Introduction

<script type="text/javascript">
// Global Config
var dsConfig = {
	token: "Insert Token Here",
	connectionErrorsPassValidations: false,
	highlightSuccess: true, // If true valid emails/number inputs will appear with a green border
	allowTemporaryErrors: false, // Can be risky. In a small minority of cases, this could allow invalid numbers/emails to be returned as valid
    email: 
	{
        enabled: true,
        msg: "Email address is invalid",
		allowDisposable: false,
    },
    mobile: 
	{
        enabled: true,
        msg: "Phone number is invalid"
    },
	landline: // UK ONLY
	{
        enabled: true,
        msg: "Phone number is invalid"			
	}
};
	
// DO NOT EDIT BELOW THIS LINE
var errorToValidationResult = {
	'-99': false,	// Bad password or username
	'-98': false,	// Insufficient credit
	'-97': dsConfig.allowTemporaryErrors ? true : false,	// Please report to Liquid11
	'-96': false,  // Badly formatted or invalid number
	'-92': false, // Your account has exceeded that maximum number of lookups allowed for a non verified account, please contact support on 0207 856 0422
	'-90': dsConfig.allowTemporaryErrors ? true : false,	// You have hit your defined rate limit, please try again later.
	'-29': dsConfig.allowTemporaryErrors ? true : false, // The SMTP server was unavailable to process the request
	'-28': dsConfig.allowTemporaryErrors ? true : false, // The SMTP server returned an unexpected/invalid response
	'-27': dsConfig.allowTemporaryErrors ? true : false, // The SMTP session timed out
	'-26': dsConfig.allowTemporaryErrors ? true : false, // Could not connect to the SMTP server
	'-22': false, // The email address was rejected by the SMTP server and does not exist
	'-21': false, // The domain name either does not exist or has not been configured to receive email		
	'-12': dsConfig.allowTemporaryErrors ? true : false,	// Network unreachable at this time, please report to Liquid11
	'-11': dsConfig.allowTemporaryErrors ? true : false,	// Unable to verify, handset unavailable at the time of request
	'-10': dsConfig.allowTemporaryErrors ? true : false,	// Unable to verify, handset unavailable at the time of request
	'-8': false,  // Rejected by network
	'-7': dsConfig.allowTemporaryErrors ? true : false,	// Number is not voice or text enabled(eg possible data dongle)
	'-6': false,	// Requests to this number are limited(eg emergency services)
	'-5': dsConfig.allowTemporaryErrors ? true : false,	// Requests to this number are barred
	'-4': false,	// Number is not voice or text enabled(eg possible data dongle)
	'-3': false,	// Dead Number
	'-2': dsConfig.allowTemporaryErrors ? true : false,	// Please report to Liquid11
	'0': true    // OK
};

function validation(json) {
	var result = false;
	json = json.DataSoapAPIResponse;

	if (json.HLRResult) {
		if(json.HLRResult.ErrorCode) {
			var res = errorToValidationResult[String(json.HLRResult.ErrorCode)];
			result = res;				
		} else if (typeof json.HLRResult.On !== "undefined"){
			result = true;				
		}
	}

	if (json.LandlineLookupResult) {
		if(json.LandlineLookupResult.ErrorCode) {
			var res = errorToValidationResult[String(json.LandlineLookupResult.ErrorCode)];
			result = res;				
		} else if(typeof json.LandlineLookupResult.IsActive !== "undefined"){
			result = true;				
		}
	}

	if (json.EmailValidationResult) {
		if(json.EmailValidationResult.ErrorCode) {
			var res = errorToValidationResult[String(json.EmailValidationResult.ErrorCode)];
			result = res;				
		} else if (!json.EmailValidationResult.IsDisposable || json.EmailValidationResult.IsDisposable === dsConfig.email.allowDisposable){
			result = true;				
		}
	}

	if (json.ErrorCode) {
		var res = errorToValidationResult[String(json.ErrorCode)];
		result = res;
	}

	return result;
}

function performApiLookup(type, lookup, field) {
	try {
		var xhr = new XMLHttpRequest();
		xhr.onreadystatechange = function () {
			var res = this;
			if (res.readyState === 4) {
				xhr.onreadystatechange = null;
		
				if (res.status === 200) {
					var json = JSON.parse(res.response);						
					var isValid = validation(json);
						
					if(type === "Email")
						setRes({ field: field, valid: isValid, msg: isValid ? "" : dsConfig.email.msg, type: "email"});
					else if (type === "Hlr")
						setRes({ field: field, valid: isValid, msg: isValid ? "" : dsConfig.mobile.msg, type: "mobile" });
					else if (type === "Landline")
						setRes({ field: field, valid: isValid, msg: isValid ? "" : dsConfig.landline.msg, type: "landline" });
				} else {
					if(type === "Email")
						setRes({ field: field, valid: false, msg: dsConfig.email.msg, type: "email"});
					else if (type === "Hlr")
						setRes({ field: field, valid: false, msg: dsConfig.mobile.msg, type: "mobile" });
					else if (type === "Landline")
						setRes({ field: field, valid: false, msg: dsConfig.landline.msg, type: "landline" });
				}
			}
		};
		xhr.open("GET", "https://api.datasoap.co.uk/?lookup=" + lookup + "&type=" + type + "&output=JSON", true);
		xhr.setRequestHeader("Content-Type", "application/json");
		xhr.setRequestHeader("Authorization", "Token " + dsConfig.token);
		xhr.send();
	} catch (e) {
		if(type === "Email")
			setRes({ field: field, valid: false, msg: dsConfig.email.msg, type: "email" });
		else if (type === "Hlr")
			setRes({ field: field, valid: false, msg: dsConfig.mobile.msg, type: "mobile" });
		else if (type === "Landline")
			setRes({ field: field, valid: false, msg: dsConfig.landline.msg, type: "landline" });
	}
}

function dataSoap(field)
{
	lookup = field.value.trim();
	if (/^((?!\.)[\w-_.]*[^.])(@\w+)(\.\w+(\.\w+)?[^.\W])$/gm.exec(lookup) !== null) {
		// Email
		if(dsConfig.email.enabled)
			performApiLookup("Email", lookup, field);
	} else if (/^(([\+]447)|(07))[0-9]{9,11}$/mi.exec(lookup) !== null) {
		// Mobile
		if(dsConfig.mobile.enabled)
			performApiLookup("Hlr", lookup, field);					
	} else if (/^(([\+]44)|(0))[0-9]{9,11}$/mi.exec(lookup) !== null) {
		// Landline
		if(dsConfig.landline.enabled)
			performApiLookup("Landline", lookup, field);
	}
};

function setRes(res) {
    if (res.valid) {
        res.field.setCustomValidity("");
        res.field.classList.remove("dsError");	
		var errDiv = res.field.parentNode.getElementsByClassName("dsErrorText");			
		if(errDiv.length)
			errDiv[0].remove();
			
		if(dsConfig.highlightSuccess)
			res.field.classList.add("dsSuccess");
    }
    else {
        res.field.setCustomValidity(res.msg);    
        res.field.classList.add("dsError");
					
		if(dsConfig.highlightSuccess)
			res.field.classList.remove("dsSuccess");
    }
    
    res.field.reportValidity();
    
    return res;
}
    
function check(form){
	var inputs = jQuery('input', form);
	var valid = true;
	for(var i = 0; i < inputs.length; i++){
		if(inputs[i].classList.contains("dsError")){
			valid = false;
			var lookup = inputs[i].value;
				
			if (/^((?!\.)[\w-_.]*[^.])(@\w+)(\.\w+(\.\w+)?[^.\W])$/gm.exec(lookup) !== null) {
				// Email
				setRes({ field: inputs[i], valid: false, msg: dsConfig.email.msg, type: "email" });
			} else if (/^(([\+]447)|(07))[0-9]{9,11}$/mi.exec(lookup) !== null) {
				// Mobile
				setRes({ field: inputs[i], valid: false, msg: dsConfig.mobile.msg, type: "mobile" });
			} else if (/^(([\+]44)|(0))[0-9]{9,11}$/mi.exec(lookup) !== null) {
				// Landline
				setRes({ field: inputs[i], valid: false, msg: dsConfig.landline.msg, type: "landline" });
			}
		}
	}
    
	return valid;
}
	
jQuery(document).ready(function(){
	jQuery(function($) {
		var fm = jQuery("form");
		$(fm).each(function(i, form){
			var f = form.getElementsByTagName('input');
			for(var i=0; i < f.length; i++){
				var field = f[i];
				field.addEventListener('change', function(e){
					dataSoap(this);
				});
			}
			
			$(this).unbind('click tap touchstart').bind('click.formSubmit tap.formSubmit touchstart.formSubmit', function(e) {
				var valid = check(form);
				if(!valid){
					e.preventDefault();
					e.stopImmediatePropagation();
				}
			});
				
			$(this).unbind('keypress').bind('keypress.formSubmit', function(e) {
				if(e.which === 13 && e.target.nodeName.toLowerCase() !== 'textarea'){
					var valid = check(form);
					if(!valid){
						e.preventDefault();
						e.stopImmediatePropagation();
					}
				}
			});				
		});
	});
});	
</script>