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Let modules set/write globals
0 | 1 | require "luarocks.require" |
2 | ||
12 | 3 | server = require "net.server" |
0 | 4 | require "socket" |
5 | require "ssl" | |
6 | require "lxp" | |
7 | ||
8 | function log(type, area, message) | |
9 | print(type, area, message); | |
10 | end | |
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11 | |
0 | 12 | require "core.stanza_dispatch" |
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13 | require "core.xmlhandlers" |
0 | 14 | require "core.rostermanager" |
15 | require "core.offlinemessage" | |
30 | 16 | require "core.modulemanager" |
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17 | require "core.usermanager" |
30 | 18 | require "core.sessionmanager" |
19 | require "core.stanza_router" | |
0 | 20 | require "util.stanza" |
21 | require "util.jid" | |
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22 | |
0 | 23 | -- Locals for faster access -- |
24 | local t_insert = table.insert; | |
25 | local t_concat = table.concat; | |
26 | 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 | |
27 | local m_random = math.random; | |
28 | local format = string.format; | |
29 | local st = stanza; | |
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30 | local init_xmlhandlers = xmlhandlers.init_xmlhandlers; |
0 | 31 | ------------------------------ |
32 | ||
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33 | sessions = {}; |
0 | 34 | hosts = { |
35 | ["localhost"] = { | |
36 | type = "local"; | |
37 | connected = true; | |
38 | sessions = {}; | |
39 | }; | |
40 | ["getjabber.ath.cx"] = { | |
41 | type = "local"; | |
42 | connected = true; | |
43 | sessions = {}; | |
44 | }; | |
45 | } | |
46 | ||
47 | local hosts, users = hosts, users; | |
48 | ||
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49 | local ssl_ctx = { mode = "server", protocol = "sslv23", key = "/home/matthew/ssl_cert/server.key", |
0 | 50 | certificate = "/home/matthew/ssl_cert/server.crt", capath = "/etc/ssl/certs", verify = "none", } |
51 | ||
52 | ||
53 | function connect_host(host) | |
54 | hosts[host] = { type = "remote", sendbuffer = {} }; | |
55 | end | |
56 | ||
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57 | local function route_stanza(stanza) |
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58 | if not stanza.attr.to then |
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59 | -- Has no 'to' attribute, handle internally |
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60 | end |
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61 | local node, host, resource = jid.split(stanza.attr.to); |
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62 | if host and hosts[host] and hosts[host].type == "local" then |
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63 | -- Is a local host, handle internally |
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64 | |
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65 | else |
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66 | -- Is not for us or a local user, route accordingly |
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67 | end |
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68 | end |
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69 | |
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70 | local function send_to(session, to, stanza) |
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71 | local node, host, resource = jid.split(to); |
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72 | if not hosts[host] then |
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73 | -- s2s |
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74 | elseif hosts[host].type == "local" then |
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75 | print(" ...is to a local user") |
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76 | local destuser = hosts[host].sessions[node]; |
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77 | if destuser and destuser.sessions then |
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78 | if not destuser.sessions[resource] then |
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79 | local best_session; |
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80 | for resource, session in pairs(destuser.sessions) do |
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81 | if not best_session then best_session = session; |
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82 | elseif session.priority >= best_session.priority and session.priority >= 0 then |
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83 | best_session = session; |
0 | 84 | end |
85 | end | |
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86 | if not best_session then |
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87 | offlinemessage.new(node, host, stanza); |
0 | 88 | else |
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89 | print("resource '"..resource.."' was not online, have chosen to send to '"..best_session.username.."@"..best_session.host.."/"..best_session.resource.."'"); |
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90 | resource = best_session.resource; |
0 | 91 | end |
92 | end | |
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93 | if destuser.sessions[resource] == session then |
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94 | log("warn", "core", "Attempt to send stanza to self, dropping..."); |
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95 | else |
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96 | print("...sending...", tostring(stanza)); |
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97 | --destuser.sessions[resource].conn.write(tostring(data)); |
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98 | print(" to conn ", destuser.sessions[resource].conn); |
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99 | destuser.sessions[resource].conn.write(tostring(stanza)); |
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100 | print("...sent") |
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101 | end |
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102 | elseif stanza.name == "message" then |
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103 | print(" ...will be stored offline"); |
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104 | offlinemessage.new(node, host, stanza); |
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105 | elseif stanza.name == "iq" then |
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106 | print(" ...is an iq"); |
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107 | session.send(st.reply(stanza) |
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108 | :tag("error", { type = "cancel" }) |
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109 | :tag("service-unavailable", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" })); |
0 | 110 | end |
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111 | print(" ...done routing"); |
0 | 112 | end |
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113 | end |
0 | 114 | |
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115 | function handler(conn, data, err) |
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116 | local session = sessions[conn]; |
7 | 117 | |
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118 | if not session then |
30 | 119 | sessions[conn] = sessionmanager.new_session(conn); |
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120 | session = sessions[conn]; |
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121 | |
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122 | -- Logging functions -- |
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123 | |
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124 | local mainlog, log = log; |
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125 | do |
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126 | local conn_name = tostring(conn):match("%w+$"); |
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127 | log = function (type, area, message) mainlog(type, conn_name, message); end |
7 | 128 | --log = function () end |
0 | 129 | end |
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130 | local print = function (...) log("info", "core", t_concatall({...}, "\t")); end |
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131 | session.log = log; |
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132 | |
7 | 133 | print("Client connected"); |
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134 | |
30 | 135 | session.stanza_dispatch = function (stanza) return core_process_stanza(session, stanza); end |
7 | 136 | session.xml_handlers = init_xmlhandlers(session); |
137 | session.parser = lxp.new(session.xml_handlers, ":"); | |
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138 | |
7 | 139 | function session.disconnect(err) |
140 | if session.last_presence and session.last_presence.attr.type ~= "unavailable" then | |
141 | local pres = st.presence{ type = "unavailable" }; | |
142 | if err == "closed" then err = "connection closed"; end | |
143 | pres:tag("status"):text("Disconnected: "..err); | |
144 | session.stanza_dispatch(pres); | |
145 | end | |
146 | if session.username then | |
2 | 147 | hosts[session.host].sessions[session.username] = nil; |
0 | 148 | end |
7 | 149 | session = nil; |
150 | print("Disconnected: "..err); | |
151 | collectgarbage("collect"); | |
0 | 152 | end |
7 | 153 | end |
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154 | if data then |
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155 | session.parser:parse(data); |
0 | 156 | end |
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157 | |
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158 | --log("info", "core", "Client disconnected, connection closed"); |
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159 | end |
0 | 160 | |
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161 | function disconnect(conn, err) |
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162 | sessions[conn].disconnect(err); |
0 | 163 | end |
164 | ||
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165 | modulemanager.loadall(); |
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166 | |
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167 | setmetatable(_G, { __index = function (t, k) print("WARNING: ATTEMPT TO READ A NIL GLOBAL!!!", k); error("Attempt to read a non-existent global. Naughty boy.", 2); end, __newindex = function (t, k, v) print("ATTEMPT TO SET A GLOBAL!!!!", tostring(k).." = "..tostring(v)); error("Attempt to set a global. Naughty boy.", 2); end }) --]][][[]][]; |
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168 | |
0 | 169 | |
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170 | local protected_handler = function (conn, data, err) local success, ret = pcall(handler, conn, data, err); if not success then print("ERROR on "..tostring(conn)..": "..ret); conn:close(); end end; |
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171 | local protected_disconnect = function (conn, err) local success, ret = pcall(disconnect, conn, err); if not success then print("ERROR on "..tostring(conn).." disconnect: "..ret); conn:close(); end end; |
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172 | |
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173 | server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5222, "*", 1, nil ) -- server.add will send a status message |
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174 | server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5223, "*", 1, ssl_ctx ) -- server.add will send a status message |
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175 | |
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176 | server.loop(); |