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(VBScript) Manually Follow HTTP RedirectsDemonstrates how to manually follow redirects for an HTTP GET. Note: This example requires Chilkat v11.0.0 or greater.
Dim fso, outFile Set fso = CreateObject("Scripting.FileSystemObject") 'Create a Unicode (utf-16) output text file. Set outFile = fso.CreateTextFile("output.txt", True, True) success = 0 ' This example requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. set http = CreateObject("Chilkat.Http") ' The FollowRedirects property controls whether redirects ' are automatically followed. The default behavior is to ' automatically follow redirects. ' Explicitly set FollowRedirects so that redirects are NOT automatically taken: http.FollowRedirects = 0 set resp = CreateObject("Chilkat.HttpResponse") success = http.HttpNoBody("GET","http://yandex.ru/",resp) If (success = 0) Then outFile.WriteLine(http.LastErrorText) WScript.Quit End If status = resp.StatusCode outFile.WriteLine("HTTP Response Status: " & status) ' The FinalRedirectUrl property will contain the redirect URL ' If FollowRedirects was equal to 1, then all of the ' intermediate redirects (if any) would be followed until ' there were no more redirects. However, because ' FollowRedirects is not 1, FinalRedirectUrl contains ' the next redirect URL. loopCount = 0 Do While (status = 302) outFile.WriteLine("Redirect URL: " & http.FinalRedirectUrl) nextUrl = http.FinalRedirectUrl success = http.HttpNoBody("GET",nextUrl,resp) If (success = 0) Then outFile.WriteLine(http.LastErrorText) WScript.Quit End If status = resp.StatusCode outFile.WriteLine("HTTP Response Status: " & status) ' For safety, prevent infinite loops by ' keeping a loopCount and only allows following a max ' of 10 redirects: loopCount = loopCount + 1 If (loopCount > 10) Then outFile.WriteLine("Too many redirects.") WScript.Quit End If Loop outFile.Close |
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