prosody-modules
604a8cee9d58
mod_srvinjection/mod_srvinjection.lua

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mod_srvinjection/mod_srvinjection.lua @ 1524:604a8cee9d58

Merge
author Kim Alvefur <zash@zash.se>
date Mon, 13 Oct 2014 14:31:16 +0200
parent 1325:b21236b6b8d8
child 1592:47fb4f36dacd
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2 module:set_global();
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4 local adns = require "net.adns";
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6 local map_config = module:get_option("srvinjection") or {};
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7 local map = module:shared "s2s_map"
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9 for host, mapping in pairs(map_config) do
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10 if type(mapping) == "table" and type(mapping[1]) == "string" and (type(mapping[2]) == "number") then
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11 local connecthost, connectport = mapping[1], mapping[2] or 5269;
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12 map[host] = {{
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13 srv = {
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14 target = connecthost..".";
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15 port = connectport;
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16 priority = 1;
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17 weight = 0;
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18 };
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19 }};
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20 else
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21 module:log("warn", "Ignoring invalid SRV injection for host '%s'", host);
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22 map[host] = nil;
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23 end
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24 end
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26 local original_lookup = adns.lookup;
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27 function adns.lookup(handler, qname, qtype, qclass)
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28 if qtype == "SRV" then
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29 local host = qname:match("^_xmpp%-server%._tcp%.(.*)%.$");
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30 local mapping = map[host] or map["*"];
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31 if mapping then
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32 handler(mapping);
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33 return;
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34 end
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35 elseif qtype == "A" and (qname == "localhost." or qname == "127.0.0.1.") then
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36 handler({{ a = "127.0.0.1" }});
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37 return;
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38 end
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39 return original_lookup(handler, qname, qtype, qclass);
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40 end
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42 function module.unload()
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43 adns.lookup = original_lookup;
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44 end