File

util/session.lua @ 13289:38c95544b7ee

mod_saslauth, mod_c2s: Disable tls-server-end-point channel binding by default This channel binding method is now enabled when a hash is manually set in the config, or it attempts to discover the hash automatically if the value is the special string "auto". A related change to mod_c2s prevents complicated certificate lookups in the client connection hot path - this work now happens only when this channel binding method is used. I'm not aware of anything else that uses ssl_cfg (vs ssl_ctx). Rationale for disabling by default: - Minor performance impact in automatic cert detection - This method is weak against a leaked/stolen private key (other methods such as 'tls-exporter' would not be compromised in such a case) Rationale for keeping the implementation: - For some deployments, this may be the only method available (e.g. due to TLS offloading in another process/server).
author Matthew Wild <mwild1@gmail.com>
date Thu, 26 Oct 2023 15:14:39 +0100
parent 13165:9c13c11b199d
line wrap: on
line source

local initialize_filters = require "prosody.util.filters".initialize;
local time = require "prosody.util.time";
local logger = require "prosody.util.logger";

local function new_session(typ)
	local session = {
		type = typ .. "_unauthed";
		base_type = typ;
		since = time.now();
	};
	return session;
end

local function set_id(session)
	local id = session.base_type .. tostring(session):match("%x+$"):lower();
	session.id = id;
	return session;
end

local function set_logger(session)
	local log = logger.init(session.id);
	session.log = log;
	return session;
end

local function set_conn(session, conn)
	session.conn = conn;
	session.ip = conn:ip();
	return session;
end

local function set_send(session)
	local conn = session.conn;
	if not conn then
		function session.send(data)
			session.log("debug", "Discarding data sent to unconnected session: %s", data);
			return false;
		end
		return session;
	end
	local filter = initialize_filters(session);
	local w = conn.write;
	session.send = function (t)
		if t.name then
			t = filter("stanzas/out", t);
		end
		if t then
			t = filter("bytes/out", tostring(t));
			if t then
				local ret, err = w(conn, t);
				if not ret then
					session.log("debug", "Error writing to connection: %s", err);
					return false, err;
				end
			end
		end
		return true;
	end
	return session;
end

local function set_role(session, role)
	session.role = role;
end

return {
	new = new_session;

	set_id = set_id;
	set_logger = set_logger;
	set_conn = set_conn;
	set_send = set_send;
	set_role = set_role;
}