prosody
9132f16666e4
core/modulemanager.lua

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core/modulemanager.lua @ 1386:9132f16666e4

modulemanager: Fix copy/paste error, should be name instead of module_name
author Matthew Wild <mwild1@gmail.com>
date Mon, 22 Jun 2009 21:54:34 +0100
parent 1378:d09ecc8ee1ef
child 1389:846df07536eb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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2c0b9e3c11c3 0.3->0.4
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1 -- Prosody IM v0.4
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90ce865eebd8 Update copyright notices for 2009
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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 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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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
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10
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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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14 local log = logger.init("modulemanager");
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15 local addDiscoInfoHandler = require "core.discomanager".addDiscoInfoHandler;
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16 local eventmanager = require "core.eventmanager";
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17 local config = require "core.configmanager";
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18 local multitable_new = require "util.multitable".new;
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19 local register_actions = require "core.actions".register;
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20 local st = require "util.stanza";
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21 local pluginloader = require "util.pluginloader";
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22
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23 local hosts = hosts;
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24 local prosody = prosody;
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25
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26 local loadfile, pcall = loadfile, pcall;
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27 local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv;
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28 local pairs, ipairs = pairs, ipairs;
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29 local t_insert, t_concat = table.insert, table.concat;
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30 local type = type;
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31 local next = next;
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32 local rawget = rawget;
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33
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34 local tostring = tostring;
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35
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36 -- We need this to let modules access the real global namespace
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37 local _G = _G;
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38
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39 module "modulemanager"
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40
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41 local api = {}; -- Module API container
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42
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43 local modulemap = { ["*"] = {} };
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44
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45 local stanza_handlers = multitable_new();
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46 local handler_info = {};
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47
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48 local modulehelpers = setmetatable({}, { __index = _G });
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49
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50 local features_table = multitable_new();
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51 local identities_table = multitable_new();
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52 local handler_table = multitable_new();
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53 local hooked = multitable_new();
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54 local hooks = multitable_new();
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55 local event_hooks = multitable_new();
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56
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57 local NULL = {};
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58
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59 -- Load modules when a host is activated
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60 function load_modules_for_host(host)
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61 if config.get(host, "core", "modules_enable") == false then
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62 return; -- Only load for hosts, not components, etc.
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63 end
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64
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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({"presence", "message", "iq"}) 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
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87 -- Load modules from just this host
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88 local modules_enabled = config.get(host, "core", "modules_enabled");
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89 if modules_enabled then
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90 for _, module in pairs(modules_enabled) do
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91 if not is_loaded(host, module) then
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92 load(host, module);
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93 end
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94 end
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95 end
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96 end
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97 eventmanager.add_event_hook("host-activated", load_modules_for_host);
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98 --
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99
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100 function load(host, module_name, config)
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101 if not (host and module_name) then
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102 return nil, "insufficient-parameters";
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103 end
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104
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105 if not modulemap[host] then
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106 modulemap[host] = {};
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107 end
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108
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109 if modulemap[host][module_name] then
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110 log("warn", "%s is already loaded for %s, so not loading again", module_name, host);
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111 return nil, "module-already-loaded";
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112 elseif modulemap["*"][module_name] then
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113 return nil, "global-module-already-loaded";
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114 end
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115
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116
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117 local mod, err = pluginloader.load_code(module_name);
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118 if not mod then
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119 log("error", "Unable to load module '%s': %s", module_name or "nil", err or "nil");
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120 return nil, err;
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121 end
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122
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123 local _log = logger.init(host..":"..module_name);
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124 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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125
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126 local pluginenv = setmetatable({ module = api_instance }, { __index = _G });
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127
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128 setfenv(mod, pluginenv);
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129 if not hosts[host] then hosts[host] = { type = "component", host = host, connected = false, s2sout = {} }; end
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130
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131 local success, ret = pcall(mod);
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132 if not success then
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133 log("error", "Error initialising module '%s': %s", module_name or "nil", ret or "nil");
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134 return nil, ret;
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135 end
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parents: 400
diff changeset
136
1378
d09ecc8ee1ef modulemanager: Call 'load' method when loading a module
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parents: 1361
diff changeset
137 if module_has_method(pluginenv, "load") then
d09ecc8ee1ef modulemanager: Call 'load' method when loading a module
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parents: 1361
diff changeset
138 local ok, err = call_module_method(pluginenv, "load");
d09ecc8ee1ef modulemanager: Call 'load' method when loading a module
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parents: 1361
diff changeset
139 if (not ok) and err then
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parents: 1361
diff changeset
140 log("warn", "Error loading module '%s' on '%s': %s", module_name, host, err);
d09ecc8ee1ef modulemanager: Call 'load' method when loading a module
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parents: 1361
diff changeset
141 end
d09ecc8ee1ef modulemanager: Call 'load' method when loading a module
Matthew Wild <mwild1@gmail.com>
parents: 1361
diff changeset
142 end
d09ecc8ee1ef modulemanager: Call 'load' method when loading a module
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parents: 1361
diff changeset
143
584
eb0cea29c8d7 Temporary hack for global modules
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parents: 579
diff changeset
144 -- Use modified host, if the module set one
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Waqas Hussain <waqas20@gmail.com>
parents: 637
diff changeset
145 modulemap[api_instance.host][module_name] = pluginenv;
438
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parents: 400
diff changeset
146
1069
034e345c0f8d modulemanager: Update logger when a module becomes global
Matthew Wild <mwild1@gmail.com>
parents: 929
diff changeset
147 if api_instance.host == "*" and host ~= "*" then
034e345c0f8d modulemanager: Update logger when a module becomes global
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parents: 929
diff changeset
148 api_instance:set_global();
034e345c0f8d modulemanager: Update logger when a module becomes global
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parents: 929
diff changeset
149 end
034e345c0f8d modulemanager: Update logger when a module becomes global
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parents: 929
diff changeset
150
229
01bd24ea488d We now fail if modules fail to load at startup.
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parents: 218
diff changeset
151 return true;
30
bcf539295f2d Huge commit to:
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parents:
diff changeset
152 end
bcf539295f2d Huge commit to:
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parents:
diff changeset
153
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diff changeset
154 function get_module(host, name)
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parents: 733
diff changeset
155 return modulemap[host] and modulemap[host][name];
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parents: 733
diff changeset
156 end
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diff changeset
157
439
6608ad3a72f3 is_loaded() and incomplete unload() for modules
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parents: 438
diff changeset
158 function is_loaded(host, name)
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parents: 438
diff changeset
159 return modulemap[host] and modulemap[host][name] and true;
6608ad3a72f3 is_loaded() and incomplete unload() for modules
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parents: 438
diff changeset
160 end
6608ad3a72f3 is_loaded() and incomplete unload() for modules
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parents: 438
diff changeset
161
6608ad3a72f3 is_loaded() and incomplete unload() for modules
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parents: 438
diff changeset
162 function unload(host, name, ...)
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diff changeset
163 local mod = get_module(host, name);
439
6608ad3a72f3 is_loaded() and incomplete unload() for modules
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parents: 438
diff changeset
164 if not mod then return nil, "module-not-loaded"; end
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parents: 438
diff changeset
165
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diff changeset
166 if module_has_method(mod, "unload") then
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parents: 733
diff changeset
167 local ok, err = call_module_method(mod, "unload");
439
6608ad3a72f3 is_loaded() and incomplete unload() for modules
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parents: 438
diff changeset
168 if (not ok) and err then
745
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parents: 733
diff changeset
169 log("warn", "Non-fatal error unloading module '%s' on '%s': %s", name, host, err);
439
6608ad3a72f3 is_loaded() and incomplete unload() for modules
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parents: 438
diff changeset
170 end
674
4f506c627b49 modulemanager: module.unload now gets called when modules are being unloaded
Waqas Hussain <waqas20@gmail.com>
parents: 670
diff changeset
171 end
670
d5cf10b7fc44 Modulemanager: Basic modules can now be unloaded correctly
Waqas Hussain <waqas20@gmail.com>
parents: 637
diff changeset
172 modulemap[host][name] = nil;
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parents: 637
diff changeset
173 features_table:remove(host, name);
1334
6846c5cc9ce2 modulemanager: Added function add_identity(category, type) to the modules API
Waqas Hussain <waqas20@gmail.com>
parents: 1330
diff changeset
174 identities_table:remove(host, name);
670
d5cf10b7fc44 Modulemanager: Basic modules can now be unloaded correctly
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parents: 637
diff changeset
175 local params = handler_table:get(host, name); -- , {module.host, origin_type, tag, xmlns}
708
b72d408f5f15 modulemanager: Fixed error on unloading modules with no handlers
Waqas Hussain <waqas20@gmail.com>
parents: 686
diff changeset
176 for _, param in pairs(params or NULL) do
670
d5cf10b7fc44 Modulemanager: Basic modules can now be unloaded correctly
Waqas Hussain <waqas20@gmail.com>
parents: 637
diff changeset
177 local handlers = stanza_handlers:get(param[1], param[2], param[3], param[4]);
708
b72d408f5f15 modulemanager: Fixed error on unloading modules with no handlers
Waqas Hussain <waqas20@gmail.com>
parents: 686
diff changeset
178 if handlers then
b72d408f5f15 modulemanager: Fixed error on unloading modules with no handlers
Waqas Hussain <waqas20@gmail.com>
parents: 686
diff changeset
179 handler_info[handlers[1]] = nil;
b72d408f5f15 modulemanager: Fixed error on unloading modules with no handlers
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parents: 686
diff changeset
180 stanza_handlers:remove(param[1], param[2], param[3], param[4]);
b72d408f5f15 modulemanager: Fixed error on unloading modules with no handlers
Waqas Hussain <waqas20@gmail.com>
parents: 686
diff changeset
181 end
439
6608ad3a72f3 is_loaded() and incomplete unload() for modules
Matthew Wild <mwild1@gmail.com>
parents: 438
diff changeset
182 end
686
13ed38531f69 modulemanager: Per-host event hooks for plugins - solves issue 41
Waqas Hussain <waqas20@gmail.com>
parents: 675
diff changeset
183 event_hooks:remove(host, name);
1259
6bd11bca9725 modulemanager: Keep track of event handlers added by module:hook, and remove them on module unload
Waqas Hussain <waqas20@gmail.com>
parents: 1253
diff changeset
184 -- unhook event handlers hooked by module:hook
6bd11bca9725 modulemanager: Keep track of event handlers added by module:hook, and remove them on module unload
Waqas Hussain <waqas20@gmail.com>
parents: 1253
diff changeset
185 for event, handlers in pairs(hooks:get(host, name) or NULL) do
6bd11bca9725 modulemanager: Keep track of event handlers added by module:hook, and remove them on module unload
Waqas Hussain <waqas20@gmail.com>
parents: 1253
diff changeset
186 for handler in pairs(handlers or NULL) do
6bd11bca9725 modulemanager: Keep track of event handlers added by module:hook, and remove them on module unload
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parents: 1253
diff changeset
187 (hosts[host] or prosody).events.remove_handler(event, handler);
6bd11bca9725 modulemanager: Keep track of event handlers added by module:hook, and remove them on module unload
Waqas Hussain <waqas20@gmail.com>
parents: 1253
diff changeset
188 end
6bd11bca9725 modulemanager: Keep track of event handlers added by module:hook, and remove them on module unload
Waqas Hussain <waqas20@gmail.com>
parents: 1253
diff changeset
189 end
6bd11bca9725 modulemanager: Keep track of event handlers added by module:hook, and remove them on module unload
Waqas Hussain <waqas20@gmail.com>
parents: 1253
diff changeset
190 hooks:remove(host, name);
670
d5cf10b7fc44 Modulemanager: Basic modules can now be unloaded correctly
Waqas Hussain <waqas20@gmail.com>
parents: 637
diff changeset
191 return true;
439
6608ad3a72f3 is_loaded() and incomplete unload() for modules
Matthew Wild <mwild1@gmail.com>
parents: 438
diff changeset
192 end
6608ad3a72f3 is_loaded() and incomplete unload() for modules
Matthew Wild <mwild1@gmail.com>
parents: 438
diff changeset
193
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parents: 709
diff changeset
194 function reload(host, name, ...)
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diff changeset
195 local mod = get_module(host, name);
710
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parents: 709
diff changeset
196 if not mod then return nil, "module-not-loaded"; end
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parents: 709
diff changeset
197
1360
857034905016 modulemanager: Changed to use util.pluginloader
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parents: 1346
diff changeset
198 local _mod, err = pluginloader.load_code(name); -- checking for syntax errors
713
2afd6d9e21cd modulemanager: Check for syntax errors before reloading a module
Waqas Hussain <waqas20@gmail.com>
parents: 710
diff changeset
199 if not _mod then
1386
9132f16666e4 modulemanager: Fix copy/paste error, should be name instead of module_name
Matthew Wild <mwild1@gmail.com>
parents: 1378
diff changeset
200 log("error", "Unable to load module '%s': %s", name or "nil", err or "nil");
713
2afd6d9e21cd modulemanager: Check for syntax errors before reloading a module
Waqas Hussain <waqas20@gmail.com>
parents: 710
diff changeset
201 return nil, err;
2afd6d9e21cd modulemanager: Check for syntax errors before reloading a module
Waqas Hussain <waqas20@gmail.com>
parents: 710
diff changeset
202 end
2afd6d9e21cd modulemanager: Check for syntax errors before reloading a module
Waqas Hussain <waqas20@gmail.com>
parents: 710
diff changeset
203
710
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Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
204 local saved;
745
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diff changeset
205
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
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parents: 733
diff changeset
206 if module_has_method(mod, "save") then
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
207 local ok, ret, err = call_module_method(mod, "save");
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
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parents: 733
diff changeset
208 if ok then
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
209 saved = ret;
710
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
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parents: 709
diff changeset
210 else
745
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parents: 733
diff changeset
211 log("warn", "Error saving module '%s:%s' state: %s", host, module, ret);
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
212 if not config.get(host, "core", "force_module_reload") then
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
213 log("warn", "Aborting reload due to error, set force_module_reload to ignore this");
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
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parents: 733
diff changeset
214 return nil, "save-state-failed";
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
215 else
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
216 log("warn", "Continuing with reload (using the force)");
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
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parents: 733
diff changeset
217 end
710
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
218 end
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
219 end
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
220
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
221 unload(host, name, ...);
745
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parents: 733
diff changeset
222 local ok, err = load(host, name, ...);
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
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parents: 733
diff changeset
223 if ok then
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
224 mod = get_module(host, name);
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
225 if module_has_method(mod, "restore") then
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
226 local ok, err = call_module_method(mod, "restore", saved or {})
710
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
227 if (not ok) and err then
745
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parents: 733
diff changeset
228 log("warn", "Error restoring module '%s' from '%s': %s", name, host, err);
710
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
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parents: 709
diff changeset
229 end
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
230 end
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
231 return true;
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
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parents: 709
diff changeset
232 end
745
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parents: 733
diff changeset
233 return ok, err;
710
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
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parents: 709
diff changeset
234 end
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
235
578
5879264e28e2 Changed module manager to use multitable (initial commit)
Waqas Hussain <waqas20@gmail.com>
parents: 573
diff changeset
236 function handle_stanza(host, origin, stanza)
5879264e28e2 Changed module manager to use multitable (initial commit)
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parents: 573
diff changeset
237 local name, xmlns, origin_type = stanza.name, stanza.attr.xmlns, origin.type;
5879264e28e2 Changed module manager to use multitable (initial commit)
Waqas Hussain <waqas20@gmail.com>
parents: 573
diff changeset
238 if name == "iq" and xmlns == "jabber:client" then
608
3758af511ce8 Don't try processing stanzas not of type get or set in module manager
Waqas Hussain <waqas20@gmail.com>
parents: 592
diff changeset
239 if stanza.attr.type == "get" or stanza.attr.type == "set" then
929
b4f2ca7f6f00 Fixed: modulemanager: IQs with extended elements in the default namespace could cause backtraces (related to issue #74)
Waqas Hussain <waqas20@gmail.com>
parents: 896
diff changeset
240 xmlns = stanza.tags[1].attr.xmlns or "jabber:client";
608
3758af511ce8 Don't try processing stanzas not of type get or set in module manager
Waqas Hussain <waqas20@gmail.com>
parents: 592
diff changeset
241 log("debug", "Stanza of type %s from %s has xmlns: %s", name, origin_type, xmlns);
3758af511ce8 Don't try processing stanzas not of type get or set in module manager
Waqas Hussain <waqas20@gmail.com>
parents: 592
diff changeset
242 else
3758af511ce8 Don't try processing stanzas not of type get or set in module manager
Waqas Hussain <waqas20@gmail.com>
parents: 592
diff changeset
243 log("debug", "Discarding %s from %s of type: %s", name, origin_type, stanza.attr.type);
3758af511ce8 Don't try processing stanzas not of type get or set in module manager
Waqas Hussain <waqas20@gmail.com>
parents: 592
diff changeset
244 return true;
3758af511ce8 Don't try processing stanzas not of type get or set in module manager
Waqas Hussain <waqas20@gmail.com>
parents: 592
diff changeset
245 end
578
5879264e28e2 Changed module manager to use multitable (initial commit)
Waqas Hussain <waqas20@gmail.com>
parents: 573
diff changeset
246 end
591
980ded4c60ef Removed unused variables
Waqas Hussain <waqas20@gmail.com>
parents: 590
diff changeset
247 local handlers = stanza_handlers:get(host, origin_type, name, xmlns);
876
fad020cead52 Allow global modules to hook stanza handlers
Waqas Hussain <waqas20@gmail.com>
parents: 778
diff changeset
248 if not handlers then handlers = stanza_handlers:get("*", origin_type, name, xmlns); end
578
5879264e28e2 Changed module manager to use multitable (initial commit)
Waqas Hussain <waqas20@gmail.com>
parents: 573
diff changeset
249 if handlers then
5879264e28e2 Changed module manager to use multitable (initial commit)
Waqas Hussain <waqas20@gmail.com>
parents: 573
diff changeset
250 log("debug", "Passing stanza to mod_%s", handler_info[handlers[1]].name);
5879264e28e2 Changed module manager to use multitable (initial commit)
Waqas Hussain <waqas20@gmail.com>
parents: 573
diff changeset
251 (handlers[1])(origin, stanza);
5879264e28e2 Changed module manager to use multitable (initial commit)
Waqas Hussain <waqas20@gmail.com>
parents: 573
diff changeset
252 return true;
5879264e28e2 Changed module manager to use multitable (initial commit)
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parents: 573
diff changeset
253 else
1167
5620ea24be94 stanza_router: Removed global function core_handle_stanza
Waqas Hussain <waqas20@gmail.com>
parents: 1105
diff changeset
254 log("debug", "Unhandled %s stanza: %s; xmlns=%s", origin.type, stanza.name, xmlns); -- we didn't handle it
5620ea24be94 stanza_router: Removed global function core_handle_stanza
Waqas Hussain <waqas20@gmail.com>
parents: 1105
diff changeset
255 if stanza.attr.xmlns == "jabber:client" then
5620ea24be94 stanza_router: Removed global function core_handle_stanza
Waqas Hussain <waqas20@gmail.com>
parents: 1105
diff changeset
256 if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then
5620ea24be94 stanza_router: Removed global function core_handle_stanza
Waqas Hussain <waqas20@gmail.com>
parents: 1105
diff changeset
257 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
5620ea24be94 stanza_router: Removed global function core_handle_stanza
Waqas Hussain <waqas20@gmail.com>
parents: 1105
diff changeset
258 end
1173
09a4cd461673 modulemanager: Don't close the stream on unhandled stream:features
Waqas Hussain <waqas20@gmail.com>
parents: 1167
diff changeset
259 elseif not(name == "features" and xmlns == "http://etherx.jabber.org/streams") then -- FIXME remove check once we handle S2S features
1167
5620ea24be94 stanza_router: Removed global function core_handle_stanza
Waqas Hussain <waqas20@gmail.com>
parents: 1105
diff changeset
260 origin:close("unsupported-stanza-type");
5620ea24be94 stanza_router: Removed global function core_handle_stanza
Waqas Hussain <waqas20@gmail.com>
parents: 1105
diff changeset
261 end
578
5879264e28e2 Changed module manager to use multitable (initial commit)
Waqas Hussain <waqas20@gmail.com>
parents: 573
diff changeset
262 end
5879264e28e2 Changed module manager to use multitable (initial commit)
Waqas Hussain <waqas20@gmail.com>
parents: 573
diff changeset
263 end
39
89877d61ac51 Add support for arbitrary events and event hooks
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264
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265 function module_has_method(module, method)
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266 return type(module.module[method]) == "function";
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267 end
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268
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269 function call_module_method(module, method, ...)
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270 if module_has_method(module, method) then
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271 local f = module.module[method];
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272 return pcall(f, ...);
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273 else
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274 return false, "no-such-method";
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275 end
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276 end
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277
438
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278 ----- API functions exposed to modules -----------
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279 -- Must all be in api.*
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280
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281 -- Returns the name of the current module
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282 function api:get_name()
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283 return self.name;
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284 end
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285
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286 -- Returns the host that the current module is serving
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287 function api:get_host()
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288 return self.host;
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289 end
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290
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291 function api:get_host_type()
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292 return hosts[self.host].type;
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293 end
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294
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295 function api:set_global()
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296 self.host = "*";
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297 -- Update the logger
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298 local _log = logger.init("mod_"..self.name);
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299 self.log = function (self, ...) return _log(...); end;
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300 self._log = _log;
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301 end
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302
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303 local function _add_handler(module, origin_type, tag, xmlns, handler)
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304 local handlers = stanza_handlers:get(module.host, origin_type, tag, xmlns);
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305 local msg = (tag == "iq") and "namespace" or "payload namespace";
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306 if not handlers then
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307 stanza_handlers:add(module.host, origin_type, tag, xmlns, handler);
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308 handler_info[handler] = module;
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309 handler_table:add(module.host, module.name, {module.host, origin_type, tag, xmlns});
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310 --module:log("debug", "I now handle tag '%s' [%s] with %s '%s'", tag, origin_type, msg, xmlns);
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311 else
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312 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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313 end
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314 end
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315
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316 function api:add_handler(origin_type, tag, xmlns, handler)
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317 if not (origin_type and tag and xmlns and handler) then return false; end
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318 if type(origin_type) == "table" then
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319 for _, origin_type in ipairs(origin_type) do
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320 _add_handler(self, origin_type, tag, xmlns, handler);
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321 end
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322 else
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323 _add_handler(self, origin_type, tag, xmlns, handler);
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324 end
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325 end
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326 function api:add_iq_handler(origin_type, xmlns, handler)
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327 self:add_handler(origin_type, "iq", xmlns, handler);
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328 end
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329
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330 addDiscoInfoHandler("*host", function(reply, to, from, node)
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331 if #node == 0 then
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332 local done = {};
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333 for module, identities in pairs(identities_table:get(to) or NULL) do -- for each module
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334 for identity, attr in pairs(identities) do
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335 if not done[identity] then
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336 reply:tag("identity", attr):up(); -- TODO cache
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337 done[identity] = true;
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338 end
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339 end
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340 end
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341 for module, identities in pairs(identities_table:get("*") or NULL) do -- for each module
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342 for identity, attr in pairs(identities) do
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343 if not done[identity] then
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344 reply:tag("identity", attr):up(); -- TODO cache
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345 done[identity] = true;
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346 end
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347 end
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348 end
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349 for module, features in pairs(features_table:get(to) or NULL) do -- for each module
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350 for feature in pairs(features) do
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351 if not done[feature] then
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352 reply:tag("feature", {var = feature}):up(); -- TODO cache
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353 done[feature] = true;
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354 end
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355 end
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356 end
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357 for module, features in pairs(features_table:get("*") or NULL) do -- for each module
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358 for feature in pairs(features) do
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359 if not done[feature] then
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360 reply:tag("feature", {var = feature}):up(); -- TODO cache
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361 done[feature] = true;
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362 end
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363 end
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364 end
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365 return next(done) ~= nil;
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366 end
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367 end);
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368
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369 function api:add_feature(xmlns)
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370 features_table:set(self.host, self.name, xmlns, true);
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371 end
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372 function api:add_identity(category, type)
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373 identities_table:set(self.host, self.name, category.."\0"..type, {category = category, type = type});
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374 end
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375
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376 local event_hook = function(host, mod_name, event_name, ...)
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377 if type((...)) == "table" and (...).host and (...).host ~= host then return; end
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378 for handler in pairs(event_hooks:get(host, mod_name, event_name) or NULL) do
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379 handler(...);
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380 end
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381 end;
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382 function api:add_event_hook(name, handler)
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383 if not hooked:get(self.host, self.name, name) then
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384 eventmanager.add_event_hook(name, function(...) event_hook(self.host, self.name, name, ...); end);
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385 hooked:set(self.host, self.name, name, true);
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386 end
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387 event_hooks:set(self.host, self.name, name, handler, true);
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diff changeset
388 end
438
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diff changeset
389
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390 function api:fire_event(...)
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diff changeset
391 return (hosts[self.host] or prosody).events.fire_event(...);
1183
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392 end
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393
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394 function api:hook(event, handler, priority)
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395 hooks:set(self.host, self.name, event, handler, true);
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396 (hosts[self.host] or prosody).events.add_handler(event, handler, priority);
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397 end
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parents: 1183
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398
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399 function api:hook_stanza(xmlns, name, handler, priority)
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parents: 1309
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400 if not handler and type(name) == "function" then
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401 -- If only 2 options then they specified no xmlns
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402 xmlns, name, handler, priority = nil, xmlns, name, handler;
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0698d0d39b35 modulemanager: Don't require xmlns to be non-nil
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parents: 1320
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403 elseif not (handler and name) then
1320
9c736b993e07 modulemanager: module:log() -> self:log() fix
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parents: 1319
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404 self:log("warn", "Error: Insufficient parameters to module:hook_stanza()");
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405 return;
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406 end
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407 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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parents: 1309
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408 end
66f76c332a75 modulemanager: Add module:hook([xmlns, ] name, handler) which uses new stanza events
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parents: 1309
diff changeset
409
438
193f9dd64f17 Bumper commit for the new modulemanager API \o/ Updates all the modules, though some more changes may be in store.
Matthew Wild <mwild1@gmail.com>
parents: 400
diff changeset
410 --------------------------------------------------------------------
193f9dd64f17 Bumper commit for the new modulemanager API \o/ Updates all the modules, though some more changes may be in store.
Matthew Wild <mwild1@gmail.com>
parents: 400
diff changeset
411
698
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parents: 695
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412 local actions = {};
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413
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parents: 695
diff changeset
414 function actions.load(params)
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415 --return true, "Module loaded ("..params.module.." on "..params.host..")";
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416 return load(params.host, params.module);
d8a678e40a0a Add core.actions for managing server 'actions'; and make modulemanager register actions 'load' and 'unload'
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parents: 695
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417 end
d8a678e40a0a Add core.actions for managing server 'actions'; and make modulemanager register actions 'load' and 'unload'
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parents: 695
diff changeset
418
d8a678e40a0a Add core.actions for managing server 'actions'; and make modulemanager register actions 'load' and 'unload'
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parents: 695
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419 function actions.unload(params)
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parents: 695
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420 return unload(params.host, params.module);
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parents: 695
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421 end
d8a678e40a0a Add core.actions for managing server 'actions'; and make modulemanager register actions 'load' and 'unload'
Matthew Wild <mwild1@gmail.com>
parents: 695
diff changeset
422
d8a678e40a0a Add core.actions for managing server 'actions'; and make modulemanager register actions 'load' and 'unload'
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parents: 695
diff changeset
423 register_actions("/modules", actions);
d8a678e40a0a Add core.actions for managing server 'actions'; and make modulemanager register actions 'load' and 'unload'
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parents: 695
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424
39
89877d61ac51 Add support for arbitrary events and event hooks
Matthew Wild <mwild1@gmail.com>
parents: 38
diff changeset
425 return _M;