mod_admin_telnet: Become a front for mod_admin_shell

1 files changed, 35 insertions, 1588 deletions

diff --git a/plugins/mod_admin_telnet.lua b/plugins/mod_admin_telnet.lua
index a082a851..ec8ff136 100644
--- a/plugins/mod_admin_telnet.lua
+++ b/plugins/mod_admin_telnet.lua
@@ -8,46 +8,37 @@
 -- luacheck: ignore 212/self
 
 module:set_global();
-
-local hostmanager = require "core.hostmanager";
-local modulemanager = require "core.modulemanager";
-local s2smanager = require "core.s2smanager";
-local portmanager = require "core.portmanager";
-local helpers = require "util.helpers";
-local server = require "net.server";
-
-local _G = _G;
-
-local prosody = _G.prosody;
+module:depends("admin_shell");
 
 local console_listener = { default_port = 5582; default_mode = "*a"; interface = "127.0.0.1" };
 
-local unpack = table.unpack or unpack; -- luacheck: ignore 113
-local iterators = require "util.iterators";
-local keys, values = iterators.keys, iterators.values;
-local jid_bare, jid_split, jid_join = import("util.jid", "bare", "prepped_split", "join");
-local set, array = require "util.set", require "util.array";
-local cert_verify_identity = require "util.x509".verify_identity;
-local envload = require "util.envload".envload;
-local envloadfile = require "util.envload".envloadfile;
-local has_pposix, pposix = pcall(require, "util.pposix");
 local async = require "util.async";
-local serialization = require "util.serialization";
-local serialize_config = serialization.new ({ fatal = false, unquoted = true});
-local time = require "util.time";
+local st = require "util.stanza";
 
-local commands = module:shared("commands")
-local def_env = module:shared("env");
+local def_env = module:shared("admin_shell/env");
 local default_env_mt = { __index = def_env };
 
-local function redirect_output(target, session)
-	local env = setmetatable({ print = session.print }, { __index = function (_, k) return rawget(target, k); end });
-	env.dofile = function(name)
-		local f, err = envloadfile(name, env);
-		if not f then return f, err; end
-		return f();
-	end;
-	return env;
+local function printbanner(session)
+	local option = module:get_option_string("console_banner", "full");
+	if option == "full" or option == "graphic" then
+		session.print [[
+                   ____                \   /     _
+                    |  _ \ _ __ ___  ___  _-_   __| |_   _
+                    | |_) | '__/ _ \/ __|/ _ \ / _` | | | |
+                    |  __/| | | (_) \__ \ |_| | (_| | |_| |
+                    |_|   |_|  \___/|___/\___/ \__,_|\__, |
+                    A study in simplicity            |___/
+
+]]
+	end
+	if option == "short" or option == "full" then
+	session.print("Welcome to the Prosody administration console. For a list of commands, type: help");
+	session.print("You may find more help on using this console in our online documentation at ");
+	session.print("https://prosody.im/doc/console\n");
+	end
+	if option ~= "short" and option ~= "full" and option ~= "graphic" then
+		session.print(option);
+	end
 end
 
 console = {};
@@ -73,7 +64,12 @@ end
 function console:new_session(conn)
 	local w = function(s) conn:write(s:gsub("\n", "\r\n")); end;
 	local session = { conn = conn;
-			send = function (t) w(tostring(t)); end;
+			send = function (t)
+				if st.is_stanza(t) and t.name == "repl-result" then
+					t = "| "..t:get_text().."\n";
+				end
+				w(tostring(t));
+			end;
 			print = function (...)
 				local t = {};
 				for i=1,select("#", ...) do
@@ -104,59 +100,13 @@ function console:new_session(conn)
 end
 
 function console:process_line(session, line)
-	local useglobalenv;
-
-	if line:match("^>") then
-		line = line:gsub("^>", "");
-		useglobalenv = true;
-	elseif line == "\004" then
-		commands["bye"](session, line);
-		return;
-	else
-		local command = line:match("^%w+") or line:match("%p");
-		if commands[command] then
-			commands[command](session, line);
-			return;
-		end
-	end
-
-	session.env._ = line;
-
-	if not useglobalenv and commands[line:lower()] then
-		commands[line:lower()](session, line);
-		return;
-	end
-
-	local chunkname = "=console";
-	local env = (useglobalenv and redirect_output(_G, session)) or session.env or nil
-	-- luacheck: ignore 311/err
-	local chunk, err = envload("return "..line, chunkname, env);
-	if not chunk then
-		chunk, err = envload(line, chunkname, env);
-		if not chunk then
-			err = err:gsub("^%[string .-%]:%d+: ", "");
-			err = err:gsub("^:%d+: ", "");
-			err = err:gsub("'<eof>'", "the end of the line");
-			session.print("Sorry, I couldn't understand that... "..err);
-			return;
-		end
-	end
-
-	local taskok, message = chunk();
-
-	if not message then
-		if type(taskok) ~= "string" and useglobalenv then
-			taskok = session.serialize(taskok);
-		end
-		session.print("Result: "..tostring(taskok));
-		return;
-	elseif (not taskok) and message then
-		session.print("Command completed with a problem");
-		session.print("Message: "..tostring(message));
+	line = line:gsub("\r?\n$", "");
+	if line == "bye" or line == "quit" or line == "exit" or line:byte() == 4 then
+		session.print("See you!");
+		session:disconnect();
 		return;
 	end
-
-	session.print("OK: "..tostring(message));
+	return module:fire_event("admin/repl-line", { origin = session, stanza = st.stanza("repl"):text(line) });
 end
 
 local sessions = {};
@@ -218,1509 +168,6 @@ function console_listener.ondetach(conn)
 	sessions[conn] = nil;
 end
 
--- Console commands --
--- These are simple commands, not valid standalone in Lua
-
-function commands.bye(session)
-	session.print("See you! :)");
-	session.closed = true;
-	session.disconnect();
-end
-commands.quit, commands.exit = commands.bye, commands.bye;
-
-commands["!"] = function (session, data)
-	if data:match("^!!") and session.env._ then
-		session.print("!> "..session.env._);
-		return console_listener.onincoming(session.conn, session.env._);
-	end
-	local old, new = data:match("^!(.-[^\\])!(.-)!$");
-	if old and new then
-		local ok, res = pcall(string.gsub, session.env._, old, new);
-		if not ok then
-			session.print(res)
-			return;
-		end
-		session.print("!> "..res);
-		return console_listener.onincoming(session.conn, res);
-	end
-	session.print("Sorry, not sure what you want");
-end
-
-
-function commands.help(session, data)
-	local print = session.print;
-	local section = data:match("^help (%w+)");
-	if not section then
-		print [[Commands are divided into multiple sections. For help on a particular section, ]]
-		print [[type: help SECTION (for example, 'help c2s'). Sections are: ]]
-		print [[]]
-		print [[c2s - Commands to manage local client-to-server sessions]]
-		print [[s2s - Commands to manage sessions between this server and others]]
-		print [[http - Commands to inspect HTTP services]] -- XXX plural but there is only one so far
-		print [[module - Commands to load/reload/unload modules/plugins]]
-		print [[host - Commands to activate, deactivate and list virtual hosts]]
-		print [[user - Commands to create and delete users, and change their passwords]]
-		print [[server - Uptime, version, shutting down, etc.]]
-		print [[port - Commands to manage ports the server is listening on]]
-		print [[dns - Commands to manage and inspect the internal DNS resolver]]
-		print [[xmpp - Commands for sending XMPP stanzas]]
-		print [[debug - Commands for debugging the server]]
-		print [[config - Reloading the configuration, etc.]]
-		print [[console - Help regarding the console itself]]
-	elseif section == "c2s" then
-		print [[c2s:show(jid) - Show all client sessions with the specified JID (or all if no JID given)]]
-		print [[c2s:show_insecure() - Show all unencrypted client connections]]
-		print [[c2s:show_secure() - Show all encrypted client connections]]
-		print [[c2s:show_tls() - Show TLS cipher info for encrypted sessions]]
-		print [[c2s:count() - Count sessions without listing them]]
-		print [[c2s:close(jid) - Close all sessions for the specified JID]]
-		print [[c2s:closeall() - Close all active c2s connections ]]
-	elseif section == "s2s" then
-		print [[s2s:show(domain) - Show all s2s connections for the given domain (or all if no domain given)]]
-		print [[s2s:show_tls(domain) - Show TLS cipher info for encrypted sessions]]
-		print [[s2s:close(from, to) - Close a connection from one domain to another]]
-		print [[s2s:closeall(host) - Close all the incoming/outgoing s2s sessions to specified host]]
-	elseif section == "http" then
-		print [[http:list(hosts) - Show HTTP endpoints]]
-	elseif section == "module" then
-		print [[module:load(module, host) - Load the specified module on the specified host (or all hosts if none given)]]
-		print [[module:reload(module, host) - The same, but unloads and loads the module (saving state if the module supports it)]]
-		print [[module:unload(module, host) - The same, but just unloads the module from memory]]
-		print [[module:list(host) - List the modules loaded on the specified host]]
-	elseif section == "host" then
-		print [[host:activate(hostname) - Activates the specified host]]
-		print [[host:deactivate(hostname) - Disconnects all clients on this host and deactivates]]
-		print [[host:list() - List the currently-activated hosts]]
-	elseif section == "user" then
-		print [[user:create(jid, password) - Create the specified user account]]
-		print [[user:password(jid, password) - Set the password for the specified user account]]
-		print [[user:delete(jid) - Permanently remove the specified user account]]
-		print [[user:list(hostname, pattern) - List users on the specified host, optionally filtering with a pattern]]
-	elseif section == "server" then
-		print [[server:version() - Show the server's version number]]
-		print [[server:uptime() - Show how long the server has been running]]
-		print [[server:memory() - Show details about the server's memory usage]]
-		print [[server:shutdown(reason) - Shut down the server, with an optional reason to be broadcast to all connections]]
-	elseif section == "port" then
-		print [[port:list() - Lists all network ports prosody currently listens on]]
-		print [[port:close(port, interface) - Close a port]]
-	elseif section == "dns" then
-		print [[dns:lookup(name, type, class) - Do a DNS lookup]]
-		print [[dns:addnameserver(nameserver) - Add a nameserver to the list]]
-		print [[dns:setnameserver(nameserver) - Replace the list of name servers with the supplied one]]
-		print [[dns:purge() - Clear the DNS cache]]
-		print [[dns:cache() - Show cached records]]
-	elseif section == "xmpp" then
-		print [[xmpp:ping(localhost, remotehost) -- Sends a ping to a remote XMPP server and reports the response]]
-	elseif section == "config" then
-		print [[config:reload() - Reload the server configuration. Modules may need to be reloaded for changes to take effect.]]
-		print [[config:get([host,] option) - Show the value of a config option.]]
-	elseif section == "stats" then -- luacheck: ignore 542
-		-- TODO describe how stats:show() works
-	elseif section == "debug" then
-		print [[debug:logevents(host) - Enable logging of fired events on host]]
-		print [[debug:events(host, event) - Show registered event handlers]]
-		print [[debug:timers() - Show information about scheduled timers]]
-	elseif section == "console" then
-		print [[Hey! Welcome to Prosody's admin console.]]
-		print [[First thing, if you're ever wondering how to get out, simply type 'quit'.]]
-		print [[Secondly, note that we don't support the full telnet protocol yet (it's coming)]]
-		print [[so you may have trouble using the arrow keys, etc. depending on your system.]]
-		print [[]]
-		print [[For now we offer a couple of handy shortcuts:]]
-		print [[!! - Repeat the last command]]
-		print [[!old!new! - repeat the last command, but with 'old' replaced by 'new']]
-		print [[]]
-		print [[For those well-versed in Prosody's internals, or taking instruction from those who are,]]
-		print [[you can prefix a command with > to escape the console sandbox, and access everything in]]
-		print [[the running server. Great fun, but be careful not to break anything :)]]
-	end
-	print [[]]
-end
-
--- Session environment --
--- Anything in def_env will be accessible within the session as a global variable
-
---luacheck: ignore 212/self
-local serialize_defaults = module:get_option("console_prettyprint_settings", { fatal = false, unquoted = true, maxdepth = 2})
-
-def_env.output = {};
-function def_env.output:configure(opts)
-	if type(opts) ~= "table" then
-		opts = { preset = opts };
-	end
-	if not opts.fallback then
-		-- XXX Error message passed to fallback is lost, does it matter?
-		opts.fallback = tostring;
-	end
-	for k,v in pairs(serialize_defaults) do
-		if opts[k] == nil then
-			opts[k] = v;
-		end
-	end
-	self.session.serialize = serialization.new(opts);
-end
-
-def_env.server = {};
-
-function def_env.server:insane_reload()
-	prosody.unlock_globals();
-	dofile "prosody"
-	prosody = _G.prosody;
-	return true, "Server reloaded";
-end
-
-function def_env.server:version()
-	return true, tostring(prosody.version or "unknown");
-end
-
-function def_env.server:uptime()
-	local t = os.time()-prosody.start_time;
-	local seconds = t%60;
-	t = (t - seconds)/60;
-	local minutes = t%60;
-	t = (t - minutes)/60;
-	local hours = t%24;
-	t = (t - hours)/24;
-	local days = t;
-	return true, string.format("This server has been running for %d day%s, %d hour%s and %d minute%s (since %s)",
-		days, (days ~= 1 and "s") or "", hours, (hours ~= 1 and "s") or "",
-		minutes, (minutes ~= 1 and "s") or "", os.date("%c", prosody.start_time));
-end
-
-function def_env.server:shutdown(reason)
-	prosody.shutdown(reason);
-	return true, "Shutdown initiated";
-end
-
-local function human(kb)
-	local unit = "K";
-	if kb > 1024 then
-		kb, unit = kb/1024, "M";
-	end
-	return ("%0.2f%sB"):format(kb, unit);
-end
-
-function def_env.server:memory()
-	if not has_pposix or not pposix.meminfo then
-		return true, "Lua is using "..human(collectgarbage("count"));
-	end
-	local mem, lua_mem = pposix.meminfo(), collectgarbage("count");
-	local print = self.session.print;
-	print("Process: "..human((mem.allocated+mem.allocated_mmap)/1024));
-	print("   Used: "..human(mem.used/1024).." ("..human(lua_mem).." by Lua)");
-	print("   Free: "..human(mem.unused/1024).." ("..human(mem.returnable/1024).." returnable)");
-	return true, "OK";
-end
-
-def_env.module = {};
-
-local function get_hosts_set(hosts)
-	if type(hosts) == "table" then
-		if hosts[1] then
-			return set.new(hosts);
-		elseif hosts._items then
-			return hosts;
-		end
-	elseif type(hosts) == "string" then
-		return set.new { hosts };
-	elseif hosts == nil then
-		return set.new(array.collect(keys(prosody.hosts)));
-	end
-end
-
--- Hosts with a module or all virtualhosts if no module given
--- matching modules_enabled in the global section
-local function get_hosts_with_module(hosts, module)
-	local hosts_set = get_hosts_set(hosts)
-	/ function (host)
-			if module then
-				-- Module given, filter in hosts with this module loaded
-				if modulemanager.is_loaded(host, module) then
-					return host;
-				else
-					return nil;
-				end
-			end
-			if not hosts then
-				-- No hosts given, filter in VirtualHosts
-				if prosody.hosts[host].type == "local" then
-					return host;
-				else
-					return nil
-				end
-			end;
-			-- No module given, but hosts are, don't filter at all
-			return host;
-		end;
-	if module and modulemanager.get_module("*", module) then
-		hosts_set:add("*");
-	end
-	return hosts_set;
-end
-
-function def_env.module:load(name, hosts, config)
-	hosts = get_hosts_with_module(hosts);
-
-	-- Load the module for each host
-	local ok, err, count, mod = true, nil, 0;
-	for host in hosts do
-		if (not modulemanager.is_loaded(host, name)) then
-			mod, err = modulemanager.load(host, name, config);
-			if not mod then
-				ok = false;
-				if err == "global-module-already-loaded" then
-					if count > 0 then
-						ok, err, count = true, nil, 1;
-					end
-					break;
-				end
-				self.session.print(err or "Unknown error loading module");
-			else
-				count = count + 1;
-				self.session.print("Loaded for "..mod.module.host);
-			end
-		end
-	end
-
-	return ok, (ok and "Module loaded onto "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
-end
-
-function def_env.module:unload(name, hosts)
-	hosts = get_hosts_with_module(hosts, name);
-
-	-- Unload the module for each host
-	local ok, err, count = true, nil, 0;
-	for host in hosts do
-		if modulemanager.is_loaded(host, name) then
-			ok, err = modulemanager.unload(host, name);
-			if not ok then
-				ok = false;
-				self.session.print(err or "Unknown error unloading module");
-			else
-				count = count + 1;
-				self.session.print("Unloaded from "..host);
-			end
-		end
-	end
-	return ok, (ok and "Module unloaded from "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
-end
-
-local function _sort_hosts(a, b)
-	if a == "*" then return true
-	elseif b == "*" then return false
-	else return a:gsub("[^.]+", string.reverse):reverse() < b:gsub("[^.]+", string.reverse):reverse(); end
-end
-
-function def_env.module:reload(name, hosts)
-	hosts = array.collect(get_hosts_with_module(hosts, name)):sort(_sort_hosts)
-
-	-- Reload the module for each host
-	local ok, err, count = true, nil, 0;
-	for _, host in ipairs(hosts) do
-		if modulemanager.is_loaded(host, name) then
-			ok, err = modulemanager.reload(host, name);
-			if not ok then
-				ok = false;
-				self.session.print(err or "Unknown error reloading module");
-			else
-				count = count + 1;
-				if ok == nil then
-					ok = true;
-				end
-				self.session.print("Reloaded on "..host);
-			end
-		end
-	end
-	return ok, (ok and "Module reloaded on "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
-end
-
-function def_env.module:list(hosts)
-	hosts = array.collect(set.new({ not hosts and "*" or nil }) + get_hosts_set(hosts)):sort(_sort_hosts);
-
-	local print = self.session.print;
-	for _, host in ipairs(hosts) do
-		print((host == "*" and "Global" or host)..":");
-		local modules = array.collect(keys(modulemanager.get_modules(host) or {})):sort();
-		if #modules == 0 then
-			if prosody.hosts[host] then
-				print("    No modules loaded");
-			else
-				print("    Host not found");
-			end
-		else
-			for _, name in ipairs(modules) do
-				local status, status_text = modulemanager.get_module(host, name).module:get_status();
-				local status_summary = "";
-				if status == "warn" or status == "error" then
-					status_summary = (" (%s: %s)"):format(status, status_text);
-				end
-				print(("    %s%s"):format(name, status_summary));
-			end
-		end
-	end
-end
-
-def_env.config = {};
-function def_env.config:load(filename, format)
-	local config_load = require "core.configmanager".load;
-	local ok, err = config_load(filename, format);
-	if not ok then
-		return false, err or "Unknown error loading config";
-	end
-	return true, "Config loaded";
-end
-
-function def_env.config:get(host, key)
-	if key == nil then
-		host, key = "*", host;
-	end
-	local config_get = require "core.configmanager".get
-	return true, serialize_config(config_get(host, key));
-end
-
-function def_env.config:reload()
-	local ok, err = prosody.reload_config();
-	return ok, (ok and "Config reloaded (you may need to reload modules to take effect)") or tostring(err);
-end
-
-local function common_info(session, line)
-	if session.id then
-		line[#line+1] = "["..session.id.."]"
-	else
-		line[#line+1] = "["..session.type..(tostring(session):match("%x*$")).."]"
-	end
-end
-
-local function session_flags(session, line)
-	line = line or {};
-	common_info(session, line);
-	if session.type == "c2s" then
-		local status, priority = "unavailable", tostring(session.priority or "-");
-		if session.presence then
-			status = session.presence:get_child_text("show") or "available";
-		end
-		line[#line+1] = status.."("..priority..")";
-	end
-	if session.cert_identity_status == "valid" then
-		line[#line+1] = "(authenticated)";
-	end
-	if session.dialback_key then
-		line[#line+1] = "(dialback)";
-	end
-	if session.external_auth then
-		line[#line+1] = "(SASL)";
-	end
-	if session.secure then
-		line[#line+1] = "(encrypted)";
-	end
-	if session.compressed then
-		line[#line+1] = "(compressed)";
-	end
-	if session.smacks then
-		line[#line+1] = "(sm)";
-	end
-	if session.ip and session.ip:match(":") then
-		line[#line+1] = "(IPv6)";
-	end
-	if session.remote then
-		line[#line+1] = "(remote)";
-	end
-	if session.incoming and session.outgoing then
-		line[#line+1] = "(bidi)";
-	elseif session.is_bidi or session.bidi_session then
-		line[#line+1] = "(bidi)";
-	end
-	if session.bosh_version then
-		line[#line+1] = "(bosh)";
-	end
-	if session.websocket_request then
-		line[#line+1] = "(websocket)";
-	end
-	return table.concat(line, " ");
-end
-
-local function tls_info(session, line)
-	line = line or {};
-	common_info(session, line);
-	if session.secure then
-		local sock = session.conn and session.conn.socket and session.conn:socket();
-		if sock then
-			local info = sock.info and sock:info();
-			if info then
-				line[#line+1] = ("(%s with %s)"):format(info.protocol, info.cipher);
-			else
-				-- TLS session might not be ready yet
-				line[#line+1] = "(cipher info unavailable)";
-			end
-			if sock.getsniname then
-				local name = sock:getsniname();
-				if name then
-					line[#line+1] = ("(SNI:%q)"):format(name);
-				end
-			end
-			if sock.getalpn then
-				local proto = sock:getalpn();
-				if proto then
-					line[#line+1] = ("(ALPN:%q)"):format(proto);
-				end
-			end
-		end
-	else
-		line[#line+1] = "(insecure)";
-	end
-	return table.concat(line, " ");
-end
-
-def_env.c2s = {};
-
-local function get_jid(session)
-	if session.username then
-		return session.full_jid or jid_join(session.username, session.host, session.resource);
-	end
-
-	local conn = session.conn;
-	local ip = session.ip or "?";
-	local clientport = conn and conn:clientport() or "?";
-	local serverip = conn and conn.server and conn:server():ip() or "?";
-	local serverport = conn and conn:serverport() or "?"
-	return jid_join("["..ip.."]:"..clientport, session.host or "["..serverip.."]:"..serverport);
-end
-
-local function get_c2s()
-	local c2s = array.collect(values(prosody.full_sessions));
-	c2s:append(array.collect(values(module:shared"/*/c2s/sessions")));
-	c2s:append(array.collect(values(module:shared"/*/bosh/sessions")));
-	c2s:unique();
-	return c2s;
-end
-
-local function show_c2s(callback)
-	get_c2s():sort(function(a, b)
-		if a.host == b.host then
-			if a.username == b.username then
-				return (a.resource or "") > (b.resource or "");
-			end
-			return (a.username or "") > (b.username or "");
-		end
-		return _sort_hosts(a.host or "", b.host or "");
-	end):map(function (session)
-		callback(get_jid(session), session)
-	end);
-end
-
-function def_env.c2s:count()
-	local c2s = get_c2s();
-	return true, "Total: "..  #c2s .." clients";
-end
-
-function def_env.c2s:show(match_jid, annotate)
-	local print, count = self.session.print, 0;
-	annotate = annotate or session_flags;
-	local curr_host = false;
-	show_c2s(function (jid, session)
-		if curr_host ~= session.host then
-			curr_host = session.host;
-			print(curr_host or "(not connected to any host yet)");
-		end
-		if (not match_jid) or jid:match(match_jid) then
-			count = count + 1;
-			print(annotate(session, { "  ", jid }));
-		end
-	end);
-	return true, "Total: "..count.." clients";
-end
-
-function def_env.c2s:show_insecure(match_jid)
-	local print, count = self.session.print, 0;
-	show_c2s(function (jid, session)
-		if ((not match_jid) or jid:match(match_jid)) and not session.secure then
-			count = count + 1;
-			print(jid);
-		end
-	end);
-	return true, "Total: "..count.." insecure client connections";
-end
-
-function def_env.c2s:show_secure(match_jid)
-	local print, count = self.session.print, 0;
-	show_c2s(function (jid, session)
-		if ((not match_jid) or jid:match(match_jid)) and session.secure then
-			count = count + 1;
-			print(jid);
-		end
-	end);
-	return true, "Total: "..count.." secure client connections";
-end
-
-function def_env.c2s:show_tls(match_jid)
-	return self:show(match_jid, tls_info);
-end
-
-local function build_reason(text, condition)
-	if text or condition then
-		return {
-			text = text,
-			condition = condition or "undefined-condition",
-		};
-	end
-end
-
-function def_env.c2s:close(match_jid, text, condition)
-	local count = 0;
-	show_c2s(function (jid, session)
-		if jid == match_jid or jid_bare(jid) == match_jid then
-			count = count + 1;
-			session:close(build_reason(text, condition));
-		end
-	end);
-	return true, "Total: "..count.." sessions closed";
-end
-
-function def_env.c2s:closeall(text, condition)
-	local count = 0;
-	--luacheck: ignore 212/jid
-	show_c2s(function (jid, session)
-		count = count + 1;
-		session:close(build_reason(text, condition));
-	end);
-	return true, "Total: "..count.." sessions closed";
-end
-
-
-def_env.s2s = {};
-function def_env.s2s:show(match_jid, annotate)
-	local print = self.session.print;
-	annotate = annotate or session_flags;
-
-	local count_in, count_out = 0,0;
-	local s2s_list = { };
-
-	local s2s_sessions = module:shared"/*/s2s/sessions";
-	for _, session in pairs(s2s_sessions) do
-		local remotehost, localhost, direction;
-		if session.direction == "outgoing" then
-			direction = "->";
-			count_out = count_out + 1;
-			remotehost, localhost = session.to_host or "?", session.from_host or "?";
-		else
-			direction = "<-";
-			count_in = count_in + 1;
-			remotehost, localhost = session.from_host or "?", session.to_host or "?";
-		end
-		local sess_lines = { l = localhost, r = remotehost,
-			annotate(session, { "", direction, remotehost or "?" })};
-
-		if (not match_jid) or remotehost:match(match_jid) or localhost:match(match_jid) then
-			table.insert(s2s_list, sess_lines);
-			-- luacheck: ignore 421/print
-			local print = function (s) table.insert(sess_lines, "        "..s); end
-			if session.sendq then
-				print("There are "..#session.sendq.." queued outgoing stanzas for this connection");
-			end
-			if session.type == "s2sout_unauthed" then
-				if session.connecting then
-					print("Connection not yet established");
-					if not session.srv_hosts then
-						if not session.conn then
-							print("We do not yet have a DNS answer for this host's SRV records");
-						else
-							print("This host has no SRV records, using A record instead");
-						end
-					elseif session.srv_choice then
-						print("We are on SRV record "..session.srv_choice.." of "..#session.srv_hosts);
-						local srv_choice = session.srv_hosts[session.srv_choice];
-						print("Using "..(srv_choice.target or ".")..":"..(srv_choice.port or 5269));
-					end
-				elseif session.notopen then
-					print("The <stream> has not yet been opened");
-				elseif not session.dialback_key then
-					print("Dialback has not been initiated yet");
-				elseif session.dialback_key then
-					print("Dialback has been requested, but no result received");
-				end
-			end
-			if session.type == "s2sin_unauthed" then
-				print("Connection not yet authenticated");
-			elseif session.type == "s2sin" then
-				for name in pairs(session.hosts) do
-					if name ~= session.from_host then
-						print("also hosts "..tostring(name));
-					end
-				end
-			end
-		end
-	end
-
-	-- Sort by local host, then remote host
-	table.sort(s2s_list, function(a,b)
-		if a.l == b.l then return _sort_hosts(a.r, b.r); end
-		return _sort_hosts(a.l, b.l);
-	end);
-	local lasthost;
-	for _, sess_lines in ipairs(s2s_list) do
-		if sess_lines.l ~= lasthost then print(sess_lines.l); lasthost=sess_lines.l end
-		for _, line in ipairs(sess_lines) do print(line); end
-	end
-	return true, "Total: "..count_out.." outgoing, "..count_in.." incoming connections";
-end
-
-function def_env.s2s:show_tls(match_jid)
-	return self:show(match_jid, tls_info);
-end
-
-local function print_subject(print, subject)
-	for _, entry in ipairs(subject) do
-		print(
-			("    %s: %q"):format(
-				entry.name or entry.oid,
-				entry.value:gsub("[\r\n%z%c]", " ")
-			)
-		);
-	end
-end
-
--- As much as it pains me to use the 0-based depths that OpenSSL does,
--- I think there's going to be more confusion among operators if we
--- break from that.
-local function print_errors(print, errors)
-	for depth, t in pairs(errors) do
-		print(
-			("    %d: %s"):format(
-				depth-1,
-				table.concat(t, "\n|        ")
-			)
-		);
-	end
-end
-
-function def_env.s2s:showcert(domain)
-	local print = self.session.print;
-	local s2s_sessions = module:shared"/*/s2s/sessions";
-	local domain_sessions = set.new(array.collect(values(s2s_sessions)))
-		/function(session) return (session.to_host == domain or session.from_host == domain) and session or nil; end;
-	local cert_set = {};
-	for session in domain_sessions do
-		local conn = session.conn;
-		conn = conn and conn:socket();
-		if not conn.getpeerchain then
-			if conn.dohandshake then
-				error("This version of LuaSec does not support certificate viewing");
-			end
-		else
-			local cert = conn:getpeercertificate();
-			if cert then
-				local certs = conn:getpeerchain();
-				local digest = cert:digest("sha1");
-				if not cert_set[digest] then
-					local chain_valid, chain_errors = conn:getpeerverification();
-					cert_set[digest] = {
-						{
-						  from = session.from_host,
-						  to = session.to_host,
-						  direction = session.direction
-						};
-						chain_valid = chain_valid;
-						chain_errors = chain_errors;
-						certs = certs;
-					};
-				else
-					table.insert(cert_set[digest], {
-						from = session.from_host,
-						to = session.to_host,
-						direction = session.direction
-					});
-				end
-			end
-		end
-	end
-	local domain_certs = array.collect(values(cert_set));
-	-- Phew. We now have a array of unique certificates presented by domain.
-	local n_certs = #domain_certs;
-
-	if n_certs == 0 then
-		return "No certificates found for "..domain;
-	end
-
-	local function _capitalize_and_colon(byte)
-		return string.upper(byte)..":";
-	end
-	local function pretty_fingerprint(hash)
-		return hash:gsub("..", _capitalize_and_colon):sub(1, -2);
-	end
-
-	for cert_info in values(domain_certs) do
-		local certs = cert_info.certs;
-		local cert = certs[1];
-		print("---")
-		print("Fingerprint (SHA1): "..pretty_fingerprint(cert:digest("sha1")));
-		print("");
-		local n_streams = #cert_info;
-		print("Currently used on "..n_streams.." stream"..(n_streams==1 and "" or "s")..":");
-		for _, stream in ipairs(cert_info) do
-			if stream.direction == "incoming" then
-				print("    "..stream.to.." <- "..stream.from);
-			else
-				print("    "..stream.from.." -> "..stream.to);
-			end
-		end
-		print("");
-		local chain_valid, errors = cert_info.chain_valid, cert_info.chain_errors;
-		local valid_identity = cert_verify_identity(domain, "xmpp-server", cert);
-		if chain_valid then
-			print("Trusted certificate: Yes");
-		else
-			print("Trusted certificate: No");
-			print_errors(print, errors);
-		end
-		print("");
-		print("Issuer: ");
-		print_subject(print, cert:issuer());
-		print("");
-		print("Valid for "..domain..": "..(valid_identity and "Yes" or "No"));
-		print("Subject:");
-		print_subject(print, cert:subject());
-	end
-	print("---");
-	return ("Showing "..n_certs.." certificate"
-		..(n_certs==1 and "" or "s")
-		.." presented by "..domain..".");
-end
-
-function def_env.s2s:close(from, to, text, condition)
-	local print, count = self.session.print, 0;
-	local s2s_sessions = module:shared"/*/s2s/sessions";
-
-	local match_id;
-	if from and not to then
-		match_id, from = from, nil;
-	elseif not to then
-		return false, "Syntax: s2s:close('from', 'to') - Closes all s2s sessions from 'from' to 'to'";
-	elseif from == to then
-		return false, "Both from and to are the same... you can't do that :)";
-	end
-
-	for _, session in pairs(s2s_sessions) do
-		local id = session.id or (session.type..tostring(session):match("[a-f0-9]+$"));
-		if (match_id and match_id == id)
-		or (session.from_host == from and session.to_host == to) then
-			print(("Closing connection from %s to %s [%s]"):format(session.from_host, session.to_host, id));
-			(session.close or s2smanager.destroy_session)(session, build_reason(text, condition));
-			count = count + 1 ;
-		end
-	end
-	return true, "Closed "..count.." s2s session"..((count == 1 and "") or "s");
-end
-
-function def_env.s2s:closeall(host, text, condition)
-	local count = 0;
-	local s2s_sessions = module:shared"/*/s2s/sessions";
-	for _,session in pairs(s2s_sessions) do
-		if not host or session.from_host == host or session.to_host == host then
-			session:close(build_reason(text, condition));
-			count = count + 1;
-		end
-	end
-	if count == 0 then return false, "No sessions to close.";
-	else return true, "Closed "..count.." s2s session"..((count == 1 and "") or "s"); end
-end
-
-def_env.host = {}; def_env.hosts = def_env.host;
-
-function def_env.host:activate(hostname, config)
-	return hostmanager.activate(hostname, config);
-end
-function def_env.host:deactivate(hostname, reason)
-	return hostmanager.deactivate(hostname, reason);
-end
-
-function def_env.host:list()
-	local print = self.session.print;
-	local i = 0;
-	local type;
-	for host, host_session in iterators.sorted_pairs(prosody.hosts, _sort_hosts) do
-		i = i + 1;
-		type = host_session.type;
-		if type == "local" then
-			print(host);
-		else
-			type = module:context(host):get_option_string("component_module", type);
-			if type ~= "component" then
-				type = type .. " component";
-			end
-			print(("%s (%s)"):format(host, type));
-		end
-	end
-	return true, i.." hosts";
-end
-
-def_env.port = {};
-
-function def_env.port:list()
-	local print = self.session.print;
-	local services = portmanager.get_active_services().data;
-	local n_services, n_ports = 0, 0;
-	for service, interfaces in iterators.sorted_pairs(services) do
-		n_services = n_services + 1;
-		local ports_list = {};
-		for interface, ports in pairs(interfaces) do
-			for port in pairs(ports) do
-				table.insert(ports_list, "["..interface.."]:"..port);
-			end
-		end
-		n_ports = n_ports + #ports_list;
-		print(service..": "..table.concat(ports_list, ", "));
-	end
-	return true, n_services.." services listening on "..n_ports.." ports";
-end
-
-function def_env.port:close(close_port, close_interface)
-	close_port = assert(tonumber(close_port), "Invalid port number");
-	local n_closed = 0;
-	local services = portmanager.get_active_services().data;
-	for service, interfaces in pairs(services) do -- luacheck: ignore 213
-		for interface, ports in pairs(interfaces) do
-			if not close_interface or close_interface == interface then
-				if ports[close_port] then
-					self.session.print("Closing ["..interface.."]:"..close_port.."...");
-					local ok, err = portmanager.close(interface, close_port)
-					if not ok then
-						self.session.print("Failed to close "..interface.." "..close_port..": "..err);
-					else
-						n_closed = n_closed + 1;
-					end
-				end
-			end
-		end
-	end
-	return true, "Closed "..n_closed.." ports";
-end
-
-def_env.muc = {};
-
-local console_room_mt = {
-	__index = function (self, k) return self.room[k]; end;
-	__tostring = function (self)
-		return "MUC room <"..self.room.jid..">";
-	end;
-};
-
-local function check_muc(jid)
-	local room_name, host = jid_split(jid);
-	if not prosody.hosts[host] then
-		return nil, "No such host: "..host;
-	elseif not prosody.hosts[host].modules.muc then
-		return nil, "Host '"..host.."' is not a MUC service";
-	end
-	return room_name, host;
-end
-
-function def_env.muc:create(room_jid, config)
-	local room_name, host = check_muc(room_jid);
-	if not room_name then
-		return room_name, host;
-	end
-	if not room_name then return nil, host end
-	if config ~= nil and type(config) ~= "table" then return nil, "Config must be a table"; end
-	if prosody.hosts[host].modules.muc.get_room_from_jid(room_jid) then return nil, "Room exists already" end
-	return prosody.hosts[host].modules.muc.create_room(room_jid, config);
-end
-
-function def_env.muc:room(room_jid)
-	local room_name, host = check_muc(room_jid);
-	if not room_name then
-		return room_name, host;
-	end
-	local room_obj = prosody.hosts[host].modules.muc.get_room_from_jid(room_jid);
-	if not room_obj then
-		return nil, "No such room: "..room_jid;
-	end
-	return setmetatable({ room = room_obj }, console_room_mt);
-end
-
-function def_env.muc:list(host)
-	local host_session = prosody.hosts[host];
-	if not host_session or not host_session.modules.muc then
-		return nil, "Please supply the address of a local MUC component";
-	end
-	local print = self.session.print;
-	local c = 0;
-	for room in host_session.modules.muc.each_room() do
-		print(room.jid);
-		c = c + 1;
-	end
-	return true, c.." rooms";
-end
-
-local um = require"core.usermanager";
-
-def_env.user = {};
-function def_env.user:create(jid, password)
-	local username, host = jid_split(jid);
-	if not prosody.hosts[host] then
-		return nil, "No such host: "..host;
-	elseif um.user_exists(username, host) then
-		return nil, "User exists";
-	end
-	local ok, err = um.create_user(username, password, host);
-	if ok then
-		return true, "User created";
-	else
-		return nil, "Could not create user: "..err;
-	end
-end
-
-function def_env.user:delete(jid)
-	local username, host = jid_split(jid);
-	if not prosody.hosts[host] then
-		return nil, "No such host: "..host;
-	elseif not um.user_exists(username, host) then
-		return nil, "No such user";
-	end
-	local ok, err = um.delete_user(username, host);
-	if ok then
-		return true, "User deleted";
-	else
-		return nil, "Could not delete user: "..err;
-	end
-end
-
-function def_env.user:password(jid, password)
-	local username, host = jid_split(jid);
-	if not prosody.hosts[host] then
-		return nil, "No such host: "..host;
-	elseif not um.user_exists(username, host) then
-		return nil, "No such user";
-	end
-	local ok, err = um.set_password(username, password, host, nil);
-	if ok then
-		return true, "User password changed";
-	else
-		return nil, "Could not change password for user: "..err;
-	end
-end
-
-function def_env.user:list(host, pat)
-	if not host then
-		return nil, "No host given";
-	elseif not prosody.hosts[host] then
-		return nil, "No such host";
-	end
-	local print = self.session.print;
-	local total, matches = 0, 0;
-	for user in um.users(host) do
-		if not pat or user:match(pat) then
-			print(user.."@"..host);
-			matches = matches + 1;
-		end
-		total = total + 1;
-	end
-	return true, "Showing "..(pat and (matches.." of ") or "all " )..total.." users";
-end
-
-def_env.xmpp = {};
-
-local st = require "util.stanza";
-local new_id = require "util.id".medium;
-function def_env.xmpp:ping(localhost, remotehost, timeout)
-	localhost = select(2, jid_split(localhost));
-	remotehost = select(2, jid_split(remotehost));
-	if not localhost then
-		return nil, "Invalid sender hostname";
-	elseif not prosody.hosts[localhost] then
-		return nil, "No such local host";
-	end
-	if not remotehost then
-		return nil, "Invalid destination hostname";
-	elseif prosody.hosts[remotehost] then
-		return nil, "Both hosts are local";
-	end
-	local iq = st.iq{ from=localhost, to=remotehost, type="get", id=new_id()}
-			:tag("ping", {xmlns="urn:xmpp:ping"});
-	local time_start = time.now();
-	local ret, err = async.wait(module:context(localhost):send_iq(iq, nil, timeout));
-	if ret then
-		return true, ("pong from %s in %gs"):format(ret.stanza.attr.from, time.now() - time_start);
-	else
-		return false, tostring(err);
-	end
-end
-
-def_env.dns = {};
-local adns = require"net.adns";
-
-local function get_resolver(session)
-	local resolver = session.dns_resolver;
-	if not resolver then
-		resolver = adns.resolver();
-		session.dns_resolver = resolver;
-	end
-	return resolver;
-end
-
-function def_env.dns:lookup(name, typ, class)
-	local resolver = get_resolver(self.session);
-	local ret, err = async.wait(resolver:lookup_promise(name, typ, class));
-	if ret then
-		return true, ret;
-	elseif err then
-		return false, err;
-	end
-end
-
-function def_env.dns:addnameserver(...)
-	local resolver = get_resolver(self.session);
-	resolver._resolver:addnameserver(...)
-	return true
-end
-
-function def_env.dns:setnameserver(...)
-	local resolver = get_resolver(self.session);
-	resolver._resolver:setnameserver(...)
-	return true
-end
-
-function def_env.dns:purge()
-	local resolver = get_resolver(self.session);
-	resolver._resolver:purge()
-	return true
-end
-
-function def_env.dns:cache()
-	local resolver = get_resolver(self.session);
-	return true, "Cache:\n"..tostring(resolver._resolver.cache)
-end
-
-def_env.http = {};
-
-function def_env.http:list(hosts)
-	local print = self.session.print;
-
-	for host in get_hosts_set(hosts) do
-		local http_apps = modulemanager.get_items("http-provider", host);
-		if #http_apps > 0 then
-			local http_host = module:context(host):get_option_string("http_host");
-			print("HTTP endpoints on "..host..(http_host and (" (using "..http_host.."):") or ":"));
-			for _, provider in ipairs(http_apps) do
-				local url = module:context(host):http_url(provider.name, provider.default_path);
-				print("", url);
-			end
-			print("");
-		end
-	end
-
-	local default_host = module:get_option_string("http_default_host");
-	if not default_host then
-		print("HTTP requests to unknown hosts will return 404 Not Found");
-	else
-		print("HTTP requests to unknown hosts will be handled by "..default_host);
-	end
-	return true;
-end
-
-def_env.debug = {};
-
-function def_env.debug:logevents(host)
-	helpers.log_host_events(host);
-	return true;
-end
-
-function def_env.debug:events(host, event)
-	local events_obj;
-	if host and host ~= "*" then
-		if host == "http" then
-			events_obj = require "net.http.server"._events;
-		elseif not prosody.hosts[host] then
-			return false, "Unknown host: "..host;
-		else
-			events_obj = prosody.hosts[host].events;
-		end
-	else
-		events_obj = prosody.events;
-	end
-	return true, helpers.show_events(events_obj, event);
-end
-
-function def_env.debug:timers()
-	local print = self.session.print;
-	local add_task = require"util.timer".add_task;
-	local h, params = add_task.h, add_task.params;
-	if h then
-		print("-- util.timer");
-		for i, id in ipairs(h.ids) do
-			if not params[id] then
-				print(os.date("%F %T", h.priorities[i]), h.items[id]);
-			elseif not params[id].callback then
-				print(os.date("%F %T", h.priorities[i]), h.items[id], unpack(params[id]));
-			else
-				print(os.date("%F %T", h.priorities[i]), params[id].callback, unpack(params[id]));
-			end
-		end
-	end
-	if server.event_base then
-		local count = 0;
-		for _, v in pairs(debug.getregistry()) do
-			if type(v) == "function" and v.callback and v.callback == add_task._on_timer then
-				count = count + 1;
-			end
-		end
-		print(count .. " libevent callbacks");
-	end
-	if h then
-		local next_time = h:peek();
-		if next_time then
-			return true, os.date("Next event at %F %T (in %%.6fs)", next_time):format(next_time - time.now());
-		end
-	end
-	return true;
-end
-
--- COMPAT: debug:timers() was timer:info() for some time in trunk
-def_env.timer = { info = def_env.debug.timers };
-
-module:hook("server-stopping", function(event)
-	for _, session in pairs(sessions) do
-		session.print("Shutting down: "..(event.reason or "unknown reason"));
-	end
-end);
-
-def_env.stats = {};
-
-local function format_stat(type, value, ref_value)
-	ref_value = ref_value or value;
-	--do return tostring(value) end
-	if type == "duration" then
-		if ref_value < 0.001 then
-			return ("%g µs"):format(value*1000000);
-		elseif ref_value < 0.9 then
-			return ("%0.2f ms"):format(value*1000);
-		end
-		return ("%0.2f"):format(value);
-	elseif type == "size" then
-		if ref_value > 1048576 then
-			return ("%d MB"):format(value/1048576);
-		elseif ref_value > 1024 then
-			return ("%d KB"):format(value/1024);
-		end
-		return ("%d bytes"):format(value);
-	elseif type == "rate" then
-		if ref_value < 0.9 then
-			return ("%0.2f/min"):format(value*60);
-		end
-		return ("%0.2f/sec"):format(value);
-	end
-	return tostring(value);
-end
-
-local stats_methods = {};
-function stats_methods:bounds(_lower, _upper)
-	for _, stat_info in ipairs(self) do
-		local data = stat_info[4];
-		if data then
-			local lower = _lower or data.min;
-			local upper = _upper or data.max;
-			local new_data = {
-				min = lower;
-				max = upper;
-				samples = {};
-				sample_count = 0;
-				count = data.count;
-				units = data.units;
-			};
-			local sum = 0;
-			for _, v in ipairs(data.samples) do
-				if v > upper then
-					break;
-				elseif v>=lower then
-					table.insert(new_data.samples, v);
-					sum = sum + v;
-				end
-			end
-			new_data.sample_count = #new_data.samples;
-			stat_info[4] = new_data;
-			stat_info[3] = sum/new_data.sample_count;
-		end
-	end
-	return self;
-end
-
-function stats_methods:trim(lower, upper)
-	upper = upper or (100-lower);
-	local statistics = require "util.statistics";
-	for _, stat_info in ipairs(self) do
-		-- Strip outliers
-		local data = stat_info[4];
-		if data then
-			local new_data = {
-				min = statistics.get_percentile(data, lower);
-				max = statistics.get_percentile(data, upper);
-				samples = {};
-				sample_count = 0;
-				count = data.count;
-				units = data.units;
-			};
-			local sum = 0;
-			for _, v in ipairs(data.samples) do
-				if v > new_data.max then
-					break;
-				elseif v>=new_data.min then
-					table.insert(new_data.samples, v);
-					sum = sum + v;
-				end
-			end
-			new_data.sample_count = #new_data.samples;
-			stat_info[4] = new_data;
-			stat_info[3] = sum/new_data.sample_count;
-		end
-	end
-	return self;
-end
-
-function stats_methods:max(upper)
-	return self:bounds(nil, upper);
-end
-
-function stats_methods:min(lower)
-	return self:bounds(lower, nil);
-end
-
-function stats_methods:summary()
-	local statistics = require "util.statistics";
-	for _, stat_info in ipairs(self) do
-		local type, value, data = stat_info[2], stat_info[3], stat_info[4];
-		if data and data.samples then
-			table.insert(stat_info.output, string.format("Count: %d (%d captured)",
-				data.count,
-				data.sample_count
-			));
-			table.insert(stat_info.output, string.format("Min: %s  Mean: %s  Max: %s",
-				format_stat(type, data.min),
-				format_stat(type, value),
-				format_stat(type, data.max)
-			));
-			table.insert(stat_info.output, string.format("Q1: %s  Median: %s  Q3: %s",
-				format_stat(type, statistics.get_percentile(data, 25)),
-				format_stat(type, statistics.get_percentile(data, 50)),
-				format_stat(type, statistics.get_percentile(data, 75))
-			));
-		end
-	end
-	return self;
-end
-
-function stats_methods:cfgraph()
-	for _, stat_info in ipairs(self) do
-		local name, type, value, data = unpack(stat_info, 1, 4); -- luacheck: ignore 211
-		local function print(s)
-			table.insert(stat_info.output, s);
-		end
-
-		if data and data.sample_count and data.sample_count > 0 then
-			local raw_histogram = require "util.statistics".get_histogram(data);
-
-			local graph_width, graph_height = 50, 10;
-			local eighth_chars = "   ▁▂▃▄▅▆▇█";
-
-			local range = data.max - data.min;
-
-			if range > 0 then
-				local x_scaling = #raw_histogram/graph_width;
-				local histogram = {};
-				for i = 1, graph_width do
-					histogram[i] = math.max(raw_histogram[i*x_scaling-1] or 0, raw_histogram[i*x_scaling] or 0);
-				end
-
-				print("");
-				print(("_"):rep(52)..format_stat(type, data.max));
-				for row = graph_height, 1, -1 do
-					local row_chars = {};
-					local min_eighths, max_eighths = 8, 0;
-					for i = 1, #histogram do
-						local char_eighths = math.ceil(math.max(math.min((graph_height/(data.max/histogram[i]))-(row-1), 1), 0)*8);
-						if char_eighths < min_eighths then
-							min_eighths = char_eighths;
-						end
-						if char_eighths > max_eighths then
-							max_eighths = char_eighths;
-						end
-						if char_eighths == 0 then
-							row_chars[i] = "-";
-						else
-							local char = eighth_chars:sub(char_eighths*3+1, char_eighths*3+3);
-							row_chars[i] = char;
-						end
-					end
-					print(table.concat(row_chars).."|-"..format_stat(type, data.max/(graph_height/(row-0.5))));
-				end
-				print(("\\    "):rep(11));
-				local x_labels = {};
-				for i = 1, 11 do
-					local s = ("%-4s"):format((i-1)*10);
-					if #s > 4 then
-						s = s:sub(1, 3).."…";
-					end
-					x_labels[i] = s;
-				end
-				print(" "..table.concat(x_labels, " "));
-				local units = "%";
-				local margin = math.floor((graph_width-#units)/2);
-				print((" "):rep(margin)..units);
-			else
-				print("[range too small to graph]");
-			end
-			print("");
-		end
-	end
-	return self;
-end
-
-function stats_methods:histogram()
-	for _, stat_info in ipairs(self) do
-		local name, type, value, data = unpack(stat_info, 1, 4); -- luacheck: ignore 211
-		local function print(s)
-			table.insert(stat_info.output, s);
-		end
-
-		if not data then
-			print("[no data]");
-			return self;
-		elseif not data.sample_count then
-			print("[not a sampled metric type]");
-			return self;
-		end
-
-		local graph_width, graph_height = 50, 10;
-		local eighth_chars = "   ▁▂▃▄▅▆▇█";
-
-		local range = data.max - data.min;
-
-		if range > 0 then
-			local n_buckets = graph_width;
-
-			local histogram = {};
-			for i = 1, n_buckets do
-				histogram[i] = 0;
-			end
-			local max_bin_samples = 0;
-			for _, d in ipairs(data.samples) do
-				local bucket = math.floor(1+(n_buckets-1)/(range/(d-data.min)));
-				histogram[bucket] = histogram[bucket] + 1;
-				if histogram[bucket] > max_bin_samples then
-					max_bin_samples = histogram[bucket];
-				end
-			end
-
-			print("");
-			print(("_"):rep(52)..max_bin_samples);
-			for row = graph_height, 1, -1 do
-				local row_chars = {};
-				local min_eighths, max_eighths = 8, 0;
-				for i = 1, #histogram do
-					local char_eighths = math.ceil(math.max(math.min((graph_height/(max_bin_samples/histogram[i]))-(row-1), 1), 0)*8);
-					if char_eighths < min_eighths then
-						min_eighths = char_eighths;
-					end
-					if char_eighths > max_eighths then
-						max_eighths = char_eighths;
-					end
-					if char_eighths == 0 then
-						row_chars[i] = "-";
-					else
-						local char = eighth_chars:sub(char_eighths*3+1, char_eighths*3+3);
-						row_chars[i] = char;
-					end
-				end
-				print(table.concat(row_chars).."|-"..math.ceil((max_bin_samples/graph_height)*(row-0.5)));
-			end
-			print(("\\    "):rep(11));
-			local x_labels = {};
-			for i = 1, 11 do
-				local s = ("%-4s"):format(format_stat(type, data.min+range*i/11, data.min):match("^%S+"));
-				if #s > 4 then
-					s = s:sub(1, 3).."…";
-				end
-				x_labels[i] = s;
-			end
-			print(" "..table.concat(x_labels, " "));
-			local units = format_stat(type, data.min):match("%s+(.+)$") or data.units or "";
-			local margin = math.floor((graph_width-#units)/2);
-			print((" "):rep(margin)..units);
-		else
-			print("[range too small to graph]");
-		end
-		print("");
-	end
-	return self;
-end
-
-local function stats_tostring(stats)
-	local print = stats.session.print;
-	for _, stat_info in ipairs(stats) do
-		if #stat_info.output > 0 then
-			print("\n#"..stat_info[1]);
-			print("");
-			for _, v in ipairs(stat_info.output) do
-				print(v);
-			end
-			print("");
-		else
-			print(("%-50s %s"):format(stat_info[1], format_stat(stat_info[2], stat_info[3])));
-		end
-	end
-	return #stats.." statistics displayed";
-end
-
-local stats_mt = {__index = stats_methods, __tostring = stats_tostring }
-local function new_stats_context(self)
-	return setmetatable({ session = self.session, stats = true }, stats_mt);
-end
-
-function def_env.stats:show(filter)
-	-- luacheck: ignore 211/changed
-	local stats, changed, extra = require "core.statsmanager".get_stats();
-	local available, displayed = 0, 0;
-	local displayed_stats = new_stats_context(self);
-	for name, value in iterators.sorted_pairs(stats) do
-		available = available + 1;
-		if not filter or name:match(filter) then
-			displayed = displayed + 1;
-			local type = name:match(":(%a+)$");
-			table.insert(displayed_stats, {
-				name, type, value, extra[name];
-				output = {};
-			});
-		end
-	end
-	return displayed_stats;
-end
-
-
-
--------------
-
-function printbanner(session)
-	local option = module:get_option_string("console_banner", "full");
-	if option == "full" or option == "graphic" then
-		session.print [[
-                   ____                \   /     _
-                    |  _ \ _ __ ___  ___  _-_   __| |_   _
-                    | |_) | '__/ _ \/ __|/ _ \ / _` | | | |
-                    |  __/| | | (_) \__ \ |_| | (_| | |_| |
-                    |_|   |_|  \___/|___/\___/ \__,_|\__, |
-                    A study in simplicity            |___/
-
-]]
-	end
-	if option == "short" or option == "full" then
-	session.print("Welcome to the Prosody administration console. For a list of commands, type: help");
-	session.print("You may find more help on using this console in our online documentation at ");
-	session.print("https://prosody.im/doc/console\n");
-	end
-	if option ~= "short" and option ~= "full" and option ~= "graphic" then
-		session.print(option);
-	end
-end
-
 module:provides("net", {
 	name = "console";
 	listener = console_listener;