Framework/Managers/ConfigurationManager.ps1

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Set-StrictMode -Version Latest
#
# ConfigManager.ps1
#
class ConfigurationManager
{
    hidden static [AzSKConfig] GetAzSKConfigData()
    {        
        return [AzSKConfig]::GetInstance([ConfigurationManager]::GetAzSKSettings().UseOnlinePolicyStore, [ConfigurationManager]::GetAzSKSettings().OnlinePolicyStoreUrl, [ConfigurationManager]::GetAzSKSettings().EnableAADAuthForOnlinePolicyStore)        
    }    
    
    hidden static [AzSKSettings] GetAzSKSettings()
    {        
        return [AzSKSettings]::GetInstance()
    }

    hidden static [AzSKSettings] GetLocalAzSKSettings()
    {        
        return [AzSKSettings]::GetLocalInstance()
    }

    hidden static [AzSKSettings] UpdateAzSKSettings([AzSKSettings] $localSettings)
    {        
        return [AzSKSettings]::Update($localSettings)
    }
    
    hidden static [SVTConfig] GetSVTConfig([string] $fileName)
    {       
        $usePolicyStore = [ConfigurationManager]::GetAzSKSettings().UseOnlinePolicyStore
        $policyStoreUrlOrFolder = [ConfigurationManager]::GetAzSKSettings().OnlinePolicyStoreUrl
        $useAADAuthForPolicyStore = [ConfigurationManager]::GetAzSKSettings().EnableAADAuthForOnlinePolicyStore 
        $defaultConfigFile = [ConfigurationHelper]::LoadServerConfigFile($fileName, $usePolicyStore, $policyStoreUrlOrFolder, $useAADAuthForPolicyStore) 
        $extendedFileName = $fileName.Replace(".json",".ext.json");
        $extendedConfigFile = $null
        if(-not [ConfigurationHelper]::LocalPolicyEnabled) #Default/common case... i.e., not in local policy debug mode => get .ext.json file from server.
        {        
            $extendedConfigFile = [ConfigurationHelper]::LoadServerFileRaw($extendedFileName, $usePolicyStore, $policyStoreUrlOrFolder, $useAADAuthForPolicyStore) 
        }
        #Check if there is an .ext.json file in local org policy folder
        elseif ([ConfigurationHelper]::IsPolicyPresentOnServer($extendedFileName, $usePolicyStore, $policyStoreUrlOrFolder, $useAADAuthForPolicyStore))
        {
            Write-Warning "########## Looking for .ext.json file locally..... ##########"
            $extendedConfigFile = [ConfigurationHelper]::LoadOfflineConfigFile($extendedFileName, <#$parseJson#> $true, $policyStoreUrlOrFolder) 
        }

        $finalObject = [SVTConfig] $defaultConfigFile;
        if(-not [string]::IsNullOrWhiteSpace($extendedConfigFile))
        {
            $IdPropName = "Id"
            $finalObject = [SVTConfig]([Helpers]::MergeObjects($defaultConfigFile,$extendedConfigFile, $IdPropName));
        }        
        return $finalObject;
    }

    hidden static [PSObject] LoadServerConfigFile([string] $fileName)
    {
        return [ConfigurationHelper]::LoadServerConfigFile($fileName, [ConfigurationManager]::GetAzSKSettings().UseOnlinePolicyStore, [ConfigurationManager]::GetAzSKSettings().OnlinePolicyStoreUrl, [ConfigurationManager]::GetAzSKSettings().EnableAADAuthForOnlinePolicyStore);
    }

    hidden static [PSObject] LoadServerFileRaw([string] $fileName)
    {
        return [ConfigurationHelper]::LoadServerFileRaw($fileName, [ConfigurationManager]::GetAzSKSettings().UseOnlinePolicyStore, [ConfigurationManager]::GetAzSKSettings().OnlinePolicyStoreUrl, [ConfigurationManager]::GetAzSKSettings().EnableAADAuthForOnlinePolicyStore);
    }

    hidden static [string] LoadExtensionFile([string] $svtClassName)
    {
        $extensionSVTClassName = $svtClassName + "Ext";
        $extensionFilePath = ""
        #check for extension type only if we dont find the type already loaded in to the current session
        if(-not ($extensionSVTClassName -as [type]))
        {
            $extensionSVTClassFileName = $svtClassName + ".ext.ps1";

            if(-not [ConfigurationHelper]::LocalPolicyEnabled)
            {                
                try {
                    $extensionFilePath = [ConfigurationManager]::DownloadExtFile($extensionSVTClassFileName)
                }
                catch {
                    [EventBase]::PublishGenericException($_);
                }
            }
            #We are in org-policy debug mode, use local org policy folder to look for .ext.ps1 file
            #Check if an ext file exists for this class...
            elseif ([ConfigurationHelper]::IsPolicyPresentOnServer($extensionSVTClassFileName,[ConfigurationManager]::GetAzSKSettings().UseOnlinePolicyStore, [ConfigurationManager]::GetAzSKSettings().OnlinePolicyStoreUrl,[ConfigurationManager]::GetAzSKSettings().EnableAADAuthForOnlinePolicyStore)) 
            {
                Write-Warning "########## Looking for .ext.ps1 file locally..... ##########"
                $expectedExtFolder = Join-Path ([ConfigurationManager]::GetAzSKSettings().OnlinePolicyStoreUrl) 'Config'
                $expectedExtFile = Join-Path $expectedExtFolder $extensionSVTClassFileName

                if (Test-Path $expectedExtFile)
                {
                    $extensionFilePath = $expectedExtFile
                }
                else 
                {    
                    [EventBase]::PublishGenericCustomMessage(("Could not find extension (.ext.ps1) file for [$svtClassName] in folder [$expectedExtFolder] in org-policy-debug mode."), [MessageType]::Error);
                }
            }
        }
        return $extensionFilePath
    }

    hidden static [string[]] RegisterExtListenerFiles()
    {
        $ServerConfigMetadata = [ConfigurationManager]::LoadServerConfigFile([Constants]::ServerConfigMetadataFileName)
        $ListenerFilePaths = @();
        if($null -ne [ConfigurationHelper]::ServerConfigMetadata)
        {
            [ConfigurationHelper]::ServerConfigMetadata.OnlinePolicyList | ForEach-Object {
                if([Helpers]::CheckMember($_,"Name"))
                {
                    if($_.Name -match "Listener.ext.ps1")
                    {
                        $listenerFileName = $_.Name
                        try {
                            $extensionFilePath = [ConfigurationManager]::DownloadExtFile($listenerFileName)
                            # file has to be loaded here due to scope constraint
                            $ListenerFilePaths += $extensionFilePath
                        }
                        catch {
                            [EventBase]::PublishGenericException($_);
                        }
                    }
                }
            }
        }
        return $ListenerFilePaths;
    }

    hidden static [string] DownloadExtFile([string] $fileName)
    {
        $localExtensionsFolderPath = [Constants]::AzSKExtensionsFolderPath;
        $extensionFilePath = ""

        if(-not (Test-Path -Path $localExtensionsFolderPath))
        {
            New-Item -ItemType Directory -Path $localExtensionsFolderPath -Force
        }
        
        $extensionScriptCode = [ConfigurationManager]::LoadServerFileRaw($fileName);
        
        if(-not [string]::IsNullOrWhiteSpace($extensionScriptCode))
        {
            $extensionFilePath = Join-Path $([Constants]::AzSKExtensionsFolderPath) $fileName;
            Out-File -InputObject $extensionScriptCode -Force -FilePath $extensionFilePath -Encoding utf8;     
            Set-ItemProperty -Path $extensionFilePath -Name IsReadOnly -Value $true
        }

        return $extensionFilePath
    }
}