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 _G = _G;
  12
  13 local prosody = _G.prosody;
  14 local hosts = prosody.hosts;
  15
  16 local console_listener = { default_port = 5582; default_mode = "*l"; interface = "127.0.0.1" };
  17
  18 local iterators = require "util.iterators";
  19 local keys, values = iterators.keys, iterators.values;
  20 local jid_bare = require "util.jid".bare;
  21 local set, array = require "util.set", require "util.array";
  22 local cert_verify_identity = require "util.x509".verify_identity;
  23
  24 local commands = module:shared("commands")
  25 local def_env = module:shared("env");
  26 local default_env_mt = { __index = def_env };
  27
  28 local function redirect_output(_G, session)
  29         local env = setmetatable({ print = session.print }, { __index = function (t, k) return rawget(_G, k); end });
  30         env.dofile = function(name)
  31                 local f, err = loadfile(name);
  32                 if not f then return f, err; end
  33                 return setfenv(f, env)();
  34         end;
  35         return env;
  36 end
  37
  38 console = {};
  39
  40 function console:new_session(conn)
  41         local w = function(s) conn:write(s:gsub("\n", "\r\n")); end;
  42         local session = { conn = conn;
  43                         send = function (t) w(tostring(t)); end;
  44                         print = function (...)
  45                                 local t = {};
  46                                 for i=1,select("#", ...) do
  47                                         t[i] = tostring(select(i, ...));
  48                                 end
  49                                 w("| "..table.concat(t, "\t").."\n");
  50                         end;
  51                         disconnect = function () conn:close(); end;
  52                         };
  53         session.env = setmetatable({}, default_env_mt);
  54
  55         -- Load up environment with helper objects
  56         for name, t in pairs(def_env) do
  57                 if type(t) == "table" then
  58                         session.env[name] = setmetatable({ session = session }, { __index = t });
  59                 end
  60         end
  61
  62         return session;
  63 end
  64
  65 local sessions = {};
  66
  67 function console_listener.onconnect(conn)
  68         -- Handle new connection
  69         local session = console:new_session(conn);
  70         sessions[conn] = session;
  71         printbanner(session);
  72         session.send(string.char(0));
  73 end
  74
  75 function console_listener.onincoming(conn, data)
  76         local session = sessions[conn];
  77
  78         -- Handle data
  79         (function(session, data)
  80                 local useglobalenv;
  81
  82                 if data:match("^>") then
  83                         data = data:gsub("^>", "");
  84                         useglobalenv = true;
  85                 elseif data == "\004" then
  86                         commands["bye"](session, data);
  87                         return;
  88                 else
  89                         local command = data:lower();
  90                         command = data:match("^%w+") or data:match("%p");
  91                         if commands[command] then
  92                                 commands[command](session, data);
  93                                 return;
  94                         end
  95                 end
  96
  97                 session.env._ = data;
  98
  99                 local chunkname = "=console";
 100                 local chunk, err = loadstring("return "..data, chunkname);
 101                 if not chunk then
 102                         chunk, err = loadstring(data, chunkname);
 103                         if not chunk then
 104                                 err = err:gsub("^%[string .-%]:%d+: ", "");
 105                                 err = err:gsub("^:%d+: ", "");
 106                                 err = err:gsub("'<eof>'", "the end of the line");
 107                                 session.print("Sorry, I couldn't understand that... "..err);
 108                                 return;
 109                         end
 110                 end
 111
 112                 setfenv(chunk, (useglobalenv and redirect_output(_G, session)) or session.env or nil);
 113
 114                 local ranok, taskok, message = pcall(chunk);
 115
 116                 if not (ranok or message or useglobalenv) and commands[data:lower()] then
 117                         commands[data:lower()](session, data);
 118                         return;
 119                 end
 120
 121                 if not ranok then
 122                         session.print("Fatal error while running command, it did not complete");
 123                         session.print("Error: "..taskok);
 124                         return;
 125                 end
 126
 127                 if not message then
 128                         session.print("Result: "..tostring(taskok));
 129                         return;
 130                 elseif (not taskok) and message then
 131                         session.print("Command completed with a problem");
 132                         session.print("Message: "..tostring(message));
 133                         return;
 134                 end
 135
 136                 session.print("OK: "..tostring(message));
 137         end)(session, data);
 138
 139         session.send(string.char(0));
 140 end
 141
 142 function console_listener.ondisconnect(conn, err)
 143         local session = sessions[conn];
 144         if session then
 145                 session.disconnect();
 146                 sessions[conn] = nil;
 147         end
 148 end
 149
 150 -- Console commands --
 151 -- These are simple commands, not valid standalone in Lua
 152
 153 function commands.bye(session)
 154         session.print("See you! :)");
 155         session.disconnect();
 156 end
 157 commands.quit, commands.exit = commands.bye, commands.bye;
 158
 159 commands["!"] = function (session, data)
 160         if data:match("^!!") and session.env._ then
 161                 session.print("!> "..session.env._);
 162                 return console_listener.onincoming(session.conn, session.env._);
 163         end
 164         local old, new = data:match("^!(.-[^\\])!(.-)!$");
 165         if old and new then
 166                 local ok, res = pcall(string.gsub, session.env._, old, new);
 167                 if not ok then
 168                         session.print(res)
 169                         return;
 170                 end
 171                 session.print("!> "..res);
 172                 return console_listener.onincoming(session.conn, res);
 173         end
 174         session.print("Sorry, not sure what you want");
 175 end
 176
 177
 178 function commands.help(session, data)
 179         local print = session.print;
 180         local section = data:match("^help (%w+)");
 181         if not section then
 182                 print [[Commands are divided into multiple sections. For help on a particular section, ]]
 183                 print [[type: help SECTION (for example, 'help c2s'). Sections are: ]]
 184                 print [[]]
 185                 print [[c2s - Commands to manage local client-to-server sessions]]
 186                 print [[s2s - Commands to manage sessions between this server and others]]
 187                 print [[module - Commands to load/reload/unload modules/plugins]]
 188                 print [[host - Commands to activate, deactivate and list virtual hosts]]
 189                 print [[server - Uptime, version, shutting down, etc.]]
 190                 print [[config - Reloading the configuration, etc.]]
 191                 print [[console - Help regarding the console itself]]
 192         elseif section == "c2s" then
 193                 print [[c2s:show(jid) - Show all client sessions with the specified JID (or all if no JID given)]]
 194                 print [[c2s:show_insecure() - Show all unencrypted client connections]]
 195                 print [[c2s:show_secure() - Show all encrypted client connections]]
 196                 print [[c2s:close(jid) - Close all sessions for the specified JID]]
 197         elseif section == "s2s" then
 198                 print [[s2s:show(domain) - Show all s2s connections for the given domain (or all if no domain given)]]
 199                 print [[s2s:close(from, to) - Close a connection from one domain to another]]
 200         elseif section == "module" then
 201                 print [[module:load(module, host) - Load the specified module on the specified host (or all hosts if none given)]]
 202                 print [[module:reload(module, host) - The same, but unloads and loads the module (saving state if the module supports it)]]
 203                 print [[module:unload(module, host) - The same, but just unloads the module from memory]]
 204                 print [[module:list(host) - List the modules loaded on the specified host]]
 205         elseif section == "host" then
 206                 print [[host:activate(hostname) - Activates the specified host]]
 207                 print [[host:deactivate(hostname) - Disconnects all clients on this host and deactivates]]
 208                 print [[host:list() - List the currently-activated hosts]]
 209         elseif section == "server" then
 210                 print [[server:version() - Show the server's version number]]
 211                 print [[server:uptime() - Show how long the server has been running]]
 212                 print [[server:shutdown(reason) - Shut down the server, with an optional reason to be broadcast to all connections]]
 213         elseif section == "config" then
 214                 print [[config:reload() - Reload the server configuration. Modules may need to be reloaded for changes to take effect.]]
 215         elseif section == "console" then
 216                 print [[Hey! Welcome to Prosody's admin console.]]
 217                 print [[First thing, if you're ever wondering how to get out, simply type 'quit'.]]
 218                 print [[Secondly, note that we don't support the full telnet protocol yet (it's coming)]]
 219                 print [[so you may have trouble using the arrow keys, etc. depending on your system.]]
 220                 print [[]]
 221                 print [[For now we offer a couple of handy shortcuts:]]
 222                 print [[!! - Repeat the last command]]
 223                 print [[!old!new! - repeat the last command, but with 'old' replaced by 'new']]
 224                 print [[]]
 225                 print [[For those well-versed in Prosody's internals, or taking instruction from those who are,]]
 226                 print [[you can prefix a command with > to escape the console sandbox, and access everything in]]
 227                 print [[the running server. Great fun, but be careful not to break anything :)]]
 228         end
 229         print [[]]
 230 end
 231
 232 -- Session environment --
 233 -- Anything in def_env will be accessible within the session as a global variable
 234
 235 def_env.server = {};
 236
 237 function def_env.server:insane_reload()
 238         prosody.unlock_globals();
 239         dofile "prosody"
 240         prosody = _G.prosody;
 241         return true, "Server reloaded";
 242 end
 243
 244 function def_env.server:version()
 245         return true, tostring(prosody.version or "unknown");
 246 end
 247
 248 function def_env.server:uptime()
 249         local t = os.time()-prosody.start_time;
 250         local seconds = t%60;
 251         t = (t - seconds)/60;
 252         local minutes = t%60;
 253         t = (t - minutes)/60;
 254         local hours = t%24;
 255         t = (t - hours)/24;
 256         local days = t;
 257         return true, string.format("This server has been running for %d day%s, %d hour%s and %d minute%s (since %s)",
 258                 days, (days ~= 1 and "s") or "", hours, (hours ~= 1 and "s") or "",
 259                 minutes, (minutes ~= 1 and "s") or "", os.date("%c", prosody.start_time));
 260 end
 261
 262 function def_env.server:shutdown(reason)
 263         prosody.shutdown(reason);
 264         return true, "Shutdown initiated";
 265 end
 266
 267 def_env.module = {};
 268
 269 local function get_hosts_set(hosts, module)
 270         if type(hosts) == "table" then
 271                 if hosts[1] then
 272                         return set.new(hosts);
 273                 elseif hosts._items then
 274                         return hosts;
 275                 end
 276         elseif type(hosts) == "string" then
 277                 return set.new { hosts };
 278         elseif hosts == nil then
 279                 local mm = require "modulemanager";
 280                 local hosts_set = set.new(array.collect(keys(prosody.hosts)))
 281                         / function (host) return prosody.hosts[host].type == "local" or module and mm.is_loaded(host, module); end;
 282                 if module and mm.get_module("*", module) then
 283                         hosts_set:add("*");
 284                 end
 285                 return hosts_set;
 286         end
 287 end
 288
 289 function def_env.module:load(name, hosts, config)
 290         local mm = require "modulemanager";
 291
 292         hosts = get_hosts_set(hosts);
 293
 294         -- Load the module for each host
 295         local ok, err, count, mod = true, nil, 0, nil;
 296         for host in hosts do
 297                 if (not mm.is_loaded(host, name)) then
 298                         mod, err = mm.load(host, name, config);
 299                         if not mod then
 300                                 ok = false;
 301                                 if err == "global-module-already-loaded" then
 302                                         if count > 0 then
 303                                                 ok, err, count = true, nil, 1;
 304                                         end
 305                                         break;
 306                                 end
 307                                 self.session.print(err or "Unknown error loading module");
 308                         else
 309                                 count = count + 1;
 310                                 self.session.print("Loaded for "..mod.module.host);
 311                         end
 312                 end
 313         end
 314
 315         return ok, (ok and "Module loaded onto "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
 316 end
 317
 318 function def_env.module:unload(name, hosts)
 319         local mm = require "modulemanager";
 320
 321         hosts = get_hosts_set(hosts, name);
 322
 323         -- Unload the module for each host
 324         local ok, err, count = true, nil, 0;
 325         for host in hosts do
 326                 if mm.is_loaded(host, name) then
 327                         ok, err = mm.unload(host, name);
 328                         if not ok then
 329                                 ok = false;
 330                                 self.session.print(err or "Unknown error unloading module");
 331                         else
 332                                 count = count + 1;
 333                                 self.session.print("Unloaded from "..host);
 334                         end
 335                 end
 336         end
 337         return ok, (ok and "Module unloaded from "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
 338 end
 339
 340 function def_env.module:reload(name, hosts)
 341         local mm = require "modulemanager";
 342
 343         hosts = array.collect(get_hosts_set(hosts, name)):sort(function (a, b)
 344                 if a == "*" then return true
 345                 elseif b == "*" then return false
 346                 else return a < b; end
 347         end);
 348
 349         -- Reload the module for each host
 350         local ok, err, count = true, nil, 0;
 351         for _, host in ipairs(hosts) do
 352                 if mm.is_loaded(host, name) then
 353                         ok, err = mm.reload(host, name);
 354                         if not ok then
 355                                 ok = false;
 356                                 self.session.print(err or "Unknown error reloading module");
 357                         else
 358                                 count = count + 1;
 359                                 if ok == nil then
 360                                         ok = true;
 361                                 end
 362                                 self.session.print("Reloaded on "..host);
 363                         end
 364                 end
 365         end
 366         return ok, (ok and "Module reloaded on "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));
 367 end
 368
 369 function def_env.module:list(hosts)
 370         if hosts == nil then
 371                 hosts = array.collect(keys(prosody.hosts));
 372                 table.insert(hosts, 1, "*");
 373         end
 374         if type(hosts) == "string" then
 375                 hosts = { hosts };
 376         end
 377         if type(hosts) ~= "table" then
 378                 return false, "Please supply a host or a list of hosts you would like to see";
 379         end
 380
 381         local print = self.session.print;
 382         for _, host in ipairs(hosts) do
 383                 print((host == "*" and "Global" or host)..":");
 384                 local modules = array.collect(keys(modulemanager.get_modules(host) or {})):sort();
 385                 if #modules == 0 then
 386                         if prosody.hosts[host] then
 387                                 print("    No modules loaded");
 388                         else
 389                                 print("    Host not found");
 390                         end
 391                 else
 392                         for _, name in ipairs(modules) do
 393                                 print("    "..name);
 394                         end
 395                 end
 396         end
 397 end
 398
 399 def_env.config = {};
 400 function def_env.config:load(filename, format)
 401         local config_load = require "core.configmanager".load;
 402         local ok, err = config_load(filename, format);
 403         if not ok then
 404                 return false, err or "Unknown error loading config";
 405         end
 406         return true, "Config loaded";
 407 end
 408
 409 function def_env.config:get(host, section, key)
 410         local config_get = require "core.configmanager".get
 411         return true, tostring(config_get(host, section, key));
 412 end
 413
 414 function def_env.config:reload()
 415         local ok, err = prosody.reload_config();
 416         return ok, (ok and "Config reloaded (you may need to reload modules to take effect)") or tostring(err);
 417 end
 418
 419 def_env.hosts = {};
 420 function def_env.hosts:list()
 421         for host, host_session in pairs(hosts) do
 422                 self.session.print(host);
 423         end
 424         return true, "Done";
 425 end
 426
 427 function def_env.hosts:add(name)
 428 end
 429
 430 def_env.c2s = {};
 431
 432 local function show_c2s(callback)
 433         for hostname, host in pairs(hosts) do
 434                 for username, user in pairs(host.sessions or {}) do
 435                         for resource, session in pairs(user.sessions or {}) do
 436                                 local jid = username.."@"..hostname.."/"..resource;
 437                                 callback(jid, session);
 438                         end
 439                 end
 440         end
 441 end
 442
 443 function def_env.c2s:show(match_jid)
 444         local print, count = self.session.print, 0;
 445         local curr_host;
 446         show_c2s(function (jid, session)
 447                 if curr_host ~= session.host then
 448                         curr_host = session.host;
 449                         print(curr_host);
 450                 end
 451                 if (not match_jid) or jid:match(match_jid) then
 452                         count = count + 1;
 453                         local status, priority = "unavailable", tostring(session.priority or "-");
 454                         if session.presence then
 455                                 status = session.presence:child_with_name("show");
 456                                 if status then
 457                                         status = status:get_text() or "[invalid!]";
 458                                 else
 459                                         status = "available";
 460                                 end
 461                         end
 462                         print("   "..jid.." - "..status.."("..priority..")");
 463                 end
 464         end);
 465         return true, "Total: "..count.." clients";
 466 end
 467
 468 function def_env.c2s:show_insecure(match_jid)
 469         local print, count = self.session.print, 0;
 470         show_c2s(function (jid, session)
 471                 if ((not match_jid) or jid:match(match_jid)) and not session.secure then
 472                         count = count + 1;
 473                         print(jid);
 474                 end
 475         end);
 476         return true, "Total: "..count.." insecure client connections";
 477 end
 478
 479 function def_env.c2s:show_secure(match_jid)
 480         local print, count = self.session.print, 0;
 481         show_c2s(function (jid, session)
 482                 if ((not match_jid) or jid:match(match_jid)) and session.secure then
 483                         count = count + 1;
 484                         print(jid);
 485                 end
 486         end);
 487         return true, "Total: "..count.." secure client connections";
 488 end
 489
 490 function def_env.c2s:close(match_jid)
 491         local print, count = self.session.print, 0;
 492         show_c2s(function (jid, session)
 493                 if jid == match_jid or jid_bare(jid) == match_jid then
 494                         count = count + 1;
 495                         session:close();
 496                 end
 497         end);
 498         return true, "Total: "..count.." sessions closed";
 499 end
 500
 501 def_env.s2s = {};
 502 function def_env.s2s:show(match_jid)
 503         local _print = self.session.print;
 504         local print = self.session.print;
 505
 506         local count_in, count_out = 0,0;
 507
 508         for host, host_session in pairs(hosts) do
 509                 print = function (...) _print(host); _print(...); print = _print; end
 510                 for remotehost, session in pairs(host_session.s2sout) do
 511                         if (not match_jid) or remotehost:match(match_jid) or host:match(match_jid) then
 512                                 count_out = count_out + 1;
 513                                 print("    "..host.." -> "..remotehost..(session.cert_identity_status == "valid" and " (secure)" or "")..(session.secure and " (encrypted)" or "")..(session.compressed and " (compressed)" or ""));
 514                                 if session.sendq then
 515                                         print("        There are "..#session.sendq.." queued outgoing stanzas for this connection");
 516                                 end
 517                                 if session.type == "s2sout_unauthed" then
 518                                         if session.connecting then
 519                                                 print("        Connection not yet established");
 520                                                 if not session.srv_hosts then
 521                                                         if not session.conn then
 522                                                                 print("        We do not yet have a DNS answer for this host's SRV records");
 523                                                         else
 524                                                                 print("        This host has no SRV records, using A record instead");
 525                                                         end
 526                                                 elseif session.srv_choice then
 527                                                         print("        We are on SRV record "..session.srv_choice.." of "..#session.srv_hosts);
 528                                                         local srv_choice = session.srv_hosts[session.srv_choice];
 529                                                         print("        Using "..(srv_choice.target or ".")..":"..(srv_choice.port or 5269));
 530                                                 end
 531                                         elseif session.notopen then
 532                                                 print("        The <stream> has not yet been opened");
 533                                         elseif not session.dialback_key then
 534                                                 print("        Dialback has not been initiated yet");
 535                                         elseif session.dialback_key then
 536                                                 print("        Dialback has been requested, but no result received");
 537                                         end
 538                                 end
 539                         end
 540                 end
 541                 local subhost_filter = function (h)
 542                                 return (match_jid and h:match(match_jid));
 543                         end
 544                 for session in pairs(incoming_s2s) do
 545                         if session.to_host == host and ((not match_jid) or host:match(match_jid)
 546                                 or (session.from_host and session.from_host:match(match_jid))
 547                                 -- Pft! is what I say to list comprehensions
 548                                 or (session.hosts and #array.collect(keys(session.hosts)):filter(subhost_filter)>0)) then
 549                                 count_in = count_in + 1;
 550                                 print("    "..host.." <- "..(session.from_host or "(unknown)")..(session.cert_identity_status == "valid" and " (secure)" or "")..(session.secure and " (encrypted)" or "")..(session.compressed and " (compressed)" or ""));
 551                                 if session.type == "s2sin_unauthed" then
 552                                                 print("        Connection not yet authenticated");
 553                                 end
 554                                 for name in pairs(session.hosts) do
 555                                         if name ~= session.from_host then
 556                                                 print("        also hosts "..tostring(name));
 557                                         end
 558                                 end
 559                         end
 560                 end
 561
 562                 print = _print;
 563         end
 564
 565         for session in pairs(incoming_s2s) do
 566                 if not session.to_host and ((not match_jid) or session.from_host and session.from_host:match(match_jid)) then
 567                         count_in = count_in + 1;
 568                         print("Other incoming s2s connections");
 569                         print("    (unknown) <- "..(session.from_host or "(unknown)"));
 570                 end
 571         end
 572
 573         return true, "Total: "..count_out.." outgoing, "..count_in.." incoming connections";
 574 end
 575
 576 local function print_subject(print, subject)
 577         for _, entry in ipairs(subject) do
 578                 print(
 579                         ("    %s: %q"):format(
 580                                 entry.name or entry.oid,
 581                                 entry.value:gsub("[\r\n%z%c]", " ")
 582                         )
 583                 );
 584         end
 585 end
 586
 587 -- As much as it pains me to use the 0-based depths that OpenSSL does,
 588 -- I think there's going to be more confusion among operators if we
 589 -- break from that.
 590 local function print_errors(print, errors)
 591         for depth, t in ipairs(errors) do
 592                 print(
 593                         ("    %d: %s"):format(
 594                                 depth-1,
 595                                 table.concat(t, "\n|        ")
 596                         )
 597                 );
 598         end
 599 end
 600
 601 function def_env.s2s:showcert(domain)
 602         local ser = require "util.serialization".serialize;
 603         local print = self.session.print;
 604         local domain_sessions = set.new(array.collect(keys(incoming_s2s)))
 605                 /function(session) return session.from_host == domain; end;
 606         for local_host in values(prosody.hosts) do
 607                 local s2sout = local_host.s2sout;
 608                 if s2sout and s2sout[domain] then
 609                         domain_sessions:add(s2sout[domain]);
 610                 end
 611         end
 612         local cert_set = {};
 613         for session in domain_sessions do
 614                 local conn = session.conn;
 615                 conn = conn and conn:socket();
 616                 if not conn.getpeerchain then
 617                         if conn.dohandshake then
 618                                 error("This version of LuaSec does not support certificate viewing");
 619                         end
 620                 else
 621                         local certs = conn:getpeerchain();
 622                         local cert = certs[1];
 623                         if cert then
 624                                 local digest = cert:digest("sha1");
 625                                 if not cert_set[digest] then
 626                                         local chain_valid, chain_errors = conn:getpeerverification();
 627                                         cert_set[digest] = {
 628                                                 {
 629                                                   from = session.from_host,
 630                                                   to = session.to_host,
 631                                                   direction = session.direction
 632                                                 };
 633                                                 chain_valid = chain_valid;
 634                                                 chain_errors = chain_errors;
 635                                                 certs = certs;
 636                                         };
 637                                 else
 638                                         table.insert(cert_set[digest], {
 639                                                 from = session.from_host,
 640                                                 to = session.to_host,
 641                                                 direction = session.direction
 642                                         });
 643                                 end
 644                         end
 645                 end
 646         end
 647         local domain_certs = array.collect(values(cert_set));
 648         -- Phew. We now have a array of unique certificates presented by domain.
 649         local print = self.session.print;
 650         local n_certs = #domain_certs;
 651
 652         if n_certs == 0 then
 653                 return "No certificates found for "..domain;
 654         end
 655
 656         local function _capitalize_and_colon(byte)
 657                 return string.upper(byte)..":";
 658         end
 659         local function pretty_fingerprint(hash)
 660                 return hash:gsub("..", _capitalize_and_colon):sub(1, -2);
 661         end
 662
 663         for cert_info in values(domain_certs) do
 664                 local certs = cert_info.certs;
 665                 local cert = certs[1];
 666                 print("---")
 667                 print("Fingerprint (SHA1): "..pretty_fingerprint(cert:digest("sha1")));
 668                 print("");
 669                 local n_streams = #cert_info;
 670                 print("Currently used on "..n_streams.." stream"..(n_streams==1 and "" or "s")..":");
 671                 for _, stream in ipairs(cert_info) do
 672                         if stream.direction == "incoming" then
 673                                 print("    "..stream.to.." <- "..stream.from);
 674                         else
 675                                 print("    "..stream.from.." -> "..stream.to);
 676                         end
 677                 end
 678                 print("");
 679                 local chain_valid, errors = cert_info.chain_valid, cert_info.chain_errors;
 680                 local valid_identity = cert_verify_identity(domain, "xmpp-server", cert);
 681                 if chain_valid then
 682                         print("Trusted certificate: Yes");
 683                 else
 684                         print("Trusted certificate: No");
 685                         print_errors(print, errors);
 686                 end
 687                 print("");
 688                 print("Issuer: ");
 689                 print_subject(print, cert:issuer());
 690                 print("");
 691                 print("Valid for "..domain..": "..(valid_identity and "Yes" or "No"));
 692                 print("Subject:");
 693                 print_subject(print, cert:subject());
 694         end
 695         print("---");
 696         return ("Showing "..n_certs.." certificate"
 697                 ..(n_certs==1 and "" or "s")
 698                 .." presented by "..domain..".");
 699 end
 700
 701 function def_env.s2s:close(from, to)
 702         local print, count = self.session.print, 0;
 703
 704         if not (from and to) then
 705                 return false, "Syntax: s2s:close('from', 'to') - Closes all s2s sessions from 'from' to 'to'";
 706         elseif from == to then
 707                 return false, "Both from and to are the same... you can't do that :)";
 708         end
 709
 710         if hosts[from] and not hosts[to] then
 711                 -- Is an outgoing connection
 712                 local session = hosts[from].s2sout[to];
 713                 if not session then
 714                         print("No outgoing connection from "..from.." to "..to)
 715                 else
 716                         (session.close or s2smanager.destroy_session)(session);
 717                         count = count + 1;
 718                         print("Closed outgoing session from "..from.." to "..to);
 719                 end
 720         elseif hosts[to] and not hosts[from] then
 721                 -- Is an incoming connection
 722                 for session in pairs(incoming_s2s) do
 723                         if session.to_host == to and session.from_host == from then
 724                                 (session.close or s2smanager.destroy_session)(session);
 725                                 count = count + 1;
 726                         end
 727                 end
 728
 729                 if count == 0 then
 730                         print("No incoming connections from "..from.." to "..to);
 731                 else
 732                         print("Closed "..count.." incoming session"..((count == 1 and "") or "s").." from "..from.." to "..to);
 733                 end
 734         elseif hosts[to] and hosts[from] then
 735                 return false, "Both of the hostnames you specified are local, there are no s2s sessions to close";
 736         else
 737                 return false, "Neither of the hostnames you specified are being used on this server";
 738         end
 739
 740         return true, "Closed "..count.." s2s session"..((count == 1 and "") or "s");
 741 end
 742
 743 def_env.host = {}; def_env.hosts = def_env.host;
 744
 745 function def_env.host:activate(hostname, config)
 746         return hostmanager.activate(hostname, config);
 747 end
 748 function def_env.host:deactivate(hostname, reason)
 749         return hostmanager.deactivate(hostname, reason);
 750 end
 751
 752 function def_env.host:list()
 753         local print = self.session.print;
 754         local i = 0;
 755         for host in values(array.collect(keys(prosody.hosts)):sort()) do
 756                 i = i + 1;
 757                 print(host);
 758         end
 759         return true, i.." hosts";
 760 end
 761
 762 -------------
 763
 764 function printbanner(session)
 765         local option = config.get("*", "core", "console_banner");
 766 if option == nil or option == "full" or option == "graphic" then
 767 session.print [[
 768                    ____                \   /     _
 769                     |  _ \ _ __ ___  ___  _-_   __| |_   _
 770                     | |_) | '__/ _ \/ __|/ _ \ / _` | | | |
 771                     |  __/| | | (_) \__ \ |_| | (_| | |_| |
 772                     |_|   |_|  \___/|___/\___/ \__,_|\__, |
 773                     A study in simplicity            |___/
 774
 775 ]]
 776 end
 777 if option == nil or option == "short" or option == "full" then
 778 session.print("Welcome to the Prosody administration console. For a list of commands, type: help");
 779 session.print("You may find more help on using this console in our online documentation at ");
 780 session.print("http://prosody.im/doc/console\n");
 781 end
 782 if option and option ~= "short" and option ~= "full" and option ~= "graphic" then
 783         if type(option) == "string" then
 784                 session.print(option)
 785         elseif type(option) == "function" then
 786                 setfenv(option, redirect_output(_G, session));
 787                 pcall(option, session);
 788         end
 789 end
 790 end
 791
 792 require "core.portmanager".register_service("console", {
 793         listener = console_listener;
 794         default_port = 5582;
 795         private = true;
 796 });