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annotate mod_extdisco/mod_extdisco.lua @ 5119:048e339706ba

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mod_rest: Remove manual reference expansion in schema This hack was originally added to reduce the number of definitions of common attributes (type, to, from etc) and payloads (e.g. delay). This predated pointers and references, and until now was needed because parsing picked out the correct stanza kind from the schema, which broke internal references. Removing this hack paves the way for allowing the schema to be configured or customized more easily.
author Kim Alvefur <zash@zash.se>
date Tue, 20 Dec 2022 21:48:28 +0100
parents 7811ba467525
children
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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_1 = "urn:xmpp:extdisco:1";
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6 local xmlns_extdisco_2 = "urn:xmpp:extdisco:2";
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8 module:add_feature(xmlns_extdisco_1);
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9 module:add_feature(xmlns_extdisco_2);
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11 local function handle_services(event)
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12 local origin, stanza = event.origin, event.stanza;
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13 local service = stanza.tags[1];
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14 local service_type = service.attr.type;
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15 local reply = st.reply(stanza):tag("services", { xmlns = service.attr.xmlns });
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16 for host, service_info in pairs(services) do
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17 if not(service_type) or service_info.type == service_type then
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18 reply:tag("service", {
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19 host = host;
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20 port = service_info.port;
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21 transport = service_info.transport;
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22 type = service_info.type;
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23 username = service_info.username;
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24 password = service_info.password;
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25 }):up();
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26 end
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27 end
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28 origin.send(reply);
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29 return true;
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30 end
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31 module:hook("iq-get/host/"..xmlns_extdisco_1..":services", handle_services);
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32 module:hook("iq-get/host/"..xmlns_extdisco_2..":services", handle_services);
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34 local function handle_credentials(event)
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35 local origin, stanza = event.origin, event.stanza;
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36 local credentials = stanza.tags[1];
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37 local host = credentials.attr.host;
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38 if not host then
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39 origin.send(st.error_reply(stanza, "cancel", "bad-request", "No host specified"));
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40 return true;
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41 end
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42 local service_info = services[host];
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43 if not service_info then
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44 origin.send(st.error_reply(stanza, "cancel", "item-not-found", "No such service known"));
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45 return true;
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46 end
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47 local reply = st.reply(stanza)
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48 :tag("credentials", { xmlns = credentials.attr.xmlns })
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49 :tag("service", {
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50 host = host;
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51 username = service_info.username;
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52 password = service_info.password;
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53 }):up();
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54 origin.send(reply);
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55 return true;
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56 end
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57 module:hook("iq-get/host/"..xmlns_extdisco_1..":credentials", handle_credentials);
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58 module:hook("iq-get/host/"..xmlns_extdisco_2..":credentials", handle_credentials);