SharePointDSC

1.6.0.0

Modules/SharePointDsc.WebApplication/SPWebApplication.BlockedFileTypes.psm1

function Get-SPDSCWebApplicationBlockedFileTypeConfig
{
    [CmdletBinding()]
    [OutputType([System.Collections.Hashtable])]
    param(
        [parameter(Mandatory = $true)] 
        $WebApplication
    )
    $result = @()
    $WebApplication.BlockedFileExtensions | ForEach-Object -Process { 
        $result += $_ 
    }
    return @{
       Blocked = $result
    }
}

function Set-SPDSCWebApplicationBlockedFileTypeConfig 
{
    [CmdletBinding()]
    param(
        [parameter(Mandatory = $true)] 
        $WebApplication,

        [parameter(Mandatory = $true)] 
        $Settings
    )
    
    if (($Settings.ContainsKey("Blocked") -eq $true) `
            -and (($Settings.ContainsKey("EnsureBlocked") -eq $true) `
          -or ($Settings.ContainsKey("EnsureAllowed") -eq $true))) 
    {
        throw ("Blocked file types must use either the 'blocked' property or the " + `
               "'EnsureBlocked' and/or 'EnsureAllowed' properties, but not both.")
    }

    if (($Settings.ContainsKey("Blocked") -eq $false) `
            -and ($Settings.ContainsKey("EnsureBlocked") -eq $false) `
            -and ($Settings.ContainsKey("EnsureAllowed") -eq $false)) 
    {
        throw ("Blocked file types must specify at least one property (either 'Blocked, " + `
               "'EnsureBlocked' or 'EnsureAllowed')")
    }

    if($Settings.ContainsKey("Blocked") -eq $true) 
    {
        $WebApplication.BlockedFileExtensions.Clear(); 
        $Settings.Blocked | ForEach-Object -Process {
            $WebApplication.BlockedFileExtensions.Add($_.ToLower());
        }
    }

    if($Settings.ContainsKey("EnsureBlocked") -eq $true) 
    {
        $Settings.EnsureBlocked | ForEach-Object -Process {
            if(!$WebApplication.BlockedFileExtensions.Contains($_.ToLower())){
                $WebApplication.BlockedFileExtensions.Add($_.ToLower());
            }
        }
    }

    if($Settings.ContainsKey("EnsureAllowed") -eq $true) 
    {
        $Settings.EnsureAllowed | ForEach-Object -Process {
            if($WebApplication.BlockedFileExtensions.Contains($_.ToLower())){
                $WebApplication.BlockedFileExtensions.Remove($_.ToLower());
            }
        }
    }
}

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

        [parameter(Mandatory = $true)] 
        $DesiredSettings
    )

    if (($DesiredSettings.ContainsKey("Blocked") -eq $true) `
            -and (($DesiredSettings.ContainsKey("EnsureBlocked") -eq $true) `
          -or ($DesiredSettings.ContainsKey("EnsureAllowed") -eq $true))) 
    {
        throw ("Blocked file types must use either the 'blocked' property or the " + `
               "'EnsureBlocked' and/or 'EnsureAllowed' properties, but not both.")
    }

    if (($DesiredSettings.ContainsKey("Blocked") -eq $false) `
            -and ($DesiredSettings.ContainsKey("EnsureBlocked") -eq $false) `
            -and ($DesiredSettings.ContainsKey("EnsureAllowed") -eq $false)) 
    {
        throw ("Blocked file types must specify at least one property (either 'Blocked, " + `
               "'EnsureBlocked' or 'EnsureAllowed')")
    }

    if ($DesiredSettings.ContainsKey("Blocked") -eq $true) 
    {
        $compareResult = Compare-Object -ReferenceObject $CurrentSettings.Blocked `
                                        -DifferenceObject $DesiredSettings.Blocked
        if ($null -eq $compareResult) 
        { 
            return $true 
        } 
        else 
        { 
            return $false 
        }
    }
    
    if ($DesiredSettings.ContainsKey("EnsureBlocked") -eq $true) 
    {
        $itemsToAdd = Compare-Object -ReferenceObject $CurrentSettings.Blocked `
                                     -DifferenceObject $DesiredSettings.EnsureBlocked | Where-Object { 
                                         $_.SideIndicator -eq "=>"
                                        }
        if ($null -ne $itemsToAdd) 
        { 
            return $false 
        }
    }

    if ($DesiredSettings.ContainsKey("EnsureAllowed") -eq $true) 
    {
        $itemsToRemove = Compare-Object -ReferenceObject $CurrentSettings.Blocked `
                                        -DifferenceObject $DesiredSettings.EnsureAllowed `
                                        -ExcludeDifferent -IncludeEqual
        if ($null -ne $itemsToRemove) 
        { 
            return $false 
        } 
    }
    return $true
}