(C++) Set Container ACL

Azure Storage Blob Service REST API: Sample code to set the permissions of a container.

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#include <CkRest.h>
#include <CkAuthAzureStorage.h>
#include <CkPrng.h>
#include <CkDateTime.h>
#include <CkXml.h>

void ChilkatSample(void)
    {
    // Azure Blob Service Example: Set Container ACL
    // See also: https://msdn.microsoft.com/en-us/library/azure/dd179391.aspx

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

    CkRest rest;

    // Connect to the Azure Storage Blob Service
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    // In this example, the storage account name is "chilkat".
    bool success = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    // Provide Azure Cloud credentials for the REST call.
    CkAuthAzureStorage azAuth;
    azAuth.put_AccessKey("AZURE_ACCESS_KEY");
    // The account name used here should match the 1st part of the domain passed in the call to Connect (above).
    azAuth.put_Account("chilkat");
    azAuth.put_Scheme("SharedKey");
    azAuth.put_Service("Blob");
    // This causes the "x-ms-version: 2020-08-04" header to be automatically added.
    azAuth.put_XMsVersion("2020-08-04");
    success = rest.SetAuthAzureStorage(azAuth);

    // Note: The application does not need to explicitly set the following
    // headers: x-ms-date, Authorization.  These headers
    // are automatically set by Chilkat.

    // The XML body of the request will look like this:

    // <?xml version="1.0" encoding="utf-8"?>
    // <SignedIdentifiers>
    //   <SignedIdentifier> 
    //     <Id>unique-character-value-of-up-to-64-chars</Id>
    //     <AccessPolicy>
    //       <Start>start-time</Start>
    //       <Expiry>expiry-time</Expiry>
    //       <Permission>abbreviated-permission-list</Permission>
    //     </AccessPolicy>
    //   </SignedIdentifier>
    // </SignedIdentifiers>

    // Generate a random 32-character string.
    CkPrng prng;
    const char *randomId = prng.randomString(32,true,true,true);

    // Get the current system date/time in ISO 8061 format
    CkDateTime dt;
    dt.SetFromCurrentSystemTime();
    bool bLocal = false;
    // Get the current date/time in ISO 8061 UTC format.
    const char *curDtStr = dt.getAsTimestamp(bLocal);
    // The expire time will be 365 days in the future.
    success = dt.AddDays(365);
    const char *expireDtStr = dt.getAsTimestamp(bLocal);

    // Build the request:
    CkXml xml;
    xml.put_Tag("SignedIdentifiers");
    CkXml *xSignedId = xml.NewChild("SignedIdentifier","");
    xSignedId->NewChild2("Id",randomId);
    CkXml *xAccessPolicy = xSignedId->NewChild("AccessPolicy","");
    xAccessPolicy->NewChild2("Start",curDtStr);
    xAccessPolicy->NewChild2("Expiry",expireDtStr);
    xAccessPolicy->NewChild2("Permission","rwd");
    delete xAccessPolicy;
    delete xSignedId;

    // Show the XML..
    std::cout << xml.getXml() << "\r\n";

    // The expected response is a 200 response status code with no response body.
    const char *responseStr = rest.fullRequestString("PUT","/mycontainer?restype=container&comp=acl",xml.getXml());
    if (rest.get_LastMethodSuccess() != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    // When successful, the Azure Storage service will respond with a 200 response status code,
    // with no response body.

    if (rest.get_ResponseStatusCode() != 200) {
        // Examine the request/response to see what happened.
        std::cout << "response status code = " << rest.get_ResponseStatusCode() << "\r\n";
        std::cout << "response status text = " << rest.responseStatusText() << "\r\n";
        std::cout << "response header: " << rest.responseHeader() << "\r\n";
        std::cout << "response body (if any): " << responseStr << "\r\n";
        std::cout << "---" << "\r\n";
        std::cout << "LastRequestStartLine: " << rest.lastRequestStartLine() << "\r\n";
        std::cout << "LastRequestHeader: " << rest.lastRequestHeader() << "\r\n";
        return;
    }

    std::cout << "Success." << "\r\n";
    }