Create fnbpasswordvalidator.js

fnbpasswordvalidator.js

@@ -0,0 +1,86 @@
+var passwordValidator = function(password, options) {
+
+	var min = 8;	// Password max length
+	var max = 255;	// Password min length
+	var numbers = true;
+	var uppercase = true;
+	var lowercase = true;
+	var specialCharacters = true;
+	var prohibitedWords = undefined;
+
+	if (typeof(options) === 'object') {
+
+		min = options.min || min;
+		max = options.max || max;
+		numbers = options.numbers || numbers;
+		uppercase = options.uppercase || uppercase;
+		lowercase = options.lowercase || lowercase;
+		specialCharacters = options.specialCharacters || specialCharacters;
+		prohibitedWords = options.prohibitedWords || prohibitedWords;
+	}
+
+	if (!password) {
+		return {valid: false, message: "Password undefined."};
+	}
+
+	if (password.length < min) {
+		return {valid: false, message: "Password must be at least " + min + " chatacters long."};
+	}
+
+	if (password.length > max) {
+		return {valid: false, message: "Password must be no longer than " + max + " chatacters long."};
+	}
+
+	if (!hasLowerCase(password) && lowercase) {
+		return {valid: false, message: "Password must have at least one lowercase character."};
+	}
+
+	if (!hasUpperCase(password) && uppercase) {
+		return {valid: false, message: "Password must have at least one uppercase character."};
+	}
+
+	if(!hasSpecialCharacters(password) && specialCharacters) {
+		return {valid: false, message: "Password must have at least one special character."};
+	}
+
+	if(!hasNumber(password) && numbers) {
+		return {valid: false, message: "Password must have at least one number."};
+	}
+
+	if(! (prohibitedWords == undefined) && hasProhibitedWord(password, prohibitedWords).result) {
+		var word = hasProhibitedWord(password, prohibitedWords).word;
+		return {valid: false, message: "Password contains the invalid word: " + word};
+	}
+
+	return {valid: true, message: "Password is valid."};
+}
+
+var hasLowerCase = function(string) {
+	return string.toUpperCase() !== string;
+}
+
+var hasUpperCase = function(string) {
+	return string.toLowerCase() !== string;
+}
+
+var hasSpecialCharacters = function(string) {
+	return /[~`!@#$%\^&*+=\-\[\]\\';,/{}|\\":<>\?]/g.test(string);
+}
+
+var hasNumber = function(string) {
+	 return /[0-9]/.test(string); 
+}
+
+var hasProhibitedWord = function(string, prohibitedWords) {
+
+	var lowerCaseString = string.toLowerCase();
+
+	for (var i = prohibitedWords.length - 1; i >= 0; i--) {
+
+		if (lowerCaseString.indexOf(prohibitedWords[i].toLowerCase()) != -1) {
+			return {result: true, word: prohibitedWords[i]};
+		}
+	}
+
+	return {result: false};
+}