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Client Validation - Restrict Content not working?

Thread began 11/20/2012 3:12 am by Nathon Jones Web Design | Last modified 11/20/2012 10:45 am by Nathon Jones Web Design | 1740 views | 5 replies

Nathon Jones Web Design

Client Validation - Restrict Content not working?

We have two simple client validations on our form, one to check that caption text has been entered for a title (form field name="slideshowtitle") and one to check that neither http:// or https:// has been entered in a URL (form field name="slideshowlinkout"). The URL field can, however, be left blank.

The validation is working for the caption text - a value must be entered - however the URL field is allowing submission of http:// and/or .

Here's our form:

<form action="confirm-slideshow.asp" method="post" enctype="multipart/form-data" name="addslideshowFORM" id="addslideshowFORM" onsubmit="WAValidateRQ(document.forms[0].slideshowtitle,'You need to enter some text to accompany your image.',document.forms[0].slideshowtitle,0,true,'text');WAValidateRT(document.forms[0].slideshowlinkout,document.forms[0].slideshowlinkout.value,'You do not need to enter http:// or https:// in your website address.','%20http://%20|, %20https://%20|',document.forms[0].slideshowlinkout,0,false);WAAlertErrors('Please correct the following errors:','',true,document.addslideshowFORM,false);return document.MM_returnValue">
<input name="aID" type="hidden" id="aID" value="<%=cStr(Request.Form("aID"))%>" />
<input name="gID" type="hidden" id="gID" value="<%=cStr(Request.Form("gID"))%>" />

<div>
<label for="slideshowtitle">Caption text for the image:</label>
<input name="slideshowtitle" id="slideshowtitle" type="text" size="25" maxlength="100" tabindex="1" />
</div>

<div>
<label for="slideshowlinkout">Web address the image should link to: <span class="textgrey">(optional)</span></label>
<table width="100%" cellspacing="0" cellpadding="0">
<tr>
<td width="8%" class="textgrey">http://</td>
<td valign="middle"><input name="slideshowlinkout" id="slideshowlinkout" type="text" size="25" maxlength="75" tabindex="2" /></td>
</tr>
</table>
</div>

<div>
<label for="slideshowimg">Select an image (500px x 375px - <a href="help-imagesizes.asp">Image Guidelines</a>):</label>
<input name="slideshowimg" type="file" id="slideshowimg" style="height:35px;width:450px;background-color:#FFFFFF;" tabindex="3" />
</div>

<p><input type="submit" name="Submit" value="Proceed" class="Submitbtn" tabindex="4" /></p>
</form>

...and here is our validation code:

<script type="text/javascript">
<!--
function WAtrimIt(theString,leaveLeft,leaveRight) {
if (!leaveLeft) {
while (theString.charAt(0) == " ")
theString = theString.substring(1);
}
if (!leaveRight) {
while (theString.charAt(theString.length-1) == " ")
theString = theString.substring(0,theString.length-1);
}
return theString;
}

function WAFV_GetValueFromInputType(formElement,inputType,trimWhite) {
var value="";
if (inputType == "select") {
if (formElement.selectedIndex != -1 && formElement.options[formElement.selectedIndex].value && formElement.options[formElement.selectedIndex].value != "") {
value = formElement.options[formElement.selectedIndex].value;
}
}
else if (inputType == "checkbox") {
if (formElement.length) {
for (var x=0; x<formElement.length ; x++) {
if (formElement[x].checked && formElement[x].value!="") {
value = formElement[x].value;
break;
}
}
}
else if (formElement.checked)
value = formElement.value;
}
else if (inputType == "radio") {
if (formElement.length) {
for (var x=0; x<formElement.length; x++) {
if (formElement[x].checked && formElement[x].value!="") {
value = formElement[x].value;
break;
}
}
}
else if (formElement.checked)
value = formElement.value;
}
else if (inputType == "radiogroup") {
for (var x=0; x<formElement.length; x++) {
if (formElement[x].checked && formElement[x].value!="") {
value = formElement[x].value;
break;
}
}
}
else if (inputType == "iRite") {
var theEditor = FCKeditorAPI.GetInstance(formElement.name) ;
value = theEditor.GetXHTML(true);
}
else {
var value = formElement.value;
value=value.replace(/<p>(\&\#160\;)*<\/p>/,"");
}
if (trimWhite) {
value = WAtrimIt(value);
}
return value;
}

function WAAddError(formElement,errorMsg,focusIt,stopIt) {
if (document.WAFV_Error) {
document.WAFV_Error += "\n" + errorMsg;
}
else {
document.WAFV_Error = errorMsg;
}
if (!document.WAFV_InvalidArray) {
document.WAFV_InvalidArray = new Array();
}
document.WAFV_InvalidArray[document.WAFV_InvalidArray.length] = formElement;
if (focusIt && !document.WAFV_Focus) {
document.WAFV_Focus = focusIt;
}

if (stopIt == 1) {
document.WAFV_Stop = true;
}
else if (stopIt == 2) {
formElement.WAFV_Continue = true;
}
else if (stopIt == 3) {
formElement.WAFV_Stop = true;
formElement.WAFV_Continue = false;
}
}

function WAValidateRQ(formElement,errorMsg,focusIt,stopIt,trimWhite,inputType) {
var isValid = true;
if (formElement.length && inputType.toLowerCase()!="radio" && inputType.toLowerCase()!="select") formElement=formElement[0];
if (!document.WAFV_Stop && !formElement.WAFV_Stop) {
var value=WAFV_GetValueFromInputType(formElement,inputType,trimWhite);
if (value == "") {
isValid = false;
}
}
if (!isValid) {
WAAddError(formElement,errorMsg,focusIt,stopIt);
}
}

function WAValidateRT(formElement,value,errorMsg,notAllowed,focusIt,stopIt,required) {
var isValid = true;
var augValue = " " + value + " ";
var tempVal = augValue.toLowerCase();
if ((!document.WAFV_Stop && !formElement.WAFV_Stop) && !(!required && value=="")) {
var notAllowed = notAllowed.split(", ");
for (var x=0; x<notAllowed.length; x++) {
var notAllowedInfo = notAllowed[x].split("|");
notAllowedInfo[0] = unescape(notAllowedInfo[0]);
notAllowedInfo[1] = unescape(notAllowedInfo[1]);
while (tempVal.indexOf(notAllowedInfo[0].toLowerCase())>=0) {
isValid = false;
var theIndex = tempVal.indexOf(notAllowedInfo[0].toLowerCase())
tempVal = tempVal.substring(0,theIndex) + tempVal.substring(theIndex+notAllowedInfo[0].length);
if (notAllowedInfo[1]!="") {
theIndex = augValue.toLowerCase().indexOf(notAllowedInfo[0].toLowerCase())
augValue = augValue.substring(0,theIndex) + notAllowedInfo[1] + augValue.substring(theIndex+notAllowedInfo[0].length);
}
}
}
}
if (required && value=="")
isValid = false;
if (!isValid) {
WAAddError(formElement,errorMsg,focusIt,stopIt);
formElement.value = augValue.substring(1,augValue.length-1);
}
}

function WAAlertErrors(errorHead,errorFoot,setFocus,submitForm,allowOverride) {
if (!document.WAFV_StopAlert) {
document.WAFV_StopAlert = true;
if (document.WAFV_InvalidArray) {
document.WAFV_Stop = true;
var errorMsg = document.WAFV_Error;
if (errorHead!="")
errorMsg = errorHead + "\n" + errorMsg;
if (errorFoot!="")
errorMsg += "\n" + errorFoot;
document.MM_returnValue = false;
if (document.WAFV_Error!="") {
if (allowOverride) {
if (confirm(errorMsg.replace(/&quot;/g,'"'))) {
document.MM_returnValue = true;
return;
}
}
else {
alert(errorMsg.replace(/&quot;/g,'"'));
}
}
else if (submitForm)
submitForm.submit();
if (setFocus && document.WAFV_Focus) {
if (document.getElementById(document.WAFV_Focus.name+"___Config") && document.WAFV_Focus.type.toLowerCase() == "hidden") {
var theEditor = FCKeditorAPI.GetInstance(document.WAFV_Focus.name);
theEditor.EditorWindow.focus();
setTimeout("setTimeout('document.WAFV_Stop = false;document.WAFV_StopAlert = false;',1)",1);
}
else {
document.tempFocus = document.WAFV_Focus;
setTimeout("document.tempFocus.focus();setTimeout('document.WAFV_Stop = false;document.WAFV_StopAlert = false;',1)",1);
}
}
else {
document.WAFV_Stop = false;
document.WAFV_StopAlert = false;
}
for (var x=0; x<document.WAFV_InvalidArray.length; x++) {
document.WAFV_InvalidArray[x].WAFV_Stop = false;
}
}
else {
document.WAFV_Stop = false;
document.WAFV_StopAlert = false;
if (submitForm) {
submitForm.submit();
}
document.MM_returnValue = true;
}
document.WAFV_Focus = false;
document.WAFV_Error = false;
document.WAFV_InvalidArray = false;
}
}
//-->
</script>

Hope someone can spot the error as we've deleted and rebuilt the form 3 times now and are no further forward.

Thank you.
NJ

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