Check a text field in a form for acceptable URL's

[Anonymous]

Greetings,

I have a Marketo form with one field called sharedURL. I set this as a text field because the URL field is too restrictive, as you may have guest it is a field which allows people to input a URL. The field should only accept certain domains before moving on to the defined Landing page. Lets assume the only acceptable domains are www.marketo.com, http://www.marketo.com, https://www.marketo.com etc (all variations of the domain). I looked at multiple suggested solutions on various external sites and marketo sites but couldnt manage to tweak the code to fit my requirement. This is what I got (inserted in the HTML in a guided landing page template) my Form and field details are (if its needed). My solution did not work... any help appreciated....

"Id":6466,"Name":"sharedURL","Datatype":"string","Maxlength":512,"

<script>

(function (){

// Please include the url domains you would like to block in this list

var validDomains = [

'https://info.marketo.com',

'https://www.marketo.com',

'http://www.marketo.com',

'info.marketo.com',

'www.marketo.com',    

],

MktoForms2.whenReady(function (form){

form.onValidate(function(){

var url = form.vals().sharedURL;

if(url){

if(!isurlGood(url)) {

form.submitable(false);

var urlElem = form.getFormElem().find("#sharedURL");

form.showErrorMessage("You must use an approved Domain.", urlElem);

}else{

form.submitable(true);

}

}

});

});

function isurlGood(url) {

for(var i=0; i < validDomains.length; i++) {

var domain = validDomains[i];

if (url.indexOf(domain) != -1) {

return false;

}

}

return true;

}

})();

</script>

[SanfordWhiteman]

function hostnameInList( url, list ) {
    var loc = document.createElement('a');
    loc.href = /^https?:\/\//.test(url)
      ? url
      : 'https://' + url;
    return !!list.filter( function(itm){
      return loc.hostname == itm;
    }).length;
}

Then

var allowedHostnames = ['info.example.com','marketo.com'];
hostnameInList( 'https://info.example.com/', allowedHostnames ); // true 
hostnameInList( 'marketo.com#myhash', allowedHostnames ); // true 
hostnameInList( 'http://marketo.com/?somequery', allowedHostnames ); // true
hostnameInList( 'https://example.com', allowedHostnames ); // false
hostnameInList( 'example.com/?somequery', allowedHostnames ); // false

(Array#filter is IE9+ so if your site still needs to support IE8 as I recall from some other posts, add a polyfill.)

MktoForms2 :: URL Hostname in Allowed List

[Anonymous]

The Wizard of Marketo has struck again.... Perfecto