utilvalidate.java

一个非常好的FRAMWRK!是一个外国组织做的!不!

            return false;
    }

    /** isTime returns true if string argument time forms a valid time. */
    public static boolean isTime(String time) {
        if (isEmpty(time)) return defaultEmptyOK;

        String hour;
        String minute;
        String second;

        int timeColon1 = time.indexOf(":");
        int timeColon2 = time.lastIndexOf(":");

        if (timeColon1 <= 0) return false;
        hour = time.substring(0, timeColon1);
        if (timeColon1 == timeColon2) {
            minute = time.substring(timeColon1 + 1);
            second = "0";
        } else {
            minute = time.substring(timeColon1 + 1, timeColon2);
            second = time.substring(timeColon2 + 1);
        }
        return isTime(hour, minute, second);
    }

    /** Checks credit card number with Luhn Mod-10 test
     *
     * @param stPassed a string representing a credit card number
     * @return true, if the credit card number passes the Luhn Mod-10 test, false otherwise
     */
    public static boolean isCreditCard(String stPassed) {
        if (isEmpty(stPassed)) return defaultEmptyOK;
        String st = stripCharsInBag(stPassed, creditCardDelimiters);

        int sum = 0;
        int mul = 1;
        int l = st.length();

        // Encoding only works on cards with less than 19 digits
        if (l > 19) return (false);
        for (int i = 0; i < l; i++) {
            String digit = st.substring(l - i - 1, l - i);
            int tproduct = 0;

            try {
                tproduct = Integer.parseInt(digit, 10) * mul;
            } catch (Exception e) {
                Debug.logWarning(e.getMessage());
                return false;
            }
            if (tproduct >= 10)
                sum += (tproduct % 10) + 1;
            else
                sum += tproduct;
            if (mul == 1)
                mul++;
            else
                mul--;
        }
        // Uncomment the following line to help create credit card numbers
        // 1. Create a dummy number with a 0 as the last digit
        // 2. Examine the sum written out
        // 3. Replace the last digit with the difference between the sum and
        // the next multiple of 10.

        // document.writeln("<BR>Sum      = ",sum,"<BR>");
        // alert("Sum      = " + sum);

        if ((sum % 10) == 0)
            return true;
        else
            return false;
    }

    /** Checks to see if the cc number is a valid Visa number
     *
     * @param cc a string representing a credit card number; Sample number: 4111 1111 1111 1111(16 digits)
     * @return true, if the credit card number is a valid VISA number, false otherwise
     */
    public static boolean isVisa(String cc) {
        if (((cc.length() == 16) || (cc.length() == 13)) && (cc.substring(0, 1).equals("4")))
            return isCreditCard(cc);
        return false;
    }

    /** Checks to see if the cc number is a valid Master Card number
     *
     * @param cc a string representing a credit card number; Sample number: 5500 0000 0000 0004(16 digits)
     * @return true, if the credit card number is a valid MasterCard  number, false otherwise
     */
    public static boolean isMasterCard(String cc) {
        int firstdig = Integer.parseInt(cc.substring(0, 1));
        int seconddig = Integer.parseInt(cc.substring(1, 2));

        if ((cc.length() == 16) && (firstdig == 5) && ((seconddig >= 1) && (seconddig <= 5)))
            return isCreditCard(cc);
        return false;

    }

    /** Checks to see if the cc number is a valid American Express number
     *   @param    cc - a string representing a credit card number; Sample number: 340000000000009(15 digits)
     *   @return  true, if the credit card number is a valid American Express number, false otherwise
     */
    public static boolean isAmericanExpress(String cc) {
        int firstdig = Integer.parseInt(cc.substring(0, 1));
        int seconddig = Integer.parseInt(cc.substring(1, 2));

        if ((cc.length() == 15) && (firstdig == 3) && ((seconddig == 4) || (seconddig == 7)))
            return isCreditCard(cc);
        return false;

    }

    /** Checks to see if the cc number is a valid Diners Club number
     *   @param    cc - a string representing a credit card number; Sample number: 30000000000004(14 digits)
     *   @return  true, if the credit card number is a valid Diner's Club number, false otherwise
     */
    public static boolean isDinersClub(String cc) {
        int firstdig = Integer.parseInt(cc.substring(0, 1));
        int seconddig = Integer.parseInt(cc.substring(1, 2));

        if ((cc.length() == 14) && (firstdig == 3) && ((seconddig == 0) || (seconddig == 6) || (seconddig == 8)))
            return isCreditCard(cc);
        return false;
    }

    /** Checks to see if the cc number is a valid Carte Blanche number
     *   @param    cc - a string representing a credit card number; Sample number: 30000000000004(14 digits)
     *   @return  true, if the credit card number is a valid Carte Blanche number, false otherwise
     */
    public static boolean isCarteBlanche(String cc) {
        return isDinersClub(cc);
    }

    /** Checks to see if the cc number is a valid Discover number
     *   @param    cc - a string representing a credit card number; Sample number: 6011000000000004(16 digits)
     *   @return  true, if the credit card number is a valid Discover card number, false otherwise
     */
    public static boolean isDiscover(String cc) {
        String first4digs = cc.substring(0, 4);

        if ((cc.length() == 16) && (first4digs.equals("6011")))
            return isCreditCard(cc);
        return false;
    }

    /** Checks to see if the cc number is a valid EnRoute number
     *   @param    cc - a string representing a credit card number; Sample number: 201400000000009(15 digits)
     *   @return  true, if the credit card number is a valid enRoute card number, false, otherwise
     */
    public static boolean isEnRoute(String cc) {
        String first4digs = cc.substring(0, 4);

        if ((cc.length() == 15) && (first4digs.equals("2014") || first4digs.equals("2149")))
            return isCreditCard(cc);
        return false;
    }

    /** Checks to see if the cc number is a valid JCB number
     *   @param     cc - a string representing a credit card number; Sample number: 3088000000000009(16 digits)
     *   @return  true, if the credit card number is a valid JCB card number, false otherwise
     */
    public static boolean isJCB(String cc) {
        String first4digs = cc.substring(0, 4);

        if ((cc.length() == 16) &&
            (first4digs.equals("3088") ||
                first4digs.equals("3096") ||
                first4digs.equals("3112") ||
                first4digs.equals("3158") ||
                first4digs.equals("3337") ||
                first4digs.equals("3528")))
            return isCreditCard(cc);
        return false;
    }

    /** Checks to see if the cc number is a valid number for any accepted credit card
     *   @param     ccPassed - a string representing a credit card number
     *   @return  true, if the credit card number is any valid credit card number for any of the accepted card types, false otherwise
     */
    public static boolean isAnyCard(String ccPassed) {
        if (isEmpty(ccPassed)) return defaultEmptyOK;

        String cc = stripCharsInBag(ccPassed, creditCardDelimiters);

        if (!isCreditCard(cc)) return false;
        if (isMasterCard(cc) || isVisa(cc) || isAmericanExpress(cc) || isDinersClub(cc) ||
                isDiscover(cc) || isEnRoute(cc) || isJCB(cc))
            return true;
        return false;
    }

    /** Checks to see if the cc number is a valid number for any accepted credit card, and return the name of that type
     *   @param     ccPassed - a string representing a credit card number
     *   @return  true, if the credit card number is any valid credit card number for any of the accepted card types, false otherwise
     */
    public static String getCardType(String ccPassed) {
        if (isEmpty(ccPassed)) return "Unknown";
        String cc = stripCharsInBag(ccPassed, creditCardDelimiters);

        if (!isCreditCard(cc)) return "Unknown";

        if (isMasterCard(cc)) return "MasterCard";
        if (isVisa(cc)) return "Visa";
        if (isAmericanExpress(cc)) return "AmericanExpress";
        if (isDinersClub(cc)) return "DinersClub";
        if (isDiscover(cc)) return "Discover";
        if (isEnRoute(cc)) return "EnRoute";
        if (isJCB(cc)) return "JCB";
        return "Unknown";
    }

    /** Checks to see if the cc number is a valid number for the specified type
     *   @param    cardType - a string representing the credit card type
     *   @param    cardNumberPassed - a string representing a credit card number
     *   @return  true, if the credit card number is valid for the particular credit card type given in "cardType", false otherwise
     */
    public static boolean isCardMatch(String cardType, String cardNumberPassed) {
        if (isEmpty(cardType)) return defaultEmptyOK;
        if (isEmpty(cardNumberPassed)) return defaultEmptyOK;
        String cardNumber = stripCharsInBag(cardNumberPassed, creditCardDelimiters);

        if ((cardType.equalsIgnoreCase("VISA")) && (isVisa(cardNumber))) return true;
        if ((cardType.equalsIgnoreCase("MASTERCARD")) && (isMasterCard(cardNumber))) return true;
        if (((cardType.equalsIgnoreCase("AMERICANEXPRESS")) || (cardType.equalsIgnoreCase("AMEX"))) && (isAmericanExpress(cardNumber))) return true;
        if ((cardType.equalsIgnoreCase("DISCOVER")) && (isDiscover(cardNumber))) return true;
        if ((cardType.equalsIgnoreCase("JCB")) && (isJCB(cardNumber))) return true;
        if (((cardType.equalsIgnoreCase("DINERSCLUB")) || (cardType.equalsIgnoreCase("DINERS"))) && (isDinersClub(cardNumber))) return true;
        if ((cardType.equalsIgnoreCase("CARTEBLANCHE")) && (isCarteBlanche(cardNumber))) return true;
        if ((cardType.equalsIgnoreCase("ENROUTE")) && (isEnRoute(cardNumber))) return true;
        return false;
    }


    /** isNotPoBox returns true if address argument does not contain anything that looks like a a PO Box. */
    public static boolean isNotPoBox(String s) {
        if (isEmpty(s)) return defaultEmptyOK;

        // strings to check from Greg's program
        // "P.O. B"
        // "P.o.B"
        // "P.O B"
        // "PO. B"
        // "P O B"
        // "PO B"
        // "P.0. B"
        // "P0 B"

        String sl = s.toLowerCase();
        if (sl.indexOf("p.o. b") != -1) return false;
        if (sl.indexOf("p.o.b") != -1) return false;
        if (sl.indexOf("p.o b") != -1) return false;
        if (sl.indexOf("p o b") != -1) return false;
        if (sl.indexOf("po b") != -1) return false;
        if (sl.indexOf("pobox") != -1) return false;
        if (sl.indexOf("po#") != -1) return false;
        if (sl.indexOf("po #") != -1) return false;

        // now with 0's for them sneaky folks
        if (sl.indexOf("p.0. b") != -1) return false;
        if (sl.indexOf("p.0.b") != -1) return false;
        if (sl.indexOf("p.0 b") != -1) return false;
        if (sl.indexOf("p 0 b") != -1) return false;
        if (sl.indexOf("p0 b") != -1) return false;
        if (sl.indexOf("p0box") != -1) return false;
        if (sl.indexOf("p0#") != -1) return false;
        if (sl.indexOf("p0 #") != -1) return false;
        return true;
    }
}