Software / code / prosody
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net/xmppserver_listener.lua @ 834:596a6b425eb9
MUC: Replaced some duplicate code
| author | Waqas Hussain <waqas20@gmail.com> |
|---|---|
| date | Sat, 21 Feb 2009 01:49:09 +0500 |
| parent | 760:90ce865eebd8 |
| child | 896:2c0b9e3c11c3 |
| rev | line source |
|---|---|
| 759 | 1 -- Prosody IM v0.3 |
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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"; | |
| 12 local lxp = require "lxp" | |
| 13 local init_xmlhandlers = require "core.xmlhandlers" | |
| 14 local sm_new_session = require "core.sessionmanager".new_session; | |
| 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", streamopened = s2s_streamopened, streamclosed = s2s_streamclosed, handlestanza = core_process_stanza }; |
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21 |
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22 function stream_callbacks.error(session, error, data) |
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23 if error == "no-stream" then |
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24 session:close("invalid-namespace"); |
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25 else |
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26 session.log("debug", "Server-to-server XML parse error: %s", tostring(error)); |
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27 session:close("xml-not-well-formed"); |
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28 end |
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29 end |
| 331 | 30 |
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31 local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), debug.traceback()); end |
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32 function stream_callbacks.handlestanza(a, b) |
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33 xpcall(function () core_process_stanza(a, b) end, handleerr); |
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34 end |
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35 |
| 148 | 36 local connlisteners_register = require "net.connlisteners".register; |
| 37 | |
| 38 local t_insert = table.insert; | |
| 39 local t_concat = table.concat; | |
| 40 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 | |
| 41 local m_random = math.random; | |
| 42 local format = string.format; | |
| 43 local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; --import("core.sessionmanager", "new_session", "destroy_session"); | |
| 44 local st = stanza; | |
| 45 | |
| 46 local sessions = {}; | |
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47 local xmppserver = { default_port = 5269, default_mode = "*a" }; |
| 148 | 48 |
| 49 -- These are session methods -- | |
| 50 | |
| 51 local function session_reset_stream(session) | |
| 52 -- Reset stream | |
| 331 | 53 local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); |
| 148 | 54 session.parser = parser; |
| 55 | |
| 56 session.notopen = true; | |
| 57 | |
| 58 function session.data(conn, data) | |
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59 local ok, err = parser:parse(data); |
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60 if ok then return; end |
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61 session:close("xml-not-well-formed"); |
| 148 | 62 end |
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63 |
| 148 | 64 return true; |
| 65 end | |
| 66 | |
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67 |
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68 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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69 local function session_close(session, reason) |
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70 local log = session.log or log; |
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71 if session.conn then |
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72 if reason then |
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73 if type(reason) == "string" then -- assume stream error |
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74 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason); |
| 331 | 75 session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); |
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76 elseif type(reason) == "table" then |
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77 if reason.condition then |
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78 local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); |
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79 if reason.text then |
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80 stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); |
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81 end |
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82 if reason.extra then |
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83 stanza:add_child(reason.extra); |
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84 end |
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85 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); |
| 331 | 86 session.sends2s(stanza); |
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87 elseif reason.name then -- a stanza |
| 331 | 88 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)); |
| 89 session.sends2s(reason); | |
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90 end |
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91 end |
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92 end |
| 331 | 93 session.sends2s("</stream:stream>"); |
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94 session.conn.close(); |
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95 xmppserver.disconnect(session.conn, "stream error"); |
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96 end |
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97 end |
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98 |
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99 |
| 148 | 100 -- End of session methods -- |
| 101 | |
| 102 function xmppserver.listener(conn, data) | |
| 103 local session = sessions[conn]; | |
| 104 if not session then | |
| 105 session = s2s_new_incoming(conn); | |
| 106 sessions[conn] = session; | |
| 107 | |
| 108 -- Logging functions -- | |
| 109 | |
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110 |
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111 local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); |
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112 session.log = logger.init(conn_name); |
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113 |
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114 session.log("info", "Incoming s2s connection"); |
| 148 | 115 |
| 116 session.reset_stream = session_reset_stream; | |
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117 session.close = session_close; |
| 148 | 118 |
| 119 session_reset_stream(session); -- Initialise, ready for use | |
| 120 | |
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121 session.dispatch_stanza = stream_callbacks.handlestanza; |
| 148 | 122 end |
| 123 if data then | |
| 124 session.data(conn, data); | |
| 125 end | |
| 126 end | |
| 127 | |
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128 function xmppserver.disconnect(conn, err) |
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129 local session = sessions[conn]; |
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130 if session then |
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131 if err and err ~= "closed" and session.srv_hosts then |
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132 if s2s_attempt_connect(session, err) then |
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133 return; -- Session lives for now |
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134 end |
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135 end |
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136 (session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err)); |
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137 s2s_destroy_session(session); |
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138 sessions[conn] = nil; |
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139 session = nil; |
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140 collectgarbage("collect"); |
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141 end |
| 148 | 142 end |
| 143 | |
| 144 function xmppserver.register_outgoing(conn, session) | |
| 145 session.direction = "outgoing"; | |
| 146 sessions[conn] = session; | |
| 147 | |
| 148 session.reset_stream = session_reset_stream; | |
| 149 session_reset_stream(session); -- Initialise, ready for use | |
| 150 | |
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151 --local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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152 --session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
| 148 | 153 end |
| 154 | |
| 155 connlisteners_register("xmppserver", xmppserver); | |
| 156 | |
| 157 | |
| 158 -- We need to perform some initialisation when a connection is created | |
| 159 -- We also need to perform that same initialisation at other points (SASL, TLS, ...) | |
| 160 | |
| 161 -- ...and we need to handle data | |
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162 -- ...and record all sessions associated with connections |
