Annotate

core/hostmanager.lua @ 4893:98ff89ab5d1d

moduleapi, modulemanager: Re-structure module.event_handlers so that the same handler can harmlessly handle multiple events (thanks Zash)
author Matthew Wild <mwild1@gmail.com>
date Fri, 18 May 2012 23:53:02 +0100
parent 4834:878f75ccc4fb
child 5081:c0c060e450be
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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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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 configmanager = require "core.configmanager";
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10 local modulemanager = require "core.modulemanager";
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11 local events_new = require "util.events".new;
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12 local disco_items = require "util.multitable".new();
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13 local NULL = {};
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14
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15 local jid_split = require "util.jid".split;
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16 local uuid_gen = require "util.uuid".generate;
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17
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18 local log = require "util.logger".init("hostmanager");
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19
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20 local hosts = hosts;
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21 local prosody_events = prosody.events;
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22 if not _G.prosody.incoming_s2s then
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23 require "core.s2smanager";
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24 end
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25 local incoming_s2s = _G.prosody.incoming_s2s;
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26
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27 local pairs, select = pairs, select;
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28 local tostring, type = tostring, type;
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29
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30 module "hostmanager"
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31
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32 local hosts_loaded_once;
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33
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34 local function load_enabled_hosts(config)
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35 local defined_hosts = config or configmanager.getconfig();
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36 local activated_any_host;
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37
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38 for host, host_config in pairs(defined_hosts) do
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39 if host ~= "*" and host_config.core.enabled ~= false then
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40 if not host_config.core.component_module then
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41 activated_any_host = true;
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42 end
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43 activate(host, host_config);
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44 end
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45 end
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47 if not activated_any_host then
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48 log("error", "No active VirtualHost entries in the config file. This may cause unexpected behaviour as no modules will be loaded.");
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49 end
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50
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51 prosody_events.fire_event("hosts-activated", defined_hosts);
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52 hosts_loaded_once = true;
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53 end
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54
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55 prosody_events.add_handler("server-starting", load_enabled_hosts);
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56
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57 local function host_send(stanza)
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58 local name, type = stanza.name, stanza.attr.type;
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59 if type == "error" or (name == "iq" and type == "result") then
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60 local dest_host_name = select(2, jid_split(stanza.attr.to));
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61 local dest_host = hosts[dest_host_name] or { type = "unknown" };
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62 log("warn", "Unhandled response sent to %s host %s: %s", dest_host.type, dest_host_name, tostring(stanza));
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63 return;
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64 end
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65 core_route_stanza(nil, stanza);
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66 end
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67
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68 function activate(host, host_config)
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69 if hosts[host] then return nil, "The host "..host.." is already activated"; end
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70 host_config = host_config or configmanager.getconfig()[host];
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71 if not host_config then return nil, "Couldn't find the host "..tostring(host).." defined in the current config"; end
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72 local host_session = {
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73 host = host;
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74 s2sout = {};
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75 events = events_new();
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76 dialback_secret = configmanager.get(host, "core", "dialback_secret") or uuid_gen();
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77 send = host_send;
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78 };
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79 if not host_config.core.component_module then -- host
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80 host_session.type = "local";
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81 host_session.sessions = {};
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82 else -- component
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83 host_session.type = "component";
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84 end
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85 hosts[host] = host_session;
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86 if not host:match("[@/]") then
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87 disco_items:set(host:match("%.(.*)") or "*", host, true);
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88 end
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89 for option_name in pairs(host_config.core) do
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90 if option_name:match("_ports$") or option_name:match("_interface$") then
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91 log("warn", "%s: Option '%s' has no effect for virtual hosts - put it in the server-wide section instead", host, option_name);
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92 end
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93 end
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94
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95 log((hosts_loaded_once and "info") or "debug", "Activated host: %s", host);
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96 prosody_events.fire_event("host-activated", host);
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97 return true;
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98 end
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99
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100 function deactivate(host, reason)
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101 local host_session = hosts[host];
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102 if not host_session then return nil, "The host "..tostring(host).." is not activated"; end
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103 log("info", "Deactivating host: %s", host);
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104 prosody_events.fire_event("host-deactivating", { host = host, host_session = host_session, reason = reason });
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105
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106 if type(reason) ~= "table" then
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107 reason = { condition = "host-gone", text = tostring(reason or "This server has stopped serving "..host) };
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108 end
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109
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110 -- Disconnect local users, s2s connections
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111 -- TODO: These should move to mod_c2s and mod_s2s (how do they know they're being unloaded and not reloaded?)
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112 if host_session.sessions then
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113 for username, user in pairs(host_session.sessions) do
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114 for resource, session in pairs(user.sessions) do
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115 log("debug", "Closing connection for %s@%s/%s", username, host, resource);
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116 session:close(reason);
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117 end
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118 end
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119 end
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120 if host_session.s2sout then
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121 for remotehost, session in pairs(host_session.s2sout) do
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122 if session.close then
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123 log("debug", "Closing outgoing connection to %s", remotehost);
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124 if session.srv_hosts then session.srv_hosts = nil; end
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125 session:close(reason);
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126 end
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127 end
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128 end
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129 for remote_session in pairs(incoming_s2s) do
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
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parents: 1974
diff changeset
130 if remote_session.to_host == host then
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
Matthew Wild <mwild1@gmail.com>
parents: 1974
diff changeset
131 log("debug", "Closing incoming connection from %s", remote_session.from_host or "<unknown>");
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parents: 1974
diff changeset
132 remote_session:close(reason);
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
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parents: 1974
diff changeset
133 end
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
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parents: 1974
diff changeset
134 end
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
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parents: 1974
diff changeset
135
4731
84596fc32b31 hostmanager: Add some TODO comments
Matthew Wild <mwild1@gmail.com>
parents: 4730
diff changeset
136 -- TODO: This should be done in modulemanager
1975
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
Matthew Wild <mwild1@gmail.com>
parents: 1974
diff changeset
137 if host_session.modules then
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
Matthew Wild <mwild1@gmail.com>
parents: 1974
diff changeset
138 for module in pairs(host_session.modules) do
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
Matthew Wild <mwild1@gmail.com>
parents: 1974
diff changeset
139 modulemanager.unload(host, module);
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
Matthew Wild <mwild1@gmail.com>
parents: 1974
diff changeset
140 end
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
Matthew Wild <mwild1@gmail.com>
parents: 1974
diff changeset
141 end
a9998fac292c hostmanager: deactivate() now accepts a reason, closes s2s connections as well as disconnecting users, and unloads modules for the host
Matthew Wild <mwild1@gmail.com>
parents: 1974
diff changeset
142
569
5216efe6088b Add hostmanager, and eventmanager
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
143 hosts[host] = nil;
3601
829e23b374cc hostmanager: Don't include hosts with '@' or '/' in the name in the get_children(host) result.
Waqas Hussain <waqas20@gmail.com>
parents: 3599
diff changeset
144 if not host:match("[@/]") then
829e23b374cc hostmanager: Don't include hosts with '@' or '/' in the name in the get_children(host) result.
Waqas Hussain <waqas20@gmail.com>
parents: 3599
diff changeset
145 disco_items:remove(host:match("%.(.*)") or "*", host);
829e23b374cc hostmanager: Don't include hosts with '@' or '/' in the name in the get_children(host) result.
Waqas Hussain <waqas20@gmail.com>
parents: 3599
diff changeset
146 end
3434
428f13c098d5 hostmanager: Remove dependency on eventmanager
Matthew Wild <mwild1@gmail.com>
parents: 2984
diff changeset
147 prosody_events.fire_event("host-deactivated", host);
575
428c951d0a33 Log in hostmanager when a vhost is activated/deactivated
Matthew Wild <mwild1@gmail.com>
parents: 569
diff changeset
148 log("info", "Deactivated host: %s", host);
3716
ebb2c6209e24 hostmanager: deactivate() now returns true on success.
Waqas Hussain <waqas20@gmail.com>
parents: 3715
diff changeset
149 return true;
569
5216efe6088b Add hostmanager, and eventmanager
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parents:
diff changeset
150 end
5216efe6088b Add hostmanager, and eventmanager
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
151
3599
adc0b4df6fdd hostmanager: Added function get_children(host) which copies componentmanager.get_children(host).
Waqas Hussain <waqas20@gmail.com>
parents: 3597
diff changeset
152 function get_children(host)
adc0b4df6fdd hostmanager: Added function get_children(host) which copies componentmanager.get_children(host).
Waqas Hussain <waqas20@gmail.com>
parents: 3597
diff changeset
153 return disco_items:get(host) or NULL;
569
5216efe6088b Add hostmanager, and eventmanager
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
154 end
5216efe6088b Add hostmanager, and eventmanager
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
155
1974
cfac07d8428e hostmanager: Add return _M;
Matthew Wild <mwild1@gmail.com>
parents: 1925
diff changeset
156 return _M;