Link Moderator

public class LinkModerator
{
    string tld;
    List<string> whiteWebsiteList;
    public LinkModerator(List<string> whiteWebsiteList)
    {
        this.whiteWebsiteList = whiteWebsiteList;
        tld = topLevelDomains();
    }

    public boolean allow(String sender, String message)
    {
        boolean result = true;
        MatchCollection matches;
        Regex regex = new Regex("\\w+\\."+tld+("(/|\\s|$)"));
        if(regex.IsMatch(message);
        matches = regex.Matches(message);
        for(int i = 0; i < matches.Count; i++)
        {
            String s = matches[i];
            for(String whitewebsite : websiteWhiteList)
            {
                if(s.contains(whitewebsite))
                {
                    result = true;
                    break;
                }
                else
                {
                    result = false;
                }
            }
            //System.out.println((result?"":"dis")+"allowed");
        }
        return result;
    }

    private String topLevelDomains()
    {
        return "("+
            "ZW|"+
            "ZONE|"+
            "ZM|"+
            "ZA|"+
            "YT|"+
            "YOKOHAMA|"+
            "YE|"+
            "YACHTS|"+
            "XYZ|"+
            "XXX|"+
            "XN--ZFR164B|"+
            "XN--YGBI2AMMX|"+
            "XN--YFRO4I67O|"+
            "XN--XKC2DL3A5EE0H|"+
            "XN--XKC2AL3HYE2A|"+
            "XN--WGBL6A|"+
            "XN--WGBH1C|"+
            "XN--UNUP4Y|"+
            "XN--SES554G|"+
            "XN--S9BRJ9C|"+
            "XN--RHQV96G|"+
            "XN--Q9JYB4C|"+
            "XN--PGBS0DH|"+
            "XN--P1AI|"+
            "XN--OGBPF8FL|"+
            "XN--O3CW4H|"+
            "XN--NQV7FS00EMA|"+
            "XN--NQV7F|"+
            "XN--NGBC5AZD|"+
            "XN--MGBX4CD0AB|"+
            "XN--MGBERP4A5D4AR|"+
            "XN--MGBC0A9AZCG|"+
            "XN--MGBBH1A71E|"+
            "XN--MGBAYH7GPA|"+
            "XN--MGBAB2BD|"+
            "XN--MGBAAM7A8H|"+
            "XN--MGBA3A4F16A|"+
            "XN--MGB9AWBF|"+
            "XN--LGBBAT1AD8J|"+
            "XN--L1ACC|"+
            "XN--KPUT3I|"+
            "XN--KPRY57D|"+
            "XN--KPRW13D|"+
            "XN--J6W193G|"+
            "XN--J1AMH|"+
            "XN--IO0A7I|"+
            "XN--I1B6B1A6A2E|"+
            "XN--H2BRJ9C|"+
            "XN--GECRJ9C|"+
            "XN--FZC2C9E2C|"+
            "XN--FPCRJ9C3D|"+
            "XN--FIQZ9S|"+
            "XN--FIQS8S|"+
            "XN--FIQ64B|"+
            "XN--FIQ228C5HS|"+
            "XN--D1ACJ3B|"+
            "XN--CZRU2D|"+
            "XN--CZR694B|"+
            "XN--CLCHC0EA0B2G2A9GCD|"+
            "XN--CG4BKI|"+
            "XN--C1AVG|"+
            "XN--90A3AC|"+
            "XN--80ASWG|"+
            "XN--80ASEHDB|"+
            "XN--80AO21A|"+
            "XN--80ADXHKS|"+
            "XN--6QQ986B3XL|"+
            "XN--6FRZ82G|"+
            "XN--55QX5D|"+
            "XN--55QW42G|"+
            "XN--4GBRIM|"+
            "XN--45BRJ9C|"+
            "XN--3E0B707E|"+
            "XN--3DS443G|"+
            "XN--3BST00M|"+
            "WTF|"+
            "WTC|"+
            "WS|"+
            "WORKS|"+
            "WIKI|"+
            "WIEN|"+
            "WF|"+
            "WED|"+
            "WEBSITE|"+
            "WEBCAM|"+
            "WATCH|"+
            "WANG|"+
            "VU|"+
            "VOYAGE|"+
            "VOTO|"+
            "VOTING|"+
            "VOTE|"+
            "VODKA|"+
            "VN|"+
            "VLAANDEREN|"+
            "VISION|"+
            "VILLAS|"+
            "VIAJES|"+
            "VI|"+
            "VG|"+
            "VET|"+
            "VERSICHERUNG|"+
            "VENTURES|"+
            "VEGAS|"+
            "VE|"+
            "VC|"+
            "VACATIONS|"+
            "VA|"+
            "UZ|"+
            "UY|"+
            "US|"+
            "UNO|"+
            "UNIVERSITY|"+
            "UK|"+
            "UG|"+
            "UA|"+
            "TZ|"+
            "TW|"+
            "TV|"+
            "TT|"+
            "TRAVEL|"+
            "TRAINING|"+
            "TRADE|"+
            "TR|"+
            "TP|"+
            "TOYS|"+
            "TOWN|"+
            "TOOLS|"+
            "TOKYO|"+
            "TODAY|"+
            "TO|"+
            "TN|"+
            "TM|"+
            "TL|"+
            "TK|"+
            "TJ|"+
            "TIROL|"+
            "TIPS|"+
            "TIENDA|"+
            "TH|"+
            "TG|"+
            "TF|"+
            "TEL|"+
            "TECHNOLOGY|"+
            "TD|"+
            "TC|"+
            "TAX|"+
            "TATTOO|"+
            "SZ|"+
            "SYSTEMS|"+
            "SY|"+
            "SX|"+
            "SV|"+
            "SUZUKI|"+
            "SURGERY|"+
            "SURF|"+
            "SUPPORT|"+
            "SUPPLY|"+
            "SUPPLIES|"+
            "SU|"+
            "ST|"+
            "SR|"+
            "SPACE|"+
            "SOY|"+
            "SOLUTIONS|"+
            "SOLAR|"+
            "SOHU|"+
            "SOFTWARE|"+
            "SOCIAL|"+
            "SO|"+
            "SN|"+
            "SM|"+
            "SL|"+
            "SK|"+
            "SJ|"+
            "SINGLES|"+
            "SI|"+
            "SHOES|"+
            "SHIKSHA|"+
            "SH|"+
            "SG|"+
            "SEXY|"+
            "SERVICES|"+
            "SE|"+
            "SD|"+
            "SCOT|"+
            "SCHULE|"+
            "SCHMIDT|"+
            "SCB|"+
            "SC|"+
            "SB|"+
            "SAARLAND|"+
            "SA|"+
            "RYUKYU|"+
            "RW|"+
            "RUHR|"+
            "RU|"+
            "RS|"+
            "RODEO|"+
            "ROCKS|"+
            "RO|"+
            "RIO|"+
            "RICH|"+
            "REVIEWS|"+
            "REST|"+
            "REPUBLICAN|"+
            "REPORT|"+
            "REPAIR|"+
            "RENTALS|"+
            "REN|"+
            "REISEN|"+
            "REISE|"+
            "REHAB|"+
            "RED|"+
            "RECIPES|"+
            "RE|"+
            "QUEBEC|"+
            "QPON|"+
            "QA|"+
            "PY|"+
            "PW|"+
            "PUB|"+
            "PT|"+
            "PS|"+
            "PROPERTIES|"+
            "PRODUCTIONS|"+
            "PRO|"+
            "PRESS|"+
            "PR|"+
            "POST|"+
            "PN|"+
            "PM|"+
            "PLUMBING|"+
            "PLACE|"+
            "PL|"+
            "PK|"+
            "PINK|"+
            "PICTURES|"+
            "PICS|"+
            "PHYSIO|"+
            "PHOTOS|"+
            "PHOTOGRAPHY|"+
            "PHOTO|"+
            "PH|"+
            "PG|"+
            "PF|"+
            "PE|"+
            "PARTS|"+
            "PARTNERS|"+
            "PARIS|"+
            "PA|"+
            "OVH|"+
            "ORGANIC|"+
            "ORG|"+
            "ONL|"+
            "OM|"+
            "OKINAWA|"+
            "NZ|"+
            "NYC|"+
            "NU|"+
            "NRW|"+
            "NR|"+
            "NP|"+
            "NO|"+
            "NL|"+
            "NINJA|"+
            "NI|"+
            "NHK|"+
            "NG|"+
            "NF|"+
            "NEUSTAR|"+
            "NET|"+
            "NE|"+
            "NC|"+
            "NAVY|"+
            "NAME|"+
            "NAGOYA|"+
            "NA|"+
            "MZ|"+
            "MY|"+
            "MX|"+
            "MW|"+
            "MV|"+
            "MUSEUM|"+
            "MU|"+
            "MT|"+
            "MS|"+
            "MR|"+
            "MQ|"+
            "MP|"+
            "MOTORCYCLES|"+
            "MOSCOW|"+
            "MORTGAGE|"+
            "MONASH|"+
            "MOE|"+
            "MODA|"+
            "MOBI|"+
            "MO|"+
            "MN|"+
            "MM|"+
            "ML|"+
            "MK|"+
            "MINI|"+
            "MIL|"+
            "MIAMI|"+
            "MH|"+
            "MG|"+
            "MENU|"+
            "MELBOURNE|"+
            "MEET|"+
            "MEDIA|"+
            "ME|"+
            "MD|"+
            "MC|"+
            "MARKETING|"+
            "MARKET|"+
            "MANGO|"+
            "MANAGEMENT|"+
            "MAISON|"+
            "MA|"+
            "LY|"+
            "LV|"+
            "LUXURY|"+
            "LUXE|"+
            "LU|"+
            "LT|"+
            "LS|"+
            "LR|"+
            "LOTTO|"+
            "LONDON|"+
            "LOANS|"+
            "LK|"+
            "LINK|"+
            "LIMO|"+
            "LIMITED|"+
            "LIGHTING|"+
            "LIFE|"+
            "LI|"+
            "LEASE|"+
            "LC|"+
            "LB|"+
            "LAWYER|"+
            "LAND|"+
            "LA|"+
            "KZ|"+
            "KY|"+
            "KW|"+
            "KRED|"+
            "KR|"+
            "KP|"+
            "KOELN|"+
            "KN|"+
            "KM|"+
            "KIWI|"+
            "KITCHEN|"+
            "KIM|"+
            "KI|"+
            "KH|"+
            "KG|"+
            "KE|"+
            "KAUFEN|"+
            "JUEGOS|"+
            "JP|"+
            "JOBURG|"+
            "JOBS|"+
            "JO|"+
            "JM|"+
            "JETZT|"+
            "JE|"+
            "IT|"+
            "IS|"+
            "IR|"+
            "IQ|"+
            "IO|"+
            "INVESTMENTS|"+
            "INTERNATIONAL|"+
            "INT|"+
            "INSURE|"+
            "INSTITUTE|"+
            "INK|"+
            "INFO|"+
            "INDUSTRIES|"+
            "IN|"+
            "IMMOBILIEN|"+
            "IM|"+
            "IL|"+
            "IE|"+
            "ID|"+
            "HU|"+
            "HT|"+
            "HR|"+
            "HOUSE|"+
            "HOST|"+
            "HORSE|"+
            "HOMES|"+
            "HOLIDAY|"+
            "HOLDINGS|"+
            "HN|"+
            "HM|"+
            "HK|"+
            "HIV|"+
            "HIPHOP|"+
            "HAUS|"+
            "HAMBURG|"+
            "GY|"+
            "GW|"+
            "GURU|"+
            "GUITARS|"+
            "GUIDE|"+
            "GU|"+
            "GT|"+
            "GS|"+
            "GRIPE|"+
            "GREEN|"+
            "GRATIS|"+
            "GRAPHICS|"+
            "GR|"+
            "GQ|"+
            "GP|"+
            "GOV|"+
            "GOP|"+
            "GN|"+
            "GMO|"+
            "GM|"+
            "GLOBO|"+
            "GLOBAL|"+
            "GLASS|"+
            "GL|"+
            "GIVES|"+
            "GIFT|"+
            "GI|"+
            "GH|"+
            "GG|"+
            "GF|"+
            "GENT|"+
            "GE|"+
            "GD|"+
            "GB|"+
            "GALLERY|"+
            "GAL|"+
            "GA|"+
            "FUTBOL|"+
            "FURNITURE|"+
            "FUND|"+
            "FROGANS|"+
            "FR|"+
            "FOUNDATION|"+
            "FOO|"+
            "FO|"+
            "FM|"+
            "FLORIST|"+
            "FLIGHTS|"+
            "FK|"+
            "FJ|"+
            "FITNESS|"+
            "FISHING|"+
            "FISH|"+
            "FINANCIAL|"+
            "FINANCE|"+
            "FI|"+
            "FEEDBACK|"+
            "FARM|"+
            "FAIL|"+
            "EXPOSED|"+
            "EXPERT|"+
            "EXCHANGE|"+
            "EVENTS|"+
            "EUS|"+
            "EU|"+
            "ET|"+
            "ESTATE|"+
            "ES|"+
            "ER|"+
            "EQUIPMENT|"+
            "ENTERPRISES|"+
            "ENGINEERING|"+
            "ENGINEER|"+
            "EMAIL|"+
            "EG|"+
            "EE|"+
            "EDUCATION|"+
            "EDU|"+
            "EC|"+
            "DZ|"+
            "DURBAN|"+
            "DOMAINS|"+
            "DO|"+
            "DNP|"+
            "DM|"+
            "DK|"+
            "DJ|"+
            "DISCOUNT|"+
            "DIRECTORY|"+
            "DIRECT|"+
            "DIGITAL|"+
            "DIAMONDS|"+
            "DESI|"+
            "DENTIST|"+
            "DENTAL|"+
            "DEMOCRAT|"+
            "DEGREE|"+
            "DEALS|"+
            "DE|"+
            "DATING|"+
            "DANCE|"+
            "CZ|"+
            "CY|"+
            "CX|"+
            "CW|"+
            "CV|"+
            "CUISINELLA|"+
            "CU|"+
            "CRUISES|"+
            "CREDITCARD|"+
            "CREDIT|"+
            "CR|"+
            "COUNTRY|"+
            "COOP|"+
            "COOL|"+
            "COOKING|"+
            "CONTRACTORS|"+
            "CONSULTING|"+
            "CONSTRUCTION|"+
            "CONDOS|"+
            "COMPUTER|"+
            "COMPANY|"+
            "COMMUNITY|"+
            "COM|"+
            "COLOGNE|"+
            "COLLEGE|"+
            "COFFEE|"+
            "CODES|"+
            "CO|"+
            "CN|"+
            "CM|"+
            "CLUB|"+
            "CLOTHING|"+
            "CLINIC|"+
            "CLEANING|"+
            "CLAIMS|"+
            "CL|"+
            "CK|"+
            "CITY|"+
            "CITIC|"+
            "CI|"+
            "CHURCH|"+
            "CHRISTMAS|"+
            "CHEAP|"+
            "CH|"+
            "CG|"+
            "CF|"+
            "CEO|"+
            "CENTER|"+
            "CD|"+
            "CC|"+
            "CATERING|"+
            "CAT|"+
            "CASH|"+
            "CAREERS|"+
            "CAREER|"+
            "CARE|"+
            "CARDS|"+
            "CAPITAL|"+
            "CAPETOWN|"+
            "CANCERRESEARCH|"+
            "CAMP|"+
            "CAMERA|"+
            "CAB|"+
            "CA|"+
            "BZH|"+
            "BZ|"+
            "BY|"+
            "BW|"+
            "BV|"+
            "BUZZ|"+
            "BUILDERS|"+
            "BUILD|"+
            "BT|"+
            "BS|"+
            "BRUSSELS|"+
            "BR|"+
            "BOUTIQUE|"+
            "BO|"+
            "BN|"+
            "BMW|"+
            "BM|"+
            "BLUE|"+
            "BLACKFRIDAY|"+
            "BLACK|"+
            "BJ|"+
            "BIZ|"+
            "BIO|"+
            "BIKE|"+
            "BID|"+
            "BI|"+
            "BH|"+
            "BG|"+
            "BF|"+
            "BEST|"+
            "BERLIN|"+
            "BEER|"+
            "BE|"+
            "BD|"+
            "BB|"+
            "BAYERN|"+
            "BARGAINS|"+
            "BAR|"+
            "BA|"+
            "AZ|"+
            "AXA|"+
            "AX|"+
            "AW|"+
            "AUTOS|"+
            "AUDIO|"+
            "AU|"+
            "ATTORNEY|"+
            "AT|"+
            "ASSOCIATES|"+
            "ASIA|"+
            "AS|"+
            "ARPA|"+
            "ARMY|"+
            "ARCHI|"+
            "AR|"+
            "AQ|"+
            "AO|"+
            "AN|"+
            "AM|"+
            "AL|"+
            "AIRFORCE|"+
            "AI|"+
            "AGENCY|"+
            "AG|"+
            "AF|"+
            "AERO|"+
            "AE|"+
            "AD|"+
            "ACTOR|"+
            "ACTIVE|"+
            "ACCOUNTANTS|"+
            "ACADEMY|"+
            "AC"
        + ")"
        ;
    }
}