view mod_auth_pam/mod_auth_pam.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
parents 57bb2497fadc
children
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-- PAM authentication for Prosody
-- Copyright (C) 2013 Kim Alvefur
--
-- Requires https://github.com/devurandom/lua-pam
-- and LuaPosix

local posix = require "posix";
local pam = require "pam";
local new_sasl = require "util.sasl".new;

function user_exists(username)
	return not not posix.getpasswd(username);
end

function test_password(username, password)
	local h, err = pam.start("xmpp", username, {
		function (t)
			if #t == 1 and t[1][1] == pam.PROMPT_ECHO_OFF then
				return { { password, 0} };
			end
		end
	});
	if h and h:authenticate() and h:endx(pam.SUCCESS) then
		return user_exists(username), true;
	end
	return nil, true;
end

function get_sasl_handler()
	return new_sasl(module.host, {
		plain_test = function(sasl, ...)
			return test_password(...)
		end
	});
end

module:provides"auth";