Sun, 23 Nov 2008 04:54:05 +0000
Comment out remote debug, will later be enabled via config
148 | 1 | |
2 | local logger = require "logger"; | |
3 | local lxp = require "lxp" | |
4 | local init_xmlhandlers = require "core.xmlhandlers" | |
5 | local sm_new_session = require "core.sessionmanager".new_session; | |
6 | local s2s_new_incoming = require "core.s2smanager".new_incoming; | |
7 | local s2s_streamopened = require "core.s2smanager".streamopened; | |
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8 | local s2s_streamclosed = require "core.s2smanager".streamclosed; |
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9 | local s2s_destroy_session = require "core.s2smanager".destroy_session; |
148 | 10 | |
331 | 11 | local stream_callbacks = { streamopened = s2s_streamopened, streamclosed = s2s_streamclosed }; |
12 | ||
148 | 13 | local connlisteners_register = require "net.connlisteners".register; |
14 | ||
15 | local t_insert = table.insert; | |
16 | local t_concat = table.concat; | |
17 | 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 | |
18 | local m_random = math.random; | |
19 | local format = string.format; | |
20 | local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; --import("core.sessionmanager", "new_session", "destroy_session"); | |
21 | local st = stanza; | |
22 | ||
23 | local sessions = {}; | |
24 | local xmppserver = { default_port = 5269 }; | |
25 | ||
26 | -- These are session methods -- | |
27 | ||
28 | local function session_reset_stream(session) | |
29 | -- Reset stream | |
331 | 30 | local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); |
148 | 31 | session.parser = parser; |
32 | ||
33 | session.notopen = true; | |
34 | ||
35 | function session.data(conn, data) | |
36 | parser:parse(data); | |
37 | end | |
38 | return true; | |
39 | end | |
40 | ||
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41 | |
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42 | local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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43 | local function session_close(session, reason) |
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44 | local log = session.log or log; |
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45 | if session.conn then |
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46 | if reason then |
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47 | if type(reason) == "string" then -- assume stream error |
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48 | log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason); |
331 | 49 | session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); |
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50 | elseif type(reason) == "table" then |
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51 | if reason.condition then |
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52 | local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); |
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53 | if reason.text then |
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54 | stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); |
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55 | end |
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56 | if reason.extra then |
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57 | stanza:add_child(reason.extra); |
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58 | end |
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59 | log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); |
331 | 60 | session.sends2s(stanza); |
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61 | elseif reason.name then -- a stanza |
331 | 62 | 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)); |
63 | session.sends2s(reason); | |
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64 | end |
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65 | end |
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66 | end |
331 | 67 | session.sends2s("</stream:stream>"); |
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68 | session.conn.close(); |
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69 | xmppserver.disconnect(session.conn, "stream error"); |
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70 | end |
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71 | end |
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72 | |
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73 | |
148 | 74 | -- End of session methods -- |
75 | ||
76 | function xmppserver.listener(conn, data) | |
77 | local session = sessions[conn]; | |
78 | if not session then | |
79 | session = s2s_new_incoming(conn); | |
80 | sessions[conn] = session; | |
81 | ||
82 | -- Logging functions -- | |
83 | ||
84 | local mainlog, log = log; | |
85 | do | |
86 | local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); | |
87 | log = logger.init(conn_name); | |
88 | end | |
89 | local print = function (...) log("info", t_concatall({...}, "\t")); end | |
90 | session.log = log; | |
91 | ||
92 | print("Incoming s2s connection"); | |
93 | ||
94 | session.reset_stream = session_reset_stream; | |
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95 | session.close = session_close; |
148 | 96 | |
97 | session_reset_stream(session); -- Initialise, ready for use | |
98 | ||
99 | -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call, | |
100 | -- this will avoid the useless indirection we have atm | |
101 | -- (I'm on a mission, no time to fix now) | |
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102 | |
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103 | -- Debug version -- |
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104 | local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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105 | session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
148 | 106 | end |
107 | if data then | |
108 | session.data(conn, data); | |
109 | end | |
110 | end | |
111 | ||
112 | function xmppserver.disconnect(conn) | |
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113 | local session = sessions[conn]; |
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114 | if session then |
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115 | (session.log or log)("info", "s2s disconnected: %s->%s", tostring(session.from_host), tostring(session.to_host)); |
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116 | s2s_destroy_session(session); |
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117 | sessions[conn] = nil; |
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118 | session = nil; |
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119 | collectgarbage("collect"); |
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120 | end |
148 | 121 | end |
122 | ||
123 | function xmppserver.register_outgoing(conn, session) | |
124 | session.direction = "outgoing"; | |
125 | sessions[conn] = session; | |
126 | ||
127 | session.reset_stream = session_reset_stream; | |
128 | session_reset_stream(session); -- Initialise, ready for use | |
129 | ||
130 | -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call, | |
131 | -- this will avoid the useless indirection we have atm | |
132 | -- (I'm on a mission, no time to fix now) | |
133 | session.stanza_dispatch = function (stanza) return core_process_stanza(session, stanza); end | |
134 | end | |
135 | ||
136 | connlisteners_register("xmppserver", xmppserver); | |
137 | ||
138 | ||
139 | -- We need to perform some initialisation when a connection is created | |
140 | -- We also need to perform that same initialisation at other points (SASL, TLS, ...) | |
141 | ||
142 | -- ...and we need to handle data | |
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143 | -- ...and record all sessions associated with connections |