prosody-modules
dfe1818962f5
mod_require_otr/mod_require_otr.lua

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mod_require_otr/mod_require_otr.lua @ 1295:dfe1818962f5

mod_require_otr: New module to (attempt to) require that all messages are encrypted with OTR (credit for the idea goes to Gregory Maxwell on the liberationtech mailing list)
author Matthew Wild <mwild1@gmail.com>
date Sat, 01 Feb 2014 04:42:30 +0500
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1294:bb1fb54360ab 1295:dfe1818962f5
1 local st = require "util.stanza";
2 local block_groupchat = module:get_option_boolean("otr_block_groupchat", false);
3
4 function reject_plaintext_messages(event)
5 local body = event.stanza:get_child_text("body");
6 if body and body:sub(1,4) ~= "?OTR" or (not block_groupchat and event.stanza.attr.type == "groupchat") then
7 return event.origin.send(st.error_reply(event.stanza, "modify", "policy-violation", "OTR encryption is required for conversations on this server"));
8 end
9 end
10
11 module:hook("pre-message/bare", reject_plaintext_messages, 300);
12 module:hook("pre-message/full", reject_plaintext_messages, 300);
13 module:hook("pre-message/host", reject_plaintext_messages, 300);