(Classic ASP) Bunny Sign URL and then Download using Signed URL

See more Bunny CDN Examples

Shows how to sign a URL for BunnyCDN Token Authentication and then use it to download.

For more information, see https://support.bunny.net/hc/en-us/articles/360016055099-How-to-sign-URLs-for-BunnyCDN-Token-Authentication

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

mySecurityKey = "e7ea8d73-8fa0-44ef-a2cc-91526f7df5ed"

url = "https://test.b-cdn.net/sample-pdf-with-images.pdf"

' Extract the URL components.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Url")
set urlObj = Server.CreateObject("Chilkat.Url")
success = urlObj.ParseUrl(url)

url_scheme = "https"
If (urlObj.Ssl = 0) Then
    url_scheme = "http"
End If

url_host = urlObj.Host
url_path = urlObj.Path

' Calculate an expiration time 1 hour from the current date/time.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.CkDateTime")
set expTime = Server.CreateObject("Chilkat.CkDateTime")
success = expTime.SetFromCurrentSystemTime()
success = expTime.AddSeconds(3600)
expires = expTime.GetAsUnixTimeStr(0)

Response.Write "<pre>" & Server.HTMLEncode( "Expires = " & expires) & "</pre>"

' Create the string to hash
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder")
set sbToHash = Server.CreateObject("Chilkat.StringBuilder")
success = sbToHash.Append(mySecurityKey)
success = sbToHash.Append(url_path)
success = sbToHash.Append(expires)

' Base64Url encoding is the same as base64, except "-" is used instead of "+",
' "_" is used instead of "/", and no "=" padding is added.
token = sbToHash.GetHash("sha256","base64Url","utf-8")

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder")
set sbSignedUrl = Server.CreateObject("Chilkat.StringBuilder")
success = sbSignedUrl.Append(url_scheme)
success = sbSignedUrl.Append("://")
success = sbSignedUrl.Append(url_host)
success = sbSignedUrl.Append(url_path)
success = sbSignedUrl.Append("?token=")
success = sbSignedUrl.Append(token)
success = sbSignedUrl.Append("&expires=")
success = sbSignedUrl.Append(expires)

signedUrl = sbSignedUrl.GetAsString()
Response.Write "<pre>" & Server.HTMLEncode( "Signed URL: " & signedUrl) & "</pre>"

' Use the signed URL to download the file.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Http")
set http = Server.CreateObject("Chilkat.Http")
success = http.Download(signedUrl,"c:/aaworkarea/sample.pdf")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
Else
    Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>"
End If


%>
</body>
</html>