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core/hostmanager.lua @ 7039:138241cc1b3a
util.events: Document data structures
author | Matthew Wild <mwild1@gmail.com> |
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date | Wed, 23 Dec 2015 11:17:26 +0000 |
parent | 6779:6236668da30a |
child | 6791:e813e8cf6046 |
child | 8251:cb2d86f4b511 |
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-- 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 jid_split = require "util.jid".split; local log = require "util.logger".init("hostmanager"); local hosts = prosody.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 core_route_stanza = _G.prosody.core_route_stanza; local pairs, select, rawget = pairs, select, rawget; local tostring, type = tostring, type; local setmetatable = setmetatable; local _ENV = nil; local host_mt = { } function host_mt:__tostring() if self.type == "component" then local typ = configmanager.get(self.host, "component_module"); if typ == "component" then return ("Component %q"):format(self.host); end return ("Component %q %q"):format(self.host, typ); elseif self.type == "local" then return ("VirtualHost %q"):format(self.host); end end local hosts_loaded_once; local activate, deactivate; 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.enabled ~= false then if not host_config.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); local function host_send(stanza) local name, stanza_type = stanza.name, stanza.attr.type; if stanza_type == "error" or (name == "iq" and stanza_type == "result") then local dest_host_name = select(2, jid_split(stanza.attr.to)); local dest_host = hosts[dest_host_name] or { type = "unknown" }; log("warn", "Unhandled response sent to %s host %s: %s", dest_host.type, dest_host_name, tostring(stanza)); return; end core_route_stanza(nil, stanza); end function activate(host, host_config) if rawget(hosts, host) then return nil, "The host "..host.." is already activated"; end host_config = host_config or configmanager.getconfig()[host]; if not host_config then return nil, "Couldn't find the host "..tostring(host).." defined in the current config"; end local host_session = { host = host; s2sout = {}; events = events_new(); send = host_send; modules = {}; }; setmetatable(host_session, host_mt); if not host_config.component_module then -- host host_session.type = "local"; host_session.sessions = {}; else -- component host_session.type = "component"; end hosts[host] = host_session; if not host:match("[@/]") then disco_items:set(host:match("%.(.*)") or "*", host, host_config.name or true); end for option_name in pairs(host_config) 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); return true; end function deactivate(host, reason) local host_session = hosts[host]; if not host_session then return nil, "The host "..tostring(host).." is not activated"; end log("info", "Deactivating host: %s", host); prosody_events.fire_event("host-deactivating", { host = host, host_session = host_session, reason = reason }); if type(reason) ~= "table" then reason = { condition = "host-gone", text = tostring(reason or "This server has stopped serving "..host) }; end -- Disconnect local users, s2s connections -- TODO: These should move to mod_c2s and mod_s2s (how do they know they're being unloaded and not reloaded?) 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 -- TODO: This should be done in modulemanager if host_session.modules then for module in pairs(host_session.modules) do modulemanager.unload(host, module); end end hosts[host] = nil; if not host:match("[@/]") then disco_items:remove(host:match("%.(.*)") or "*", host); end prosody_events.fire_event("host-deactivated", host); log("info", "Deactivated host: %s", host); return true; end local function get_children(host) return disco_items:get(host) or NULL; end return { activate = activate; deactivate = deactivate; get_children = get_children; }