Wed, 31 Dec 2008 13:52:41 +0500
Send host, and not the recipient's JID to module manager (fixes #53)
615 | 1 | -- Prosody IM v0.2 |
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2 | -- Copyright (C) 2008 Matthew Wild |
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3 | -- Copyright (C) 2008 Waqas Hussain |
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4 | -- |
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5 | -- This program is free software; you can redistribute it and/or |
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6 | -- modify it under the terms of the GNU General Public License |
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7 | -- as published by the Free Software Foundation; either version 2 |
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8 | -- of the License, or (at your option) any later version. |
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9 | -- |
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10 | -- This program is distributed in the hope that it will be useful, |
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11 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 | -- GNU General Public License for more details. |
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14 | -- |
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15 | -- You should have received a copy of the GNU General Public License |
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16 | -- along with this program; if not, write to the Free Software |
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17 | -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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18 | -- |
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19 | |
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20 | |
30 | 21 | |
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Update Makefile to now pass config paths to prosody. Update prosody, modulemanager and connectionlisteners to obey these paths.
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22 | local plugin_dir = CFG_PLUGINDIR or "./plugins/"; |
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23 | |
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24 | local logger = require "util.logger"; |
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25 | local log = logger.init("modulemanager"); |
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26 | local addDiscoInfoHandler = require "core.discomanager".addDiscoInfoHandler; |
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27 | local eventmanager = require "core.eventmanager"; |
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28 | local config = require "core.configmanager"; |
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29 | local multitable_new = require "util.multitable".new; |
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30 | |
30 | 31 | |
32 | local loadfile, pcall = loadfile, pcall; | |
33 | local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv; | |
34 | local pairs, ipairs = pairs, ipairs; | |
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35 | local t_insert = table.insert; |
30 | 36 | local type = type; |
37 | ||
38 | local tostring, print = tostring, print; | |
39 | ||
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40 | -- We need this to let modules access the real global namespace |
30 | 41 | local _G = _G; |
42 | ||
43 | module "modulemanager" | |
44 | ||
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45 | local api = {}; -- Module API container |
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46 | |
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47 | local modulemap = { ["*"] = {} }; |
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48 | |
591 | 49 | local stanza_handlers = multitable_new(); |
30 | 50 | local handler_info = {}; |
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51 | |
30 | 52 | local modulehelpers = setmetatable({}, { __index = _G }); |
53 | ||
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54 | -- Load modules when a host is activated |
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55 | function load_modules_for_host(host) |
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56 | -- Load modules from global section |
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57 | local modules_enabled = config.get("*", "core", "modules_enabled"); |
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58 | local modules_disabled = config.get(host, "core", "modules_disabled"); |
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59 | local disabled_set = {}; |
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60 | if modules_enabled then |
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61 | if modules_disabled then |
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62 | for _, module in pairs(modules_disabled) do |
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63 | disabled_set[module] = true; |
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64 | end |
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65 | end |
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66 | for _, module in pairs(modules_enabled) do |
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67 | if not disabled_set[module] then |
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68 | load(host, module); |
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69 | end |
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70 | end |
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71 | end |
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72 | |
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73 | -- Load modules from just this host |
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74 | local modules_enabled = config.get(host, "core", "modules_enabled"); |
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75 | if modules_enabled then |
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76 | for _, module in pairs(modules_enabled) do |
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77 | load(host, module); |
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78 | end |
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79 | end |
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80 | end |
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81 | eventmanager.add_event_hook("host-activated", load_modules_for_host); |
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82 | -- |
30 | 83 | |
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84 | function load(host, module_name, config) |
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85 | if not (host and module_name) then |
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86 | return nil, "insufficient-parameters"; |
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87 | end |
30 | 88 | |
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89 | if not modulemap[host] then |
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90 | modulemap[host] = {}; |
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91 | elseif modulemap[host][module_name] then |
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92 | log("warn", "%s is already loaded for %s, so not loading again", module_name, host); |
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93 | return nil, "module-already-loaded"; |
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94 | elseif modulemap["*"][module_name] then |
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95 | return nil, "global-module-already-loaded"; |
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96 | end |
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97 | |
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98 | |
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99 | local mod, err = loadfile(plugin_dir.."mod_"..module_name..".lua"); |
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100 | if not mod then |
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101 | log("error", "Unable to load module '%s': %s", module_name or "nil", err or "nil"); |
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102 | return nil, err; |
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103 | end |
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104 | |
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105 | local _log = logger.init(host..":"..module_name); |
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106 | local api_instance = setmetatable({ name = module_name, host = host, config = config, _log = _log, log = function (self, ...) return _log(...); end }, { __index = api }); |
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107 | |
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108 | local pluginenv = setmetatable({ module = api_instance }, { __index = _G }); |
30 | 109 | |
110 | setfenv(mod, pluginenv); | |
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111 | |
30 | 112 | local success, ret = pcall(mod); |
113 | if not success then | |
114 | log("error", "Error initialising module '%s': %s", name or "nil", ret or "nil"); | |
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115 | return nil, ret; |
30 | 116 | end |
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117 | |
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118 | -- Use modified host, if the module set one |
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119 | modulemap[api_instance.host][module_name] = mod; |
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120 | |
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121 | return true; |
30 | 122 | end |
123 | ||
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124 | function is_loaded(host, name) |
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125 | return modulemap[host] and modulemap[host][name] and true; |
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126 | end |
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127 | |
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128 | function unload(host, name, ...) |
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129 | local mod = modulemap[host] and modulemap[host][name]; |
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130 | if not mod then return nil, "module-not-loaded"; end |
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131 | |
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132 | if type(mod.unload) == "function" then |
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133 | local ok, err = pcall(mod.unload, ...) |
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134 | if (not ok) and err then |
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135 | log("warn", "Non-fatal error unloading module '%s' from '%s': %s", name, host, err); |
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136 | end |
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137 | end |
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138 | |
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139 | end |
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140 | |
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141 | function handle_stanza(host, origin, stanza) |
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142 | local name, xmlns, origin_type = stanza.name, stanza.attr.xmlns, origin.type; |
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143 | if name == "iq" and xmlns == "jabber:client" then |
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144 | if stanza.attr.type == "get" or stanza.attr.type == "set" then |
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145 | xmlns = stanza.tags[1].attr.xmlns; |
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146 | log("debug", "Stanza of type %s from %s has xmlns: %s", name, origin_type, xmlns); |
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147 | else |
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148 | log("debug", "Discarding %s from %s of type: %s", name, origin_type, stanza.attr.type); |
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149 | return true; |
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150 | end |
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151 | end |
591 | 152 | local handlers = stanza_handlers:get(host, origin_type, name, xmlns); |
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153 | if handlers then |
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154 | log("debug", "Passing stanza to mod_%s", handler_info[handlers[1]].name); |
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155 | (handlers[1])(origin, stanza); |
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156 | return true; |
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157 | else |
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158 | log("debug", "Stanza unhandled by any modules, xmlns: %s", stanza.attr.xmlns); -- we didn't handle it |
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159 | end |
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160 | end |
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161 | |
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162 | ----- API functions exposed to modules ----------- |
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163 | -- Must all be in api.* |
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164 | |
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165 | -- Returns the name of the current module |
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166 | function api:get_name() |
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167 | return self.name; |
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168 | end |
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169 | |
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170 | -- Returns the host that the current module is serving |
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171 | function api:get_host() |
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172 | return self.host; |
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173 | end |
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174 | |
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175 | local function _add_handler(module, origin_type, tag, xmlns, handler) |
591 | 176 | local handlers = stanza_handlers:get(module.host, origin_type, tag, xmlns); |
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177 | local msg = (tag == "iq") and "namespace" or "payload namespace"; |
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178 | if not handlers then |
591 | 179 | stanza_handlers:add(module.host, origin_type, tag, xmlns, handler); |
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180 | handler_info[handler] = module; |
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181 | module:log("debug", "I now handle tag '%s' [%s] with %s '%s'", tag, origin_type, msg, xmlns); |
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182 | else |
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183 | module:log("warn", "I wanted to handle tag '%s' [%s] with %s '%s' but mod_%s already handles that", tag, origin_type, msg, xmlns, handler_info[handlers[1]].module.name); |
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184 | end |
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185 | end |
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186 | |
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187 | function api:add_handler(origin_type, tag, xmlns, handler) |
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188 | if not (origin_type and tag and xmlns and handler) then return false; end |
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189 | if type(origin_type) == "table" then |
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190 | for _, origin_type in ipairs(origin_type) do |
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191 | _add_handler(self, origin_type, tag, xmlns, handler); |
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192 | end |
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193 | else |
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194 | _add_handler(self, origin_type, tag, xmlns, handler); |
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195 | end |
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196 | end |
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197 | function api:add_iq_handler(origin_type, xmlns, handler) |
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198 | self:add_handler(origin_type, "iq", xmlns, handler); |
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199 | end |
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200 | |
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201 | function api:add_feature(xmlns) |
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202 | addDiscoInfoHandler(self.host, function(reply, to, from, node) |
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203 | if #node == 0 then |
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204 | reply:tag("feature", {var = xmlns}):up(); |
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205 | return true; |
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206 | end |
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207 | end); |
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208 | end |
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209 | |
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210 | function api:add_event_hook (...) return eventmanager.add_event_hook(...); end |
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211 | |
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212 | -------------------------------------------------------------------- |
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213 | |
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214 | return _M; |