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plugins/mod_dialback.lua @ 4297:3421dfaa8188 0.8.1
mod_storage_sql: Log error when failing to update MySQL schema
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 03 Jun 2011 05:34:22 +0100 |
parent | 4227:6b83ef6ec845 |
child | 4238:05f991b4a90e |
child | 4314:1e1110840965 |
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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 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
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 |
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10 local hosts = _G.hosts; |
191 | 11 local send_s2s = require "core.s2smanager".send_to_host; |
12 local s2s_make_authenticated = require "core.s2smanager".make_authenticated; | |
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13 local s2s_initiate_dialback = require "core.s2smanager".initiate_dialback; |
191 | 14 local s2s_verify_dialback = require "core.s2smanager".verify_dialback; |
15 | |
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16 local log = module._log; |
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17 |
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18 local st = require "util.stanza"; |
191 | 19 |
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20 local xmlns_stream = "http://etherx.jabber.org/streams"; |
191 | 21 local xmlns_dialback = "jabber:server:dialback"; |
22 | |
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23 local dialback_requests = setmetatable({}, { __mode = 'v' }); |
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24 |
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25 module:hook("stanza/jabber:server:dialback:verify", function(event) |
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26 local origin, stanza = event.origin, event.stanza; |
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27 |
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28 if origin.type == "s2sin_unauthed" or origin.type == "s2sin" then |
219 | 29 -- We are being asked to verify the key, to ensure it was generated by us |
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30 origin.log("debug", "verifying that dialback key is ours..."); |
219 | 31 local attr = stanza.attr; |
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32 -- COMPAT: Grr, ejabberd breaks this one too?? it is black and white in XEP-220 example 34 |
219 | 33 --if attr.from ~= origin.to_host then error("invalid-from"); end |
34 local type; | |
35 if s2s_verify_dialback(attr.id, attr.from, attr.to, stanza[1]) then | |
36 type = "valid" | |
37 else | |
38 type = "invalid" | |
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39 origin.log("warn", "Asked to verify a dialback key that was incorrect. An imposter is claiming to be %s?", attr.to); |
219 | 40 end |
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41 origin.log("debug", "verified dialback key... it is %s", type); |
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42 origin.sends2s(st.stanza("db:verify", { from = attr.to, to = attr.from, id = attr.id, type = type }):text(stanza[1])); |
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43 return true; |
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44 end |
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45 end); |
191 | 46 |
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47 module:hook("stanza/jabber:server:dialback:result", function(event) |
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48 local origin, stanza = event.origin, event.stanza; |
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49 |
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50 if origin.type == "s2sin_unauthed" or origin.type == "s2sin" then |
219 | 51 -- he wants to be identified through dialback |
52 -- We need to check the key with the Authoritative server | |
53 local attr = stanza.attr; | |
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54 origin.hosts[attr.from] = { dialback_key = stanza[1] }; |
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55 |
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56 if not hosts[attr.to] then |
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57 -- Not a host that we serve |
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58 origin.log("info", "%s tried to connect to %s, which we don't serve", attr.from, attr.to); |
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59 origin:close("host-unknown"); |
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60 return true; |
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61 end |
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62 |
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63 dialback_requests[attr.from] = origin; |
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64 |
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65 if not origin.from_host then |
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66 -- Just used for friendlier logging |
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67 origin.from_host = attr.from; |
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68 end |
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69 if not origin.to_host then |
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70 -- Just used for friendlier logging |
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71 origin.to_host = attr.to; |
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72 end |
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73 |
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74 origin.log("debug", "asking %s if key %s belongs to them", attr.from, stanza[1]); |
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75 send_s2s(attr.to, attr.from, |
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76 st.stanza("db:verify", { from = attr.to, to = attr.from, id = origin.streamid }):text(stanza[1])); |
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77 return true; |
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78 end |
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79 end); |
191 | 80 |
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81 module:hook("stanza/jabber:server:dialback:verify", function(event) |
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82 local origin, stanza = event.origin, event.stanza; |
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83 |
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84 if origin.type == "s2sout_unauthed" or origin.type == "s2sout" then |
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85 local attr = stanza.attr; |
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86 local dialback_verifying = dialback_requests[attr.from]; |
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87 if dialback_verifying then |
219 | 88 local valid; |
89 if attr.type == "valid" then | |
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90 s2s_make_authenticated(dialback_verifying, attr.from); |
219 | 91 valid = "valid"; |
92 else | |
93 -- Warn the original connection that is was not verified successfully | |
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94 log("warn", "authoritative server for "..(attr.from or "(unknown)").." denied the key"); |
219 | 95 valid = "invalid"; |
191 | 96 end |
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97 if not dialback_verifying.sends2s then |
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98 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+$")); |
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99 else |
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100 dialback_verifying.sends2s( |
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101 st.stanza("db:result", { from = attr.to, to = attr.from, id = attr.id, type = valid }) |
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102 :text(dialback_verifying.hosts[attr.from].dialback_key)); |
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103 end |
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104 dialback_requests[attr.from] = nil; |
219 | 105 end |
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106 return true; |
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107 end |
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108 end); |
191 | 109 |
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110 module:hook("stanza/jabber:server:dialback:result", function(event) |
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111 local origin, stanza = event.origin, event.stanza; |
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112 |
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113 if origin.type == "s2sout_unauthed" or origin.type == "s2sout" then |
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114 -- Remote server is telling us whether we passed dialback |
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115 |
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116 local attr = stanza.attr; |
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117 if not hosts[attr.to] then |
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118 origin:close("host-unknown"); |
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119 return true; |
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120 elseif hosts[attr.to].s2sout[attr.from] ~= origin then |
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121 -- This isn't right |
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122 origin:close("invalid-id"); |
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123 return true; |
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124 end |
219 | 125 if stanza.attr.type == "valid" then |
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126 s2s_make_authenticated(origin, attr.from); |
219 | 127 else |
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128 origin:close("not-authorized", "dialback authentication failed"); |
219 | 129 end |
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130 return true; |
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131 end |
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132 end); |
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133 |
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134 module:hook_stanza(xmlns_stream, "features", function (origin, stanza) |
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135 s2s_initiate_dialback(origin); |
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136 return true; |
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137 end, 100); |
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138 |
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139 -- Offer dialback to incoming hosts |
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140 module:hook("s2s-stream-features", function (data) |
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141 data.features:tag("dialback", { xmlns='urn:xmpp:features:dialback' }):tag("optional"):up():up(); |
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142 end); |