Xojo Plugin

Set Container ACL

See more Azure Cloud Storage Examples

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

Dim success As Boolean
success = False

// 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.

Dim rest As New Chilkat.Rest

// Connect to the Azure Storage Blob Service
Dim bTls As Boolean
bTls = True
Dim port As Int32
port = 443
Dim bAutoReconnect As Boolean
bAutoReconnect = True
// In this example, the storage account name is "chilkat".
success = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect)
If (success <> True) Then
    System.DebugLog(rest.LastErrorText)
    Return
End If

// Provide Azure Cloud credentials for the REST call.
Dim azAuth As New Chilkat.AuthAzureStorage
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: 2021-08-06" header to be automatically added.
azAuth.XMsVersion = "2021-08-06"
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.
Dim prng As New Chilkat.Prng
Dim randomId As String
randomId = prng.RandomString(32,True,True,True)

// Get the current system date/time in ISO 8061 format
Dim dt As New Chilkat.CkDateTime
success = dt.SetFromCurrentSystemTime()
Dim bLocal As Boolean
bLocal = False
// Get the current date/time in ISO 8061 UTC format.
Dim curDtStr As String
curDtStr = dt.GetAsTimestamp(bLocal)
// The expire time will be 365 days in the future.
success = dt.AddDays(365)
Dim expireDtStr As String
expireDtStr = dt.GetAsTimestamp(bLocal)

// Build the request:
Dim xml As New Chilkat.Xml
xml.Tag = "SignedIdentifiers"
Dim xSignedId As Chilkat.Xml
xSignedId = xml.NewChild("SignedIdentifier","")
xSignedId.NewChild2 "Id",randomId
Dim xAccessPolicy As Chilkat.Xml
xAccessPolicy = xSignedId.NewChild("AccessPolicy","")
xAccessPolicy.NewChild2 "Start",curDtStr
xAccessPolicy.NewChild2 "Expiry",expireDtStr
xAccessPolicy.NewChild2 "Permission","rwd"

// Show the XML..
System.DebugLog(xml.GetXml())

// The expected response is a 200 response status code with no response body.
Dim responseStr As String
responseStr = rest.FullRequestString("PUT","/mycontainer?restype=container&comp=acl",xml.GetXml())
If (rest.LastMethodSuccess <> True) Then
    System.DebugLog(rest.LastErrorText)
    Return
End If

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

If (rest.ResponseStatusCode <> 200) Then
    // Examine the request/response to see what happened.
    System.DebugLog("response status code = " + Str(rest.ResponseStatusCode))
    System.DebugLog("response status text = " + rest.ResponseStatusText)
    System.DebugLog("response header: " + rest.ResponseHeader)
    System.DebugLog("response body (if any): " + responseStr)
    System.DebugLog("---")
    System.DebugLog("LastRequestStartLine: " + rest.LastRequestStartLine)
    System.DebugLog("LastRequestHeader: " + rest.LastRequestHeader)
    Return
End If

System.DebugLog("Success.")