prosody-modules
0f5657db1cfc
mod_isolate_host/mod_isolate_host.lua

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mod_isolate_host/mod_isolate_host.lua @ 5296:0f5657db1cfc

mod_isolate_host: handle server-generated stanzas The hook for setting the no_host_isolation is only called for c2s sessions. This does not work for stanzas generated by the server, such as PEP notifications or presence probe answers. To handle that, we do per-stanza checks for the case that the origin is local.
author Jonas Schäfer <jonas@wielicki.name>
date Sat, 01 Apr 2023 12:03:08 +0200
parent 5096:16db0a6e868c
child 5297:4bba2d27ffaf
comparison
equal deleted inserted replaced
5295:98d5acb93439 5296:0f5657db1cfc
20 if to_host and to_host ~= origin.host and not except_domains:contains(to_host) then 20 if to_host and to_host ~= origin.host and not except_domains:contains(to_host) then
21 if to_host:match("^[^.]+%.(.+)$") == origin.host then -- Permit subdomains 21 if to_host:match("^[^.]+%.(.+)$") == origin.host then -- Permit subdomains
22 except_domains:add(to_host); 22 except_domains:add(to_host);
23 return; 23 return;
24 end 24 end
25 if origin.type == "local" then
26 -- this is code-generated, which means that set_session_isolation_flag has never triggered.
27 -- we need to check explicitly.
28 if not is_jid_isolated(jid_bare(event.stanza.attr.from)) then
29 module:log("debug", "server-generated stanza from %s is allowed, as the jid is not isolated", event.stanza.attr.from);
30 return;
31 end
32 end
25 module:log("warn", "Forbidding stanza from %s to %s", stanza.attr.from or origin.full_jid, stanza.attr.to); 33 module:log("warn", "Forbidding stanza from %s to %s", stanza.attr.from or origin.full_jid, stanza.attr.to);
26 origin.send(st.error_reply(stanza, "auth", "forbidden", "Communication with "..to_host.." is not available")); 34 origin.send(st.error_reply(stanza, "auth", "forbidden", "Communication with "..to_host.." is not available"));
27 return true; 35 return true;
28 end 36 end
29 end 37 end
34 end 42 end
35 end 43 end
36 44
37 module:default_permission("prosody:admin", "xmpp:federate"); 45 module:default_permission("prosody:admin", "xmpp:federate");
38 46
39 function check_user_isolated(event) 47 function is_jid_isolated(bare_jid)
48 if module:may("xmpp:federate", bare_jid) or except_users:contains(bare_jid) then
49 return false;
50 else
51 return true;
52 end
53 end
54
55 function set_session_isolation_flag(event)
40 local session = event.session; 56 local session = event.session;
41 local bare_jid = jid_bare(session.full_jid); 57 local bare_jid = jid_bare(session.full_jid);
42 if module:may("xmpp:federate", event) or except_users:contains(bare_jid) then 58 if not is_jid_isolated(bare_jid) then
43 session.no_host_isolation = true; 59 session.no_host_isolation = true;
44 end 60 end
45 module:log("debug", "%s is %sisolated", session.full_jid or "[?]", session.no_host_isolation and "" or "not "); 61 module:log("debug", "%s is %sisolated", session.full_jid or "[?]", session.no_host_isolation and "" or "not ");
46 end 62 end
47 63
48 module:hook("resource-bind", check_user_isolated); 64 module:hook("resource-bind", set_session_isolation_flag);