Mercurial > prosody-modules
annotate mod_turncredentials/mod_turncredentials.lua @ 5450:d2594bbf7c36
mod_http_oauth2: Scope FIXMEs
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 11 May 2023 21:43:23 +0200 |
parents | bbfcd786cc78 |
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mod_turncredentials: XEP-0215 implementation for time-limited turn credentials
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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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3 -- This file is MIT/X11 licensed. |
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4 |
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5 local st = require "util.stanza"; |
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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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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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18 |
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19 module:add_feature("urn:xmpp:extdisco:1"); |
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20 |
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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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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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35 |
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36 module:add_feature("urn:xmpp:extdisco:2"); |
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37 |
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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); |