prosody-modules
e7b9bc629ecc
mod_http_altconnect/mod_http_altconnect.lua

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mod_http_altconnect/mod_http_altconnect.lua @ 4941:e7b9bc629ecc

mod_rest: Add special handling to catch MAM results from remote hosts Makes MAM queries to remote hosts works. As the comment says, MAM results from users' local archives or local MUCs are returned via origin.send() which is provided in the event and thus already worked. Results from remote hosts go via normal stanza routing and events, which need this extra handling to catch. This pattern of iq-set, message+, iq-result is generally limited to MAM. Closest similar thing might be MUC join, but to really handle that you would need the webhook callback mechanism.
author Kim Alvefur <zash@zash.se>
date Mon, 16 May 2022 19:47:09 +0200
parent 3712:0a0bf87ccda6
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rev   line source
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1 -- mod_http_altconnect
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2 -- XEP-0156: Discovering Alternative XMPP Connection Methods
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3
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4 module:depends"http";
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5
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6 local mm = require "core.modulemanager";
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7 local json = require"util.json";
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8 local st = require"util.stanza";
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9 local array = require"util.array";
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10
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11 local function get_supported()
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12 local uris = array();
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13 if mm.is_loaded(module.host, "bosh") or mm.is_loaded("*", "bosh") then
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14 uris:push({ rel = "urn:xmpp:alt-connections:xbosh", href = module:http_url("bosh", "/http-bind") });
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15 end
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16 if mm.is_loaded(module.host, "websocket") or mm.is_loaded("*", "websocket") then
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17 uris:push({ rel = "urn:xmpp:alt-connections:websocket", href = module:http_url("websocket", "xmpp-websocket"):gsub("^http", "ws") });
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18 end
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19 return uris;
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20 end
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23 local function GET_xml(event)
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24 local request, response = event.request, event.response;
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25 local xrd = st.stanza("XRD", { xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0' });
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26 local uris = get_supported();
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27 for i, method in ipairs(uris) do
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28 xrd:tag("Link", method):up();
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29 end
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30 response.headers.content_type = "application/xrd+xml"
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31 response.headers.access_control_allow_origin = "*";
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32 return '<?xml version="1.0" encoding="UTF-8"?>' .. tostring(xrd);
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33 end
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35 local function GET_json(event)
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36 local request, response = event.request, event.response;
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37 local jrd = { links = get_supported() };
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38 response.headers.content_type = "application/json"
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39 response.headers.access_control_allow_origin = "*";
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40 return json.encode(jrd);
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41 end;
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42
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43 local function GET_either(event)
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44 local accept_type = event.request.headers.accept or "";
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45 if ( accept_type:find("xml") or #accept_type ) < ( accept_type:find("json") or #accept_type+1 ) then
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46 return GET_xml(event);
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47 else
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48 return GET_json(event);
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49 end
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50 end;
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52 module:provides("http", {
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53 default_path = "/.well-known";
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54 route = {
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55 ["GET /host-meta"] = GET_either;
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56 -- ["GET /host-meta.xml"] = GET_xml; -- Hmmm
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57 ["GET /host-meta.json"] = GET_json;
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58 };
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59 });