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| author | JC Brand <jc@opkode.com> | 2020-10-02 16:12:47 +0200 |
|---|---|---|
| committer | JC Brand <jc@opkode.com> | 2020-10-02 16:12:47 +0200 |
| commit | 25135bbd16bd852379f63923bc3edfdc63a3145f (patch) | |
| tree | 6d3109723eddb5dbdf5b81c2b6f5cf79e857ba4a /plugins/muc | |
| parent | 0b783f68d665d829ac036fc34cf9d4eaf57154af (diff) | |
| download | prosody-25135bbd16bd852379f63923bc3edfdc63a3145f.tar.gz prosody-25135bbd16bd852379f63923bc3edfdc63a3145f.zip | |
MUC: Reject probes from non-occupants
Also test for self-probes
Diffstat (limited to 'plugins/muc')
| -rw-r--r-- | plugins/muc/muc.lib.lua | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/plugins/muc/muc.lib.lua b/plugins/muc/muc.lib.lua index 5bbc28f1..d1449af1 100644 --- a/plugins/muc/muc.lib.lua +++ b/plugins/muc/muc.lib.lua @@ -595,6 +595,26 @@ function room_mt:build_unavailable_presence(from_muc_jid, to_jid) return event.stanza; end +function room_mt:respond_to_probe(origin, stanza, probing_occupant) + if probing_occupant == nil then + origin.send(st.error_reply(stanza, "cancel", "not-acceptable", "You are not currently connected to this chat", self.jid)); + return; + end + + local from_muc_jid = stanza.attr.to; + local probed_occupant = self:get_occupant_by_nick(from_muc_jid); + if probed_occupant == nil then + local to_jid = stanza.attr.from; + local pr = self:build_unavailable_presence(from_muc_jid, to_jid); + if pr then + self:route_stanza(pr); + end + return; + end + local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"}); + self:publicise_occupant_status(probed_occupant, x, nil, nil, nil, nil, false, probing_occupant); +end + function room_mt:handle_normal_presence(origin, stanza) local type = stanza.attr.type; @@ -616,18 +636,7 @@ function room_mt:handle_normal_presence(origin, stanza) if orig_occupant == nil then return true; end -- Unavailable from someone not in the room -- dest_occupant = nil elseif type == "probe" then - local occupant = self:get_occupant_by_nick(stanza.attr.to); - if occupant == nil then - local from_muc_jid = stanza.attr.to; - local to_jid = real_jid; - local pr = self:build_unavailable_presence(from_muc_jid, to_jid); - if pr then - self:route_stanza(pr); - end - return true; - end - local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"}); - self:publicise_occupant_status(occupant, x, nil, nil, nil, nil, false, orig_occupant); + self:respond_to_probe(origin, stanza, orig_occupant) return true; elseif orig_occupant and orig_occupant.nick == stanza.attr.to then -- Just a presence update log("debug", "presence update for %s from session %s", orig_occupant.nick, real_jid); |