diff options
Diffstat (limited to 'util/prosodyctl')
| -rw-r--r-- | util/prosodyctl/cert.lua | 294 | ||||
| -rw-r--r-- | util/prosodyctl/check.lua | 868 | ||||
| -rw-r--r-- | util/prosodyctl/shell.lua | 148 |
3 files changed, 1310 insertions, 0 deletions
diff --git a/util/prosodyctl/cert.lua b/util/prosodyctl/cert.lua new file mode 100644 index 00000000..2b96ac5c --- /dev/null +++ b/util/prosodyctl/cert.lua @@ -0,0 +1,294 @@ +local lfs = require "lfs"; + +local pctl = require "util.prosodyctl"; +local hi = require "util.human.io"; +local configmanager = require "core.configmanager"; + +local openssl; + +local cert_commands = {}; + +-- If a file already exists, ask if the user wants to use it or replace it +-- Backups the old file if replaced +local function use_existing(filename) + local attrs = lfs.attributes(filename); + if attrs then + if hi.show_yesno(filename .. " exists, do you want to replace it? [y/n]") then + local backup = filename..".bkp~"..os.date("%FT%T", attrs.change); + os.rename(filename, backup); + pctl.show_message("%s backed up to %s", filename, backup); + else + -- Use the existing file + return true; + end + end +end + +local have_pposix, pposix = pcall(require, "util.pposix"); +local cert_basedir = prosody.paths.data == "." and "./certs" or prosody.paths.data; +if have_pposix and pposix.getuid() == 0 then + -- FIXME should be enough to check if this directory is writable + local cert_dir = configmanager.get("*", "certificates") or "certs"; + cert_basedir = configmanager.resolve_relative_path(prosody.paths.config, cert_dir); +end + +function cert_commands.config(arg) + if #arg >= 1 and arg[1] ~= "--help" then + local conf_filename = cert_basedir .. "/" .. arg[1] .. ".cnf"; + if use_existing(conf_filename) then + return nil, conf_filename; + end + local distinguished_name; + if arg[#arg]:find("^/") then + distinguished_name = table.remove(arg); + end + local conf = openssl.config.new(); + conf:from_prosody(prosody.hosts, configmanager, arg); + if distinguished_name then + local dn = {}; + for k, v in distinguished_name:gmatch("/([^=/]+)=([^/]+)") do + table.insert(dn, k); + dn[k] = v; + end + conf.distinguished_name = dn; + else + pctl.show_message("Please provide details to include in the certificate config file."); + pctl.show_message("Leave the field empty to use the default value or '.' to exclude the field.") + for _, k in ipairs(openssl._DN_order) do + local v = conf.distinguished_name[k]; + if v then + local nv = nil; + if k == "commonName" then + v = arg[1] + elseif k == "emailAddress" then + v = "xmpp@" .. arg[1]; + elseif k == "countryName" then + local tld = arg[1]:match"%.([a-z]+)$"; + if tld and #tld == 2 and tld ~= "uk" then + v = tld:upper(); + end + end + nv = hi.show_prompt(("%s (%s):"):format(k, nv or v)); + nv = (not nv or nv == "") and v or nv; + if nv:find"[\192-\252][\128-\191]+" then + conf.req.string_mask = "utf8only" + end + conf.distinguished_name[k] = nv ~= "." and nv or nil; + end + end + end + local conf_file, err = io.open(conf_filename, "w"); + if not conf_file then + pctl.show_warning("Could not open OpenSSL config file for writing"); + pctl.show_warning(err); + os.exit(1); + end + conf_file:write(conf:serialize()); + conf_file:close(); + print(""); + pctl.show_message("Config written to %s", conf_filename); + return nil, conf_filename; + else + pctl.show_usage("cert config HOSTNAME [HOSTNAME+]", "Builds a certificate config file covering the supplied hostname(s)") + end +end + +function cert_commands.key(arg) + if #arg >= 1 and arg[1] ~= "--help" then + local key_filename = cert_basedir .. "/" .. arg[1] .. ".key"; + if use_existing(key_filename) then + return nil, key_filename; + end + os.remove(key_filename); -- This file, if it exists is unlikely to have write permissions + local key_size = tonumber(arg[2] or hi.show_prompt("Choose key size (2048):") or 2048); + local old_umask = pposix.umask("0377"); + if openssl.genrsa{out=key_filename, key_size} then + os.execute(("chmod 400 '%s'"):format(key_filename)); + pctl.show_message("Key written to %s", key_filename); + pposix.umask(old_umask); + return nil, key_filename; + end + pctl.show_message("There was a problem, see OpenSSL output"); + else + pctl.show_usage("cert key HOSTNAME <bits>", "Generates a RSA key named HOSTNAME.key\n " + .."Prompts for a key size if none given") + end +end + +function cert_commands.request(arg) + if #arg >= 1 and arg[1] ~= "--help" then + local req_filename = cert_basedir .. "/" .. arg[1] .. ".req"; + if use_existing(req_filename) then + return nil, req_filename; + end + local _, key_filename = cert_commands.key({arg[1]}); + local _, conf_filename = cert_commands.config(arg); + if openssl.req{new=true, key=key_filename, utf8=true, sha256=true, config=conf_filename, out=req_filename} then + pctl.show_message("Certificate request written to %s", req_filename); + else + pctl.show_message("There was a problem, see OpenSSL output"); + end + else + pctl.show_usage("cert request HOSTNAME [HOSTNAME+]", "Generates a certificate request for the supplied hostname(s)") + end +end + +function cert_commands.generate(arg) + if #arg >= 1 and arg[1] ~= "--help" then + local cert_filename = cert_basedir .. "/" .. arg[1] .. ".crt"; + if use_existing(cert_filename) then + return nil, cert_filename; + end + local _, key_filename = cert_commands.key({arg[1]}); + local _, conf_filename = cert_commands.config(arg); + if key_filename and conf_filename and cert_filename + and openssl.req{new=true, x509=true, nodes=true, key=key_filename, + days=365, sha256=true, utf8=true, config=conf_filename, out=cert_filename} then + pctl.show_message("Certificate written to %s", cert_filename); + print(); + else + pctl.show_message("There was a problem, see OpenSSL output"); + end + else + pctl.show_usage("cert generate HOSTNAME [HOSTNAME+]", "Generates a self-signed certificate for the current hostname(s)") + end +end + +local function sh_esc(s) + return "'" .. s:gsub("'", "'\\''") .. "'"; +end + +local function copy(from, to, umask, owner, group) + local old_umask = umask and pposix.umask(umask); + local attrs = lfs.attributes(to); + if attrs then -- Move old file out of the way + local backup = to..".bkp~"..os.date("%FT%T", attrs.change); + os.rename(to, backup); + end + -- FIXME friendlier error handling, maybe move above backup back? + local input = assert(io.open(from)); + local output = assert(io.open(to, "w")); + local data = input:read(2^11); + while data and output:write(data) do + data = input:read(2^11); + end + assert(input:close()); + assert(output:close()); + if not prosody.installed then + -- FIXME this is possibly specific to GNU chown + os.execute(("chown -c --reference=%s %s"):format(sh_esc(cert_basedir), sh_esc(to))); + elseif owner and group then + local ok = os.execute(("chown %s:%s %s"):format(sh_esc(owner), sh_esc(group), sh_esc(to))); + assert(ok == true or ok == 0, "Failed to change ownership of "..to); + end + if old_umask then pposix.umask(old_umask); end + return true; +end + +function cert_commands.import(arg) + local hostnames = {}; + -- Move hostname arguments out of arg, the rest should be a list of paths + while arg[1] and prosody.hosts[ arg[1] ] do + table.insert(hostnames, table.remove(arg, 1)); + end + if hostnames[1] == nil then + local domains = os.getenv"RENEWED_DOMAINS"; -- Set if invoked via certbot + if domains then + for host in domains:gmatch("%S+") do + table.insert(hostnames, host); + end + else + for host in pairs(prosody.hosts) do + if host ~= "*" and configmanager.get(host, "enabled") ~= false then + table.insert(hostnames, host); + end + end + end + end + if not arg[1] or arg[1] == "--help" then -- Probably forgot the path + pctl.show_usage("cert import [HOSTNAME+] /path/to/certs [/other/paths/]+", + "Copies certificates to "..cert_basedir); + return 1; + end + local owner, group; + if pposix.getuid() == 0 then -- We need root to change ownership + owner = configmanager.get("*", "prosody_user") or "prosody"; + group = configmanager.get("*", "prosody_group") or owner; + end + local cm = require "core.certmanager"; + local imported = {}; + for _, host in ipairs(hostnames) do + for _, dir in ipairs(arg) do + local paths = cm.find_cert(dir, host); + if paths then + copy(paths.certificate, cert_basedir .. "/" .. host .. ".crt", nil, owner, group); + copy(paths.key, cert_basedir .. "/" .. host .. ".key", "0377", owner, group); + table.insert(imported, host); + else + -- TODO Say where we looked + pctl.show_warning("No certificate for host "..host.." found :("); + end + -- TODO Additional checks + -- Certificate names matches the hostname + -- Private key matches public key in certificate + end + end + if imported[1] then + pctl.show_message("Imported certificate and key for hosts %s", table.concat(imported, ", ")); + local ok, err = pctl.reload(); + if not ok and err ~= "not-running" then + pctl.show_message(pctl.error_messages[err]); + end + else + pctl.show_warning("No certificates imported :("); + return 1; + end +end + +local function cert(arg) + if #arg >= 1 and arg[1] ~= "--help" then + openssl = require "util.openssl"; + lfs = require "lfs"; + local cert_dir_attrs = lfs.attributes(cert_basedir); + if not cert_dir_attrs then + pctl.show_warning("The directory "..cert_basedir.." does not exist"); + return 1; -- TODO Should we create it? + end + local uid = pposix.getuid(); + if uid ~= 0 and uid ~= cert_dir_attrs.uid then + pctl.show_warning("The directory "..cert_basedir.." is not owned by the current user, won't be able to write files to it"); + return 1; + elseif not cert_dir_attrs.permissions then -- COMPAT with LuaFilesystem < 1.6.2 (hey CentOS!) + pctl.show_message("Unable to check permissions on %s (LuaFilesystem 1.6.2+ required)", cert_basedir); + pctl.show_message("Please confirm that Prosody (and only Prosody) can write to this directory)"); + elseif cert_dir_attrs.permissions:match("^%.w..%-..%-.$") then + pctl.show_warning("The directory "..cert_basedir.." not only writable by its owner"); + return 1; + end + local subcmd = table.remove(arg, 1); + if type(cert_commands[subcmd]) == "function" then + if subcmd ~= "import" then -- hostnames are optional for import + if not arg[1] then + pctl.show_message"You need to supply at least one hostname" + arg = { "--help" }; + end + if arg[1] ~= "--help" and not prosody.hosts[arg[1]] then + pctl.show_message(pctl.error_messages["no-such-host"]); + return 1; + end + end + return cert_commands[subcmd](arg); + elseif subcmd == "check" then + return require "util.prosodyctl.check".check({"certs"}); + end + end + pctl.show_usage("cert config|request|generate|key|import", "Helpers for generating X.509 certificates and keys.") + for _, cmd in pairs(cert_commands) do + print() + cmd{ "--help" } + end +end + +return { + cert = cert; +}; diff --git a/util/prosodyctl/check.lua b/util/prosodyctl/check.lua new file mode 100644 index 00000000..2c102ec2 --- /dev/null +++ b/util/prosodyctl/check.lua @@ -0,0 +1,868 @@ +local configmanager = require "core.configmanager"; +local show_usage = require "util.prosodyctl".show_usage; +local show_warning = require "util.prosodyctl".show_warning; +local is_prosody_running = require "util.prosodyctl".isrunning; +local dependencies = require "util.dependencies"; +local socket = require "socket"; +local socket_url = require "socket.url"; +local jid_split = require "util.jid".prepped_split; +local modulemanager = require "core.modulemanager"; +local async = require "util.async"; +local httputil = require "util.http"; + +local function check_ojn(check_type, target_host) + local http = require "net.http"; -- .new({}); + local json = require "util.json"; + + local response, err = async.wait_for(http.request( + ("https://observe.jabber.network/api/v1/check/%s"):format(httputil.urlencode(check_type)), + { + method="POST", + headers={["Accept"] = "application/json"; ["Content-Type"] = "application/json"}, + body=json.encode({target=target_host}), + })); + + if not response then + return false, err; + end + + if response.code ~= 200 then + return false, ("API replied with non-200 code: %d"):format(response.code); + end + + local decoded_body, err = json.decode(response.body); + if decoded_body == nil then + return false, ("Failed to parse API JSON: %s"):format(err) + end + + local success = decoded_body["success"]; + return success == true, nil; +end + +local function check_probe(base_url, probe_module, target) + local http = require "net.http"; -- .new({}); + local params = httputil.formencode({ module = probe_module; target = target }) + local response, err = async.wait_for(http.request(base_url .. "?" .. params)); + + if not response then return false, err; end + + if response.code ~= 200 then return false, ("API replied with non-200 code: %d"):format(response.code); end + + for line in response.body:gmatch("[^\r\n]+") do + local probe_success = line:match("^probe_success%s+(%d+)"); + + if probe_success == "1" then + return true; + elseif probe_success == "0" then + return false; + end + end + return false, "Probe endpoint did not return a success status"; +end + +local function skip_bare_jid_hosts(host) + if jid_split(host) then + -- See issue #779 + return false; + end + return true; +end + +local function check(arg) + if arg[1] == "--help" then + show_usage([[check]], [[Perform basic checks on your Prosody installation]]); + return 1; + end + local what = table.remove(arg, 1); + local array = require "util.array"; + local set = require "util.set"; + local it = require "util.iterators"; + local ok = true; + local function disabled_hosts(host, conf) return host ~= "*" and conf.enabled ~= false; end + local function enabled_hosts() return it.filter(disabled_hosts, pairs(configmanager.getconfig())); end + if not (what == nil or what == "disabled" or what == "config" or what == "dns" or what == "certs" or what == "connectivity") then + show_warning("Don't know how to check '%s'. Try one of 'config', 'dns', 'certs', 'disabled' or 'connectivity'.", what); + show_warning("Note: The connectivity check will connect to a remote server."); + return 1; + end + if not what or what == "disabled" then + local disabled_hosts_set = set.new(); + for host, host_options in it.filter("*", pairs(configmanager.getconfig())) do + if host_options.enabled == false then + disabled_hosts_set:add(host); + end + end + if not disabled_hosts_set:empty() then + local msg = "Checks will be skipped for these disabled hosts: %s"; + if what then msg = "These hosts are disabled: %s"; end + show_warning(msg, tostring(disabled_hosts_set)); + if what then return 0; end + print"" + end + end + if not what or what == "config" then + print("Checking config..."); + local obsolete = set.new({ --> remove + "cross_domain_bosh", + "cross_domain_websocket", + }); + local deprecated_replacements = { + anonymous_login = "use 'authentication = \"anonymous\"'", + daemonize = "use the --daemonize/-D or --foreground/-F command line flags", + disallow_s2s = "add \"s2s\" to 'modules_disabled'", + no_daemonize = "use the --daemonize/-D or --foreground/-F flags", + require_encryption = "use 'c2s_require_encryption' and 's2s_require_encryption'", + vcard_compatibility = "use 'mod_compat_vcard' from prosody-modules", + use_libevent = "use 'network_backend = \"event\"'", + whitelist_registration_only = "use 'allowlist_registration_only'", + registration_whitelist = "use 'registration_allowlist'", + registration_blacklist = "use 'registration_blocklist'", + blacklist_on_registration_throttle_overload = "use 'blocklist_on_registration_throttle_overload'", + }; + -- FIXME all the singular _port and _interface options are supposed to be deprecated too + local deprecated_ports = { bosh = "http", legacy_ssl = "c2s_direct_tls" }; + local port_suffixes = set.new({ "port", "ports", "interface", "interfaces", "ssl" }); + for port, replacement in pairs(deprecated_ports) do + for suffix in port_suffixes do + local rsuffix = (suffix == "port" or suffix == "interface") and suffix.."s" or suffix; + deprecated_replacements[port.."_"..suffix] = "use '"..replacement.."_"..rsuffix.."'" + end + end + local deprecated = set.new(array.collect(it.keys(deprecated_replacements))); + local known_global_options = set.new({ + "access_control_allow_credentials", + "access_control_allow_headers", + "access_control_allow_methods", + "access_control_max_age", + "admin_socket", + "body_size_limit", + "bosh_max_inactivity", + "bosh_max_polling", + "bosh_max_wait", + "buffer_size_limit", + "c2s_close_timeout", + "c2s_stanza_size_limit", + "c2s_tcp_keepalives", + "c2s_timeout", + "component_stanza_size_limit", + "component_tcp_keepalives", + "consider_bosh_secure", + "consider_websocket_secure", + "console_banner", + "console_prettyprint_settings", + "cross_domain_bosh", + "cross_domain_websocket", + "daemonize", + "gc", + "http_default_host", + "http_errors_always_show", + "http_errors_default_message", + "http_errors_detailed", + "http_errors_messages", + "http_max_buffer_size", + "http_max_content_size", + "installer_plugin_path", + "limits", + "limits_resolution", + "log", + "multiplex_buffer_size", + "network_backend", + "network_default_read_size", + "network_settings", + "openmetrics_allow_cidr", + "openmetrics_allow_ips", + "pidfile", + "plugin_paths", + "plugin_server", + "prosodyctl_timeout", + "prosody_group", + "prosody_user", + "run_as_root", + "s2s_close_timeout", + "s2s_insecure_domains", + "s2s_require_encryption", + "s2s_secure_auth", + "s2s_secure_domains", + "s2s_stanza_size_limit", + "s2s_tcp_keepalives", + "s2s_timeout", + "statistics", + "statistics_config", + "statistics_interval", + "tcp_keepalives", + "trusted_proxies", + "umask", + "use_dane", + "use_ipv4", + "use_ipv6", + "websocket_frame_buffer_limit", + "websocket_frame_fragment_limit", + "websocket_get_response_body", + "websocket_get_response_text", + }); + local config = configmanager.getconfig(); + -- Check that we have any global options (caused by putting a host at the top) + if it.count(it.filter("log", pairs(config["*"]))) == 0 then + ok = false; + print(""); + print(" No global options defined. Perhaps you have put a host definition at the top") + print(" of the config file? They should be at the bottom, see https://prosody.im/doc/configure#overview"); + end + if it.count(enabled_hosts()) == 0 then + ok = false; + print(""); + if it.count(it.filter("*", pairs(config))) == 0 then + print(" No hosts are defined, please add at least one VirtualHost section") + elseif config["*"]["enabled"] == false then + print(" No hosts are enabled. Remove enabled = false from the global section or put enabled = true under at least one VirtualHost section") + else + print(" All hosts are disabled. Remove enabled = false from at least one VirtualHost section") + end + end + if not config["*"].modules_enabled then + print(" No global modules_enabled is set?"); + local suggested_global_modules; + for host, options in enabled_hosts() do --luacheck: ignore 213/host + if not options.component_module and options.modules_enabled then + suggested_global_modules = set.intersection(suggested_global_modules or set.new(options.modules_enabled), set.new(options.modules_enabled)); + end + end + if suggested_global_modules and not suggested_global_modules:empty() then + print(" Consider moving these modules into modules_enabled in the global section:") + print(" "..tostring(suggested_global_modules / function (x) return ("%q"):format(x) end)); + end + print(); + end + + do -- Check for modules enabled both normally and as components + local modules = set.new(config["*"]["modules_enabled"]); + for host, options in enabled_hosts() do + local component_module = options.component_module; + if component_module and modules:contains(component_module) then + print((" mod_%s is enabled both in modules_enabled and as Component %q %q"):format(component_module, host, component_module)); + print(" This means the service is enabled on all VirtualHosts as well as the Component."); + print(" Are you sure this what you want? It may cause unexpected behaviour."); + end + end + end + + -- Check for global options under hosts + local global_options = set.new(it.to_array(it.keys(config["*"]))); + local obsolete_global_options = set.intersection(global_options, obsolete); + if not obsolete_global_options:empty() then + print(""); + print(" You have some obsolete options you can remove from the global section:"); + print(" "..tostring(obsolete_global_options)) + ok = false; + end + local deprecated_global_options = set.intersection(global_options, deprecated); + if not deprecated_global_options:empty() then + print(""); + print(" You have some deprecated options in the global section:"); + for option in deprecated_global_options do + print((" '%s' -- instead, %s"):format(option, deprecated_replacements[option])); + end + ok = false; + end + for host, options in it.filter(function (h) return h ~= "*" end, pairs(configmanager.getconfig())) do + local host_options = set.new(it.to_array(it.keys(options))); + local misplaced_options = set.intersection(host_options, known_global_options); + for name in pairs(options) do + if name:match("^interfaces?") + or name:match("_ports?$") or name:match("_interfaces?$") + or (name:match("_ssl$") and not name:match("^[cs]2s_ssl$")) then + misplaced_options:add(name); + end + end + -- FIXME These _could_ be misplaced, but we would have to check where the corresponding module is loaded to be sure + misplaced_options:exclude(set.new({ "external_service_port", "turn_external_port" })); + if not misplaced_options:empty() then + ok = false; + print(""); + local n = it.count(misplaced_options); + print(" You have "..n.." option"..(n>1 and "s " or " ").."set under "..host.." that should be"); + print(" in the global section of the config file, above any VirtualHost or Component definitions,") + print(" see https://prosody.im/doc/configure#overview for more information.") + print(""); + print(" You need to move the following option"..(n>1 and "s" or "")..": "..table.concat(it.to_array(misplaced_options), ", ")); + end + end + for host, options in enabled_hosts() do + local host_options = set.new(it.to_array(it.keys(options))); + local subdomain = host:match("^[^.]+"); + if not(host_options:contains("component_module")) and (subdomain == "jabber" or subdomain == "xmpp" + or subdomain == "chat" or subdomain == "im") then + print(""); + print(" Suggestion: If "..host.. " is a new host with no real users yet, consider renaming it now to"); + print(" "..host:gsub("^[^.]+%.", "")..". You can use SRV records to redirect XMPP clients and servers to "..host.."."); + print(" For more information see: https://prosody.im/doc/dns"); + end + end + local all_modules = set.new(config["*"].modules_enabled); + local all_options = set.new(it.to_array(it.keys(config["*"]))); + for host in enabled_hosts() do + all_options:include(set.new(it.to_array(it.keys(config[host])))); + all_modules:include(set.new(config[host].modules_enabled)); + end + for mod in all_modules do + if mod:match("^mod_") then + print(""); + print(" Modules in modules_enabled should not have the 'mod_' prefix included."); + print(" Change '"..mod.."' to '"..mod:match("^mod_(.*)").."'."); + elseif mod:match("^auth_") then + print(""); + print(" Authentication modules should not be added to modules_enabled,"); + print(" but be specified in the 'authentication' option."); + print(" Remove '"..mod.."' from modules_enabled and instead add"); + print(" authentication = '"..mod:match("^auth_(.*)").."'"); + print(" For more information see https://prosody.im/doc/authentication"); + elseif mod:match("^storage_") then + print(""); + print(" storage modules should not be added to modules_enabled,"); + print(" but be specified in the 'storage' option."); + print(" Remove '"..mod.."' from modules_enabled and instead add"); + print(" storage = '"..mod:match("^storage_(.*)").."'"); + print(" For more information see https://prosody.im/doc/storage"); + end + end + if all_modules:contains("vcard") and all_modules:contains("vcard_legacy") then + print(""); + print(" Both mod_vcard_legacy and mod_vcard are enabled but they conflict"); + print(" with each other. Remove one."); + end + if all_modules:contains("pep") and all_modules:contains("pep_simple") then + print(""); + print(" Both mod_pep_simple and mod_pep are enabled but they conflict"); + print(" with each other. Remove one."); + end + for host, host_config in pairs(config) do --luacheck: ignore 213/host + if type(rawget(host_config, "storage")) == "string" and rawget(host_config, "default_storage") then + print(""); + print(" The 'default_storage' option is not needed if 'storage' is set to a string."); + break; + end + end + local require_encryption = set.intersection(all_options, set.new({ + "require_encryption", "c2s_require_encryption", "s2s_require_encryption" + })):empty(); + local ssl = dependencies.softreq"ssl"; + if not ssl then + if not require_encryption then + print(""); + print(" You require encryption but LuaSec is not available."); + print(" Connections will fail."); + ok = false; + end + elseif not ssl.loadcertificate then + if all_options:contains("s2s_secure_auth") then + print(""); + print(" You have set s2s_secure_auth but your version of LuaSec does "); + print(" not support certificate validation, so all s2s connections will"); + print(" fail."); + ok = false; + elseif all_options:contains("s2s_secure_domains") then + local secure_domains = set.new(); + for host in enabled_hosts() do + if config[host].s2s_secure_auth == true then + secure_domains:add("*"); + else + secure_domains:include(set.new(config[host].s2s_secure_domains)); + end + end + if not secure_domains:empty() then + print(""); + print(" You have set s2s_secure_domains but your version of LuaSec does "); + print(" not support certificate validation, so s2s connections to/from "); + print(" these domains will fail."); + ok = false; + end + end + elseif require_encryption and not all_modules:contains("tls") then + print(""); + print(" You require encryption but mod_tls is not enabled."); + print(" Connections will fail."); + ok = false; + end + + print("Done.\n"); + end + if not what or what == "dns" then + local dns = require "net.dns"; + pcall(function () + local unbound = require"net.unbound"; + local unbound_config = configmanager.get("*", "unbound") or {}; + unbound_config.hoststxt = false; -- don't look at /etc/hosts + configmanager.set("*", "unbound", unbound_config); + unbound.purge(); -- ensure the above config is used + dns = unbound.dns; + end) + local idna = require "util.encodings".idna; + local ip = require "util.ip"; + local c2s_ports = set.new(configmanager.get("*", "c2s_ports") or {5222}); + local s2s_ports = set.new(configmanager.get("*", "s2s_ports") or {5269}); + local c2s_tls_ports = set.new(configmanager.get("*", "c2s_direct_tls_ports") or {}); + local s2s_tls_ports = set.new(configmanager.get("*", "s2s_direct_tls_ports") or {}); + + local c2s_srv_required, s2s_srv_required, c2s_tls_srv_required, s2s_tls_srv_required; + if not c2s_ports:contains(5222) then + c2s_srv_required = true; + end + if not s2s_ports:contains(5269) then + s2s_srv_required = true; + end + if not c2s_tls_ports:empty() then + c2s_tls_srv_required = true; + end + if not s2s_tls_ports:empty() then + s2s_tls_srv_required = true; + end + + local problem_hosts = set.new(); + + local external_addresses, internal_addresses = set.new(), set.new(); + + local fqdn = socket.dns.tohostname(socket.dns.gethostname()); + if fqdn then + do + local res = dns.lookup(idna.to_ascii(fqdn), "A"); + if res then + for _, record in ipairs(res) do + external_addresses:add(record.a); + end + end + end + do + local res = dns.lookup(idna.to_ascii(fqdn), "AAAA"); + if res then + for _, record in ipairs(res) do + external_addresses:add(record.aaaa); + end + end + end + end + + local local_addresses = require"util.net".local_addresses() or {}; + + for addr in it.values(local_addresses) do + if not ip.new_ip(addr).private then + external_addresses:add(addr); + else + internal_addresses:add(addr); + end + end + + if external_addresses:empty() then + print(""); + print(" Failed to determine the external addresses of this server. Checks may be inaccurate."); + c2s_srv_required, s2s_srv_required = true, true; + end + + local v6_supported = not not socket.tcp6; + local use_ipv4 = configmanager.get("*", "use_ipv4") ~= false; + local use_ipv6 = v6_supported and configmanager.get("*", "use_ipv6") ~= false; + + local function trim_dns_name(n) + return (n:gsub("%.$", "")); + end + + for jid, host_options in enabled_hosts() do + local all_targets_ok, some_targets_ok = true, false; + local node, host = jid_split(jid); + + local modules, component_module = modulemanager.get_modules_for_host(host); + if component_module then + modules:add(component_module); + end + + local is_component = not not host_options.component_module; + print("Checking DNS for "..(is_component and "component" or "host").." "..jid.."..."); + if node then + print("Only the domain part ("..host..") is used in DNS.") + end + local target_hosts = set.new(); + if modules:contains("c2s") then + local res = dns.lookup("_xmpp-client._tcp."..idna.to_ascii(host)..".", "SRV"); + if res and #res > 0 then + for _, record in ipairs(res) do + if record.srv.target == "." then -- TODO is this an error if mod_c2s is enabled? + print(" 'xmpp-client' service disabled by pointing to '.'"); -- FIXME Explain better what this is + break; + end + local target = trim_dns_name(record.srv.target); + target_hosts:add(target); + if not c2s_ports:contains(record.srv.port) then + print(" SRV target "..target.." contains unknown client port: "..record.srv.port); + end + end + else + if c2s_srv_required then + print(" No _xmpp-client SRV record found for "..host..", but it looks like you need one."); + all_targets_ok = false; + else + target_hosts:add(host); + end + end + end + if modules:contains("c2s") and c2s_tls_srv_required then + local res = dns.lookup("_xmpps-client._tcp."..idna.to_ascii(host)..".", "SRV"); + if res and #res > 0 then + for _, record in ipairs(res) do + if record.srv.target == "." then -- TODO is this an error if mod_c2s is enabled? + print(" 'xmpps-client' service disabled by pointing to '.'"); -- FIXME Explain better what this is + break; + end + local target = trim_dns_name(record.srv.target); + target_hosts:add(target); + if not c2s_tls_ports:contains(record.srv.port) then + print(" SRV target "..target.." contains unknown Direct TLS client port: "..record.srv.port); + end + end + else + print(" No _xmpps-client SRV record found for "..host..", but it looks like you need one."); + all_targets_ok = false; + end + end + if modules:contains("s2s") then + local res = dns.lookup("_xmpp-server._tcp."..idna.to_ascii(host)..".", "SRV"); + if res and #res > 0 then + for _, record in ipairs(res) do + if record.srv.target == "." then -- TODO Is this an error if mod_s2s is enabled? + print(" 'xmpp-server' service disabled by pointing to '.'"); -- FIXME Explain better what this is + break; + end + local target = trim_dns_name(record.srv.target); + target_hosts:add(target); + if not s2s_ports:contains(record.srv.port) then + print(" SRV target "..target.." contains unknown server port: "..record.srv.port); + end + end + else + if s2s_srv_required then + print(" No _xmpp-server SRV record found for "..host..", but it looks like you need one."); + all_targets_ok = false; + else + target_hosts:add(host); + end + end + end + if modules:contains("s2s") and s2s_tls_srv_required then + local res = dns.lookup("_xmpps-server._tcp."..idna.to_ascii(host)..".", "SRV"); + if res and #res > 0 then + for _, record in ipairs(res) do + if record.srv.target == "." then -- TODO is this an error if mod_s2s is enabled? + print(" 'xmpps-server' service disabled by pointing to '.'"); -- FIXME Explain better what this is + break; + end + local target = trim_dns_name(record.srv.target); + target_hosts:add(target); + if not s2s_tls_ports:contains(record.srv.port) then + print(" SRV target "..target.." contains unknown Direct TLS server port: "..record.srv.port); + end + end + else + print(" No _xmpps-server SRV record found for "..host..", but it looks like you need one."); + all_targets_ok = false; + end + end + if target_hosts:empty() then + target_hosts:add(host); + end + + if target_hosts:contains("localhost") then + print(" Target 'localhost' cannot be accessed from other servers"); + target_hosts:remove("localhost"); + end + + if modules:contains("proxy65") then + local proxy65_target = configmanager.get(host, "proxy65_address") or host; + if type(proxy65_target) == "string" then + local A, AAAA = dns.lookup(idna.to_ascii(proxy65_target), "A"), dns.lookup(idna.to_ascii(proxy65_target), "AAAA"); + local prob = {}; + if use_ipv4 and not A then + table.insert(prob, "A"); + end + if use_ipv6 and not AAAA then + table.insert(prob, "AAAA"); + end + if #prob > 0 then + print(" File transfer proxy "..proxy65_target.." has no "..table.concat(prob, "/") + .." record. Create one or set 'proxy65_address' to the correct host/IP."); + end + else + print(" proxy65_address for "..host.." should be set to a string, unable to perform DNS check"); + end + end + + if not use_ipv4 and not use_ipv6 then + print(" Both IPv6 and IPv4 are disabled, Prosody will not listen on any ports"); + print(" nor be able to connect to any remote servers."); + all_targets_ok = false; + end + + for target_host in target_hosts do + local host_ok_v4, host_ok_v6; + do + local res = dns.lookup(idna.to_ascii(target_host), "A"); + if res then + for _, record in ipairs(res) do + if external_addresses:contains(record.a) then + some_targets_ok = true; + host_ok_v4 = true; + elseif internal_addresses:contains(record.a) then + host_ok_v4 = true; + some_targets_ok = true; + print(" "..target_host.." A record points to internal address, external connections might fail"); + else + print(" "..target_host.." A record points to unknown address "..record.a); + all_targets_ok = false; + end + end + end + end + do + local res = dns.lookup(idna.to_ascii(target_host), "AAAA"); + if res then + for _, record in ipairs(res) do + if external_addresses:contains(record.aaaa) then + some_targets_ok = true; + host_ok_v6 = true; + elseif internal_addresses:contains(record.aaaa) then + host_ok_v6 = true; + some_targets_ok = true; + print(" "..target_host.." AAAA record points to internal address, external connections might fail"); + else + print(" "..target_host.." AAAA record points to unknown address "..record.aaaa); + all_targets_ok = false; + end + end + end + end + + if host_ok_v4 and not use_ipv4 then + print(" Host "..target_host.." does seem to resolve to this server but IPv4 has been disabled"); + all_targets_ok = false; + end + + if host_ok_v6 and not use_ipv6 then + print(" Host "..target_host.." does seem to resolve to this server but IPv6 has been disabled"); + all_targets_ok = false; + end + + local bad_protos = {} + if use_ipv4 and not host_ok_v4 then + table.insert(bad_protos, "IPv4"); + end + if use_ipv6 and not host_ok_v6 then + table.insert(bad_protos, "IPv6"); + end + if #bad_protos > 0 then + print(" Host "..target_host.." does not seem to resolve to this server ("..table.concat(bad_protos, "/")..")"); + end + if host_ok_v6 and not v6_supported then + print(" Host "..target_host.." has AAAA records, but your version of LuaSocket does not support IPv6."); + print(" Please see https://prosody.im/doc/ipv6 for more information."); + elseif host_ok_v6 and not use_ipv6 then + print(" Host "..target_host.." has AAAA records, but IPv6 is disabled."); + -- TODO Tell them to drop the AAAA records or enable IPv6? + print(" Please see https://prosody.im/doc/ipv6 for more information."); + end + end + if not all_targets_ok then + print(" "..(some_targets_ok and "Only some" or "No").." targets for "..host.." appear to resolve to this server."); + if is_component then + print(" DNS records are necessary if you want users on other servers to access this component."); + end + problem_hosts:add(host); + end + print(""); + end + if not problem_hosts:empty() then + print(""); + print("For more information about DNS configuration please see https://prosody.im/doc/dns"); + print(""); + ok = false; + end + end + if not what or what == "certs" then + local cert_ok; + print"Checking certificates..." + local x509_verify_identity = require"util.x509".verify_identity; + local create_context = require "core.certmanager".create_context; + local ssl = dependencies.softreq"ssl"; + -- local datetime_parse = require"util.datetime".parse_x509; + local load_cert = ssl and ssl.loadcertificate; + -- or ssl.cert_from_pem + if not ssl then + print("LuaSec not available, can't perform certificate checks") + if what == "certs" then cert_ok = false end + elseif not load_cert then + print("This version of LuaSec (" .. ssl._VERSION .. ") does not support certificate checking"); + cert_ok = false + else + for host in it.filter(skip_bare_jid_hosts, enabled_hosts()) do + print("Checking certificate for "..host); + -- First, let's find out what certificate this host uses. + local host_ssl_config = configmanager.rawget(host, "ssl") + or configmanager.rawget(host:match("%.(.*)"), "ssl"); + local global_ssl_config = configmanager.rawget("*", "ssl"); + local ok, err, ssl_config = create_context(host, "server", host_ssl_config, global_ssl_config); + if not ok then + print(" Error: "..err); + cert_ok = false + elseif not ssl_config.certificate then + print(" No 'certificate' found for "..host) + cert_ok = false + elseif not ssl_config.key then + print(" No 'key' found for "..host) + cert_ok = false + else + local key, err = io.open(ssl_config.key); -- Permissions check only + if not key then + print(" Could not open "..ssl_config.key..": "..err); + cert_ok = false + else + key:close(); + end + local cert_fh, err = io.open(ssl_config.certificate); -- Load the file. + if not cert_fh then + print(" Could not open "..ssl_config.certificate..": "..err); + cert_ok = false + else + print(" Certificate: "..ssl_config.certificate) + local cert = load_cert(cert_fh:read"*a"); cert_fh:close(); + if not cert:validat(os.time()) then + print(" Certificate has expired.") + cert_ok = false + elseif not cert:validat(os.time() + 86400) then + print(" Certificate expires within one day.") + cert_ok = false + elseif not cert:validat(os.time() + 86400*7) then + print(" Certificate expires within one week.") + elseif not cert:validat(os.time() + 86400*31) then + print(" Certificate expires within one month.") + end + if configmanager.get(host, "component_module") == nil + and not x509_verify_identity(host, "_xmpp-client", cert) then + print(" Not valid for client connections to "..host..".") + cert_ok = false + end + if (not (configmanager.get(host, "anonymous_login") + or configmanager.get(host, "authentication") == "anonymous")) + and not x509_verify_identity(host, "_xmpp-server", cert) then + print(" Not valid for server-to-server connections to "..host..".") + cert_ok = false + end + end + end + end + end + if cert_ok == false then + print("") + print("For more information about certificates please see https://prosody.im/doc/certificates"); + ok = false + end + print("") + end + -- intentionally not doing this by default + if what == "connectivity" then + local _, prosody_is_running = is_prosody_running(); + if configmanager.get("*", "pidfile") and not prosody_is_running then + print("Prosody does not appear to be running, which is required for this test."); + print("Start it and then try again."); + return 1; + end + + local checker = "observe.jabber.network"; + local probe_instance; + local probe_modules = { + ["xmpp-client"] = "c2s_normal_auth"; + ["xmpp-server"] = "s2s_normal"; + ["xmpps-client"] = nil; -- TODO + ["xmpps-server"] = nil; -- TODO + }; + local probe_settings = configmanager.get("*", "connectivity_probe"); + if type(probe_settings) == "string" then + probe_instance = probe_settings; + elseif type(probe_settings) == "table" and type(probe_settings.url) == "string" then + probe_instance = probe_settings.url; + if type(probe_settings.modules) == "table" then + probe_modules = probe_settings.modules; + end + elseif probe_settings ~= nil then + print("The 'connectivity_probe' setting not understood."); + print("Expected an URL or a table with 'url' and 'modules' fields"); + print("See https://prosody.im/doc/prosodyctl#check for more information."); -- FIXME + return 1; + end + + local check_api; + if probe_instance then + local parsed_url = socket_url.parse(probe_instance); + if not parsed_url then + print(("'connectivity_probe' is not a valid URL: %q"):format(probe_instance)); + print("Set it to the URL of an XMPP Blackbox Exporter instance and try again"); + return 1; + end + checker = parsed_url.host; + + function check_api(protocol, host) + local target = socket_url.build({scheme="xmpp",path=host}); + local probe_module = probe_modules[protocol]; + if not probe_module then + return nil, "Checking protocol '"..protocol.."' is currently unsupported"; + end + return check_probe(probe_instance, probe_module, target); + end + else + check_api = check_ojn; + end + + for host in it.filter(skip_bare_jid_hosts, enabled_hosts()) do + local modules, component_module = modulemanager.get_modules_for_host(host); + if component_module then + modules:add(component_module) + end + + print("Checking external connectivity for "..host.." via "..checker) + local function check_connectivity(protocol) + local success, err = check_api(protocol, host); + if not success and err ~= nil then + print((" %s: Failed to request check at API: %s"):format(protocol, err)) + elseif success then + print((" %s: Works"):format(protocol)) + else + print((" %s: Check service failed to establish (secure) connection"):format(protocol)) + ok = false + end + end + + if modules:contains("c2s") then + check_connectivity("xmpp-client") + if configmanager.get("*", "c2s_direct_tls_ports") then + check_connectivity("xmpps-client"); + end + end + + if modules:contains("s2s") then + check_connectivity("xmpp-server") + if configmanager.get("*", "s2s_direct_tls_ports") then + check_connectivity("xmpps-server"); + end + end + + print() + end + print("Note: The connectivity check only checks the reachability of the domain.") + print("Note: It does not ensure that the check actually reaches this specific prosody instance.") + end + if not ok then + print("Problems found, see above."); + else + print("All checks passed, congratulations!"); + end + return ok and 0 or 2; +end + +return { + check = check; +}; diff --git a/util/prosodyctl/shell.lua b/util/prosodyctl/shell.lua new file mode 100644 index 00000000..bce27b94 --- /dev/null +++ b/util/prosodyctl/shell.lua @@ -0,0 +1,148 @@ +local config = require "core.configmanager"; +local server = require "net.server"; +local st = require "util.stanza"; +local path = require "util.paths"; +local parse_args = require "util.argparse".parse; +local unpack = table.unpack or _G.unpack; + +local have_readline, readline = pcall(require, "readline"); + +local adminstream = require "util.adminstream"; + +if have_readline then + readline.set_readline_name("prosody"); + readline.set_options({ + histfile = path.join(prosody.paths.data, ".shell_history"); + ignoredups = true; + }); +end + +local function read_line(prompt_string) + if have_readline then + return readline.readline(prompt_string); + else + io.write(prompt_string); + return io.read("*line"); + end +end + +local function send_line(client, line) + client.send(st.stanza("repl-input"):text(line)); +end + +local function repl(client) + local line = read_line(client.prompt_string or "prosody> "); + if not line or line == "quit" or line == "exit" or line == "bye" then + if not line then + print(""); + end + if have_readline then + readline.save_history(); + end + os.exit(); + end + send_line(client, line); +end + +local function printbanner() + local banner = config.get("*", "console_banner"); + if banner then return print(banner); end + print([[ + ____ \ / _ + | _ \ _ __ ___ ___ _-_ __| |_ _ + | |_) | '__/ _ \/ __|/ _ \ / _` | | | | + | __/| | | (_) \__ \ |_| | (_| | |_| | + |_| |_| \___/|___/\___/ \__,_|\__, | + A study in simplicity |___/ + +]]); + print("Welcome to the Prosody administration console. For a list of commands, type: help"); + print("You may find more help on using this console in our online documentation at "); + print("https://prosody.im/doc/console\n"); +end + +local function start(arg) --luacheck: ignore 212/arg + local client = adminstream.client(); + local opts, err, where = parse_args(arg); + + if not opts then + if err == "param-not-found" then + print("Unknown command-line option: "..tostring(where)); + elseif err == "missing-value" then + print("Expected a value to follow command-line option: "..where); + end + os.exit(1); + end + + if arg[1] then + if arg[2] then + -- prosodyctl shell module reload foo bar.com --> module:reload("foo", "bar.com") + -- COMPAT Lua 5.1 doesn't have the separator argument to string.rep + arg[1] = string.format("%s:%s("..string.rep("%q, ", #arg-2):sub(1, -3)..")", unpack(arg)); + end + + client.events.add_handler("connected", function() + client.send(st.stanza("repl-input"):text(arg[1])); + return true; + end, 1); + + local errors = 0; -- TODO This is weird, but works for now. + client.events.add_handler("received", function(stanza) + if stanza.name == "repl-output" or stanza.name == "repl-result" then + if stanza.attr.type == "error" then + errors = errors + 1; + io.stderr:write(stanza:get_text(), "\n"); + else + print(stanza:get_text()); + end + end + if stanza.name == "repl-result" then + os.exit(errors); + end + return true; + end, 1); + end + + client.events.add_handler("connected", function () + if not opts.quiet then + printbanner(); + end + repl(client); + end); + + client.events.add_handler("disconnected", function () + print("--- session closed ---"); + os.exit(); + end); + + client.events.add_handler("received", function (stanza) + if stanza.name == "repl-output" or stanza.name == "repl-result" then + local result_prefix = stanza.attr.type == "error" and "!" or "|"; + print(result_prefix.." "..stanza:get_text()); + end + if stanza.name == "repl-result" then + repl(client); + end + end); + + client.prompt_string = config.get("*", "admin_shell_prompt"); + + local socket_path = path.resolve_relative_path(prosody.paths.data, opts.socket or config.get("*", "admin_socket") or "prosody.sock"); + local conn = adminstream.connection(socket_path, client.listeners); + local ok, err = conn:connect(); + if not ok then + if err == "no unix socket support" then + print("** LuaSocket unix socket support not available or incompatible, ensure your"); + print("** version is up to date."); + else + print("** Unable to connect to server - is it running? Is mod_admin_shell enabled?"); + print("** Connection error: "..err); + end + os.exit(1); + end + server.loop(); +end + +return { + shell = start; +}; |