author | Waqas Hussain <waqas20@gmail.com> |
Tue, 09 Nov 2010 20:23:28 +0500 | |
changeset 3579 | 9720fa5e0991 |
parent 3540 | bc139431830b |
child 3581 | 3f3f8227ba76 |
permissions | -rw-r--r-- |
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-- Prosody IM |
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-- Copyright (C) 2008-2010 Matthew Wild |
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-- Copyright (C) 2008-2010 Waqas Hussain |
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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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if module:get_host_type() ~= "component" then |
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error("Don't load mod_component manually, it should be for a component, please see http://prosody.im/doc/components", 0); |
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end |
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local hosts = _G.hosts; |
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local t_concat = table.concat; |
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local config = require "core.configmanager"; |
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local cm_register_component = require "core.componentmanager".register_component; |
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local cm_deregister_component = require "core.componentmanager".deregister_component; |
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local sha1 = require "util.hashes".sha1; |
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local st = require "util.stanza"; |
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local log = module._log; |
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--- Handle authentication attempts by components |
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function handle_component_auth(event) |
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local session, stanza = event.origin, event.stanza; |
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if session.type ~= "component" then return; end |
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log("info", "Handling component auth"); |
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if (not session.host) or #stanza.tags > 0 then |
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(session.log or log)("warn", "Component handshake invalid"); |
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session:close("not-authorized"); |
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return true; |
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end |
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local secret = config.get(session.host, "core", "component_secret"); |
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if not secret then |
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(session.log or log)("warn", "Component attempted to identify as %s, but component_secret is not set", session.host); |
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session:close("not-authorized"); |
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return true; |
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end |
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local supplied_token = t_concat(stanza); |
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local calculated_token = sha1(session.streamid..secret, true); |
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if supplied_token:lower() ~= calculated_token:lower() then |
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log("info", "Component for %s authentication failed", session.host); |
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session:close{ condition = "not-authorized", text = "Given token does not match calculated token" }; |
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return true; |
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end |
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-- Authenticated now |
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log("info", "Component authenticated: %s", session.host); |
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session.component_validate_from = module:get_option_boolean("validate_from_addresses") ~= false; |
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-- If component not already created for this host, create one now |
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if not hosts[session.host].connected then |
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local send = session.send; |
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session.component_session = cm_register_component(session.host, function (_, data) |
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if data.attr and data.attr.xmlns == "jabber:client" then |
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data.attr.xmlns = nil; |
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end |
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return send(data); |
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end); |
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hosts[session.host].connected = true; |
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log("info", "Component successfully registered"); |
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else |
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log("error", "Multiple components bound to the same address, first one wins (TODO: Implement stanza distribution)"); |
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session:close{ condition = "conflict", text = "Component already connected" }; |
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return true; |
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end |
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-- Signal successful authentication |
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session.send(st.stanza("handshake")); |
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return true; |
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end |
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module:hook("stanza/jabber:component:accept:handshake", handle_component_auth); |