DSCResources/MSFT_SPDesignerSettings/MSFT_SPDesignerSettings.psm1

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

        [parameter(Mandatory = $true)]  
        [ValidateSet("WebApplication","SiteCollection")] 
        [System.String] 
        $SettingsScope,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowSharePointDesigner,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowDetachPagesFromDefinition,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowCustomiseMasterPage,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowManageSiteURLStructure,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowCreateDeclarativeWorkflow,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowSavePublishDeclarativeWorkflow,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowSaveDeclarativeWorkflowAsTemplate,
        
        [parameter(Mandatory = $false)] 
        [System.Management.Automation.PSCredential] 
        $InstallAccount
    )

    Write-Verbose -Message "Getting SharePoint Designer configuration settings"

    switch ($SettingsScope) 
    {
        "WebApplication" {
            $result = Invoke-SPDSCCommand -Credential $InstallAccount `
                                          -Arguments $PSBoundParameters `
                                          -ScriptBlock {
                $params = $args[0]
                try 
                {
                    $spFarm = Get-SPFarm
                } 
                catch 
                {
                    Write-Verbose -Message ("No local SharePoint farm was detected. " + `
                                            "SharePoint Designer settings will not be applied")
                    return $null
                }

                # Check if web application exists
                $webapp = Get-SPWebApplication | Where-Object -FilterScript { 
                    ($_.Url).StartsWith($params.Url) 
                }
                if ($null -eq $webapp) 
                {
                    Write-Verbose -Message ("Web application not found. SharePoint Designer " + `
                                            "settings will not be applied")
                    return $null
                } 
                else 
                {
                    # Get SPD settings for the web application
                    $spdSettings = Get-SPDesignerSettings $params.Url
        
                    return @{
                        # Set the SPD settings
                        Url = $params.Url
                        SettingsScope = $params.SettingsScope
                        AllowSharePointDesigner = $spdSettings.AllowDesigner
                        AllowDetachPagesFromDefinition = $spdSettings.AllowRevertFromTemplate
                        AllowCustomiseMasterPage = $spdSettings.AllowMasterPageEditing
                        AllowManageSiteURLStructure = $spdSettings.ShowURLStructure
                        AllowCreateDeclarativeWorkflow = `
                            $spdSettings.AllowCreateDeclarativeWorkflow
                        AllowSavePublishDeclarativeWorkflow = `
                            $spdSettings.AllowSavePublishDeclarativeWorkflow
                        AllowSaveDeclarativeWorkflowAsTemplate = `
                            $spdSettings.AllowSaveDeclarativeWorkflowAsTemplate
                        InstallAccount = $params.InstallAccount
                    }
                }
            }
        }
        "SiteCollection" {
            if ((Test-SPDSCRunAsCredential -Credential $InstallAccount) -eq $true) 
            {
                $result = Invoke-SPDSCCommand -Credential $InstallAccount `
                                              -Arguments $PSBoundParameters `
                                              -ScriptBlock {
                    $params = $args[0]
        
                    try 
                    {
                        $spFarm = Get-SPFarm
                    } 
                    catch 
                    {
                        Write-Verbose -Message ("No local SharePoint farm was detected. " + `
                                                "SharePoint Designer settings will not be applied")
                        return $null
                    }

                    # Check if site collections exists
                    $site = Get-SPSite | Where-Object -FilterScript { 
                        $_.Url -eq $url 
                    }
                    if ($null -eq $site) 
                    {
                        Write-Verbose -Message ("Site collection not found. SharePoint " + `
                                                "Designer settings will not be applied")
                        return $null
                    } 
                    else 
                    {
                        return @{
                            # Set the SPD settings
                            Url = $params.Url
                            SettingsScope = $params.SettingsScope
                            AllowSharePointDesigner = $site.AllowDesigner
                            AllowDetachPagesFromDefinition = $site.AllowRevertFromTemplate
                            AllowCustomiseMasterPage = $site.AllowMasterPageEditing
                            AllowManageSiteURLStructure = $site.ShowURLStructure
                            AllowCreateDeclarativeWorkflow = $site.AllowCreateDeclarativeWorkflow
                            AllowSavePublishDeclarativeWorkflow = `
                                $site.AllowSavePublishDeclarativeWorkflow
                            AllowSaveDeclarativeWorkflowAsTemplate = `
                                $site.AllowSaveDeclarativeWorkflowAsTemplate
                            InstallAccount = $params.InstallAccount
                        }
                    }
                }
            } 
            else 
            {
                throw ("A known issue exists that prevents these settings from being managed " + `
                       "when InstallAccount is used instead of PsDscRunAsAccount. See " + `
                       "http://aka.ms/xSharePointRemoteIssues for details.")
            }
        }
    }
    return $result
}


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

        [parameter(Mandatory = $true)]  
        [ValidateSet("WebApplication","SiteCollection")] 
        [System.String] 
        $SettingsScope,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowSharePointDesigner,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowDetachPagesFromDefinition,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowCustomiseMasterPage,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowManageSiteURLStructure,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowCreateDeclarativeWorkflow,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowSavePublishDeclarativeWorkflow,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowSaveDeclarativeWorkflowAsTemplate,
        
        [parameter(Mandatory = $false)] 
        [System.Management.Automation.PSCredential] 
        $InstallAccount
    )

    Write-Verbose -Message "Setting SharePoint Designer configuration settings"

    switch ($SettingsScope) 
    {
        "WebApplication" {
            Invoke-SPDSCCommand -Credential $InstallAccount `
                                -Arguments $PSBoundParameters `
                                -ScriptBlock {
                $params = $args[0]

                try 
                {
                    $spFarm = Get-SPFarm
                } 
                catch 
                {
                    throw ("No local SharePoint farm was detected. SharePoint " + `
                           "Designer settings will not be applied")
                    return
                }
        
                Write-Verbose -Message "Start update SPD web application settings"

                # Check if web application exists
                $webapp = Get-SPWebApplication | Where-Object -FilterScript { 
                    ($_.Url).StartsWith($params.Url) 
                }
                if ($null -eq $webapp) 
                {
                    throw ("Web application not found. SharePoint Designer settings " + `
                           "will not be applied")
                    return
                } 
                else 
                {
                    # Set the SharePoint Designer settings
                    if ($params.ContainsKey("AllowSharePointDesigner")) 
                    { 
                        $webapp.AllowDesigner = $params.AllowSharePointDesigner 
                    }
                    if ($params.ContainsKey("AllowDetachPagesFromDefinition")) 
                    { 
                        $webapp.AllowRevertFromTemplate = $params.AllowDetachPagesFromDefinition 
                    }
                    if ($params.ContainsKey("AllowCustomiseMasterPage")) 
                    { 
                        $webapp.AllowMasterPageEditing = $params.AllowCustomiseMasterPage 
                    }
                    if ($params.ContainsKey("AllowManageSiteURLStructure")) 
                    {
                        $webapp.ShowURLStructure = $params.AllowManageSiteURLStructure 
                    }
                    if ($params.ContainsKey("AllowCreateDeclarativeWorkflow")) 
                    { 
                        $webapp.AllowCreateDeclarativeWorkflow = `
                            $params.AllowCreateDeclarativeWorkflow 
                    }
                    if ($params.ContainsKey("AllowSavePublishDeclarativeWorkflow")) 
                    { 
                        $webapp.AllowSavePublishDeclarativeWorkflow = `
                            $params.AllowSavePublishDeclarativeWorkflow 
                    }
                    if ($params.ContainsKey("AllowSaveDeclarativeWorkflowAsTemplate")) 
                    { 
                        $webapp.AllowSaveDeclarativeWorkflowAsTemplate = `
                            $params.AllowSaveDeclarativeWorkflowAsTemplate 
                    }
                    $webapp.Update()
                }
            }
        }
        "SiteCollection" {
            if ((Test-SPDSCRunAsCredential -Credential $InstallAccount) -eq $true)
            {
                Invoke-SPDSCCommand -Credential $InstallAccount `
                                    -Arguments $PSBoundParameters `
                                    -ScriptBlock {
                    $params = $args[0]

                    try 
                    {
                        $spFarm = Get-SPFarm
                    } 
                    catch 
                    {
                        throw ("No local SharePoint farm was detected. SharePoint Designer " + `
                               "settings will not be applied")
                        return
                    }
        
                    Write-Verbose -Message "Start update SPD site collection settings"

                    # Check if site collection exists
                    $site = Get-SPSite | Where-Object -FilterScript { 
                        $_.Url -eq $url 
                    }
                    if ($null -eq $site) 
                    {
                        throw ("Site collection not found. SharePoint Designer settings " + `
                               "will not be applied")
                        return $null
                    } 
                    else 
                    {
                        # Set the SharePoint Designer settings
                        if ($params.ContainsKey("AllowSharePointDesigner")) 
                        { 
                            $site.AllowDesigner = $params.AllowSharePointDesigner 
                        }
                        if ($params.ContainsKey("AllowDetachPagesFromDefinition")) 
                        { 
                            $site.AllowRevertFromTemplate = $params.AllowDetachPagesFromDefinition 
                        }
                        if ($params.ContainsKey("AllowCustomiseMasterPage")) 
                        { 
                            $site.AllowMasterPageEditing = $params.AllowCustomiseMasterPage 
                        }
                        if ($params.ContainsKey("AllowManageSiteURLStructure")) 
                        {
                            $site.ShowURLStructure = $params.AllowManageSiteURLStructure 
                        }
                        if ($params.ContainsKey("AllowCreateDeclarativeWorkflow")) 
                        { 
                            $site.AllowCreateDeclarativeWorkflow = `
                                $params.AllowCreateDeclarativeWorkflow 
                        }
                        if ($params.ContainsKey("AllowSavePublishDeclarativeWorkflow")) 
                        { 
                            $site.AllowSavePublishDeclarativeWorkflow = `
                                $params.AllowSavePublishDeclarativeWorkflow 
                        }
                        if ($params.ContainsKey("AllowSaveDeclarativeWorkflowAsTemplate")) 
                        { 
                            $site.AllowSaveDeclarativeWorkflowAsTemplate = `
                            $params.AllowSaveDeclarativeWorkflowAsTemplate 
                        }
                    }
                }
            } 
            else 
            {
                throw ("A known issue exists that prevents these settings from being " + `
                       "managed when InstallAccount is used instead of PsDscRunAsAccount. " + `
                       "See http://aka.ms/xSharePointRemoteIssues for details.")
            }
        }
    }
}


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

        [parameter(Mandatory = $true)]  
        [ValidateSet("WebApplication","SiteCollection")] 
        [System.String] 
        $SettingsScope,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowSharePointDesigner,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowDetachPagesFromDefinition,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowCustomiseMasterPage,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowManageSiteURLStructure,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowCreateDeclarativeWorkflow,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowSavePublishDeclarativeWorkflow,

        [parameter(Mandatory = $false)] 
        [System.Boolean] 
        $AllowSaveDeclarativeWorkflowAsTemplate,
        
        [parameter(Mandatory = $false)] 
        [System.Management.Automation.PSCredential] 
        $InstallAccount
    )

    Write-Verbose -Message "Testing SharePoint Designer configuration settings"

    $CurrentValues = Get-TargetResource @PSBoundParameters

    if ($null -eq $CurrentValues)
    {
        return $false
    }

    return Test-SPDscParameterState -CurrentValues $CurrentValues `
                                    -DesiredValues $PSBoundParameters
}

Export-ModuleMember -Function *-TargetResource