(C) S3 Find Bucket Region

Demonstrates how to find out the region of an S3 bucket.

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#include <C_CkRest.h>
#include <C_CkAuthAws.h>
#include <C_CkXml.h>

void ChilkatSample(void)
    {
    HCkRest rest;
    BOOL bTls;
    int port;
    BOOL bAutoReconnect;
    BOOL success;
    HCkAuthAws authAws;
    const char *strResult;
    int responseStatusCode;
    HCkXml xml;

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

    rest = CkRest_Create();

    // Connect to the Amazon AWS REST server using the correct region (in this example, "us-west-2")
    bTls = TRUE;
    port = 443;
    bAutoReconnect = TRUE;
    success = CkRest_Connect(rest,"s3.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials for the REST call.
    authAws = CkAuthAws_Create();
    CkAuthAws_putAccessKey(authAws,"AWS_ACCESS_KEY");
    CkAuthAws_putSecretKey(authAws,"AWS_SECRET_KEY");
    CkAuthAws_putServiceName(authAws,"s3");
    success = CkRest_SetAuthAws(rest,authAws);

    // The bucket name we want to know about is set in the HOST header.
    // In this example, we want to find the region for the "chilkat.qa" bucket.
    CkRest_putHost(rest,"chilkat.qa.s3.amazonaws.com");

    // Send the GET request to query the bucket location.
    strResult = CkRest_fullRequestNoBody(rest,"GET","/?location");
    if (CkRest_getLastMethodSuccess(rest) != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        return;
    }

    responseStatusCode = CkRest_getResponseStatusCode(rest);
    printf("Response status code = %d\n",responseStatusCode);
    if (responseStatusCode != 200) {
        printf("%s\n",CkRest_responseHeader(rest));
        printf("%s\n",strResult);
        printf("Failed.\n");
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        return;
    }

    printf("%s\n",strResult);

    // The result contains XML like this:
    // <?xml version="1.0" encoding="UTF-8"?>
    // <LocationConstraint xmlns="http://s3.amazonaws.com/doc/2006-03-01/">us-west-2</LocationConstraint>

    // Get the "us-west-2" from the XML
    xml = CkXml_Create();
    success = CkXml_LoadXml(xml,strResult);
    printf("region = %s\n",CkXml_content(xml));


    CkRest_Dispose(rest);
    CkAuthAws_Dispose(authAws);
    CkXml_Dispose(xml);

    }