#include "ShellExecPlugin.h"
#include "ISmsTransceiver.h"
#include "Sms.h"

#include "Util.h"
#include "ConfigFile.h"

#include <stdexcept>

ShellExecPlugin::ShellExecPlugin(std::map<std::string,std::string> args)
		: Plugin("", "")
{
	_command = args["trigger"];
	_exeCommand = args["cmd"];
	_description = std::string("ShellExec: ")+_exeCommand;
	std::string allowParms = args["allowparms"];
	std::string returnOutput = args["returnoutput"];

	if (_command == "" || _exeCommand == "" || allowParms == "" || returnOutput == "")
		throw std::runtime_error("Usage: plugin = shellexec trigger=<trigger>; cmd=<command>; allowparms=<0|1>; returnoutput=<0|1>");


	_allowParameters = ( ConfigHelper::StringToInt(allowParms) == 1);
	_returnOutput = ( ConfigHelper::StringToInt(returnOutput) == 1);
}

void ShellExecPlugin::Execute(ISmsTransceiver& modem, SMS& sms)
{
	std::string command = _exeCommand;

	if (_allowParameters)
	{
		std::string parameters = sms.ExtractParameters();

		parameters = Util::str_replace(parameters, "||");
		parameters = Util::str_replace(parameters, "&&");
		parameters = Util::str_replace(parameters, ";");
		parameters = Util::str_replace(parameters, "'");
		parameters = Util::str_replace(parameters, "\"");

		command += " ";
		command	+= parameters;
	}
	std::string output;
	std::string* out_p = 0;

	if (_returnOutput)
		out_p = &output;

	int retval = Util::my_system( command.c_str(), out_p );

	std::string message;
	if (retval == -1)
		message = "Error";
	else
	{
		if (_returnOutput)
			message = output;
		else
			message = "OK";
	}

	modem.SendSms(sms.GetSender(), message, false );
}