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prosody
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plugins/mod_s2s_bidi.lua @ 11704:0a8671f32424
mod_s2s: Guard against missing 'to' on incoming stream
Given an incoming <stream:stream from="example.com"> this line would
have mistakenly reported the 'from' as the local host. Neither are
technically required and may be missing, especially on connections used
only for Dialback.
Outgoing connections initiated by Prosody always have 'from_host' and
'to_host', so it is safer to check it this way.
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 18 Jul 2021 09:08:04 +0200 |
parent | 10458:602dd1e2f399 |
child | 12330:38b5b05407be |
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-- Prosody IM -- Copyright (C) 2019 Kim Alvefur -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local st = require "util.stanza"; local xmlns_bidi_feature = "urn:xmpp:features:bidi" local xmlns_bidi = "urn:xmpp:bidi"; local require_encryption = module:get_option_boolean("s2s_require_encryption", false); module:hook("s2s-stream-features", function(event) local origin, features = event.origin, event.features; if origin.type == "s2sin_unauthed" and (not require_encryption or origin.secure) then features:tag("bidi", { xmlns = xmlns_bidi_feature }):up(); end end); module:hook_tag("http://etherx.jabber.org/streams", "features", function (session, stanza) if session.type == "s2sout_unauthed" and (not require_encryption or session.secure) then local bidi = stanza:get_child("bidi", xmlns_bidi_feature); if bidi then session.incoming = true; session.log("debug", "Requesting bidirectional stream"); session.sends2s(st.stanza("bidi", { xmlns = xmlns_bidi })); end end end, 200); module:hook_tag("urn:xmpp:bidi", "bidi", function(session) if session.type == "s2sin_unauthed" and (not require_encryption or session.secure) then session.log("debug", "Requested bidirectional stream"); session.outgoing = true; return true; end end);