Mercurial > prosody-modules

annotate mod_s2soutinjection/mod_s2soutinjection.lua @ 5401:c8d04ac200fc

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mod_http_oauth2: Reject loopback URIs as client_uri This really should be a proper website with info, https://localhost is not good enough. Ideally we'd validate that it's got proper DNS and is actually reachable, but triggering HTTP or even DNS lookups seems like it would carry abuse potential that would best to avoid.
author Kim Alvefur <zash@zash.se>
date Tue, 02 May 2023 16:20:55 +0200
parents 4fb922aa0ace
children
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1 local st = require"util.stanza";
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2 local new_outgoing = require"core.s2smanager".new_outgoing;
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3 local bounce_sendq = module:depends"s2s".route_to_new_session.bounce_sendq;
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4 local initialize_filters = require "util.filters".initialize;
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5
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6 local portmanager = require "core.portmanager";
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7
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8 local addclient = require "net.server".addclient;
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10 module:depends("s2s");
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12 local sessions = module:shared("sessions");
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14 local injected = module:get_option("s2s_connect_overrides");
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15
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16 -- The proxy_listener handles connection while still connecting to the proxy,
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17 -- then it hands them over to the normal listener (in mod_s2s)
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18 local proxy_listener = { default_port = nil, default_mode = "*a", default_interface = "*" };
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20 function proxy_listener.onconnect(conn)
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21 local session = sessions[conn];
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23 -- Now the real s2s listener can take over the connection.
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24 local listener = portmanager.get_service("s2s").listener;
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25
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26 local log = session.log;
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28 local filter = initialize_filters(session);
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29
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30 session.version = 1;
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32 session.sends2s = function (t)
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33 log("debug", "sending (s2s over proxy): %s", (t.top_tag and t:top_tag()) or t:match("^[^>]*>?"));
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34 if t.name then
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35 t = filter("stanzas/out", t);
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36 end
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37 if t then
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38 t = filter("bytes/out", tostring(t));
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39 if t then
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40 return conn:write(tostring(t));
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41 end
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42 end
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43 end
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44
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45 session.open_stream = function ()
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46 session.sends2s(st.stanza("stream:stream", {
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47 xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback',
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48 ["xmlns:stream"]='http://etherx.jabber.org/streams',
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49 from=session.from_host, to=session.to_host, version='1.0', ["xml:lang"]='en'}):top_tag());
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50 end
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51
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52 conn.setlistener(conn, listener);
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53
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54 listener.register_outgoing(conn, session);
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55
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56 listener.onconnect(conn);
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57 end
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58
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59 function proxy_listener.register_outgoing(conn, session)
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60 session.direction = "outgoing";
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61 sessions[conn] = session;
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62 end
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63
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64 function proxy_listener.ondisconnect(conn, err)
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65 sessions[conn] = nil;
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66 end
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67
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68 module:hook("route/remote", function(event)
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69 local from_host, to_host, stanza = event.from_host, event.to_host, event.stanza;
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70 local inject = injected and injected[to_host];
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71 if not inject then return end
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72 module:log("debug", "opening a new outgoing connection for this stanza");
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73 local host_session = new_outgoing(from_host, to_host);
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74
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75 -- Store in buffer
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76 host_session.bounce_sendq = bounce_sendq;
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77 host_session.sendq = { {tostring(stanza), stanza.attr.type ~= "error" and stanza.attr.type ~= "result" and st.reply(stanza)} };
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78 host_session.log("debug", "stanza [%s] queued until connection complete", tostring(stanza.name));
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79
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80 local host, port = inject[1] or inject, tonumber(inject[2]) or 5269;
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81
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82 local conn = addclient(host, port, proxy_listener, "*a");
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83
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84 proxy_listener.register_outgoing(conn, host_session);
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85
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86 host_session.conn = conn;
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87 return true;
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88 end, -2);