prosody
830fd67f9378
core/sessionmanager.lua

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core/sessionmanager.lua @ 331:830fd67f9378

Quite some changes, to: - Small logging fix for s2smanager - Send a stream error if an incoming s2s connection is to an unrecognised hostname (fixes #11) - init_xmlhandlers now takes a table of callbacks (includes changes to net/xmpp*_listener for this) - Move sending of unavailable presence to where it should be, sessionmanager.destroy_session - Fix sending of stream errors to wrong connection
author Matthew Wild <mwild1@gmail.com>
date Tue, 18 Nov 2008 17:52:33 +0000
parent 329:3be63719428e
child 332:51e130b5c8de
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1
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2 local tonumber, tostring = tonumber, tostring;
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3 local ipairs, pairs, print, next= ipairs, pairs, print, next;
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4 local collectgarbage = collectgarbage;
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5 local m_random = import("math", "random");
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6 local format = import("string", "format");
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7
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8 local hosts = hosts;
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9 local sessions = sessions;
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10
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11 local modulemanager = require "core.modulemanager";
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12 local log = require "util.logger".init("sessionmanager");
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13 local error = error;
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14 local uuid_generate = require "util.uuid".generate;
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15 local rm_load_roster = require "core.rostermanager".load_roster;
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17 local newproxy = newproxy;
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18 local getmetatable = getmetatable;
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20 module "sessionmanager"
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22 local open_sessions = 0;
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24 function new_session(conn)
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25 local session = { conn = conn, priority = 0, type = "c2s_unauthed" };
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26 if true then
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27 session.trace = newproxy(true);
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28 getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; print("Session got collected, now "..open_sessions.." sessions are allocated") end;
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29 end
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30 open_sessions = open_sessions + 1;
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31 local w = conn.write;
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32 session.send = function (t) w(tostring(t)); end
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33 return session;
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34 end
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36 function destroy_session(session)
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37 (session.log or log)("info", "Destroying session");
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39 -- Send unavailable presence
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40 if session.presence and session.presence.attr.type ~= "unavailable" then
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41 local pres = st.presence{ type = "unavailable" };
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42 if err == "closed" then err = "connection closed"; end
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43 pres:tag("status"):text("Disconnected: "..err);
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44 session.stanza_dispatch(pres);
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45 end
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46
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47 -- Remove session/resource from user's session list
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48 if session.host and session.username then
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49 if session.resource then
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50 hosts[session.host].sessions[session.username].sessions[session.resource] = nil;
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51 end
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52 if hosts[session.host] and hosts[session.host].sessions[session.username] then
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53 if not next(hosts[session.host].sessions[session.username].sessions) then
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54 log("debug", "All resources of %s are now offline", session.username);
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55 hosts[session.host].sessions[session.username] = nil;
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56 end
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57 end
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58 end
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60 for k in pairs(session) do
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61 if k ~= "trace" then
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62 session[k] = nil;
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63 end
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64 end
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65 end
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66
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67 function make_authenticated(session, username)
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68 session.username = username;
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69 if session.type == "c2s_unauthed" then
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70 session.type = "c2s";
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71 end
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72 return true;
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73 end
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74
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75 -- returns true, nil on success
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76 -- returns nil, err_type, err, err_message on failure
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77 function bind_resource(session, resource)
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78 if not session.username then return nil, "auth", "not-authorized", "Cannot bind resource before authentication"; end
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79 if session.resource then return nil, "cancel", "already-bound", "Cannot bind multiple resources on a single connection"; end
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80 -- We don't support binding multiple resources
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81
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82 resource = resource or uuid_generate();
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83 --FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing
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84
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85 if not hosts[session.host].sessions[session.username] then
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86 hosts[session.host].sessions[session.username] = { sessions = {} };
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87 else
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88 if hosts[session.host].sessions[session.username].sessions[resource] then
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89 -- Resource conflict
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90 return nil, "cancel", "conflict", "Resource already exists"; -- TODO kick old resource
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91 end
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92 end
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93
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94 session.resource = resource;
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95 session.full_jid = session.username .. '@' .. session.host .. '/' .. resource;
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96 hosts[session.host].sessions[session.username].sessions[resource] = session;
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97
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98 session.roster = rm_load_roster(session.username, session.host);
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99
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100 return true;
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101 end
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102
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103 function streamopened(session, attr)
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104 local send = session.send;
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105 session.host = attr.to or error("Client failed to specify destination hostname");
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106 session.version = tonumber(attr.version) or 0;
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107 session.streamid = m_random(1000000, 99999999);
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108 (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
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111 send("<?xml version='1.0'?>");
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112 send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0'>", session.streamid, session.host));
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113
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114 if not hosts[session.host] then
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115 -- We don't serve this host...
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116 session:disconnect{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)};
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117 return;
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118 end
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120
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121 local features = {};
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122 modulemanager.fire_event("stream-features", session, features);
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123
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124 -- FIXME: Need to send() this all at once
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125 send("<stream:features>");
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126
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127 for _, feature in ipairs(features) do
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128 send(tostring(feature));
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129 end
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130
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131 send("</stream:features>");
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132 log("info", "Stream opened successfully");
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133 session.notopen = nil;
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134 end
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135
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136 function send_to_available_resources(user, host, stanza)
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137 local count = 0;
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138 local to = stanza.attr.to;
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139 stanza.attr.to = nil;
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140 local h = hosts[host];
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141 if h and h.type == "local" then
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142 local u = h.sessions[user];
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143 if u then
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144 for k, session in pairs(u.sessions) do
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145 if session.presence then
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146 session.send(stanza);
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147 count = count + 1;
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148 end
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149 end
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150 end
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151 end
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152 stanza.attr.to = to;
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153 return count;
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154 end
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155
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bcf539295f2d Huge commit to:
Matthew Wild <mwild1@gmail.com>
parents:
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156 return _M;