(PowerShell) Amazon Glacier Get Vault Access Policy

Demonstrates how to retrieve the access-policy subresource set on the vault

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

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

$rest = New-Object Chilkat.Rest

# Connect to the Amazon AWS REST server in the desired region.
$bTls = $true
$port = 443
$bAutoReconnect = $true
$success = $rest.Connect("glacier.us-west-2.amazonaws.com",$port,$bTls,$bAutoReconnect)

# Provide AWS credentials.
$authAws = New-Object Chilkat.AuthAws
$authAws.AccessKey = "AWS_ACCESS_KEY"
$authAws.SecretKey = "AWS_SECRET_KEY"
$authAws.ServiceName = "glacier"
$authAws.Region = "us-west-2"

$success = $rest.SetAuthAws($authAws)

# --------------------------------------------------------------------------
# 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
# 
$rest.AddHeader("x-amz-glacier-version","2012-06-01")

# Get the access policy for the "chilkat" vault.
$sbResponseBody = New-Object Chilkat.StringBuilder
$success = $rest.FullRequestNoBodySb("GET","/AWS_ACCOUNT_ID/vaults/chilkat/access-policy",$sbResponseBody)
if ($success -ne $true) {
    $($rest.LastErrorText)
    exit
}

$respStatusCode = $rest.ResponseStatusCode
if ($respStatusCode -ge 400) {
    $("Response Status Code = " + $respStatusCode)
    $("Response Header:")
    $($rest.ResponseHeader)
    $("Response Body:")
    $($sbResponseBody.GetAsString())
    exit
}

# Success is indicated by a 200 response status.
$("response status code = " + $respStatusCode)

$json = New-Object Chilkat.JsonObject
$json.LoadSb($sbResponseBody)
$json.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...
$jsonPolicy = New-Object Chilkat.JsonObject
$jsonPolicy.Load($json.StringOf("Policy"))
$jsonPolicy.EmitCompact = $false

$($jsonPolicy.Emit())
$("----")

# 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...

$Version = $jsonPolicy.StringOf("Version")
$i = 0
$count_i = $jsonPolicy.SizeOfArray("Statement")
while ($i -lt $count_i) {
    $jsonPolicy.I = $i
    $Sid = $jsonPolicy.StringOf("Statement[i].Sid")
    $Effect = $jsonPolicy.StringOf("Statement[i].Effect")
    $PrincipalAWS = $jsonPolicy.StringOf("Statement[i].Principal.AWS")
    $Action = $jsonPolicy.StringOf("Statement[i].Action")
    $Resource = $jsonPolicy.StringOf("Statement[i].Resource")
    $i = $i + 1
}