DSCResources/MSFT_EXOApplicationAccessPolicy/MSFT_EXOApplicationAccessPolicy.psm1
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function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [System.String] $Identity, [Parameter()] [ValidateSet('RestrictAccess', 'DenyAccess')] [System.String] $AccessRight, [Parameter()] [System.String[]] $AppID, [Parameter()] [System.String] $PolicyScopeGroupId, [Parameter()] [System.String] $Description, [Parameter()] [ValidateSet('Present', 'Absent')] [System.String] $Ensure = 'Present', [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 ) Write-Verbose -Message "Getting Application Access Policy configuration for $Identity" if ($Global:CurrentModeIsExport) { $ConnectionMode = New-M365DSCConnection -Workload 'ExchangeOnline' ` -InboundParameters $PSBoundParameters ` -SkipModuleReload $true } else { $ConnectionMode = 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' try { try { $AllApplicationAccessPolicies = Get-ApplicationAccessPolicy -ErrorAction Stop } catch { if ($_.Exception -like "The operation couldn't be performed because object*") { Write-Verbose 'Could not obtain Application Access Policies for Tenant' return $nullReturn } } $ApplicationAccessPolicy = $AllApplicationAccessPolicies | Where-Object -FilterScript { $_.Identity -eq $Identity } if ($null -eq $ApplicationAccessPolicy) { Write-Verbose -Message "Application Access Policy $($Identity) does not exist." return $nullReturn } else { $result = @{ Identity = $ApplicationAccessPolicy.Identity AccessRight = $ApplicationAccessPolicy.AccessRight AppID = $ApplicationAccessPolicy.AppID PolicyScopeGroupId = $ApplicationAccessPolicy.ScopeIdentity Description = $ApplicationAccessPolicy.Description Ensure = 'Present' Credential = $Credential ApplicationId = $ApplicationId CertificateThumbprint = $CertificateThumbprint CertificatePath = $CertificatePath CertificatePassword = $CertificatePassword Managedidentity = $ManagedIdentity.IsPresent TenantId = $TenantId } Write-Verbose -Message "Found Application Access Policy $($Identity)" 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()] [ValidateSet('RestrictAccess', 'DenyAccess')] [System.String] $AccessRight, [Parameter()] [System.String[]] $AppID, [Parameter()] [System.String] $PolicyScopeGroupId, [Parameter()] [System.String] $Description, [Parameter()] [ValidateSet('Present', 'Absent')] [System.String] $Ensure = 'Present', [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 ) Write-Verbose -Message "Setting Application Access Policy configuration for $Identity" $currentApplicationAccessPolicyConfig = Get-TargetResource @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 $ConnectionMode = New-M365DSCConnection -Workload 'ExchangeOnline' ` -InboundParameters $PSBoundParameters $NewApplicationAccessPolicyParams = @{ AccessRight = $AccessRight AppID = $AppID PolicyScopeGroupId = $PolicyScopeGroupId Description = $Description Confirm = $false } $SetApplicationAccessPolicyParams = @{ Identity = $Identity Description = $Description Confirm = $false } # CASE: Application Access Policy doesn't exist but should; if ($Ensure -eq 'Present' -and $currentApplicationAccessPolicyConfig.Ensure -eq 'Absent') { Write-Verbose -Message "Application Access Policy '$($Identity)' does not exist but it should. Create and configure it." # Create Application Access Policy New-ApplicationAccessPolicy @NewApplicationAccessPolicyParams } # CASE: Application Access Policy exists but it shouldn't; elseif ($Ensure -eq 'Absent' -and $currentApplicationAccessPolicyConfig.Ensure -eq 'Present') { Write-Verbose -Message "Application Access Policy '$($Identity)' exists but it shouldn't. Remove it." Remove-ApplicationAccessPolicy -Identity $Identity -Confirm:$false } # CASE: Application Access Policy exists and it should, but Description attribute has different values than desired (Set-ApplicationAccessPolicy is only able to change description attribute) elseif ($Ensure -eq 'Present' -and $currentApplicationAccessPolicyConfig.Ensure -eq 'Present' -and $currentApplicationAccessPolicyConfig.Description -ne $Description) { Write-Verbose -Message "Application Access Policy '$($Identity)' already exists, but needs updating." Write-Verbose -Message "Setting Application Access Policy $($Identity) with values: $(Convert-M365DscHashtableToString -Hashtable $SetApplicationAccessPolicyParams)" Set-ApplicationAccessPolicy @SetApplicationAccessPolicyParams } # CASE: Application Access Policy exists and it should, but has different values than the desired one # Set-ApplicationAccessPolicy is only able to change description attribute, therefore re-create policy elseif ($Ensure -eq 'Present' -and $currentApplicationAccessPolicyConfig.Ensure -eq 'Present' -and $currentApplicationAccessPolicyConfig.Description -eq $Description) { Write-Verbose -Message "Re-create Application Access Policy '$($Identity)'" Remove-ApplicationAccessPolicy -Identity $Identity -Confirm:$false New-ApplicationAccessPolicy @NewApplicationAccessPolicyParams } } function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [System.String] $Identity, [Parameter()] [ValidateSet('RestrictAccess', 'DenyAccess')] [System.String] $AccessRight, [Parameter()] [System.String[]] $AppID, [Parameter()] [System.String] $PolicyScopeGroupId, [Parameter()] [System.String] $Description, [Parameter()] [ValidateSet('Present', 'Absent')] [System.String] $Ensure = 'Present', [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 ) #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 "Testing Application Access Policy configuration 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('Credential') | Out-Null $ValuesToCheck.Remove('ApplicationId') | Out-Null $ValuesToCheck.Remove('TenantId') | Out-Null $ValuesToCheck.Remove('CertificateThumbprint') | Out-Null $ValuesToCheck.Remove('CertificatePath') | Out-Null $ValuesToCheck.Remove('CertificatePassword') | Out-Null $ValuesToCheck.Remove('ManagedIdentity') | 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] $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 ) $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 $data #endregion try { try { [array]$AllApplicationAccessPolicies = Get-ApplicationAccessPolicy -ErrorAction SilentlyContinue } catch { if ($_.Exception -like "*The operation couldn't be performed because object*") { Write-Host "`r`n $($Global:M365DSCEmojiYellowCircle) The current tenant is not registered to allow for Application Access Policies" return '' } throw $_ } $dscContent = '' if ($AllApplicationAccessPolicies.Length -eq 0) { Write-Host $Global:M365DSCEmojiGreenCheckMark } else { Write-Host "`r`n" -NoNewline } $i = 1 foreach ($ApplicationAccessPolicy in $AllApplicationAccessPolicies) { Write-Host " |---[$i/$($AllApplicationAccessPolicies.Count)] $($ApplicationAccessPolicy.Identity)" -NoNewline $Params = @{ Identity = $ApplicationAccessPolicy.Identity Credential = $Credential ApplicationId = $ApplicationId TenantId = $TenantId CertificateThumbprint = $CertificateThumbprint CertificatePassword = $CertificatePassword Managedidentity = $ManagedIdentity.IsPresent CertificatePath = $CertificatePath } $Results = Get-TargetResource @Params $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 $i++ } return $dscContent } catch { Write-Host $Global:M365DSCEmojiRedX New-M365DSCLogEntry -Message 'Error during Export:' ` -Exception $_ ` -Source $($MyInvocation.MyCommand.Source) ` -TenantId $TenantId ` -Credential $Credential return '' } } Export-ModuleMember -Function *-TargetResource |