(Swift 3,4,5...) Set Container ACL

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

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func chilkatTest() {
    // 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.

    let rest = CkoRest()!

    // Connect to the Azure Storage Blob Service
    var bTls: Bool = true
    var port: Int = 443
    var bAutoReconnect: Bool = true
    // In this example, the storage account name is "chilkat".
    var success: Bool = rest.connect("chilkat.blob.core.windows.net", port: port, tls: bTls, autoReconnect: bAutoReconnect)
    if success != true {
        print("\(rest.lastErrorText!)")
        return
    }

    // Provide Azure Cloud credentials for the REST call.
    let azAuth = CkoAuthAzureStorage()!
    azAuth.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.account = "chilkat"
    azAuth.scheme = "SharedKey"
    azAuth.service = "Blob"
    // This causes the "x-ms-version: 2020-08-04" header to be automatically added.
    azAuth.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.
    let prng = CkoPrng()!
    var randomId: String? = prng.randomString(32, bDigits: true, bLower: true, bUpper: true)

    // Get the current system date/time in ISO 8061 format
    let dt = CkoDateTime()!
    dt.setFromCurrentSystemTime()
    var bLocal: Bool = false
    // Get the current date/time in ISO 8061 UTC format.
    var curDtStr: String? = dt.getAsTimestamp(bLocal)
    // The expire time will be 365 days in the future.
    success = dt.addDays(365)
    var expireDtStr: String? = dt.getAsTimestamp(bLocal)

    // Build the request:
    let xml = CkoXml()!
    xml.tag = "SignedIdentifiers"
    var xSignedId: CkoXml? = xml.newChild("SignedIdentifier", content: "")
    xSignedId!.newChild2("Id", content: randomId)
    var xAccessPolicy: CkoXml? = xSignedId!.newChild("AccessPolicy", content: "")
    xAccessPolicy!.newChild2("Start", content: curDtStr)
    xAccessPolicy!.newChild2("Expiry", content: expireDtStr)
    xAccessPolicy!.newChild2("Permission", content: "rwd")
    xAccessPolicy = nil
    xSignedId = nil

    // Show the XML..
    print("\(xml.getXml()!)")

    // The expected response is a 200 response status code with no response body.
    var responseStr: String? = rest.fullRequest("PUT", uriPath: "/mycontainer?restype=container&comp=acl", bodyText: xml.getXml())
    if rest.lastMethodSuccess != true {
        print("\(rest.lastErrorText!)")
        return
    }

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

    if rest.responseStatusCode.intValue != 200 {
        // Examine the request/response to see what happened.
        print("response status code = \(rest.responseStatusCode.intValue)")
        print("response status text = \(rest.responseStatusText!)")
        print("response header: \(rest.responseHeader!)")
        print("response body (if any): \(responseStr!)")
        print("---")
        print("LastRequestStartLine: \(rest.lastRequestStartLine!)")
        print("LastRequestHeader: \(rest.lastRequestHeader!)")
        return
    }

    print("Success.")

}