Unable to decompose a URL to get the parameters

[ArpitaVK]

Hello, I am trying to decompose a URL and get its parameters. I was able to get the URL using catalog client script. In that used URL(top.location).

Also, I was able to get the rest of the required parameters. But there is one parameter 'url' in that URL. I am getting null value for it even though it is present in the URL. How to get that parameter value? 

here is the sample URL: https://instance_name.service-now.com/sp?id=sc_cat_item&sys_id=sample_sys_id&sysparm_category=category_sys_id%3Furl%3Dhttp:%2F%2Fsample_url%2Fhttp-post%2F&referer=&reason=abc&reasoncode=xyz

[dgarad]

function onLoad() {

    var url = getParameterValue('url');
    var blockReason = getParameterValue('reason');
    var reasonCode = getParameterValue('reasoncode');
    var action = getParameterValue('action');
    var urlCategory = getParameterValue('cat');   

    var desc = 'Block Reason: ' + blockReason + '\n Reason Code: ' + reasonCode + '\n Action: ' + action + '\n URL Category: ' + urlCategory;

    var shortDesc = 'url = ' + url;

    g_form.setValue('short_description', shortDesc);
    g_form.setValue('description', desc);

}

function getParameterValue(name) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regexS = "[\\?&]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(top.location);
    if (results == null) {
        return "";
    } else {
        return unescape(results[1]);
    }
}

}

 try the above code.

[ArpitaVK]

Hi @dgarad 

this is not working for me.

[dgarad]

can you share the URL  you try.

[dgarad · Accepted solution]

Hi @ArpitaVK 

 I have tried the URL and code it's working for me.

 https://instance_name.service-now.com/sp?id=sc_cat_item&sys_id=bd0c5e6a97040210b958f84de053af8c&sysparm_category=e15706fc0a0a0aa7007fc21e1ab70c2f&url=http:%2F%2Fsample_url%2Fhttp-post%2F&referer=&reason=abc&reasoncode=xyz

function onLoad() {
   //Type appropriate comment here, and begin script below
   
   var url = getParameterValue('url');
   //alert(url);
    var blockReason = getParameterValue('reason');
    var reasonCode = getParameterValue('reasoncode');
    var action = getParameterValue('action');
    var urlCategory = getParameterValue('sysparm_category');   

    var desc = 'Block Reason: ' + blockReason + '\n Reason Code: ' + reasonCode + '\n Action: ' + action + '\n URL Category: ' + urlCategory;

    var shortDesc = 'url = ' + url;
	alert("desc:"+"\n"+desc  +"\n"+"shortDesc :"+shortDesc);

    //g_form.setValue('short_description', shortDesc);
   // g_form.setValue('description', desc);

}

function getParameterValue(name) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regexS = "[\\?&]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(top.location);
    if (results == null) {
        return "";
    } else {
        return unescape(results[1]);
    }

[ArpitaVK]

@dgarad Thank you so much! This works for me. The URL I was using had '%3Furl%3D' instead of '&url='. That's why it was not getting decomposed.

Also, on a side note, 'unescape()' is deprecated. Instead, we can use 'decodeURIComponent()'.