Mercurial > prosody-modules
annotate mod_component_roundrobin/mod_component_roundrobin.lua @ 684:27529031890b
mod_host_guard: now a proper error is returned when stanzas are routed to a filtered remote server (thanks Zash)
author | Marco Cirillo <maranda@lightwitch.org> |
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date | Sun, 27 May 2012 02:44:06 +0000 |
parents | a6d215c73c47 |
children | 08e50d742392 |
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406
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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 sha1 = require "util.hashes".sha1; |
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18 local st = require "util.stanza"; |
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19 |
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20 local log = module._log; |
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21 |
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22 local sessions = {}; |
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23 |
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24 local function on_destroy(session, err) |
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25 if sessions[session] then |
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26 sessions[session] = nil; |
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27 session.on_destroy = nil; |
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28 end |
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29 end |
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30 |
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31 local last_session; |
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32 local function handle_stanza(event) |
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33 local stanza = event.stanza; |
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34 if next(sessions) then |
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35 stanza.attr.xmlns = nil; |
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36 last_session = next(sessions, last_session) or next(sessions); |
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37 last_session.send(stanza); |
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38 else |
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39 log("warn", "Component not connected, bouncing error for: %s", stanza:top_tag()); |
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40 if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then |
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41 event.origin.send(st.error_reply(stanza, "wait", "service-unavailable", "Component unavailable")); |
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42 end |
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43 end |
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44 return true; |
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45 end |
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46 |
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47 module:hook("iq/bare", handle_stanza, -1); |
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48 module:hook("message/bare", handle_stanza, -1); |
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49 module:hook("presence/bare", handle_stanza, -1); |
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50 module:hook("iq/full", handle_stanza, -1); |
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51 module:hook("message/full", handle_stanza, -1); |
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52 module:hook("presence/full", handle_stanza, -1); |
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53 module:hook("iq/host", handle_stanza, -1); |
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54 module:hook("message/host", handle_stanza, -1); |
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55 module:hook("presence/host", handle_stanza, -1); |
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56 |
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57 --- Handle authentication attempts by components |
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58 function handle_component_auth(event) |
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59 local session, stanza = event.origin, event.stanza; |
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60 |
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61 if session.type ~= "component" then return; end |
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62 if sessions[session] then return; end |
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63 |
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64 if (not session.host) or #stanza.tags > 0 then |
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65 (session.log or log)("warn", "Invalid component handshake for host: %s", session.host); |
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66 session:close("not-authorized"); |
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67 return true; |
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68 end |
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69 |
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70 local secret = module:get_option("component_secret"); |
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71 if not secret then |
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72 (session.log or log)("warn", "Component attempted to identify as %s, but component_secret is not set", session.host); |
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73 session:close("not-authorized"); |
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74 return true; |
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75 end |
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76 |
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77 local supplied_token = t_concat(stanza); |
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78 local calculated_token = sha1(session.streamid..secret, true); |
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79 if supplied_token:lower() ~= calculated_token:lower() then |
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80 log("info", "Component authentication failed for %s", session.host); |
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81 session:close{ condition = "not-authorized", text = "Given token does not match calculated token" }; |
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82 return true; |
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83 end |
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84 |
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85 -- Add session to sessions table |
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86 sessions[session] = true; |
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87 session.on_destroy = on_destroy; |
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88 session.component_validate_from = module:get_option_boolean("validate_from_addresses", true); |
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89 log("info", "Component successfully authenticated: %s", session.host); |
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90 session.send(st.stanza("handshake")); |
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91 |
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92 return true; |
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93 end |
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94 |
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95 module:hook("stanza/jabber:component:accept:handshake", handle_component_auth); |