prosody
6b6b8f4ab7e3
core/sessionmanager.lua

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core/sessionmanager.lua @ 125:6b6b8f4ab7e3

even faster checking for other sessions... thank you waqas :)
author Matthew Wild <mwild1@gmail.com>
date Thu, 23 Oct 2008 17:34:10 +0100
parent 124:7fee6b63abca
child 126:63863534b1f1
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2 local tonumber, tostring = tonumber, tostring;
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3 local ipairs, pairs, print= ipairs, pairs, print;
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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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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".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("info", "Destroying session");
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38 if session.username then
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39 if session.resource then
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40 hosts[session.host].sessions[session.username].sessions[session.resource] = nil;
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41 end
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42 if not next(hosts[session.host].sessions[session.username], nil) then
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43 hosts[session.host].sessions[session.username] = nil;
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44 end
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45 end
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46 session.conn = nil;
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47 session.disconnect = nil;
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48 for k in pairs(session) do
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49 if k ~= "trace" then
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50 session[k] = nil;
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51 end
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52 end
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53 end
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55 function send_to_session(session, data)
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56 log("debug", "Sending: %s", tostring(data));
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57 session.conn.write(tostring(data));
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58 end
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59
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60 function make_authenticated(session, username)
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61 session.username = username;
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62 if session.type == "c2s_unauthed" then
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63 session.type = "c2s";
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64 end
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65 return true;
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66 end
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67
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68 function bind_resource(session, resource)
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69 if not session.username then return false, "auth"; end
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70 if session.resource then return false, "constraint"; end -- We don't support binding multiple resources
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71 resource = resource or uuid_generate();
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72 --FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing
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73
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74 if not hosts[session.host].sessions[session.username] then
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75 hosts[session.host].sessions[session.username] = { sessions = {} };
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76 else
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77 if hosts[session.host].sessions[session.username].sessions[resource] then
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78 -- Resource conflict
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79 return false, "conflict"; -- TODO kick old resource
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80 end
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81 end
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83 session.resource = resource;
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84 session.full_jid = session.username .. '@' .. session.host .. '/' .. resource;
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85 hosts[session.host].sessions[session.username].sessions[resource] = session;
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86
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87 session.roster = rm_load_roster(session.username, session.host);
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88
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89 return true;
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90 end
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91
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92 function streamopened(session, attr)
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93 local send = session.send;
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94 session.host = attr.to or error("Client failed to specify destination hostname");
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95 session.version = tonumber(attr.version) or 0;
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96 session.streamid = m_random(1000000, 99999999);
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97 print(session, session.host, "Client opened stream");
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98 send("<?xml version='1.0'?>");
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99 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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100
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101 local features = {};
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102 modulemanager.fire_event("stream-features", session, features);
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103
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104 send("<stream:features>");
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105
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106 for _, feature in ipairs(features) do
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107 send_to_session(session, tostring(feature));
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108 end
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109
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110 send("</stream:features>");
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111 log("info", "Stream opened successfully");
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112 session.notopen = nil;
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113 end
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114
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115 return _M;