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core/portmanager.lua @ 10889:25e0ec11b4e4
util.human.units: Put math functions into locals
Primarily because the next commit will deal with math.log behaving
differently on Lua 5.1 and that's eaiser with locals.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Wed, 03 Jun 2020 20:16:00 +0200 |
parent | 10641:85f1cbfd364a |
child | 11412:77785c5d6773 |
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local config = require "core.configmanager"; local certmanager = require "core.certmanager"; local server = require "net.server"; local socket = require "socket"; local log = require "util.logger".init("portmanager"); local multitable = require "util.multitable"; local set = require "util.set"; local table = table; local setmetatable, rawset, rawget = setmetatable, rawset, rawget; local type, tonumber, ipairs = type, tonumber, ipairs; local pairs = pairs; local prosody = prosody; local fire_event = prosody.events.fire_event; local _ENV = nil; -- luacheck: std none --- Config local default_interfaces = { }; local default_local_interfaces = { }; if config.get("*", "use_ipv4") ~= false then table.insert(default_interfaces, "*"); table.insert(default_local_interfaces, "127.0.0.1"); end if socket.tcp6 and config.get("*", "use_ipv6") ~= false then table.insert(default_interfaces, "::"); table.insert(default_local_interfaces, "::1"); end local default_mode = config.get("*", "network_default_read_size") or 4096; --- 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) --luacheck: ignore 212/service_name 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"; end return friendly_message; end --- Public API local 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 (config.get("*", "local_interfaces") or 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 = config.get("*", config_prefix.."ports") or service_info.default_ports or {service_info.default_port or listener.default_port -- COMPAT w/pre-0.9 } bind_ports = set.new(type(bind_ports) ~= "table" and { bind_ports } or bind_ports ); local mode = listener.default_mode or default_mode; local hooked_ports = {}; for interface in bind_interfaces do for port in bind_ports do local port_number = tonumber(port); if not port_number then log("error", "Invalid port number specified for service '%s': %s", service_info.name, port); elseif #active_services:search(nil, interface, port_number) > 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 "<unnamed>", service_name or "<unnamed>"); else local ssl, cfg, err; -- Create SSL context for this service/port if service_info.encryption == "ssl" then local global_ssl_config = config.get("*", "ssl") or {}; local prefix_ssl_config = config.get("*", config_prefix.."ssl") or global_ssl_config; log("debug", "Creating context for direct TLS service %s on port %d", service_info.name, port); ssl, err, cfg = certmanager.create_context(service_info.name.." port "..port, "server", prefix_ssl_config[interface], prefix_ssl_config[port], prefix_ssl_config, service_info.ssl_config or {}, global_ssl_config[interface], global_ssl_config[port]); if not ssl then log("error", "Error binding encrypted port for %s: %s", service_info.name, error_to_friendly_message(service_name, port_number, err) or "unknown error"); end end if not err then -- Start listening on interface+port local handler, err = server.listen(interface, port_number, listener, { read_size = mode, tls_ctx = ssl, tls_direct = service_info.encryption == "ssl"; sni_hosts = {}, }); if not handler then log("error", "Failed to open server port %d on %s, %s", port_number, interface, error_to_friendly_message(service_name, port_number, err)); else table.insert(hooked_ports, "["..interface.."]:"..port_number); log("debug", "Added listening service %s to [%s]:%d", service_name, interface, port_number); active_services:add(service_name, interface, port_number, { server = handler; service = service_info; tls_cfg = cfg; }); end end end end end log("info", "Activated service '%s' on %s", service_name, #hooked_ports == 0 and "no ports" or table.concat(hooked_ports, ", ")); return true; end local close; -- forward declaration local function deactivate(service_name, service_info) for name, interface, port, n, active_service --luacheck: ignore 213/name 213/n in active_services:iter(service_name or service_info and service_info.name, nil, nil, nil) do if service_info == nil or active_service.service == service_info then close(interface, port); end end log("info", "Deactivated service '%s'", service_name or service_info.name); end local function register_service(service_name, service_info) table.insert(services[service_name], service_info); if not active_services:get(service_name) and prosody.process_type == "prosody" 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 local function unregister_service(service_name, service_info) log("debug", "Unregistering service: %s", service_name); 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 deactivate(nil, service_info); if #service_info_list > 0 then -- Other services registered with this name activate(service_name); -- Re-activate with the next available one end fire_event("service-removed", { name = service_name, service = service_info }); end local get_service_at -- forward declaration function close(interface, port) local service, service_server = get_service_at(interface, port); if not service then return false, "port-not-open"; end service_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 local function get_service(service_name) return (services[service_name] or {})[1]; end local function get_active_services() return active_services; end local function get_registered_services() return services; end -- Event handlers local function add_sni_host(host, service) for name, interface, port, n, active_service --luacheck: ignore 213 in active_services:iter(service, nil, nil, nil) do if active_service.server.hosts and active_service.tls_cfg then local config_prefix = (active_service.config_prefix or name).."_"; if config_prefix == "_" then config_prefix = ""; end local prefix_ssl_config = config.get(host, config_prefix.."ssl"); local autocert = certmanager.find_host_cert(host); -- luacheck: ignore 211/cfg local ssl, err, cfg = certmanager.create_context(host, "server", prefix_ssl_config, autocert, active_service.tls_cfg); if ssl then active_service.server.hosts[host] = ssl; else log("error", "Error creating TLS context for SNI host %s: %s", host, err); end end end end prosody.events.add_handler("item-added/net-provider", function (event) local item = event.item; register_service(item.name, item); for host in pairs(prosody.hosts) do add_sni_host(host, item.name); end end); prosody.events.add_handler("item-removed/net-provider", function (event) local item = event.item; unregister_service(item.name, item); end); prosody.events.add_handler("host-activated", add_sni_host); prosody.events.add_handler("host-deactivated", function (host) for name, interface, port, n, active_service --luacheck: ignore 213 in active_services:iter(nil, nil, nil, nil) do if active_service.tls_cfg then active_service.server.hosts[host] = nil; end end end); return { activate = activate; deactivate = deactivate; register_service = register_service; unregister_service = unregister_service; close = close; get_service_at = get_service_at; get_service = get_service; get_active_services = get_active_services; get_registered_services = get_registered_services; };