local config = require "core.configmanager"; local server = require "net.server"; local log = require "util.logger".init("portmanager"); local multitable = require "util.multitable"; local set = require "util.set"; local prosody = prosody; local fire_event = prosody.events.fire_event; module "portmanager"; --- Config local default_interfaces = { "*" }; local default_local_interfaces = { "127.0.0.1" }; if config.get("*", "use_ipv6") then table.insert(default_interfaces, "::"); table.insert(default_local_interfaces, "::1"); end --- Private state -- service_name -> { service_info, ... } local services = setmetatable({}, { __index = function (t, k) rawset(t, k, {}); return rawget(t, k); end }); -- service_name, interface (string), port (number) local active_services = multitable.new(); --- Private helpers local function error_to_friendly_message(service_name, port, err) local friendly_message = err; if err:match(" in use") then -- FIXME: Use service_name here if port == 5222 or port == 5223 or port == 5269 then friendly_message = "check that Prosody or another XMPP server is " .."not already running and using this port"; elseif port == 80 or port == 81 then friendly_message = "check that a HTTP server is not already using " .."this port"; elseif port == 5280 then friendly_message = "check that Prosody or a BOSH connection manager " .."is not already running"; else friendly_message = "this port is in use by another application"; end elseif err:match("permission") then friendly_message = "Prosody does not have sufficient privileges to use this port"; elseif err == "no ssl context" then if not config.get("*", "core", "ssl") then friendly_message = "there is no 'ssl' config under Host \"*\" which is " .."require for legacy SSL ports"; else friendly_message = "initializing SSL support failed, see previous log entries"; end end return friendly_message; end module("portmanager", package.seeall); prosody.events.add_handler("item-added/net-provider", function (event) local item = event.item; register_service(item.name, item); end); prosody.events.add_handler("item-removed/net-provider", function (event) local item = event.item; unregister_service(item.name, item); end); --- Public API function activate(service_name) local service_info = services[service_name][1]; if not service_info then return nil, "Unknown service: "..service_name; end local listener = service_info.listener; local config_prefix = (service_info.config_prefix or service_name).."_"; if config_prefix == "_" then config_prefix = ""; end local bind_interfaces = config.get("*", config_prefix.."interfaces") or config.get("*", config_prefix.."interface") -- COMPAT w/pre-0.9 or (service_info.private and default_local_interfaces) or config.get("*", "interfaces") or config.get("*", "interface") -- COMPAT w/pre-0.9 or listener.default_interface -- COMPAT w/pre0.9 or default_interfaces bind_interfaces = set.new(type(bind_interfaces)~="table" and {bind_interfaces} or bind_interfaces); local bind_ports = set.new(config.get("*", config_prefix.."ports") or service_info.default_ports or {service_info.default_port or listener.default_port -- COMPAT w/pre-0.9 }); local mode = listener.default_mode or "*a"; local ssl; if service_info.encryption == "ssl" then ssl = prosody.global_ssl_ctx; if not ssl then return nil, "global-ssl-context-required"; end end for interface in bind_interfaces do for port in bind_ports do if #active_services:search(nil, interface, port) > 0 then log("error", "Multiple services configured to listen on the same port ([%s]:%d): %s, %s", interface, port, active_services:search(nil, interface, port)[1][1].service.name or "", service_name or ""); else local handler, err = server.addserver(interface, port, listener, mode, ssl); if not handler then log("error", "Failed to open server port %d on %s, %s", port, interface, error_to_friendly_message(service_name, port, err)); else log("debug", "Added listening service %s to [%s]:%d", service_name, interface, port); active_services:add(service_name, interface, port, { server = handler; service = service_info; }); end end end end log("info", "Activated service '%s'", service_name); return true; end function deactivate(service_name) local active = active_services:search(service_name)[1]; if not active then return; end for interface, ports in pairs(active) do for port, active_service in pairs(ports) do close(interface, port); end end log("info", "Deactivated service '%s'", service_name); end function register_service(service_name, service_info) table.insert(services[service_name], service_info); if not active_services:get(service_name) then log("debug", "No active service for %s, activating...", service_name); local ok, err = activate(service_name); if not ok then log("error", "Failed to activate service '%s': %s", service_name, err or "unknown error"); end end fire_event("service-added", { name = service_name, service = service_info }); return true; end function unregister_service(service_name, service_info) local service_info_list = services[service_name]; for i, service in ipairs(service_info_list) do if service == service_info then table.remove(service_info_list, i); end end if active_services[service_name] == service_info then deactivate(service_name); if #service_info_list > 0 then -- Other services registered with this name activate(service_name); -- Re-activate with the next available one end end fire_event("service-removed", { name = service_name, service = service_info }); end function close(interface, port) local service, server = get_service_at(interface, port); if not service then return false, "port-not-open"; end server:close(); active_services:remove(service.name, interface, port); log("debug", "Removed listening service %s from [%s]:%d", service.name, interface, port); return true; end function get_service_at(interface, port) local data = active_services:search(nil, interface, port)[1][1]; return data.service, data.server; end function get_service(service_name) return services[service_name]; end function get_active_services(...) return active_services; end function get_registered_services() return services; end return _M;