plugins/mod_admin_telnet.lua

   1 -- Prosody IM
   2 -- Copyright (C) 2008-2010 Matthew Wild
   3 -- Copyright (C) 2008-2010 Waqas Hussain
   4 --
   5 -- This project is MIT/X11 licensed. Please see the
   6 -- COPYING file in the source package for more information.
   7 --
   8
   9 module:set_global();
  10
  11 local hostmanager = require "core.hostmanager";
  12 local modulemanager = require "core.modulemanager";
  13 local s2smanager = require "core.s2smanager";
  14 local portmanager = require "core.portmanager";
  15
  16 local _G = _G;
  17
  18 local prosody = _G.prosody;
  19 local hosts = prosody.hosts;
  20 local incoming_s2s = prosody.incoming_s2s;
  21
  22 local console_listener = { default_port = 5582; default_mode = "*a"; interface = "127.0.0.1" };
  23
  24 local iterators = require "util.iterators";
  25 local keys, values = iterators.keys, iterators.values;
  26 local jid = require "util.jid";
  27 local jid_bare, jid_split = jid.bare, jid.split;
  28 local set, array = require "util.set", require "util.array";
  29 local cert_verify_identity = require "util.x509".verify_identity;
  30 local envload = require "util.envload".envload;
  31 local envloadfile = require "util.envload".envloadfile;
  32
  33 local commands = module:shared("commands")
  34 local def_env = module:shared("env");
  35 local default_env_mt = { __index = def_env };
  36 local core_post_stanza = prosody.core_post_stanza;
  37
  38 local function redirect_output(_G, session)
  39         local env = setmetatable({ print = session.print }, { __index = function (t, k) return rawget(_G, k); end });
  40         env.dofile = function(name)
  41                 local f, err = envloadfile(name, env);
  42                 if not f then return f, err; end
  43                 return f();
  44         end;
  45         return env;
  46 end
  47
  48 console = {};
  49
  50 function console:new_session(conn)
  51         local w = function(s) conn:write(s:gsub("\n", "\r\n")); end;
  52         local session = { conn = conn;
  53                         send = function (t) w(tostring(t)); end;
  54                         print = function (...)
  55                                 local t = {};
  56                                 for i=1,select("#", ...) do
  57                                         t[i] = tostring(select(i, ...));
  58                                 end
  59                                 w("| "..table.concat(t, "\t").."\n");
  60                         end;
  61                         disconnect = function () conn:close(); end;
  62                         };
  63         session.env = setmetatable({}, default_env_mt);
  64
  65         -- Load up environment with helper objects
  66         for name, t in pairs(def_env) do
  67                 if type(t) == "table" then
  68                         session.env[name] = setmetatable({ session = session }, { __index = t });
  69                 end
  70         end
  71
  72         return session;
  73 end
  74
  75 function console:process_line(session, line)
  76         local useglobalenv;
  77
  78         if line:match("^>") then
  79                 line = line:gsub("^>", "");
  80                 useglobalenv = true;
  81         elseif line == "\004" then
  82                 commands["bye"](session, line);
  83                 return;
  84         else
  85                 local command = line:match("^%w+") or line:match("%p");
  86                 if commands[command] then
  87                         commands[command](session, line);
  88                         return;
  89                 end
  90         end
  91
  92         session.env._ = line;
  93
  94         local chunkname = "=console";
  95         local env = (useglobalenv and redirect_output(_G, session)) or session.env or nil
  96         local chunk, err = envload("return "..line, chunkname, env);
  97         if not chunk then
  98                 chunk, err = envload(line, chunkname, env);
  99                 if not chunk then
 100                         err = err:gsub("^%[string .-%]:%d+: ", "");
 101                         err = err:gsub("^:%d+: ", "");
 102                         err = err:gsub("'<eof>'", "the end of the line");
 103                         session.print("Sorry, I couldn't understand that... "..err);
 104                         return;
 105                 end
 106         end
 107
 108         local ranok, taskok, message = pcall(chunk);
 109
 110         if not (ranok or message or useglobalenv) and commands[line:lower()] then
 111                 commands[line:lower()](session, line);
 112                 return;
 113         end
 114
 115         if not ranok then
 116                 session.print("Fatal error while running command, it did not complete");
 117                 session.print("Error: "..taskok);
 118                 return;
 119         end
 120
 121         if not message then
 122                 session.print("Result: "..tostring(taskok));
 123                 return;
 124         elseif (not taskok) and message then
 125                 session.print("Command completed with a problem");
 126                 session.print("Message: "..tostring(message));
 127                 return;
 128         end
 129
 130         session.print("OK: "..tostring(message));
 131 end
 132
 133 local sessions = {};
 134
 135 function console_listener.onconnect(conn)
 136         -- Handle new connection
 137         local session = console:new_session(conn);
 138         sessions[conn] = session;
 139         printbanner(session);
 140         session.send(string.char(0));
 141 end
 142
 143 function console_listener.onincoming(conn, data)
 144         local session = sessions[conn];
 145
 146         local partial = session.partial_data;
 147         if partial then
 148                 data = partial..data;
 149         end
 150
 151         for line in data:gmatch("[^\n]*[\n\004]") do
 152                 console:process_line(session, line);
 153                 session.send(string.char(0));
 154         end
 155         session.partial_data = data:match("[^\n]+$");
 156 end
 157
 158 function console_listener.ondisconnect(conn, err)
 159         local session = sessions[conn];
 160         if session then
 161                 session.disconnect();
 162                 sessions[conn] = nil;
 163         end
 164 end
 165
 166 -- Console commands --
 167 -- These are simple commands, not valid standalone in Lua
 168
 169 function commands.bye(session)
 170         session.print("See you! :)");
 171         session.disconnect();
 172 end
 173 commands.quit, commands.exit = commands.bye, commands.bye;
 174
 175 commands["!"] = function (session, data)
 176         if data:match("^!!") and session.env._ then
 177                 session.print("!> "..session.env._);
 178                 return console_listener.onincoming(session.conn, session.env._);
 179         end
 180         local old, new = data:match("^!(.-[^\\])!(.-)!$");
 181         if old and new then
 182                 local ok, res = pcall(string.gsub, session.env._, old, new);
 183                 if not ok then
 184                         session.print(res)
 185                         return;
 186                 end
 187                 session.print("!> "..res);
 188                 return console_listener.onincoming(session.conn, res);
 189         end
 190         session.print("Sorry, not sure what you want");
 191 end
 192
 193
 194 function commands.help(session, data)
 195         local print = session.print;
 196         local section = data:match("^help (%w+)");
 197         if not section then
 198                 print [[Commands are divided into multiple sections. For help on a particular section, ]]
 199                 print [[type: help SECTION (for example, 'help c2s'). Sections are: ]]
 200                 print [[]]
 201                 print [[c2s - Commands to manage local client-to-server sessions]]
 202                 print [[s2s - Commands to manage sessions between this server and others]]
 203                 print [[module - Commands to load/reload/unload modules/plugins]]
 204                 print [[host - Commands to activate, deactivate and list virtual hosts]]
 205                 print [[user - Commands to create and delete users, and change their passwords]]
 206                 print [[server - Uptime, version, shutting down, etc.]]
 207                 print [[config - Reloading the configuration, etc.]]
 208                 print [[console - Help regarding the console itself]]
 209         elseif section == "c2s" then
 210                 print [[c2s:show(jid) - Show all client sessions with the specified JID (or all if no JID given)]]
 211                 print [[c2s:show_insecure() - Show all unencrypted client connections]]
 212                 print [[c2s:show_secure() - Show all encrypted client connections]]
 213                 print [[c2s:close(jid) - Close all sessions for the specified JID]]
 214         elseif section == "s2s" then
 215                 print [[s2s:show(domain) - Show all s2s connections for the given domain (or all if no domain given)]]
 216                 print [[s2s:close(from, to) - Close a connection from one domain to another]]
 217                 print [[s2s:closeall(host) - Close all the incoming/outgoing s2s sessions to specified host]]
 218         elseif section == "module" then
 219                 print [[module:load(module, host) - Load the specified module on the specified host (or all hosts if none given)]]
 220                 print [[module:reload(module, host) - The same, but unloads and loads the module (saving state if the module supports it)]]
 221                 print [[module:unload(module, host) - The same, but just unloads the module from memory]]
 222                 print [[module:list(host) - List the modules loaded on the specified host]]
 223         elseif section == "host" then
 224                 print [[host:activate(hostname) - Activates the specified host]]
 225                 print [[host:deactivate(hostname) - Disconnects all clients on this host and deactivates]]
 226                 print [[host:list() - List the currently-activated hosts]]
 227         elseif section == "user" then
 228                 print [[user:create(jid, password) - Create the specified user account]]
 229                 print [[user:password(jid, password) - Set the password for the specified user account]]
 230                 print [[user:delete(jid) - Permanently remove the specified user account]]
 231                 print [[user:list(hostname, pattern) - List users on the specified host, optionally filtering with a pattern]]
 232         elseif section == "server" then
 233                 print [[server:version() - Show the server's version number]]
 234                 print [[server:uptime() - Show how long the server has been running]]
 235                 print [[server:shutdown(reason) - Shut down the server, with an optional reason to be broadcast to all connections]]
 236         elseif section == "config" then
 237                 print [[config:reload() - Reload the server configuration. Modules may need to be reloaded for changes to take effect.]]
 238         elseif section == "console" then
 239                 print [[Hey! Welcome to Prosody's admin console.]]
 240                 print [[First thing, if you're ever wondering how to get out, simply type 'quit'.]]
 241                 print [[Secondly, note that we don't support the full telnet protocol yet (it's coming)]]
 242                 print [[so you may have trouble using the arrow keys, etc. depending on your system.]]
 243                 print [[]]
 244                 print [[For now we offer a couple of handy shortcuts:]]
 245                 print [[!! - Repeat the last command]]
 246                 print [[!old!new! - repeat the last command, but with 'old' replaced by 'new']]
 247                 print [[]]
 248                 print [[For those well-versed in Prosody's internals, or taking instruction from those who are,]]
 249                 print [[you can prefix a command with > to escape the console sandbox, and access everything in]]
 250                 print [[the running server. Great fun, but be careful not to break anything :)]]
 251         end
 252         print [[]]
 253 end
 254
 255 -- Session environment --
 256 -- Anything in def_env will be accessible within the session as a global variable
 257
 258 def_env.server = {};
 259
 260 function def_env.server:insane_reload()
 261         prosody.unlock_globals();
 262         dofile "prosody"
 263         prosody = _G.prosody;
 264         return true, "Server reloaded";
 265 end
 266
 267 function def_env.server:version()
 268         return true, tostring(prosody.version or "unknown");
 269 end
 270
 271 function def_env.server:uptime()
 272         local t = os.time()-prosody.start_time;
 273         local seconds = t%60;
 274         t = (t - seconds)/60;
 275         local minutes = t%60;
 276         t = (t - minutes)/60;
 277         local hours = t%24;
 278         t = (t - hours)/24;
 279         local days = t;
 280         return true, string.format("This server has been running for %d day%s, %d hour%s and %d minute%s (since %s)",
 281                 days, (days ~= 1 and "s") or "", hours, (hours ~= 1 and "s") or "",
 282                 minutes, (minutes ~= 1 and "s") or "", os.date("%c", prosody.start_time));
 283 end
 284
 285 function def_env.server:shutdown(reason)
 286         prosody.shutdown(reason);
 287         return true, "Shutdown initiated";
 288 end
 289
 290 def_env.module = {};
 291
 292 local function get_hosts_set(hosts, module)
 293         if type(hosts) == "table" then
 294                 if hosts[1] then
 295                         return set.new(hosts);
 296                 elseif hosts._items then
 297                         return hosts;
 298                 end
 299         elseif type(hosts) == "string" then
 300                 return set.new { hosts };
 301         elseif hosts == nil then
 302                 local mm = require "modulemanager";
 303                 local hosts_set = set.new(array.collect(keys(prosody.hosts)))
 304                         / function (host) return (prosody.hosts[host].type == "local" or module and mm.is_loaded(host, module)) and host or nil; end;
 305                 if module and mm.get_module("*", module) then
 306                         hosts_set:add("*");
 307                 end
 308                 return hosts_set;
 309         end
 310 end
 311
 312 function def_env.module:load(name, hosts, config)
 313         local mm = require "modulemanager";
 314
 315         hosts = get_hosts_set(hosts);
 316
 317         -- Load the module for each host
 318         local ok, err, count, mod = true, nil, 0, nil;
 319         for host in hosts do
 320                 if (not mm.is_loaded(host, name)) then
 321                         mod, err = mm.load(host, name, config);
 322                         if not mod then
 323                                 ok = false;
 324                                 if err == "global-module-already-loaded" then
 325                                         if count > 0 then
 326                                                 ok, err, count = true, nil, 1;
 327                                         end
 328                                         break;
 329                                 end
 330                                 self.session.print(err or "Unknown error loading module");
 331                         else
 332                                 count = count + 1;
 333                                 self.session.print("Loaded for "..mod.module.host);
 334                         end
 335                 end
 336         end
 337
 338         return ok, (ok and "Module loaded onto "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
 339 end
 340
 341 function def_env.module:unload(name, hosts)
 342         local mm = require "modulemanager";
 343
 344         hosts = get_hosts_set(hosts, name);
 345
 346         -- Unload the module for each host
 347         local ok, err, count = true, nil, 0;
 348         for host in hosts do
 349                 if mm.is_loaded(host, name) then
 350                         ok, err = mm.unload(host, name);
 351                         if not ok then
 352                                 ok = false;
 353                                 self.session.print(err or "Unknown error unloading module");
 354                         else
 355                                 count = count + 1;
 356                                 self.session.print("Unloaded from "..host);
 357                         end
 358                 end
 359         end
 360         return ok, (ok and "Module unloaded from "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
 361 end
 362
 363 function def_env.module:reload(name, hosts)
 364         local mm = require "modulemanager";
 365
 366         hosts = array.collect(get_hosts_set(hosts, name)):sort(function (a, b)
 367                 if a == "*" then return true
 368                 elseif b == "*" then return false
 369                 else return a < b; end
 370         end);
 371
 372         -- Reload the module for each host
 373         local ok, err, count = true, nil, 0;
 374         for _, host in ipairs(hosts) do
 375                 if mm.is_loaded(host, name) then
 376                         ok, err = mm.reload(host, name);
 377                         if not ok then
 378                                 ok = false;
 379                                 self.session.print(err or "Unknown error reloading module");
 380                         else
 381                                 count = count + 1;
 382                                 if ok == nil then
 383                                         ok = true;
 384                                 end
 385                                 self.session.print("Reloaded on "..host);
 386                         end
 387                 end
 388         end
 389         return ok, (ok and "Module reloaded on "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
 390 end
 391
 392 function def_env.module:list(hosts)
 393         if hosts == nil then
 394                 hosts = array.collect(keys(prosody.hosts));
 395                 table.insert(hosts, 1, "*");
 396         end
 397         if type(hosts) == "string" then
 398                 hosts = { hosts };
 399         end
 400         if type(hosts) ~= "table" then
 401                 return false, "Please supply a host or a list of hosts you would like to see";
 402         end
 403
 404         local print = self.session.print;
 405         for _, host in ipairs(hosts) do
 406                 print((host == "*" and "Global" or host)..":");
 407                 local modules = array.collect(keys(modulemanager.get_modules(host) or {})):sort();
 408                 if #modules == 0 then
 409                         if prosody.hosts[host] then
 410                                 print("    No modules loaded");
 411                         else
 412                                 print("    Host not found");
 413                         end
 414                 else
 415                         for _, name in ipairs(modules) do
 416                                 print("    "..name);
 417                         end
 418                 end
 419         end
 420 end
 421
 422 def_env.config = {};
 423 function def_env.config:load(filename, format)
 424         local config_load = require "core.configmanager".load;
 425         local ok, err = config_load(filename, format);
 426         if not ok then
 427                 return false, err or "Unknown error loading config";
 428         end
 429         return true, "Config loaded";
 430 end
 431
 432 function def_env.config:get(host, section, key)
 433         local config_get = require "core.configmanager".get
 434         return true, tostring(config_get(host, section, key));
 435 end
 436
 437 function def_env.config:reload()
 438         local ok, err = prosody.reload_config();
 439         return ok, (ok and "Config reloaded (you may need to reload modules to take effect)") or tostring(err);
 440 end
 441
 442 def_env.hosts = {};
 443 function def_env.hosts:list()
 444         for host, host_session in pairs(hosts) do
 445                 self.session.print(host);
 446         end
 447         return true, "Done";
 448 end
 449
 450 function def_env.hosts:add(name)
 451 end
 452
 453 def_env.c2s = {};
 454
 455 local function show_c2s(callback)
 456         for hostname, host in pairs(hosts) do
 457                 for username, user in pairs(host.sessions or {}) do
 458                         for resource, session in pairs(user.sessions or {}) do
 459                                 local jid = username.."@"..hostname.."/"..resource;
 460                                 callback(jid, session);
 461                         end
 462                 end
 463         end
 464 end
 465
 466 function def_env.c2s:count(match_jid)
 467         local count = 0;
 468         show_c2s(function (jid, session)
 469                 if (not match_jid) or jid:match(match_jid) then
 470                         count = count + 1;
 471                 end
 472         end);
 473         return true, "Total: "..count.." clients";
 474 end
 475
 476 function def_env.c2s:show(match_jid)
 477         local print, count = self.session.print, 0;
 478         local curr_host;
 479         show_c2s(function (jid, session)
 480                 if curr_host ~= session.host then
 481                         curr_host = session.host;
 482                         print(curr_host);
 483                 end
 484                 if (not match_jid) or jid:match(match_jid) then
 485                         count = count + 1;
 486                         local status, priority = "unavailable", tostring(session.priority or "-");
 487                         if session.presence then
 488                                 status = session.presence:child_with_name("show");
 489                                 if status then
 490                                         status = status:get_text() or "[invalid!]";
 491                                 else
 492                                         status = "available";
 493                                 end
 494                         end
 495                         print("   "..jid.." - "..status.."("..priority..")");
 496                 end
 497         end);
 498         return true, "Total: "..count.." clients";
 499 end
 500
 501 function def_env.c2s:show_insecure(match_jid)
 502         local print, count = self.session.print, 0;
 503         show_c2s(function (jid, session)
 504                 if ((not match_jid) or jid:match(match_jid)) and not session.secure then
 505                         count = count + 1;
 506                         print(jid);
 507                 end
 508         end);
 509         return true, "Total: "..count.." insecure client connections";
 510 end
 511
 512 function def_env.c2s:show_secure(match_jid)
 513         local print, count = self.session.print, 0;
 514         show_c2s(function (jid, session)
 515                 if ((not match_jid) or jid:match(match_jid)) and session.secure then
 516                         count = count + 1;
 517                         print(jid);
 518                 end
 519         end);
 520         return true, "Total: "..count.." secure client connections";
 521 end
 522
 523 function def_env.c2s:close(match_jid)
 524         local count = 0;
 525         show_c2s(function (jid, session)
 526                 if jid == match_jid or jid_bare(jid) == match_jid then
 527                         count = count + 1;
 528                         session:close();
 529                 end
 530         end);
 531         return true, "Total: "..count.." sessions closed";
 532 end
 533
 534 local function session_flags(session, line)
 535         if session.cert_identity_status == "valid" then
 536                 line[#line+1] = "(secure)";
 537         elseif session.secure then
 538                 line[#line+1] = "(encrypted)";
 539         end
 540         if session.compressed then
 541                 line[#line+1] = "(compressed)";
 542         end
 543         if session.smacks then
 544                 line[#line+1] = "(sm)";
 545         end
 546         if session.conn and session.conn:ip():match(":") then
 547                 line[#line+1] = "(IPv6)";
 548         end
 549         return table.concat(line, " ");
 550 end
 551
 552 def_env.s2s = {};
 553 function def_env.s2s:show(match_jid)
 554         local _print = self.session.print;
 555         local print = self.session.print;
 556
 557         local count_in, count_out = 0,0;
 558
 559         for host, host_session in pairs(hosts) do
 560                 print = function (...) _print(host); _print(...); print = _print; end
 561                 for remotehost, session in pairs(host_session.s2sout) do
 562                         if (not match_jid) or remotehost:match(match_jid) or host:match(match_jid) then
 563                                 count_out = count_out + 1;
 564                                 print(session_flags(session, {"   ", host, "->", remotehost}));
 565                                 if session.sendq then
 566                                         print("        There are "..#session.sendq.." queued outgoing stanzas for this connection");
 567                                 end
 568                                 if session.type == "s2sout_unauthed" then
 569                                         if session.connecting then
 570                                                 print("        Connection not yet established");
 571                                                 if not session.srv_hosts then
 572                                                         if not session.conn then
 573                                                                 print("        We do not yet have a DNS answer for this host's SRV records");
 574                                                         else
 575                                                                 print("        This host has no SRV records, using A record instead");
 576                                                         end
 577                                                 elseif session.srv_choice then
 578                                                         print("        We are on SRV record "..session.srv_choice.." of "..#session.srv_hosts);
 579                                                         local srv_choice = session.srv_hosts[session.srv_choice];
 580                                                         print("        Using "..(srv_choice.target or ".")..":"..(srv_choice.port or 5269));
 581                                                 end
 582                                         elseif session.notopen then
 583                                                 print("        The <stream> has not yet been opened");
 584                                         elseif not session.dialback_key then
 585                                                 print("        Dialback has not been initiated yet");
 586                                         elseif session.dialback_key then
 587                                                 print("        Dialback has been requested, but no result received");
 588                                         end
 589                                 end
 590                         end
 591                 end
 592                 local subhost_filter = function (h)
 593                                 return (match_jid and h:match(match_jid));
 594                         end
 595                 for session in pairs(incoming_s2s) do
 596                         if session.to_host == host and ((not match_jid) or host:match(match_jid)
 597                                 or (session.from_host and session.from_host:match(match_jid))
 598                                 -- Pft! is what I say to list comprehensions
 599                                 or (session.hosts and #array.collect(keys(session.hosts)):filter(subhost_filter)>0)) then
 600                                 count_in = count_in + 1;
 601                                 print(session_flags(session, {"   ", host, "<-", session.from_host or "(unknown)"}));
 602                                 if session.type == "s2sin_unauthed" then
 603                                                 print("        Connection not yet authenticated");
 604                                 end
 605                                 for name in pairs(session.hosts) do
 606                                         if name ~= session.from_host then
 607                                                 print("        also hosts "..tostring(name));
 608                                         end
 609                                 end
 610                         end
 611                 end
 612
 613                 print = _print;
 614         end
 615
 616         for session in pairs(incoming_s2s) do
 617                 if not session.to_host and ((not match_jid) or session.from_host and session.from_host:match(match_jid)) then
 618                         count_in = count_in + 1;
 619                         print("Other incoming s2s connections");
 620                         print("    (unknown) <- "..(session.from_host or "(unknown)"));
 621                 end
 622         end
 623
 624         return true, "Total: "..count_out.." outgoing, "..count_in.." incoming connections";
 625 end
 626
 627 local function print_subject(print, subject)
 628         for _, entry in ipairs(subject) do
 629                 print(
 630                         ("    %s: %q"):format(
 631                                 entry.name or entry.oid,
 632                                 entry.value:gsub("[\r\n%z%c]", " ")
 633                         )
 634                 );
 635         end
 636 end
 637
 638 -- As much as it pains me to use the 0-based depths that OpenSSL does,
 639 -- I think there's going to be more confusion among operators if we
 640 -- break from that.
 641 local function print_errors(print, errors)
 642         for depth, t in ipairs(errors) do
 643                 print(
 644                         ("    %d: %s"):format(
 645                                 depth-1,
 646                                 table.concat(t, "\n|        ")
 647                         )
 648                 );
 649         end
 650 end
 651
 652 function def_env.s2s:showcert(domain)
 653         local ser = require "util.serialization".serialize;
 654         local print = self.session.print;
 655         local domain_sessions = set.new(array.collect(keys(incoming_s2s)))
 656                 /function(session) return session.from_host == domain and session or nil; end;
 657         for local_host in values(prosody.hosts) do
 658                 local s2sout = local_host.s2sout;
 659                 if s2sout and s2sout[domain] then
 660                         domain_sessions:add(s2sout[domain]);
 661                 end
 662         end
 663         local cert_set = {};
 664         for session in domain_sessions do
 665                 local conn = session.conn;
 666                 conn = conn and conn:socket();
 667                 if not conn.getpeerchain then
 668                         if conn.dohandshake then
 669                                 error("This version of LuaSec does not support certificate viewing");
 670                         end
 671                 else
 672                         local certs = conn:getpeerchain();
 673                         local cert = certs[1];
 674                         if cert then
 675                                 local digest = cert:digest("sha1");
 676                                 if not cert_set[digest] then
 677                                         local chain_valid, chain_errors = conn:getpeerverification();
 678                                         cert_set[digest] = {
 679                                                 {
 680                                                   from = session.from_host,
 681                                                   to = session.to_host,
 682                                                   direction = session.direction
 683                                                 };
 684                                                 chain_valid = chain_valid;
 685                                                 chain_errors = chain_errors;
 686                                                 certs = certs;
 687                                         };
 688                                 else
 689                                         table.insert(cert_set[digest], {
 690                                                 from = session.from_host,
 691                                                 to = session.to_host,
 692                                                 direction = session.direction
 693                                         });
 694                                 end
 695                         end
 696                 end
 697         end
 698         local domain_certs = array.collect(values(cert_set));
 699         -- Phew. We now have a array of unique certificates presented by domain.
 700         local n_certs = #domain_certs;
 701
 702         if n_certs == 0 then
 703                 return "No certificates found for "..domain;
 704         end
 705
 706         local function _capitalize_and_colon(byte)
 707                 return string.upper(byte)..":";
 708         end
 709         local function pretty_fingerprint(hash)
 710                 return hash:gsub("..", _capitalize_and_colon):sub(1, -2);
 711         end
 712
 713         for cert_info in values(domain_certs) do
 714                 local certs = cert_info.certs;
 715                 local cert = certs[1];
 716                 print("---")
 717                 print("Fingerprint (SHA1): "..pretty_fingerprint(cert:digest("sha1")));
 718                 print("");
 719                 local n_streams = #cert_info;
 720                 print("Currently used on "..n_streams.." stream"..(n_streams==1 and "" or "s")..":");
 721                 for _, stream in ipairs(cert_info) do
 722                         if stream.direction == "incoming" then
 723                                 print("    "..stream.to.." <- "..stream.from);
 724                         else
 725                                 print("    "..stream.from.." -> "..stream.to);
 726                         end
 727                 end
 728                 print("");
 729                 local chain_valid, errors = cert_info.chain_valid, cert_info.chain_errors;
 730                 local valid_identity = cert_verify_identity(domain, "xmpp-server", cert);
 731                 if chain_valid then
 732                         print("Trusted certificate: Yes");
 733                 else
 734                         print("Trusted certificate: No");
 735                         print_errors(print, errors);
 736                 end
 737                 print("");
 738                 print("Issuer: ");
 739                 print_subject(print, cert:issuer());
 740                 print("");
 741                 print("Valid for "..domain..": "..(valid_identity and "Yes" or "No"));
 742                 print("Subject:");
 743                 print_subject(print, cert:subject());
 744         end
 745         print("---");
 746         return ("Showing "..n_certs.." certificate"
 747                 ..(n_certs==1 and "" or "s")
 748                 .." presented by "..domain..".");
 749 end
 750
 751 function def_env.s2s:close(from, to)
 752         local print, count = self.session.print, 0;
 753
 754         if not (from and to) then
 755                 return false, "Syntax: s2s:close('from', 'to') - Closes all s2s sessions from 'from' to 'to'";
 756         elseif from == to then
 757                 return false, "Both from and to are the same... you can't do that :)";
 758         end
 759
 760         if hosts[from] and not hosts[to] then
 761                 -- Is an outgoing connection
 762                 local session = hosts[from].s2sout[to];
 763                 if not session then
 764                         print("No outgoing connection from "..from.." to "..to)
 765                 else
 766                         (session.close or s2smanager.destroy_session)(session);
 767                         count = count + 1;
 768                         print("Closed outgoing session from "..from.." to "..to);
 769                 end
 770         elseif hosts[to] and not hosts[from] then
 771                 -- Is an incoming connection
 772                 for session in pairs(incoming_s2s) do
 773                         if session.to_host == to and session.from_host == from then
 774                                 (session.close or s2smanager.destroy_session)(session);
 775                                 count = count + 1;
 776                         end
 777                 end
 778
 779                 if count == 0 then
 780                         print("No incoming connections from "..from.." to "..to);
 781                 else
 782                         print("Closed "..count.." incoming session"..((count == 1 and "") or "s").." from "..from.." to "..to);
 783                 end
 784         elseif hosts[to] and hosts[from] then
 785                 return false, "Both of the hostnames you specified are local, there are no s2s sessions to close";
 786         else
 787                 return false, "Neither of the hostnames you specified are being used on this server";
 788         end
 789
 790         return true, "Closed "..count.." s2s session"..((count == 1 and "") or "s");
 791 end
 792
 793 function def_env.s2s:closeall(host)
 794         local count = 0;
 795
 796         if not host or type(host) ~= "string" then return false, "wrong syntax: please use s2s:closeall('hostname.tld')"; end
 797         if hosts[host] then
 798                 for session in pairs(incoming_s2s) do
 799                         if session.to_host == host then
 800                                 (session.close or s2smanager.destroy_session)(session);
 801                                 count = count + 1;
 802                         end
 803                 end
 804                 for _, session in pairs(hosts[host].s2sout) do
 805                         (session.close or s2smanager.destroy_session)(session);
 806                         count = count + 1;
 807                 end
 808         else
 809                 for session in pairs(incoming_s2s) do
 810                         if session.from_host == host then
 811                                 (session.close or s2smanager.destroy_session)(session);
 812                                 count = count + 1;
 813                         end
 814                 end
 815                 for _, h in pairs(hosts) do
 816                         if h.s2sout[host] then
 817                                 (h.s2sout[host].close or s2smanager.destroy_session)(h.s2sout[host]);
 818                                 count = count + 1;
 819                         end
 820                 end
 821         end
 822
 823         if count == 0 then return false, "No sessions to close.";
 824         else return true, "Closed "..count.." s2s session"..((count == 1 and "") or "s"); end
 825 end
 826
 827 def_env.host = {}; def_env.hosts = def_env.host;
 828
 829 function def_env.host:activate(hostname, config)
 830         return hostmanager.activate(hostname, config);
 831 end
 832 function def_env.host:deactivate(hostname, reason)
 833         return hostmanager.deactivate(hostname, reason);
 834 end
 835
 836 function def_env.host:list()
 837         local print = self.session.print;
 838         local i = 0;
 839         for host in values(array.collect(keys(prosody.hosts)):sort()) do
 840                 i = i + 1;
 841                 print(host);
 842         end
 843         return true, i.." hosts";
 844 end
 845
 846 def_env.port = {};
 847
 848 function def_env.port:list()
 849         local print = self.session.print;
 850         local services = portmanager.get_active_services().data;
 851         local ordered_services, n_ports = {}, 0;
 852         for service, interfaces in pairs(services) do
 853                 table.insert(ordered_services, service);
 854         end
 855         table.sort(ordered_services);
 856         for _, service in ipairs(ordered_services) do
 857                 local ports_list = {};
 858                 for interface, ports in pairs(services[service]) do
 859                         for port in pairs(ports) do
 860                                 table.insert(ports_list, "["..interface.."]:"..port);
 861                         end
 862                 end
 863                 n_ports = n_ports + #ports_list;
 864                 print(service..": "..table.concat(ports_list, ", "));
 865         end
 866         return true, #ordered_services.." services listening on "..n_ports.." ports";
 867 end
 868
 869 function def_env.port:close(close_port, close_interface)
 870         close_port = assert(tonumber(close_port), "Invalid port number");
 871         local n_closed = 0;
 872         local services = portmanager.get_active_services().data;
 873         for service, interfaces in pairs(services) do
 874                 for interface, ports in pairs(interfaces) do
 875                         if not close_interface or close_interface == interface then
 876                                 if ports[close_port] then
 877                                         self.session.print("Closing ["..interface.."]:"..close_port.."...");
 878                                         local ok, err = portmanager.close(interface, close_port)
 879                                         if not ok then
 880                                                 self.session.print("Failed to close "..interface.." "..close_port..": "..err);
 881                                         else
 882                                                 n_closed = n_closed + 1;
 883                                         end
 884                                 end
 885                         end
 886                 end
 887         end
 888         return true, "Closed "..n_closed.." ports";
 889 end
 890
 891 def_env.muc = {};
 892
 893 local console_room_mt = {
 894         __index = function (self, k) return self.room[k]; end;
 895         __tostring = function (self)
 896                 return "MUC room <"..self.room.jid..">";
 897         end;
 898 };
 899
 900 function def_env.muc:room(room_jid)
 901         local room_name, host = jid_split(room_jid);
 902         if not hosts[host] then
 903                 return nil, "No such host: "..host;
 904         elseif not hosts[host].modules.muc then
 905                 return nil, "Host '"..host.."' is not a MUC service";
 906         end
 907         local room_obj = hosts[host].modules.muc.rooms[room_jid];
 908         if not room_obj then
 909                 return nil, "No such room: "..room_jid;
 910         end
 911         return setmetatable({ room = room_obj }, console_room_mt);
 912 end
 913
 914 local um = require"core.usermanager";
 915
 916 def_env.user = {};
 917 function def_env.user:create(jid, password)
 918         local username, host = jid_split(jid);
 919         if um.user_exists(username, host) then
 920                 return nil, "User exists";
 921         end
 922         local ok, err = um.create_user(username, password, host);
 923         if ok then
 924                 return true, "User created";
 925         else
 926                 return nil, "Could not create user: "..err;
 927         end
 928 end
 929
 930 function def_env.user:delete(jid)
 931         local username, host = jid_split(jid);
 932         if not um.user_exists(username, host) then
 933                 return nil, "No such user";
 934         end
 935         local ok, err = um.delete_user(username, host);
 936         if ok then
 937                 return true, "User deleted";
 938         else
 939                 return nil, "Could not delete user: "..err;
 940         end
 941 end
 942
 943 function def_env.user:password(jid, password)
 944         local username, host = jid_split(jid);
 945         if not um.user_exists(username, host) then
 946                 return nil, "No such user";
 947         end
 948         local ok, err = um.set_password(username, password, host);
 949         if ok then
 950                 return true, "User password changed";
 951         else
 952                 return nil, "Could not change password for user: "..err;
 953         end
 954 end
 955
 956 function def_env.user:list(host, pat)
 957         if not host then
 958                 return nil, "No host given";
 959         elseif not hosts[host] then
 960                 return nil, "No such host";
 961         end
 962         local print = self.session.print;
 963         local count = 0;
 964         for user in um.users(host) do
 965                 if not pat or user:match(pat) then
 966                         print(user.."@"..host);
 967                 end
 968                 count = count + 1;
 969         end
 970         return true, count .. " users total";
 971 end
 972
 973 def_env.xmpp = {};
 974
 975 local st = require "util.stanza";
 976 function def_env.xmpp:ping(localhost, remotehost)
 977         if hosts[localhost] then
 978                 core_post_stanza(hosts[localhost],
 979                         st.iq{ from=localhost, to=remotehost, type="get", id="ping" }
 980                                 :tag("ping", {xmlns="urn:xmpp:ping"}));
 981                 return true, "Sent ping";
 982         else
 983                 return nil, "No such host";
 984         end
 985 end
 986
 987 -------------
 988
 989 function printbanner(session)
 990         local option = module:get_option("console_banner");
 991         if option == nil or option == "full" or option == "graphic" then
 992                 session.print [[
 993                    ____                \   /     _
 994                     |  _ \ _ __ ___  ___  _-_   __| |_   _
 995                     | |_) | '__/ _ \/ __|/ _ \ / _` | | | |
 996                     |  __/| | | (_) \__ \ |_| | (_| | |_| |
 997                     |_|   |_|  \___/|___/\___/ \__,_|\__, |
 998                     A study in simplicity            |___/
 999
1000 ]]
1001         end
1002         if option == nil or option == "short" or option == "full" then
1003         session.print("Welcome to the Prosody administration console. For a list of commands, type: help");
1004         session.print("You may find more help on using this console in our online documentation at ");
1005         session.print("http://prosody.im/doc/console\n");
1006         end
1007         if option and option ~= "short" and option ~= "full" and option ~= "graphic" then
1008                 if type(option) == "string" then
1009                         session.print(option)
1010                 elseif type(option) == "function" then
1011                         module:log("warn", "Using functions as value for the console_banner option is no longer supported");
1012                 end
1013         end
1014 end
1015
1016 module:provides("net", {
1017         name = "console";
1018         listener = console_listener;
1019         default_port = 5582;
1020         private = true;
1021 });