Mercurial > prosody-modules

annotate mod_isolate_host/mod_isolate_host.lua @ 4878:c26f515751af

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_measure_process: Handle unlimited FD limits While unlikely, better type-safe than sorry
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 19:09:01 +0100
parents 8e19b943c2cd
children bc75fc9400ae
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1011
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 local jid = require "util.jid";
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 local jid_bare, jid_split = jid.bare, jid.split;
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 local is_admin = require "core.usermanager".is_admin;
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
4 local set = require "util.set";
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 local st = require "util.stanza";
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 local stanza_types = set.new{"message", "presence", "iq"};
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8 local jid_types = set.new{"bare", "full", "host"};
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
10 local except_domains = module:get_option_inherited_set("isolate_except_domains", {});
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 local except_users = module:get_option_inherited_set("isolate_except_users", {});
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 function check_stanza(event)
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14 local origin, stanza = event.origin, event.stanza;
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 if origin.no_host_isolation then return; end
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 local to_user, to_host = jid_split(event.stanza.attr.to);
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17 if to_host and to_host ~= origin.host and not except_domains:contains(to_host) then
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 if to_host:match("^[^.]+%.(.+)$") == origin.host then -- Permit subdomains
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 except_domains:add(to_host);
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 return;
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 end
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 module:log("warn", "Forbidding stanza from %s to %s", stanza.attr.from or origin.full_jid, stanza.attr.to);
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 origin.send(st.error_reply(stanza, "auth", "forbidden", "Communication with "..to_host.." is not available"));
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 return true;
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 end
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 end
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 for stanza_type in stanza_types do
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 for jid_type in jid_types do
1792
8e19b943c2cd mod_isolate_host: Bump event hook priorities to make sure they are above the core plugins
Kim Alvefur <zash@zash.se>
parents: 1011
diff changeset
30 module:hook("pre-"..stanza_type.."/"..jid_type, check_stanza, 1);
1011
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 end
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 end
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34 function check_user_isolated(event)
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 local session = event.session;
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 local bare_jid = jid_bare(session.full_jid);
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 if is_admin(bare_jid, module.host) or except_users:contains(bare_jid) then
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38 session.no_host_isolation = true;
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 end
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 module:log("debug", "%s is %sisolated", session.full_jid or "[?]", session.no_host_isolation and "" or "not ");
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 end
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
42
9466efd10af9 mod_isolate_host: Prevent communication between hosts, even internal ones
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43 module:hook("resource-bind", check_user_isolated);