(AutoIt) 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

; This example assumes the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

Local $bSuccess
Local $sMySecurityKey = "e7ea8d73-8fa0-44ef-a2cc-91526f7df5ed"

Local $sUrl = "https://test.b-cdn.net/sample-pdf-with-images.pdf"

; Extract the URL components.
$oUrlObj = ObjCreate("Chilkat.Url")
$oUrlObj.ParseUrl($sUrl)

Local $sUrl_scheme = "https"
If ($oUrlObj.Ssl = False) Then
    $sUrl_scheme = "http"
EndIf

Local $sUrl_host = $oUrlObj.Host
Local $sUrl_path = $oUrlObj.Path

; Calculate an expiration time 1 hour from the current date/time.
$oExpTime = ObjCreate("Chilkat.CkDateTime")
$oExpTime.SetFromCurrentSystemTime()
$oExpTime.AddSeconds(3600)
Local $sExpires = $oExpTime.GetAsUnixTimeStr(False)

ConsoleWrite("Expires = " & $sExpires & @CRLF)

; Create the string to hash
$oSbToHash = ObjCreate("Chilkat.StringBuilder")
$oSbToHash.Append($sMySecurityKey)
$oSbToHash.Append($sUrl_path)
$oSbToHash.Append($sExpires)

; Base64Url encoding is the same as base64, except "-" is used instead of "+",
; "_" is used instead of "/", and no "=" padding is added.
Local $sToken = $oSbToHash.GetHash("sha256","base64Url","utf-8")

$oSbSignedUrl = ObjCreate("Chilkat.StringBuilder")
$oSbSignedUrl.Append($sUrl_scheme)
$oSbSignedUrl.Append("://")
$oSbSignedUrl.Append($sUrl_host)
$oSbSignedUrl.Append($sUrl_path)
$oSbSignedUrl.Append("?token=")
$oSbSignedUrl.Append($sToken)
$oSbSignedUrl.Append("&expires=")
$oSbSignedUrl.Append($sExpires)

Local $signedUrl = $oSbSignedUrl.GetAsString()
ConsoleWrite("Signed URL: " & $signedUrl & @CRLF)

; Use the signed URL to download the file.
$oHttp = ObjCreate("Chilkat.Http")
$bSuccess = $oHttp.Download($signedUrl,"c:/aaworkarea/sample.pdf")
If ($bSuccess = False) Then
    ConsoleWrite($oHttp.LastErrorText & @CRLF)
Else
    ConsoleWrite("Success." & @CRLF)
EndIf