view mod_isolate_host/mod_isolate_host.lua @ 5255:001c8fdc91a4

mod_http_oauth2: Add support for the "openid" scope This "openid" scope is there to signal access to the userinfo endpoint, which is needed for OIDC support. We don't actually check this later because the userinfo endpoint only returns info embedded in the token itself, but in the future we may want to check this more carefully.
author Kim Alvefur <zash@zash.se>
date Thu, 16 Mar 2023 17:06:35 +0100
parents 16db0a6e868c
children 0f5657db1cfc
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local jid = require "util.jid";
local jid_bare, jid_host = jid.bare, jid.host;
local set = require "util.set";
local st = require "util.stanza";

local stanza_types = set.new{"message", "presence", "iq"};
local jid_types = set.new{"bare", "full", "host"};

local except_domains = module:get_option_inherited_set("isolate_except_domains", {});
local except_users = module:get_option_inherited_set("isolate_except_users", {});

if not module.may then
	module:depends("compat_roles");
end

function check_stanza(event)
	local origin, stanza = event.origin, event.stanza;
	if origin.no_host_isolation then return; end
	local to_host = jid_host(event.stanza.attr.to);
	if to_host and to_host ~= origin.host and not except_domains:contains(to_host) then
		if to_host:match("^[^.]+%.(.+)$") == origin.host then -- Permit subdomains
			except_domains:add(to_host);
			return;
		end
		module:log("warn", "Forbidding stanza from %s to %s", stanza.attr.from or origin.full_jid, stanza.attr.to);
		origin.send(st.error_reply(stanza, "auth", "forbidden", "Communication with "..to_host.." is not available"));
		return true;
	end
end

for stanza_type in stanza_types do
	for jid_type in jid_types do
		module:hook("pre-"..stanza_type.."/"..jid_type, check_stanza, 1);
	end
end

module:default_permission("prosody:admin", "xmpp:federate");

function check_user_isolated(event)
	local session = event.session;
	local bare_jid = jid_bare(session.full_jid);
	if module:may("xmpp:federate", event) or except_users:contains(bare_jid) then
		session.no_host_isolation = true;
	end
	module:log("debug", "%s is %sisolated", session.full_jid or "[?]", session.no_host_isolation and "" or "not ");
end

module:hook("resource-bind", check_user_isolated);