package net.mindoverflow.webmarker.utils.security;

public class SafetyCheck {

    public static boolean isSafeUsername(String username)
    {
        // todo: allow configuration
        if(!username.matches("[a-zA-Z0-9]*")) return false;
        if(username.length() > 15) return false;
        if(username.length() < 3) return false;
        if(username.equalsIgnoreCase("null")) return false;

        return true;
    }

    public static boolean isSafePassword(String password)
    {
        if(password.length() < 6) return false;
        if(password.getBytes().length > 71) return false; // see https://github.com/patrickfav/bcrypt#handling-for-overlong-passwords

        // todo: more password security

        return true;
    }

    public static boolean isValidEncoding(String encoding)
    {
        if(encoding.equalsIgnoreCase("base64")) return true;
        if(encoding.equalsIgnoreCase("plaintext")) return true;

        return false;
    }
}