spark-oauth-sample/public/js/adminSignUp.js

This is a Spark OAuth Sample. It contains a) web interface of requesting token, b) a token management center.

window.onload = function () {
	// validate input in browser side.
	var fm = document.getElementsByTagName('form')[0];

	fm.onsubmit = function () {
		
		// A function for confirming with user when user trying to create a new administrator.
		if (!confirm('Are you sure you want to submit to create the user?')) {
			return false;
		}
		
		var defaultValueUsername = fm.username.defaultValue;
		var defaultValuePassword = fm.password.defaultValue;
		var defaultValueRe_password = fm.re_password.defaultValue;
		var defaultValueEmail = fm.email.defaultValue;
		
		var currentValueUsername = fm.username.value;
		var currentValuePassword = fm.password.value;
		var currentValueRe_password = fm.re_password.value;
		var currentValueEmail = fm.email.value;
		
		// If there is no change to the form, then no need to submit form
		if((defaultValueUsername === currentValueUsername) && (defaultValuePassword === currentValuePassword) && (defaultValueRe_password === currentValueRe_password) && (defaultValueEmail === currentValueEmail)) {
			alert('You have not changed anything to the profile. No need to submit!');
			return false;
		}
		
		// remove leading and tailing spaces if have.
		var clearSpaces = function (string) {
			var pattern1 = /^\s+/;
			var pattern2 = /\s+$/;
			string = string.replace(pattern1, '').replace(pattern2, '');
			return string;
		};

		var username = clearSpaces(fm.username.value);
		var password = clearSpaces(fm.password.value);
		var re_password = clearSpaces(fm.re_password.value);
		var email = clearSpaces(fm.email.value);

		// username validation
		if (!(/^[\w]{3,20}$/.test(username))) {
			alert('Only letter, number and underscore are allowed in username, within 3~20 characters!');
			fm.username.value = '';
			fm.username.focus();
			return false;
		}
		
		// password length validation
		if(password.length < 6) {
			alert('The length of password must be longer than 6 characters!');
			fm.password.value = '';
			fm.re_password.value = '';
			fm.password.focus();
			return false;			
		}

		// password validation
		if (password !== re_password) {
			alert('The passwords you input do not match!');
			fm.password.value = '';
			fm.re_password.value = '';
			fm.password.focus();
			return false;
		}

		// simple email validation
		if (!(/^([\w\.\-]+)@([\w\.\-]+)\.([a-zA-Z]{2,4})$/.test(email))) {
			alert('The email format is incorrect!');
			fm.email.value = '';
			fm.email.focus();
			return false;
		}

		return true;
	};	
	
	// forbid the right-click
	document.oncontextmenu = function (e) {
		return false;
	};
	
};