<?
checkSamostatne(basename(__FILE__));
setDebugLevel();

function checkSamostatne($file)
{
  if(basename($_SERVER["PHP_SELF"]) == $file)
  {
//  	session_start();
//  	session_unset();
//  	session_start();
  	goToDefaultPage();
  }
}

function getPrava()
{
  require_once("_dbuser.php");
  if(!isset($_SESSION["IDUser"])) return 1000;
  $user = new DBUser();
  $user->getUserData($_SESSION["IDUser"]);
  if($user->getNextRow())
  {
    return $user->record["opravneni"];
  }
  return 1000;
}

function goToDefaultPage()
{
  Header("Location: http://cestovani.kamdata.com/");
  Exit();
}

function setStrankaNoUser()
{
	if(!isset($_SESSION['stranka']) 																								//default stranka
	   || $_SESSION['stranka']=="editP.php" 																				//vsechny edity
	   || ( $_SESSION['stranka']=="browseP.php" && $_SESSION["IDPrehled"] == 1)     //browse useru
	   )
  {
		$_SESSION['stranka']="index.php";
	}

}

function goToStranka()
{
  if(isset($_SESSION['stranka']))
  {
    Header("Location: " . $_SESSION['stranka']);
    Exit();
  }
  else
  {
  	goToDefaultPage();
  }
}

function getDefKolik()
{
	return 20;
}

function getBrowsePage()
{
	return "browseP.php";
}

function setDebugLevel()
{
	error_reporting (E_ALL & E_NOTICE);
}

function getQuerryType($string)
{
    if (StrStr($string,"select"))
    {
        return 10;
    }
    if (StrStr($string,"insert"))
    {
        return 20;
    }
    if (StrStr($string,"update"))
    {
        return 30;
    }
    if (StrStr($string,"delete"))
    {
        return 40;
    }
}

function is_string_valid($string)
{
	$string=Trim($string);
	return $string;
}

function is_login_valid($string)		//string bez mezer, min 5 znaku dlouhy
{
	if(eregi("^[a-z0-9]{4}[a-z0-9]*$", $string)) return $string;
	else return "chyba ";
}

function is_email_valid($email)
{
	if(eregi("^[a-z0-9\._-]+@+[a-z0-9\._-]+\.+[a-z]{2,3}$", $email)) return $email;
	else return "chyba ";
}

function is_int_valid($number)
{
	if(eregi("^[\+\-]?[0-9]+$", $number)) return $number;
	else return "chyba ";
}

function is_real_valid($number)
{
	if(eregi("^[\+\-]?[0-9]+((\.|,){0,1}[0-9]+){0,1}$", $number)) {
		$number=EregI_Replace(",",".",$number);
		return $number;
	}
	else { return "chyba "; }
}

function print_string($string)
{
	$string=StripSlashes($string);
	$string=HTMLSpecialChars($string);
	print($string);
}

function sprint_string($string)
{
	$string=StripSlashes($string);
	$string=HTMLSpecialChars($string);
	return($string);
}

function print_textarea($string) {
	$string=StripSlashes($string);
	$string=HTMLSpecialChars($string);
	$string=nl2br($string);
	print($string);
}

function sprint_text($string)
{
	$string=StripSlashes($string);
	$string=HTMLSpecialChars($string);
	return($string);
}

function is_in_array($string,$pole)
{
	$byloNalezeno=false;

	while(list($key, $value) = each($pole))
		{
			if ($value==$string)
				$byloNalezeno=true;
		}
	if ($byloNalezeno) return true;
	else return false;
}

function convert_time($mysql_timestamp)
{
if (ereg("^([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})",$mysql_timestamp,$res)):
   $info["year"]=$res[1];
   $info["month"]=$res[2];
   $info["day"]=$res[3];
   $info["hour"]=$res[4];
   $info["min"]=$res[5];
   $info["sec"]=$res[6];
return(($info["day"].".".$info["month"].".".$info["year"])." ".$info["hour"].":".$info["min"]);
else:
   return("Chyba !!!");
endif;
}

function  is_access_allowed($prava, $uzivatel)
{
	if ((isset($prava))&&($prava<=$uzivatel)) return true;
	else return false;
}

function myAddSlashes($st) {
  if (get_magic_quotes_gpc()) {		//get_magic_quotes_gpc - zapnute magicke uvozovky
    return ($st);
  } else {
    return AddSlashes($st);
  }
}


function ceske_datum($a)
{
    return (date("j",$a).".".datum_na_cesky_mesic($a)." ".date("Y",$a));
}

function datum_na_cesky_den($a)
{
   return (cesky_den(date("D",$a)));

}

function datum_na_cesky_mesic($a)
{
   return (cesky_mesic(date("F",$a)));

}

function cesky_mesic($a) {
	switch ($a) {
		case "January": return ("ledna"); break;
		case "February": return ("února"); break;
		case "March": return ("bøezna"); break;
		case "April": return ("dubna"); break;
		case "May": return ("kvìtna"); break;
		case "June": return ("èervna"); break;
		case "July": return ("èervence"); break;
		case "August": return ("srpna"); break;
		case "September": return ("záøí"); break;
		case "October": return ("øíjna"); break;
		case "November": return ("listopadu"); break;
		case "December": return ("prosince"); break;
	}
}

function cesky_den($a) {
	switch ($a) {
		case "Mon": return ("Pondìlí"); break;
		case "Tue": return ("Úterý"); break;
		case "Wed": return ("Støeda"); break;
		case "Thu": return ("Ètvrtek"); break;
		case "Fri": return ("Pátek"); break;
		case "Sat": return ("Sobota"); break;
		case "Sun": return ("Nedìle"); break;
	}
}

function TextSQL ($s) {
  $s="'".AddSlashes(Trim($s))."'";
  return $s;
}

function removeCzech ($s) {
  return strtr ($s, "ìšèøžýáíéúùïòÌŠÈØŽÝÁÍÚÙ", "escrzyaieuudtnESCRZYAIUU");
}

function Zakoduj($s) {
//  $s = "'".AddSlashes(HTMLentities(Trim($s)))."'";
  $s = "'".AddSlashes(HTMLspecialchars(Trim($s)))."'";
  return $s;
}

function Dorovnej($s,$i) {
  $s=str_pad($s,$i);
  return $s;
}

function GoodString($s) {
  $s=HTMLSpecialChars($s);
  return $s;
}


function LCrypt ($s) {
  for ($i=0;$i<strlen($s);$i++) $s[$i]=$s[$i] ^ (string)('A'+$i);
  return $s;
}

function LDecrypt ($s) {
  for ($i=0;$i<strlen($s);$i++) $s[$i]=$s[$i] ^ (string)('A'+$i);
  return $s;
}

function TestTextNULL($s) {
  if ($s=="") $s="NULL";
  else $s=TextSQL($s);
  return $s;
}

function PrintText($s) {
  return StripSlashes($s);
}

function SpojOddelovac ($kam,$odd,$co) {
  if (($kam!="")&&($co!="")) $kam=$kam.$odd;
  return ($kam.$co);
}

function PridejPred ($kam,$co) {

  if ($kam!="") $kam=$co.$kam;
  return ($kam);
}

function ExpandUrlID ($s) {
  $vysl = explode('-', $s, 2);
  if (count($vysl)>0) return $vysl[0];
  else return 0;
}

function getUrlID($i,$a,$urlcoded=false) {

  $a=strtolower(removeCzech($a));
  $a=str_replace(",","",$a);
  $a=str_replace("(","",$a);
  $a=str_replace(")","",$a);
  $a=str_replace("<","",$a);
  $a=str_replace(">","",$a);
  $a=str_replace("/","",$a);
  $a=str_replace(".","",$a);
  $a=str_replace(":"," ",$a);
  $a=str_replace("'"," ",$a);
  $a=str_replace("\\"," ",$a);
  $a=str_replace("&"," ",$a);
  $a=str_replace("?"," ",$a);
  $a=str_replace("!"," ",$a);
  $a=str_replace(";"," ",$a);
  $a=str_replace("\""," ",$a);
  $a=str_replace("'"," ",$a);
  $a=str_replace("*"," ",$a);
  $a=str_replace("–"," ",$a);
  $a=trim($a);
  $a=str_replace(" ","-",$a);
  $a = $i . '-' . $a;
  while (strpos($a,"--")!==false) {
    $a=str_replace("--","-",$a);
  }
  if ($urlcoded) $a = urlencode($a);
  return $a;
}

function MetaDescription ($s="", $od=0, $kolik=30) {
  if (strlen($s)>240) $s=substr($s,0,240)."...";
  if (($s!="")&&($od>0)) $s=$s." [".(($od/$kolik)+1)."]";

  return $s;
}

function MetaTitle ($s="", $od=0, $kolik=30) {
  if ($od>0) $s=$s." [".(($od/$kolik)+1)."]";

  return $s;
}

function IsGooglebot(){
  if(eregi("Googlebot",$_SERVER['HTTP_USER_AGENT'])){
    $ip=$_SERVER['REMOTE_ADDR'];

    //server name e.g. crawl-66-249-66-1.googlebot.com
    $name=gethostbyaddr($ip);
    if(eregi("Googlebot",$name)){
      $hosts=gethostbynamel($name);
      foreach($hosts as $host){
        if ($host==$ip){
          return true;
        }
      }
      return false;
    }else{
      return false;
    }
  }else{
    // Not Googlebot, take some action if needed
  }
  return false;
}

?>