Regular Expressions for IP address

[Nandini DM]

Hi,

Regular expression to check below points 

1)Field validation to check IP address should not be more than 3 digits if user trying to enter IP range max 255 it should throw an error. ex(255.255.255.255)

2)field should also check, if user try to enter IP address along with slash number which should not exceed more than 32. ex( 10.111.11.111/11) (after slash, number should not be more than 32)

Kindly help!

Thanks.

[Mark Manders]

This should get you started:

function validateIPAddress(ipAddress) {
    var regex = /^((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.){3}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])(/([1-9]|[12][0-9]|3[0-2]))?$/;
    return regex.test(ipAddress);
}

[Rupanjani · Accepted solution]

Hi @Nandini DM ,

Write an onChange Client Script on the field.

Assuming field name as - ip_address, below script is written. Tried on PDI and is working as expected.

Change ip_address with actual field name and check

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue === '') {
        return;
    }

	var ipRegex = new RegExp('^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$');
	var regex = new RegExp('^(?:[0-9]|[1-2][0-9]|3[0-2])$');
     
    var isValidIp = '';
	var isSubnet = '';
	isValidIp = ipRegex.test(newValue);

	var splitip = '';
    var ipCheck = '';
    var subnetCheck = '';

	if (newValue.indexOf('/') != -1) {
        splitip = newValue.split('/');
        ipCheck = splitip[0];
        subnetCheck = splitip[1];
		isValidIp = ipRegex.test(ipCheck);
		isSubnet =  regex.test(subnetCheck);
    }	

    if (!isValidIp) {
        g_form.showFieldMsg('ip_address', 'Invalid IP', 'error');
    } else if(!isSubnet && subnetCheck != ''){
		g_form.showFieldMsg('ip_address', 'Invalid Subnet', 'error');
	} 
}

[Nandini DM]

Hi @Rupanjani 
This is working all good , but if I need to add one more or condition to add URL like (facebook.com, google.com)
How should I adjust the code?

[Rupanjani]

Hi @Nandini DM , 

Can you elaborate the URL condition, when it should be checked.

And if the above solution has helped you. Please mark it Helpful and mark it as solution.