Mercurial > prosody-modules

annotate mod_srvinjection/mod_srvinjection.lua @ 4738:5aee8d86629a

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mod_bookmarks2: Fix handling of nick and password elements This form of child retrieval fails when the stanza elements internally don't have an 'xmlns' attribute, which can happen sometimes for some reason, including when they have been constructed via the stanza builder API. When that is the case then the explicit namespace arguemnt does not match the nil value of the internal attribute. Calling `:get_child()` without the namespace argument does the right thing here, with both nil and the parent namespace as valid values for the internal attribute.
author Kim Alvefur <zash@zash.se>
date Wed, 03 Nov 2021 21:11:55 +0100
parents 47fb4f36dacd
children
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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%.(.*)%.$");
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30 local mapping = map[host] or map["*"];
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31 if mapping then
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32 handler(mapping);
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33 return;
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34 end
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35 elseif qtype == "A" then
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36 if (qname == "localhost." or qname == "127.0.0.1.") then
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37 handler({{ a = "127.0.0.1" }});
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38 return;
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39 end
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40 local ip = qname:match("^(%d+.%d+.%d+.%d+).$");
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41 if ip then
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42 handler({{ a = ip }});
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43 return;
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44 end
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45 end
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46 return original_lookup(handler, qname, qtype, qclass);
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47 end
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49 function module.unload()
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50 adns.lookup = original_lookup;
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51 end