#!/usr/bin/env lua
-- Prosody IM v0.2
-- Copyright (C) 2008 Matthew Wild
-- Copyright (C) 2008 Waqas Hussain
-- 
-- This program is free software; you can redistribute it and/or
-- modify it under the terms of the GNU General Public License
-- as published by the Free Software Foundation; either version 2
-- of the License, or (at your option) any later version.
-- 
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-- GNU General Public License for more details.
-- 
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
--

-- Config here --

CFG_SOURCEDIR=nil;
CFG_CONFIGDIR=os.getenv("PROSODY_CFGDIR");
CFG_PLUGINDIR=nil;
CFG_DATADIR=os.getenv("PROSODY_DATADIR");

-- -- -- -- -- --

if CFG_SOURCEDIR then
	package.path = CFG_SOURCEDIR.."/?.lua;"..package.path
	package.cpath = CFG_SOURCEDIR.."/?.so;"..package.cpath
end

if CFG_DATADIR then
	if os.getenv("HOME") then
		CFG_DATADIR = CFG_DATADIR:gsub("^~", os.getenv("HOME"));
	end
end

-- Required to be able to find packages installed with luarocks
pcall(require, "luarocks.require")


config = require "core.configmanager"
log = require "util.logger".init("general");

-- Disable log output, needs to read from config
-- require "util.logger".setwriter(function () end);

do
	-- TODO: Check for other formats when we add support for them
	-- Use lfs? Make a new conf/ dir?
	local ok, err = config.load((CFG_CONFIGDIR or ".").."/prosody.cfg.lua");
	if not ok then
		log("error", "Couldn't load config file: %s", err);
		log("info", "Falling back to old config file format...")
		ok, err = pcall(dofile, "lxmppd.cfg");
		if not ok then
			log("error", "Old config format loading failed too: %s", err);
		else
			for _, host in ipairs(_G.config.hosts) do
				config.set(host, "core", "defined", true);
			end
			
			config.set("*", "core", "modules_enabled", _G.config.modules);
			config.set("*", "core", "ssl", _G.config.ssl_ctx);
		end
	end
end

local server = require "net.server"

require "util.dependencies"

-- Maps connections to sessions --
sessions = {};
hosts = {};

-- Load and initialise core modules --

require "util.import"
require "core.xmlhandlers"
require "core.rostermanager"
require "core.offlinemessage"
require "core.eventmanager"
require "core.hostmanager"
require "core.modulemanager"
require "core.usermanager"
require "core.sessionmanager"
require "core.stanza_router"

--[[
pcall(require, "remdebug.engine");
if remdebug then remdebug.engine.start() end
]]

local cl = require "net.connlisteners";

require "util.stanza"
require "util.jid"

------------------------------------------------------------------------


------------- Begin code without a home ---------------------

local data_path = config.get("*", "core", "data_path") or CFG_DATADIR or "data";
require "util.datamanager".set_data_path(data_path);

----------- End of out-of-place code --------------

eventmanager.fire_event("server-starting");


-- setup error handling
setmetatable(_G, { __index = function (t, k) error("Attempt to read a non-existent global '"..k.."'", 2); end, __newindex = function (t, k, v) error("Attempt to set a global: "..tostring(k).." = "..tostring(v), 2); end });

local global_ssl_ctx = config.get("*", "core", "ssl");
if global_ssl_ctx then
	local default_ssl_ctx = { mode = "server", protocol = "sslv23", capath = "/etc/ssl/certs", verify = "none"; };
	setmetatable(global_ssl_ctx, { __index = default_ssl_ctx });
end

-- start listening on sockets
local function do_ports(option, listener, default, conntype)
	local ports = config.get("*", "core", option) or default;
	--if type(ports) == "number" then ports = {ports} end;
	
	if type(ports) ~= "table" then
		log("error", "core."..option.." is not a table");
	else
		for _, port in ipairs(ports) do
			if type(port) ~= "number" then
				log("error", "Non-numeric "..option..": "..tostring(port));
			else
				cl.start(listener, { ssl = global_ssl_ctx, port = port, type = conntype });
			end
		end
	end
end

do_ports("c2s_ports", "xmppclient", {5222}, (global_ssl_ctx and "tls") or "tcp");
do_ports("s2s_ports", "xmppserver", {5269}, "tcp");
do_ports("legacy_ssl_ports", "xmppclient", {}, "ssl");

if config.get("*", "core", "console_enabled") then
	if cl.get("console") then
		cl.start("console", { interface = config.get("*", "core", "console_interface") or "127.0.0.1" })
	else
		log("error", "Console is enabled, but the console module appears not to be loaded");
	end
end

eventmanager.fire_event("server-started");

server.loop();