// $Id: form-validator.js 42308 2009-05-28 10:00:19Z maria $
/**
 *
 * Copyright (c) 2004-2009 by Zapatec, Inc.
 * http://www.zapatec.com
 * 1700 MLK Way, Berkeley, California,
 * 94709, U.S.A.
 * All rights reserved.
 */
if(Zapatec == null){
Zapatec = {};
}
if(Zapatec.Form == null){
Zapatec.Form = {};
} 
//Array of Data Types
Zapatec.Form.dataTypes = {};
Zapatec.Form.Validator = [];
/*
* Small function to add datatypes to Zapatec.Form.dataTypes
* @param zpName {String} name of this datatype
* @param name {String} internal name
* @param regex {RegExp} regexp to validate
* @param error {String} text to use, if validation was not passed
* @param help {String} help message
* @param func {function} function to use for validating field value
*/
Zapatec.Form.Validator.addDataType = function(zpName, name, regex, error, help, func) {
Zapatec.Form.dataTypes[zpName] = {
zpName: zpName,
name: name,
regex: regex,
error: error,
help: help,
func: func
};
};
// backward compartibility
Zapatec.Form.addDataType = Zapatec.Form.Validator.addDataType;
/*
 * Returns true, if given string is valid domain name
 * Valid domains:
 *	127.0.0.1
 *	google.com
 *	http://www.google.com/
 * @param domain {string} value to test
 * @return true if value is correct domain name
 * @type boolean
 */
Zapatec.Form.Validator.isDomainValid = function(domain){
if(typeof(domain) != 'string'){
return false;
}
for (i = 0; i < domain.length; i++){
if (domain.charCodeAt(i) > 127){
return false;
}
}
var ipDigit = "(0?0?\\d|[01]?\\d\\d|2[0-4]\\d|25[0-6])";
var ipRE = new RegExp("^" + ipDigit + "\\." + ipDigit + "\\." + ipDigit + "\\." + ipDigit + "$");
if (ipRE.test(domain)) {
return true;
}
var domains = domain.split(".");
if (domains.length < 2) {
return false;
}
for (i = 0; i < domains.length - 1; i++) {
if (!(/^[a-zA-Z0-9\-]+$/).test(domains[i])) {
return false;
}
}
if(domains[domains.length-2].length < 2){
return false;
}
if (!(/^[a-zA-Z]{2,}$/).test(domains[domains.length-1])){
return false;
}
return true;
};
/*
 * Returns true, if given string is valid domain name
 * Valid urls:
 *	127.0.0.1
 *	http://127.0.0.1/index.html?query
 *	google.com
 *	http://www.google.com/search?q=Zapatec
 * @param url {String} value to test
 * @return true if value is correct URL
 * @type boolean
 */
Zapatec.Form.Validator.isUrlValid = function(url){
if(typeof(url) != 'string'){
return false;
}
var domain = url;
var protocolSeparatorPos = url.indexOf("://");
var domainSeparatorPos = url.indexOf("/", protocolSeparatorPos + 3);
if(protocolSeparatorPos == 0){
return false;
}
domain = url.substring(
(protocolSeparatorPos > 0 ? protocolSeparatorPos + 3 : 0),
(domainSeparatorPos > 0 ? domainSeparatorPos : url.length)
);
var portSeparatorPos = domain.indexOf(":");
if(portSeparatorPos > 0){
var port = domain.substring(portSeparatorPos + 1);
if(!port.match(/\d+/)){
// port number contains non-digits
return false;
}
domain = domain.substring(0, portSeparatorPos);
}
return Zapatec.Form.Validator.isDomainValid(domain);
};
/**
 * Checks if given string is valid email address.
 * @param url {String} value to test
 * @return true if value is correct email
 * @type boolean
 */
Zapatec.Form.Validator.isEmailValid = function(email){
if(email == null){
return false;
}
var atPos = email.indexOf("@");
if(
atPos < 1 ||
email.indexOf(".", atPos) == -1
){
return false;
}
var login = email.substring(0, atPos);
var domain = email.substring(atPos + 1, email.length);
// Regexp declarations
    var atom = "\[^\\s\\(\\)><@,;:\\\\\\\"\\.\\[\\]\]+";
    var word = "(" + atom + "|(\"[^\"]*\"))";
    var loginRE = new RegExp("^" + word + "(\\." + word + ")*$");
    for (i = 0; i < login.length; i++){
        if (login.charCodeAt(i) > 127){
            return false;
        }
    }
    if (!login.match(loginRE)){
        return false;
    }
    return Zapatec.Form.Validator.isDomainValid(domain);
};
/*
 * Returns true, if given string is valid credit card number(according to Luhn
 * algorythm)
 * @param cardNumber - [string] value to test
 * @return true if value is correct domain name
 * @type boolean
 */
Zapatec.Form.Validator.isCreditCardValid = function(cardNumber){
if(cardNumber == null){
return false;
}
var cardDigits = cardNumber.replace(/\D/g, "");
var parity = cardDigits.length % 2;
var sum = 0;
for(var ii = 0; ii < cardDigits.length; ii++){
var digit = cardDigits.charAt(ii);
if (ii % 2 == parity)
digit = digit * 2;
if (digit > 9)
digit = digit - 9;
sum += parseInt(digit);
}
return ((sum != 0) && (sum % 10 == 0));
};
/*
 * Returns true if given string is valid date according to given format. Default format: "%m/%d/%y"
 * @param str - [string] value to test
 * @param format - [string] date format
 * @return true if value is correct domain name
 * @type boolean
 */
Zapatec.Form.Validator.isDateValid = function(str, fmt){
if(fmt == null || fmt == ""){
fmt = "%m/%d/%y";
}
var separator = " ";
var nums = fmt.split(separator);
// split format string into tokens
if (nums.length < 3){
separator = "/";
nums = fmt.split(separator);
if (nums.length < 3){
separator = ".";
nums = fmt.split(separator);
if (nums.length < 3){
separator = "-";
nums = fmt.split(separator);
if (nums.length < 3){
separator = null;
}
}
}
}
if(separator == null){
return false;
}
var y = null;
var m = null;
var d = null;
var a = str.split(separator);
if(a.length != 3){
return false;
}
var b = fmt.match(/%./g);
var nlDays = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
var lDays  = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
    for (var i = 0; i < a.length; ++i) {
if (!a[i])
continue;
switch (b[i]) {
    case "%d":
    case "%e":
d = parseInt(a[i], 10);
if(d <= 0 || d > 31)
d = -1;
break;
    case "%m":
m = parseInt(a[i], 10) - 1;
if(m > 11 || m < 0)
m = -1;
break;
    case "%Y":
    case "%y":
y = parseInt(a[i], 10);
(y < 100) && (y += (y > 29) ? 1900 : 2000);
break;
}
}
if (y == null || m == null || d == null || isNaN(y) || isNaN(m) || isNaN(d)){
return false;
}
if(m != -1){
if ((y % 4) == 0) {
if ((y % 100) == 0 && (y % 400) != 0){
if(d > nlDays[m]){
d = -1;
}
}
if(d > lDays[m]){
d = -1;
}
} else {
if(d > nlDays[m]){
d = -1;
}
}
}
if (y != 0 && m != -1 && d != -1){
return true;
}
return false;
};
/**
 * Checks if given string has given number of characters
 * @param url {String} value to test
 * @param length {String} min length
 * @return true if value is has at least <i>length</i> characters
 * @type boolean
 */
Zapatec.Form.Validator.hasMinLength = function(str, length){
return (str + "").length >= parseInt(length);
}
/**
 * Checks if given string doesnt has more then given number of characters
 * @param url {String} value to test
 * @param length {String} max length
 * @return true if value is has less or equal then <i>length</i> characters
 * @type boolean
 */
Zapatec.Form.Validator.hasMaxLength = function(str, length){
return (str + "").length <= parseInt(length);
}
//Initialize the validators
Zapatec.Form.Validator.addDataType(
'zpFormUrl',
'A URL -- web address',
null,
'invalidURLError',
"Valid URL needs to be in the form http://www.yahoo.com:80/index.html or just www.yahoo.com",
Zapatec.Form.Validator.isUrlValid
);
Zapatec.Form.Validator.addDataType(
'zpFormEmail',
'An Email Address',
null,
'invalidEmailError',
"Valid email address need to be in the form of nobody@example.com",
Zapatec.Form.Validator.isEmailValid
);
Zapatec.Form.Validator.addDataType(
'zpFormCreditCard',
'Credit card number',
null,
'invalidCreditCardError',
"Please enter valid credit card number",
Zapatec.Form.Validator.isCreditCardValid
);
Zapatec.Form.Validator.addDataType(
'zpFormUSPhone',
'A USA Phone Number',
/^((\([1-9][0-9]{2}\) *)|([1-9][0-9]{2}[\-. ]?))(\d[ -]?){6}\d *(ex[t]? *[0-9]+)?$/,
'invalidUSPhoneError',
"Valid US Phone number needs to be in the form of 'xxx xxx-xxxx' For instance 312 123-1234. An extention can be added as ext xxxx. For instance 312 123-1234 ext 1234",
null
);
Zapatec.Form.Validator.addDataType(
'zpFormInternationalPhone',
'An international Phone Number',
/^\+\d{1,3}[ -]\d{2,3}[ -](\d[ -]?){6}\d *(ex[t]? *[0-9]+)?$/,
//	/^((\([1-9][0-9]{2}\) *)|([1-9][0-9]{2}[\-. ]?))[0-9]{3}[\-. ][0-9]{4} *(ex[t]? *[0-9]+)?$/,
'invalidInternationalPhoneError',
"Valid internation phone number needs to be in the form of '+x xxx xxx-xxxx' For instance +1 234 567-9012. An extention can be added as ext xxxx. For instance +1 234 567-9012 ext 1234",
null
);
Zapatec.Form.Validator.addDataType(
'zpFormUSZip',
'A USA Zip Number',
/(^\d{5}$)|(^\d{5}-\d{4}$)/,
'invalidUSZipError',
"Valid US Zip number needs to be either in the form of '99999', for instance 94132 or '99999-9999' for instance 94132-3213",
null
);
Zapatec.Form.Validator.addDataType(
'zpFormDate',
'A Valid Date',
null,
'invalidDateError',
"Please enter a valid date",
Zapatec.Form.Validator.isDateValid
);
Zapatec.Form.Validator.addDataType(
'zpFormInt',
'An Integer',
null,
'invalidIntError',
"Please enter an integer",
function(number) {
return /^\d+$/.test(number);
}
);
Zapatec.Form.Validator.addDataType(
'zpFormFloat',
'A Floating Point Number',
null,
'invalidFloatError',
"Please enter a Floating Point Number",
function(number) {
var parsed = parseFloat(number);
return (parsed == number);
}
);
Zapatec.Form.Validator.addDataType(
'zpFormMinLength',
'Min length',
null,
'minLengthError',
"Value is too short",
Zapatec.Form.Validator.hasMinLength
);
Zapatec.Form.Validator.addDataType(
'zpFormMaxLength',
'Max length',
null,
'maxLengthError',
"Value is too long",
Zapatec.Form.Validator.hasMaxLength
);