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Amazon Glacier Get Vault Access Policy

Demonstrates how to retrieve the access-policy subresource set on the vault
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Local $bSuccess = False

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

$oRest = ObjCreate("Chilkat.Rest")

;  Connect to the Amazon AWS REST server in the desired region.
Local $bTls = True
Local $iPort = 443
Local $bAutoReconnect = True
$bSuccess = $oRest.Connect("glacier.us-west-2.amazonaws.com",$iPort,$bTls,$bAutoReconnect)

;  Provide AWS credentials.
$oAuthAws = ObjCreate("Chilkat.AuthAws")
$oAuthAws.AccessKey = "AWS_ACCESS_KEY"
$oAuthAws.SecretKey = "AWS_SECRET_KEY"
$oAuthAws.ServiceName = "glacier"
$oAuthAws.Region = "us-west-2"

$bSuccess = $oRest.SetAuthAws($oAuthAws)

;  --------------------------------------------------------------------------
;  Note: The above REST connection and setup of the AWS credentials
;  can be done once.  After connecting, any number of REST calls can be made.
;  The "auto reconnect" property passed to rest.Connect indicates that if
;  the connection is lost, a REST method call will automatically reconnect
;  if needed.
;  --------------------------------------------------------------------------

;  For more information, see Glacier Get Vault Access Policy Reference Documentation
;  
$oRest.AddHeader("x-amz-glacier-version","2012-06-01")

;  Get the access policy for the "chilkat" vault.
$oSbResponseBody = ObjCreate("Chilkat.StringBuilder")
$bSuccess = $oRest.FullRequestNoBodySb("GET","/AWS_ACCOUNT_ID/vaults/chilkat/access-policy",$oSbResponseBody)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

Local $iRespStatusCode = $oRest.ResponseStatusCode
If ($iRespStatusCode >= 400) Then
    ConsoleWrite("Response Status Code = " & $iRespStatusCode & @CRLF)
    ConsoleWrite("Response Header:" & @CRLF)
    ConsoleWrite($oRest.ResponseHeader & @CRLF)
    ConsoleWrite("Response Body:" & @CRLF)
    ConsoleWrite($oSbResponseBody.GetAsString() & @CRLF)
    Exit
EndIf

;  Success is indicated by a 200 response status.
ConsoleWrite("response status code = " & $iRespStatusCode & @CRLF)

$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.LoadSb($oSbResponseBody)
$oJson.EmitCompact = False

;  Returns JSON such as this:
;  {
;    "Policy": "{\"Version\":\"2012-10-17\",\"Statement\":[{\"Sid\":\"Define-owner-access-rights\",\"Effect\":\"Allow\",\"Principal\":{\"AWS\":\"arn:aws:iam::9999999999999:root\"},\"Action\":\"glacier:DeleteArchive\",\"Resource\":\"arn:aws:glacier:us-west-2:9999999999999:vaults/chilkat\"}]}"
;  }

;  Unwrap...
$oJsonPolicy = ObjCreate("Chilkat.JsonObject")
$oJsonPolicy.Load($oJson.StringOf("Policy"))
$oJsonPolicy.EmitCompact = False

ConsoleWrite($oJsonPolicy.Emit() & @CRLF)
ConsoleWrite("----" & @CRLF)

;  The jsonPolicy contains:

;  {
;    "Version": "2012-10-17",
;    "Statement": [
;      {
;        "Sid": "Define-owner-access-rights",
;        "Effect": "Allow",
;        "Principal": {
;          "AWS": "arn:aws:iam::9999999999999:root"
;        },
;        "Action": "glacier:DeleteArchive",
;        "Resource": "arn:aws:glacier:us-west-2:9999999999999:vaults/chilkat"
;      }
;    ]
;  }
;  

;  Use this online tool to generate parsing code from sample JSON: 
;  Generate Parsing Code from JSON

;  To parse the above contents of jsonPolicy...
Local $sVersion
Local $i
Local $iCount_i
Local $sSid
Local $sEffect
Local $sPrincipalAWS
Local $sAction
Local $sResource

$sVersion = $oJsonPolicy.StringOf("Version")
$i = 0
$iCount_i = $oJsonPolicy.SizeOfArray("Statement")
While $i < $iCount_i
    $oJsonPolicy.I = $i
    $sSid = $oJsonPolicy.StringOf("Statement[i].Sid")
    $sEffect = $oJsonPolicy.StringOf("Statement[i].Effect")
    $sPrincipalAWS = $oJsonPolicy.StringOf("Statement[i].Principal.AWS")
    $sAction = $oJsonPolicy.StringOf("Statement[i].Action")
    $sResource = $oJsonPolicy.StringOf("Statement[i].Resource")
    $i = $i + 1
Wend