Software / code / prosody
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net/xmppserver_listener.lua @ 1014:a72e285f7510
Merge
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Mon, 20 Apr 2009 22:25:49 +0100 |
| parent | 990:235abebc896e |
| child | 1040:4c79b28bce64 |
| rev | line source |
|---|---|
| 896 | 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"; | |
| 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", |
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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; | |
| 45 local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; --import("core.sessionmanager", "new_session", "destroy_session"); | |
| 46 local st = stanza; | |
| 47 | |
| 48 local sessions = {}; | |
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49 local xmppserver = { default_port = 5269, default_mode = "*a" }; |
| 148 | 50 |
| 51 -- These are session methods -- | |
| 52 | |
| 53 local function session_reset_stream(session) | |
| 54 -- Reset stream | |
| 331 | 55 local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); |
| 148 | 56 session.parser = parser; |
| 57 | |
| 58 session.notopen = true; | |
| 59 | |
| 60 function session.data(conn, data) | |
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61 local ok, err = parser:parse(data); |
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62 if ok then return; end |
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63 session:close("xml-not-well-formed"); |
| 148 | 64 end |
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65 |
| 148 | 66 return true; |
| 67 end | |
| 68 | |
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69 |
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70 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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71 local function session_close(session, reason) |
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72 local log = session.log or log; |
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73 if session.conn then |
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74 if reason then |
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75 if type(reason) == "string" then -- assume stream error |
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76 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason); |
| 331 | 77 session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); |
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78 elseif type(reason) == "table" then |
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79 if reason.condition then |
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80 local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); |
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81 if reason.text then |
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82 stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); |
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83 end |
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84 if reason.extra then |
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85 stanza:add_child(reason.extra); |
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86 end |
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87 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); |
| 331 | 88 session.sends2s(stanza); |
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89 elseif reason.name then -- a stanza |
| 331 | 90 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)); |
| 91 session.sends2s(reason); | |
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92 end |
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93 end |
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94 end |
| 331 | 95 session.sends2s("</stream:stream>"); |
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96 session.conn.close(); |
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97 xmppserver.disconnect(session.conn, "stream error"); |
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98 end |
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99 end |
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100 |
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101 |
| 148 | 102 -- End of session methods -- |
| 103 | |
| 104 function xmppserver.listener(conn, data) | |
| 105 local session = sessions[conn]; | |
| 106 if not session then | |
| 107 session = s2s_new_incoming(conn); | |
| 108 sessions[conn] = session; | |
| 109 | |
| 110 -- Logging functions -- | |
| 111 | |
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112 |
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113 local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); |
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114 session.log = logger.init(conn_name); |
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115 |
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116 session.log("info", "Incoming s2s connection"); |
| 148 | 117 |
| 118 session.reset_stream = session_reset_stream; | |
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119 session.close = session_close; |
| 148 | 120 |
| 121 session_reset_stream(session); -- Initialise, ready for use | |
| 122 | |
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123 session.dispatch_stanza = stream_callbacks.handlestanza; |
| 148 | 124 end |
| 125 if data then | |
| 126 session.data(conn, data); | |
| 127 end | |
| 128 end | |
| 129 | |
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130 function xmppserver.disconnect(conn, err) |
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131 local session = sessions[conn]; |
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132 if session then |
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133 if err and err ~= "closed" and session.srv_hosts then |
| 974 | 134 (session.log or log)("debug", "s2s connection closed unexpectedly"); |
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135 if s2s_attempt_connect(session, err) then |
| 974 | 136 (session.log or log)("debug", "...so we're going to try again"); |
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137 return; -- Session lives for now |
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138 end |
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139 end |
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140 (session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err)); |
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141 s2s_destroy_session(session); |
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142 sessions[conn] = nil; |
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143 session = nil; |
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144 collectgarbage("collect"); |
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145 end |
| 148 | 146 end |
| 147 | |
| 148 function xmppserver.register_outgoing(conn, session) | |
| 149 session.direction = "outgoing"; | |
| 150 sessions[conn] = session; | |
| 151 | |
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152 session.reset_stream = session_reset_stream; |
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153 session.close = session_close; |
| 148 | 154 session_reset_stream(session); -- Initialise, ready for use |
| 155 | |
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156 --local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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157 --session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
| 148 | 158 end |
| 159 | |
| 160 connlisteners_register("xmppserver", xmppserver); | |
| 161 | |
| 162 | |
| 163 -- We need to perform some initialisation when a connection is created | |
| 164 -- We also need to perform that same initialisation at other points (SASL, TLS, ...) | |
| 165 | |
| 166 -- ...and we need to handle data | |
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167 -- ...and record all sessions associated with connections |
