(PureBasic) Set Container ACL

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

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkXml.pb"
IncludeFile "CkRest.pb"
IncludeFile "CkAuthAzureStorage.pb"
IncludeFile "CkPrng.pb"
IncludeFile "CkDateTime.pb"

Procedure ChilkatExample()

    ; 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.

    rest.i = CkRest::ckCreate()
    If rest.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Connect to the Azure Storage Blob Service
    bTls.i = 1
    port.i = 443
    bAutoReconnect.i = 1
    ; In this example, the storage account name is "chilkat".
    success.i = CkRest::ckConnect(rest,"chilkat.blob.core.windows.net",port,bTls,bAutoReconnect)
    If success <> 1
        Debug CkRest::ckLastErrorText(rest)
        CkRest::ckDispose(rest)
        ProcedureReturn
    EndIf

    ; Provide Azure Cloud credentials for the REST call.
    azAuth.i = CkAuthAzureStorage::ckCreate()
    If azAuth.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkAuthAzureStorage::setCkAccessKey(azAuth, "AZURE_ACCESS_KEY")
    ; The account name used here should match the 1st part of the domain passed in the call to Connect (above).
    CkAuthAzureStorage::setCkAccount(azAuth, "chilkat")
    CkAuthAzureStorage::setCkScheme(azAuth, "SharedKey")
    CkAuthAzureStorage::setCkService(azAuth, "Blob")
    ; This causes the "x-ms-version: 2020-08-04" header to be automatically added.
    CkAuthAzureStorage::setCkXMsVersion(azAuth, "2020-08-04")
    success = CkRest::ckSetAuthAzureStorage(rest,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.
    prng.i = CkPrng::ckCreate()
    If prng.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    randomId.s = CkPrng::ckRandomString(prng,32,1,1,1)

    ; Get the current system date/time in ISO 8061 format
    dt.i = CkDateTime::ckCreate()
    If dt.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkDateTime::ckSetFromCurrentSystemTime(dt)
    bLocal.i = 0
    ; Get the current date/time in ISO 8061 UTC format.
    curDtStr.s = CkDateTime::ckGetAsTimestamp(dt,bLocal)
    ; The expire time will be 365 days in the future.
    success = CkDateTime::ckAddDays(dt,365)
    expireDtStr.s = CkDateTime::ckGetAsTimestamp(dt,bLocal)

    ; Build the request:
    xml.i = CkXml::ckCreate()
    If xml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::setCkTag(xml, "SignedIdentifiers")
    xSignedId.i = CkXml::ckNewChild(xml,"SignedIdentifier","")
    CkXml::ckNewChild2(xSignedId,"Id",randomId)
    xAccessPolicy.i = CkXml::ckNewChild(xSignedId,"AccessPolicy","")
    CkXml::ckNewChild2(xAccessPolicy,"Start",curDtStr)
    CkXml::ckNewChild2(xAccessPolicy,"Expiry",expireDtStr)
    CkXml::ckNewChild2(xAccessPolicy,"Permission","rwd")
    CkXml::ckDispose(xAccessPolicy)

    CkXml::ckDispose(xSignedId)

    ; Show the XML..
    Debug CkXml::ckGetXml(xml)

    ; The expected response is a 200 response status code with no response body.
    responseStr.s = CkRest::ckFullRequestString(rest,"PUT","/mycontainer?restype=container&comp=acl",CkXml::ckGetXml(xml))
    If CkRest::ckLastMethodSuccess(rest) <> 1
        Debug CkRest::ckLastErrorText(rest)
        CkRest::ckDispose(rest)
        CkAuthAzureStorage::ckDispose(azAuth)
        CkPrng::ckDispose(prng)
        CkDateTime::ckDispose(dt)
        CkXml::ckDispose(xml)
        ProcedureReturn
    EndIf

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

    If CkRest::ckResponseStatusCode(rest) <> 200
        ; Examine the request/response to see what happened.
        Debug "response status code = " + Str(CkRest::ckResponseStatusCode(rest))
        Debug "response status text = " + CkRest::ckResponseStatusText(rest)
        Debug "response header: " + CkRest::ckResponseHeader(rest)
        Debug "response body (if any): " + responseStr
        Debug "---"
        Debug "LastRequestStartLine: " + CkRest::ckLastRequestStartLine(rest)
        Debug "LastRequestHeader: " + CkRest::ckLastRequestHeader(rest)
        CkRest::ckDispose(rest)
        CkAuthAzureStorage::ckDispose(azAuth)
        CkPrng::ckDispose(prng)
        CkDateTime::ckDispose(dt)
        CkXml::ckDispose(xml)
        ProcedureReturn
    EndIf

    Debug "Success."


    CkRest::ckDispose(rest)
    CkAuthAzureStorage::ckDispose(azAuth)
    CkPrng::ckDispose(prng)
    CkDateTime::ckDispose(dt)
    CkXml::ckDispose(xml)


    ProcedureReturn
EndProcedure