/*********************************************
desc:	Form Checker library ,
		and use FormCheck CLASS
*********************************************/

function trim(value) {
   return value.replace(/^\s+|\s+$/g,"");
}

/*********************************************
		FORM CHECKER
*********************************************/
function FormChecker() {}
FormChecker.prototype.echoAlert = fc_echoAlert;
FormChecker.prototype.isEmpty = fc_isEmpty;
FormChecker.prototype.isValidIP = fc_isValidIP;
FormChecker.prototype.isValidIPorSubnetwork = fc_isValidIPorSubnetwork;
FormChecker.prototype.isPrivateIP = fc_isPrivateIP;
FormChecker.prototype.isValidIPv6 = fc_isValidIPv6;
FormChecker.prototype.isZone = fc_isZone;
FormChecker.prototype.isDomain = fc_isDomain;
FormChecker.prototype.isSrvDomain = fc_isSrvDomain;
FormChecker.prototype.isTxtDomain = fc_isTxtDomain;
FormChecker.prototype.isValidSubDomain = fc_isValidSubDomain;
FormChecker.prototype.isURL = fc_isURL;
FormChecker.prototype.isNumber = fc_isNumber;
FormChecker.prototype.isNaturalNumber = fc_isNaturalNumber;
FormChecker.prototype.isValidID = fc_isValidID;
FormChecker.prototype.isValidName = fc_isValidName;
FormChecker.prototype.isValidSpaceName = fc_isValidSpaceName;
FormChecker.prototype.isValidPassword = fc_isValidPassword;
FormChecker.prototype.isValidAuthcode = fc_isValidAuthcode;
FormChecker.prototype.isValidEmail = fc_isValidEmail;
FormChecker.prototype.isValidEmailLength = fc_isValidEmailLength;
FormChecker.prototype.isValidMXRank = fc_isValidMXRank;
FormChecker.prototype.isValidMailForward = fc_isValidMailForward;
FormChecker.prototype.isValidOfflineMsg = fc_isValidOfflineMsg;
FormChecker.prototype.isValidSubnet = fc_isValidSubnet;
FormChecker.prototype.isPTRZone = fc_isPTRZone;
FormChecker.prototype.isWithinRange = fc_isWithinRange;
FormChecker.prototype.proofreadCase = fc_proofreadCase;
FormChecker.prototype.htmlspecialchecker = fc_htmlspecialchecker;
/***  fc_echoAlert() {{{  ***/
function fc_echoAlert()
{
	alert('hi');
}
/***  }}}  ***/

/***  fc_isWithinRange() {{{  ***/
function fc_isWithinRange(value, min, max)
{
	if(isNaN(value) || value < min || value > max) {
		return false;
	} else {
		return true;
	}
}
/***  }}}  ***/

/***  fc_isEmpty(value) {{{  ***/
function fc_isEmpty(value)
{
	if (value == null) return true;

	var trimedValue = trim(value);
	if (trimedValue == '') return true;

	return false;
}
/***  }}}  ***/

/***  fc_isValidIP(ip) {{{  ***/
function fc_isValidIP(ip)
{
/*
	ip = trim(ip);

	if (ip == '') return false;

	ip_items = ip.split('.');
	field_number = ip_items.length;

	// IP has 4 fields
	if (field_number != 4) return false;

	// 255.255.255.255 is not valid
	if (ip == '255.255.255.255') return false;

	// 0 <= IP item area <= 255
	for (i = 0; i < field_number; i++) {
		var item = ip_items[i];
		item = new Number(item);
		alert(ip + '_-_' + item.toString());

		if (isNaN(item)) return false; // not numbert string
		if (item < 0 || item > 255) return false; // 0 ~ 255
	}

	return true;
*/
	ip = trim(ip);
	if (ip == '255.255.255.255') return false;
	var pattern = /^((((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5]))))$/;
	return pattern.test(ip);
}
/***  }}}  ***/

/***  fc_isValidIPorSubnetwork(ip) {{{  ***/
function fc_isValidIPorSubnetwork(ip)
{
	ip = trim(ip);
	var re = /^([\w\.]+)($|\/\d{1,2})/;

	var m = re.exec(ip);

	if (m == null)
		return false;
	else {
		var isValidIP = fc_isValidIP(m[1]);
		var isValidSubnetMask = false;
		if (m[2] == "" || (m[2].substr(1) >= 0 && m[2].substr(1) <= 32))
			isValidSubnetMask = true;
		return isValidIP && isValidSubnetMask;
	}
}
/***  }}}  ***/

/***  fc_isValidIPv6(ip) {{{  ***/
function fc_isValidIPv6(ip)
{
	ip = trim(ip);
	var pattern = /^(^(([0-9A-Fa-f]{1,4}(((:[0-9A-Fa-f]{1,4}){5}::[0-9A-Fa-f]{1,4})|((:[0-9A-Fa-f]{1,4}){4}::[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,1})|((:[0-9A-Fa-f]{1,4}){3}::[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,2})|((:[0-9A-Fa-f]{1,4}){2}::[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,3})|(:[0-9A-Fa-f]{1,4}::[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,4})|(::[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,5})|(:[0-9A-Fa-f]{1,4}){7}))$|^(::[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,6})$)|^::$)|^((([0-9A-Fa-f]{1,4}(((:[0-9A-Fa-f]{1,4}){3}::([0-9A-Fa-f]{1,4}){1})|((:[0-9A-Fa-f]{1,4}){2}::[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,1})|((:[0-9A-Fa-f]{1,4}){1}::[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,2})|(::[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,3})|((:[0-9A-Fa-f]{1,4}){0,5})))|([:]{2}[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,4})):|::)((25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{0,2})\.){3}(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{0,2})$$/;
	return pattern.test(ip);
}
/***  }}}  ***/

/***  fc_isZone() {{{  ***/
function fc_isZone(domain)
{
	domain = trim(domain);
	var length = domain.length;

	if (length > 70)
		return false;

	var domainPattern = /^(([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])))$/
	return domainPattern.test(domain);
}
/***  }}}  ***/

/***  fc_isDomain() {{{  ***/
function fc_isDomain(domain)
{
	domain = trim(domain);
	var length = domain.length;
	//alert(length);

	if (length > 200)
		return false;

	var domainPattern = /^((\*\.)?([a-zA-Z0-9\_]([a-zA-Z0-9\-\_]{0,61}[a-zA-Z0-9])?\.)+([a-zA-Z0-9\_]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])))$/

	return domainPattern.test(domain);
}
/***  }}}  ***/

/***  fc_isSrvDomain() {{{  ***/
function fc_isSrvDomain(domain)
{
	domain = trim(domain);
	var length = domain.length;
	//alert(length);

	if (length > 200)
		return false;

	var domainPattern = /^((\*\.)?([a-zA-Z0-9\_]([a-zA-Z0-9\-\_]{0,61}[a-zA-Z0-9])?\.)+([a-zA-Z0-9\_]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])))$/
	return domainPattern.test(domain);
}
/***  }}}  ***/

/***  fc_isTxtDomain() {{{  ***/
function fc_isTxtDomain(domain)
{
	domain = trim(domain);
	var length = domain.length;
	//alert(length);

	if (length > 200)
		return false;

	var domainPattern = /^((\*\.)?([a-zA-Z0-9\_]([a-zA-Z0-9\-\_]{0,61}[a-zA-Z0-9])?\.)+([a-zA-Z0-9\_]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])))$/
	return domainPattern.test(domain);
}
/***  }}}  ***/

/***  fc_isValidSubDomain() {{{  ***/
/*** 새로운 도메인규약에는 서브도메인명에 언더스코어가 들어갈 수 있다. */
function fc_isValidSubDomain(subDomain)
{
	subDomain = trim(subDomain);
	var length = subDomain.length;

	if (length > 61)
		return false;

	var subDomainPattern = /^((\*.+)|(([A-Za-z0-9\-\_])+\.+([A-Za-z0-9\-\_])+))$/
	return subDomainPattern.test(subDomain);
}
/***  }}}  ***/

/***  fc_isSrvSubDomain() {{{  ***/
function fc_isSrvSubDomain(subDomain)
{
	subDomain = trim(subDomain);
	var length = subDomain.length;
	//alert(length);

	if (length > 61)
		return false;

	var subDomainPattern = /^((\*.+)|(([A-Za-z0-9\-\_])+\.+([A-Za-z0-9\-])+))$/
	return subDomainPattern.test(subDomain);
}
/***  }}}  ***/

/***  fc_isURL() {{{  ***/
function fc_isURL(url)
{
	var pattern = /^([A-Za-z]{3,9})\:\/\/(((([a-z0-9\-])+\.)+([a-z]{2}\.[a-z]{2}|[a-z]{2,4}))|((((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))))/

	return pattern.test(url);
}
/***  }}}  ***/

/***  fc_isNumber() {{{  ***/
function fc_isNumber(value)
{
	if (isNaN(value) == true) {
		return false;
	}
	else return true;
}
/***  }}}  ***/

/***  fc_isNaturalNumber() {{{  ***/
function fc_isNaturalNumber(value)
{
    var length = value.length;
    var x = parseFloat(value);
    if (!isNaN(value) && (x | 0) === x) {
        return length == x.toString().length;
    } else {
        return false;
    }
}
/***  }}}  ***/

/***  fc_isValidID(id) {{{  ***/
function fc_isValidID(id)
{
	var res;
	var idLength;
	var idPattern = /^[a-zA-Z]+[a-zA-Z0-9]*$/;

	res = this.isEmpty(id);
	if (res == true) return false;

	idLength = id.length;
	if (idLength < 5 || idLength > 20) return false;

	return idPattern.test(id);
}
/***  }}}  ***/

/***  fc_isValidName(name) {{{  ***/
function fc_isValidName(name)
{
	var namePattern = /[a-zA-Z0-9]/;
	return namePattern.test(name);
}
/***  }}}  ***/

/***  fc_isValidSpaceName(name) {{{  ***/
function fc_isValidSpaceName(name)
{
	var namePattern = /[^\s]+[\s]+[^\s]+/;
	return namePattern.test(name);
}
/***  }}}  ***/

/***  fc_isValidPassword(password) {{{  ***/
function fc_isValidPassword(password)
{
	var res;
	var passwordLength;

	res = this.isEmpty(password);
	if (res == true) return false;

	passwordLength = password.length;
	if (passwordLength < 5 || passwordLength > 40) return false;

	return true;
}
/***  }}}  ***/

/***  fc_isValidEmail(Email) {{{  ***/
function fc_isValidEmail(email)
{
	var emailPattern = /^([a-zA-Z0-9_\-\.\+]+)@[a-z0-9][a-z0-9\.\-]+[a-z0-9]+$/
	return emailPattern.test(email);
}
/***  }}}  ***/

/***  fc_isValidEmailLength(Email) {{{  ***/
function fc_isValidEmailLength(email)
{
    if (email.length >= 50)
        return false;
    else
        return true;
}
/***  }}}  ***/

/***  fc_isValidMXRank() {{{  ***/
function fc_isValidMXRank(rank)
{
	if (isNaN(rank) == true) {
		return false;
	}
	if (rank < 0 || rank > 32767) {
		return false;
	}
	return true
}
/***  }}}  ***/

/***  fc_isValidMailForward(userDomain, newEmail) {{{  ***/
function fc_isValidMailForward(userDomain, newEmail)
{
	var mailForwardPattern = new RegExp('@'+userDomain, "i");
	return mailForwardPattern.test(newEmail);
}
/***  }}}  ***/

/***  fc_isPrivateIP(ip) {{{  ***/
function fc_isPrivateIP(ip)
{
	ip = trim(ip);
	if (ip == '255.255.255.255')
		return false;
	var pattern = /^(10\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5]))))|^(172\.((((1[[6-9])|(2[0-9])|(3[0-1])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))))|^(192\.168\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5]))))|^(127\.0\.0\.1)$/;
	return pattern.test(ip);
}
/***  }}}  ***/

/***  fc_isValidAuthcode(authcode) {{{  ***/
function fc_isValidAuthcode(authcode)
{
	var res;
	var authcodeLength;
	var authcodePattern = /^[a-zA-Z0-9]*$/;

	res = this.isEmpty(authcode);
	if (res == true) return false;

	authcodeLength = authcode.length;
	if (authcodeLength < 5 || authcodeLength > 40) return false;

	return authcodePattern.test(authcode);
}
/***  }}}  ***/

/***  fc_isValidOfflineMsg() {{{  ***/
function fc_isValidOfflineMsg(message)
{
	message = trim(message);
	var pattern = /<SCRIPT/i
	return pattern.test(message);
}
/***  }}}  ***/

/***  fc_isValidSubnet(subnet) {{{  ***/
function fc_isValidSubnet(subnet)
{
	subnet = trim(subnet);
	var pattern = /^((255)\.(255)\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5]))))$/;
	return pattern.test(subnet);
}
/***  }}}  ***/

/***  fc_isPTRZone() {{{  ***/
function fc_isPTRZone(domain)
{
	domain = trim(domain);
	var length = domain.length;

	if (length > 50)
		return false;

	var PTRZonePattern = /^((([A-Za-z0-9\-])+\.){1,5}in-addr\.arpa)$/

//	var PTRZonePattern = /^((([0-9\-\/])+\.)+((((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.){1,3}in-addr\.arpa)$/
//	var PTRZonePattern = /^(((([0-9\-\/])+|(([0-1])?([0-9])?[0-9])\.)(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.){1,3}in-addr\.arpa)$/
	return PTRZonePattern.test(domain);
}
/***  }}}  ***/

/***  fc_proofreadCase() {{{  ***/
function fc_proofreadCase(url)
{
    var domain = ((url.split('/')[0]).toLowerCase()+'//'+url.split('/')[1]+(url.split('/')[2]).toLowerCase())
    return domain + url.substr(domain.length)
}
/***  }}}  ***/

/***  fc_htmlspecialchecker(string) {{{  ***/
function fc_htmlspecialchecker(str)
{
	var res;

    if(str.search('"') != -1) {
        return true;
    }

    if(str.search('\'') != -1) {
        return true;
    }

    if(str.search('<') != -1) {
        return true;
    }

    //if(str.search('&') != -1) {
      //  return true;
//    }

    if(str.search('>') != -1) {
        return true;
    }

	return false;
}
/***  }}}  ***/


/* VIM SETTING {{{
* vim600: fdm=marker
}}} */