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plugins/mod_component.lua @ 3360:6c07b64e972c
net.dns: Call :cancel() on the current resolver instead of the prototype
author | Matthew Wild <mwild1@gmail.com> |
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date | Wed, 14 Jul 2010 15:32:14 +0100 |
parent | 3319:95fc08869273 |
child | 3503:85e511e01d3c |
rev | line source |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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4 -- |
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5 -- This project is MIT/X11 licensed. Please see the |
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6 -- COPYING file in the source package for more information. |
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7 -- |
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8 |
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9 if module:get_host_type() ~= "component" then |
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10 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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11 end |
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12 |
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13 local hosts = _G.hosts; |
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14 |
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15 local t_concat = table.concat; |
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16 |
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17 local config = require "core.configmanager"; |
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18 local cm_register_component = require "core.componentmanager".register_component; |
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19 local cm_deregister_component = require "core.componentmanager".deregister_component; |
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20 local sha1 = require "util.hashes".sha1; |
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21 local st = require "util.stanza"; |
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22 |
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23 local log = module._log; |
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24 |
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25 --- Handle authentication attempts by components |
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26 function handle_component_auth(session, stanza) |
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27 log("info", "Handling component auth"); |
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28 if (not session.host) or #stanza.tags > 0 then |
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29 (session.log or log)("warn", "Component handshake invalid"); |
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30 session:close("not-authorized"); |
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31 return; |
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32 end |
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33 |
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34 local secret = config.get(session.user, "core", "component_secret"); |
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35 if not secret then |
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36 (session.log or log)("warn", "Component attempted to identify as %s, but component_secret is not set", session.user); |
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37 session:close("not-authorized"); |
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38 return; |
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39 end |
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40 |
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41 local supplied_token = t_concat(stanza); |
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42 local calculated_token = sha1(session.streamid..secret, true); |
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43 if supplied_token:lower() ~= calculated_token:lower() then |
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44 log("info", "Component for %s authentication failed", session.host); |
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45 session:close{ condition = "not-authorized", text = "Given token does not match calculated token" }; |
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46 return; |
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47 end |
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48 |
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49 |
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50 -- Authenticated now |
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51 log("info", "Component authenticated: %s", session.host); |
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52 |
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53 session.component_validate_from = module:get_option_boolean("validate_from_addresses") ~= false; |
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54 |
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55 -- If component not already created for this host, create one now |
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56 if not hosts[session.host].connected then |
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57 local send = session.send; |
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58 session.component_session = cm_register_component(session.host, function (_, data) |
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59 if data.attr and data.attr.xmlns == "jabber:client" then |
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60 data.attr.xmlns = nil; |
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61 end |
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62 return send(data); |
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63 end); |
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64 hosts[session.host].connected = true; |
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65 log("info", "Component successfully registered"); |
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66 else |
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67 log("error", "Multiple components bound to the same address, first one wins (TODO: Implement stanza distribution)"); |
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68 end |
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69 |
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70 -- Signal successful authentication |
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71 session.send(st.stanza("handshake")); |
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72 end |
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73 |
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74 module:add_handler("component", "handshake", "jabber:component:accept", handle_component_auth); |