DSCResources/MSFT_SPOTenantCdnPolicy/MSFT_SPOTenantCdnPolicy.psm1

function Get-TargetResource
{
    [CmdletBinding()]
    [OutputType([System.Collections.Hashtable])]
    param
    (
        [Parameter(Mandatory = $true)]
        [ValidateSet('Private', 'Public')]
        [System.String]
        $CDNType,

        [Parameter()]
        [System.String[]]
        $ExcludeRestrictedSiteClassifications,

        [Parameter()]
        [System.String[]]
        $IncludeFileExtensions,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $Credential,

        [Parameter()]
        [System.String]
        $ApplicationId,

        [Parameter()]
        [System.String]
        $TenantId,

        [Parameter()]
        [System.String]
        $ApplicationSecret,

        [Parameter()]
        [System.String]
        $CertificatePath,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $CertificatePassword,

        [Parameter()]
        [System.String]
        $CertificateThumbprint
    )

    Write-Verbose -Message "Getting configuration for SPOTenantCdnPolicy {$CDNType}"
    $ConnectionMode = New-M365DSCConnection -Workload 'PNP' `
        -InboundParameters $PSBoundParameters

    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName -replace "MSFT_", ""
    $CommandName  = $MyInvocation.MyCommand
    $data = Format-M365DSCTelemetryParameters -ResourceName $ResourceName `
        -CommandName $CommandName `
        -Parameters $PSBoundParameters
    Add-M365DSCTelemetryEvent -Data $data
    #endregion
    try
    {
        $Policies = Get-PnPTenantCdnPolicies -CdnType $CDNType -ErrorAction Stop

        return @{
            CDNType                              = $CDNType
            ExcludeRestrictedSiteClassifications = $Policies['ExcludeRestrictedSiteClassifications'].Split(',')
            IncludeFileExtensions                = $Policies['IncludeFileExtensions'].Split(',')
            Credential                           = $Credential
            ApplicationId                        = $ApplicationId
            TenantId                             = $TenantId
            ApplicationSecret                    = $ApplicationSecret
            CertificatePassword                  = $CertificatePassword
            CertificatePath                      = $CertificatePath
            CertificateThumbprint                = $CertificateThumbprint
        }
    }
    catch
    {
        try
        {
            Write-Verbose -Message $_
            $tenantIdValue = ""
            if (-not [System.String]::IsNullOrEmpty($TenantId))
            {
                $tenantIdValue = $TenantId
            }
            elseif ($null -ne $Credential)
            {
                $tenantIdValue = $Credential.UserName.Split('@')[1]
            }
            Add-M365DSCEvent -Message $_ -EntryType 'Error' `
                -EventID 1 -Source $($MyInvocation.MyCommand.Source) `
                -TenantId $tenantIdValue
        }
        catch
        {
            Write-Verbose -Message $_
        }
        throw $_
    }
}

function Set-TargetResource
{
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true)]
        [ValidateSet('Private', 'Public')]
        [System.String]
        $CDNType,

        [Parameter()]
        [System.String[]]
        $ExcludeRestrictedSiteClassifications,

        [Parameter()]
        [System.String[]]
        $IncludeFileExtensions,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $Credential,

        [Parameter()]
        [System.String]
        $ApplicationId,

        [Parameter()]
        [System.String]
        $TenantId,

        [Parameter()]
        [System.String]
        $ApplicationSecret,

        [Parameter()]
        [System.String]
        $CertificatePath,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $CertificatePassword,

        [Parameter()]
        [System.String]
        $CertificateThumbprint
    )

    Write-Verbose -Message "Setting configuration for SPOTenantCDNPolicy {$CDNType}"

    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName -replace "MSFT_", ""
    $CommandName  = $MyInvocation.MyCommand
    $data = Format-M365DSCTelemetryParameters -ResourceName $ResourceName `
        -CommandName $CommandName `
        -Parameters $PSBoundParameters
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    $curPolicies = Get-TargetResource @PSBoundParameters

    if ($null -ne `
        (Compare-Object -ReferenceObject $curPolicies.IncludeFileExtensions -DifferenceObject $IncludeFileExtensions))
    {
        Write-Verbose "Found difference in IncludeFileExtensions"

        $stringValue = ""
        foreach ($entry in $IncludeFileExtensions.Split(','))
        {
            $stringValue += $entry + ","
        }
        $stringValue = $stringValue.Remove($stringValue.Length - 1, 1)
        Set-PnPTenantCdnPolicy -CdnType $CDNType `
            -PolicyType 'IncludeFileExtensions' `
            -PolicyValue $stringValue
    }

    if ($null -ne (Compare-Object -ReferenceObject $curPolicies.ExcludeRestrictedSiteClassifications `
                -DifferenceObject $ExcludeRestrictedSiteClassifications))
    {
        Write-Verbose "Found difference in ExcludeRestrictedSiteClassifications"


        Set-PnPTenantCdnPolicy -CdnType $CDNType `
            -PolicyType 'ExcludeRestrictedSiteClassifications' `
            -PolicyValue $stringValue
    }
}

function Test-TargetResource
{
    [CmdletBinding()]
    [OutputType([System.Boolean])]
    param
    (
        [Parameter(Mandatory = $true)]
        [ValidateSet('Private', 'Public')]
        [System.String]
        $CDNType,

        [Parameter()]
        [System.String[]]
        $ExcludeRestrictedSiteClassifications,

        [Parameter()]
        [System.String[]]
        $IncludeFileExtensions,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $Credential,

        [Parameter()]
        [System.String]
        $ApplicationId,

        [Parameter()]
        [System.String]
        $TenantId,

        [Parameter()]
        [System.String]
        $ApplicationSecret,

        [Parameter()]
        [System.String]
        $CertificatePath,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $CertificatePassword,

        [Parameter()]
        [System.String]
        $CertificateThumbprint
    )
    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName -replace "MSFT_", ""
    $CommandName  = $MyInvocation.MyCommand
    $data = Format-M365DSCTelemetryParameters -ResourceName $ResourceName `
        -CommandName $CommandName `
        -Parameters $PSBoundParameters
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    Write-Verbose -Message "Testing configuration for SPO Storage Entity for $Key"

    $CurrentValues = Get-TargetResource @PSBoundParameters

    Write-Verbose -Message "Current Values: $(Convert-M365DscHashtableToString -Hashtable $CurrentValues)"
    Write-Verbose -Message "Target Values: $(Convert-M365DscHashtableToString -Hashtable $PSBoundParameters)"

    $TestResult = Test-M365DSCParameterState -CurrentValues $CurrentValues `
        -Source $($MyInvocation.MyCommand.Source) `
        -DesiredValues $PSBoundParameters `
        -ValuesToCheck @("CDNType", `
            "ExcludeRestrictedSiteClassifications", `
            "IncludeFileExtensions")

    Write-Verbose -Message "Test-TargetResource returned $TestResult"

    return $TestResult
}

function Export-TargetResource
{
    [CmdletBinding()]
    [OutputType([System.String])]
    param
    (
        [Parameter()]
        [System.Management.Automation.PSCredential]
        $Credential,

        [Parameter()]
        [System.String]
        $ApplicationId,

        [Parameter()]
        [System.String]
        $TenantId,

        [Parameter()]
        [System.String]
        $ApplicationSecret,

        [Parameter()]
        [System.String]
        $CertificatePath,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $CertificatePassword,

        [Parameter()]
        [System.String]
        $CertificateThumbprint
    )

    try
    {
        $ConnectionMode = New-M365DSCConnection -Workload 'PNP' `
            -InboundParameters $PSBoundParameters

        #region Telemetry
        $ResourceName = $MyInvocation.MyCommand.ModuleName -replace "MSFT_", ""
        $CommandName  = $MyInvocation.MyCommand
        $data = Format-M365DSCTelemetryParameters -ResourceName $ResourceName `
            -CommandName $CommandName `
            -Parameters $PSBoundParameters
        Add-M365DSCTelemetryEvent -Data $data
        #endregion

        $Params = @{
            CdnType               = 'Public'
            ApplicationId         = $ApplicationId
            TenantId              = $TenantId
            ApplicationSecret     = $ApplicationSecret
            CertificatePassword   = $CertificatePassword
            CertificatePath       = $CertificatePath
            CertificateThumbprint = $CertificateThumbprint
            Credential            = $Credential
        }

        $Results = Get-TargetResource @Params
        Write-Host "`r`n |---[1/2] Public" -NoNewline
        $dscContent = ""
        if ($null -ne $Results)
        {
            $Results = Update-M365DSCExportAuthenticationResults -ConnectionMode $ConnectionMode `
                -Results $Results
            $dscContent += Get-M365DSCExportContentForResource -ResourceName $ResourceName `
                -ConnectionMode $ConnectionMode `
                -ModulePath $PSScriptRoot `
                -Results $Results `
                -Credential $Credential
        }
        Write-Host $Global:M365DSCEmojiGreenCheckmark

        $Params = @{
            CdnType               = 'Private'
            ApplicationId         = $ApplicationId
            TenantId              = $TenantId
            CertificatePassword   = $CertificatePassword
            CertificatePath       = $CertificatePath
            CertificateThumbprint = $CertificateThumbprint
            Credential    = $Credential
        }
        Write-Host " |---[2/2] Private" -NoNewline
        $Results = Get-TargetResource @params
        if ($null -ne $result)
        {
            $Results = Update-M365DSCExportAuthenticationResults -ConnectionMode $ConnectionMode `
                -Results $Results
            $currentDSCBlock = Get-M365DSCExportContentForResource -ResourceName $ResourceName `
                -ConnectionMode $ConnectionMode `
                -ModulePath $PSScriptRoot `
                -Results $Results `
                -Credential $Credential
            $dscContent += $currentDSCBlock
            Save-M365DSCPartialExport -Content $currentDSCBlock `
                -FileName $Global:PartialExportFileName
        }
        Write-Host $Global:M365DSCEmojiGreenCheckmark
        return $dscContent
    }
    catch
    {
        # This method is not implemented in some sovereign clouds (e.g. GCCHigh)
        if ($_.Exception -like '*The method or operation is not implemented*')
        {
            Write-Host "`r`n $($Global:M365DSCEmojiYellowCircle) The current tenant does not support this feature."
        }
        else
        {
            Write-Host $Global:M365DSCEmojiRedX
            try
            {
                Write-Verbose -Message $_
                $tenantIdValue = ""
                if (-not [System.String]::IsNullOrEmpty($TenantId))
                {
                    $tenantIdValue = $TenantId
                }
                elseif ($null -ne $Credential)
                {
                    $tenantIdValue = $Credential.UserName.Split('@')[1]
                }
                Add-M365DSCEvent -Message $_ -EntryType 'Error' `
                    -EventID 1 -Source $($MyInvocation.MyCommand.Source) `
                    -TenantId $tenantIdValue
            }
            catch
            {
                Write-Verbose -Message $_
            }
        }
        return ""
    }
}

Export-ModuleMember -Function *-TargetResource