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annotate plugins/mod_csi.lua @ 12480:7e9ebdc75ce4

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net: isolate LuaSec-specifics For this, various accessor functions are now provided directly on the sockets, which reach down into the LuaSec implementation to obtain the information. While this may seem of little gain at first, it hides the implementation detail of the LuaSec+LuaSocket combination that the actual socket and the TLS layer are separate objects. The net gain here is that an alternative implementation does not have to emulate that specific implementation detail and "only" has to expose LuaSec-compatible data structures on the new functions.
author Jonas Schäfer <jonas@wielicki.name>
date Wed, 27 Apr 2022 17:44:14 +0200
parents 0b04d25c4ffb
children 74b9e05af71e
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1 local st = require "util.stanza";
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2 local xmlns_csi = "urn:xmpp:csi:0";
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3 local csi_feature = st.stanza("csi", { xmlns = xmlns_csi });
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4
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5 local csi_handler_available = nil;
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6 module:hook("stream-features", function (event)
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7 if event.origin.username and csi_handler_available then
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8 event.features:add_child(csi_feature);
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9 end
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10 end);
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11
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12 function refire_event(name)
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13 return function (event)
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14 if event.origin.username then
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15 event.origin.state = event.stanza.name;
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16 module:fire_event(name, event);
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17 return true;
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18 end
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19 end;
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20 end
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21
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22 module:hook("stanza/"..xmlns_csi..":active", refire_event("csi-client-active"));
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23 module:hook("stanza/"..xmlns_csi..":inactive", refire_event("csi-client-inactive"));
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24
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25 function module.load()
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26 if prosody.hosts[module.host].events._handlers["csi-client-active"] then
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27 csi_handler_available = true;
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28 module:set_status("core", "CSI handler module loaded");
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29 else
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30 csi_handler_available = false;
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31 module:set_status("warn", "No CSI handler module loaded");
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32 end
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33 end
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34 module:hook("module-loaded", module.load);
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35 module:hook("module-unloaded", module.load);