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(Classic ASP) CanonicalizeUrlThe CanonicalizeUrl method is a utility function that canonicalizes a URL into a standard form to avoid duplicates. For example, "http://www.chilkatsoft.com/" and "http://www.chilkatsoft.com/default.asp" are the same URL.
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Spider") set spider = Server.CreateObject("Chilkat.Spider") ' Does a DNS lookup to find the default domain, which may or may not include the "www." depending on the DNS results. ' Also domain names are converted to lowercase: Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("http://www.ChilkatSoft.com/")) & "</pre>" ' CanonicalizeUrl will drop the HTML fragment: Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("http://www.chilkatsoft.com/purchase2.asp#buyZip")) & "</pre>" ' If a username/password is in the URL, it gets dropped: Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("http://username:password@www.chilkatsoft.com/purchase2.asp#buyZip")) & "</pre>" ' Port 80 and 443 are dropped: Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("http://www.chilkatsoft.com:80/purchase2.asp")) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("https://www.paypal.com:443/")) & "</pre>" ' Removes default pages: ' default.asp, index.html, index.htm, default.html, index.htm, default.htm ' index.php, index.asp, default.php, .cfm, .aspx, ,php3, .pl, .cgi, .txt, .shtml, .phtml Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("http://www.chilkatsoft.com/index.asp")) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("http://www.chilkatsoft.com/index.asp")) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("http://www.chilkatsoft.com/index.php")) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("http://www.chilkatsoft.com/index.pl")) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( spider.CanonicalizeUrl("http://www.chilkatsoft.com/index.htm")) & "</pre>" ' Output: ' http://chilkatsoft.com/ ' http://chilkatsoft.com/purchase2.asp ' http://chilkatsoft.com/purchase2.asp ' http://chilkatsoft.com/purchase2.asp ' https://www.paypal.com/ ' http://chilkatsoft.com/ ' http://chilkatsoft.com/ ' http://chilkatsoft.com/ ' http://chilkatsoft.com/ ' http://chilkatsoft.com %> </body> </html> |
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