DSCResources/MSFT_EXOPolicyTipConfig/MSFT_EXOPolicyTipConfig.psm1

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

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

        [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 Policy Tip configuration for $Name"
    #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
    }

    $command = Get-Command Get-PolicyTipConfig -ErrorAction SilentlyContinue
    if ($null -eq $command)
    {
        New-M365DSCLogEntry -Error $_ -Message "Get-PolicyTipConfig is not available in the tenant" `
            -Source $MyInvocation.MyCommand.ModuleName
        throw "EXOPolicyTipConfig is not supported in the current tenant."
    }
    $nullReturn = $PSBoundParameters
    $nullReturn.Ensure = "Absent"

    try
    {
        $AllPolicyTips = Get-PolicyTipConfig -Erroraction Stop

        $PolicyTipConfig = $AllPolicyTips | Where-Object -FilterScript { $_.Name -eq $Name }

        if ($null -eq $PolicyTipConfig)
        {
            Write-Verbose -Message "Policy Tip Config $($Name) does not exist."
            return $nullReturn
        }
        else
        {
            $result = @{
                Name               = $PolicyTipConfig.Name
                Value              = $PolicyTipConfig.Value
                Ensure             = 'Present'
                GlobalAdminAccount = $GlobalAdminAccount
            }

            Write-Verbose -Message "Found Policy Tip Config $($Name)"
            return $result
        }
    }
    catch
    {
        Write-Verbose -Message $_
        Add-M365DSCEvent -Message $_ -EntryType 'Error' `
            -EventID 1 -Source $($MyInvocation.MyCommand.Source)
        return $nullReturn
    }
}

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

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

        [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 "Setting Policy Tip config for $Name"

    $currentPolicyTipConfig = Get-TargetResource @PSBoundParameters

    #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

    $NewPolicyTipConfigParams = @{
        Name    = $Name
        Value   = $Value
        Confirm = $false
    }

    $SetPolicyTipConfigParams = @{
        Identity = $Name
        Value    = $Value
        Confirm  = $false
    }

    # CASE: Policy Tip Config doesn't exist but should;
    if ($Ensure -eq "Present" -and $currentPolicyTipConfig.Ensure -eq "Absent")
    {
        Write-Verbose -Message "Policy Tip Config '$($Name)' does not exist but it should. Create and configure it."
        # Create Policy Tip Config
        New-PolicyTipConfig @NewPolicyTipConfigParams

    }
    # CASE: Policy Tip Config exists but it shouldn't;
    elseif ($Ensure -eq "Absent" -and $currentPolicyTipConfig.Ensure -eq "Present")
    {
        Write-Verbose -Message "Policy Tip Config '$($Name)' exists but it shouldn't. Remove it."
        Remove-PolicyTipConfig -Identity $Name -Confirm:$false
    }
    # CASE: Policy Tip Config exists and it should, but has different values than the desired ones
    elseif ($Ensure -eq "Present" -and $currentPolicyTipConfig.Ensure -eq "Present")
    {
        Write-Verbose -Message "Policy Tip Config '$($Name)' already exists, but needs updating."
        Write-Verbose -Message "Setting Policy Tip Config $($Name) with values: $(Convert-M365DscHashtableToString -Hashtable $SetPolicyTipConfigParams)"
        Set-PolicyTipConfig @SetPolicyTipConfigParams
    }
}

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

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

        [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 Policy Tip Config for $Name"

    $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-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
    {
        $dscContent = ""
        $command = Get-Command Get-PolicyTipConfig -ErrorAction SilentlyContinue
        if ($null -ne $command)
        {
            [array]$AllPolicyTips = Get-PolicyTipConfig

            $i = 1
            if ($AllPolicyTips.Length -eq 0)
            {
                Write-Host $Global:M365DSCEmojiGreenCheckMark
            }
            else
            {
                Write-Host "`r`n" -NoNewLine
            }
            foreach ($PolicyTipConfig in $AllPolicyTips)
            {
                Write-Host " |---[$i/$($AllPolicyTips.Length)] $($PolicyTipConfig.Name)" -NoNewLine

                $Params = @{
                    Name                  = $PolicyTipConfig.Name
                    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
    }
    catch
    {
        Write-Verbose -Message $_
        Add-M365DSCEvent -Message $_ -EntryType 'Error' `
            -EventID 1 -Source $($MyInvocation.MyCommand.Source)
        return ""
    }
}

Export-ModuleMember -Function *-TargetResource