Sun, 12 Jul 2009 15:21:10 +0100
mod_bosh: Use new httpserver helper to initialise ports
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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 | |
30 | 10 | |
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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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11 | local plugin_dir = CFG_PLUGINDIR or "./plugins/"; |
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12 | |
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13 | local logger = require "util.logger"; |
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Added function add_feature to modules API (for adding disco features)
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14 | local log = logger.init("modulemanager"); |
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15 | local addDiscoInfoHandler = require "core.discomanager".addDiscoInfoHandler; |
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Add hostmanager, and eventmanager
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16 | local eventmanager = require "core.eventmanager"; |
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17 | local config = require "core.configmanager"; |
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Changed module manager to use multitable (initial commit)
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18 | local multitable_new = require "util.multitable".new; |
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Add core.actions for managing server 'actions'; and make modulemanager register actions 'load' and 'unload'
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19 | local register_actions = require "core.actions".register; |
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modulemanager: require util.stanza
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20 | local st = require "util.stanza"; |
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21 | local pluginloader = require "util.pluginloader"; |
30 | 22 | |
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modulemanager: Add get_host_type() API method, and fix up call_module_method to work properly
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23 | local hosts = hosts; |
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modulemanager: module:hook now allows global modules to hook events on the prosody.events object
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24 | local prosody = prosody; |
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25 | |
30 | 26 | local loadfile, pcall = loadfile, pcall; |
27 | local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv; | |
28 | local pairs, ipairs = pairs, ipairs; | |
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29 | local t_insert, t_concat = table.insert, table.concat; |
30 | 30 | local type = type; |
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Modulemanager: Basic modules can now be unloaded correctly
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31 | local next = next; |
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modulemanager: module.unload now gets called when modules are being unloaded
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32 | local rawget = rawget; |
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33 | local error = error; |
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34 | local tostring = tostring; |
30 | 35 | |
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36 | local autoload_modules = {"presence", "message", "iq"}; |
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37 | |
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38 | -- We need this to let modules access the real global namespace |
30 | 39 | local _G = _G; |
40 | ||
41 | module "modulemanager" | |
42 | ||
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43 | api = {}; |
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44 | local api = api; -- Module API container |
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45 | |
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46 | local modulemap = { ["*"] = {} }; |
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47 | |
591 | 48 | local stanza_handlers = multitable_new(); |
30 | 49 | local handler_info = {}; |
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50 | |
30 | 51 | local modulehelpers = setmetatable({}, { __index = _G }); |
52 | ||
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53 | local features_table = multitable_new(); |
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54 | local identities_table = multitable_new(); |
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55 | local handler_table = multitable_new(); |
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modulemanager: Per-host event hooks for plugins - solves issue 41
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56 | local hooked = multitable_new(); |
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57 | local hooks = multitable_new(); |
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58 | local event_hooks = multitable_new(); |
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59 | |
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60 | local NULL = {}; |
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61 | |
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62 | -- Load modules when a host is activated |
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63 | function load_modules_for_host(host) |
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64 | if config.get(host, "core", "load_global_modules") ~= false then |
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65 | -- Load modules from global section |
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66 | local modules_enabled = config.get("*", "core", "modules_enabled"); |
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67 | local modules_disabled = config.get(host, "core", "modules_disabled"); |
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68 | local disabled_set = {}; |
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69 | if modules_enabled then |
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70 | if modules_disabled then |
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71 | for _, module in ipairs(modules_disabled) do |
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72 | disabled_set[module] = true; |
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73 | end |
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74 | end |
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75 | for _, module in ipairs(autoload_modules) do |
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76 | if not disabled_set[module] then |
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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 | for _, module in ipairs(modules_enabled) do |
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81 | if not disabled_set[module] and not is_loaded(host, module) then |
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82 | load(host, module); |
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83 | end |
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84 | end |
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85 | end |
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86 | end |
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87 | |
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88 | -- Load modules from just this host |
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89 | local modules_enabled = config.get(host, "core", "modules_enabled"); |
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90 | if modules_enabled and modules_enabled ~= config.get("*", "core", "modules_enabled") then |
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91 | for _, module in pairs(modules_enabled) do |
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92 | if not is_loaded(host, module) then |
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93 | load(host, module); |
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94 | end |
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95 | end |
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96 | end |
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97 | end |
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98 | eventmanager.add_event_hook("host-activated", load_modules_for_host); |
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99 | -- |
30 | 100 | |
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101 | function load(host, module_name, config) |
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102 | if not (host and module_name) then |
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103 | return nil, "insufficient-parameters"; |
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104 | end |
30 | 105 | |
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106 | if not modulemap[host] then |
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107 | modulemap[host] = {}; |
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108 | end |
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109 | |
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110 | if modulemap[host][module_name] then |
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111 | log("warn", "%s is already loaded for %s, so not loading again", module_name, host); |
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112 | return nil, "module-already-loaded"; |
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113 | elseif modulemap["*"][module_name] then |
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114 | return nil, "global-module-already-loaded"; |
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115 | end |
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116 | |
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117 | |
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118 | local mod, err = pluginloader.load_code(module_name); |
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119 | if not mod then |
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120 | log("error", "Unable to load module '%s': %s", module_name or "nil", err or "nil"); |
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121 | return nil, err; |
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122 | end |
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123 | |
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124 | local _log = logger.init(host..":"..module_name); |
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125 | 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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126 | |
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127 | local pluginenv = setmetatable({ module = api_instance }, { __index = _G }); |
30 | 128 | |
129 | setfenv(mod, pluginenv); | |
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130 | if not hosts[host] then hosts[host] = { type = "component", host = host, connected = false, s2sout = {} }; end |
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131 | |
30 | 132 | local success, ret = pcall(mod); |
133 | if not success then | |
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134 | log("error", "Error initialising module '%s': %s", module_name or "nil", ret or "nil"); |
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135 | return nil, ret; |
30 | 136 | end |
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137 | |
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138 | if module_has_method(pluginenv, "load") then |
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139 | local ok, err = call_module_method(pluginenv, "load"); |
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140 | if (not ok) and err then |
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141 | log("warn", "Error loading module '%s' on '%s': %s", module_name, host, err); |
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142 | end |
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143 | end |
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144 | |
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145 | -- Use modified host, if the module set one |
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146 | modulemap[api_instance.host][module_name] = pluginenv; |
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147 | |
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148 | if api_instance.host == "*" and host ~= "*" then |
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149 | api_instance:set_global(); |
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150 | end |
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151 | |
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152 | return true; |
30 | 153 | end |
154 | ||
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155 | function get_module(host, name) |
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156 | return modulemap[host] and modulemap[host][name]; |
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157 | end |
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158 | |
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159 | function is_loaded(host, name) |
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160 | return modulemap[host] and modulemap[host][name] and true; |
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161 | end |
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162 | |
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163 | function unload(host, name, ...) |
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164 | local mod = get_module(host, name); |
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165 | if not mod then return nil, "module-not-loaded"; end |
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166 | |
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167 | if module_has_method(mod, "unload") then |
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168 | local ok, err = call_module_method(mod, "unload"); |
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169 | if (not ok) and err then |
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170 | log("warn", "Non-fatal error unloading module '%s' on '%s': %s", name, host, err); |
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171 | end |
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172 | end |
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173 | modulemap[host][name] = nil; |
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174 | features_table:remove(host, name); |
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175 | identities_table:remove(host, name); |
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176 | local params = handler_table:get(host, name); -- , {module.host, origin_type, tag, xmlns} |
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177 | for _, param in pairs(params or NULL) do |
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178 | local handlers = stanza_handlers:get(param[1], param[2], param[3], param[4]); |
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179 | if handlers then |
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180 | handler_info[handlers[1]] = nil; |
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181 | stanza_handlers:remove(param[1], param[2], param[3], param[4]); |
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182 | end |
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183 | end |
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184 | event_hooks:remove(host, name); |
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185 | -- unhook event handlers hooked by module:hook |
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186 | for event, handlers in pairs(hooks:get(host, name) or NULL) do |
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187 | for handler in pairs(handlers or NULL) do |
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188 | (hosts[host] or prosody).events.remove_handler(event, handler); |
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189 | end |
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190 | end |
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191 | hooks:remove(host, name); |
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192 | return true; |
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193 | end |
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194 | |
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195 | function reload(host, name, ...) |
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196 | local mod = get_module(host, name); |
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197 | if not mod then return nil, "module-not-loaded"; end |
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198 | |
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199 | local _mod, err = pluginloader.load_code(name); -- checking for syntax errors |
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200 | if not _mod then |
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201 | log("error", "Unable to load module '%s': %s", name or "nil", err or "nil"); |
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202 | return nil, err; |
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203 | end |
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204 | |
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205 | local saved; |
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206 | |
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207 | if module_has_method(mod, "save") then |
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208 | local ok, ret, err = call_module_method(mod, "save"); |
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209 | if ok then |
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210 | saved = ret; |
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211 | else |
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212 | log("warn", "Error saving module '%s:%s' state: %s", host, module, ret); |
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213 | if not config.get(host, "core", "force_module_reload") then |
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214 | log("warn", "Aborting reload due to error, set force_module_reload to ignore this"); |
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215 | return nil, "save-state-failed"; |
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216 | else |
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217 | log("warn", "Continuing with reload (using the force)"); |
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218 | end |
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219 | end |
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220 | end |
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221 | |
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222 | unload(host, name, ...); |
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223 | local ok, err = load(host, name, ...); |
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224 | if ok then |
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225 | mod = get_module(host, name); |
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226 | if module_has_method(mod, "restore") then |
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227 | local ok, err = call_module_method(mod, "restore", saved or {}) |
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228 | if (not ok) and err then |
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229 | log("warn", "Error restoring module '%s' from '%s': %s", name, host, err); |
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230 | end |
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231 | end |
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232 | return true; |
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233 | end |
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234 | return ok, err; |
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235 | end |
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236 | |
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237 | function handle_stanza(host, origin, stanza) |
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238 | local name, xmlns, origin_type = stanza.name, stanza.attr.xmlns, origin.type; |
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239 | if name == "iq" and xmlns == "jabber:client" then |
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240 | if stanza.attr.type == "get" or stanza.attr.type == "set" then |
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241 | xmlns = stanza.tags[1].attr.xmlns or "jabber:client"; |
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242 | log("debug", "Stanza of type %s from %s has xmlns: %s", name, origin_type, xmlns); |
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243 | else |
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244 | log("debug", "Discarding %s from %s of type: %s", name, origin_type, stanza.attr.type); |
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245 | return true; |
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246 | end |
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247 | end |
591 | 248 | local handlers = stanza_handlers:get(host, origin_type, name, xmlns); |
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249 | if not handlers then handlers = stanza_handlers:get("*", origin_type, name, xmlns); end |
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250 | if handlers then |
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251 | log("debug", "Passing stanza to mod_%s", handler_info[handlers[1]].name); |
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252 | (handlers[1])(origin, stanza); |
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253 | return true; |
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254 | else |
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255 | log("debug", "Unhandled %s stanza: %s; xmlns=%s", origin.type, stanza.name, xmlns); -- we didn't handle it |
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256 | if stanza.attr.xmlns == "jabber:client" then |
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257 | if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then |
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258 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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259 | end |
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260 | elseif not((name == "features" or name == "error") and xmlns == "http://etherx.jabber.org/streams") then -- FIXME remove check once we handle S2S features |
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261 | origin:close("unsupported-stanza-type"); |
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262 | end |
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263 | end |
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264 | end |
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265 | |
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266 | function module_has_method(module, method) |
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267 | return type(module.module[method]) == "function"; |
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268 | end |
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269 | |
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270 | function call_module_method(module, method, ...) |
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271 | if module_has_method(module, method) then |
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272 | local f = module.module[method]; |
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273 | return pcall(f, ...); |
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274 | else |
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275 | return false, "no-such-method"; |
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276 | end |
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277 | end |
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278 | |
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279 | ----- API functions exposed to modules ----------- |
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280 | -- Must all be in api.* |
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281 | |
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282 | -- Returns the name of the current module |
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283 | function api:get_name() |
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284 | return self.name; |
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285 | end |
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286 | |
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287 | -- Returns the host that the current module is serving |
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288 | function api:get_host() |
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289 | return self.host; |
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290 | end |
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291 | |
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292 | function api:get_host_type() |
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293 | return hosts[self.host].type; |
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294 | end |
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295 | |
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296 | function api:set_global() |
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297 | self.host = "*"; |
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298 | -- Update the logger |
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299 | local _log = logger.init("mod_"..self.name); |
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300 | self.log = function (self, ...) return _log(...); end; |
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301 | self._log = _log; |
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302 | end |
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303 | |
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304 | local function _add_handler(module, origin_type, tag, xmlns, handler) |
591 | 305 | local handlers = stanza_handlers:get(module.host, origin_type, tag, xmlns); |
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306 | local msg = (tag == "iq") and "namespace" or "payload namespace"; |
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307 | if not handlers then |
591 | 308 | stanza_handlers:add(module.host, origin_type, tag, xmlns, handler); |
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309 | handler_info[handler] = module; |
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310 | handler_table:add(module.host, module.name, {module.host, origin_type, tag, xmlns}); |
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311 | --module:log("debug", "I now handle tag '%s' [%s] with %s '%s'", tag, origin_type, msg, xmlns); |
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312 | else |
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313 | 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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314 | end |
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315 | end |
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316 | |
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317 | function api:add_handler(origin_type, tag, xmlns, handler) |
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318 | if not (origin_type and tag and xmlns and handler) then return false; end |
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319 | if type(origin_type) == "table" then |
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320 | for _, origin_type in ipairs(origin_type) do |
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321 | _add_handler(self, origin_type, tag, xmlns, handler); |
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322 | end |
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323 | else |
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324 | _add_handler(self, origin_type, tag, xmlns, handler); |
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325 | end |
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326 | end |
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327 | function api:add_iq_handler(origin_type, xmlns, handler) |
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328 | self:add_handler(origin_type, "iq", xmlns, handler); |
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329 | end |
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330 | |
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331 | addDiscoInfoHandler("*host", function(reply, to, from, node) |
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332 | if #node == 0 then |
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333 | local done = {}; |
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334 | for module, identities in pairs(identities_table:get(to) or NULL) do -- for each module |
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335 | for identity, attr in pairs(identities) do |
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336 | if not done[identity] then |
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337 | reply:tag("identity", attr):up(); -- TODO cache |
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338 | done[identity] = true; |
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339 | end |
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340 | end |
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341 | end |
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342 | for module, identities in pairs(identities_table:get("*") or NULL) do -- for each module |
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343 | for identity, attr in pairs(identities) do |
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344 | if not done[identity] then |
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345 | reply:tag("identity", attr):up(); -- TODO cache |
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346 | done[identity] = true; |
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347 | end |
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348 | end |
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349 | end |
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350 | for module, features in pairs(features_table:get(to) or NULL) do -- for each module |
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351 | for feature in pairs(features) do |
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352 | if not done[feature] then |
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353 | reply:tag("feature", {var = feature}):up(); -- TODO cache |
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354 | done[feature] = true; |
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355 | end |
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356 | end |
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357 | end |
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358 | for module, features in pairs(features_table:get("*") or NULL) do -- for each module |
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359 | for feature in pairs(features) do |
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360 | if not done[feature] then |
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361 | reply:tag("feature", {var = feature}):up(); -- TODO cache |
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362 | done[feature] = true; |
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363 | end |
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364 | end |
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365 | end |
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366 | return next(done) ~= nil; |
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367 | end |
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368 | end); |
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369 | |
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370 | function api:add_feature(xmlns) |
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371 | features_table:set(self.host, self.name, xmlns, true); |
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372 | end |
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373 | function api:add_identity(category, type) |
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374 | identities_table:set(self.host, self.name, category.."\0"..type, {category = category, type = type}); |
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375 | end |
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376 | |
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377 | local event_hook = function(host, mod_name, event_name, ...) |
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378 | if type((...)) == "table" and (...).host and (...).host ~= host then return; end |
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379 | for handler in pairs(event_hooks:get(host, mod_name, event_name) or NULL) do |
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380 | handler(...); |
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381 | end |
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382 | end; |
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383 | function api:add_event_hook(name, handler) |
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384 | if not hooked:get(self.host, self.name, name) then |
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385 | eventmanager.add_event_hook(name, function(...) event_hook(self.host, self.name, name, ...); end); |
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386 | hooked:set(self.host, self.name, name, true); |
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387 | end |
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388 | event_hooks:set(self.host, self.name, name, handler, true); |
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389 | end |
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390 | |
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391 | function api:fire_event(...) |
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392 | return (hosts[self.host] or prosody).events.fire_event(...); |
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393 | end |
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394 | |
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395 | function api:hook(event, handler, priority) |
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396 | hooks:set(self.host, self.name, event, handler, true); |
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397 | (hosts[self.host] or prosody).events.add_handler(event, handler, priority); |
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398 | end |
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399 | |
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400 | function api:hook_stanza(xmlns, name, handler, priority) |
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401 | if not handler and type(name) == "function" then |
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402 | -- If only 2 options then they specified no xmlns |
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403 | xmlns, name, handler, priority = nil, xmlns, name, handler; |
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404 | elseif not (handler and name) then |
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405 | self:log("warn", "Error: Insufficient parameters to module:hook_stanza()"); |
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406 | return; |
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407 | end |
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408 | return api.hook(self, "stanza/"..(xmlns and (xmlns..":") or "")..name, function (data) return handler(data.origin, data.stanza, data); end, priority); |
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409 | end |
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410 | |
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411 | function api:require(lib) |
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412 | local f, n = pluginloader.load_code(self.name, lib..".lib.lua"); |
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413 | if not f then |
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414 | f, n = pluginloader.load_code(lib, lib..".lib.lua"); |
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415 | end |
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416 | if not f then error("Failed to load plugin library '"..lib.."', error: "..n); end -- FIXME better error message |
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417 | setfenv(f, setmetatable({ module = self }, { __index = _G })); |
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418 | return f(); |
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419 | end |
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420 | |
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421 | -------------------------------------------------------------------- |
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422 | |
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423 | local actions = {}; |
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424 | |
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425 | function actions.load(params) |
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426 | --return true, "Module loaded ("..params.module.." on "..params.host..")"; |
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427 | return load(params.host, params.module); |
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428 | end |
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429 | |
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430 | function actions.unload(params) |
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431 | return unload(params.host, params.module); |
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432 | end |
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433 | |
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434 | register_actions("/modules", actions); |
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435 | |
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436 | return _M; |