DSCResources/MSFT_EXOMalwareFilterPolicy/MSFT_EXOMalwareFilterPolicy.psm1

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

        [Parameter()]
        [ValidateSet('DeleteMessage', 'DeleteAttachmentAndUseDefaultAlert', 'DeleteAttachmentAndUseCustomAlert')]
        [System.String]
        $Action,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        [Parameter()]
        [System.String[]]
        $FileTypes = @(),

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

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

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

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

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

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

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

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

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

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

    Write-Verbose -Message "Getting configuration of MalwareFilterPolicy for $($Identity)"
    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace("MSFT_", "")
    $data = [System.Collections.Generic.Dictionary[[String], [String]]]::new()
    $data.Add("Resource", $ResourceName)
    $data.Add("Method", $MyInvocation.MyCommand)
    $data.Add("Principal", $GlobalAdminAccount.UserName)
    $data.Add("TenantId", $TenantId)
    Add-M365DSCTelemetryEvent -Data $data
    #endregion

    if ($Global:CurrentModeIsExport)
    {
        $ConnectionMode = New-M365DSCConnection -Platform 'ExchangeOnline' `
            -InboundParameters $PSBoundParameters `
            -SkipModuleReload $true
    }
    else
    {
        $ConnectionMode = New-M365DSCConnection -Platform 'ExchangeOnline' `
            -InboundParameters $PSBoundParameters
    }

    $MalwareFilterPolicys = Get-MalwareFilterPolicy

    $MalwareFilterPolicy = $MalwareFilterPolicys | Where-Object -FilterScript { $_.Identity -eq $Identity }
    if ($null -eq $MalwareFilterPolicy)
    {
        Write-Verbose -Message "MalwareFilterPolicy $($Identity) does not exist."
        $result = $PSBoundParameters
        $result.Ensure = 'Absent'
        return $result
    }
    else
    {
        $ActionValue = $MalwareFilterPolicy.Action
        if ($ActionValue -eq 'DeleteAttachmentAndUseDefaultAlertText')
        {
            $ActionValue = 'DeleteAttachmentAndUseDefaultAlert'
        }
        elseif ($ActionValue -eq 'DeleteAttachmentAndUseCustomAlertText')
        {
            $ActionValue = 'DeleteAttachmentAndUseCustomAlert'
        }
        $result = @{
            Identity                               = $Identity
            Action                                 = $ActionValue
            AdminDisplayName                       = $MalwareFilterPolicy.AdminDisplayName
            CustomAlertText                        = $MalwareFilterPolicy.CustomAlertText
            CustomExternalBody                     = $MalwareFilterPolicy.CustomExternalBody
            CustomExternalSubject                  = $MalwareFilterPolicy.CustomExternalSubject
            CustomFromAddress                      = $MalwareFilterPolicy.CustomFromAddress
            CustomFromName                         = $MalwareFilterPolicy.CustomFromName
            CustomInternalBody                     = $MalwareFilterPolicy.CustomInternalBody
            CustomInternalSubject                  = $MalwareFilterPolicy.CustomInternalSubject
            CustomNotifications                    = $MalwareFilterPolicy.CustomNotifications
            EnableExternalSenderAdminNotifications = $MalwareFilterPolicy.EnableExternalSenderAdminNotifications
            EnableExternalSenderNotifications      = $MalwareFilterPolicy.EnableExternalSenderNotifications
            EnableFileFilter                       = $MalwareFilterPolicy.EnableFileFilter
            EnableInternalSenderAdminNotifications = $MalwareFilterPolicy.EnableInternalSenderAdminNotifications
            EnableInternalSenderNotifications      = $MalwareFilterPolicy.EnableInternalSenderNotifications
            ExternalSenderAdminAddress             = $MalwareFilterPolicy.ExternalSenderAdminAddress
            FileTypes                              = $MalwareFilterPolicy.FileTypes
            InternalSenderAdminAddress             = $MalwareFilterPolicy.InternalSenderAdminAddress
            MakeDefault                            = $MalwareFilterPolicy.MakeDefault
            ZapEnabled                             = $MalwareFilterPolicy.ZapEnabled
            GlobalAdminAccount                     = $GlobalAdminAccount
            Ensure                                 = 'Present'
        }

        Write-Verbose -Message "Found MalwareFilterPolicy $($Identity)"
        Write-Verbose -Message "Get-TargetResource Result: `n $(Convert-M365DscHashtableToString -Hashtable $result)"
        return $result
    }
}
function Set-TargetResource
{
    [CmdletBinding()]

    param
    (
        [Parameter(Mandatory = $true)]
        [System.String]
        $Identity,

        [Parameter()]
        [ValidateSet('DeleteMessage', 'DeleteAttachmentAndUseDefaultAlert', 'DeleteAttachmentAndUseCustomAlert')]
        [System.String]
        $Action,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        [Parameter()]
        [System.String[]]
        $FileTypes = @(),

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

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

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

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

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

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

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

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

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

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $CertificatePassword
    )
    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace("MSFT_", "")
    $data = [System.Collections.Generic.Dictionary[[String], [String]]]::new()
    $data.Add("Resource", $ResourceName)
    $data.Add("Method", $MyInvocation.MyCommand)
    $data.Add("Principal", $GlobalAdminAccount.UserName)
    $data.Add("TenantId", $TenantId)
    Add-M365DSCTelemetryEvent -Data $data
    #endregion
    Write-Verbose -Message "Setting configuration of MalwareFilterPolicy for $($Identity)"

    $ConnectionMode = New-M365DSCConnection -Platform 'ExchangeOnline' `
        -InboundParameters $PSBoundParameters

    $MalwareFilterPolicys = Get-MalwareFilterPolicy
    $MalwareFilterPolicy = $MalwareFilterPolicys | Where-Object -FilterScript { $_.Identity -eq $Identity }
    $MalwareFilterPolicyParams = $PSBoundParameters
    $MalwareFilterPolicyParams.Remove('Ensure') | Out-Null
    $MalwareFilterPolicyParams.Remove('GlobalAdminAccount') | Out-Null

    if (('Present' -eq $Ensure ) -and ($null -eq $MalwareFilterPolicy))
    {
        Write-Verbose -Message "Creating MalwareFilterPolicy $($Identity)."
        $MalwareFilterPolicyParams.Add("Name", $Identity)
        $MalwareFilterPolicyParams.Remove('Identity') | Out-Null
        $MalwareFilterPolicyParams.Remove('MakeDefault') | Out-Null
        New-MalwareFilterPolicy @MalwareFilterPolicyParams
    }
    elseif (('Present' -eq $Ensure ) -and ($Null -ne $MalwareFilterPolicy))
    {
        Write-Verbose -Message "Setting MalwareFilterPolicy $($Identity) with values: $(Convert-M365DscHashtableToString -Hashtable $MalwareFilterPolicyParams)"
        Set-MalwareFilterPolicy @MalwareFilterPolicyParams -Confirm:$false
    }
    elseif (('Absent' -eq $Ensure ) -and ($null -ne $MalwareFilterPolicy))
    {
        Write-Verbose -Message "Removing MalwareFilterPolicy $($Identity)"
        Remove-MalwareFilterPolicy -Identity $Identity -Confirm:$false
    }
}

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

        [Parameter()]
        [ValidateSet('DeleteMessage', 'DeleteAttachmentAndUseDefaultAlert', 'DeleteAttachmentAndUseCustomAlert')]
        [System.String]
        $Action,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        [Parameter()]
        [System.String[]]
        $FileTypes = @(),

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

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

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

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

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

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

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

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

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

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

    Write-Verbose -Message "Testing configuration of MalwareFilterPolicy for $($Identity)"

    $CurrentValues = Get-TargetResource @PSBoundParameters

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

    $ValuesToCheck = $PSBoundParameters
    $ValuesToCheck.Remove('GlobalAdminAccount') | Out-Null

    $TestResult = Test-Microsoft365DSCParameterState -CurrentValues $CurrentValues `
        -Source $($MyInvocation.MyCommand.Source) `
        -DesiredValues $PSBoundParameters `
        -ValuesToCheck $ValuesToCheck.Keys

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

    return $TestResult
}

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

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

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

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

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

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $CertificatePassword
    )
    #region Telemetry
    $ResourceName = $MyInvocation.MyCommand.ModuleName.Replace("MSFT_", "")
    $data = [System.Collections.Generic.Dictionary[[String], [String]]]::new()
    $data.Add("Resource", $ResourceName)
    $data.Add("Method", $MyInvocation.MyCommand)
    $data.Add("Principal", $GlobalAdminAccount.UserName)
    $data.Add("TenantId", $TenantId)
    Add-M365DSCTelemetryEvent -Data $data
    #endregion
    $ConnectionMode = New-M365DSCConnection -Platform 'ExchangeOnline' `
        -InboundParameters $PSBoundParameters `
        -SkipModuleReload $true

    [array]$MalwareFilterPolicys = Get-MalwareFilterPolicy
    if ($MalwareFilterPolicys.Length -eq 0)
    {
        Write-Host $Global:M365DSCEmojiGreenCheckMark
    }
    else
    {
        Write-Host "`r`n" -NoNewLine
    }
    $dscContent = ""
    $i = 1
    foreach ($MalwareFilterPolicy in $MalwareFilterPolicys)
    {
        Write-Host " |---[$i/$($MalwareFilterPolicys.length)] $($MalwareFilterPolicy.Identity)" -NoNewLine

        $Params = @{
            Identity              = $MalwareFilterPolicy.Identity
            GlobalAdminAccount    = $GlobalAdminAccount
            ApplicationId         = $ApplicationId
            TenantId              = $TenantId
            CertificateThumbprint = $CertificateThumbprint
            CertificatePassword   = $CertificatePassword
            CertificatePath       = $CertificatePath
        }

        $Results = Get-TargetResource @Params
        $Results = Update-M365DSCExportAuthenticationResults -ConnectionMode $ConnectionMode `
            -Results $Results
        $dscContent += Get-M365DSCExportContentForResource -ResourceName $ResourceName `
            -ConnectionMode $ConnectionMode `
            -ModulePath $PSScriptRoot `
            -Results $Results `
            -GlobalAdminAccount $GlobalAdminAccount
        Write-Host $Global:M365DSCEmojiGreenCheckMark
        $i++
    }
    return $dscContent
}
Export-ModuleMember -Function *-TargetResource