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annotate mod_extdisco/mod_extdisco.lua @ 3503:882180b459a0

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mod_pubsub_post: Restructure authentication and authorization (BC) This deprecates the default "superuser" actor model and makes the default equivalent to the previous "request.id". A single actor and secret per node is supported because HTTP and WebHooks don't normally include any authorization identity. Allowing authentication bypass when no secret is given should be relatively safe when the actor is unprivileged, as will be unless explicitly configured otherwise.
author Kim Alvefur <zash@zash.se>
date Sat, 30 Mar 2019 21:16:13 +0100
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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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);