//$Frontfree: projects/MSUII/Web/skins/DPS.Module.Members/form_validator.js,v 1.3 2006/03/12 16:26:43 adong Exp $
/////////////////////////////////////////////////////////////
//                Setup Class Names
/////////////////////////////////////////////////////////////
//default classes for infobox
var infoboxOkClass		= "OkMsg";
var infoboxWarningClass	= "WarningMsg";
var infoboxErrorClass	= "ErrorMsg";
var infoboxHintClass	= "HintMsg";
//default classes for input field
var inputWarningClass	= "Warning";
var inputErrorClass		= "Error";
var inputOkClass		= "Ok";
var inputNormalClass	= "Normal";


/////////////////////////////////////////////////////////////
//                Initialize Form
/////////////////////////////////////////////////////////////
function initForm(){	
	//initialize form UI and add triggers
	
	var infobox;
	var x = document.getElementById("RegisterMainTable");
	if(!x) return;
	var y = x.getElementsByTagName("input");
	for (var i=0;i<y.length;i++){
	//alert(y[i].id);
		if(y[i].type == 'text' || y[i].type == 'password'){
			initStatus(y[i],true);
			setFiledWidth(y[i]);
			y[i].onfocus	= getFocus;
			y[i].onblur		= lostFocus;
			y[i].onkeyup	= showMyStatus;
		}
		if(y[i].type == "checkbox" ){
		
			initStatus(y[i],false);
			y[i].onfocus	= getFocus;
			y[i].onblur		= lostFocus;
			y[i].onkeyup	= showMyStatus;
		}
		
	}
	
}
function initStatus(obj,isInput){
	if(isInput){
	    if(isRequired(obj)) 
		{
    		//alert('');
		    showStatus(obj,"Warning");
		    //alert('');
		}
		else showStatus(obj,"Normal");
	}
	//返回的是infobox对象
	var infobox = getInfobox(obj);
	//返回的是输入框的状态，类型目前未知
	//默认错误代码errorCode是null或0，表明没有错误或初始状态没有赋值。
	var errorCode = getInitStatus(obj);
	if(infobox && infobox.innerHTML == ""){
		if(!errorCode || errorCode == 0){
		    //默认状态
			infobox.className	= infoboxHintClass;
			infobox.innerHTML	= getErrorMsg(obj,0);
		}
		if(errorCode >0){
			infobox.className	= infoboxErrorClass;
			infobox.innerHTML	= getErrorMsg(obj,errorCode);
		}
	}	
}
/////////////////////////////////////////////////////////////
//                Base Functions
/////////////////////////////////////////////////////////////
function isIE() {
	if(document.all) return true;
	return false;
}
function setFiledWidth(obj){
    //alert(obj.size);
    //不明白是什么意思？？？暂时注释掉
	//obj.style.width=(19/3)*obj.size+11;
}
function formEle(required,datatype,parameter,infobox,errormsg,combine,status){
	this.r	= required;	
	this.d	= datatype;
	this.p	= parameter;
	this.i	= infobox;
	this.e	= errormsg;
	this.c = combine;
	this.s = status;
}
function isRequired(obj){
    if(obj.id){
	    if(eval(obj.id).r) return eval(obj.id).r;
	}
	return false;
}
function isCombine(obj){
	if(obj.id){
		if(eval(obj.id).c) return eval(obj.id).c;
	}
	return false;
}
function getDatatype(obj){
	if(obj.id){
		if(eval(obj.id).d) return eval(obj.id).d;
	}
	return false;
}
function getInfobox(obj){
   
	if(obj.id){
		if(eval(obj.id).i && document.getElementById(eval(obj.id).i)) 
		return document.getElementById(eval(obj.id).i);
	}
	return;
}
function getErrorMsg(obj,errorCode){
	if(obj.id){
		if(eval(obj.id).e[errorCode]) return eval(obj.id).e[errorCode];
	}
	return;
}
function getHintMsg(obj){
	if(obj.id){
		if(eval(obj.id).e[0]) return eval(obj.id).e[0];
	}
	return;
}
function getInitStatus(obj){
	if(obj.id){
		if(eval(obj.id).s || eval(obj.id).s==0 ) return eval(obj.id).s;
	}
	return;
}
function getAttrName(str){
	var s=str.split("=");
	return s[0];
}
function getAttrValue(str){
	var s=str.split("=");
	return s[1];
}
function getAttrValueByName(obj,str){
	var para;
	if(obj.id){
		if(eval(obj.id).p) para=eval(obj.id).p;
		else return;
	}else{
		return;
	}
	var s = para.split(",");
	for(var i=0;i<s.length;i++){
		if(getAttrName(s[i]) == str){
			if(getAttrValue(s[i]))
				return getAttrValue(s[i]);
			else
				return;
		}
	}
	return;
}
function getMailServer(str){
	//be sure str is a correct email address
	str = str.trim();
	return str.substr(str.indexOf("@")+1);
}
function getMailAccount(str) {
	str = str.trim();
	return str.substr(0, str.indexOf("@"));
}
function isNumber(str) {
	var patn = new RegExp("^\\d{1,15}$"); 
	if (patn.test(str)) {
		return true;
	} else {
		return false; 	
	}
}

String.prototype.trim = function()
{
    return this.replace(/(^\s*)|(\s*$)/g, "");
}

/////////////////////////////////////////////////////////////
//                UI Functions
/////////////////////////////////////////////////////////////
function getFocus(evnt)
{
	var obj;
	if (isIE()) {
		obj = event.srcElement;
	}else {
		obj = evnt.target;
	}
	showInfo(obj,0);
}
function lostFocus(evnt)
{
	var obj;
	if (isIE()) {
		obj = event.srcElement;
	}else {
		obj = evnt.target;
	}
	showInfo(obj,-1);
}
function showInfo(obj,errorCode,forcible)
//Show Information in Infobox
//errorCode==0 for hint message
//if forcible==true, no matter what the status of infobox now, change it,
//otherwise,if the status of infobox is "Error", do not change it forever.
{
	var infobox = getInfobox(obj);
	if(infobox){
		if(infobox.className != infoboxErrorClass || forcible){
			if(errorCode == 0){
				infobox.className	= infoboxWarningClass;
				infobox.innerHTML	= getErrorMsg(obj,errorCode);
			}
			if(errorCode >0){
				infobox.className	= infoboxErrorClass;
				infobox.innerHTML	= getErrorMsg(obj,errorCode);
			}
			if(errorCode <0){
				infobox.className	= infoboxHintClass;
			}
		}
	}	
}
function showMyStatus(evnt){
	var obj,errorCode;
	if (isIE()) {
		obj = event.srcElement;
	}else {
		obj = evnt.target;
	}
	
	errorCode = validateValue(obj);
	
	if(errorCode == 0){
		showStatus(obj,"Ok");
	}
	if(errorCode >= 1){
		showStatus(obj,"Error");
	}
	if(errorCode < 0){
		showStatus(obj,"Normal");
	}
}
function showStatus(obj,stat)
//Show the status of user currently inputting field
//3 Statuses: Warning|Error|Ok
{
	switch(stat){
		case "Warning":
//		    alert(obj.id);
//		    alert(stat);
			obj.className = inputWarningClass;
			break;
		case "Error":
			obj.className = inputErrorClass;
			break;
		case "Ok":
			obj.className = inputOkClass;
			break;
		default:
			obj.className = inputNormalClass;
			break;
	}
}
/////////////////////////////////////////////////////////////
//                Validator Functions
/////////////////////////////////////////////////////////////
function validateValue(obj){
	//trim
	var patn = /(^\s)|(\s$)/;
	//如果是判断密码提示问题和问题答案则不Trim
	if(patn.test(obj.value) && (getDatatype(obj) !='SecurityQuestion') && (getDatatype(obj) !='SecurityAnswer'))	obj.value = obj.value.trim();
	//switcher
	var errorCode = -1;
	switch(getDatatype(obj)){
		case "username":
			errorCode = validateUsername(obj);
			break;
		case "password":
		    errorCode = validatePassword(obj);
		   	break;
		case "safepassword":
		    //alert('');
			errorCode = validateSafePassword(obj);
			//alert(errorCode);
			break;
		case "email":
			errorCode = validateEmail(obj);
			break;
		case "mirror":
			errorCode = validateMirror(obj);
			break;
		case "num":
			errorCode = validateNum(obj);
			break;
		case "mobile":
			errorCode = validateMobile(obj);
			break;
		case "checkcode":
			errorCode = validateCheckCode(obj);
			break;
		case "SecurityQuestion":
		    errorCode = validateSecurityQuestion(obj);
		    //alert('');
		    //errorCode = 0;
			break;
		case "SecurityAnswer":
		    errorCode = validateSecurityAnswer(obj);
		    //errorCode = 0;
			break;
		default:
			errorCode = -1;
			break;
	}
	return errorCode;
}


function validateAll_reg(formObj){
	var obj,infobox,pass;
	pass = true;
//	var x = formObj;
    var x = document.getElementById(formObj);
	if(!x) return;
	var y = x.getElementsByTagName("input");
//	alert(registerButtonObjID);
	for (var i=0;i<y.length;i++){
	    if(y[i].id == registerButtonObjID)
	    {
	        break;
	    }
		obj = y[i];
		obj.value = obj.value.trim();
		infobox = getInfobox(y[i]);
		
		if(obj.type == 'text' || obj.type == 'password'){
			if(!isRequired(obj) && obj.value == ""){
				continue;
			}
			if(isRequired(obj) && obj.value == ""){
				pass = false;
				obj.focus();
				showStatus(obj,"Error");
				infobox.className	= infoboxErrorClass;
				infobox.innerHTML	= requireErrorInfo + getErrorMsg(obj,0);
				if(isCombine(obj)) break;
				continue;
			}
			if(validateValue(obj)>0){
				pass = false;
				obj.focus();
				showStatus(obj,"Error");
				showInfo(obj,validateValue(obj),true);
				if(isCombine(obj)) break;
				continue;
			}
			if(validateValue(obj)==0){
				showStatus(obj,"Ok");
				infobox.className	= infoboxHintClass;
				infobox.innerHTML	= validatedInfo;
				continue;
			}
		}
	}
	return pass;
}


//functions for each particular datatype validation
function validateUsername(obj){
	var str = obj.value;
	//var patn =   /^[\u0391-\uFFE5a-zA-Z0-9][\u0391-\uFFE5\w]{2,20}$/; 
	var patn = /^[^\s]*$/;
	if(patn.test(str)){
		if(checkByteLength(str,5,20)) return 0;
	}
	return 1; 
}
function validatePassword(obj){
	var str = obj.value;
	//var patn = /.{6,16}/;
	if(str.length>16 || str.length<6)
	{
	    return 1;
	}
	else
	{
	    return 0;
	}
	
//	var patn = new RegExp(".{6,16}");
//	if(patn.test(str)) 
//	{
//	    return 0;
//	}
//	return 1; 
}
function validateSafePassword(obj){
	var str = obj.value;
	//alert(usernameObjID);
	//check length and alphabet
	//alert('dfefad11');
	if(validatePassword(obj)>0) return 1;
	
	//alert('dfefad');
	//check if same as username
	
//	if(str == document.getElementById(usernameObjID).value)
//	{
//	    return 2;
//	}
	//check if all the characters are the same
	for(var i=0;i<str.length;i++){
		if(str.charAt(0)!=str.charAt(i)) break;
	}
	if(i == str.length) return 3;
	//check if is number sequence
	var seqStr="01234567890";
	if(seqStr.indexOf(str) != -1) return 4;
	//check if is lower alphabet sequence
	var seqStr="abcdefghijklmnopqrstuvwxyz";
	if(seqStr.indexOf(str) != -1) return 5;
	//check if is upper alphabet sequence
	var seqStr="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
	if(seqStr.indexOf(str) != -1) return 6;
	//if validated
	return 0;
}
function validateEmail(obj){
	var str = obj.value;
	var patn = /^[_a-zA-Z0-9\-]+(\.[_a-zA-Z0-9\-]*)*@[a-zA-Z0-9\-]+([\.][a-zA-Z0-9\-]+)+$/;
	if(patn.test(str)){
		var blocklist = eval(obj.id).p;
		if (blocklist.length > 0){
			for(var i=0;i<blocklist.length;i++){
				if(getMailServer(obj.value) == blocklist[i])
					return 2;//mailserver in block list
			}
			//return 0;
		}
		//针对Yahoo邮箱做限制
		//不需要此功能，所以注释掉
//		var mailServer = getMailServer(obj.value);
//		if (mailServer == "yahoo.com") {
//				return 3;
//		} else if (mailServer == "126.net") {
//				return 4;
//		}
		return 0;
	}else{
		return 1; //incorrect format
	}
}
function validateNum(obj){
	var str = obj.value;
	var patn = new RegExp("\\d{"+getAttrValueByName(obj,"minlen")+","+getAttrValueByName(obj,"maxlen")+"}"); 
	if(patn.test(str)) return 0;
	return 1; 	
}
function validateMobile(obj){
	var str = obj.value;
	var patn = /^13\d{9}$/;
	if(patn.test(str)) return 0;
	return 1; 	
}
function validateCheckCode(obj){
	var str = obj.value;
	var patn = /^[0-9a-zA-Z]{4}$/;
	if(patn.test(str)) return 0;
	return 1;
}	
function validateMirror(obj){
	if(validateSameAs(obj)){
		var sameobj = document.getElementById(getAttrValueByName(obj,"sameas"));
		var sameobj_dt;
		if(eval(sameobj.id).d) sameobj_dt=eval(sameobj.id).d;
		else return -1;
		if(sameobj_dt != "mirror"){ //avoid a mirror type filed being another mirror type filed's mirror
			if(validateValue(sameobj) == 0)	 return 0;
			else return 2;
		}
	}
	return 1;
}
function validateSameAs(obj){
	var v1,v2;
	if(!getAttrValueByName(obj,"sameas")) return true;
	v1=obj.value;
	v2=document.getElementById(getAttrValueByName(obj,"sameas")).value;
	if(v1 == v2) return true;
	return false;
}

function validateSecurityQuestion(obj){
    if(obj.value.length == 0){
        return 1;
    }
    else {
        return 0;
    }
}

function validateSecurityAnswer(obj){
    if(obj.value.length == 0){
        return 1;
    }
    else {
        return 0;
    }
}

function checkByteLength(str,minlen,maxlen) {
	if (str == null) return false;
	var l = str.length;
	var blen = 0;
	for(i=0; i<l; i++) {
		if ((str.charCodeAt(i) & 0xff00) != 0) {
			blen ++;
		}
		blen ++;
	}
	if (blen > maxlen || blen < minlen) {
		return false;
	}
	return true;
}