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core/componentmanager.lua @ 1705:99c9f59ed365
componentmanager: Removed disco#items hook, and reference to core.discomanager
author | Waqas Hussain <waqas20@gmail.com> |
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date | Tue, 18 Aug 2009 12:47:37 +0500 |
parent | 1693:56e23b0b3893 |
child | 1772:c0ba9cd6ee63 |
rev | line source |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2009 Matthew Wild |
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3 -- Copyright (C) 2008-2009 Waqas Hussain |
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4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
6 -- COPYING file in the source package for more information. | |
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7 -- |
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8 |
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9 local prosody = prosody; |
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10 local log = require "util.logger".init("componentmanager"); |
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11 local configmanager = require "core.configmanager"; |
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12 local modulemanager = require "core.modulemanager"; |
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13 local core_route_stanza = core_route_stanza; |
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14 local jid_split = require "util.jid".split; |
1188 | 15 local events_new = require "util.events".new; |
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16 local st = require "util.stanza"; |
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17 local hosts = hosts; |
1442 | 18 local serialize = require "util.serialization".serialize |
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19 |
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20 local pairs, type, tostring = pairs, type, tostring; |
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21 |
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22 local components = {}; |
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23 |
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24 local disco_items = require "util.multitable".new(); |
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25 local NULL = {}; |
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26 |
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27 prosody.events.add_handler("server-starting", function () core_route_stanza = _G.core_route_stanza; end); |
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28 |
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29 module "componentmanager" |
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30 |
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31 local function default_component_handler(origin, stanza) |
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32 log("warn", "Stanza being handled by default component, bouncing error"); |
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33 if stanza.attr.type ~= "error" then |
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34 core_route_stanza(nil, st.error_reply(stanza, "wait", "service-unavailable", "Component unavailable")); |
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35 end |
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36 end |
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37 |
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38 local components_loaded_once; |
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39 function load_enabled_components(config) |
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40 local defined_hosts = config or configmanager.getconfig(); |
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41 |
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42 for host, host_config in pairs(defined_hosts) do |
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43 if host ~= "*" and ((host_config.core.enabled == nil or host_config.core.enabled) and type(host_config.core.component_module) == "string") then |
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44 hosts[host] = { type = "component", host = host, connected = false, s2sout = {}, events = events_new() }; |
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45 components[host] = default_component_handler; |
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46 local ok, err = modulemanager.load(host, host_config.core.component_module); |
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47 if not ok then |
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48 log("error", "Error loading %s component %s: %s", tostring(host_config.core.component_module), tostring(host), tostring(err)); |
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49 else |
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50 log("debug", "Activated %s component: %s", host_config.core.component_module, host); |
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51 end |
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52 end |
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53 end |
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54 end |
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55 |
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56 prosody.events.add_handler("server-starting", load_enabled_components); |
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57 |
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58 function handle_stanza(origin, stanza) |
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59 local node, host = jid_split(stanza.attr.to); |
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60 local component = nil; |
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61 if host then |
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62 if node then component = components[node.."@"..host]; end -- hack to allow hooking node@server |
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63 if not component then component = components[host]; end |
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64 end |
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65 if component then |
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66 log("debug", "%s stanza being handled by component: %s", stanza.name, host); |
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67 component(origin, stanza, hosts[host]); |
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68 else |
1442 | 69 log("error", "Component manager recieved a stanza for a non-existing component: " .. (stanza.attr.to or serialize(stanza))); |
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70 end |
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71 end |
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72 |
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73 function create_component(host, component) |
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74 -- TODO check for host well-formedness |
1188 | 75 return { type = "component", host = host, connected = true, s2sout = {}, events = events_new() }; |
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76 end |
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77 |
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78 function register_component(host, component, session) |
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79 if not hosts[host] or (hosts[host].type == 'component' and not hosts[host].connected) then |
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80 local old_events = hosts[host] and hosts[host].events; |
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81 |
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82 components[host] = component; |
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83 hosts[host] = session or create_component(host, component); |
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84 |
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85 -- Add events object if not already one |
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86 if not hosts[host].events then |
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87 hosts[host].events = old_events or events_new(); |
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88 end |
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89 |
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90 -- add to disco_items |
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91 if not(host:find("@", 1, true) or host:find("/", 1, true)) and host:find(".", 1, true) then |
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92 disco_items:set(host:sub(host:find(".", 1, true)+1), host, true); |
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93 end |
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94 -- FIXME only load for a.b.c if b.c has dialback, and/or check in config |
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95 modulemanager.load(host, "dialback"); |
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96 log("debug", "component added: "..host); |
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97 return session or hosts[host]; |
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98 else |
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99 log("error", "Attempt to set component for existing host: "..host); |
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100 end |
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101 end |
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102 |
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103 function deregister_component(host) |
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104 if components[host] then |
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105 modulemanager.unload(host, "dialback"); |
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106 hosts[host].connected = nil; |
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107 local host_config = configmanager.getconfig()[host]; |
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108 if host_config and ((host_config.core.enabled == nil or host_config.core.enabled) and type(host_config.core.component_module) == "string") then |
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109 -- Set default handler |
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110 components[host] = default_component_handler; |
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111 else |
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112 -- Component not in config, or disabled, remove |
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113 hosts[host] = nil; |
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114 components[host] = nil; |
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115 end |
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116 -- remove from disco_items |
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117 if not(host:find("@", 1, true) or host:find("/", 1, true)) and host:find(".", 1, true) then |
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118 disco_items:remove(host:sub(host:find(".", 1, true)+1), host); |
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119 end |
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120 log("debug", "component removed: "..host); |
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121 return true; |
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122 else |
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123 log("error", "Attempt to remove component for non-existing host: "..host); |
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124 end |
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125 end |
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126 |
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127 function set_component_handler(host, handler) |
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128 components[host] = handler; |
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129 end |
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130 |
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131 function get_children(host) |
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132 return disco_items:get(host) or NULL; |
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133 end |
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134 |
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135 return _M; |