Ruby

Amazon Glacier Get Vault Access Policy

See more Amazon Glacier Examples

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

require 'chilkat'

success = false

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

rest = Chilkat::CkRest.new()

# 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 = Chilkat::CkAuthAws.new()
authAws.put_AccessKey("AWS_ACCESS_KEY")
authAws.put_SecretKey("AWS_SECRET_KEY")
authAws.put_ServiceName("glacier")
authAws.put_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 = Chilkat::CkStringBuilder.new()
success = rest.FullRequestNoBodySb("GET","/AWS_ACCOUNT_ID/vaults/chilkat/access-policy",sbResponseBody)
if (success != true)
    print rest.lastErrorText() + "\n";
    exit
end

respStatusCode = rest.get_ResponseStatusCode()
if (respStatusCode >= 400)
    print "Response Status Code = " + respStatusCode.to_s() + "\n";
    print "Response Header:" + "\n";
    print rest.responseHeader() + "\n";
    print "Response Body:" + "\n";
    print sbResponseBody.getAsString() + "\n";
    exit
end

# Success is indicated by a 200 response status.
print "response status code = " + respStatusCode.to_s() + "\n";

json = Chilkat::CkJsonObject.new()
json.LoadSb(sbResponseBody)
json.put_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 = Chilkat::CkJsonObject.new()
jsonPolicy.Load(json.stringOf("Policy"))
jsonPolicy.put_EmitCompact(false)

print jsonPolicy.emit() + "\n";
print "----" + "\n";

# 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 < count_i
    jsonPolicy.put_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
end