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mod_presence: Eliminated a jid_split
894 | 1 | -- Prosody IM v0.4 |
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2 | -- Copyright (C) 2008-2009 Matthew Wild |
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3 | -- Copyright (C) 2008-2009 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 | |
148 | 10 | |
11 | local logger = require "logger"; | |
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12 | local log = logger.init("xmppserver_listener"); |
148 | 13 | local lxp = require "lxp" |
14 | local init_xmlhandlers = require "core.xmlhandlers" | |
15 | local s2s_new_incoming = require "core.s2smanager".new_incoming; | |
16 | local s2s_streamopened = require "core.s2smanager".streamopened; | |
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17 | local s2s_streamclosed = require "core.s2smanager".streamclosed; |
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18 | local s2s_destroy_session = require "core.s2smanager".destroy_session; |
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19 | local s2s_attempt_connect = require "core.s2smanager".attempt_connection; |
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20 | local stream_callbacks = { stream_tag = "http://etherx.jabber.org/streams|stream", |
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21 | default_ns = "jabber:server", |
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22 | streamopened = s2s_streamopened, streamclosed = s2s_streamclosed, handlestanza = core_process_stanza }; |
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23 | |
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24 | function stream_callbacks.error(session, error, data) |
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25 | if error == "no-stream" then |
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26 | session:close("invalid-namespace"); |
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27 | else |
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28 | session.log("debug", "Server-to-server XML parse error: %s", tostring(error)); |
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29 | session:close("xml-not-well-formed"); |
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30 | end |
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31 | end |
331 | 32 | |
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33 | local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), debug.traceback()); end |
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34 | function stream_callbacks.handlestanza(a, b) |
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35 | xpcall(function () core_process_stanza(a, b) end, handleerr); |
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36 | end |
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37 | |
148 | 38 | local connlisteners_register = require "net.connlisteners".register; |
39 | ||
40 | local t_insert = table.insert; | |
41 | local t_concat = table.concat; | |
42 | local t_concatall = function (t, sep) local tt = {}; for _, s in ipairs(t) do t_insert(tt, tostring(s)); end return t_concat(tt, sep); end | |
43 | local m_random = math.random; | |
44 | local format = string.format; | |
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45 | local sessionmanager = require "core.sessionmanager"; |
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46 | local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; |
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47 | local st = require "util.stanza"; |
148 | 48 | |
49 | local sessions = {}; | |
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50 | local xmppserver = { default_port = 5269, default_mode = "*a" }; |
148 | 51 | |
52 | -- These are session methods -- | |
53 | ||
54 | local function session_reset_stream(session) | |
55 | -- Reset stream | |
331 | 56 | local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); |
148 | 57 | session.parser = parser; |
58 | ||
59 | session.notopen = true; | |
60 | ||
61 | function session.data(conn, data) | |
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62 | local ok, err = parser:parse(data); |
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63 | if ok then return; end |
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64 | session:close("xml-not-well-formed"); |
148 | 65 | end |
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66 | |
148 | 67 | return true; |
68 | end | |
69 | ||
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70 | |
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71 | local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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72 | local function session_close(session, reason) |
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73 | local log = session.log or log; |
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74 | if session.conn then |
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75 | if reason then |
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76 | if type(reason) == "string" then -- assume stream error |
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77 | log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason); |
331 | 78 | session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); |
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79 | elseif type(reason) == "table" then |
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80 | if reason.condition then |
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81 | local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); |
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82 | if reason.text then |
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83 | stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); |
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84 | end |
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85 | if reason.extra then |
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86 | stanza:add_child(reason.extra); |
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87 | end |
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88 | log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); |
331 | 89 | session.sends2s(stanza); |
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90 | elseif reason.name then -- a stanza |
331 | 91 | log("info", "Disconnecting %s->%s[%s], <stream:error> is: %s", session.from_host or "(unknown host)", session.to_host or "(unknown host)", session.type, tostring(reason)); |
92 | session.sends2s(reason); | |
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93 | end |
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94 | end |
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95 | end |
331 | 96 | session.sends2s("</stream:stream>"); |
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97 | session.conn.close(); |
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98 | xmppserver.disconnect(session.conn, "stream error"); |
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99 | end |
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100 | end |
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101 | |
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102 | |
148 | 103 | -- End of session methods -- |
104 | ||
105 | function xmppserver.listener(conn, data) | |
106 | local session = sessions[conn]; | |
107 | if not session then | |
108 | session = s2s_new_incoming(conn); | |
109 | sessions[conn] = session; | |
110 | ||
111 | -- Logging functions -- | |
112 | ||
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113 | |
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114 | local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); |
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115 | session.log = logger.init(conn_name); |
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116 | |
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117 | session.log("info", "Incoming s2s connection"); |
148 | 118 | |
119 | session.reset_stream = session_reset_stream; | |
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120 | session.close = session_close; |
148 | 121 | |
122 | session_reset_stream(session); -- Initialise, ready for use | |
123 | ||
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124 | session.dispatch_stanza = stream_callbacks.handlestanza; |
148 | 125 | end |
126 | if data then | |
127 | session.data(conn, data); | |
128 | end | |
129 | end | |
130 | ||
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131 | function xmppserver.disconnect(conn, err) |
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132 | local session = sessions[conn]; |
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133 | if session then |
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134 | if err and err ~= "closed" and session.srv_hosts then |
974 | 135 | (session.log or log)("debug", "s2s connection closed unexpectedly"); |
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136 | if s2s_attempt_connect(session, err) then |
974 | 137 | (session.log or log)("debug", "...so we're going to try again"); |
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138 | return; -- Session lives for now |
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139 | end |
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140 | end |
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141 | (session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err)); |
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142 | s2s_destroy_session(session); |
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143 | sessions[conn] = nil; |
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144 | session = nil; |
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145 | collectgarbage("collect"); |
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146 | end |
148 | 147 | end |
148 | ||
149 | function xmppserver.register_outgoing(conn, session) | |
150 | session.direction = "outgoing"; | |
151 | sessions[conn] = session; | |
152 | ||
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153 | session.reset_stream = session_reset_stream; |
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154 | session.close = session_close; |
148 | 155 | session_reset_stream(session); -- Initialise, ready for use |
156 | ||
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157 | --local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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158 | --session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
148 | 159 | end |
160 | ||
161 | connlisteners_register("xmppserver", xmppserver); | |
162 | ||
163 | ||
164 | -- We need to perform some initialisation when a connection is created | |
165 | -- We also need to perform that same initialisation at other points (SASL, TLS, ...) | |
166 | ||
167 | -- ...and we need to handle data | |
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168 | -- ...and record all sessions associated with connections |