further dns lookup latency
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12 local port = module:get_option_number("turncredentials_port", 3478);
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13 local ttl = module:get_option_number("turncredentials_ttl", 86400);
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14 if not (secret and host) then
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15 module:log("error", "turncredentials not configured");
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16 return;
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17 end
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afae347928d8 mod_turncredentials: Advertise the XEP-0215 feature (thanks Gryffus)
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19 module:add_feature("urn:xmpp:extdisco:1");
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6695c3098025 mod_turncredentials: Use iq-get event, to save checking attr.type manually
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21 module:hook("iq-get/host/urn:xmpp:extdisco:1:services", function(event)
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22 local origin, stanza = event.origin, event.stanza;
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a18effacd384 mod_turncredentials: No need to check tag name, we're already in the event handler for the 'services' tag
Matthew Wild <mwild1@gmail.com>
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23 if origin.type ~= "c2s" then
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24 return;
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25 end
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26 local expires_at = os_time() + ttl;
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27 local userpart = tostring(expires_at);
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28 local nonce = base64.encode(hmac_sha1(secret, tostring(userpart), false));
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29 origin.send(st.reply(stanza):tag("services", {xmlns = "urn:xmpp:extdisco:1"})
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30 :tag("service", { type = "stun", host = host, port = ("%d"):format(port) }):up()
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31 :tag("service", { type = "turn", host = host, port = ("%d"):format(port), username = userpart, password = nonce, ttl = ("%d"):format(ttl) }):up()
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32 );
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33 return true;
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34 end);
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36 module:add_feature("urn:xmpp:extdisco:2");
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38 module:hook("iq-get/host/urn:xmpp:extdisco:2:services", function(event)
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39 local origin, stanza = event.origin, event.stanza;
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40 if origin.type ~= "c2s" then
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41 return;
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42 end
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43 local expires_at = os_time() + ttl;
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44 local userpart = tostring(expires_at);
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45 local nonce = base64.encode(hmac_sha1(secret, tostring(userpart), false));
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46 origin.send(st.reply(stanza):tag("services", {xmlns = "urn:xmpp:extdisco:2"})
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47 :tag("service", { type = "stun", transport = "udp", host = host, port = ("%d"):format(port) }):up()
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48 :tag("service", { type = "stun", transport = "tcp", host = host, port = ("%d"):format(port) }):up()
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49 :tag("service", { type = "turn", transport = "udp", host = host, port = ("%d"):format(port), username = userpart, password = nonce, expires = datetime(expires_at), restricted = "1" }):up()
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50 :tag("service", { type = "turn", transport = "tcp", host = host, port = ("%d"):format(port), username = userpart, password = nonce, expires = datetime(expires_at), restricted = "1" }):up()
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51 );
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52 return true;
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53 end);