D-Net

package eu.dnetlib.openaire.user.utils;

import org.apache.log4j.Logger;

/**

 * Created by sofia on 20/4/2018.

 */

public class InputValidator {

    private static Logger logger = Logger.getLogger(InputValidator.class);

    /*

         ^                # start-of-string

        (?=.*[0-9])       # a digit must occur at least once

        (?=.*[a-z])       # a lower case letter must occur at least once

        (?=.*[A-Z])       # an upper case letter must occur at least once

        (?=.*[@#$%^&+=])  # a special character must occur at least once. This has been removed.

                          # Please add if special character is needed.

        (?=\S+$)          # no whitespace allowed in the entire string

        .{6,}             # anything, at least six places though

        $                 # end-of-string

    */

    public static String validPassword = "^(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=\\S+$).{6,}$";

    /*

        ^[a-zA-Z0-9]            # starts with character or digit

        ^[a-zA-Z0-9\\.\\_\\-]   # contains only characters, numbers, underscores, hyphens, periods

        {4,150}                 # anything, at least eight places though

        $                       # end-of-string

    */

    public static String validUsername = "^[a-zA-Z0-9][a-zA-Z0-9\\.\\_\\-]{4,150}";

    /*

        ^[a-zA-Z0-9]            # starts with character or digit

    */

    public static String startsWith = "^[a-zA-Z0-9].*";

    /*

        "^[a-zA-Z0-9\\.\\_\\-]"  #contains only characters, numbers, underscores, hyphens, periods

    */

    public static String allowedChars = "^[a-zA-Z0-9\\.\\_\\-]";

    public static boolean isFilled(String input) {

        return (input != null && !input.isEmpty());

    }

    public static boolean isValidPassword(String password) {

        return password.matches(validPassword);

    }

    public static boolean isValidUsername(String username) {

        return username.matches(validUsername);

    }

    public static boolean startsWithLetterOrDigit(String username) {

        return username.matches(startsWith);

    }

    public static boolean containsOnlyAllowedChars(String username) {

        return username.matches(allowedChars);

    }

    public static boolean containsLessCharsThan(int count, String input) {

        return (input.length() < count);

    }

    public static boolean containsMoreCharsThan(int count, String input) {

        return (input.length() > count);

    }

}