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core/modulemanager.lua @ 198:e4755408d40b
Fix for previous commit (again)
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Sun, 02 Nov 2008 01:30:36 +0000 |
| parent | 197:19c57a24afa1 |
| child | 218:1263896ab2f1 |
| rev | line source |
|---|---|
| 30 | 1 |
| 2 local log = require "util.logger".init("modulemanager") | |
| 3 | |
| 4 local loadfile, pcall = loadfile, pcall; | |
| 5 local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv; | |
| 6 local pairs, ipairs = pairs, ipairs; | |
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7 local t_insert = table.insert; |
| 30 | 8 local type = type; |
| 9 | |
| 10 local tostring, print = tostring, print; | |
| 11 | |
| 12 local _G = _G; | |
| 13 | |
| 14 module "modulemanager" | |
| 15 | |
| 16 local handler_info = {}; | |
| 17 local handlers = {}; | |
| 18 | |
| 19 local modulehelpers = setmetatable({}, { __index = _G }); | |
| 20 | |
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21 local function _add_iq_handler(module, origin_type, xmlns, handler) |
| 30 | 22 handlers[origin_type] = handlers[origin_type] or {}; |
| 23 handlers[origin_type].iq = handlers[origin_type].iq or {}; | |
| 24 if not handlers[origin_type].iq[xmlns] then | |
| 25 handlers[origin_type].iq[xmlns]= handler; | |
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26 handler_info[handler] = module; |
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27 log("debug", "mod_%s now handles tag 'iq' with query namespace '%s'", module.name, xmlns); |
| 30 | 28 else |
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29 log("warning", "mod_%s wants to handle tag 'iq' with query namespace '%s' but mod_%s already handles that", module.name, xmlns, handler_info[handlers[origin_type].iq[xmlns]].module.name); |
| 30 | 30 end |
| 31 end | |
| 32 | |
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33 function modulehelpers.add_iq_handler(origin_type, xmlns, handler) |
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34 if not (origin_type and handler and xmlns) then return false; end |
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35 if type(origin_type) == "table" then |
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36 for _, origin_type in ipairs(origin_type) do |
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37 _add_iq_handler(getfenv(2).module, origin_type, xmlns, handler); |
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38 end |
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39 return; |
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40 end |
| 197 | 41 _add_iq_handler(getfenv(2).module, origin_type, xmlns, handler); |
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42 end |
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43 |
| 191 | 44 local function _add_handler(module, origin_type, tag, xmlns, handler) |
| 38 | 45 handlers[origin_type] = handlers[origin_type] or {}; |
| 46 if not handlers[origin_type][tag] then | |
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47 handlers[origin_type][tag] = handlers[origin_type][tag] or {}; |
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48 handlers[origin_type][tag][xmlns]= handler; |
| 191 | 49 handler_info[handler] = module; |
| 50 log("debug", "mod_%s now handles tag '%s'", module.name, tag); | |
| 38 | 51 elseif handler_info[handlers[origin_type][tag]] then |
| 191 | 52 log("warning", "mod_%s wants to handle tag '%s' but mod_%s already handles that", module.name, tag, handler_info[handlers[origin_type][tag]].module.name); |
| 38 | 53 end |
| 30 | 54 end |
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55 |
| 191 | 56 function modulehelpers.add_handler(origin_type, tag, xmlns, handler) |
| 57 if not (origin_type and tag and xmlns and handler) then return false; end | |
| 58 if type(origin_type) == "table" then | |
| 59 for _, origin_type in ipairs(origin_type) do | |
| 60 _add_handler(getfenv(2).module, origin_type, tag, xmlns, handler); | |
| 61 end | |
| 62 return; | |
| 63 end | |
| 64 _add_handler(getfenv(2).module, origin_type, tag, xmlns, handler); | |
| 65 end | |
| 66 | |
| 30 | 67 function loadall() |
| 38 | 68 load("saslauth"); |
| 30 | 69 load("legacyauth"); |
| 70 load("roster"); | |
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71 load("register"); |
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72 load("tls"); |
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73 load("vcard"); |
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74 load("private"); |
| 188 | 75 load("version"); |
| 191 | 76 load("dialback"); |
| 30 | 77 end |
| 78 | |
| 79 function load(name) | |
| 80 local mod, err = loadfile("plugins/mod_"..name..".lua"); | |
| 81 if not mod then | |
| 82 log("error", "Unable to load module '%s': %s", name or "nil", err or "nil"); | |
| 83 return; | |
| 84 end | |
| 85 | |
| 86 local pluginenv = setmetatable({ module = { name = name } }, { __index = modulehelpers }); | |
| 87 | |
| 88 setfenv(mod, pluginenv); | |
| 89 local success, ret = pcall(mod); | |
| 90 if not success then | |
| 91 log("error", "Error initialising module '%s': %s", name or "nil", ret or "nil"); | |
| 92 return; | |
| 93 end | |
| 94 end | |
| 95 | |
| 96 function handle_stanza(origin, stanza) | |
| 38 | 97 local name, xmlns, origin_type = stanza.name, stanza.attr.xmlns, origin.type; |
| 30 | 98 |
| 38 | 99 if name == "iq" and xmlns == "jabber:client" and handlers[origin_type] then |
| 30 | 100 log("debug", "Stanza is an <iq/>"); |
| 101 local child = stanza.tags[1]; | |
| 102 if child then | |
| 103 local xmlns = child.attr.xmlns; | |
| 104 log("debug", "Stanza has xmlns: %s", xmlns); | |
| 105 local handler = handlers[origin_type][name][xmlns]; | |
| 106 if handler then | |
| 107 log("debug", "Passing stanza to mod_%s", handler_info[handler].name); | |
| 108 return handler(origin, stanza) or true; | |
| 109 end | |
| 110 | |
| 111 end | |
| 38 | 112 elseif handlers[origin_type] then |
| 113 local handler = handlers[origin_type][name]; | |
| 114 if handler then | |
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115 handler = handler[xmlns]; |
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116 if handler then |
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117 log("debug", "Passing stanza to mod_%s", handler_info[handler].name); |
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118 return handler(origin, stanza) or true; |
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119 end |
| 38 | 120 end |
| 30 | 121 end |
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122 log("debug", "Stanza unhandled by any modules, xmlns: %s", stanza.attr.xmlns); |
| 30 | 123 return false; -- we didn't handle it |
| 124 end | |
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125 |
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126 do |
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127 local event_handlers = {}; |
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128 |
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129 function modulehelpers.add_event_hook(name, handler) |
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130 if not event_handlers[name] then |
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131 event_handlers[name] = {}; |
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132 end |
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133 t_insert(event_handlers[name] , handler); |
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134 end |
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135 |
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136 function fire_event(name, ...) |
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137 local event_handlers = event_handlers[name]; |
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138 if event_handlers then |
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139 for name, handler in ipairs(event_handlers) do |
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140 handler(...); |
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141 end |
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142 end |
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143 end |
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144 end |
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145 |
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146 return _M; |
