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annotate mod_extdisco/mod_extdisco.lua @ 3349:35dc7c38e362

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mod_muc_ping: Implements the Server Optimization part of XEP-0410: MUC Self-Ping Also see #1220
author Kim Alvefur <zash@zash.se>
date Sun, 07 Oct 2018 03:39:35 +0200
parents e5c16c87383c
children e302537a0e4e
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e5c16c87383c mod_extdisco: XEP-0215: External Service Discovery
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1 local st = require "util.stanza";
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2
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3 local services = module:get_option("external_services");
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4
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5 local xmlns_extdisco = "urn:xmpp:extdisco:1";
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6
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7 module:add_feature(xmlns_extdisco);
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8
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9 module:hook("iq-get/host/"..xmlns_extdisco..":services", function (event)
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10 local origin, stanza = event.origin, event.stanza;
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11 local service = stanza:get_child("service", xmlns_extdisco);
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12 local service_type = service and service.attr.type;
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13 local reply = st.reply(stanza);
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14 for host, service_info in pairs(services) do
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15 if not(service_type) or service_info.type == service_type then
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16 reply:tag("service", {
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17 host = host;
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18 port = service_info.port;
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19 transport = service_info.transport;
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20 type = service_info.type;
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21 username = service_info.username;
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22 password = service_info.password;
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23 }):up();
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24 end
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25 end
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26 origin.send(reply);
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27 return true;
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28 end);
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29
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30 module:hook("iq-get/host/"..xmlns_extdisco..":credentials", function (event)
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31 local origin, stanza = event.origin, event.stanza;
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32 local credentials = stanza:get_child("credentials", xmlns_extdisco);
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33 local host = credentials and credentials.attr.host;
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34 if not host then
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35 origin.send(st.error_reply(stanza, "cancel", "bad-request", "No host specified"));
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36 return true;
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37 end
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38 local service_info = services[host];
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39 if not service_info then
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40 origin.send(st.error_reply(stanza, "cancel", "item-not-found", "No such service known"));
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41 return true;
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42 end
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43 local reply = st.reply(stanza)
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44 :tag("credentials")
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45 :tag("service", {
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46 host = host;
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47 username = service_info.username;
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48 password = service_info.password;
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49 }):up();
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50 origin.send(reply);
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51 return true;
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52 end);