Permission.psm1
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function Get-FolderAccessList { param ( # Path to the item whose permissions to export $FolderTargets, <# How many levels of subfolder to enumerate Set to 0 to ignore all subfolders Set to -1 (default) to recurse infinitely Set to any whole number to enumerate that many levels #> $LevelsOfSubfolders, # Will be sent to the Type parameter of Write-LogMsg in the PsLogMessage module [string]$DebugOutputStream = 'Silent', # Hostname to record in log messages (can be passed to Write-LogMsg as a parameter to avoid calling an external process) [string]$TodaysHostname = (HOSTNAME.EXE), # Username to record in log messages (can be passed to Write-LogMsg as a parameter to avoid calling an external process) [string]$WhoAmI = (whoami.EXE), # Hashtable of log messages for Write-LogMsg (can be thread-safe if a synchronized hashtable is provided) [hashtable]$LogMsgCache = $Global:LogMessages ) $LogParams = @{ LogMsgCache = $LogMsgCache ThisHostname = $TodaysHostname Type = $DebugOutputStream WhoAmI = $WhoAmI } ForEach ($ThisFolder in $FolderTargets) { $Subfolders = $null $Subfolders = Get-Subfolder -TargetPath $ThisFolder -FolderRecursionDepth $LevelsOfSubfolders -ErrorAction Continue Write-LogMsg @LogParams -Text "Folders (including parent): $($Subfolders.Count + 1)" Get-FolderAce -LiteralPath $ThisFolder -IncludeInherited if ($Subfolders) { $GetFolderAce = @{ Command = 'Get-FolderAce' InputObject = $Subfolders InputParameter = 'LiteralPath' DebugOutputStream = $DebugOutputStream TodaysHostname = $TodaysHostname WhoAmI = $WhoAmI LogMsgCache = $LogMsgCache } Split-Thread @GetFolderAce } } } function Get-FolderPermissionsBlock { param ( $FolderPermissions, # Regular expressions matching names of Users or Groups to exclude from the Html report [string[]]$ExcludeAccount, $ExcludeEmptyGroups, # Regular expressions matching domain NetBIOS names to ignore # They will be removed from NTAccount names ('CONTOSO\User' will become 'User') # Include the trailing \ in the RegEx pattern, and escape it with another \ # Example: 'CONTOSO\\' $IgnoreDomain ) $ShortestFolderPath = $ThisFolder.Name | Sort-Object | Select-Object -First 1 ForEach ($ThisFolder in $FolderPermissions) { $ThisHeading = New-HtmlHeading "Accounts with access to $($ThisFolder.Name)" -Level 5 $Leaf = $ThisFolder.Name | Split-Path -Parent | Split-Path -Leaf -ErrorAction SilentlyContinue if ($Leaf) { $ParentLeaf = $Leaf } else { $ParentLeaf = $ThisFolder.Name | Split-Path -Parent } if ('' -ne $ParentLeaf) { if (($ThisFolder.Group.FolderInheritanceEnabled | Select-Object -First 1) -eq $true) { if ($ThisFolder.Name -eq $ShortestFolderPath) { $ThisSubHeading = "Inherited permissions from the parent folder ($ParentLeaf) are included. This folder can only be accessed by the users listed below:" } else { $ThisSubHeading = "Accounts with access to the parent folder and subfolders ($ParentLeaf) can access this folder. So can any users listed below:" } } else { $ThisSubHeading = "Accounts with access to the parent folder and subfolders ($ParentLeaf) cannot access this folder unless they are listed below:" } } else { $ThisSubHeading = "This is the top-level folder. It can only be accessed by the users listed below:" } $FilteredAccounts = $ThisFolder.Group | Group-Object -Property Account | # Skip the accounts we need to skip Where-Object -FilterScript { ![bool]$( ForEach ($RegEx in $ExcludeAccount) { if ($_.Name -match $RegEx) { $true } } ) } # Exclude groups with members (the group will be reflected on the report with its members) $FilteredAccounts = $FilteredAccounts | Where-Object -FilterScript { -not ( $_.Group.SchemaClassName -contains 'group' -and $null -eq $_.Group.IdentityReference ) } if ($ExcludeEmptyGroups) { $FilteredAccounts = $FilteredAccounts | Where-Object -FilterScript { # Eliminate empty groups (not useful to see in the middle of a list of users/job titles/departments/etc). $_.Group.SchemaClassName -notcontains 'group' } } $ThisTable = $FilteredAccounts | Select-Object -Property @{Label = 'Account'; Expression = { $_.Name } }, @{Label = 'Access'; Expression = { ($_.Group | Sort-Object -Property IdentityReference -Unique).Access -join ' ; ' } }, @{Label = 'Due to Membership In'; Expression = { $GroupString = ($_.Group.IdentityReference | Sort-Object -Unique) -join ' ; ' ForEach ($IgnoreThisDomain in $IgnoreDomain) { $GroupString = $GroupString -replace $IgnoreThisDomain, '' } $GroupString } }, @{Label = 'Name'; Expression = { $_.Group.Name | Sort-Object -Unique } }, @{Label = 'Department'; Expression = { $_.Group.Department | Sort-Object -Unique } }, @{Label = 'Title'; Expression = { $_.Group.Title | Sort-Object -Unique } } | Sort-Object -Property Name | ConvertTo-Html -Fragment | New-BootstrapTable New-BootstrapDiv -Text ($ThisHeading + $ThisSubHeading + $ThisTable) } } function Get-FolderTableHeader { param ($LevelsOfSubfolders) switch ($LevelsOfSubfolders ) { 0 { 'Includes the target folder only (option to report on subfolders was declined)' } -1 { 'Includes the target folder and all subfolders with unique permissions' } default { "Includes the target folder and $LevelsOfSubfolders levels of subfolders with unique permissions" } } } function Get-HtmlBody { param ( $FolderList, $HtmlFolderPermissions ) (New-HtmlHeading "Folders with Permissions in This Report" -Level 3) + $FolderList + (New-HtmlHeading "Accounts Included in Those Permissions" -Level 3) + $HtmlFolderPermissions } function Get-HtmlFolderList { param ( $FolderTableHeader, $HtmlTableOfFolders ) New-BootstrapDiv -Text ( (New-HtmlHeading $FolderTableHeader -Level 5) + $HtmlTableOfFolders ) } function Get-PrtgXmlSensorOutput { param ( $NtfsIssues ) $Channels = [System.Collections.Generic.List[string]]::new() # Build our XML output formatted for PRTG. $ChannelParams = @{ MaxError = 0.5 Channel = 'Folders with inheritance disabled' Value = ($NtfsIssues.FoldersWithBrokenInheritance | Measure-Object).Count CustomUnit = 'folders' } Format-PrtgXmlResult @ChannelParams | ForEach-Object { $null = $Channels.Add($_) } $ChannelParams = @{ MaxError = 0.5 Channel = 'ACEs for groups breaking naming convention' Value = ($NtfsIssues.NonCompliantGroups | Measure-Object).Count CustomUnit = 'ACEs' } Format-PrtgXmlResult @ChannelParams | ForEach-Object { $null = $Channels.Add($_) } $ChannelParams = @{ MaxError = 0.5 Channel = 'ACEs for users instead of groups' Value = ($NtfsIssues.UserACEs | Measure-Object).Count CustomUnit = 'ACEs' } Format-PrtgXmlResult @ChannelParams | ForEach-Object { $null = $Channels.Add($_) } $ChannelParams = @{ MaxError = 0.5 Channel = 'ACEs for unresolvable SIDs' Value = ($NtfsIssues.SIDsToCleanup | Measure-Object).Count CustomUnit = 'ACEs' } Format-PrtgXmlResult @ChannelParams | ForEach-Object { $null = $Channels.Add($_) } $ChannelParams = @{ MaxError = 0.5 Channel = "Folders with 'CREATOR OWNER' access" Value = ($NtfsIssues.FoldersWithCreatorOwner | Measure-Object).Count CustomUnit = 'folders' } Format-PrtgXmlResult @ChannelParams | ForEach-Object { $null = $Channels.Add($_) } Format-PrtgXmlSensorOutput -PrtgXmlResult $Channels -IssueDetected:$($NtfsIssues.IssueDetected) } function Get-ReportDescription { param ($LevelsOfSubfolders) switch ($LevelsOfSubfolders ) { 0 { 'Does not include permissions on subfolders (option was declined)' } -1 { 'Includes all subfolders with unique permissions (including ∞ levels of subfolders)' } default { "Includes all subfolders with unique permissions (down to $LevelsOfSubfolders levels of subfolders)" } } } function Select-FolderTableProperty { param ( $InputObject ) $InputObject | Select-Object -Property @{ Label = 'Folder' Expression = { $_.Name } }, @{ Label = 'Inheritance' Expression = { $_.Group.FolderInheritanceEnabled | Select-Object -First 1 } } } function Select-UniqueAccountPermission { param ( # Objects output from Format-SecurityPrincipal ... | Group-Object -Property User [Parameter(ValueFromPipeline)] $AccountPermission, <# Domain(s) to ignore (they will be removed from the username) Intended when a user has matching SamAccountNames in multiple domains but you only want them to appear once on the report. Can also be used to remove all domains simply for brevity in the report. #> [string[]]$IgnoreDomain, # Hashtable will be used to deduplicate $KnownUsers = [hashtable]::Synchronized(@{}) ) process { ForEach ($ThisUser in $AccountPermission) { $ShortName = $ThisUser.Name ForEach ($IgnoreThisDomain in $IgnoreDomain) { $ShortName = $ShortName -replace "^$IgnoreThisDomain\\", '' } $ThisKnownUser = $null $ThisKnownUser = $KnownUsers[$ShortName] if ($null -eq $ThisKnownUser) { $KnownUsers[$ShortName] = [pscustomobject]@{ 'Name' = $ShortName 'Group' = $ThisUser.Group } } else { $KnownUsers[$ShortName] = [pscustomobject]@{ 'Name' = $ShortName 'Group' = $ThisKnownUser.Group + $ThisUser.Group } } } } end { $KnownUsers.Values } } # Add any custom C# classes as usable (exported) types $CSharpFiles = Get-ChildItem -Path "$PSScriptRoot\*.cs" ForEach ($ThisFile in $CSharpFiles) { Add-Type -Path $ThisFile.FullName -ErrorAction Stop } Export-ModuleMember -Function @('Get-FolderAccessList','Get-FolderPermissionsBlock','Get-FolderTableHeader','Get-HtmlBody','Get-HtmlFolderList','Get-PrtgXmlSensorOutput','Get-ReportDescription','Select-FolderTableProperty','Select-UniqueAccountPermission') |