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annotate mod_http_altconnect/mod_http_altconnect.lua @ 1324:853a382c9bd6

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mod_turncredentials: Advertise the XEP-0215 feature (thanks Gryffus)
author Kim Alvefur <zash@zash.se>
date Fri, 28 Feb 2014 15:36:06 +0100
parents c84ff82658cb
children b21236b6b8d8
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c0957b904487 mod_http_altconnect: Refactor to have module/connection method lookup in a common place
Kim Alvefur <zash@zash.se>
parents: 1289
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1 -- mod_http_altconnect
c0957b904487 mod_http_altconnect: Refactor to have module/connection method lookup in a common place
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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 json = require"util.json";
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7 local st = require"util.stanza";
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8 local array = require"util.array";
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9 local it = require"util.iterators";
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11 local host_modules = hosts[module.host].modules;
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12
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13 local function get_supported()
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parents: 1323
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14 local uris = array(it.values(module:get_host_items("alt-conn-method")));
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15 if #uris == 0 then
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parents: 1323
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16 -- COMPAT for with before item array was added
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17 if host_modules["bosh"] then
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18 uris:push({ rel = "urn:xmpp:alt-connections:xbosh", href = module:http_url("bosh", "/http-bind") });
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19 end
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20 if host_modules["websocket"] then
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21 uris:push({ rel = "urn:xmpp:alt-connections:websocket", href = module:http_url("websocket", "xmpp-websocket"):gsub("^http", "ws") });
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22 end
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23 end
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24 return uris;
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25 end
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28 local function GET_xml(event)
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29 local request, response = event.request, event.response;
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30 local xrd = st.stanza("XRD", { xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0' });
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31 local uris = get_supported();
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32 for i, method in ipairs(uris) do
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33 xrd:tag("Link", method):up();
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34 end
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35 response.headers.content_type = "application/xrd+xml"
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36 response.headers.access_control_allow_origin = "*";
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1ac28a953e5f mod_http_altconnect: Send XML declaration
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37 return '<?xml version="1.0" encoding="UTF-8"?>' .. tostring(xrd);
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38 end
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39
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40 local function GET_json(event)
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41 local request, response = event.request, event.response;
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42 local jrd = { links = get_supported() };
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43 response.headers.content_type = "application/json"
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44 response.headers.access_control_allow_origin = "*";
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45 return json.encode(jrd);
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46 end;
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48 local function GET_either(event)
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49 local accept_type = event.request.headers.accept or "";
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50 if ( accept_type:find("xml") or #accept_type ) < ( accept_type:find("json") or #accept_type+1 ) then
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51 return GET_xml(event);
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52 else
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53 return GET_json(event);
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54 end
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55 end;
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57 module:provides("http", {
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58 default_path = "/.well-known";
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59 route = {
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60 ["GET /host-meta"] = GET_either;
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61 -- ["GET /host-meta.xml"] = GET_xml; -- Hmmm
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62 ["GET /host-meta.json"] = GET_json;
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63 };
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64 });