prosody
b7049746bd29
core/componentmanager.lua

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core/componentmanager.lua @ 2923:b7049746bd29

Update copyright headers for 2010
author Matthew Wild <mwild1@gmail.com>
date Mon, 22 Mar 2010 17:06:15 +0000
parent 2768:c317bfef9b74
child 2925:692b3c6c5bd2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1523
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 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 local prosody = _G.prosody;
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10 local log = require "util.logger".init("componentmanager");
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11 local configmanager = require "core.configmanager";
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12 local modulemanager = require "core.modulemanager";
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13 local jid_split = require "util.jid".split;
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14 local fire_event = require "core.eventmanager".fire_event;
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15 local events_new = require "util.events".new;
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16 local st = require "util.stanza";
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17 local prosody, hosts = prosody, prosody.hosts;
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18 local ssl = ssl;
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19
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20 local pairs, setmetatable, type, tostring = pairs, setmetatable, type, tostring;
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21
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22 local components = {};
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23
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24 local disco_items = require "util.multitable".new();
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25 local NULL = {};
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26
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27 module "componentmanager"
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29 local function default_component_handler(origin, stanza)
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30 log("warn", "Stanza being handled by default component; bouncing error for: %s", stanza:top_tag());
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31 if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then
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32 origin.send(st.error_reply(stanza, "wait", "service-unavailable", "Component unavailable"));
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33 end
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34 end
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35
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36 function load_enabled_components(config)
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37 local defined_hosts = config or configmanager.getconfig();
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38
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39 for host, host_config in pairs(defined_hosts) do
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40 if host ~= "*" and ((host_config.core.enabled == nil or host_config.core.enabled) and type(host_config.core.component_module) == "string") then
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41 hosts[host] = create_component(host);
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42 hosts[host].connected = false;
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43 components[host] = default_component_handler;
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44 local ok, err = modulemanager.load(host, host_config.core.component_module);
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45 if not ok then
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46 log("error", "Error loading %s component %s: %s", tostring(host_config.core.component_module), tostring(host), tostring(err));
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47 else
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48 fire_event("component-activated", host, host_config);
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49 log("debug", "Activated %s component: %s", host_config.core.component_module, host);
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50 end
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51 end
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52 end
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53 end
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54
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55 if prosody and prosody.events then
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56 prosody.events.add_handler("server-starting", load_enabled_components);
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57 end
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58
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59 function handle_stanza(origin, stanza)
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60 local node, host = jid_split(stanza.attr.to);
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61 local component = nil;
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62 if host then
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63 if node then component = components[node.."@"..host]; end -- hack to allow hooking node@server
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64 if not component then component = components[host]; end
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65 end
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66 if component then
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67 log("debug", "%s stanza being handled by component: %s", stanza.name, host);
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68 component(origin, stanza, hosts[host]);
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69 else
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70 log("error", "Component manager recieved a stanza for a non-existing component: "..tostring(stanza));
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71 default_component_handler(origin, stanza);
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72 end
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73 end
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74
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75 function create_component(host, component, events)
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76 -- TODO check for host well-formedness
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77 local ssl_ctx, ssl_ctx_in;
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78 if host and ssl then
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79 -- We need to find SSL context to use...
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80 -- Discussion in prosody@ concluded that
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81 -- 1 level back is usually enough by default
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82 local base_host = host:gsub("^[^%.]+%.", "");
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83 if hosts[base_host] then
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84 ssl_ctx = hosts[base_host].ssl_ctx;
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85 ssl_ctx_in = hosts[base_host].ssl_ctx_in;
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86 elseif prosody.global_ssl_ctx then
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87 -- We have no cert, and no parent host to borrow a cert from
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88 -- Use global/default cert if there is one
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89 ssl_ctx = ssl.newcontext(prosody.global_ssl_ctx);
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90 ssl_ctx_in = ssl.newcontext(setmetatable({ mode = "server" }, { __index = prosody.global_ssl_ctx }));
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91 end
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92 end
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93 return { type = "component", host = host, connected = true, s2sout = {},
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94 ssl_ctx = ssl_ctx, ssl_ctx_in = ssl_ctx_in, events = events or events_new() };
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95 end
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96
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97 function register_component(host, component, session)
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98 if not hosts[host] or (hosts[host].type == 'component' and not hosts[host].connected) then
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99 local old_events = hosts[host] and hosts[host].events;
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100
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101 components[host] = component;
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102 hosts[host] = session or create_component(host, component, old_events);
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103
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104 -- Add events object if not already one
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105 if not hosts[host].events then
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106 hosts[host].events = old_events or events_new();
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107 end
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108
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109 -- add to disco_items
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110 if not(host:find("@", 1, true) or host:find("/", 1, true)) and host:find(".", 1, true) then
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111 disco_items:set(host:sub(host:find(".", 1, true)+1), host, true);
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112 end
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113 modulemanager.load(host, "dialback");
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114 modulemanager.load(host, "tls");
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115 log("debug", "component added: "..host);
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116 return session or hosts[host];
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117 else
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118 log("error", "Attempt to set component for existing host: "..host);
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119 end
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120 end
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121
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122 function deregister_component(host)
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123 if components[host] then
1991
ed4cd15bf4dd componentmanager: Unload mod_tls for components before removing them.
Waqas Hussain <waqas20@gmail.com>
parents: 1990
diff changeset
124 modulemanager.unload(host, "tls");
751
7c22619fdb19 componentmanager: Add support for loading components defined in the config
Matthew Wild <mwild1@gmail.com>
parents: 703
diff changeset
125 modulemanager.unload(host, "dialback");
1064
3e945c3938ad core.componentmanager: Really fix marking components as disconnected when unregistered
Matthew Wild <mwild1@gmail.com>
parents: 1004
diff changeset
126 hosts[host].connected = nil;
984
9acc1c2ceb2c componentmanager: Restore default component when unregistering
Matthew Wild <mwild1@gmail.com>
parents: 983
diff changeset
127 local host_config = configmanager.getconfig()[host];
9acc1c2ceb2c componentmanager: Restore default component when unregistering
Matthew Wild <mwild1@gmail.com>
parents: 983
diff changeset
128 if host_config and ((host_config.core.enabled == nil or host_config.core.enabled) and type(host_config.core.component_module) == "string") then
961
b48ed2149d0a componentmanager: Reply with service-unavailable for unconnected components
Matthew Wild <mwild1@gmail.com>
parents: 945
diff changeset
129 -- Set default handler
984
9acc1c2ceb2c componentmanager: Restore default component when unregistering
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parents: 983
diff changeset
130 components[host] = default_component_handler;
961
b48ed2149d0a componentmanager: Reply with service-unavailable for unconnected components
Matthew Wild <mwild1@gmail.com>
parents: 945
diff changeset
131 else
b48ed2149d0a componentmanager: Reply with service-unavailable for unconnected components
Matthew Wild <mwild1@gmail.com>
parents: 945
diff changeset
132 -- Component not in config, or disabled, remove
1992
bbaba17537a9 componentmanager: Added a FIXME comment.
Waqas Hussain <waqas20@gmail.com>
parents: 1991
diff changeset
133 hosts[host] = nil; -- FIXME do proper unload of all modules and other cleanup before removing
984
9acc1c2ceb2c componentmanager: Restore default component when unregistering
Matthew Wild <mwild1@gmail.com>
parents: 983
diff changeset
134 components[host] = nil;
961
b48ed2149d0a componentmanager: Reply with service-unavailable for unconnected components
Matthew Wild <mwild1@gmail.com>
parents: 945
diff changeset
135 end
939
b832f786af62 Added: componentmanager: Automatically add component.host.name to the disco items list of host.name
Waqas Hussain <waqas20@gmail.com>
parents: 896
diff changeset
136 -- remove from disco_items
b832f786af62 Added: componentmanager: Automatically add component.host.name to the disco items list of host.name
Waqas Hussain <waqas20@gmail.com>
parents: 896
diff changeset
137 if not(host:find("@", 1, true) or host:find("/", 1, true)) and host:find(".", 1, true) then
b832f786af62 Added: componentmanager: Automatically add component.host.name to the disco items list of host.name
Waqas Hussain <waqas20@gmail.com>
parents: 896
diff changeset
138 disco_items:remove(host:sub(host:find(".", 1, true)+1), host);
b832f786af62 Added: componentmanager: Automatically add component.host.name to the disco items list of host.name
Waqas Hussain <waqas20@gmail.com>
parents: 896
diff changeset
139 end
673
c9bc58e84e96 componentmanager: Added support for component deregistering
Waqas Hussain <waqas20@gmail.com>
parents: 638
diff changeset
140 log("debug", "component removed: "..host);
c9bc58e84e96 componentmanager: Added support for component deregistering
Waqas Hussain <waqas20@gmail.com>
parents: 638
diff changeset
141 return true;
c9bc58e84e96 componentmanager: Added support for component deregistering
Waqas Hussain <waqas20@gmail.com>
parents: 638
diff changeset
142 else
c9bc58e84e96 componentmanager: Added support for component deregistering
Waqas Hussain <waqas20@gmail.com>
parents: 638
diff changeset
143 log("error", "Attempt to remove component for non-existing host: "..host);
c9bc58e84e96 componentmanager: Added support for component deregistering
Waqas Hussain <waqas20@gmail.com>
parents: 638
diff changeset
144 end
c9bc58e84e96 componentmanager: Added support for component deregistering
Waqas Hussain <waqas20@gmail.com>
parents: 638
diff changeset
145 end
847
2d424936723c core.componentmanager: Refactor a little to make XEP-0114 plugin a little simpler
Matthew Wild <mwild1@gmail.com>
parents: 777
diff changeset
146
961
b48ed2149d0a componentmanager: Reply with service-unavailable for unconnected components
Matthew Wild <mwild1@gmail.com>
parents: 945
diff changeset
147 function set_component_handler(host, handler)
b48ed2149d0a componentmanager: Reply with service-unavailable for unconnected components
Matthew Wild <mwild1@gmail.com>
parents: 945
diff changeset
148 components[host] = handler;
b48ed2149d0a componentmanager: Reply with service-unavailable for unconnected components
Matthew Wild <mwild1@gmail.com>
parents: 945
diff changeset
149 end
b48ed2149d0a componentmanager: Reply with service-unavailable for unconnected components
Matthew Wild <mwild1@gmail.com>
parents: 945
diff changeset
150
1693
56e23b0b3893 componentmanager: Added function to get a list of children for a given hostname
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
151 function get_children(host)
56e23b0b3893 componentmanager: Added function to get a list of children for a given hostname
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
152 return disco_items:get(host) or NULL;
56e23b0b3893 componentmanager: Added function to get a list of children for a given hostname
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
153 end
56e23b0b3893 componentmanager: Added function to get a list of children for a given hostname
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
154
847
2d424936723c core.componentmanager: Refactor a little to make XEP-0114 plugin a little simpler
Matthew Wild <mwild1@gmail.com>
parents: 777
diff changeset
155 return _M;