aboutsummaryrefslogtreecommitdiffstats
path: root/core/hostmanager.lua
blob: 445ef0fb10eedfc67b6262c5ed86fd02536d6926 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
-- 
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local configmanager = require "core.configmanager";
local modulemanager = require "core.modulemanager";
local events_new = require "util.events".new;
local disco_items = require "util.multitable".new();
local NULL = {};

local uuid_gen = require "util.uuid".generate;

local log = require "util.logger".init("hostmanager");

local hosts = hosts;
local prosody_events = prosody.events;
if not _G.prosody.incoming_s2s then
	require "core.s2smanager";
end
local incoming_s2s = _G.prosody.incoming_s2s;

local pairs, setmetatable = pairs, setmetatable;

module "hostmanager"

local hosts_loaded_once;

local function load_enabled_hosts(config)
	local defined_hosts = config or configmanager.getconfig();
	local activated_any_host;
	
	for host, host_config in pairs(defined_hosts) do
		if host ~= "*" and host_config.core.enabled ~= false then
			if not host_config.core.component_module then
				activated_any_host = true;
			end
			activate(host, host_config);
		end
	end
	
	if not activated_any_host then
		log("error", "No active VirtualHost entries in the config file. This may cause unexpected behaviour as no modules will be loaded.");
	end
	
	prosody_events.fire_event("hosts-activated", defined_hosts);
	hosts_loaded_once = true;
end

prosody_events.add_handler("server-starting", load_enabled_hosts);

function activate(host, host_config)
	if hosts[host] then return nil, "host-already-exists"; end
	local host_session = {
		host = host;
		s2sout = {};
		events = events_new();
		dialback_secret = configmanager.get(host, "core", "dialback_secret") or uuid_gen();
		disallow_s2s = configmanager.get(host, "core", "disallow_s2s");
	};
	if not host_config.core.component_module then -- host
		host_session.type = "local";
		host_session.sessions = {};
		if configmanager.get(host, "core", "anonymous_login") then
			host_session.disallow_s2s = (configmanager.get(host, "core", "disallow_s2s") ~= false);
		end
	else -- component
		host_session.type = "component";
	end
	hosts[host] = host_session;
	disco_items:set(host:match("%.(.*)") or "*", host, true);
	for option_name in pairs(host_config.core) do
		if option_name:match("_ports$") or option_name:match("_interface$") then
			log("warn", "%s: Option '%s' has no effect for virtual hosts - put it in the server-wide section instead", host, option_name);
		end
	end
	
	log((hosts_loaded_once and "info") or "debug", "Activated host: %s", host);
	prosody_events.fire_event("host-activated", host, host_config);
	return true;
end

function deactivate(host, reason)
	local host_session = hosts[host];
	log("info", "Deactivating host: %s", host);
	prosody_events.fire_event("host-deactivating", host, host_session);
	
	reason = reason or { condition = "host-gone", text = "This server has stopped serving "..host };
	
	-- Disconnect local users, s2s connections
	if host_session.sessions then
		for username, user in pairs(host_session.sessions) do
			for resource, session in pairs(user.sessions) do
				log("debug", "Closing connection for %s@%s/%s", username, host, resource);
				session:close(reason);
			end
		end
	end
	if host_session.s2sout then
		for remotehost, session in pairs(host_session.s2sout) do
			if session.close then
				log("debug", "Closing outgoing connection to %s", remotehost);
				if session.srv_hosts then session.srv_hosts = nil; end
				session:close(reason);
			end
		end
	end
	for remote_session in pairs(incoming_s2s) do
		if remote_session.to_host == host then
			log("debug", "Closing incoming connection from %s", remote_session.from_host or "<unknown>");
			remote_session:close(reason);
		end
	end

	if host_session.modules then
		for module in pairs(host_session.modules) do
			modulemanager.unload(host, module);
		end
	end

	hosts[host] = nil;
	disco_items:remove(host:match("%.(.*)") or "*", host);
	prosody_events.fire_event("host-deactivated", host);
	log("info", "Deactivated host: %s", host);
end

function get_children(host)
	return disco_items:get(host) or NULL;
end

return _M;