consumerportal/js/src/services/generic/passwordstrength.ts

mydna Custimised for you

/// <reference path="../../includes.ts" />

module passwordStrengthSrvc{
	export interface IPasswordStrengthService {
		checkStrength(password: any): any;
	}


	export class PasswordStrengthService implements IPasswordStrengthService {
		strengthObj: any;
		constructor() {
			var vm = this;
			vm.strengthObj = {};
		}
		
		checkStrength(password) {

			if (password == null || password.length == 0){
				this.strengthObj = {
					className: "",
					userText: ""
				}
				return this.strengthObj;			}

			if (password.length < 8) {
				this.strengthObj = {
					className: "short",
					userText: "Too short"
				}
				return this.strengthObj;
			}

			var passwordStrengthValue = 0;
			
			var specialCharacters = /[$-/:-?{-~!"^_`\[\]]/g;

			if (/[0-9]+/.test(password)){
				passwordStrengthValue++;
			}
			if (/[a-z]+/.test(password)) {
				passwordStrengthValue++;
			}
			if (/[A-Z]+/.test(password)){
				passwordStrengthValue++;
			}
			if (specialCharacters.test(password)) {
				passwordStrengthValue++;
			}
			
			if(passwordStrengthValue <= 1){
				this.strengthObj = {
					className: "weak",
					userText: "Weak"
				}
			}
			else if (passwordStrengthValue == 2) {
				this.strengthObj = {
					className: "medium",
					userText: "Better"
				}
			}
			else if (passwordStrengthValue == 3) {
				this.strengthObj = {
					className: "medium",
					userText: "Medium"
				}
			}
			else if (passwordStrengthValue >= 4) {
				this.strengthObj = {
					className: "strong",
					userText: "Strong"
				}
			}
			return this.strengthObj;

		}

	}

	angular.module('passwordStrengthSrvc', []).service('passwordStrengthSrvc', PasswordStrengthService);
}