Thu, 29 Jan 2009 02:13:30 +0000
configmanager: Add support for defining components
-- Prosody IM v0.2 -- Copyright (C) 2008 Matthew Wild -- Copyright (C) 2008 Waqas Hussain -- -- This program is free software; you can redistribute it and/or -- modify it under the terms of the GNU General Public License -- as published by the Free Software Foundation; either version 2 -- of the License, or (at your option) any later version. -- -- This program is distributed in the hope that it will be useful, -- but WITHOUT ANY WARRANTY; without even the implied warranty of -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -- GNU General Public License for more details. -- -- You should have received a copy of the GNU General Public License -- along with this program; if not, write to the Free Software -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -- local send_s2s = require "core.s2smanager".send_to_host; local s2s_make_authenticated = require "core.s2smanager".make_authenticated; local s2s_verify_dialback = require "core.s2smanager".verify_dialback; local s2s_destroy_session = require "core.s2smanager".destroy_session; local st = require "util.stanza"; local log = require "util.logger".init("mod_dialback"); local xmlns_dialback = "jabber:server:dialback"; local dialback_requests = setmetatable({}, { __mode = 'v' }); module:add_handler({"s2sin_unauthed", "s2sin"}, "verify", xmlns_dialback, function (origin, stanza) -- We are being asked to verify the key, to ensure it was generated by us log("debug", "verifying dialback key..."); local attr = stanza.attr; -- FIXME: Grr, ejabberd breaks this one too?? it is black and white in XEP-220 example 34 --if attr.from ~= origin.to_host then error("invalid-from"); end local type; if s2s_verify_dialback(attr.id, attr.from, attr.to, stanza[1]) then type = "valid" else type = "invalid" log("warn", "Asked to verify a dialback key that was incorrect. An imposter is claiming to be %s?", attr.to); end log("debug", "verified dialback key... it is %s", type); origin.sends2s(st.stanza("db:verify", { from = attr.to, to = attr.from, id = attr.id, type = type }):text(stanza[1])); end); module:add_handler({ "s2sin_unauthed", "s2sin" }, "result", xmlns_dialback, function (origin, stanza) -- he wants to be identified through dialback -- We need to check the key with the Authoritative server local attr = stanza.attr; origin.hosts[attr.from] = { dialback_key = stanza[1] }; if not hosts[attr.to] then -- Not a host that we serve log("info", "%s tried to connect to %s, which we don't serve", attr.from, attr.to); origin:close("host-unknown"); return; end dialback_requests[attr.from] = origin; if not origin.from_host then -- Just used for friendlier logging origin.from_host = attr.from; end if not origin.to_host then -- Just used for friendlier logging origin.to_host = attr.to; end log("debug", "asking %s if key %s belongs to them", attr.from, stanza[1]); send_s2s(attr.to, attr.from, st.stanza("db:verify", { from = attr.to, to = attr.from, id = origin.streamid }):text(stanza[1])); end); module:add_handler({ "s2sout_unauthed", "s2sout" }, "verify", xmlns_dialback, function (origin, stanza) local attr = stanza.attr; local dialback_verifying = dialback_requests[attr.from]; if dialback_verifying then local valid; if attr.type == "valid" then s2s_make_authenticated(dialback_verifying, attr.from); valid = "valid"; else -- Warn the original connection that is was not verified successfully log("warn", "authoritative server for "..(attr.from or "(unknown)").." denied the key"); valid = "invalid"; end if not dialback_verifying.sends2s then log("warn", "Incoming s2s session %s was closed in the meantime, so we can't notify it of the db result", tostring(dialback_verifying):match("%w+$")); else dialback_verifying.sends2s( st.stanza("db:result", { from = attr.to, to = attr.from, id = attr.id, type = valid }) :text(dialback_verifying.hosts[attr.from].dialback_key)); end dialback_requests[attr.from] = nil; end end); module:add_handler({ "s2sout_unauthed", "s2sout" }, "result", xmlns_dialback, function (origin, stanza) -- Remote server is telling us whether we passed dialback local attr = stanza.attr; if not hosts[attr.to] then origin:close("host-unknown"); return; elseif hosts[attr.to].s2sout[attr.from] ~= origin then -- This isn't right origin:close("invalid-id"); return; end if stanza.attr.type == "valid" then s2s_make_authenticated(origin, attr.from); else s2s_destroy_session(origin) end end);