DSCResources/MSFT_PPTenantIsolationSettings/MSFT_PPTenantIsolationSettings.psm1
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function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [ValidateSet('Yes')] [System.String] $IsSingleInstance, [Parameter()] [System.Boolean] $Enabled = $true, [Parameter()] [Microsoft.Management.Infrastructure.CimInstance[]] $Rules, [Parameter()] [Microsoft.Management.Infrastructure.CimInstance[]] $RulesToInclude, [Parameter()] [Microsoft.Management.Infrastructure.CimInstance[]] $RulesToExclude, [Parameter()] [System.Management.Automation.PSCredential] $Credential ) Write-Verbose -Message 'Getting the Power Platform Tenant Isolation Settings Configuration' if ($PSBoundParameters.ContainsKey("Rules") -and ` ($PSBoundParameters.ContainsKey("RulesToInclude") -or ` $PSBoundParameters.ContainsKey("RulesToExclude"))) { $message = 'You cannot specify Rules and RulesToInclude/RulesToExclude.' Add-M365DSCEvent -Message $message -EntryType 'Error' ` -EventID 1 -Source $($MyInvocation.MyCommand.Source) throw $message } $ConnectionMode = New-M365DSCConnection -Workload 'MicrosoftGraph' ` -InboundParameters $PSBoundParameters $tenantid = (Get-MgContext).TenantId $ConnectionMode = New-M365DSCConnection -Workload 'PowerPlatforms' ` -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 try { $tenantIsolationPolicy = Get-PowerAppTenantIsolationPolicy -TenantId $tenantid [Array]$allowedTenants = $tenantIsolationPolicy.properties.allowedTenants | ForEach-Object { $directions = $_.direction if ($directions.inbound -eq $true) { if ($directions.outbound -eq $true) { $direction = 'Both' } else { $direction = 'Inbound' } } elseif ($directions.outbound -eq $true) { $direction = 'Outbound' } else { $direction = 'unknown' } return @{ TenantName = $_.tenantId Direction = $direction } } return @{ IsSingleInstance = 'Yes' Enabled = ($tenantIsolationPolicy.properties.isDisabled -eq $false) Rules = $allowedTenants Credential = $Credential } } 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('Yes')] [System.String] $IsSingleInstance, [Parameter()] [System.Boolean] $Enabled = $true, [Parameter()] [Microsoft.Management.Infrastructure.CimInstance[]] $Rules, [Parameter()] [Microsoft.Management.Infrastructure.CimInstance[]] $RulesToInclude, [Parameter()] [Microsoft.Management.Infrastructure.CimInstance[]] $RulesToExclude, [Parameter()] [System.Management.Automation.PSCredential] $Credential ) Write-Verbose -Message 'Setting Power Platform Tenant Isolation Settings configuration' if ($PSBoundParameters.ContainsKey("Rules") -and ` ($PSBoundParameters.ContainsKey("RulesToInclude") -or ` $PSBoundParameters.ContainsKey("RulesToExclude"))) { $message = 'You cannot specify Rules and RulesToInclude/RulesToExclude.' Add-M365DSCEvent -Message $message -EntryType 'Error' ` -EventID 1 -Source $($MyInvocation.MyCommand.Source) throw $message } #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 'PowerPlatforms' ` -InboundParameters $PSBoundParameters $ConnectionMode = New-M365DSCConnection -Workload 'MicrosoftGraph' ` -InboundParameters $PSBoundParameters $tenantid = (Get-MgContext).TenantId $tenantIsolationPolicy = Get-PowerAppTenantIsolationPolicy -TenantId $tenantid if ($tenantIsolationPolicy.Properties.isDisabled -ne -not $Enabled) { $tenantIsolationPolicy.Properties.isDisabled = -not $Enabled } [Array]$existingAllowedRules = $tenantIsolationPolicy.Properties.allowedTenants if ($PSBoundParameters.ContainsKey("Rules")) { Write-Verbose "Processing parameter Rules" foreach ($rule in $Rules) { # Check if Rules exist $ruleTenantId = Get-M365TenantId -TenantName $rule.TenantName $direction = [PSCustomObject]@{ inbound = $false outbound = $false } $existingRule = $existingAllowedRules | Where-Object -FilterScript { $_.tenantId -eq $ruleTenantId } if ($null -eq $existingRule) { Write-Verbose "Rule for $($rule.TenantName) does not exist. Adding with direction $($rule.Direction)" switch ($rule.Direction) { 'Inbound' { $direction.inbound = $true } 'Outbound' { $direction.outbound = $true } 'Both' { $direction.inbound = $true $direction.outbound = $true } } $newRule = [PSCustomObject]@{ tenantId = $ruleTenantId tenantDisplayName = '' direction = $direction } $existingAllowedRules += $newRule } else { Write-Verbose "Rule for $($rule.TenantName) exists. Setting specified direction." switch ($rule.Direction) { 'Inbound' { $existingRule.Direction.inbound = $true $existingRule.Direction.outbound = $false } 'Outbound' { $existingRule.Direction.inbound = $false $existingRule.Direction.outbound = $true } 'Both' { $existingRule.Direction.inbound = $true $existingRule.Direction.outbound = $true } } } } $removeRules = @() foreach ($existingRule in $existingAllowedRules) { # Check if rules are not in the specified list if ($null -eq ($Rules | Where-Object -FilterScript { (Get-M365TenantId -TenantName $_.TenantName) -eq $existingRule.tenantId })) { Write-Verbose "Rule for tenant id $($existingRule.tenantId) does not exist in the Rules parameter. Deleting rule." $removeRules += $existingRule.tenantId } } [Array]$newRules = $existingAllowedRules | Where-Object -FilterScript { $_.tenantId -notin $removeRules } $tenantIsolationPolicy.Properties.allowedTenants = $newRules } if ($PSBoundParameters.ContainsKey("RulesToInclude")) { Write-Verbose "Processing parameter RulesToInclude" foreach ($rule in $RulesToInclude) { Write-Verbose "Checking rule for TenantName $($rule.TenantName) with direction $($rule.Direction)" $ruleTenantId = Get-M365TenantId -TenantName $rule.TenantName $direction = [PSCustomObject]@{ inbound = $false outbound = $false } $existingRule = $existingAllowedRules | Where-Object -FilterScript { $_.tenantId -eq $ruleTenantId } if ($null -eq $existingRule) { Write-Verbose "Rule does not exist. Adding with direction $($rule.Direction)" # Rule does not exist, add rule switch ($rule.Direction) { 'Inbound' { $direction.inbound = $true } 'Outbound' { $direction.outbound = $true } 'Both' { $direction.inbound = $true $direction.outbound = $true } } $newRule = [PSCustomObject]@{ tenantId = $ruleTenantId tenantDisplayName = '' direction = $direction } $existingAllowedRules += $newRule } else { Write-Verbose "Rule exists. Setting specified direction." switch ($rule.Direction) { 'Inbound' { $existingRule.Direction.inbound = $true $existingRule.Direction.outbound = $false } 'Outbound' { $existingRule.Direction.inbound = $false $existingRule.Direction.outbound = $true } 'Both' { $existingRule.Direction.inbound = $true $existingRule.Direction.outbound = $true } } } } $tenantIsolationPolicy.Properties.allowedTenants = $existingAllowedRules } if ($PSBoundParameters.ContainsKey("RulesToExclude")) { Write-Verbose "Processing parameter RulesToExclude" foreach ($rule in $RulesToExclude) { Write-Verbose "Checking rule for TenantName $($rule.TenantName)" $ruleTenantId = Get-M365TenantId -TenantName $rule.TenantName $removeRules = @() if ($null -ne ($existingAllowedRules | Where-Object -FilterScript { $_.tenantId -eq $ruleTenantId })) { Write-Verbose "Rule for $($rule.TenantName) is currently configured in the rules. Deleting rule." $removeRules += $ruleTenantId } } [Array]$newRules = $existingAllowedRules | Where-Object -FilterScript { $_.tenantId -notin $removeRules } $tenantIsolationPolicy.Properties.allowedTenants = $newRules } Write-Verbose "Saving changes to the tenant" $null = Set-PowerAppTenantIsolationPolicy -TenantIsolationPolicy $tenantIsolationPolicy -TenantId $tenantId } function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [ValidateSet('Yes')] [System.String] $IsSingleInstance, [Parameter()] [System.Boolean] $Enabled = $true, [Parameter()] [Microsoft.Management.Infrastructure.CimInstance[]] $Rules, [Parameter()] [Microsoft.Management.Infrastructure.CimInstance[]] $RulesToInclude, [Parameter()] [Microsoft.Management.Infrastructure.CimInstance[]] $RulesToExclude, [Parameter()] [System.Management.Automation.PSCredential] $Credential ) Write-Verbose -Message 'Testing Power Platform Tenant Isolation Settings configuration' #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 $CurrentValues = Get-TargetResource @PSBoundParameters Write-Verbose -Message "Current Values: $(Convert-M365DscHashtableToString -Hashtable $CurrentValues)" Write-Verbose -Message "Target Values: $(Convert-M365DscHashtableToString -Hashtable $PSBoundParameters)" $result = $true $driftedRules = @{} if ($PSBoundParameters.ContainsKey("Rules")) { Write-Verbose "Processing parameter Rules" foreach ($rule in $Rules) { Write-Verbose "Checking Rule for TenantName $($rule.TenantName)." $ruleTenantId = Get-M365TenantId -TenantName $rule.TenantName $existingRule = $CurrentValues.Rules | Where-Object -FilterScript { $_.TenantName -eq $ruleTenantId } if ($null -eq $existingRule) { Write-Verbose "Rule for $($rule.TenantName) does not exist." $driftedRules.($rule.TenantName) = @{ CurrentValue = "Rule does not exist" DesiredValue = "Direction: $($rule.Direction)" } $result = $false } else { Write-Verbose "Rule for $($rule.TenantName) exists. Checking specified direction." if ($rule.Direction -ne $existingRule.Direction) { Write-Verbose "Direction for rule incorrect: Current = $($existingRule.Direction) / Desired = $($rule.Direction)" $driftedRules.($rule.TenantName) = @{ CurrentValue = "Direction: $($existingRule.Direction)" DesiredValue = "Direction: $($rule.Direction)" } $result = $false } } } foreach ($existingRule in $CurrentValues.Rules) { # Check if rules are not in the specified list if ($null -eq ($Rules | Where-Object -FilterScript { (Get-M365TenantId -TenantName $_.TenantName) -eq $existingRule.TenantName })) { Write-Verbose "Rule for tenant id $($existingRule.TenantName) does not exist in the Desired State." $driftedRules.($existingRule.TenantName) = @{ CurrentValue = "Direction: $($existingRule.Direction)" DesiredValue = "Should not exist" } $result = $false } } } if ($PSBoundParameters.ContainsKey("RulesToInclude")) { Write-Verbose "Processing parameter RulesToInclude" $driftedRules = @{} foreach ($rule in $RulesToInclude) { Write-Verbose "Checking Rule for TenantName $($rule.TenantName)." $ruleTenantId = Get-M365TenantId -TenantName $rule.TenantName $existingRule = $CurrentValues.Rules | Where-Object -FilterScript { $_.TenantName -eq $ruleTenantId } if ($null -eq $existingRule) { Write-Verbose "Rule for $($rule.TenantName) does not exist." $driftedRules.($rule.TenantName) = @{ CurrentValue = "Rule does not exist" DesiredValue = "Direction: $($rule.Direction)" } $result = $false } else { Write-Verbose "Rule for $($rule.TenantName) exists. Checking specified direction." if ($rule.Direction -ne $existingRule.Direction) { Write-Verbose "Direction for rule incorrect: Current = $($existingRule.Direction) / Desired = $($rule.Direction)" $driftedRules.($rule.TenantName) = @{ CurrentValue = "Direction: $($existingRule.Direction)" DesiredValue = "Direction: $($rule.Direction)" } $result = $false } } } } if ($PSBoundParameters.ContainsKey("RulesToExclude")) { Write-Verbose "Processing parameter RulesToExclude" $driftedRules = @{} foreach ($rule in $RulesToExclude) { Write-Verbose "Checking Rule for TenantName $($rule.TenantName)." $ruleTenantId = Get-M365TenantId -TenantName $rule.TenantName $existingRule = $CurrentValues.Rules | Where-Object -FilterScript { $_.TenantName -eq $ruleTenantId } if ($null -ne $existingRule) { Write-Verbose "Rule for $($rule.TenantName) exists." $driftedRules.($rule.TenantName) = @{ CurrentValue = "Direction: $($existingRule.Direction)" DesiredValue = "Should not exist" } $result = $false } } } if ($result -eq $false) { $message = "Tenant Isolation Rules not in the Desired State:`n" $message += "<Rules>`n" foreach ($driftedRule in $driftedRules.GetEnumerator()) { $message += " <Rule>`n" $message += " <TenantName>$($driftedRule.Name)</TenantName>`n" $message += " <CurrentValue>$($driftedRule.Value.CurrentValue)</CurrentValue>`n" $message += " <DesiredValue>$($driftedRule.Value.DesiredValue)</DesiredValue>`n" $message += " </Rule>`n" } $message += "</Rules>" Add-M365DSCEvent -Message $message -EntryType 'Error' ` -EventID 1 -Source $($MyInvocation.MyCommand.Source) Write-Verbose -Message "Test-TargetResource returned False" return $false } $TestResult = Test-M365DSCParameterState -CurrentValues $CurrentValues ` -Source $($MyInvocation.MyCommand.Source) ` -DesiredValues $PSBoundParameters ` -ValuesToCheck @("Enabled") Write-Verbose -Message "Test-TargetResource returned $TestResult" return $TestResult } function Export-TargetResource { [CmdletBinding()] [OutputType([System.String])] param ( [Parameter()] [System.Management.Automation.PSCredential] $Credential ) $ConnectionMode = New-M365DSCConnection -Workload 'PowerPlatforms' ` -InboundParameters $PSBoundParameters $ConnectionMode = New-M365DSCConnection -Workload 'MicrosoftGraph' ` -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 try { $dscContent = '' $Params = @{ IsSingleInstance = 'Yes' Credential = $Credential } $Results = Get-TargetResource @Params if ($Results.Rules.Count -gt 0) { $Results.Rules = Get-M365DSCTenantIsolationRule $Results.Rules } $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 { try { Write-Host $Global:M365DSCEmojiRedX 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 '' } } function Get-M365TenantId { param ( [Parameter(Mandatory = $true)] [System.String] $TenantName ) if ($TenantName -notmatch ".onmicrosoft.com$") { $TenantName += '.onmicrosoft.com' } $result = Invoke-WebRequest "https://login.windows.net/$TenantName/.well-known/openid-configuration" -UseBasicParsing -Verbose:$false $jsonResult = $result | ConvertFrom-Json return $jsonResult.token_endpoint.Split('/')[3] } function Get-M365DSCTenantIsolationRule { [CmdletBinding()] [OutputType([System.String])] param( [Parameter(Mandatory = $true)] [System.Collections.ArrayList] $Rules ) $StringContent = "@(" foreach ($rule in $Rules) { $StringContent += "ule {r`n" $StringContent += " TenantName = '" + $rule.TenantName + "'`r`n" $StringContent += " Direction = '" + $rule.Direction + "'`r`n" $StringContent += " }`r`n" } $StringContent += " )" return $StringContent } Export-ModuleMember -Function *-TargetResource |