DSCResources/MSFT_EXORemoteDomain/MSFT_EXORemoteDomain.psm1

Confirm-M365DSCModuleDependency -ModuleName 'MSFT_EXORemoteDomain'

function Get-TargetResource
{
    [CmdletBinding()]
    [OutputType([System.Collections.Hashtable])]
    param
    (
        [Parameter(Mandatory = $true)]
        [System.String]
        $Identity,

        [Parameter()]
        [ValidateLength(0, 256)]
        [System.String]
        $DomainName,

        [Parameter()]
        [ValidateSet('External', 'ExternalLegacy', 'InternalLegacy', 'None')]
        [System.String]
        $AllowedOOFType,

        [Parameter()]
        [ValidateSet('Present', 'Absent')]
        [System.String]
        $Ensure = 'Present',

        [Parameter()]
        [System.Boolean]
        $AutoForwardEnabled,

        [Parameter()]
        [System.Boolean]
        $AutoReplyEnabled,

        [Parameter()]
        [ValidateSet('Use7Bit', 'UseQP', 'UseBase64', 'UseQPHtmlDetectTextPlain', 'UseBase64HtmlDetectTextPlain', 'UseQPHtml7BitTextPlain', 'UseBase64Html7BitTextPlain', 'Undefined')]
        [System.String]
        $ByteEncoderTypeFor7BitCharsets,

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

        [Parameter()]
        [ValidateSet('MimeHtmlText', 'MimeText', 'MimeHtml')]
        [System.String]
        $ContentType,

        [Parameter()]
        [System.Boolean]
        $DeliveryReportEnabled,

        [Parameter()]
        [System.Boolean]
        $DisplaySenderName,

        [Parameter()]
        [System.Boolean]
        $IsInternal,

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

        [Parameter()]
        [System.Boolean]
        $MeetingForwardNotificationEnabled,

        [Parameter()]
        [ValidateLength(1, 64)]
        [System.String]
        $Name,

        [Parameter()]
        [System.Boolean]
        $NDREnabled,

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

        [Parameter()]
        [ValidateSet('50220', '50221', '50222', 'Undefined')]
        [System.String]
        $PreferredInternetCodePageForShiftJis,

        [Parameter()]
        [System.Int32]
        $RequiredCharsetCoverage,

        [Parameter()]
        [System.Boolean]
        $TargetDeliveryDomain,

        [Parameter()]
        [System.Boolean]
        $TNEFEnabled,

        [Parameter()]
        [System.Boolean]
        $TrustedMailInboundEnabled,

        [Parameter()]
        [System.Boolean]
        $TrustedMailOutboundEnabled,

        [Parameter()]
        [System.Boolean]
        $UseSimpleDisplayName,

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

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

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

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

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

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

        [Parameter()]
        [Switch]
        $ManagedIdentity,

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

    Write-Verbose -Message "Getting configuration of Remote Domain for $Identity"

    try
    {
        if (-not $Script:exportedInstance -or $Script:exportedInstance.Identity -ne $Identity)
        {
            $null = New-M365DSCConnection -Workload 'ExchangeOnline' `
                -InboundParameters $PSBoundParameters

            #Ensure the proper dependencies are installed in the current environment.
            Confirm-M365DSCDependencies

            #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

            $nullReturn = $PSBoundParameters
            $nullReturn.Ensure = 'Absent'

            $RemoteDomain = Get-RemoteDomain -Identity $Identity -ErrorAction SilentlyContinue
            if ($null -eq $RemoteDomain)
            {
                Write-Verbose -Message "RemoteDomain configuration for $($Identity) does not exist."
                return $nullReturn
            }
        }
        else
        {
            $RemoteDomain = $Script:exportedInstance
        }

        Write-Verbose -Message "Found RemoteDomain with Identity {$Identity}"

        $result = @{
            Identity                             = $RemoteDomain.Identity
            DomainName                           = $RemoteDomain.DomainName
            AllowedOOFType                       = $RemoteDomain.AllowedOOFType
            Ensure                               = 'Present'
            AutoForwardEnabled                   = $RemoteDomain.AutoForwardEnabled
            AutoReplyEnabled                     = $RemoteDomain.AutoReplyEnabled
            ByteEncoderTypeFor7BitCharsets       = $RemoteDomain.ByteEncoderTypeFor7BitCharsets
            CharacterSet                         = $RemoteDomain.CharacterSet
            ContentType                          = $RemoteDomain.ContentType
            DeliveryReportEnabled                = $RemoteDomain.DeliveryReportEnabled
            DisplaySenderName                    = $RemoteDomain.DisplaySenderName
            IsInternal                           = $RemoteDomain.IsInternal
            LineWrapSize                         = $RemoteDomain.LineWrapSize
            MeetingForwardNotificationEnabled    = $RemoteDomain.MeetingForwardNotificationEnabled
            Name                                 = $RemoteDomain.Name
            NDREnabled                           = $RemoteDomain.NDREnabled
            NonMimeCharacterSet                  = $RemoteDomain.NonMimeCharacterSet
            PreferredInternetCodePageForShiftJis = $RemoteDomain.PreferredInternetCodePageForShiftJis
            RequiredCharsetCoverage              = $RemoteDomain.RequiredCharsetCoverage
            TargetDeliveryDomain                 = $RemoteDomain.TargetDeliveryDomain
            TNEFEnabled                          = $RemoteDomain.TNEFEnabled
            TrustedMailInboundEnabled            = $RemoteDomain.TrustedMailInboundEnabled
            TrustedMailOutboundEnabled           = $RemoteDomain.TrustedMailOutboundEnabled
            UseSimpleDisplayName                 = $RemoteDomain.UseSimpleDisplayName
            Credential                           = $Credential
            ApplicationId                        = $ApplicationId
            CertificateThumbprint                = $CertificateThumbprint
            CertificatePath                      = $CertificatePath
            CertificatePassword                  = $CertificatePassword
            ManagedIdentity                      = $ManagedIdentity.IsPresent
            TenantId                             = $TenantId
            AccessTokens                         = $AccessTokens
        }

        return $result
    }
    catch
    {
        New-M365DSCLogEntry -Message 'Error retrieving data:' `
            -Exception $_ `
            -Source $($MyInvocation.MyCommand.Source) `
            -TenantId $TenantId `
            -Credential $Credential

        return $nullReturn
    }
}

function Set-TargetResource
{
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true)]
        [System.String]
        $Identity,

        [Parameter()]
        [ValidateLength(0, 256)]
        [System.String]
        $DomainName,

        [Parameter()]
        [ValidateSet('External', 'ExternalLegacy', 'InternalLegacy', 'None')]
        [System.String]
        $AllowedOOFType,

        [Parameter()]
        [ValidateSet('Present', 'Absent')]
        [System.String]
        $Ensure = 'Present',

        [Parameter()]
        [System.Boolean]
        $AutoForwardEnabled,

        [Parameter()]
        [System.Boolean]
        $AutoReplyEnabled,

        [Parameter()]
        [ValidateSet('Use7Bit', 'UseQP', 'UseBase64', 'UseQPHtmlDetectTextPlain', 'UseBase64HtmlDetectTextPlain', 'UseQPHtml7BitTextPlain', 'UseBase64Html7BitTextPlain', 'Undefined')]
        [System.String]
        $ByteEncoderTypeFor7BitCharsets,

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

        [Parameter()]
        [ValidateSet('MimeHtmlText', 'MimeText', 'MimeHtml')]
        [System.String]
        $ContentType,

        [Parameter()]
        [System.Boolean]
        $DeliveryReportEnabled,

        [Parameter()]
        [System.Boolean]
        $DisplaySenderName,

        [Parameter()]
        [System.Boolean]
        $IsInternal,

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

        [Parameter()]
        [System.Boolean]
        $MeetingForwardNotificationEnabled,

        [Parameter()]
        [ValidateLength(1, 64)]
        [System.String]
        $Name,

        [Parameter()]
        [System.Boolean]
        $NDREnabled,

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

        [Parameter()]
        [ValidateSet('50220', '50221', '50222', 'Undefined')]
        [System.String]
        $PreferredInternetCodePageForShiftJis,

        [Parameter()]
        [System.Int32]
        $RequiredCharsetCoverage,

        [Parameter()]
        [System.Boolean]
        $TargetDeliveryDomain,

        [Parameter()]
        [System.Boolean]
        $TNEFEnabled,

        [Parameter()]
        [System.Boolean]
        $TrustedMailInboundEnabled,

        [Parameter()]
        [System.Boolean]
        $TrustedMailOutboundEnabled,

        [Parameter()]
        [System.Boolean]
        $UseSimpleDisplayName,

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

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

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

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

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

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

        [Parameter()]
        [Switch]
        $ManagedIdentity,

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

    #Ensure the proper dependencies are installed in the current environment.
    Confirm-M365DSCDependencies

    #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 "Setting configuration of Remote Domain for $Identity"

    $currentRemoteDomainConfig = Get-TargetResource @PSBoundParameters

    $null = New-M365DSCConnection -Workload 'ExchangeOnline' `
        -InboundParameters $PSBoundParameters

    $RemoteDomainParams = Remove-M365DSCAuthenticationParameter -BoundParameters $PSBoundParameters

    # CASE: Remote Domain doesn't exist but should;
    if ($Ensure -eq 'Present' -and $currentRemoteDomainConfig.Ensure -eq 'Absent')
    {
        Write-Verbose -Message "Remote Domain '$($Name)' does not exist but it should. Create and configure it."
        # Create remote domain
        if ([System.String]::IsNullOrEmpty($Name))
        {
            $Name = $Identity
        }
        New-RemoteDomain -Name $Name -DomainName $DomainName

        $tries = 1
        $remoteDomain = $null
        do
        {
            Write-Verbose -Message 'Waiting for 10 seconds'
            Start-Sleep -Seconds 10
            $remoteDomain = Get-RemoteDomain -Identity $Name -ErrorAction SilentlyContinue
            $tries++
        } until ($null -eq $remoteDomain -or $tries -le 12)

        # Configure new remote domain
        $RemoteDomainParams.Remove('DomainName') | Out-Null
        Set-RemoteDomain @RemoteDomainParams
    }
    # CASE: Remote Domain exists but it shouldn't;
    elseif ($Ensure -eq 'Absent' -and $currentRemoteDomainConfig.Ensure -eq 'Present')
    {
        Write-Verbose -Message "Remote Domain '$($Name)' exists but it shouldn't. Remove it."
        Remove-RemoteDomain -Identity $Name -Confirm:$false
    }
    # CASE: Remote Domain exists and it should, but has different values than the desired ones
    elseif ($Ensure -eq 'Present' -and $currentRemoteDomainConfig.Ensure -eq 'Present')
    {
        Write-Verbose -Message "Remote Domain '$($Name)' already exists, but needs updating."
        Write-Verbose -Message "Setting RemoteDomain for $($Identity) with values: $(Convert-M365DscHashtableToString -Hashtable $RemoteDomainParams)"
        $RemoteDomainParams.Remove('DomainName') | Out-Null
        Set-RemoteDomain @RemoteDomainParams
    }
}

function Test-TargetResource
{
    [CmdletBinding()]
    [OutputType([System.Boolean])]
    param
    (
        [Parameter(Mandatory = $true)]
        [System.String]
        $Identity,

        [Parameter()]
        [ValidateLength(0, 256)]
        [System.String]
        $DomainName,

        [Parameter()]
        [ValidateSet('External', 'ExternalLegacy', 'InternalLegacy', 'None')]
        [System.String]
        $AllowedOOFType,

        [Parameter()]
        [ValidateSet('Present', 'Absent')]
        [System.String]
        $Ensure = 'Present',

        [Parameter()]
        [System.Boolean]
        $AutoForwardEnabled,

        [Parameter()]
        [System.Boolean]
        $AutoReplyEnabled,

        [Parameter()]
        [ValidateSet('Use7Bit', 'UseQP', 'UseBase64', 'UseQPHtmlDetectTextPlain', 'UseBase64HtmlDetectTextPlain', 'UseQPHtml7BitTextPlain', 'UseBase64Html7BitTextPlain', 'Undefined')]
        [System.String]
        $ByteEncoderTypeFor7BitCharsets,

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

        [Parameter()]
        [ValidateSet('MimeHtmlText', 'MimeText', 'MimeHtml')]
        [System.String]
        $ContentType,

        [Parameter()]
        [System.Boolean]
        $DeliveryReportEnabled,

        [Parameter()]
        [System.Boolean]
        $DisplaySenderName,

        [Parameter()]
        [System.Boolean]
        $IsInternal,

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

        [Parameter()]
        [System.Boolean]
        $MeetingForwardNotificationEnabled,

        [Parameter()]
        [ValidateLength(1, 64)]
        [System.String]
        $Name,

        [Parameter()]
        [System.Boolean]
        $NDREnabled,

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

        [Parameter()]
        [ValidateSet('50220', '50221', '50222', 'Undefined')]
        [System.String]
        $PreferredInternetCodePageForShiftJis,

        [Parameter()]
        [System.Int32]
        $RequiredCharsetCoverage,

        [Parameter()]
        [System.Boolean]
        $TargetDeliveryDomain,

        [Parameter()]
        [System.Boolean]
        $TNEFEnabled,

        [Parameter()]
        [System.Boolean]
        $TrustedMailInboundEnabled,

        [Parameter()]
        [System.Boolean]
        $TrustedMailOutboundEnabled,

        [Parameter()]
        [System.Boolean]
        $UseSimpleDisplayName,

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

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

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

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

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

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

        [Parameter()]
        [Switch]
        $ManagedIdentity,

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

    #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

    $result = Test-M365DSCTargetResource -DesiredValues $PSBoundParameters `
                                         -ResourceName $($MyInvocation.MyCommand.Source).Replace('MSFT_', '')
    return $result
}

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]
        $CertificateThumbprint,

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

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

        [Parameter()]
        [Switch]
        $ManagedIdentity,

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

    $ConnectionMode = New-M365DSCConnection -Workload 'ExchangeOnline' `
        -InboundParameters $PSBoundParameters `
        -SkipModuleReload $true

    #Ensure the proper dependencies are installed in the current environment.
    Confirm-M365DSCDependencies

    #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
    {
        [array]$AllRemoteDomains = Get-RemoteDomain -ErrorAction Stop

        $dscContent = ''

        if ($AllRemoteDomains.Length -eq 0)
        {
            Write-M365DSCHost -Message $Global:M365DSCEmojiGreenCheckMark -CommitWrite
        }
        else
        {
            Write-M365DSCHost -Message "`r`n" -DeferWrite
        }
        $i = 1
        foreach ($domain in $AllRemoteDomains)
        {
            if ($null -ne $Global:M365DSCExportResourceInstancesCount)
            {
                $Global:M365DSCExportResourceInstancesCount++
            }

            Write-M365DSCHost -Message " |---[$i/$($AllRemoteDomains.Length)] $($domain.Identity)" -DeferWrite

            $Params = @{
                Identity              = $domain.Identity
                Credential            = $Credential
                ApplicationId         = $ApplicationId
                TenantId              = $TenantId
                CertificateThumbprint = $CertificateThumbprint
                CertificatePassword   = $CertificatePassword
                ManagedIdentity       = $ManagedIdentity.IsPresent
                CertificatePath       = $CertificatePath
                AccessTokens          = $AccessTokens
            }
            $Script:exportedInstance = $domain
            $Results = Get-TargetResource @Params
            $currentDSCBlock = Get-M365DSCExportContentForResource -ResourceName $ResourceName `
                -ConnectionMode $ConnectionMode `
                -ModulePath $PSScriptRoot `
                -Results $Results `
                -Credential $Credential
            $dscContent += $currentDSCBlock
            Save-M365DSCPartialExport -Content $currentDSCBlock `
                -FileName $Global:PartialExportFileName
            Write-M365DSCHost -Message $Global:M365DSCEmojiGreenCheckMark -CommitWrite
            $i++
        }
        return $dscContent
    }
    catch
    {
        Write-M365DSCHost -Message $Global:M365DSCEmojiRedX -CommitWrite

        New-M365DSCLogEntry -Message 'Error during Export:' `
            -Exception $_ `
            -Source $($MyInvocation.MyCommand.Source) `
            -TenantId $TenantId `
            -Credential $Credential

        return ''
    }
}

Export-ModuleMember -Function *-TargetResource