<?
session_set_cookie_params(SESSION_TIME);
session_start();
$idutente = null;
if(isset($_SESSION['idutente'])) {
	$idutente = $_SESSION['idutente'];
}
#### FUNZIONI ##
function login($username,$password) {
	global $idutente, $db;
	$query = "select id,nome,cognome,email from utentiweb where username='$username' 
	and password='".md5($password)."' and attivo=1 limit 0,1";
	$stmt = $db->prepare($query);
	$stmt->execute();
	if($stmt->rowCount() > 0) {
		$nomecol = $stmt->fetch();
		$_SESSION['idutente'] = $idutente = $nomecol[0];
		$_SESSION['nome'] = $nomecol[1];
		$_SESSION['cognome'] = $nomecol[2];
		$_SESSION['email'] = $nomecol[3];
		$login = true;
	} else
		$login = false;
	return $login;
}

function logout() {
	global $idutente;
	$idutente = null;
	$_SESSION['idutente'] = null;
}
## END FUNZIONI ##
?><?
## FUNZIONI ##
function formattaStringaDb($str) {
	return utf8_decode(rawurldecode(stripslashes($str)));
}

function formattaStringaToDb($str) {
	return utf8_encode(addslashes($str));
}

function get_include_contents($filename) {
	global $lang,$idutente,$idordine,$user,$login,$cart,$articolo;
	if (is_file($filename)) {
		ob_start();
		include $filename;
		$contents = ob_get_contents();
		ob_end_clean();
		return $contents;
	}
	return false;
}

function generatePassword ($length=8) {
	$password = "";
	$possible = "0123456789bcdfghjkmnpqrstvwxyz";
	$i = 0;
	while ($i < $length) {
		$char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
		if (!strstr($password, $char)) {
			$password .= $char;
			$i++;
		}
	}
	return $password;
}

function getIva() {
	global $db;
	$query = "select valore from settaggi where nome='iva' limit 1;";
	$stmt = $db->prepare($query);
	$stmt->execute();
	$nomecol = $stmt->fetch();
	return $nomecol['valore'];
}

function ControlloCodiceFiscale($cf) {
	if( $cf == '' )  return false;
	if( strlen($cf) != 16 )
	return false;
	$cf = strtoupper($cf);
	if( ! ereg("^[A-Z0-9]+$", $cf) ){
		return false;
	}
	$s = 0;
	for( $i = 1; $i <= 13; $i += 2 ){
		$c = $cf[$i];
		if( '0' <= $c && $c <= '9' )
		$s += ord($c) - ord('0');
		else
		$s += ord($c) - ord('A');
	}
	for( $i = 0; $i <= 14; $i += 2 ){
		$c = $cf[$i];
		switch( $c ){
			case '0':  $s += 1;  break;
			case '1':  $s += 0;  break;
			case '2':  $s += 5;  break;
			case '3':  $s += 7;  break;
			case '4':  $s += 9;  break;
			case '5':  $s += 13;  break;
			case '6':  $s += 15;  break;
			case '7':  $s += 17;  break;
			case '8':  $s += 19;  break;
			case '9':  $s += 21;  break;
			case 'A':  $s += 1;  break;
			case 'B':  $s += 0;  break;
			case 'C':  $s += 5;  break;
			case 'D':  $s += 7;  break;
			case 'E':  $s += 9;  break;
			case 'F':  $s += 13;  break;
			case 'G':  $s += 15;  break;
			case 'H':  $s += 17;  break;
			case 'I':  $s += 19;  break;
			case 'J':  $s += 21;  break;
			case 'K':  $s += 2;  break;
			case 'L':  $s += 4;  break;
			case 'M':  $s += 18;  break;
			case 'N':  $s += 20;  break;
			case 'O':  $s += 11;  break;
			case 'P':  $s += 3;  break;
			case 'Q':  $s += 6;  break;
			case 'R':  $s += 8;  break;
			case 'S':  $s += 12;  break;
			case 'T':  $s += 14;  break;
			case 'U':  $s += 16;  break;
			case 'V':  $s += 10;  break;
			case 'W':  $s += 22;  break;
			case 'X':  $s += 25;  break;
			case 'Y':  $s += 24;  break;
			case 'Z':  $s += 23;  break;
		}
	}
	if( chr($s%26 + ord('A')) != $cf[15] )
	return false;
	return true;
}

function ControlloPIVA($pi){
	if( $pi == '' )  return false;
	if( strlen($pi) != 11 )
	return false;
	if( ! ereg("^[0-9]+$", $pi) )
	return false;
	$s = 0;
	for( $i = 0; $i <= 9; $i += 2 )
	$s += ord($pi[$i]) - ord('0');
	for( $i = 1; $i <= 9; $i += 2 ){
		$c = 2*( ord($pi[$i]) - ord('0') );
		if( $c > 9 )  $c = $c - 9;
		$s += $c;
	}
	if( ( 10 - $s%10 )%10 != ord($pi[10]) - ord('0') )
	return false;
	return true;
}

function TagliaStringa($stringa, $max_char){
		$stringa = strip_tags($stringa);
		if(strlen($stringa)>$max_char){
			$stringa_tagliata=substr($stringa, 0,$max_char);
			$last_space=strrpos($stringa_tagliata," ");
			$stringa_ok=substr($stringa_tagliata, 0,$last_space);
			return $stringa_ok.'...';
		}else{
			return $stringa;
		}
}

function codeLang($lang) {
	switch($lang) {
		case "ita":
			$res = 1;
			break;
			
			case "eng":
				$res = 2;
				break;
				
				case "fra":
					$res = 3;
					break;
					
					case "ger":
						$res = 5;
						break;
						
						case "spa":
							$res = 4;
							break;
	}
	return $res;
}
######
?>