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Expression régulière pour l'URL

J'ai écrit regex pour valider l'URL qui pourrait être soit comme

Tous les 4 travaillent

Maintenant, si je saisis un texte tel que (www.example.com - thisisincorrect), cela me permet de saisir et d’enregistrer en db

Le regex que j'ai utilisé est: 

http(s)?://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?

et

([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?

S'il vous plaît aider!

c#regexvisual-studio
23
Romil N

Ajouter ^ et $

^http(s)?://([\w-]+.)+[\w-]+(/[\w- ./?%&=])?$

Cela correspond au début de la chaîne (^) et à la fin ($)

25
Gary Green

Vous n'avez pas besoin d'une regex pour les URL, utilisez System.Uri class pour cela. Par exemple. en utilisant Uri.IsWellFormedUriString méthode pour cela:

bool isUri = Uri.IsWellFormedUriString(url, UriKind.RelativeOrAbsolute);
65
Alex

Meilleur regex:

private bool IsUrlValid(string url)
{

    string pattern = @"^(http|https|ftp|)\://|[a-zA-Z0-9\-\.]+\.[a-zA-Z](:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\-\._\?\,\'/\\\+&%\$#\=~])*[^\.\,\)\(\s]$";
    Regex reg = new Regex(pattern, RegexOptions.Compiled | RegexOptions.IgnoreCase);
    return reg.IsMatch(url);
}
12
user1335958

lors de la création d'une expression rationnelle pour une correspondance stricte, vous devez vous assurer qu'elle commence par '^' et se termine par '$'. Sinon, l'expression régulière verra si elle trouve une sous-chaîne qui correspond.

  • '^' signifie que le début de la ligne correspond
  • '$' correspond à la fin de la ligne.

Cependant, utiliser un regex pour faire correspondre une URL est sujet à des erreurs: mieux s’appuyer sur les frameworks existants pour le faire mieux (il existe de nombreux pièges potentiels dans les URL, tels que les paramètres, les domaines inconnus, les URL contenant ip au lieu de domaine ...).

2
Bruce

Vous cherchez ceci

Sans Http:

@"^(www.|[a-zA-Z].)[a-zA-Z0-9\-\.]+\.(com|edu|gov|mil|net|org|biz|info|name|museum|us|ca|uk)(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\;\?\'\\\+&%\$#\=~_\-]+))*$"

Avec Http (s):

@"^(((ht|f)tp(s?))\://)?(www.|[a-zA-Z].)[a-zA-Z0-9\-\.]+\.(com|edu|gov|mil|net|org|biz|info|name|museum|us|ca|uk)(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\;\?\'\\\+&%\$#\=~_\-]+))*$"

ou

@"^[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(/\S*)?$";
0
sach4all

Je voudrais partager avec vous la version avancée de la requête @ sach4all regexp qui vérifie tous les liens s'ils ont le superdomaine correct au cas où certains liens ne simuleraient qu'une adresse URL correcte.

@"(www.|[a-zA-Z].)[a-zA-Z0-9\-\.]+\.(AAA|AARP|ABARTH|ABB|ABBOTT|ABBVIE|ABC|ABLE|ABOGADO|ABUDHABI|AC|ACADEMY|ACCENTURE|ACCOUNTANT|ACCOUNTANTS|ACO|ACTIVE|ACTOR|AD|ADAC|ADS|ADULT|AE|AEG|AERO|AETNA|AF|AFAMILYCOMPANY|AFL|AFRICA|AG|AGAKHAN|AGENCY|AI|AIG|AIGO|AIRBUS|AIRFORCE|AIRTEL|AKDN|AL|ALFAROMEO|ALIBABA|ALIPAY|ALLFINANZ|ALLSTATE|ALLY|ALSACE|ALSTOM|AM|AMERICANEXPRESS|AMERICANFAMILY|AMEX|AMFAM|AMICA|AMSTERDAM|ANALYTICS|Android|ANQUAN|ANZ|AO|AOL|APARTMENTS|APP|Apple|AQ|AQUARELLE|AR|ARAB|ARAMCO|ARCHI|ARMY|ARPA|ART|ARTE|AS|ASDA|ASIA|ASSOCIATES|AT|ATHLETA|ATTORNEY|AU|AUCTION|AUDI|AUDIBLE|AUDIO|AUSPOST|AUTHOR|AUTO|AUTOS|AVIANCA|AW|AWS|AX|AXA|AZ|Azure|BA|BABY|BAIDU|BANAMEX|BANANAREPUBLIC|BAND|BANK|BAR|BARCELONA|BARCLAYCARD|BARCLAYS|BAREFOOT|BARGAINS|BASEBALL|BASKETBALL|BAUHAUS|BAYERN|BB|BBC|BBT|BBVA|BCG|BCN|BD|BE|BEATS|BEAUTY|BEER|BENTLEY|BERLIN|BEST|BESTBUY|BET|BF|BG|BH|BHARTI|BI|BIBLE|BID|BIKE|BING|BINGO|BIO|BIZ|BJ|BLACK|BLACKFRIDAY|BLANCO|BLOCKBUSTER|BLOG|BLOOMBERG|BLUE|BM|BMS|BMW|BN|BNL|BNPPARIBAS|BO|BOATS|BOEHRINGER|BOFA|BOM|BOND|BOO|BOOK|BOOKING|BOSCH|BOSTIK|BOSTON|BOT|BOUTIQUE|BOX|BR|BRADESCO|BRIDGESTONE|BROADWAY|BROKER|BROTHER|BRUSSELS|BS|BT|BUDAPEST|BUGATTI|BUILD|BUILDERS|BUSINESS|BUY|BUZZ|BV|BW|BY|BZ|BZH|CA|CAB|CAFE|CAL|CALL|CALVINKLEIN|CAM|CAMERA|CAMP|CANCERRESEARCH|Canon|CAPETOWN|CAPITAL|CAPITALONE|CAR|CARAVAN|CARDS|CARE|CAREER|CAREERS|CARS|CARTIER|CASA|CASE|CASEIH|CASH|CASINO|CAT|CATERING|CATHOLIC|CBA|CBN|CBRE|CBS|CC|CD|CEB|CENTER|CEO|CERN|CF|CFA|CFD|CG|CH|CHANEL|CHANNEL|CHARITY|CHASE|CHAT|CHEAP|CHINTAI|CHRISTMAS|CHROME|CHRYSLER|CHURCH|CI|CIPRIANI|CIRCLE|Cisco|CITADEL|CITI|CITIC|CITY|CITYEATS|CK|CL|CLAIMS|CLEANING|CLICK|CLINIC|CLINIQUE|CLOTHING|CLOUD|CLUB|CLUBMED|CM|CN|CO|COACH|CODES|COFFEE|COLLEGE|COLOGNE|COM|COMCAST|COMMBANK|COMMUNITY|COMPANY|COMPARE|COMPUTER|COMSEC|CONDOS|CONSTRUCTION|CONSULTING|CONTACT|CONTRACTORS|COOKING|COOKINGCHANNEL|COOL|COOP|CORSICA|COUNTRY|COUPON|COUPONS|COURSES|CR|CREDIT|CREDITCARD|CREDITUNION|CRICKET|CROWN|CRS|CRUISE|CRUISES|CSC|CU|CUISINELLA|CV|CW|CX|CY|CYMRU|CYOU|CZ|DABUR|DAD|DANCE|DATA|DATE|DATING|DATSUN|DAY|DCLK|DDS|DE|DEAL|DEALER|DEALS|DEGREE|DELIVERY|Dell|DELOITTE|DELTA|DEMOCRAT|DENTAL|DENTIST|DESI|DESIGN|DEV|DHL|DIAMONDS|DIET|DIGITAL|DIRECT|DIRECTORY|DISCOUNT|DISCOVER|DISH|DIY|DJ|DK|DM|DNP|DO|DOCS|DOCTOR|DODGE|DOG|DOHA|DOMAINS|DOT|DOWNLOAD|DRIVE|DTV|DUBAI|DUCK|DUNLOP|DUNS|DUPONT|DURBAN|DVAG|DVR|DZ|EARTH|EAT|EC|ECO|EDEKA|EDU|EDUCATION|EE|EG|EMAIL|EMERCK|ENERGY|ENGINEER|ENGINEERING|ENTERPRISES|EPOST|EPSON|EQUIPMENT|ER|ERICSSON|ERNI|ES|ESQ|ESTATE|ESURANCE|ET|ETISALAT|EU|EUROVISION|EUS|EVENTS|EVERBANK|EXCHANGE|EXPERT|EXPOSED|EXPRESS|EXTRASPACE|FAGE|FAIL|FAIRWINDS|FAITH|FAMILY|FAN|FANS|FARM|FARMERS|FASHION|FAST|FEDEX|FEEDBACK|FERRARI|FERRERO|FI|FIAT|FIDELITY|FIDO|FILM|FINAL|FINANCE|FINANCIAL|FIRE|FIRESTONE|FIRMDALE|FISH|FISHING|FIT|FITNESS|FJ|FK|FLICKR|FLIGHTS|FLIR|FLORIST|FLOWERS|FLY|FM|FO|FOO|FOOD|FOODNETWORK|FOOTBALL|FORD|FOREX|FORSALE|FORUM|FOUNDATION|FOX|FR|FREE|FRESENIUS|FRL|FROGANS|FRONTDOOR|FRONTIER|FTR|FUJITSU|FUJIXEROX|FUN|FUND|FURNITURE|FUTBOL|FYI|GA|GAL|GALLERY|GALLO|GALLUP|GAME|GAMES|GAP|GARDEN|GB|GBIZ|Gd|GDN|GE|GEA|GENT|GENTING|GEORGE|GF|GG|GGEE|GH|GI|GIFT|GIFTS|GIVES|GIVING|GL|GLADE|GLASS|GLE|GLOBAL|GLOBO|GM|GMAIL|GMBH|GMO|GMX|GN|GODADDY|GOLD|GOLDPOINT|GOLF|GOO|GOODYEAR|GOOG|GOOGLE|GOP|GOT|GOV|GP|GQ|GR|GRAINGER|GRAPHICS|GRATIS|GREEN|GRIPE|GROCERY|GROUP|GS|GT|GU|GUARDIAN|GUCCI|GUGE|GUIDE|GUITARS|GURU|GW|GY|HAIR|HAMBURG|HANGOUT|HAUS|HBO|HDFC|HDFCBANK|HEALTH|HEALTHCARE|HELP|HELSINKI|HERE|HERMES|HGTV|HIPHOP|HISAMITSU|HITACHI|HIV|HK|HKT|HM|HN|HOCKEY|HOLDINGS|HOLIDAY|HOMEDEPOT|HOMEGOODS|HOMES|HOMESENSE|HONDA|HONEYWELL|HORSE|HOSPITAL|Host|HOSTING|HOT|HOTELES|HOTELS|HOTMAIL|HOUSE|HOW|HR|HSBC|HT|HU|HUGHES|HYATT|HYUNDAI|IBM|ICBC|ICE|ICU|ID|IE|IEEE|IFM|IKANO|IL|IM|IMAMAT|IMDB|IMMO|IMMOBILIEN|IN|INC|INDUSTRIES|INFINITI|INFO|ING|INK|INSTITUTE|INSURANCE|INSURE|INT|INTEL|INTERNATIONAL|INTUIT|INVESTMENTS|IO|IPIRANGA|IQ|IR|IRISH|IS|ISELECT|ISMAILI|IST|ISTANBUL|IT|ITAU|iTV|IVECO|JAGUAR|Java|JCB|JCP|JE|JEEP|JETZT|JEWELRY|JIO|JLL|JM|JMP|JNJ|JO|JOBS|JOBURG|JOT|JOY|JP|JPMORGAN|JPRS|JUEGOS|JUNIPER|KAUFEN|KDDI|KE|KERRYHOTELS|KERRYLOGISTICS|KERRYPROPERTIES|KFH|KG|KH|KI|KIA|KIM|KINDER|Kindle|KITCHEN|KIWI|KM|KN|KOELN|KOMATSU|KOSHER|KP|KPMG|KPN|KR|KRD|KRED|KUOKGROUP|KW|KY|KYOTO|KZ|LA|LACAIXA|LADBROKES|LAMBORGHINI|LAMER|LANCASTER|LANCIA|LANCOME|LAND|LANDROVER|LANXESS|LASALLE|LAT|LATINO|LATROBE|LAW|LAWYER|LB|LC|LDS|LEASE|LECLERC|LEFRAK|LEGAL|LEGO|LEXUS|LGBT|LI|LIAISON|LIDL|LIFE|LIFEINSURANCE|LIFESTYLE|LIGHTING|LIKE|LILLY|LIMITED|LIMO|LINCOLN|LINDE|LINK|LIPSY|LIVE|LIVING|LIXIL|LK|LLC|LOAN|LOANS|LOCKER|LOCUS|LOFT|LOL|LONDON|LOTTE|LOTTO|LOVE|LPL|LPLFINANCIAL|LR|LS|LT|LTD|LTDA|LU|LUNDBECK|LUPIN|LUXE|LUXURY|LV|LY|MA|MACYS|MADRID|MAIF|MAISON|MAKEUP|MAN|MANAGEMENT|MANGO|MAP|MARKET|MARKETING|MARKETS|MARRIOTT|MARSHALLS|MASERATI|MATTEL|MBA|MC|MCKINSEY|MD|ME|MED|MEDIA|MEET|MELBOURNE|MEME|MEMORIAL|MEN|MENU|MERCKMSD|METLIFE|MG|MH|MIAMI|Microsoft|MIL|MINI|MINT|MIT|MITSUBISHI|MK|ML|MLB|MLS|MM|MMA|MN|MO|M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UNG-PWB|XN--VHQUV|XN--VUQ861B|XN--W4R85EL8FHU5DNRA|XN--W4RS40L|XN--WGBH1C|XN--WGBL6A|XN--XHQ521B|XN--XKC2AL3HYE2A|XN--XKC2DL3A5EE0H|XN--Y9A3AQ|XN--YFRO4I67O|XN--YGBI2AMMX|XN--ZFR164B|XXX|XYZ|YACHTS|YAHOO|YAMAXUN|YANDEX|YE|YODOBASHI|YOGA|YOKOHAMA|YOU|YOUTUBE|YT|YUN|ZA|ZAPPOS|ZARA|ZERO|Zip|ZIPPO|ZM|ZONE|ZUERICH|ZW)(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\;\?\'\\\+&%\$#\=~_\-]+))*$

La liste des superdomaines est collectée le 1er janvier 2019 sur http://data.iana.org/TLD/tlds-alpha-by-domain.txt

0
Piotr Wojcik

Cela fonctionne pour moi:

string pattern = @"^(ht|f)tp(s?)\:\/\/[0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*(:(0-9)*)*(\/?)([a-zA-Z0-9\-\.\?\,\'\/\\\+&%\$#_]*)?$";

Regex regex = new Regex(pattern, RegexOptions.Compiled | RegexOptions.IgnoreCase);

string url= txtAddressBar.Text.Trim();

if(regex.IsMatch(url)
{
  //do something
}
0
Oyebisi Jemil

C’est pour prendre en charge http, https en option et pour valider que l’espace n’est pas inclus dans l’URL.

this.isValidURL = function (url) {

    if (!url) return false;

    const expression = /^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$/gm;

    return url.match(new RegExp(expression));
}
0
Ali