view mod_dwd/mod_dwd.lua @ 5518:d87d0e4a8516

mod_http_oauth2: Validate the OpenID 'prompt' parameter Without support for affecting the login and consent procedure, it seems sensible to inform the client that they can't change anything with this parameter.
author Kim Alvefur <zash@zash.se>
date Mon, 05 Jun 2023 22:19:17 +0200
parents 4e235e565693
children
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local hosts = _G.hosts;
local st = require "util.stanza";
local nameprep = require "util.encodings".stringprep.nameprep;
local cert_verify_identity = require "util.x509".verify_identity;

module:hook("stanza/jabber:server:dialback:result", function(event)
	local origin, stanza = event.origin, event.stanza;

	if origin.cert_chain_status == "valid" and origin.type == "s2sin_unauthed" or origin.type == "s2sin" then
		local attr = stanza.attr;
		local to, from = nameprep(attr.to), nameprep(attr.from);

		local conn = origin.conn:socket()
		local cert;
		if conn.getpeercertificate then
			cert = conn:getpeercertificate()
		end

		if cert and hosts[to] and cert_verify_identity(from, "xmpp-server", cert) then

			-- COMPAT: ejabberd, gmail and perhaps others do not always set 'to' and 'from'
			-- on streams. We fill in the session's to/from here instead.
			if not origin.from_host then
				origin.from_host = from;
			end
			if not origin.to_host then
				origin.to_host = to;
			end

			module:log("info", "Accepting Dialback without Dialback for %s", from);
			module:fire_event("s2s-authenticated", { session = origin, host = from });
			origin.sends2s(
				st.stanza("db:result", { from = attr.to, to = attr.from, id = attr.id, type = "valid" }));

			return true;
		end
	end
end, 100);