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(Classic ASP) Get the Last-Modified Date Before HTTP DownloadDemonstrates how to send a HEAD request to get the last-modified date of a file on a web server (without downloading the file). Note: This example requires Chilkat v11.0.0 or greater.
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% success = 0 ' This example assumes the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. set http = Server.CreateObject("Chilkat.Http") set resp = Server.CreateObject("Chilkat.HttpResponse") success = http.HttpNoBody("HEAD","https://www.chilkatsoft.com/hamlet.xml",resp) If (success = 0) Then Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>" Response.End End If ' Examine the response header. Response.Write "<pre>" & Server.HTMLEncode( resp.Header) & "</pre>" ' Here is a sample response header: ' Content-Length: 279658 ' Content-Type: text/xml ' Last-Modified: Thu, 12 May 2016 15:14:08 GMT ' Accept-Ranges: bytes ' ETag: "c1cd8bee60acd11:0" ' Server: Microsoft-IIS/8.5 ' X-Powered-By: ASP.NET ' X-Powered-By-Plesk: PleskWin ' Date: Thu, 25 Jul 2019 16:40:54 GMT ' Get the Last-Modified header. lastModStr = resp.GetHeaderField("Last-Modified") ' If the header exists... If (resp.LastMethodSuccess = 1) Then ' Parse the RFC822 format date/time string set ckdt = Server.CreateObject("Chilkat.CkDateTime") success = ckdt.SetFromRfc822(lastModStr) ' If we want to access individual date/time parts (in the local timezone) set dt = Server.CreateObject("Chilkat.DtObj") ckdt.ToDtObj 1,dt Response.Write "<pre>" & Server.HTMLEncode( "day/month/year = " & dt.Day & "/" & dt.Month & "/" & dt.Year) & "</pre>" End If %> </body> </html> |
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