Mercurial > prosody-modules

annotate mod_s2soutinjection/mod_s2soutinjection.lua @ 4942:e7b9bc629ecc

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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
parents f4a9e804c457
children e55d1f7a570a
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1 local st = require"util.stanza";
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2 local new_ip = require"util.ip".new_ip;
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3 local new_outgoing = require"core.s2smanager".new_outgoing;
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4 local bounce_sendq = module:depends"s2s".route_to_new_session.bounce_sendq;
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5 local initialize_filters = require "util.filters".initialize;
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6 local st = require "util.stanza";
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8 local portmanager = require "core.portmanager";
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10 local addclient = require "net.server".addclient;
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12 module:depends("s2s");
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14 local sessions = module:shared("sessions");
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16 local injected = module:get_option("s2s_connect_overrides");
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18 -- The proxy_listener handles connection while still connecting to the proxy,
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19 -- then it hands them over to the normal listener (in mod_s2s)
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20 local proxy_listener = { default_port = port, default_mode = "*a", default_interface = "*" };
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22 function proxy_listener.onconnect(conn)
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23 local session = sessions[conn];
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25 -- Now the real s2s listener can take over the connection.
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26 local listener = portmanager.get_service("s2s").listener;
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28 local w, log = conn.send, session.log;
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30 local filter = initialize_filters(session);
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32 session.version = 1;
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34 session.sends2s = function (t)
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35 log("debug", "sending (s2s over proxy): %s", (t.top_tag and t:top_tag()) or t:match("^[^>]*>?"));
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36 if t.name then
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37 t = filter("stanzas/out", t);
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38 end
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39 if t then
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40 t = filter("bytes/out", tostring(t));
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41 if t then
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42 return conn:write(tostring(t));
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43 end
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44 end
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45 end
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47 session.open_stream = function ()
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48 session.sends2s(st.stanza("stream:stream", {
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49 xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback',
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50 ["xmlns:stream"]='http://etherx.jabber.org/streams',
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51 from=session.from_host, to=session.to_host, version='1.0', ["xml:lang"]='en'}):top_tag());
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52 end
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54 conn.setlistener(conn, listener);
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56 listener.register_outgoing(conn, session);
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58 listener.onconnect(conn);
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59 end
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61 function proxy_listener.register_outgoing(conn, session)
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62 session.direction = "outgoing";
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63 sessions[conn] = session;
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64 end
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65
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66 function proxy_listener.ondisconnect(conn, err)
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67 sessions[conn] = nil;
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68 end
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70 module:hook("route/remote", function(event)
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71 local from_host, to_host, stanza = event.from_host, event.to_host, event.stanza;
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72 local inject = injected and injected[to_host];
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73 if not inject then return end
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74 log("debug", "opening a new outgoing connection for this stanza");
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75 local host_session = new_outgoing(from_host, to_host);
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76
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77 -- Store in buffer
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78 host_session.bounce_sendq = bounce_sendq;
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79 host_session.sendq = { {tostring(stanza), stanza.attr.type ~= "error" and stanza.attr.type ~= "result" and st.reply(stanza)} };
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80 log("debug", "stanza [%s] queued until connection complete", tostring(stanza.name));
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81
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82 local host, port = inject[1] or inject, tonumber(inject[2]) or 5269;
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84 local conn = addclient(host, port, proxy_listener, "*a");
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86 proxy_listener.register_outgoing(conn, host_session);
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87
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88 host_session.conn = conn;
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89 return true;
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90 end, -2);