-- Prosody IM v0.4

-- Copyright (C) 2008-2009 Matthew Wild

-- Copyright (C) 2008-2009 Waqas Hussain

-- 

-- This project is MIT/X11 licensed. Please see the

-- COPYING file in the source package for more information.

--

module.host = "*";

local prosody = _G.prosody;

local hosts = prosody.hosts;

local connlisteners_register = require "net.connlisteners".register;

local console_listener = { default_port = 5582; default_mode = "*l"; };

require "util.iterators";

local set, array = require "util.set", require "util.array";

local commands = {};

local def_env = {};

local default_env_mt = { __index = def_env };

console = {};

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;

			disconnect = function () conn.close(); end;

			};

	session.env = setmetatable({}, default_env_mt);

	-- Load up environment with helper objects

	for name, t in pairs(def_env) do

		if type(t) == "table" then

			session.env[name] = setmetatable({ session = session }, { __index = t });

		end

	end

	return session;

end

local sessions = {};

function console_listener.listener(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)

			if data:match("[!.]$") then

				local command = data:lower();

				command = data:match("^%w+") or data:match("%p");

				if commands[command] then

					commands[command](session, data);

					return;

				end

			end

			session.env._ = data;

			local chunk, err = loadstring("return "..data);

			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, session.env);

			local ranok, taskok, message = pcall(chunk);

			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);

	end

	session.send(string.char(0));

end

function console_listener.disconnect(conn, err)

end

connlisteners_register('console', console_listener);

-- Console commands --

-- These are simple commands, not valid standalone in Lua

function commands.bye(session)

	session.print("See you! :)");

	session.disconnect();

end

commands["!"] = function (session, data)

	if data:match("^!!") then

		session.print("!> "..session.env._);

		return console_listener.listener(session.conn, session.env._);

	end

	local old, new = data:match("^!(.-[^\\])!(.-)!$");

	if old and new then

		local ok, res = pcall(string.gsub, session.env._, old, new);

		if not ok then

			session.print(res)

			return;

		end

		session.print("!> "..res);

		return console_listener.listener(session.conn, res);

	end

	session.print("Sorry, not sure what you want");

end

-- Session environment --

-- Anything in def_env will be accessible within the session as a global variable

def_env.server = {};

function def_env.server:reload()

	dofile "prosody"

	return true, "Server reloaded";

end

def_env.module = {};

local function get_hosts_set(hosts)

	if type(hosts) == "table" then

		if hosts[1] then

			return set.new(hosts);

		elseif hosts._items then

			return hosts;

		end

	elseif type(hosts) == "string" then

		return set.new { hosts };

	elseif hosts == nil then

		return set.new(array.collect(keys(prosody.hosts)))

			/ function (host) return prosody.hosts[host].type == "local"; end;

	end

end

function def_env.module:load(name, hosts, config)

	local mm = require "modulemanager";

	hosts = get_hosts_set(hosts);

	-- Load the module for each host

	local ok, err, count = true, nil, 0;

	for host in hosts do

		if (not mm.is_loaded(host, name)) then

			ok, err = mm.load(host, name, config);

			if not ok then

				ok = false;

				self.session.print(err or "Unknown error loading module");

			else

				count = count + 1;

				self.session.print("Loaded for "..host);

			end

		end

	end

	return ok, (ok and "Module loaded onto "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));	

end

function def_env.module:unload(name, hosts)

	local mm = require "modulemanager";

	hosts = get_hosts_set(hosts);

	-- Unload the module for each host

	local ok, err, count = true, nil, 0;

	for host in hosts do

		if mm.is_loaded(host, name) then

			ok, err = mm.unload(host, name);

			if not ok then

				ok = false;

				self.session.print(err or "Unknown error unloading module");

			else

				count = count + 1;

				self.session.print("Unloaded from "..host);

			end

		end

	end

	return ok, (ok and "Module unloaded from "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));

end

function def_env.module:reload(name, hosts)

	local mm = require "modulemanager";

	hosts = get_hosts_set(hosts);

	-- Reload the module for each host

	local ok, err, count = true, nil, 0;

	for host in hosts do

		if mm.is_loaded(host, name) then

			ok, err = mm.reload(host, name);

			if not ok then

				ok = false;

				self.session.print(err or "Unknown error reloading module");

			else

				count = count + 1;

				if ok == nil then

					ok = true;

				end

				self.session.print("Reloaded on "..host);

			end

		end

	end

	return ok, (ok and "Module reloaded on "..count.." host"..(count ~= 1 and "s" or "")) or ("Last error: "..tostring(err));

end

def_env.config = {};

function def_env.config:load(filename, format)

	local config_load = require "core.configmanager".load;

	local ok, err = config_load(filename, format);

	if not ok then

		return false, err or "Unknown error loading config";

	end

	return true, "Config loaded";

end

function def_env.config:get(host, section, key)

	local config_get = require "core.configmanager".get

	return true, tostring(config_get(host, section, key));

end

def_env.hosts = {};

function def_env.hosts:list()

	for host, host_session in pairs(hosts) do

		self.session.print(host);

	end

	return true, "Done";

end

function def_env.hosts:add(name)

end

def_env.c2s = {};

local function show_c2s(callback)

	for hostname, host in pairs(hosts) do

		for username, user in pairs(host.sessions or {}) do

			for resource, session in pairs(user.sessions or {}) do

				local jid = username.."@"..hostname.."/"..resource;

				callback(jid, session);

			end

		end

	end

end

function def_env.c2s:show(match_jid)

	local print, count = self.session.print, 0;

	show_c2s(function (jid)

		if (not match_jid) or jid:match(match_jid) then

			count = count + 1;

			print(jid);

		end		

	end);

	return true, "Total: "..count.." clients";

end

function def_env.c2s:show_insecure(match_jid)

	local print, count = self.session.print, 0;

	show_c2s(function (jid, session)

		if ((not match_jid) or jid:match(match_jid)) and not session.secure then

			count = count + 1;

			print(jid);

		end		

	end);

	return true, "Total: "..count.." insecure client connections";

end

function def_env.c2s:show_secure(match_jid)

	local print, count = self.session.print, 0;

	show_c2s(function (jid, session)

		if ((not match_jid) or jid:match(match_jid)) and session.secure then

			count = count + 1;

			print(jid);

		end		

	end);

	return true, "Total: "..count.." secure client connections";

end

def_env.s2s = {};

function def_env.s2s:show(match_jid)

	local _print = self.session.print;

	local print = self.session.print;

	for host, host_session in pairs(hosts) do

		print = function (...) _print(host); _print(...); print = _print; end

		for remotehost, session in pairs(host_session.s2sout) do

			if (not match_jid) or remotehost:match(match_jid) or host:match(match_jid) then

				print("    "..host.." -> "..remotehost);

				if session.sendq then

					print("        There are "..#session.sendq.." queued outgoing stanzas for this connection");

				end

				if session.type == "s2sout_unauthed" then

					if session.connecting then

						print("        Connection not yet established");

						if not session.srv_hosts then

							if not session.conn then

								print("        We do not yet have a DNS answer for this host's SRV records");

							else

								print("        This host has no SRV records, using A record instead");

							end

						elseif session.srv_choice then

							print("        We are on SRV record "..session.srv_choice.." of "..#session.srv_hosts);

							local srv_choice = session.srv_hosts[session.srv_choice];

							print("        Using "..(srv_choice.target or ".")..":"..(srv_choice.port or 5269));

						end

					elseif session.notopen then

						print("        The <stream> has not yet been opened");

					elseif not session.dialback_key then

						print("        Dialback has not been initiated yet");

					elseif session.dialback_key then

						print("        Dialback has been requested, but no result received");

					end

				end

			end

		end	

		for session in pairs(incoming_s2s) do

			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))) then

				print("    "..host.." <- "..(session.from_host or "(unknown)"));

				if session.type == "s2sin_unauthed" then

						print("        Connection not yet authenticated");

				end

				for name in pairs(session.hosts) do

					if name ~= session.from_host then

						print("        also hosts "..tostring(name));

					end

				end

			end

		end

		print = _print;

	end

	for session in pairs(incoming_s2s) do

		if not session.to_host and ((not match_jid) or session.from_host and session.from_host:match(match_jid)) then

			print("Other incoming s2s connections");

			print("    (unknown) <- "..(session.from_host or "(unknown)"));