(C# UWP/WinRT) Amazon Glacier Get Vault Access Policy

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

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

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

Chilkat.Rest rest = new Chilkat.Rest();

// Connect to the Amazon AWS REST server in the desired region.
bool bTls = true;
int port = 443;
bool bAutoReconnect = true;
bool success = await rest.ConnectAsync("glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

// Provide AWS credentials.
Chilkat.AuthAws authAws = new 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.
Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
success = await rest.FullRequestNoBodySbAsync("GET","/AWS_ACCOUNT_ID/vaults/chilkat/access-policy",sbResponseBody);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

int respStatusCode = rest.ResponseStatusCode;
if (respStatusCode >= 400) {
    Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode));
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(rest.ResponseHeader);
    Debug.WriteLine("Response Body:");
    Debug.WriteLine(sbResponseBody.GetAsString());
    return;
}

// Success is indicated by a 200 response status.
Debug.WriteLine("response status code = " + Convert.ToString(respStatusCode));

Chilkat.JsonObject json = new 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...
Chilkat.JsonObject jsonPolicy = new Chilkat.JsonObject();
jsonPolicy.Load(json.StringOf("Policy"));
jsonPolicy.EmitCompact = false;

Debug.WriteLine(jsonPolicy.Emit());
Debug.WriteLine("----");

// 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...
string Version;
int i;
int count_i;
string Sid;
string Effect;
string PrincipalAWS;
string Action;
string Resource;

Version = jsonPolicy.StringOf("Version");
i = 0;
count_i = jsonPolicy.SizeOfArray("Statement");
while (i < 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;
}