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Comment out remote debug, will later be enabled via config
30 | 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"); |
38 | 7 | |
8 | local hosts = hosts; | |
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9 | local sessions = sessions; |
38 | 10 | |
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11 | local modulemanager = require "core.modulemanager"; |
30 | 12 | local log = require "util.logger".init("sessionmanager"); |
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13 | local error = error; |
145 | 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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16 | |
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17 | local st = require "util.stanza"; |
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18 | |
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19 | local newproxy = newproxy; |
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20 | local getmetatable = getmetatable; |
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21 | |
30 | 22 | module "sessionmanager" |
23 | ||
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24 | local open_sessions = 0; |
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25 | |
30 | 26 | function new_session(conn) |
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27 | local session = { conn = conn, priority = 0, type = "c2s_unauthed" }; |
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28 | if true then |
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29 | session.trace = newproxy(true); |
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30 | 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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31 | end |
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32 | open_sessions = open_sessions + 1; |
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33 | log("info", "open sessions now: ".. open_sessions); |
30 | 34 | local w = conn.write; |
35 | session.send = function (t) w(tostring(t)); end | |
36 | return session; | |
37 | end | |
38 | ||
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39 | function destroy_session(session, err) |
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40 | (session.log or log)("info", "Destroying session"); |
331 | 41 | |
42 | -- Send unavailable presence | |
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43 | if session.presence then |
331 | 44 | local pres = st.presence{ type = "unavailable" }; |
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45 | if (not err) or err == "closed" then err = "connection closed"; end |
331 | 46 | pres:tag("status"):text("Disconnected: "..err); |
47 | session.stanza_dispatch(pres); | |
48 | end | |
49 | ||
50 | -- Remove session/resource from user's session list | |
148 | 51 | if session.host and session.username then |
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52 | if session.resource then |
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53 | hosts[session.host].sessions[session.username].sessions[session.resource] = nil; |
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54 | end |
148 | 55 | if hosts[session.host] and hosts[session.host].sessions[session.username] then |
56 | if not next(hosts[session.host].sessions[session.username].sessions) then | |
57 | log("debug", "All resources of %s are now offline", session.username); | |
58 | hosts[session.host].sessions[session.username] = nil; | |
59 | end | |
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60 | end |
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61 | end |
331 | 62 | |
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63 | for k in pairs(session) do |
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64 | if k ~= "trace" then |
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65 | session[k] = nil; |
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66 | end |
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67 | end |
38 | 68 | end |
69 | ||
70 | function make_authenticated(session, username) | |
71 | session.username = username; | |
72 | if session.type == "c2s_unauthed" then | |
73 | session.type = "c2s"; | |
74 | end | |
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75 | return true; |
38 | 76 | end |
77 | ||
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78 | -- returns true, nil on success |
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79 | -- returns nil, err_type, err, err_message on failure |
38 | 80 | function bind_resource(session, resource) |
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81 | if not session.username then return nil, "auth", "not-authorized", "Cannot bind resource before authentication"; end |
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82 | if session.resource then return nil, "cancel", "already-bound", "Cannot bind multiple resources on a single connection"; end |
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83 | -- We don't support binding multiple resources |
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84 | |
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85 | resource = resource or uuid_generate(); |
38 | 86 | --FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing |
87 | ||
88 | if not hosts[session.host].sessions[session.username] then | |
89 | hosts[session.host].sessions[session.username] = { sessions = {} }; | |
90 | else | |
91 | if hosts[session.host].sessions[session.username].sessions[resource] then | |
92 | -- Resource conflict | |
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93 | return nil, "cancel", "conflict", "Resource already exists"; -- TODO kick old resource |
38 | 94 | end |
95 | end | |
96 | ||
97 | session.resource = resource; | |
98 | session.full_jid = session.username .. '@' .. session.host .. '/' .. resource; | |
99 | hosts[session.host].sessions[session.username].sessions[resource] = session; | |
100 | ||
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101 | session.roster = rm_load_roster(session.username, session.host); |
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102 | |
38 | 103 | return true; |
104 | end | |
105 | ||
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106 | function streamopened(session, attr) |
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107 | local send = session.send; |
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108 | session.host = attr.to or error("Client failed to specify destination hostname"); |
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109 | session.version = tonumber(attr.version) or 0; |
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110 | session.streamid = m_random(1000000, 99999999); |
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111 | (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host); |
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112 | |
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113 | |
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114 | send("<?xml version='1.0'?>"); |
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115 | 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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116 | |
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117 | if not hosts[session.host] then |
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118 | -- We don't serve this host... |
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119 | session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)}; |
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120 | return; |
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121 | end |
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122 | |
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123 | |
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124 | local features = st.stanza("stream:features"); |
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125 | modulemanager.fire_event("stream-features", session, features); |
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126 | |
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127 | send(features); |
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128 | |
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129 | (session.log or log)("info", "Sent reply <stream:stream> to client"); |
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130 | session.notopen = nil; |
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131 | end |
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132 | |
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133 | function send_to_available_resources(user, host, stanza) |
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134 | local count = 0; |
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135 | local to = stanza.attr.to; |
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136 | stanza.attr.to = nil; |
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137 | local h = hosts[host]; |
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138 | if h and h.type == "local" then |
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139 | local u = h.sessions[user]; |
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140 | if u then |
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141 | for k, session in pairs(u.sessions) do |
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142 | if session.presence then |
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143 | session.send(stanza); |
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144 | count = count + 1; |
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145 | end |
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146 | end |
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147 | end |
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148 | end |
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149 | stanza.attr.to = to; |
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150 | return count; |
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151 | end |
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152 | |
30 | 153 | return _M; |