mod_console: Removed redundant code for host:activate() and host:deactivate(), now...
[prosody.git] / plugins / mod_console.lua
index 8f574704c2fdd82dd88d815dc2b6acb3d0e07056..0b2dd5f8914224b4389f3a8d69ac94330572c73f 100644 (file)
@@ -19,6 +19,7 @@ local console_listener = { default_port = 5582; default_mode = "*l"; default_int
 require "util.iterators";
 local jid_bare = require "util.jid".bare;
 local set, array = require "util.set", require "util.array";
+local cert_verify_identity = require "util.certverification".verify_identity;
 
 local commands = {};
 local def_env = {};
@@ -27,7 +28,13 @@ local default_env_mt = { __index = def_env };
 prosody.console = { commands = commands, env = def_env };
 
 local function redirect_output(_G, session)
-       return setmetatable({ print = session.print }, { __index = function (t, k) return rawget(_G, k); end, __newindex = function (t, k, v) rawset(_G, k, v); end });
+       local env = setmetatable({ print = session.print }, { __index = function (t, k) return rawget(_G, k); end });
+       env.dofile = function(name)
+               local f, err = loadfile(name);
+               if not f then return f, err; end
+               return setfenv(f, env)();
+       end;
+       return env;
 end
 
 console = {};
@@ -36,7 +43,13 @@ 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;
-                       print = function (t) w("| "..tostring(t).."\n"); end;
+                       print = function (...)
+                               local t = {};
+                               for i=1,select("#", ...) do
+                                       t[i] = tostring(select(i, ...));
+                               end
+                               w("| "..table.concat(t, "\t").."\n");
+                       end;
                        disconnect = function () conn:close(); end;
                        };
        session.env = setmetatable({}, default_env_mt);
@@ -53,76 +66,78 @@ end
 
 local sessions = {};
 
+function console_listener.onconnect(conn)
+       -- Handle new connection
+       local session = console:new_session(conn);
+       sessions[conn] = session;
+       printbanner(session);
+       session.send(string.char(0));
+end
+
 function console_listener.onincoming(conn, data)
        local session = sessions[conn];
-       
-       if not session then
-               -- Handle new connection
-               session = console:new_session(conn);
-               sessions[conn] = session;
-               printbanner(session);
-       end
-       if data then
-               -- Handle data
-               (function(session, data)
-                       local useglobalenv;
-                       
-                       if data:match("^>") then
-                               data = data:gsub("^>", "");
-                               useglobalenv = true;
-                       elseif data == "\004" then
-                               commands["bye"](session, data);
+
+       -- Handle data
+       (function(session, data)
+               local useglobalenv;
+               
+               if data:match("^>") then
+                       data = data:gsub("^>", "");
+                       useglobalenv = true;
+               elseif data == "\004" then
+                       commands["bye"](session, data);
+                       return;
+               else
+                       local command = data:lower();
+                       command = data:match("^%w+") or data:match("%p");
+                       if commands[command] then
+                               commands[command](session, data);
                                return;
-                       else
-                               local command = data:lower();
-                               command = data:match("^%w+") or data:match("%p");
-                               if commands[command] then
-                                       commands[command](session, data);
-                                       return;
-                               end
                        end
+               end
 
-                       session.env._ = data;
-                       
-                       local chunk, err = loadstring("return "..data);
+               session.env._ = data;
+               
+               local chunkname = "=console";
+               local chunk, err = loadstring("return "..data, chunkname);
+               if not chunk then
+                       chunk, err = loadstring(data, chunkname);
                        if not chunk then
-                               chunk, err = loadstring(data);
-                               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
-                       
-                       setfenv(chunk, (useglobalenv and redirect_output(_G, session)) or session.env or nil);
-                       
-                       local ranok, taskok, message = pcall(chunk);
-                       
-                       if not (ranok or message or useglobalenv) and commands[data:lower()] then
-                               commands[data:lower()](session, data);
-                               return;
-                       end
-                       
-                       if not ranok then
-                               session.print("Fatal error while running command, it did not complete");
-                               session.print("Error: "..taskok);
+                               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
-                       
-                       if not message then
-                               session.print("Result: "..tostring(taskok));
-                               return;
-                       elseif (not taskok) and message then
-                               session.print("Command completed with a problem");
-                               session.print("Message: "..tostring(message));
-                               return;
-                       end
-                       
-                       session.print("OK: "..tostring(message));
-               end)(session, data);
-       end
+               end
+               
+               setfenv(chunk, (useglobalenv and redirect_output(_G, session)) or session.env or nil);
+               
+               local ranok, taskok, message = pcall(chunk);
+               
+               if not (ranok or message or useglobalenv) and commands[data:lower()] then
+                       commands[data:lower()](session, data);
+                       return;
+               end
+               
+               if not ranok then
+                       session.print("Fatal error while running command, it did not complete");
+                       session.print("Error: "..taskok);
+                       return;
+               end
+               
+               if not message then
+                       session.print("Result: "..tostring(taskok));
+                       return;
+               elseif (not taskok) and message then
+                       session.print("Command completed with a problem");
+                       session.print("Message: "..tostring(message));
+                       return;
+               end
+               
+               session.print("OK: "..tostring(message));
+       end)(session, data);
+       
        session.send(string.char(0));
 end
 
@@ -146,7 +161,7 @@ end
 commands.quit, commands.exit = commands.bye, commands.bye;
 
 commands["!"] = function (session, data)
-       if data:match("^!!") then
+       if data:match("^!!") and session.env._ then
                session.print("!> "..session.env._);
                return console_listener.onincoming(session.conn, session.env._);
        end
@@ -163,6 +178,7 @@ commands["!"] = function (session, data)
        session.print("Sorry, not sure what you want");
 end
 
+
 function commands.help(session, data)
        local print = session.print;
        local section = data:match("^help (%w+)");
@@ -173,6 +189,7 @@ function commands.help(session, data)
                print [[c2s - Commands to manage local client-to-server sessions]]
                print [[s2s - Commands to manage sessions between this server and others]]
                print [[module - Commands to load/reload/unload modules/plugins]]
+               print [[host - Commands to activate, deactivate and list virtual hosts]]
                print [[server - Uptime, version, shutting down, etc.]]
                print [[config - Reloading the configuration, etc.]]
                print [[console - Help regarding the console itself]]
@@ -189,6 +206,10 @@ function commands.help(session, data)
                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 == "server" then
                print [[server:version() - Show the server's version number]]
                print [[server:uptime() - Show how long the server has been running]]
@@ -237,8 +258,8 @@ function def_env.server:uptime()
        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 "", 
+       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
 
@@ -478,7 +499,7 @@ function def_env.s2s:show(match_jid)
                for remotehost, session in pairs(host_session.s2sout) do
                        if (not match_jid) or remotehost:match(match_jid) or host:match(match_jid) then
                                count_out = count_out + 1;
-                               print("    "..host.." -> "..remotehost..(session.secure and " (encrypted)" or "")..(session.compressed and " (compressed)" or ""));
+                               print("    "..host.." -> "..remotehost..(session.cert_identity_status == "valid" and " (secure)" or "")..(session.secure and " (encrypted)" or "")..(session.compressed and " (compressed)" or ""));
                                if session.sendq then
                                        print("        There are "..#session.sendq.." queued outgoing stanzas for this connection");
                                end
@@ -506,16 +527,16 @@ function def_env.s2s:show(match_jid)
                                end
                        end
                end     
-               local subhost_filter = function (h) 
+               local subhost_filter = function (h)
                                return (match_jid and h:match(match_jid));
                        end
                for session in pairs(incoming_s2s) do
-                       if session.to_host == host and ((not match_jid) or host:match(match_jid) 
+                       if session.to_host == host and ((not match_jid) or host:match(match_jid)
                                or (session.from_host and session.from_host:match(match_jid))
                                -- Pft! is what I say to list comprehensions
                                or (session.hosts and #array.collect(keys(session.hosts)):filter(subhost_filter)>0)) then
                                count_in = count_in + 1;
-                               print("    "..host.." <- "..(session.from_host or "(unknown)")..(session.secure and " (encrypted)" or "")..(session.compressed and " (compressed)" or ""));
+                               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 ""));
                                if session.type == "s2sin_unauthed" then
                                                print("        Connection not yet authenticated");
                                end
@@ -541,6 +562,109 @@ function def_env.s2s:show(match_jid)
        return true, "Total: "..count_out.." outgoing, "..count_in.." incoming connections";
 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
+
+function def_env.s2s:showcert(domain)
+       local ser = require "util.serialization".serialize;
+       local print = self.session.print;
+       local domain_sessions = set.new(array.collect(keys(incoming_s2s)))
+               /function(session) return session.from_host == domain; end;
+       for local_host in values(prosody.hosts) do
+               local s2sout = local_host.s2sout;
+               if s2sout and s2sout[domain] then
+                       domain_sessions:add(s2sout[domain]);
+               end
+       end
+       local cert_set = {};
+       for session in domain_sessions do
+               local conn = session.conn;
+               conn = conn and conn:socket();
+               if not conn.getpeercertificate 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 digest = cert:digest("sha1");
+                               if not cert_set[digest] then
+                                       local chain_valid, chain_err = conn:getpeerchainvalid();
+                                       cert_set[digest] = {
+                                               {
+                                                 from = session.from_host,
+                                                 to = session.to_host,
+                                                 direction = session.direction
+                                               };
+                                               chain_valid = chain_valid;
+                                               chain_err = chain_err;
+                                               cert = cert;
+                                       };
+                               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 print = self.session.print;
+       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 cert = cert_info.cert;
+               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, err = cert_info.chain_valid, cert_info.chain_err;
+               local valid_identity = cert_verify_identity(domain, "xmpp-server", cert);
+               print("Trusted certificate: "..(chain_valid and "Yes" or ("No ("..err..")")));
+               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)
        local print, count = self.session.print, 0;
        
@@ -553,7 +677,7 @@ function def_env.s2s:close(from, to)
        if hosts[from] and not hosts[to] then
                -- Is an outgoing connection
                local session = hosts[from].s2sout[to];
-               if not session then 
+               if not session then
                        print("No outgoing connection from "..from.." to "..to)
                else
                        (session.close or s2smanager.destroy_session)(session);
@@ -584,31 +708,12 @@ function def_env.s2s:close(from, to)
 end
 
 def_env.host = {}; def_env.hosts = def_env.host;
+
 function def_env.host:activate(hostname, config)
-       local hostmanager_activate = require "core.hostmanager".activate;
-       if hosts[hostname] then
-               return false, "The host "..tostring(hostname).." is already activated";
-       end
-       
-       local defined_hosts = config or configmanager.getconfig();
-       if not config and not defined_hosts[hostname] then
-               return false, "Couldn't find "..tostring(hostname).." defined in the config, perhaps you need to config:reload()?";
-       end
-       hostmanager_activate(hostname, config or defined_hosts[hostname]);
-       return true, "Host "..tostring(hostname).." activated";
+       return hostmanager.activate(hostname, config);
 end
-
 function def_env.host:deactivate(hostname, reason)
-       local hostmanager_deactivate = require "core.hostmanager".deactivate;
-       local host = hosts[hostname];
-       if not host then
-               return false, "The host "..tostring(hostname).." is not activated";
-       end
-       if reason then
-               reason = { condition = "host-gone", text = reason };
-       end
-       hostmanager_deactivate(hostname, reason);
-       return true, "Host "..tostring(hostname).." deactivated";
+       return hostmanager.deactivate(hostname, reason);
 end
 
 function def_env.host:list()