prosody
3be63719428e
net/xmppclient_listener.lua

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net/xmppclient_listener.lua @ 329:3be63719428e

Allow us to close client connections, with or without a stream error. Partially fixes #8, we still need the same for s2s (though it should be almost a straight copy of the code, I'm too tired atm)
author Matthew Wild <mwild1@gmail.com>
date Tue, 18 Nov 2008 05:13:29 +0000
parent 318:cc20ea4a8697
child 330:d9d4c1de16ce
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1
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2 local logger = require "logger";
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3 local lxp = require "lxp"
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4 local init_xmlhandlers = require "core.xmlhandlers"
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5 local sm_new_session = require "core.sessionmanager".new_session;
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6
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7 local connlisteners_register = require "net.connlisteners".register;
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8
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9 local t_insert = table.insert;
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10 local t_concat = table.concat;
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11 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
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12 local m_random = math.random;
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13 local format = string.format;
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14 local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; --import("core.sessionmanager", "new_session", "destroy_session");
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15 local sm_streamopened = sessionmanager.streamopened;
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16 local st = stanza;
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17
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18 local sessions = {};
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19 local xmppclient = { default_port = 5222 };
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20
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21 -- These are session methods --
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22
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23 local function session_reset_stream(session)
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24 -- Reset stream
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25 local parser = lxp.new(init_xmlhandlers(session, sm_streamopened), "|");
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26 session.parser = parser;
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27
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28 session.notopen = true;
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29
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30 function session.data(conn, data)
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31 parser:parse(data);
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32 end
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33 return true;
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34 end
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35
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36
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37 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'};
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38 local function session_disconnect(session, reason)
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39 local log = session.log or log;
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40 if session.conn then
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41 if reason then
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42 if type(reason) == "string" then -- assume stream error
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43 log("info", "Disconnecting client, <stream:error> is: %s", reason);
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44 session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }));
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45 elseif type(reason) == "table" then
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46 if reason.condition then
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47 local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up();
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48 if reason.text then
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49 stanza:tag("text", stream_xmlns_attr):text(reason.text):up();
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50 end
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51 if reason.extra then
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52 stanza:add_child(reason.extra);
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53 end
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54 log("info", "Disconnecting client, <stream:error> is: %s", tostring(stanza));
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55 session.send(stanza);
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56 elseif reason.name then -- a stanza
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57 log("info", "Disconnecting client, <stream:error> is: %s", tostring(reason));
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58 session.send(reason);
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59 end
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60 end
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61 end
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62 session.send("</stream:stream>");
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63 session.conn.close();
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64 xmppclient.disconnect(session.conn, "stream error");
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65 end
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66 end
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67
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68
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69 -- End of session methods --
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70
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71 function xmppclient.listener(conn, data)
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72 local session = sessions[conn];
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73 if not session then
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74 session = sm_new_session(conn);
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75 sessions[conn] = session;
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76
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77 -- Logging functions --
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78
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79 local mainlog, log = log;
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80 do
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81 local conn_name = tostring(conn):match("[a-f0-9]+$");
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82 log = logger.init(conn_name);
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83 end
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84 local print = function (...) log("info", t_concatall({...}, "\t")); end
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85 session.log = log;
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86
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87 print("Client connected");
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88
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89 session.reset_stream = session_reset_stream;
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90 session.disconnect = session_disconnect;
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91
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92 session_reset_stream(session); -- Initialise, ready for use
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93
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94 -- TODO: Below function should be session,stanza - and xmlhandlers should use :method() notation to call,
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95 -- this will avoid the useless indirection we have atm
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96 -- (I'm on a mission, no time to fix now)
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98 -- Debug version --
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99 local function handleerr(err) print("Traceback:", err, debug.traceback()); end
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100 session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end
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101
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102 -- session.stanza_dispatch = function (stanza) return core_process_stanza(session, stanza); end
99
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103
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104 end
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105 if data then
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106 session.data(conn, data);
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107 end
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108 end
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109
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110 function xmppclient.disconnect(conn, err)
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111 local session = sessions[conn];
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112 if session then
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113 if session.presence and session.presence.attr.type ~= "unavailable" then
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114 local pres = st.presence{ type = "unavailable" };
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115 if err == "closed" then err = "connection closed"; end
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116 pres:tag("status"):text("Disconnected: "..err);
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117 session.stanza_dispatch(pres);
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118 end
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119 (session.log or log)("info", "Client disconnected: %s", err);
123
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120 sm_destroy_session(session);
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121 sessions[conn] = nil;
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122 session = nil;
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123 collectgarbage("collect");
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124 end
99
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125 end
ba08b8a4eeef Abstract connections with "connection listeners"
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
126
ba08b8a4eeef Abstract connections with "connection listeners"
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
127 connlisteners_register("xmppclient", xmppclient);