Mercurial > prosody-hg
annotate net/xmppserver_listener.lua @ 527:98aaa20af6a2
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| author | Matthew Wild <mwild1@gmail.com> |
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| date | Wed, 03 Dec 2008 16:20:58 +0000 |
| parents | cccd610a0ef9 |
| children | 60002993be04 |
| rev | line source |
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1 -- Prosody IM v0.1 |
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2 -- Copyright (C) 2008 Matthew Wild |
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3 -- Copyright (C) 2008 Waqas Hussain |
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4 -- |
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5 -- This program is free software; you can redistribute it and/or |
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6 -- modify it under the terms of the GNU General Public License |
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7 -- as published by the Free Software Foundation; either version 2 |
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8 -- of the License, or (at your option) any later version. |
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9 -- |
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10 -- This program is distributed in the hope that it will be useful, |
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11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 -- GNU General Public License for more details. |
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14 -- |
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15 -- You should have received a copy of the GNU General Public License |
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16 -- along with this program; if not, write to the Free Software |
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17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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18 -- |
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19 |
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20 |
| 148 | 21 |
| 22 local logger = require "logger"; | |
| 23 local lxp = require "lxp" | |
| 24 local init_xmlhandlers = require "core.xmlhandlers" | |
| 25 local sm_new_session = require "core.sessionmanager".new_session; | |
| 26 local s2s_new_incoming = require "core.s2smanager".new_incoming; | |
| 27 local s2s_streamopened = require "core.s2smanager".streamopened; | |
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28 local s2s_streamclosed = require "core.s2smanager".streamclosed; |
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29 local s2s_destroy_session = require "core.s2smanager".destroy_session; |
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30 local s2s_attempt_connect = require "core.s2smanager".attempt_connection; |
| 331 | 31 local stream_callbacks = { streamopened = s2s_streamopened, streamclosed = s2s_streamclosed }; |
| 32 | |
| 148 | 33 local connlisteners_register = require "net.connlisteners".register; |
| 34 | |
| 35 local t_insert = table.insert; | |
| 36 local t_concat = table.concat; | |
| 37 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 | |
| 38 local m_random = math.random; | |
| 39 local format = string.format; | |
| 40 local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; --import("core.sessionmanager", "new_session", "destroy_session"); | |
| 41 local st = stanza; | |
| 42 | |
| 43 local sessions = {}; | |
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44 local xmppserver = { default_port = 5269, default_mode = "*a" }; |
| 148 | 45 |
| 46 -- These are session methods -- | |
| 47 | |
| 48 local function session_reset_stream(session) | |
| 49 -- Reset stream | |
| 331 | 50 local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); |
| 148 | 51 session.parser = parser; |
| 52 | |
| 53 session.notopen = true; | |
| 54 | |
| 55 function session.data(conn, data) | |
| 56 parser:parse(data); | |
| 57 end | |
| 58 return true; | |
| 59 end | |
| 60 | |
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61 |
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62 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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63 local function session_close(session, reason) |
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64 local log = session.log or log; |
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65 if session.conn then |
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66 if reason then |
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67 if type(reason) == "string" then -- assume stream error |
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68 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason); |
| 331 | 69 session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); |
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70 elseif type(reason) == "table" then |
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71 if reason.condition then |
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72 local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); |
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73 if reason.text then |
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74 stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); |
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75 end |
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76 if reason.extra then |
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77 stanza:add_child(reason.extra); |
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78 end |
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79 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); |
| 331 | 80 session.sends2s(stanza); |
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81 elseif reason.name then -- a stanza |
| 331 | 82 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)); |
| 83 session.sends2s(reason); | |
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84 end |
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85 end |
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86 end |
| 331 | 87 session.sends2s("</stream:stream>"); |
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88 session.conn.close(); |
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89 xmppserver.disconnect(session.conn, "stream error"); |
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90 end |
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91 end |
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92 |
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93 |
| 148 | 94 -- End of session methods -- |
| 95 | |
| 96 function xmppserver.listener(conn, data) | |
| 97 local session = sessions[conn]; | |
| 98 if not session then | |
| 99 session = s2s_new_incoming(conn); | |
| 100 sessions[conn] = session; | |
| 101 | |
| 102 -- Logging functions -- | |
| 103 | |
| 104 local mainlog, log = log; | |
| 105 do | |
| 106 local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); | |
| 107 log = logger.init(conn_name); | |
| 108 end | |
| 109 local print = function (...) log("info", t_concatall({...}, "\t")); end | |
| 110 session.log = log; | |
| 111 | |
| 112 print("Incoming s2s connection"); | |
| 113 | |
| 114 session.reset_stream = session_reset_stream; | |
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115 session.close = session_close; |
| 148 | 116 |
| 117 session_reset_stream(session); -- Initialise, ready for use | |
| 118 | |
| 119 -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call, | |
| 120 -- this will avoid the useless indirection we have atm | |
| 121 -- (I'm on a mission, no time to fix now) | |
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122 |
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123 -- Debug version -- |
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124 local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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125 session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
| 148 | 126 end |
| 127 if data then | |
| 128 session.data(conn, data); | |
| 129 end | |
| 130 end | |
| 131 | |
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132 function xmppserver.disconnect(conn, err) |
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133 local session = sessions[conn]; |
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134 if session then |
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135 if err and err ~= "closed" and session.srv_hosts then |
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136 if s2s_attempt_connect(session, err) then |
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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 | |
| 152 session.reset_stream = session_reset_stream; | |
| 153 session_reset_stream(session); -- Initialise, ready for use | |
| 154 | |
| 155 -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call, | |
| 156 -- this will avoid the useless indirection we have atm | |
| 157 -- (I'm on a mission, no time to fix now) | |
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158 local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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159 session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
| 148 | 160 end |
| 161 | |
| 162 connlisteners_register("xmppserver", xmppserver); | |
| 163 | |
| 164 | |
| 165 -- We need to perform some initialisation when a connection is created | |
| 166 -- We also need to perform that same initialisation at other points (SASL, TLS, ...) | |
| 167 | |
| 168 -- ...and we need to handle data | |
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169 -- ...and record all sessions associated with connections |