AutoIt

Create an Azure Service SAS

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Shows how to generate an Azure Service SAS. AutoIt

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

; ----------------------------------------------------------------------------------------------
; Create a Shared Access Signature (SAS) token for an Azure Service (Blob, Queue, Table, or File)
; -----------------------------------------------------------------------------------------------

; See https://docs.microsoft.com/en-us/rest/api/storageservices/create-service-sas
; for details.

$oAuthSas = ObjCreate("Chilkat.AuthAzureSAS")
$oAuthSas.AccessKey = "AZURE_ACCESS_KEY"

; Specify the format of the string to sign.
; Each comma character in the following string represents a LF ("\n") character.
; The names specified in the StringToSign are replaced with the values specified
; in the subsequent calls to SetTokenParam and SetNonTokenParam,.

; Note: The trailing comma in the StringToSign is intentional and important. This indicates that the 
; string to sign will end with a "\n".

; Also note: The names in the StringToSign are case sensitive.  The names
; specified in the 1st argument in the calls to SetNonTokenParam and SetTokenParam should
; match a name listed in StringToSign. 

; Version 2018-11-09 and later
; 
; Version 2018-11-09 adds support for the signed resource and signed blob snapshot time fields. 
; These must be included in the string-to-sign. To construct the string-to-sign for Blob service resources, use the following format:
; 
; StringToSign = signedpermissions + "\n" +  
;                signedstart + "\n" +  
;                signedexpiry + "\n" +  
;                canonicalizedresource + "\n" +  
;                signedidentifier + "\n" +  
;                signedIP + "\n" +  
;                signedProtocol + "\n" +  
;                signedversion + "\n" +  
;                signedResource + "\n"
;                signedSnapshotTime + "\n" +
;                rscc + "\n" +  
;                rscd + "\n" +  
;                rsce + "\n" +  
;                rscl + "\n" +  
;                rsct  
; 

$oAuthSas.StringToSign = "signedpermissions,signedstart,signedexpiry,canonicalizedresource,signedidentifier,signedIP,signedProtocol,signedversion,signedResource,signedSnapshotTime,rscc,rscd,rsce,rscl,rsct"

$oAuthSas.SetTokenParam("signedpermissions","sp","rw")

$oDt = ObjCreate("Chilkat.CkDateTime")
$oDt.SetFromCurrentSystemTime()
$oAuthSas.SetTokenParam("signedstart","st",$oDt.GetAsIso8601("YYYY-MM-DDThh:mmTZD",False))

; This SAS token will be valid for 30 days.
$oDt.AddDays(30)
$oAuthSas.SetTokenParam("signedexpiry","se",$oDt.GetAsIso8601("YYYY-MM-DDThh:mmTZD",False))

; The canonicalizedresouce portion of the string is a canonical path to the signed resource. It must include the service name (blob, table, queue or file) for version
; 2021-08-06 or later, the storage account name, and the resource name, and must be URL-decoded. Names of blobs must include the blob�s container. Table names must be
; lower-case. The following examples show how to construct the canonicalizedresource portion of the string, depending on the type of resource.
; For example:
; URL = https://chilkat.blob.core.windows.net/mycontainer/starfish.jpg
; canonicalizedresource = "/blob/chilkat/mycontainer/starfish.jpg"  
; IMPORTANT: See https://docs.microsoft.com/en-us/rest/api/storageservices/create-service-sas for all details..
$oAuthSas.SetNonTokenParam("canonicalizedresource","/blob/chilkat/mycontainer/starfish.jpg")

$oAuthSas.SetTokenParam("signedProtocol","spr","https")

;  Specifiy values and query param names for each field.
;  If a field is not specified, then an empty string will be used for its value.
$oAuthSas.SetTokenParam("signedversion","sv","2018-11-09")

; Indicate that we are creating a service SAS that is limited to the blob resource.
; (Specify b if the shared resource is a blob. This grants access to the content and metadata of the blob.
;  Specify c if the shared resource is a container. This grants access to the content and metadata of any blob in the container, and to the list of blobs in the container. )
$oAuthSas.SetTokenParam("signedResource","sr","b")

; Note that we did not call SetTokenParam for "signedIP", "signedSnapshotTime", "rscc", and others.  For any omitted fields
; the value will default to the empty string.

; Generate the SAS token.
Local $sasToken = $oAuthSas.GenerateToken()
If ($oAuthSas.LastMethodSuccess <> True) Then
    ConsoleWrite($oAuthSas.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("SAS token: " & $sasToken & @CRLF)

; Save the SAS Service token to a file.
; We can then use this pre-generated token for future Azure Storage Account operations.
$oFac = ObjCreate("Chilkat.FileAccess")
$oFac.WriteEntireTextFile("qa_data/tokens/azureStorageServiceSas.txt",$sasToken,"utf-8",False)