prosody-modules
3f3b672b7616
mod_s2s_keepalive/mod_s2s_keepalive.lua

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mod_s2s_keepalive/mod_s2s_keepalive.lua @ 4300:3f3b672b7616

mod_vcard_muc: Pass room object around instead of JID, hopefully fixing traceback More efficient to pass the object around instead of using the JID and looking up the object when needed. It seems in some (undetermined) cases get_room_from_jid(room.jid) is nil.
author Matthew Wild <mwild1@gmail.com>
date Tue, 15 Dec 2020 10:49:11 +0000
parent 4293:edde5905744a
child 4628:15c4eabdcea0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 local st = require "util.stanza";
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2 local watchdog = require "util.watchdog";
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3 local dt = require "util.datetime";
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5 local keepalive_servers = module:get_option_set("keepalive_servers");
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6 local keepalive_interval = module:get_option_number("keepalive_interval", 60);
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7 local keepalive_timeout = module:get_option_number("keepalive_timeout", 593);
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9 local host = module.host;
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10 local s2sout = prosody.hosts[host].s2sout;
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12 local function send_pings()
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13 local ping_hosts = {};
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14
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15 for remote_domain, session in pairs(s2sout) do
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16 if session.type ~= "s2sout_unauthed"
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17 and (not(keepalive_servers) or keepalive_servers:contains(remote_domain)) then
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18 session.sends2s(st.iq({ to = remote_domain, type = "get", from = host, id = "keepalive:"..dt.datetime()})
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19 :tag("ping", { xmlns = "urn:xmpp:ping" })
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20 );
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21 end
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22 end
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24 for session in pairs(prosody.incoming_s2s) do
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25 if session.type ~= "s2sin_unauthed"
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26 and not session.notopen
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27 and session.to_host == host
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28 and (not(keepalive_servers) or keepalive_servers:contains(session.from_host)) then
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29 if not s2sout[session.from_host] then ping_hosts[session.from_host] = true; end
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30 session.sends2s " ";
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31 -- If the connection is dead, this should make it time out.
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32 end
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33 end
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34
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35 -- ping remotes we only have s2sin from
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36 for remote_domain in pairs(ping_hosts) do
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37 module:send(st.iq({ to = remote_domain, type = "get", from = host, id = "keepalive:"..dt.datetime() })
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38 :tag("ping", { xmlns = "urn:xmpp:ping" })
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39 );
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40 end
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41
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42 return keepalive_interval;
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43 end
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44
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45 module:hook("s2sin-established", function (event)
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46 local session = event.session;
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47 if session.watchdog_keepalive then return end -- in case mod_bidi fires this twice
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48 if keepalive_servers and not keepalive_servers:contains(session.from_host) then return end
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49 session.watchdog_keepalive = watchdog.new(keepalive_timeout, function ()
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50 session.log("info", "Keepalive ping timed out, closing connection");
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51 session:close("connection-timeout");
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52 end);
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53 end);
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54
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55 module:hook("s2sout-established", function (event)
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56 local session = event.session;
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57 if session.watchdog_keepalive then return end -- in case mod_bidi fires this twice
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58 if keepalive_servers and not keepalive_servers:contains(session.from_host) then return end
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59 session.watchdog_keepalive = watchdog.new(keepalive_timeout, function ()
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60 session.log("info", "Keepalive ping timed out, closing connection");
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61 session:close("connection-timeout");
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62 end);
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63 end);
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64
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65 module:hook("iq/host", function (event)
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66 local stanza = event.stanza;
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67 if stanza.attr.type ~= "result" and stanza.attr.type == "error" then
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68 return -- not a reply iq stanza
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69 end
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70 if not (stanza.attr.id and stanza.attr.id:sub(1, #"keepalive:") == "keepalive:") then
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71 return -- not a reply to this module
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72 end
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73
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74 local origin = event.origin;
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75 if origin.dummy then return end -- Probably a sendq bounce
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76 if origin.watchdog_keepalive then
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77 origin.log("debug", "Resetting keepalive watchdog")
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78 origin.watchdog_keepalive:reset();
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79 end
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80 if s2sout[origin.from_host] and s2sout[origin.from_host].watchdog_keepalive then
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81 s2sout[origin.from_host].watchdog_keepalive:reset();
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82 end
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83 return true;
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84 end);
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85
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86 module:add_timer(keepalive_interval, send_pings);