Export-Permission.ps1

<#PSScriptInfo
 
.VERSION 0.0.226
 
.GUID fd2d03cf-4d29-4843-bb1c-0fba86b0220a
 
.AUTHOR Jeremy La Camera
 
.COMPANYNAME Jeremy La Camera
 
.COPYRIGHT (c) Jeremy La Camera. All rights reserved.
 
.TAGS adsi ldap winnt ntfs acl
 
.LICENSEURI https://github.com/IMJLA/Export-Permission/blob/main/LICENSE
 
.PROJECTURI https://github.com/IMJLA/Export-Permission
 
.ICONURI
 
.EXTERNALMODULEDEPENDENCIES
 
.REQUIREDSCRIPTS
 
.EXTERNALSCRIPTDEPENDENCIES
 
.RELEASENOTES
add cim caching
 
.PRIVATEDATA
 
#>
 

#Requires -Module Adsi
#Requires -Module SimplePrtg
#Requires -Module PsNtfs
#Requires -Module PsLogMessage
#Requires -Module PsRunspace
#Requires -Module PsDfs
#Requires -Module PsBootstrapCss
#Requires -Module Permission




<#
.SYNOPSIS
    Create CSV, HTML, and XML reports of permissions
.DESCRIPTION
    Present complex nested permissions and group memberships in a report that is easy to read
    Provide additional information about each account such as Name, Department, Title
    Multithreaded with caching for fast results
    Works as a scheduled task
    Works as a custom sensor script for Paessler PRTG Network Monitor (Push sensor recommended due to execution time)
 
    Supports:
    - Local folder paths
    - UNC folder paths
    - DFS folder paths
    - Mapped network drives
    - Active Directory domain trusts
    - Unresolved SIDs for deleted accounts
    - Group memberships via the Primary Group as well as the memberOf property
 
    Does not support these scenarios:
    - ACL Owners or Groups (ToDo enhancement; for now only the DACL is reported)
    - File permissions (ToDo enhancement; for now only folder permissions are reported)
    - Share permissions (ToDo enhancement; for now only NTFS permissions are reported)
 
    Behavior:
    - Resolves each path in the TargetPath parameter
      - Local paths become UNC paths using the administrative shares, so the computer name is shown in reports
      - DFS paths become all of their UNC folder targets, including disabled ones
      - Mapped network drives become their UNC paths
    - Gets all permissions for the resolved paths
    - Gets non-inherited permissions for subfolders (if specified)
    - Exports the permissions to a .csv file
    - Uses ADSI to get information about the accounts and groups listed in the permissions
    - Exports information about the accounts and groups to a .csv file
    - Uses ADSI to recursively retrieve group members
      - Retrieves group members using both the memberOf and primaryGroupId attributes
      - Members of nested groups are retrieved as members of the group listed in the permissions.
          - Their hierarchy of nested group memberships is not retrieved (for performance reasons).
    - Exports information about all accounts with access to a .csv file
    - Exports information about all accounts with access to a report generated as a .html file
    - Outputs an XML-formatted list of common misconfigurations for use in Paessler PRTG Network Monitor as a custom XML sensor
.INPUTS
    [System.IO.DirectoryInfo[]] TargetPath parameter
 
    Strings can be passed to this parameter and will be re-cast as DirectoryInfo objects.
.OUTPUTS
    [System.String] XML output formatted for a Custom XML Sensor in Paessler PRTG Network Monitor
.NOTES
    This code has not been reviewed or audited by a third party
 
    This code has limited or no tests
 
    It was designed for presenting reports to non-technical management or administrative staff
 
    It is convenient for that purpose but it is not recommended for compliance reporting or similar formal uses
 
    ToDo bugs/enhancements: https://github.com/IMJLA/Export-Permission/issues
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test
 
    Generate reports on the NTFS permissions for the folder C:\Test and all subfolders
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -ExcludeAccount 'BUILTIN\\Administrator'
 
    Generate reports on the NTFS permissions for the folder C:\Test and all subfolders
 
    Exclude the built-in Administrator account from the HTML report
 
    The ExcludeAccount parameter uses RegEx, so the \ in BUILTIN\Administrator needed to be escaped.
 
    The RegEx escape character is \ so the regular expression needed for the parameter is 'BUILTIN\\Administrator'
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -ExcludeAccount @(
        'BUILTIN\\Administrators',
        'BUILTIN\\Administrator',
        'CREATOR OWNER',
        'NT AUTHORITY\\SYSTEM'
    )
 
    Generate reports on the NTFS permissions for the folder C:\Test and all subfolders
 
    Exclude from the HTML report:
    - The built-in Administrator account
    - The built-in Administrators group and its members (unless they appear elsewhere in the permissions)
    - The CREATOR OWNER security principal
    - The computer account (NT AUTHORITY\SYSTEM)
 
    Note: CREATOR OWNER will still be reported as an alarm in the PRTG XML output
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -ExcludeClass @('computer')
 
    Generate reports on the NTFS permissions for the folder C:\Test and all subfolders
 
    Include empty groups on the HTML report (rather than the default setting which would exclude computers and groups)
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -NoGroupMembers -ExcludeClass @('computer')
 
    Generate reports on the NTFS permissions for the folder C:\Test
 
    Do not spend time retrieving group members
 
    Include groups on the report, but exclude computers (rather than the default setting which would exclude computers and groups)
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -IgnoreDomain 'CONTOSO'
 
    Generate reports on the NTFS permissions for the folder C:\Test and all subfolders
 
    Remove the CONTOSO domain prefix from associated accounts and groups
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -IgnoreDomain 'CONTOSO1','CONTOSO2'
 
    Generate reports on the NTFS permissions for the folder C:\Test and all subfolders
 
    Remove the CONTOSO1\ and CONTOSO2\ domain prefixes from associated accounts and groups
 
    Across the two domains, accounts with the same samAccountNames will be considered equivalent
 
    Across the two domains, groups with the same Names will be considered equivalent
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -LogDir C:\Logs
 
    Generate reports on the NTFS permissions for the folder C:\Test and all subfolders
 
    Redirect logs and output files to C:\Logs instead of the default location in AppData
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -RecurseDepth 0
 
    Generate reports on the NTFS permissions for the folder C:\Test only (no subfolders)
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -RecurseDepth 2
 
    Generate reports on the NTFS permissions for the folder C:\Test
 
    Only include subfolders to a maximum of 2 levels deep (C:\Test\Level1\Level2)
.EXAMPLE
    Export-Permission.ps1 -TargetPath C:\Test -Title 'New Custom Report Title'
 
    Generate reports on the NTFS permissions for the folder C:\Test and all subfolders
 
    Change the title of the HTML report to 'New Custom Report Title'
.EXAMPLE
    Export-Permission.ps1 -TargetPath '\\ad.contoso.com\DfsNamespace\DfsFolderWithTarget'
 
    The target path is a DFS folder with folder targets
 
    Generate reports on the NTFS permissions for the DFS folder targets associated with this path
.EXAMPLE
    Export-Permission.ps1 -TargetPath '\\ad.contoso.com\DfsNamespace\DfsFolderWithoutTarget\DfsSubfolderWithoutTarget\DfsSubfolderWithTarget'
 
    The target path is a DFS subfolder with folder targets
 
    Generate reports on the NTFS permissions for the DFS folder targets associated with this path
.EXAMPLE
    Export-Permission.ps1 -TargetPath '\\ad.contoso.com\DfsNamespace\DfsFolderWithoutTarget\DfsSubfolderWithoutTarget\DfsSubfolderWithTarget\Subfolder'
 
    The target path is a subfolder of a DFS subfolder with folder targets
 
    Generate reports on the NTFS permissions for the DFS folder targets associated with this path
.EXAMPLE
    Export-Permission.ps1 -TargetPath '\\ad.contoso.com\'
 
    This is an edge case that is not currently supported
 
    The target path is the root of an AD domain
 
    Generate reports on the NTFS permissions for ? Invalid/fail param validation?
.EXAMPLE
    Export-Permission.ps1 -TargetPath '\\computer.ad.contoso.com\'
 
    This is an edge case that is not currently supported
 
    The target path is the root of a server
 
    Generate reports on the NTFS permissions for ? Invalid/fail param validation?
.EXAMPLE
    Export-Permission.ps1 -TargetPath '\\ad.contoso.com\DfsNamespace'
 
    This is an edge case that is not currently supported
 
    The target path is a DFS namespace
 
    Generate reports on the NTFS permissions for the folder on the DFS namespace server associated with this path
 
    Add a warning that they are permissions from the DFS namespace server and could be confusing
.EXAMPLE
    Export-Permission.ps1 -TargetPath '\\ad.contoso.com\DfsNamespace\DfsFolderWithoutTarget'
 
    This is an edge case that is not currently supported.
 
    The target path is a DFS folder without a folder target
 
    Generate reports on the NTFS permissions for the folder on the DFS namespace server associated with this path
 
    Add a warning that they are permissions from the DFS namespace server and could be confusing
.EXAMPLE
    Export-Permission.ps1 -TargetPath '\\ad.contoso.com\DfsNamespace\DfsFolderWithoutTarget\DfsSubfolderWithoutTarget'
 
    This is an edge case that is not currently supported.
 
    The target path is a DFS subfolder without a folder target.
 
    Generate reports on the NTFS permissions for the folder on the DFS namespace server associated with this path
 
    Add a warning that they are permissions from the DFS namespace server and could be confusing
#>

param (

    # Path to the NTFS folder whose permissions to export
    [Parameter(Mandatory, ValueFromPipeline)]
    [ValidateScript({ Test-Path $_ })]
    [System.IO.DirectoryInfo[]]$TargetPath,

    # Regular expressions matching names of security principals to exclude from the HTML report
    [string[]]$ExcludeAccount = 'SYSTEM',

    <#
    Accounts whose objectClass property is in this list are excluded from the HTML report
 
    Note on the 'group' class:
      By default, a group with members is replaced in the report by its members unless the -NoGroupMembers switch is used.
      Any remaining groups are empty and not useful to see in the middle of a list of users/job titles/departments/etc).
      So the 'group' class is excluded here by default.
    #>

    [string[]]$ExcludeClass = @('group', 'computer'),

    <#
    Domain(s) to ignore (they will be removed from the username)
 
    Can be used:
      to ensure accounts only appear once on the report when they have matching SamAccountNames in multiple domains.
      when the domain is often the same and doesn't need to be displayed
    #>

    [string[]]$IgnoreDomain,

    # Path to the folder to save the logs and reports generated by this script
    [string]$OutputDir = "$env:AppData\Export-Permission",

    <#
    Do not get group members (only report the groups themselves)
 
    Note: By default, the -ExcludeClass parameter will exclude groups from the report.
      If using -NoGroupMembers, you most likely want to modify the value of -ExcludeClass.
      Remove the 'group' class from ExcludeClass in order to see groups on the report.
    #>

    [switch]$NoMembers,

    <#
    How many levels of children to enumerate
 
      Set to 0 to ignore all children
      Set to -1 (default) to recurse through all children
      Set to any whole number to enumerate that many levels of children
    #>

    [int]$RecurseDepth = -1,

    # Title at the top of the HTML report
    [string]$Title = 'Permissions Report',

    <#
    Valid group names that are allowed to appear in ACEs
 
    Specify as a ScriptBlock meant for the FilterScript parameter of Where-Object
 
    By default, this is a ScriptBlock that always evaluates to $true so it doesn't evaluate any naming convention compliance
 
    In the ScriptBlock, use string comparisons on the Name property
 
    e.g. {$_.Name -like 'CONTOSO\Group1*' -or $_.Name -eq 'CONTOSO\Group23'}
 
    The naming format that will be used for the groups is CONTOSO\Group1
 
      where CONTOSO is the NetBIOS name of the domain, and Group1 is the samAccountName of the group
    #>

    [scriptblock]$GroupNameRule = { $true },

    # Number of asynchronous threads to use
    [uint16]$ThreadCount = (Get-CimInstance -ClassName CIM_Processor | Measure-Object -Sum -Property NumberOfLogicalProcessors).Sum,

    # Open the HTML report after the script is finished using Invoke-Item (only useful interactively)
    [switch]$Interactive,

    # Generate a report with only HTML and CSS but no JavaScript
    [switch]$NoJavaScript,

    <#
    If all four of the PRTG parameters are specified,
 
    the results will be XML-formatted and pushed to the specified PRTG probe for a push sensor
    #>

    [string]$PrtgProbe,

    <#
    If all four of the PRTG parameters are specified,
 
    the results will be XML-formatted and pushed to the specified PRTG probe for a push sensor
    #>

    [string]$PrtgProtocol,

    <#
    If all four of the PRTG parameters are specified,
 
    the results will be XML-formatted and pushed to the specified PRTG probe for a push sensor
    #>

    [uint16]$PrtgPort,

    <#
    If all four of the PRTG parameters are specified,
 
    the results will be XML-formatted and pushed to the specified PRTG probe for a push sensor
    #>

    [string]$PrtgToken,

    <#
    Type of output returned to the output stream
    #>

    [ValidateSet('PassThru', 'PrtgXml', 'None')]
    [string]$OutputMode = 'PassThru'

)

begin {

    # Create a splat of the constant Write-Progress parameters for script readability
    $Progress = @{
        Activity = 'Export-Permission'
        Id       = 0
    }

    Write-Progress -Status '0% (step 1 of 20)' -CurrentOperation 'Initializing' -PercentComplete 0 @Progress

    #----------------[ Functions ]------------------

    # This is where the function definitions will be inserted in the portable version of this script

    #----------------[ Logging ]----------------

    # Start a timer to measure progress and performance
    $StopWatch = [System.Diagnostics.Stopwatch]::new()
    $null = $StopWatch.Start()

    # Generate a unique ID for this run of the script
    $ReportInstanceId = [guid]::NewGuid().ToString()

    # Create a folder to store logs
    $OutputDir = New-DatedSubfolder -Root $OutputDir -Suffix "_$ReportInstanceId"

    <# Start the PowerShell transcript
       PowerShell cannot redirect the Success stream of Start-Transcript to the Information stream
       But it can redirect it to $null, and then send the Transcript file path to Write-Information
    #>

    $TranscriptFile = "$OutputDir\PowerShellTranscript.log"
    Start-Transcript $TranscriptFile *>$null
    Write-Information $TranscriptFile

    #----------------[ Declarations ]----------------

    $CsvFilePath1 = "$OutputDir\1-AccessControlList.csv"
    $CsvFilePath2 = "$OutputDir\2-AccessControlListWithResolvedIdentityReferences.csv"
    $CsvFilePath3 = "$OutputDir\3-AccessControlListWithADSISecurityPrincipals.csv"
    $XmlFile = "$OutputDir\4-PrtgResult.xml"
    $ReportFile = "$OutputDir\PermissionsReport.htm"
    $LogFile = "$OutputDir\Export-Permission.log"
    $DirectoryEntryCache = [hashtable]::Synchronized(@{})
    $Win32AccountsBySID = [hashtable]::Synchronized(@{})
    $Win32AccountsByCaption = [hashtable]::Synchronized(@{})
    $DomainsBySID = [hashtable]::Synchronized(@{})
    $DomainsByNetbios = [hashtable]::Synchronized(@{})
    $DomainsByFqdn = [hashtable]::Synchronized(@{})
    $LogCache = [hashtable]::Synchronized(@{})
    $CimCache = [hashtable]::Synchronized(@{})
    $UNCPaths = [System.Collections.Generic.List[String]]::new()

    # Get the hostname of the computer running the script
    $ThisHostname = HOSTNAME.EXE

    # Get the NTAccount caption of the user running the script, with the correct capitalization
    $WhoAmI = Get-CurrentWhoAmI -LogMsgCache $LogCache -ThisHostName $ThisHostname

    # Create a splat of the parent progress bar ID to pass to various functions for script readability
    $ProgressParent = @{
        ProgressParentId = 0
    }

    # Create a splat of the ThreadCount parameter to pass to various functions for script readability
    $Threads = @{
        ThreadCount = $ThreadCount
    }

    # Create a splat of log-related parameters to pass to various functions for script readability
    $LoggingParams = @{
        ThisHostname = $ThisHostname
        LogMsgCache  = $LogCache
        WhoAmI       = $WhoAmI
    }

    # Create a splat of constant Write-LogMsg parameters for script readability
    $LogParams = @{
        ThisHostname = $ThisHostname
        Type         = 'Debug'
        LogMsgCache  = $LogCache
        WhoAmI       = $WhoAmI
    }

    # These events already happened but we will log them now that we have the correct capitalization of the user
    Write-LogMsg @LogParams -Text 'HOSTNAME.EXE # This command was already run but is now being logged'
    Write-LogMsg @LogParams -Text 'Get-CurrentWhoAmI # This command was already run but is now being logged'

    # Get the FQDN of the computer running the script
    Write-LogMsg @LogParams -Text "ConvertTo-DnsFqdn -ComputerName '$ThisHostName'"
    $ThisFqdn = ConvertTo-DnsFqdn -ComputerName $ThisHostName @LoggingParams

    # Create a map of parameters to enable caching functionality in supported functions
    $CacheParams = @{
        Win32AccountsBySID     = $Win32AccountsBySID
        Win32AccountsByCaption = $Win32AccountsByCaption
        DirectoryEntryCache    = $DirectoryEntryCache
        DomainsByFqdn          = $DomainsByFqdn
        DomainsByNetbios       = $DomainsByNetbios
        DomainsBySid           = $DomainsBySid
        ThisFqdn               = $ThisFqdn
        ThreadCount            = $ThreadCount
    }

    Write-LogMsg @LogParams -Text "Get-ReportDescription -RecurseDepth $RecurseDepth"
    $ReportDescription = Get-ReportDescription -RecurseDepth $RecurseDepth

    Write-LogMsg @LogParams -Text "Get-FolderTableHeader -RecurseDepth $RecurseDepth"
    $FolderTableHeader = Get-FolderTableHeader -RecurseDepth $RecurseDepth

    Write-LogMsg @LogParams -Text "Get-TrustedDomain"
    $TrustedDomains = Get-TrustedDomain @LoggingParams

}

process {

    #----------------[ Main Execution ]---------------

    Write-Progress -Status '5% (step 2 of 20)' -CurrentOperation 'Resolve target paths to UNC paths (including all DFS folder targets)' -PercentComplete 5 @Progress
    Write-LogMsg @LogParams -Text "Resolve-PermissionTarget -TargetPath @('$($TargetPath -join "',")')))"
    [string[]]$ResolvedFolderTargets = Resolve-PermissionTarget -TargetPath $TargetPath -CimCache $CimCache @LoggingParams
    $UNCPaths.AddRange($ResolvedFolderTargets)

}

end {

    Write-Progress -Status '10% (step 3 of 20)' -CurrentOperation 'Expand UNC paths into the paths of their subfolders' -PercentComplete 10 @Progress
    Write-LogMsg @LogParams -Text "Expand-Folder -Folder @('$($UNCPaths -join "',")') -RecurseDepth $RecurseDepth"
    $Subfolders = Expand-Folder -Folder $UNCPaths -RecurseDepth $RecurseDepth @Threads @ProgressParent @LoggingParams

    Write-Progress -Status '15% (step 4 of 20)' -CurrentOperation 'Get raw permissions on the expanded paths' -PercentComplete 15 @Progress
    Write-LogMsg @LogParams -Text "`$Permissions = Get-FolderAccessList -Folder @('$($UNCPaths -join "','")') -Subfolder @('$($Subfolders -join "','")')"
    $Permissions = Get-FolderAccessList -Folder $UNCPaths -Subfolder $Subfolders @Threads @ProgressParent @LoggingParams

    Write-Progress -Status '20% (step 5 of 20)' -CurrentOperation 'Save a CSV report of the raw permissions' -PercentComplete 20 @Progress
    Write-LogMsg @LogParams -Text "Export-RawPermissionCsv -Permission `$Permissions -LiteralPath '$CsvFilePath1'"
    Export-RawPermissionCsv -Permission $Permissions -LiteralPath $CsvFilePath1 @ProgressParent @LoggingParams

    Write-Progress -Status '25% (step 6 of 20)' -CurrentOperation 'Get FQDNs of the current computer, trusted domains, and the servers in the UNC paths' -PercentComplete 25 @Progress
    $FqdnParams = @{
        Known    = $TrustedDomains.DomainFqdn
        FilePath = $Permissions.SourceAccessList.Path
        ThisFqdn = $ThisFqdn
    }
    Write-LogMsg @LogParams -Text "`$ServerFqdns = Get-UniqueServerFqdn -Known @('$($FqdnParams['Known'] -join "',")') -FilePath @('$($FqdnParams['FilePath'] -join "',")') -ThisFqdn '$ThisFqdn'"
    $ServerFqdns = Get-UniqueServerFqdn @FqdnParams @LoggingParams @ProgressParent

    Write-Progress -Status '30% (step 7 of 20)' -CurrentOperation 'Query the FQDNs and pre-populate caches in memory to avoid redundant ADSI and CIM queries' -PercentComplete 30 @Progress
    Write-LogMsg @LogParams -Text "Initialize-Cache -ServerFqdns @('$($ServerFqdns -join "',")')"
    Initialize-Cache -Fqdn $ServerFqdns @ProgressParent @LoggingParams @CacheParams

    # The resolved name will include the domain name (or local computer name for local accounts)
    Write-Progress -Status '35% (step 8 of 20)' -CurrentOperation 'Resolve each identity reference to its SID and NTAccount name' -PercentComplete 35 @Progress
    Write-LogMsg @LogParams -Text '$PermissionsWithResolvedIdentities = Resolve-PermissionIdentity -Permission $Permissions'
    $PermissionsWithResolvedIdentities = Resolve-PermissionIdentity @LoggingParams @CacheParams -Permission $Permissions @ProgressParent

    Write-Progress -Status '40% (step 9 of 20)' -CurrentOperation 'Save a CSV report of the resolved identity references' -PercentComplete 40 @Progress
    Write-LogMsg @LogParams -Text "Export-ResolvedPermissionCsv -Permission `$Permissions -LiteralPath '$CsvFilePath2'"
    Export-ResolvedPermissionCsv @LoggingParams -Permission $Permissions -LiteralPath $CsvFilePath2 @ProgressParent

    Write-Progress -Status '45% (step 10 of 20)' -CurrentOperation 'Group permissions by their resolved identity references' -PercentComplete 45 @Progress
    Write-LogMsg @LogParams -Text "`$Identities = `$PermissionsWithResolvedIdentities | Group-Object -Property IdentityReferenceResolved"
    $Identities = $PermissionsWithResolvedIdentities | Group-Object -Property IdentityReferenceResolved

    Write-Progress -Status '50% (step 11 of 20)' -CurrentOperation 'Use ADSI to get details about each resolved identity reference' -PercentComplete 50 @Progress
    Write-LogMsg @LogParams -Text "`$SecurityPrincipals = Get-PermissionPrincipal -Identity `$Identities -NoGroupMembers:`$$NoMembers"
    $SecurityPrincipals = Get-PermissionPrincipal -Identity $Identities -NoGroupMembers:$NoMembers @LoggingParams @CacheParams @ProgressParent

    Write-Progress -Status '55% (step 12 of 20)' -CurrentOperation 'Format the ADSI security principals (distinguish group members from accounts directly listed in the ACLs)' -PercentComplete 55 @Progress
    Write-LogMsg @LogParams -Text "`$FormattedSecurityPrincipals = Format-PermissionAccount -SecurityPrincipal `$SecurityPrincipals @Threads"
    $FormattedSecurityPrincipals = Format-PermissionAccount -SecurityPrincipal $SecurityPrincipals @Threads @LoggingParams @ProgressParent

    Write-Progress -Status '60% (step 13 of 20)' -CurrentOperation 'Expand the security principals back into their permissions (one per ACE per principal)' -PercentComplete 60 @Progress
    Write-LogMsg @LogParams -Text "`$ExpandedAccountPermissions = Expand-AcctPermission -SecurityPrincipal `$FormattedSecurityPrincipals @Threads"
    $ExpandedAccountPermissions = Expand-AcctPermission -SecurityPrincipal $FormattedSecurityPrincipals @Threads @LoggingParams @ProgressParent

    #ToDo: Expand DirectoryEntry objects in the DirectoryEntry and Members properties
    Write-Progress -Status '65% (step 14 of 20)' -CurrentOperation 'Save a CSV report of the expanded account permissions' -PercentComplete 65 @Progress
    Write-LogMsg @LogParams -Text "`$ExpandedAccountPermissions | Export-Csv -NoTypeInformation -LiteralPath '$CsvFilePath3'"
    $ExpandedAccountPermissions | Export-Csv -NoTypeInformation -LiteralPath $CsvFilePath3
    Write-Information $CsvFilePath3

    Write-Progress -Status '70% (step 15 of 20)' -CurrentOperation 'Group the permissions by account for domain name hiding' -PercentComplete 70 @Progress
    Write-LogMsg @LogParams -Text "`$Accounts = `$ExpandedAccountPermissions | Group-Object -Property User"
    $Accounts = $ExpandedAccountPermissions | Group-Object -Property user

    Write-Progress -Status '75% (step 16 of 20)' -CurrentOperation 'Hide domain names we do not want on the report' -PercentComplete 75 @Progress
    $IgnoreDomainString = "@('$($IgnoreDomain -join "',")')"
    Write-LogMsg @LogParams -Text "`$UniqueAccountPermissions = Select-UniqueAccountPermission -AccountPermission `$Accounts -IgnoreDomain $IgnoreDomainString"
    $UniqueAccountPermissions = Select-UniqueAccountPermission -AccountPermission $Accounts -IgnoreDomain $IgnoreDomain

    Write-Progress -Status '80% (step 17 of 20)' -CurrentOperation 'Format, group, and sort the permissions by folder for the report' -PercentComplete 80 @Progress
    Write-LogMsg @LogParams -Text "Format-FolderPermission -UserPermission `$UniqueAccountPermissions | Group Folder | Sort Name"

    $FolderPermissions = Format-FolderPermission -UserPermission $UniqueAccountPermissions @ProgressParent @LogParams |
    Group-Object -Property Folder |
    Sort-Object -Property Name

    # The first version uses no JavaScript so it can be rendered by e-mail clients
    # The second version is JavaScript-dependent and will not work in e-mail clients
    Write-Progress -Status '85% (step 18 of 20)' -CurrentOperation 'Export the HTML report' -PercentComplete 85 @Progress
    $ExportFolderPermissionHtml = @{ FolderPermissions = $FolderPermissions ; ExcludeAccount = $ExcludeAccount ; ExcludeClass = $ExcludeClass ;
        IgnoreDomain = $IgnoreDomain ; TargetPath = $TargetPath ; LogParams = $LogParams ; ReportDescription = $ReportDescription ; FolderTableHeader = $FolderTableHeader ;
        NoGroupMembers = $NoMembers ; ReportFileList = $CsvFilePath1, $CsvFilePath2, $CsvFilePath3, $XmlFile; ReportFile = $ReportFile ;
        LogFileList = $TranscriptFile, $LogFile ; OutputDir = $OutputDir ; ReportInstanceId = $ReportInstanceId ; WhoAmI = $WhoAmI ; ThisFqdn = $ThisFqdn ;
        StopWatch = $StopWatch ; Subfolders = $Subfolders ; ResolvedFolderTargets = $UNCPaths ; Title = $Title; NoJavaScript = $NoJavaScript
    }
    Write-LogMsg @LogParams -Text 'Export-FolderPermissionHtml @ExportFolderPermissionHtml'
    Export-FolderPermissionHtml @ExportFolderPermissionHtml

    # ToDo: Users with ownership
    $NtfsIssueParams = @{
        FolderPermissions = $FolderPermissions
        UserPermissions   = $Accounts
        GroupNameRule     = $GroupNameRule
        TodaysHostname    = $ThisHostname
        WhoAmI            = $WhoAmI
        LogMsgCache       = $LogCache
    }
    Write-Progress -Status '90% (step 19 of 20)' -CurrentOperation 'Identify common issues with permissions' -PercentComplete 90 @Progress
    Write-LogMsg @LogParams -Text 'New-NtfsAclIssueReport @NtfsIssueParams'
    $NtfsIssues = New-NtfsAclIssueReport @NtfsIssueParams

    Write-Progress -Status '95% (step 20 of 20)' -CurrentOperation 'Output results' -PercentComplete 95 @Progress

    # Format the issues as a custom XML sensor for Paessler PRTG Network Monitor
    Write-LogMsg @LogParams -Text "Get-PrtgXmlSensorOutput -NtfsIssues `$NtfsIssues"
    $XMLOutput = Get-PrtgXmlSensorOutput -NtfsIssues $NtfsIssues

    # Output the full path of the XML file (result of the custom XML sensor for Paessler PRTG Network Monitor) to the Information stream
    Write-Information $XmlFile

    # Save the XML file to disk
    $null = Set-Content -LiteralPath $XmlFile -Value $XMLOutput

    # Send the XML to a PRTG Custom XML Push sensor for tracking
    $PrtgParams = @{
        XmlOutput    = $XMLOutput
        PrtgProbe    = $PrtgProbe
        PrtgProtocol = $PrtgProtocol
        PrtgPort     = $PrtgPort
        PrtgToken    = $PrtgToken
    }
    Write-LogMsg @LogParams -Text "Send-PrtgXmlSensorOutput @PrtgParams"
    Send-PrtgXmlSensorOutput @PrtgParams

    # Open the HTML report file (useful only interactively)
    if ($Interactive) {
        Invoke-Item $ReportFile
    }

    # Output the full path of the log file to the Information stream
    Write-Information $LogFile

    # Save the log file to disk
    $LogCache.Values | Sort-Object -Property Timestamp |
    Export-Csv -Delimiter "`t" -NoTypeInformation -LiteralPath $LogFile

    Stop-Transcript  *>$null

    Write-Progress @Progress -Completed

    # Output the XML so the script can be directly used as a PRTG sensor
    # Caution: This use may be a problem for a PRTG probe because of how long the script can run on large folders/domains
    # Recommendation: Specify the appropriate parameters to run this as a PRTG push sensor instead

    return $XMLOutput

}