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-- shorewall model methods
module (..., package.seeall)
require("format")

local baseurl = "/etc/shorewall/"

local function file_info ( path )
	require("posix")
	local filedetails = posix.stat(path)	
	filedetails["owner"]=rawget((posix.getpasswd(filedetails["uid"])),"name")
	filedetails["group"]=rawget((posix.getgroup(filedetails["gid"])),"name")
	filedetails["atimelong"]=os.date("%c", filedetails["atime"])
	filedetails["mtimelong"]=os.date("%c", filedetails["mtime"])
	filedetails["longname"]=path
	filedetails["name"]=basename(path)
	filedetails["size"]=filedetails["size"] .. " bytes"
	return filedetails
end

-- ################################################################################
-- PUBLIC FUNCTIONS

function check_config ()
	check = nil
	check = {}
	local f,err = io.popen("/bin/echo -n '>> Check starts at: ';/bin/date; /bin/echo; /etc/init.d/shorewall check; /bin/echo; /bin/echo -n '>> Check stops at: '; /bin/date;")
	check.result = f:read("*a")
	f:close()
	check["error"]=err
	return check
end

function restart_service ()
	-- FIXME: Read getstatus AFTER restart so the new 'restart date' is shown.
	local status = get_status()
	local f,err = io.popen("/etc/init.d/shorewall restart")
	status.restart = f:read("*a")
	f:close()
	return status
end

function get_status ()
	local f,error = io.popen("/sbin/shorewall status")
	local fake = f:read("*l")
	local fake = f:read("*l")
	local programstatus = f:read("*l")
	local programstate = f:read("*l")
	f:close()
	local f,error = io.popen("/sbin/shorewall version")
	local programversion = f:read("*l")
	f:close()
	return {programversion=programversion,programstatus=programstatus,programstate=programstate}
end


function get_filelist ()
	local filepath = baseurl
	local listed_files = {}
	local k,v
	for name in posix.files(filepath) do
		if not string.match(name, "^%.") and not string.match(name, "^Makefile") then
			local filedetails = file_info(filepath .. name)
			table.insert ( listed_files , {name=name, longname=filepath .. name, filedetails=filedetails} )
		end
	end
	table.sort(listed_files, function (a,b) return (a.name < b.name) end )
	return listed_files
end

function get_filecontent (self, name)
	local path = baseurl .. name
	file_content = nil
	local available_files = get_filelist()
	for k,v in pairs(available_files) do
		if ( available_files[k].name == name ) then
			local file = io.open( path )
			local file_result = file:read("*a") or "unknown"
			file:close()
			local filedetails = file_info(path)
			file_content = cfe{name=name, value=file_result, filedetails=filedetails}
		end
	end
	return file_content
end

function update_filecontent (self, name, modifications)
	path = baseurl .. name
	local available_files = get_filelist()
	for k,v in pairs(available_files) do
		if ( available_files[k].name == name ) then
			local file = io.open( path, "w+" )
			local file_result,err = file:write(format.dostounix(modifications))
			file:close()
			if (err ~= nil) then
				local filedetails = file_info(path)
				file_content = {name=name, value=file_result, filedetails=filedetails, err=err}
			end
		end
	end
	return file_content
end