(Unicode C++) Amazon Glacier Set Vault Access Policy

Demonstrates how to set an access policy for a vault (will overwrite the existing policy).

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#include <CkRestW.h>
#include <CkAuthAwsW.h>
#include <CkJsonObjectW.h>
#include <CkStringBuilderW.h>

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

    CkRestW rest;

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

    // Provide AWS credentials.
    CkAuthAwsW authAws;
    authAws.put_AccessKey(L"AWS_ACCESS_KEY");
    authAws.put_SecretKey(L"AWS_SECRET_KEY");
    authAws.put_ServiceName(L"glacier");
    authAws.put_Region(L"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 Set Vault Access Policy Reference Documentation
    // 
    rest.AddHeader(L"x-amz-glacier-version",L"2012-06-01");

    // Create the following JSON
    // Use this online tool to generate the code from sample JSON: 
    // Generate Code to Create JSON

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

    CkJsonObjectW jsonPolicy;
    jsonPolicy.UpdateString(L"Version",L"2012-10-17");
    jsonPolicy.UpdateString(L"Statement[0].Sid",L"Define-owner-access-rights");
    jsonPolicy.UpdateString(L"Statement[0].Effect",L"Allow");
    jsonPolicy.UpdateString(L"Statement[0].Principal.AWS",L"arn:aws:iam::AWS_ACCOUNT_ID:root");
    jsonPolicy.UpdateString(L"Statement[0].Action",L"glacier:DeleteArchive");
    // Notice here the name of the vault: "chilkat".  Change it to your vault name.  Also use your actual AWS account ID.
    jsonPolicy.UpdateString(L"Statement[0].Resource",L"arn:aws:glacier:us-west-2:AWS_ACCOUNT_ID:vaults/chilkat");

    // Wrap the above JSON in this JSON:

    // {
    //    "Policy": "{  ... the above JSON ... }"
    // }
    CkJsonObjectW json;
    json.UpdateString(L"Policy",jsonPolicy.emit());

    CkStringBuilderW sbRequestBody;
    json.EmitSb(sbRequestBody);

    CkStringBuilderW sbResponseBody;
    success = rest.FullRequestSb(L"PUT",L"/AWS_ACCOUNT_ID/vaults/chilkat/access-policy",sbRequestBody,sbResponseBody);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    int respStatusCode = rest.get_ResponseStatusCode();
    if (respStatusCode >= 400) {
        wprintf(L"Response Status Code = %d\n",respStatusCode);
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",rest.responseHeader());
        wprintf(L"Response Body:\n");
        wprintf(L"%s\n",sbResponseBody.getAsString());
        return;
    }

    // Success is indicated by a 204 response status with an empty response body.
    wprintf(L"response status code = %d\n",respStatusCode);
    }