DSCResources/MSFT_EXOAtpPolicyForO365/MSFT_EXOAtpPolicyForO365.psm1

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

        [Parameter()]
        [System.String]
        $Identity = 'Default',

        [Parameter()]
        [Boolean]
        $AllowClickThrough = $true,

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

        [Parameter()]
        [Boolean]
        $EnableATPForSPOTeamsODB = $false,

        [Parameter()]
        [Boolean]
        $EnableSafeDocs  = $false,

        [Parameter()]
        [Boolean]
        $EnableSafeLinksForO365Clients = $true,

        [Parameter()]
        [Boolean]
        $TrackClicks = $true,

        [Parameter()]
        [ValidateSet('Present')]
        [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 AtpPolicyForO365 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
    }

    $nullReturn = $PSBoundParameters
    $nullReturn.Ensure = 'Absent'
    try
    {
        $AtpPolicies = Get-AtpPolicyForO365 -ErrorAction Stop

        $AtpPolicyForO365 = $AtpPolicies | Where-Object -FilterScript { $_.Identity -eq $Identity }
        if (-not $AtpPolicyForO365)
        {
            Write-Verbose -Message "AtpPolicyForO365 $($Identity) does not exist."
            return $nullReturn
        }
        else
        {
            $result = @{
                IsSingleInstance                = "Yes"
                Identity                        = $AtpPolicyForO365.Identity
                AllowClickThrough               = $AtpPolicyForO365.AllowClickThrough
                BlockUrls                       = $AtpPolicyForO365.BlockUrls
                EnableATPForSPOTeamsODB         = $AtpPolicyForO365.EnableATPForSPOTeamsODB
                EnableSafeDocs                  = $AtpPolicyForO365.EnableSafeDocs
                EnableSafeLinksForO365Clients   = $AtpPolicyForO365.EnableSafeLinksForO365Clients
                TrackClicks                     = $AtpPolicyForO365.TrackClicks
                Ensure                          = 'Present'
            }

            Write-Verbose -Message "Found AtpPolicyForO365 $($Identity)"
            Write-Verbose -Message "Get-TargetResource Result: `n $(Convert-M365DscHashtableToString -Hashtable $result)"
            return $result
        }
    }
    catch
    {
        try
        {
            Write-Verbose -Message $_
            $tenantIdValue = ""
            if (-not [System.String]::IsNullOrEmpty($TenantId))
            {
                $tenantIdValue = $TenantId
            }
            elseif ($null -ne $GlobalAdminAccount)
            {
                $tenantIdValue = $GlobalAdminAccount.UserName.Split('@')[1]
            }
            Add-M365DSCEvent -Message $_ -EntryType 'Error' `
                -EventID 1 -Source $($MyInvocation.MyCommand.Source) `
                -TenantId $tenantIdValue
        }
        catch
        {
            Write-Verbose -Message $_
        }
        return $nullReturn
    }
}

function Set-TargetResource
{
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true)]
        [ValidateSet('Yes')]
        [String]
        $IsSingleInstance,

        [Parameter()]
        [System.String]
        $Identity = 'Default',

        [Parameter()]
        [Boolean]
        $AllowClickThrough = $true,

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

        [Parameter()]
        [Boolean]
        $EnableATPForSPOTeamsODB = $false,

        [Parameter()]
        [Boolean]
        $EnableSafeDocs  = $false,

        [Parameter()]
        [Boolean]
        $EnableSafeLinksForO365Clients = $true,

        [Parameter()]
        [Boolean]
        $TrackClicks = $true,

        [Parameter()]
        [ValidateSet('Present')]
        [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 "Setting configuration of AtpPolicyForO365 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 ('Default' -ne $Identity)
    {
        throw "EXOAtpPolicyForO365 configurations MUST specify Identity value of 'Default'"
    }

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

    $AtpPolicyParams = $PSBoundParameters
    $AtpPolicyParams.Remove('Ensure') | Out-Null
    $AtpPolicyParams.Remove('GlobalAdminAccount') | Out-Null
    $AtpPolicyParams.Remove('IsSingleInstance') | Out-Null
    Write-Verbose -Message "Setting AtpPolicyForO365 $Identity with values: $(Convert-M365DscHashtableToString -Hashtable $AtpPolicyParams)"
    Set-AtpPolicyForO365 @AtpPolicyParams
}

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

        [Parameter()]
        [System.String]
        $Identity = 'Default',

        [Parameter()]
        [Boolean]
        $AllowClickThrough = $true,

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

        [Parameter()]
        [Boolean]
        $EnableATPForSPOTeamsODB = $false,

        [Parameter()]
        [Boolean]
        $EnableSafeDocs  = $false,

        [Parameter()]
        [Boolean]
        $EnableSafeLinksForO365Clients = $true,

        [Parameter()]
        [Boolean]
        $TrackClicks = $true,

        [Parameter()]
        [ValidateSet('Present')]
        [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 "Testing configuration of AtpPolicyForO365 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
    $ValuesToCheck.Remove('IsSingleInstance') | Out-Null
    $ValuesToCheck.Remove('Verbose') | Out-Null

    $TestResult = Test-M365DSCParameterState -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

    try
    {
        if (Confirm-ImportedCmdletIsAvailable -CmdletName Get-AtpPolicyForO365)
        {
            [array]$ATPPolicies = Get-AtpPolicyForO365 -ErrorAction Stop
            $dscContent = ""

            if ($ATPPolicies.Length -eq 0)
            {
                Write-Host $Global:M365DSCEmojiGreenCheckMark
            }
            else
            {
                Write-Host "`r`n" -NoNewLine
            }
            $i = 1
            foreach ($atpPolicy in $ATPPolicies)
            {
                $Params = @{
                    IsSingleInstance      = 'Yes'
                    Identity              = $atpPolicy.Identity
                    GlobalAdminAccount    = $GlobalAdminAccount
                    ApplicationId         = $ApplicationId
                    TenantId              = $TenantId
                    CertificateThumbprint = $CertificateThumbprint
                    CertificatePassword   = $CertificatePassword
                    CertificatePath       = $CertificatePath
                }
                Write-Host " |---[$i/$($ATPPolicies.Length)] $($atpPolicy.Identiy)" -NoNewLine
                $Results = Get-TargetResource @Params
                if ($Results.Ensure -eq "Present")
                {
                    $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++
            }
        }
        else
        {
            Write-Host "`r`n $($Global:M365DSCEmojiYellowCircle) The current tenant is not registered to allow for ATP Policies"
        }
        return $dscContent
    }
    catch
    {
        try
        {
            Write-Verbose -Message $_
            $tenantIdValue = ""
            if (-not [System.String]::IsNullOrEmpty($TenantId))
            {
                $tenantIdValue = $TenantId
            }
            elseif ($null -ne $GlobalAdminAccount)
            {
                $tenantIdValue = $GlobalAdminAccount.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